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<div class="titlepage"><div><div><h1 class="title">
<a name="dist.news.old"></a>3. OLDER NEWS</h1></div></div></div>
<div class="literallayout"><p><br>
Release 3.18.0 (15 Oct 2021)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris, AMD64/MacOSX 10.12, X86/FreeBSD and<br>
AMD64/FreeBSD. There is also preliminary support for X86/macOS 10.13,<br>
AMD64/macOS 10.13 and nanoMIPS/Linux.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* The libiberty demangler has been updated, which brings support for<br>
Rust v0 name demangling. [Update: alas, due to a bug, this support<br>
isn't working in 3.18.0.]<br>
<br>
* __libc_freeres isn't called anymore after the program recieves a<br>
fatal signal. Causing some internal glibc resources to hang around,<br>
but preventing any crashes after the program has ended.<br>
<br>
* The DWARF reader is now very much faster at startup when just<br>
--read-inline-info=yes (the default in most cases) is given.<br>
<br>
* glibc 2.34, which moved various functions from libpthread.so into<br>
libc.so, is now supported.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* arm64:<br>
<br>
- v8.2 scalar and vector FABD, FACGE, FACGT and FADD.<br>
- v8.2 FP compare & conditional compare instructions.<br>
- Zero variants of v8.2 FP compare instructions.<br>
<br>
* s390:<br>
<br>
- Support the miscellaneous-instruction-extensions facility 3 and<br>
the vector-enhancements facility 2. This enables programs<br>
compiled with "-march=arch13" or "-march=z15" to be executed<br>
under Valgrind.<br>
<br>
* ppc64:<br>
<br>
- ISA 3.1 support is now complete<br>
- ISA 3.0 support for the darn instruction added.<br>
- ISA 3.0 support for the vector system call instruction scv added.<br>
- ISA 3.0 support for the copy, paste and cpabort instructions added.<br>
<br>
* Support for X86/FreeBSD and AMD64/FreeBSD has been added.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* Memcheck on amd64: minor fixes to remove some false positive<br>
undef-value errors<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
208531 [PATCH]: FreeBSD support for valgrind<br>
368960 WARNING: unhandled amd64-linux syscall: 163 (acct)<br>
407589 [Linux] Add support for C11 aligned_alloc() and GNU reallocarray()<br>
423963 Error in child thread when CLONE_PIDFD is used<br>
426148 crash with "impossible happened" when running BPF CO-RE programs<br>
429375 PPC ISA 3.1 support is missing, part 9<br>
431157 PPC_FEATURE2_SCV needs to be masked in AT_HWCAP2<br>
431306 Update demangler to support Rust v0 name mangling<br>
432387 s390x: z15 instructions support<br>
433437 FreeBSD support, part 1<br>
433438 FreeBSD support, part 2<br>
433439 FreeBSD support, part 3<br>
433469 FreeBSD support, part 4<br>
433473 FreeBSD support, part 5<br>
433477 FreeBSD support, part 6<br>
433479 FreeBSD support, part 7<br>
433504 FreeBSD support, part 8<br>
433506 FreeBSD support, part 9<br>
433507 FreeBSD support, part 10<br>
433508 FreeBSD support, part 11<br>
433510 FreeBSD support, part 12<br>
433801 PPC ISA 3.1 support is missing, part 10 (ISA 3.1 support complete)<br>
433863 s390x: memcheck/tests/s390x/{cds,cs,csg} failures<br>
434296 s390x: False-positive memcheck diagnostics from vector string<br>
instructions<br>
434840 PPC64 darn instruction not supported<br>
435665 PPC ISA 3.0 copy, paste, cpabort instructions are not supported <br>
435908 valgrind tries to fetch from deubginfod for files which already<br>
have debug information<br>
438871 unhandled instruction bytes: 0xF3 0x49 0xF 0x6F 0x9C 0x24 0x60 0x2<br>
439046 valgrind is unusably large when linked with lld<br>
439090 Implement close_range(2)<br>
439326 Valgrind 3.17.0 won't compile with Intel 2021 oneAPI compilers<br>
439590 glibc-2.34 breaks suppressions against obj:*/lib*/libc-2.*so*<br>
440670 unhandled ppc64le-linux syscall: 252 statfs64 and 253 fstatfs64<br>
440906 Fix impossible constraint issue in P10 testcase.<br>
441512 Remove a unneeded / unnecessary prefix check.<br>
441534 Update the expected output for test_isa_3_1_VRT.<br>
442061 very slow execution under Fedora 34 (readdwarf3)<br>
443031 Gcc -many change requires explicit .machine directives<br>
443033 Add support for the ISA 3.0 mcrxrx instruction<br>
443034 Sraw, srawi, srad, sradi, mfs<br>
443178 Powerpc, test jm-mfspr expected output needs to be updated.<br>
443179 Need new test for the lxvx and stxvx instructions on ISA 2.07 and<br>
ISA 3.0 systems.<br>
443180 The subnormal test and the ISA 3.0 test generate compiler warnings<br>
443314 In the latest GIT version, Valgrind with "--trace-flags" crashes<br>
at "al" register<br>
443605 Don't call final_tidyup (__libc_freeres) on FatalSignal<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
(3.18.0.RC1: 12 Oct 2021)<br>
(3.18.0: 15 Oct 2021)<br>
<br>
<br>
<br>
Release 3.17.0 (19 Mar 2021)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.17.0 fixes a number of bugs and adds some functional changes: support for<br>
GCC 11, Clang 11, DWARF5 debuginfo, the 'debuginfod' debuginfo server, and<br>
some new instructions for Arm64, S390 and POWER. There are also some tool<br>
updates.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12. There is also preliminary<br>
support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* DWARF version 5 support. Valgrind can now read DWARF version 5 debuginfo as<br>
produced by GCC 11.<br>
<br>
* Valgrind now supports debuginfod, an HTTP server for distributing ELF/DWARF<br>
debugging information. When a debuginfo file cannot be found locally,<br>
Valgrind is able to query debuginfod servers for the file using its<br>
build-id. See the user manual for more information about debuginfod support.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* arm64:<br>
<br>
- Inaccuracies resulting from double-rounding in the simulation of<br>
floating-point multiply-add/subtract instructions have been fixed. These<br>
should now behave exactly as the hardware does.<br>
<br>
- Partial support for the ARM v8.2 instruction set. v8.2 support work is<br>
ongoing. Support for the half-word variants of at least the following<br>
instructions has been added:<br>
FABS <Hd>, <Hn><br>
FABS <Vd>.<T>, <Vn>.<T><br>
FNEG <Hd>, <Hn><br>
FNEG <Vd>.<T>, <Vn>.<T><br>
FSQRT <Hd>, <Hn><br>
FSQRT <Vd>.<T>, <Vn>.<T><br>
FADDP<br>
<br>
* s390:<br>
<br>
- Implement the new instructions/features that were added to z/Architecture<br>
with the vector-enhancements facility 1. Also cover the instructions from<br>
the vector-packed-decimal facility that are defined outside the chapter<br>
"Vector Decimal Instructions", but not the ones from that chapter itself.<br>
<br>
For a detailed list of newly supported instructions see the updates to<br>
`docs/internals/s390-opcodes.csv'.<br>
<br>
Since the miscellaneous instruction extensions facility 2 was already<br>
added in Valgrind 3.16.0, this completes the support necessary to run<br>
general programs built with `--march=z14' under Valgrind. The<br>
vector-packed-decimal facility is currently not exploited by the standard<br>
toolchain and libraries.<br>
<br>
* ppc64:<br>
<br>
- Various bug fixes. Fix for the sync field to limit setting just two of<br>
the two bits in the L-field. Fix the write size for the stxsibx and<br>
stxsihx instructions. Fix the modsw and modsd instructions.<br>
<br>
- Partial support for ISA 3.1 has been added. Support for the VSX PCV mask<br>
instructions, bfloat16 GER instructions, and bfloat16 to/from float 32-bit<br>
conversion instructions are still missing.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* General tool changes<br>
<br>
- All the tools and their vgpreload libraries are now installed under<br>
libexec because they cannot be executed directly and should be run through<br>
the valgrind executable. This should be an internal, not user visible,<br>
change, but might impact valgrind packagers.<br>
<br>
- The --track-fds option now respects -q, --quiet and won't output anything<br>
if no file descriptors are leaked. It also won't report the standard stdin<br>
(0), stdout (1) or stderr (2) descriptors as being leaked with<br>
--trace-fds=yes anymore. To track whether the standard file descriptors<br>
are still open at the end of the program run use --trace-fds=all.<br>
<br>
* DHAT:<br>
<br>
- DHAT has been extended, with two new modes of operation. The new<br>
--mode=copy flag triggers copy profiling, which records calls to memcpy,<br>
strcpy, and similar functions. The new --mode=ad-hoc flag triggers ad hoc<br>
profiling, which records calls to the DHAT_AD_HOC_EVENT client request in<br>
the new dhat/dhat.h file. This is useful for learning more about hot code<br>
paths. See the user manual for more information about the new modes.<br>
<br>
- Because of these changes, DHAT's file format has changed. DHAT output<br>
files produced with earlier versions of DHAT will not work with this<br>
version of DHAT's viewer, and DHAT output files produced with this version<br>
of DHAT will not work with earlier versions of DHAT's viewer.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
140178 open("/proc/self/exe", ...); doesn't quite work<br>
140939 --track-fds reports leakage of stdout/in/err and doesn't respect -q<br>
217695 malloc/calloc/realloc/memalign failure doesn't set errno to ENOMEM<br>
338633 gdbserver_tests/nlcontrolc.vgtest hangs on arm64<br>
345077 linux syscall execveat support (linux 3.19)<br>
361770 Missing F_ADD_SEALS<br>
369029 handle linux syscalls sched_getattr and sched_setattr<br>
384729 __libc_freeres inhibits cross-platform valgrind<br>
388787 Support for C++17 new/delete<br>
391853 Makefile.all.am:L247 and @SOLARIS_UNDEF_LARGESOURCE@ being empty<br>
396656 Warnings while reading debug info<br>
397605 ioctl FICLONE mishandled<br>
401416 Compile failure with openmpi 4.0<br>
408663 Suppression file for musl libc<br>
404076 s390x: z14 vector instructions not implemented<br>
410743 shmat() calls for 32-bit programs fail when running in 64-bit valgrind<br>
(actually affected all x86 and nanomips regardless of host bitness)<br>
413547 regression test does not check for Arm 64 features.<br>
414268 Enable AArch64 feature detection and decoding for v8.x instructions<br>
415293 Incorrect call-graph tracking due to new _dl_runtime_resolve_xsave*<br>
422174 unhandled instruction bytes: 0x48 0xE9 (REX prefixed JMP instruction)<br>
422261 platform selection fails for unqualified client name<br>
422623 epoll_ctl warns for uninitialized padding on non-amd64 64bit arches<br>
423021 PPC: Add missing ISA 3.0 documentation link and HWCAPS test.<br>
423195 PPC ISA 3.1 support is missing, part 1<br>
423361 Adds io_uring support on arm64/aarch64 (and all other arches)<br>
424012 crash with readv/writev having invalid but not NULL arg2 iovec<br>
424298 amd64: Implement RDSEED<br>
425232 PPC ISA 3.1 support is missing, part 2<br>
425820 Failure to recognize vpcmpeqq as a dependency breaking idiom.<br>
426014 arm64: implement fmadd and fmsub as Iop_MAdd/Sub<br>
426123 PPC ISA 3.1 support is missing, part 3<br>
426144 Fix "condition variable has not been initialized" on Fedora 33.<br>
427400 PPC ISA 3.1 support is missing, part 4<br>
427401 PPC ISA 3.1 support is missing, part 5<br>
427404 PPC ISA 3.1 support is missing, part 6<br>
427870 lmw, lswi and related PowerPC insns aren't allowed on ppc64le<br>
427787 Support new faccessat2 linux syscall (439)<br>
427969 debuginfo section duplicates a section in the main ELF file<br>
428035 drd: Unbreak the musl build<br>
428648 s390_emit_load_mem panics due to 20-bit offset for vector load<br>
428716 cppcheck detects potential leak in VEX/useful/smchash.c<br>
428909 helgrind: need to intercept duplicate libc definitions for Fedora 33<br>
429352 PPC ISA 3.1 support is missing, part 7<br>
429354 PPC ISA 3.1 support is missing, part 8<br>
429692 unhandled ppc64le-linux syscall: 147 (getsid)<br>
429864 s390x: C++ atomic test_and_set yields false-positive memcheck<br>
diagnostics<br>
429952 Errors when building regtest with clang<br>
430354 ppc stxsibx and stxsihx instructions write too much data<br>
430429 valgrind.h doesn't compile on s390x with clang<br>
430485 expr_is_guardable doesn't handle Iex_Qop<br>
431556 Complete arm64 FADDP v8.2 instruction support<br>
432102 Add support for DWARF5 as produced by GCC11<br>
432161 Addition of arm64 v8.2 FADDP, FNEG and FSQRT<br>
432381 drd: Process STACK_REGISTER client requests<br>
432552 [AArch64] invalid error emitted for pre-decremented byte/hword addresses<br>
432672 vg_regtest: test-specific environment variables not reset between tests<br>
432809 VEX should support REX.W + POPF<br>
432861 PPC modsw and modsd give incorrect results for 1 mod 12<br>
432870 gdbserver_tests:nlcontrolc hangs with newest glibc2.33 x86-64<br>
432215 Add debuginfod functionality<br>
433323 Use pkglibexecdir as vglibdir<br>
433500 DRD regtest faulures when libstdc++ and libgcc debuginfo are installed<br>
433629 valgrind/README has type "abd" instead of "and"<br>
433641 Rust std::sys::unix::fs::try_statx Syscall param fstatat(file_name)<br>
433898 arm64: Handle sp, lr, fp as DwReg in CfiExpr<br>
434193 GCC 9+ inlined strcmp causes "Conditional jump or move [..] value" report<br>
n-i-bz helgrind: If hg_cli__realloc fails, return NULL.<br>
n-i-bz arm64 front end: avoid Memcheck false positives relating to CPUID<br>
<br>
(3.17.0.RC1: 13 Mar 2021)<br>
(3.17.0.RC2: 17 Mar 2021)<br>
(3.17.0: 19 Mar 2021)<br>
<br>
<br>
<br>
Release 3.16.1 (22 June 2020)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.16.1 fixes two critical bugs discovered after 3.16.0 was frozen. It also<br>
fixes character encoding problems in the documentation HTML.<br>
<br>
422677 PPC sync instruction L field should only be 2 bits in ISA 3.0<br>
422715 32-bit x86: vex: the `impossible' happened: expr_is_guardable: unhandled expr<br>
<br>
(3.16.1, 22 June 2020, 36d6727e1d768333a536f274491e5879cab2c2f7)<br>
<br>
<br>
<br>
Release 3.16.0 (27 May 2020)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.16.0 is a feature release with many improvements and the usual collection of<br>
bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12. There is also preliminary<br>
support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* It is now possible to dynamically change the value of many command line<br>
options while your program (or its children) are running under Valgrind.<br>
<br>
To see the list of dynamically changeable options, run<br>
"valgrind --help-dyn-options".<br>
<br>
You can change the options from the shell by using vgdb to launch<br>
the monitor command "v.clo <clo option>...".<br>
The same monitor command can be used from a gdb connected<br>
to the valgrind gdbserver.<br>
Your program can also change the dynamically changeable options using<br>
the client request VALGRIND_CLO_CHANGE(option).<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* MIPS: preliminary support for nanoMIPS instruction set has been added.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* DHAT:<br>
<br>
- The implicit memcpy done by each call to realloc now counts towards the<br>
read and write counts of resized heap blocks, making those counts higher<br>
and more accurate.<br>
<br>
* Cachegrind:<br>
<br>
- cg_annotate's --auto and --show-percs options now default to 'yes', because<br>
they are usually wanted.<br>
<br>
* Callgrind:<br>
<br>
- callgrind_annotate's --auto and --show-percs options now default to 'yes',<br>
because they are usually wanted.<br>
<br>
- The command option --collect-systime has been enhanced to specify<br>
the unit used to record the elapsed time spent during system calls.<br>
The command option now accepts the values no|yes|msec|usec|nsec,<br>
where yes is a synonym of msec. When giving the value nsec, the<br>
system cpu time of system calls is also recorded.<br>
<br>
* Memcheck:<br>
<br>
- Several memcheck options are now dynamically changeable.<br>
Use valgrind --help-dyn-options to list them.<br>
<br>
- The release 3.15 introduced a backward incompatible change for<br>
some suppression entries related to preadv and pwritev syscalls.<br>
When reading a suppression entry using the unsupported 3.14 format,<br>
valgrind will now produce a warning to say the suppression entry will not<br>
work, and suggest the needed change.<br>
<br>
- Significantly fewer false positive errors on optimised code generated by<br>
Clang and GCC. In particular, Memcheck now deals better with the<br>
situation where the compiler will transform C-level "A && B" into "B && A"<br>
under certain circumstances (in which the transformation is valid).<br>
Handling of integer equality/non-equality checks on partially defined<br>
values is also improved on some architectures.<br>
<br>
* exp-sgcheck:<br>
<br>
- The exprimental Stack and Global Array Checking tool has been removed.<br>
It only ever worked on x86 and amd64, and even on those it had a<br>
high false positive rate and was slow. An alternative for detecting<br>
stack and global array overruns is using the AddressSanitizer (ASAN)<br>
facility of the GCC and Clang compilers, which require you to rebuild<br>
your code with -fsanitize=address.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* New and modified GDB server monitor features:<br>
<br>
- Option -T tells vgdb to output a timestamp in the vgdb information messages.<br>
<br>
- The gdbserver monitor commands that require an address and an optional<br>
length argument now accepts the alternate 'C like' syntax "address[length]".<br>
For example, the memcheck command "monitor who_points_at 0x12345678 120"<br>
can now also be given as "monitor who_points_at 0x12345678[120]".<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
343099 Linux setns syscall wrapper missing, unhandled syscall: 308<br>
== 368923 WARNING: unhandled arm64-linux syscall: 268 (setns)<br>
== 369031 WARNING: unhandled amd64-linux syscall: 308 (setns)<br>
385386 Assertion failed "szB >= CACHE_ENTRY_SIZE" at m_debuginfo/image.c:517<br>
400162 Patch: Guard against __GLIBC_PREREQ for musl libc<br>
400593 In Coregrind, use statx for some internal syscalls if [f]stat[64] fail<br>
400872 Add nanoMIPS support to Valgrind<br>
403212 drd/tests/trylock hangs on FreeBSD<br>
404406 s390x: z14 miscellaneous instructions not implemented<br>
405201 Incorrect size of struct vki_siginfo on 64-bit Linux architectures<br>
406561 mcinfcallWSRU gdbserver_test fails on ppc64<br>
406824 Unsupported baseline<br>
407218 Add support for the copy_file_range syscall<br>
407307 Intercept stpcpy also in ld.so for arm64<br>
407376 Update Xen support to 4.12 (4.13, actually) and add more coverage<br>
== 390553<br>
407764 drd cond_post_wait gets wrong (?) condition on s390x z13 system<br>
408009 Expose rdrand and f16c even on avx if host cpu supports them<br>
408091 Missing pkey syscalls<br>
408414 Add support for missing for preadv2 and pwritev2 syscalls<br>
409141 Valgrind hangs when SIGKILLed<br>
409206 Support for Linux PPS and PTP ioctls<br>
409367 exit_group() after signal to thread waiting in futex() causes hangs<br>
409429 amd64: recognize 'cmpeq' variants as a dependency breaking idiom<br>
409780 References to non-existent configure.in<br>
410556 Add support for BLKIO{MIN,OPT} and BLKALIGNOFF ioctls<br>
410599 Non-deterministic behaviour of pth_self_kill_15_other test<br>
410757 discrepancy for preadv2/pwritev2 syscalls across different versions<br>
411134 Allow the user to change a set of command line options during execution<br>
411451 amd64->IR of bt/btc/bts/btr with immediate clears zero flag<br>
412344 Problem setting mips flags with specific paths<br>
412408 unhandled arm-linux syscall: 124 - adjtime - on arm-linux<br>
413119 Ioctl wrapper for DRM_IOCTL_I915_GEM_MMAP<br>
413330 avx-1 test fails on AMD EPYC 7401P 24-Core Processor<br>
413603 callgrind_annotate/cg_annotate truncate function names at '#'<br>
414565 Specific use case bug found in SysRes VG_(do_sys_sigprocmask)<br>
415136 ARMv8.1 Compare-and-Swap instructions are not supported<br>
415757 vex x86->IR: 0x66 0xF 0xCE 0x4F (bswapw)<br>
416239 valgrind crashes when handling clock_adjtime<br>
416285 Use prlimit64 in VG_(getrlimit) and VG_(setrlimit)<br>
416286 DRD reports "conflicting load" error on std::mutex::lock()<br>
416301 s390x: "compare and signal" not supported<br>
416387 finit_module and bpf syscalls are unhandled on arm64<br>
416464 Fix false reports for uninitialized memory for PR_CAPBSET_READ/DROP<br>
416667 gcc10 ppc64le impossible constraint in 'asm' in test_isa.<br>
416753 new 32bit time syscalls for 2038+<br>
417075 pwritev(vector[...]) suppression ignored<br>
417075 is not fixed, but incompatible supp entries are detected<br>
and a warning is produced for these.<br>
417187 [MIPS] Conditional branch problem since 'grail' changes<br>
417238 Test memcheck/tests/vbit-test fails on mips64 BE<br>
417266 Make memcheck/tests/linux/sigqueue usable with musl<br>
417281 s390x: /bin/true segfaults with "grail" enabled<br>
417427 commit to fix vki_siginfo_t definition created numerous regression<br>
errors on ppc64<br>
417452 s390_insn_store_emit: dst->tag for HRcVec128<br>
417578 Add suppressions for glibc DTV leaks<br>
417906 clone with CLONE_VFORK and no CLONE_VM fails<br>
418004 Grail code additions break ppc64.<br>
418435 s390x: spurious "Conditional jump or move depends on uninitialised [..]"<br>
418997 s390x: Support Iex_ITE for float and vector types<br>
419503 s390x: Avoid modifying registers returned from isel functions<br>
421321 gcc10 arm64 build needs __getauxval for linking with libgcc<br>
421570 std_mutex fails on Arm v8.1 h/w<br>
434035 vgdb might crash if valgrind is killed<br>
n-i-bz Fix minor one time leaks in dhat.<br>
n-i-bz Add --run-cxx-freeres=no in outer args to avoid inner crashes.<br>
n-i-bz Add support for the Linux io_uring system calls<br>
n-i-bz sys_statx: don't complain if both |filename| and |buf| are NULL.<br>
n-i-bz Fix non-glibc build of test suite with s390x_features<br>
n-i-bz MinGW, include/valgrind.h: Fix detection of 64-bit mode<br>
423195 PPC ISA 3.1 support is missing, part 1<br>
<br>
(3.16.0.RC1: 18 May 2020, git 6052ee66a0cf5234e8e2a2b49a8760226bc13b92)<br>
(3.16.0.RC2: 19 May 2020, git 940ec1ca69a09f7fdae3e800b7359f85c13c4b37)<br>
(3.16.0: 27 May 2020, git bf5e647edb9e96cbd5c57cc944984402eeee296d)<br>
<br>
<br>
<br>
Release 3.15.0 (12 April 2019)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.15.0 is a feature release with many improvements and the usual collection of<br>
bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12. There is also preliminary<br>
support for X86/macOS 10.13 and AMD64/macOS 10.13.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* The XTree Massif output format now makes use of the information obtained<br>
when specifying --read-inline-info=yes.<br>
<br>
* amd64 (x86_64): the RDRAND and F16C insn set extensions are now supported.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* DHAT: <br>
<br>
- DHAT been thoroughly overhauled, improved, and given a GUI. As a result,<br>
it has been promoted from an experimental tool to a regular tool. Run it<br>
with --tool=dhat instead of --tool=exp-dhat.<br>
<br>
- DHAT now prints only minimal data when the program ends, instead writing<br>
the bulk of the profiling data to a file. As a result, the --show-top-n<br>
and --sort-by options have been removed.<br>
<br>
- Profile results can be viewed with the new viewer, dh_view.html. When<br>
a run ends, a short message is printed, explaining how to view the result.<br>
<br>
- See the documentation for more details.<br>
<br>
* Cachegrind:<br>
<br>
- cg_annotate has a new option, --show-percs, which prints percentages next<br>
to all event counts.<br>
<br>
* Callgrind:<br>
<br>
- callgrind_annotate has a new option, --show-percs, which prints percentages<br>
next to all event counts.<br>
<br>
- callgrind_annotate now inserts commas in call counts, and<br>
sort the caller/callee lists in the call tree.<br>
<br>
* Massif:<br>
<br>
- The default value for --read-inline-info is now "yes" on<br>
Linux/Android/Solaris. It is still "no" on other OS.<br>
<br>
* Memcheck:<br>
<br>
- The option --xtree-leak=yes (to output leak result in xtree format)<br>
automatically activates the option --show-leak-kinds=all, as xtree<br>
visualisation tools such as kcachegrind can in any case select what kind<br>
of leak to visualise.<br>
<br>
- There has been further work to avoid false positives. In particular,<br>
integer equality on partially defined inputs (C == and !=) is now handled<br>
better.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* The new option --show-error-list=no|yes displays, at the end of the run, the<br>
list of detected errors and the used suppressions. Prior to this change,<br>
showing this information could only be done by specifying "-v -v", but that<br>
also produced a lot of other possibly-non-useful messages. The option -s is<br>
equivalent to --show-error-list=yes.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
385411 s390x: z13 vector floating-point instructions not implemented<br>
397187 z13 vector register support for vgdb gdbserver<br>
398183 Vex errors with _mm256_shuffle_epi8/vpshufb<br>
398870 Please add support for instruction vcvtps2ph<br>
399287 amd64 front end: Illegal Instruction vcmptrueps<br>
399301 Use inlined frames in Massif XTree output. <br>
399322 Improve callgrind_annotate output<br>
399444 VEX/priv/guest_s390_toIR.c:17407: (style) Mismatching assignment [..]<br>
400164 helgrind test encounters mips x-compiler warnings and assembler error<br>
400490 s390x: VRs allocated as if separate from FPRs<br>
400491 s390x: Operand of LOCH treated as unsigned integer<br>
400975 Compile error: error: '-mips64r2' conflicts with the other architecture<br>
options, which specify a mips64 processor<br>
401112 LLVM 5.0 generates comparison against partially initialized data<br>
401277 More bugs in z13 support<br>
401454 Add a --show-percs option to cg_annotate and callgrind_annotate.<br>
401578 drd: crashes sometimes on fork()<br>
401627 memcheck errors with glibc avx2 optimized wcsncmp<br>
401822 none/tests/ppc64/jm-vmx fails and produces assembler warnings<br>
401827 none/tests/ppc64/test_isa_2_06_part3 failure on ppc64le (xvrsqrtesp)<br>
401828 none/tests/ppc64/test_isa_2_06_part1 failure on ppc64le (fcfids and<br>
fcfidus)<br>
402006 mark helper regs defined in final_tidyup before freeres_wrapper call<br>
402048 WARNING: unhandled ppc64[be|le]-linux syscall: 26 (ptrace)<br>
402123 invalid assembler opcodes for mips32r2<br>
402134 assertion fail in mc_translate.c (noteTmpUsesIn) Iex_VECRET on arm64<br>
402327 Warning: DWARF2 CFI reader: unhandled DW_OP_ opcode 0x13 (DW_OP_drop)<br>
402341 drd/tests/tsan_thread_wrappers_pthread.h:369: suspicious code ?<br>
402351 mips64 libvexmultiarch_test fails on s390x<br>
402369 Overhaul DHAT<br>
402395 coregrind/vgdb-invoker-solaris.c: 2 * poor error checking<br>
402480 Do not use %rsp in clobber list<br>
402481 vbit-test fails on x86 for Iop_CmpEQ64 iselInt64Expr Sar64<br>
402515 Implement new option --show-error-list=no|yes / -s<br>
402519 POWER 3.0 addex instruction incorrectly implemented<br>
402781 Redo the cache used to process indirect branch targets<br>
403123 vex amd64->IR:0xF3 0x48 0xF 0xAE 0xD3 (wrfsbase)<br>
403552 s390x: wrong facility bit checked for vector facility<br>
404054 memcheck powerpc subfe x, x, x initializes x to 0 or -1 based on CA<br>
404638 Add VG_(replaceIndexXA)<br>
404843 s390x: backtrace sometimes ends prematurely<br>
404888 autotools cleanup series<br>
405079 unhandled ppc64le-linux syscall: 131 (quotactl)<br>
405182 Valgrind fails to build with Clang<br>
405205 filter_libc: remove the line holding the futex syscall error entirely<br>
405356 PPC64, xvcvsxdsp, xvcvuxdsp are supposed to write the 32-bit result to<br>
the upper and lower 32-bits of the 64-bit result<br>
405362 PPC64, vmsummbm instruction doesn't handle overflow case correctly<br>
405363 PPC64, xvcvdpsxws, xvcvdpuxws, do not handle NaN arguments correctly.<br>
405365 PPC64, function _get_maxmin_fp_NaN() doesn't handle QNaN, SNaN case<br>
correctly.<br>
405403 s390x disassembler cannot be used on x86<br>
405430 Use gcc -Wimplicit-fallthrough=2 by default if available<br>
405458 MIPS mkFormVEC arguments swapped?<br>
405716 drd: Fix an integer overflow in the stack margin calculation<br>
405722 Support arm64 core dump<br>
405733 PPC64, xvcvdpsp should write 32-bit result to upper and lower 32-bits<br>
of the 64-bit destination field.<br>
405734 PPC64, vrlwnm, vrlwmi, vrldrm, vrldmi do not work properly when me < mb<br>
405782 "VEX temporary storage exhausted" when attempting to debug slic3r-pe<br>
406198 none/tests/ppc64/test_isa_3_0_other test sporadically including CA<br>
bit in output.<br>
406256 PPC64, vector floating point instructions don't handle subnormal<br>
according to VSCR[NJ] bit setting.<br>
406352 cachegrind/callgrind fails ann tests because of missing a.c<br>
406354 dhat is broken on x86 (32bit)<br>
406355 mcsignopass, mcsigpass, mcbreak fail due to difference in gdb output<br>
406357 gdbserver_tests fails because of gdb output change<br>
406360 memcheck/tests/libstdc++.supp needs more supression variants<br>
406422 none/tests/amd64-linux/map_32bits.vgtest fails too easily<br>
406465 arm64 insn selector fails on "t0 = <expr>" where <expr> has type Ity_F16<br>
407340 PPC64, does not support the vlogefp, vexptefp instructions.<br>
n-i-bz add syswrap for PTRACE_GET|SET_THREAD_AREA on amd64.<br>
n-i-bz Fix callgrind_annotate non deterministic order for equal total<br>
n-i-bz callgrind_annotate --threshold=100 does not print all functions.<br>
n-i-bz callgrind_annotate Use of uninitialized value in numeric gt (>)<br>
n-i-bz amd64 (x86_64): RDRAND and F16C insn set extensions are supported<br>
<br>
(3.15.0.RC1: 8 April 2019, git ce94d674de5b99df173aad4c3ee48fc2a92e5d9c)<br>
(3.15.0.RC2: 11 April 2019, git 0c8be9bbede189ec580ec270521811766429595f)<br>
(3.15.0: 14 April 2019, git 270037da8b508954f0f7d703a0bebf5364eec548)<br>
<br>
<br>
<br>
Release 3.14.0 (9 October 2018)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.14.0 is a feature release with many improvements and the usual collection of<br>
bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12. There is also preliminary<br>
support for X86/macOS 10.13, AMD64/macOS 10.13.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* The new option --keep-debuginfo=no|yes (default no) can be used to retain<br>
debug info for unloaded code. This allows saved stack traces (e.g. for<br>
memory leaks) to include file/line info for code that has been dlclose'd (or<br>
similar). See the user manual for more information and known limitations.<br>
<br>
* Ability to specify suppressions based on source file name and line number.<br>
<br>
* Majorly overhauled register allocator. No end-user changes, but the JIT<br>
generates code a bit more quickly now.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Preliminary support for macOS 10.13 has been added.<br>
<br>
* mips: support for MIPS32/MIPS64 Revision 6 has been added.<br>
<br>
* mips: support for MIPS SIMD architecture (MSA) has been added.<br>
<br>
* mips: support for MIPS N32 ABI has been added.<br>
<br>
* s390: partial support for vector instructions (integer and string) has been<br>
added.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Helgrind: Addition of a flag<br>
--delta-stacktrace=no|yes [yes on linux amd64/x86]<br>
which specifies how full history stack traces should be computed.<br>
Setting this to =yes can speed up Helgrind by 25% when using<br>
--history-level=full.<br>
<br>
* Memcheck: reduced false positive rate for optimised code created by Clang 6<br>
/ LLVM 6 on x86, amd64 and arm64. In particular, Memcheck analyses code<br>
blocks more carefully to determine where it can avoid expensive definedness<br>
checks without loss of precision. This is controlled by the flag<br>
--expensive-definedness-checks=no|auto|yes [auto].<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* Valgrind is now buildable with link-time optimisation (LTO). A new<br>
configure option --enable-lto=yes allows building Valgrind with LTO. If the<br>
toolchain supports it, this produces a smaller/faster Valgrind (up to 10%).<br>
Note that if you are doing Valgrind development, --enable-lto=yes massively<br>
slows down the build process.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
79362 Debug info is lost for .so files when they are dlclose'd<br>
208052 strlcpy error when n = 0<br>
255603 exp-sgcheck Assertion '!already_present' failed<br>
338252 building valgrind with -flto (link time optimisation) fails<br>
345763 MIPS N32 ABI support<br>
368913 WARNING: unhandled arm64-linux syscall: 117 (ptrace)<br>
== 388664 unhandled arm64-linux syscall: 117 (ptrace)<br>
372347 Replacement problem of the additional c++14/c++17 new/delete operators<br>
373069 memcheck/tests/leak_cpp_interior fails with GCC 5.1+<br>
376257 helgrind history full speed up using a cached stack<br>
379373 Fix syscall param msg->desc.port.name points to uninitialised byte(s)<br>
on macOS 10.12<br>
379748 Fix missing pselect syscall (OS X 10.11)<br>
379754 Fix missing syscall ulock_wait (OS X 10.12)<br>
380397 s390x: __GI_strcspn() replacemenet needed<br>
381162 possible array overrun in VEX register allocator<br>
381272 ppc64 doesn't compile test_isa_2_06_partx.c without VSX support<br>
381274 powerpc too chatty even with --sigill-diagnostics=no<br>
381289 epoll_pwait can have a NULL sigmask<br>
381553 VEX register allocator v3<br>
381556 arm64: Handle feature registers access on 4.11 Linux kernel or later<br>
381769 Use ucontext_t instead of struct ucontext<br>
381805 arm32 needs ld.so index hardwire for new glibc security fixes<br>
382256 gz compiler flag test doesn't work for gold<br>
382407 vg_perf needs "--terse" command line option<br>
382515 "Assertion 'di->have_dinfo' failed." on wine's dlls/mscoree/tests/[..]<br>
382563 MIPS MSA ASE support<br>
382998 xml-socket doesn't work<br>
383275 massif: m_xarray.c:162 (ensureSpaceXA): Assertion '!xa->arr' failed<br>
383723 Fix missing kevent_qos syscall (macOS 10.11)<br>
== 385604 illegal hardware instruction (OpenCV cv::namedWindow)<br>
384096 Mention AddrCheck at Memcheck's command line option [..]<br>
384230 vex x86->IR: 0x67 0xE8 0xAB 0x68<br>
== 384156 vex x86->IR: 0x67 0xE8 0x6B 0x6A<br>
== 386115 vex x86->IR: 0x67 0xE8 0xD3 0x8B any program<br>
== 388407 vex x86->IR: 0x67 0xE8 0xAB 0x29<br>
== 394903 vex x86->IR: 0x67 0xE8 0x1B 0xDA<br>
384337 performance improvements to VEX register allocator v2 and v3<br>
384526 reduce number of spill insns generated by VEX register allocator v3<br>
384584 Callee saved regs listed first for AMD64, X86, and PPC architectures<br>
384631 Sanitise client args as printed with -v<br>
384633 Add a simple progress-reporting facility<br>
384987 VEX regalloc: allocate caller-save registers for short lived vregs<br>
385055 PPC VEX temporary storage exhausted<br>
385182 PPC64 is missing support for the DSCR<br>
385183 PPC64, Add support for xscmpeqdp, xscmpgtdp, xscmpgedp, xsmincdp<br>
385207 PPC64, generate_store_FPRF() generates too many Iops<br>
385208 PPC64, xxperm instruction exhausts temporary memory<br>
385210 PPC64, vpermr instruction could exhaust temporary memory<br>
385279 unhandled syscall: mach:43 (mach_generate_activity_id)<br>
== 395136 valgrind: m_syswrap/syswrap-main.c:438 (Bool eq_Syscall[..]<br>
== 387045 Valgrind crashing on High Sierra when testing any newly [..]<br>
385334 PPC64, fix vpermr, xxperm, xxpermr mask value.<br>
385408 s390x: z13 vector "support" instructions not implemented<br>
385409 s390x: z13 vector integer instructions not implemented<br>
385410 s390x: z13 vector string instructions not implemented<br>
385412 s390x: new non-vector z13 instructions not implemented<br>
385868 glibc ld.so _dl_runtime_resolve_avx_slow conditional jump warning.<br>
385912 none/tests/rlimit_nofile fails on newer glibc/kernel.<br>
385939 Optionally exit on the first error<br>
386318 valgrind.org/info/tools.html is missing SGCheck<br>
386425 running valgrind + wine on armv7l gives illegal opcode<br>
386397 PPC64, valgrind truncates powerpc timebase to 32-bits.<br>
387410 MIPSr6 support<br>
387664 Memcheck: make expensive-definedness-checks be the default<br>
387712 s390x cgijnl reports Conditional jump depends on uninitialised value<br>
387766 asm shifts cause false positive "Conditional jump or move depends<br>
on uninitialised value"<br>
387773 .gnu_debugaltlink paths resolve relative to .debug file, not symlink<br>
388174 valgrind with Wine quits with "Assertion 'cfsi_fits' failed"<br>
388786 Support bpf syscall in amd64 Linux<br>
388862 Add replacements for wmemchr and wcsnlen on Linux<br>
389065 valgrind meets gcc flag -Wlogical-op<br>
389373 exp-sgcheck the 'impossible' happened as Ist_LoadG is not instrumented<br>
390471 suppression by specification of source-file line number<br>
390723 make xtree dump files world wide readable, similar to log files<br>
391164 constraint bug in tests/ppc64/test_isa_2_07_part1.c for mtfprwa<br>
391861 Massif Assertion 'n_ips >= 1 && n_ips <= VG_(clo_backtrace_size)'<br>
392118 unhandled amd64-linux syscall: 332 (statx)<br>
392449 callgrind not clearing the number of calls properly<br>
393017 Add missing support for xsmaxcdp instruction, bug fixes for xsmincdp,<br>
lxssp, stxssp and stxvl instructions.<br>
393023 callgrind_control risks using the wrong vgdb<br>
393062 build-id ELF phdrs read causes "debuginfo reader: ensure_valid failed"<br>
393099 posix_memalign() invalid write if alignment == 0<br>
393146 failing assert "is_DebugInfo_active(di)"<br>
395709 PPC64 is missing support for the xvnegsp instruction<br>
395682 Accept read-only PT_LOAD segments and .rodata by ld -z separate-code<br>
== 384727<br>
396475 valgrind OS-X build: config.h not found (out-of-tree macOS builds)<br>
395991 arm-linux: wine's unit tests enter a signal delivery loop [..]<br>
396839 s390x: Trap instructions not implemented<br>
396887 arch_prctl should return EINVAL on unknown option<br>
== 397286 crash before launching binary (Unsupported arch_prctl option)<br>
== 397393 valgrind: the 'impossible' happened: (Archlinux)<br>
== 397521 valgrind: the 'impossible' happened: Unsupported [..]<br>
396906 compile tests failure on mips32-linux: broken inline asm in tests on<br>
mips32-linux<br>
397012 glibc ld.so uses arch_prctl on i386<br>
397089 amd64: Incorrect decoding of three-register vmovss/vmovsd opcode 11h<br>
397354 utimensat should ignore timespec tv_sec if tv_nsec is UTIME_NOW/OMIT<br>
397424 glibc 2.27 and gdb_server tests<br>
398028 Assertion `cfsi_fits` failing in simple C program<br>
398066 s390x: cgijl dep1, 0 reports false unitialised values warning<br>
<br>
n-i-bz Fix missing workq_ops operations (macOS)<br>
n-i-bz fix bug in strspn replacement<br>
n-i-bz Add support for the Linux BLKFLSBUF ioctl<br>
n-i-bz Add support for the Linux BLKREPORTZONE and BLKRESETZONE ioctls<br>
n-i-bz Fix possible stack trashing by semctl syscall wrapping<br>
n-i-bz Add support for the Linux membarrier() system call<br>
n-i-bz x86 front end: recognise and handle UD2 correctly<br>
n-i-bz Signal delivery for x86-linux: ensure that the stack pointer is<br>
correctly aligned before entering the handler.<br>
<br>
(3.14.0.RC1: 30 September 2018, git c2aeea2d28acb0639bcc8cc1e4ab115067db1eae)<br>
(3.14.0.RC2: 3 October 2018, git 3e214c4858a6fdd5697e767543a0c19e30505582)<br>
(3.14.0: 9 October 2018, git 353a3587bb0e2757411f9138f5e936728ed6cc4f)<br>
<br>
<br>
<br>
Release 3.13.0 (15 June 2017)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.13.0 is a feature release with many improvements and the usual collection of<br>
bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,<br>
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12.<br>
<br>
* ==================== CORE CHANGES ===================<br>
<br>
* The translation cache size has been increased to keep up with the demands of<br>
large applications. The maximum number of sectors has increased from 24 to<br>
48. The default number of sectors has increased from 16 to 32 on all<br>
targets except Android, where the increase is from 6 to 12.<br>
<br>
* The amount of memory that Valgrind can use has been increased from 64GB to<br>
128GB. In particular this means your application can allocate up to about<br>
60GB when running on Memcheck.<br>
<br>
* Valgrind's default load address has been changed from 0x3800'0000 to<br>
0x5800'0000, so as to make it possible to load larger executables. This<br>
should make it possible to load executables of size at least 1200MB.<br>
<br>
* A massive spaceleak caused by reading compressed debuginfo files has been<br>
fixed. Valgrind should now be entirely usable with gcc-7.0 "-gz" created<br>
debuginfo.<br>
<br>
* The C++ demangler has been updated.<br>
<br>
* Support for demangling Rust symbols has been added.<br>
<br>
* A new representation of stack traces, the "XTree", has been added. An XTree<br>
is a tree of stacktraces with data associated with the stacktraces. This is<br>
used by various tools (Memcheck, Helgrind, Massif) to report on the heap<br>
consumption of your program. Reporting is controlled by the new options<br>
--xtree-memory=none|allocs|full and --xtree-memory-file=<file>.<br>
<br>
A report can also be produced on demand using the gdbserver monitor command<br>
'xtmemory [<filename>]>'. The XTree can be output in 2 formats: 'callgrind<br>
format' and 'massif format. The existing visualisers for these formats (e.g.<br>
callgrind_annotate, KCachegrind, ms_print) can be used to visualise and<br>
analyse these reports.<br>
<br>
Memcheck can also produce XTree leak reports using the Callgrind file<br>
format. For more details, see the user manual.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* ppc64: support for ISA 3.0B and various fixes for existing 3.0 support<br>
<br>
* amd64: fixes for JIT failure problems on long AVX2 code blocks<br>
<br>
* amd64 and x86: support for CET prefixes has been added<br>
<br>
* arm32: a few missing ARMv8 instructions have been implemented<br>
<br>
* arm64, mips64, mips32: an alternative implementation of Load-Linked and<br>
Store-Conditional instructions has been added. This is to deal with<br>
processor implementations that implement the LL/SC specifications strictly<br>
and as a result cause Valgrind to hang in certain situations. The<br>
alternative implementation is automatically enabled at startup, as required.<br>
You can use the option --sim-hints=fallback-llsc to force-enable it if you<br>
want.<br>
<br>
* Support for OSX 10.12 has been improved.<br>
<br>
* On Linux, clone handling has been improved to honour CLONE_VFORK that<br>
involves a child stack. Note however that CLONE_VFORK | CLONE_VM is handled<br>
like CLONE_VFORK (by removing CLONE_VM), so applications that depend on<br>
CLONE_VM exact semantics will (still) not work.<br>
<br>
* The TileGX/Linux port has been removed because it appears to be both unused<br>
and unsupported.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck:<br>
<br>
- Memcheck should give fewer false positives when running optimised<br>
Clang/LLVM generated code.<br>
<br>
- Support for --xtree-memory and 'xtmemory [<filename>]>'.<br>
<br>
- New command line options --xtree-leak=no|yes and --xtree-leak-file=<file><br>
to produce the end of execution leak report in a xtree callgrind format<br>
file.<br>
<br>
- New option 'xtleak' in the memcheck leak_check monitor command, to produce<br>
the leak report in an xtree file.<br>
<br>
* Massif:<br>
<br>
- Support for --xtree-memory and 'xtmemory [<filename>]>'.<br>
<br>
- For some workloads (typically, for big applications), Massif memory<br>
consumption and CPU consumption has decreased significantly.<br>
<br>
* Helgrind:<br>
<br>
- Support for --xtree-memory and 'xtmemory [<filename>]>'.<br>
<br>
- addition of client request VALGRIND_HG_GNAT_DEPENDENT_MASTER_JOIN, useful<br>
for Ada gnat compiled applications.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* For Valgrind developers: in an outer/inner setup, the outer Valgrind will<br>
append the inner guest stacktrace to the inner host stacktrace. This helps<br>
to investigate the errors reported by the outer, when they are caused by the<br>
inner guest program (such as an inner regtest). See README_DEVELOPERS for<br>
more info.<br>
<br>
* To allow fast detection of callgrind files by desktop environments and file<br>
managers, the format was extended to have an optional first line that<br>
uniquely identifies the format ("# callgrind format"). Callgrind creates<br>
this line now, as does the new xtree functionality.<br>
<br>
* File name template arguments (such as --log-file, --xtree-memory-file, ...)<br>
have a new %n format letter that is replaced by a sequence number.<br>
<br>
* "--version -v" now shows the SVN revision numbers from which Valgrind was<br>
built.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
162848 --log-file output isn't split when a program forks<br>
340777 Illegal instruction on mips (ar71xx)<br>
341481 MIPS64: Iop_CmpNE32 triggers false warning on MIPS64 platforms<br>
342040 Valgrind mishandles clone with CLONE_VFORK | CLONE_VM that clones<br>
to a different stack.<br>
344139 x86 stack-seg overrides, needed by the Wine people<br>
344524 store conditional of guest applications always fail - observed on<br>
Octeon3(MIPS)<br>
348616 Wine/valgrind: noted but unhandled ioctl 0x5390 [..] (DVD_READ_STRUCT)<br>
352395 Please provide SVN revision info in --version -v<br>
352767 Wine/valgrind: noted but unhandled ioctl 0x5307 [..] (CDROMSTOP)<br>
356374 Assertion 'DRD_(g_threadinfo)[tid].pt_threadid !=<br>
INVALID_POSIX_THREADID' failed<br>
358213 helgrind/drd bar_bad testcase hangs or crashes with new glibc pthread<br>
barrier implementation<br>
358697 valgrind.h: Some code remains even when defining NVALGRIND<br>
359202 Add musl libc configure/compile<br>
360415 amd64 instructions ADCX and ADOX are not implemented in VEX<br>
== 372828 (vex amd64->IR: 0x66 0xF 0x3A 0x62 0x4A 0x10)<br>
360429 unhandled ioctl 0x530d with no size/direction hints (CDROMREADMODE1)<br>
362223 assertion failed when .valgrindrc is a directory instead of a file<br>
367543 bt/btc/btr/bts x86/x86_64 instructions are poorly-handled wrt flags<br>
367942 Segfault vgPlain_do_sys_sigaction (m_signals.c:1138)<br>
368507 can't malloc chunks larger than about 34GB<br>
368529 Android arm target link error, missing atexit and pthread_atfork<br>
368863 WARNING: unhandled arm64-linux syscall: 100 (get_robust_list)<br>
368865 WARNING: unhandled arm64-linux syscall: 272 (kcmp)<br>
368868 disInstr(arm64): unhandled instruction 0xD53BE000 = cntfrq_el0 (ARMv8)<br>
368917 WARNING: unhandled arm64-linux syscall: 218 (request_key)<br>
368918 WARNING: unhandled arm64-linux syscall: 127 (sched_rr_get_interval)<br>
368922 WARNING: unhandled arm64-linux syscall: 161 (sethostname)<br>
368924 WARNING: unhandled arm64-linux syscall: 84 (sync_file_range)<br>
368925 WARNING: unhandled arm64-linux syscall: 130 (tkill)<br>
368926 WARNING: unhandled arm64-linux syscall: 97 (unshare)<br>
369459 valgrind on arm64 violates the ARMv8 spec (ldxr/stxr)<br>
370028 Reduce the number of compiler warnings on MIPS platforms<br>
370635 arm64 missing syscall getcpu<br>
371225 Fix order of timer_{gettime,getoverrun,settime} syscalls on arm64<br>
371227 Clean AArch64 syscall table<br>
371412 Rename wrap_sys_shmat to sys_shmat like other wrappers<br>
371471 Valgrind complains about non legit memory leaks on placement new (C++)<br>
371491 handleAddrOverrides() is [incorrect] when ASO prefix is used<br>
371503 disInstr(arm64): unhandled instruction 0xF89F0000<br>
371869 support '%' in symbol Z-encoding<br>
371916 execution tree xtree concept<br>
372120 c++ demangler demangles symbols which are not c++<br>
372185 Support of valgrind on ARMv8 with 32 bit executable<br>
372188 vex amd64->IR: 0x66 0xF 0x3A 0x62 0x4A 0x10 0x10 0x48 (PCMPxSTRx $0x10)<br>
372195 Power PC, xxsel instruction is not always recognized.<br>
372504 Hanging on exit_group<br>
372600 process loops forever when fatal signals are arriving quickly<br>
372794 LibVEX (arm32 front end): 'Assertion szBlg2 <= 3' failed<br>
373046 Stacks registered by core are never deregistered<br>
373069 memcheck/tests/leak_cpp_interior fails with GCC 5.1+<br>
373086 Implement additional Xen hypercalls<br>
373192 Calling posix_spawn in glibc 2.24 completely broken<br>
373488 Support for fanotify API on ARM64 architecture<br>
== 368864 WARNING: unhandled arm64-linux syscall: 262 (fanotify_init)<br>
373555 Rename BBPTR to GSPTR as it denotes guest state pointer only<br>
373938 const IRExpr arguments for matchIRExpr()<br>
374719 some spelling fixes<br>
374963 increase valgrind's load address to prevent mmap failure<br>
375514 valgrind_get_tls_addr() does not work in case of static TLS<br>
375772 +1 error in get_elf_symbol_info() when computing value of 'hi' address<br>
for ML_(find_rx_mapping)()<br>
375806 Test helgrind/tests/tc22_exit_w_lock fails with glibc 2.24<br>
375839 Temporary storage exhausted, with long sequence of vfmadd231ps insns<br>
== 377159 "vex: the `impossible' happened" still present<br>
== 375150 Assertion 'tres.status == VexTransOK' failed<br>
== 378068 valgrind crashes on AVX2 function in FFmpeg<br>
376142 Segfaults on MIPS Cavium Octeon boards<br>
376279 disInstr(arm64): unhandled instruction 0xD50320FF<br>
376455 Solaris: unhandled syscall lgrpsys(180)<br>
376518 Solaris: unhandled fast trap getlgrp(6)<br>
376611 ppc64 and arm64 don't know about prlimit64 syscall<br>
376729 PPC64, remove R2 from the clobber list<br>
== 371668<br>
376956 syswrap of SNDDRV and DRM_IOCTL_VERSION causing some addresses<br>
to be wrongly marked as addressable<br>
377066 Some Valgrind unit tests fail to compile on Ubuntu 16.10 with<br>
PIE enabled by default<br>
377376 memcheck/tests/linux/getregset fails with glibc2.24<br>
377427 PPC64, lxv instruction failing on odd destination register <br>
377478 PPC64: ISA 3.0 setup fixes<br>
377698 Missing memory check for futex() uaddr arg for FUTEX_WAKE<br>
and FUTEX_WAKE_BITSET, check only 4 args for FUTEX_WAKE_BITSET,<br>
and 2 args for FUTEX_TRYLOCK_PI<br>
377717 Fix massive space leak when reading compressed debuginfo sections<br>
377891 Update Xen 4.6 domctl wrappers<br>
377930 fcntl syscall wrapper is missing flock structure check<br>
378524 libvexmultiarch_test regression on s390x and ppc64<br>
378535 Valgrind reports INTERNAL ERROR in execve syscall wrapper<br>
378673 Update libiberty demangler<br>
378931 Add ISA 3.0B additional isnstructions, add OV32, CA32 setting support<br>
379039 syscall wrapper for prctl(PR_SET_NAME) must not check more than 16 bytes<br>
379094 Valgrind reports INTERNAL ERROR in rt_sigsuspend syscall wrapper<br>
379371 UNKNOWN task message [id 3444, to mach_task_self(), reply 0x603]<br>
(task_register_dyld_image_infos)<br>
379372 UNKNOWN task message [id 3447, to mach_task_self(), reply 0x603]<br>
(task_register_dyld_shared_cache_image_info)<br>
379390 unhandled syscall: mach:70 (host_create_mach_voucher_trap)<br>
379473 MIPS: add support for rdhwr cycle counter register<br>
379504 remove TileGX/Linux port<br>
379525 Support more x86 nop opcodes<br>
379838 disAMode(x86): not an addr!<br>
379703 PC ISA 3.0 fixes: stxvx, stxv, xscmpexpdp instructions<br>
379890 arm: unhandled instruction: 0xEBAD 0x1B05 (sub.w fp, sp, r5, lsl #4)<br>
379895 clock_gettime does not execute POST syscall wrapper<br>
379925 PPC64, mtffs does not set the FPCC and C bits in the FPSCR correctly<br>
379966 WARNING: unhandled amd64-linux syscall: 313 (finit_module)<br>
380200 xtree generated callgrind files refer to files without directory name<br>
380202 Assertion failure for cache line size (cls == 64) on aarch64.<br>
380397 s390x: __GI_strcspn() replacement needed<br>
n-i-bz Fix pub_tool_basics.h build issue with g++ 4.4.7.<br>
<br>
(3.13.0.RC1: 2 June 2017, vex r3386, valgrind r16434)<br>
(3.13.0.RC2: 9 June 2017, vex r3389, valgrind r16443)<br>
(3.13.0: 14 June 2017, vex r3396, valgrind r16446)<br>
<br>
<br>
<br>
Release 3.12.0 (20 October 2016)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.12.0 is a feature release with many improvements and the usual<br>
collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,<br>
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,<br>
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,<br>
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX<br>
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for<br>
X86/MacOSX 10.11/12, AMD64/MacOSX 10.11/12 and TILEGX/Linux.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* POWER: Support for ISA 3.0 has been added<br>
<br>
* mips: support for O32 FPXX ABI has been added.<br>
* mips: improved recognition of different processors<br>
* mips: determination of page size now done at run time<br>
<br>
* amd64: Partial support for AMD FMA4 instructions.<br>
<br>
* arm, arm64: Support for v8 crypto and CRC instructions.<br>
<br>
* Improvements and robustification of the Solaris port.<br>
<br>
* Preliminary support for MacOS 10.12 (Sierra) has been added.<br>
<br>
Whilst 3.12.0 continues to support the 32-bit x86 instruction set, we<br>
would prefer users to migrate to 64-bit x86 (a.k.a amd64 or x86_64)<br>
where possible. Valgrind's support for 32-bit x86 has stagnated in<br>
recent years and has fallen far behind that for 64-bit x86<br>
instructions. By contrast 64-bit x86 is well supported, up to and<br>
including AVX2.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck:<br>
<br>
- Added meta mempool support for describing a custom allocator which:<br>
- Auto-frees all chunks assuming that destroying a pool destroys all<br>
objects in the pool<br>
- Uses itself to allocate other memory blocks<br>
<br>
- New flag --ignore-range-below-sp to ignore memory accesses below<br>
the stack pointer, if you really have to. The related flag<br>
--workaround-gcc296-bugs=yes is now deprecated. Use<br>
--ignore-range-below-sp=1024-1 as a replacement.<br>
<br>
* DRD:<br>
<br>
- Improved thread startup time significantly on non-Linux platforms.<br>
<br>
* DHAT<br>
<br>
- Added collection of the metric "tot-blocks-allocd"<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* Replacement/wrapping of malloc/new related functions is now done not just<br>
for system libraries by default, but for any globally defined malloc/new<br>
related function (both in shared libraries and statically linked alternative<br>
malloc implementations). The dynamic (runtime) linker is excluded, though.<br>
To only intercept malloc/new related functions in<br>
system libraries use --soname-synonyms=somalloc=nouserintercepts (where<br>
"nouserintercepts" can be any non-existing library name).<br>
This new functionality is not implemented for MacOS X.<br>
<br>
* The maximum number of callers in a suppression entry is now equal to<br>
the maximum size for --num-callers (500).<br>
Note that --gen-suppressions=yes|all similarly generates suppressions<br>
containing up to --num-callers frames.<br>
<br>
* New and modified GDB server monitor features:<br>
<br>
- Valgrind's gdbserver now accepts the command 'catch syscall'.<br>
Note that you must have GDB >= 7.11 to use 'catch syscall' with<br>
gdbserver.<br>
<br>
* New option --run-cxx-freeres=<yes|no> can be used to change whether<br>
__gnu_cxx::__freeres() cleanup function is called or not. Default is<br>
'yes'.<br>
<br>
* Valgrind is able to read compressed debuginfo sections in two formats:<br>
- zlib ELF gABI format with SHF_COMPRESSED flag (gcc option -gz=zlib)<br>
- zlib GNU format with .zdebug sections (gcc option -gz=zlib-gnu)<br>
<br>
* Modest JIT-cost improvements: the cost of instrumenting code blocks<br>
for the most common use case (x86_64-linux, Memcheck) has been<br>
reduced by 10%-15%.<br>
<br>
* Improved performance for programs that do a lot of discarding of<br>
instruction address ranges of 8KB or less.<br>
<br>
* The C++ symbol demangler has been updated.<br>
<br>
* More robustness against invalid syscall parameters on Linux.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
191069 Exiting due to signal not reported in XML output<br>
199468 Suppressions: stack size limited to 25<br>
while --num-callers allows more frames<br>
212352 vex amd64 unhandled opc_aux = 0x 2, first_opcode == 0xDC (FCOM)<br>
278744 cvtps2pd with redundant RexW<br>
303877 valgrind doesn't support compressed debuginfo sections.<br>
345307 Warning about "still reachable" memory when using libstdc++ from gcc 5<br>
348345 Assertion fails for negative lineno<br>
348924 MIPS: Load doubles through memory so the code compiles with the FPXX ABI<br>
351282 V 3.10.1 MIPS softfloat build broken with GCC 4.9.3 / binutils 2.25.1<br>
351692 Dumps created by valgrind are not readable by gdb (mips32 specific)<br>
351804 Crash on generating suppressions for "printf" call on OS X 10.10<br>
352197 mips: mmap2() not wrapped correctly for page size > 4096<br>
353083 arm64 doesn't implement various xattr system calls<br>
353084 arm64 doesn't support sigpending system call<br>
353137 www: update info for Supported Platforms<br>
353138 www: update "The Valgrind Developers" page<br>
353370 don't advertise RDRAND in cpuid for Core-i7-4910-like avx2 machine<br>
== 365325<br>
== 357873<br>
353384 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x62 (pcmpXstrX $0x62)<br>
353398 WARNING: unhandled amd64-solaris syscall: 207<br>
353660 XML in auxwhat tag not escaping reserved symbols properly<br>
353680 s390x: Crash with certain glibc versions due to non-implemented TBEGIN<br>
353727 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x72 (pcmpXstrX $0x72)<br>
353802 ELF debug info reader confused with multiple .rodata sections<br>
353891 Assert 'bad_scanned_addr < VG_ROUNDDN(start+len, sizeof(Addr))' failed<br>
353917 unhandled amd64-solaris syscall fchdir(120)<br>
353920 unhandled amd64-solaris syscall: 170<br>
354274 arm: unhandled instruction: 0xEBAD 0x0AC1 (sub.w sl, sp, r1, lsl #3)<br>
354392 unhandled amd64-solaris syscall: 171<br>
354797 Vbit test does not include Iops for Power 8 instruction support<br>
354883 tst->os_state.pthread - magic_delta assertion failure on OSX 10.11<br>
== 361351<br>
== 362920<br>
== 366222<br>
354933 Fix documentation of --kernel-variant=android-no-hw-tls option<br>
355188 valgrind should intercept all malloc related global functions<br>
355454 do not intercept malloc related symbols from the runtime linker<br>
355455 stderr.exp of test cases wrapmalloc and wrapmallocstatic overconstrained<br>
356044 Dwarf line info reader misinterprets is_stmt register<br>
356112 mips: replace addi with addiu<br>
356393 valgrind (vex) crashes because isZeroU happened<br>
== 363497<br>
== 364497<br>
356676 arm64-linux: unhandled syscalls 125, 126 (sched_get_priority_max/min)<br>
356678 arm64-linux: unhandled syscall 232 (mincore)<br>
356817 valgrind.h triggers compiler errors on MSVC when defining NVALGRIND<br>
356823 Unsupported ARM instruction: stlex<br>
357059 x86/amd64: SSE cvtpi2ps with memory source does transition to MMX state<br>
357338 Unhandled instruction for SHA instructions libcrypto Boring SSL<br>
357673 crash if I try to run valgrind with a binary link with libcurl<br>
357833 Setting RLIMIT_DATA to zero breaks with linux 4.5+<br>
357871 pthread_spin_destroy not properly wrapped<br>
357887 Calls to VG_(fclose) do not close the file descriptor<br>
357932 amd64->IR: accept redundant REX prefixes for {minsd,maxsd} m128, xmm.<br>
358030 support direct socket calls on x86 32bit (new in linux 4.3)<br>
358478 drd/tests/std_thread.cpp doesn't build with GCC6<br>
359133 Assertion 'eltSzB <= ddpa->poolSzB' failed<br>
359181 Buffer Overflow during Demangling<br>
359201 futex syscall "skips" argument 5 if op is FUTEX_WAIT_BITSET<br>
359289 s390x: popcnt (B9E1) not implemented<br>
359472 The Power PC vsubuqm instruction doesn't always give the correct result<br>
359503 Add missing syscalls for aarch64 (arm64)<br>
359645 "You need libc6-dbg" help message could be more helpful<br>
359703 s390: wire up separate socketcalls system calls<br>
359724 getsockname might crash - deref_UInt should call safe_to_deref<br>
359733 amd64 implement ld.so strchr/index override like x86<br>
359767 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 1/5<br>
359829 Power PC test suite none/tests/ppc64/test_isa_2_07.c uses<br>
uninitialized data<br>
359838 arm64: Unhandled instruction 0xD5033F5F (clrex)<br>
359871 Incorrect mask handling in ppoll<br>
359952 Unrecognised PCMPESTRM variants (0x70, 0x19)<br>
360008 Contents of Power vr registers contents is not printed correctly when<br>
the --vgdb-shadow-registers=yes option is used<br>
360035 POWER PC instruction bcdadd and bcdsubtract generate result with<br>
non-zero shadow bits<br>
360378 arm64: Unhandled instruction 0x5E280844 (sha1h s4, s2)<br>
360425 arm64 unsupported instruction ldpsw<br>
== 364435<br>
360519 none/tests/arm64/memory.vgtest might fail with newer gcc<br>
360571 Error about the Android Runtime reading below the stack pointer on ARM<br>
360574 Wrong parameter type for an ashmem ioctl() call on Android and ARM64<br>
360749 kludge for multiple .rodata sections on Solaris no longer needed<br>
360752 raise the number of reserved fds in m_main.c from 10 to 12<br>
361207 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 2/5<br>
361226 s390x: risbgn (EC59) not implemented<br>
361253 [s390x] ex_clone.c:42: undefined reference to `pthread_create'<br>
361354 ppc64[le]: wire up separate socketcalls system calls<br>
361615 Inconsistent termination for multithreaded process terminated by signal<br>
361926 Unhandled Solaris syscall: sysfs(84)<br>
362009 V dumps core on unimplemented functionality before threads are created<br>
362329 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 3/5<br>
362894 missing (broken) support for wbit field on mtfsfi instruction (ppc64)<br>
362935 [AsusWRT] Assertion 'sizeof(TTEntryC) <= 88' failed<br>
362953 Request for an update to the Valgrind Developers page<br>
363680 add renameat2() support<br>
363705 arm64 missing syscall name_to_handle_at and open_by_handle_at<br>
363714 ppc64 missing syscalls sync, waitid and name_to/open_by_handle_at<br>
363858 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 4/5<br>
364058 clarify in manual limitations of array overruns detections<br>
364413 pselect sycallwrapper mishandles NULL sigmask<br>
364728 Power PC, missing support for several HW registers in<br>
get_otrack_shadow_offset_wrk()<br>
364948 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 5/5<br>
365273 Invalid write to stack location reported after signal handler runs<br>
365912 ppc64BE segfault during jm-insns test (RELRO)<br>
366079 FPXX Support for MIPS32 Valgrind<br>
366138 Fix configure errors out when using Xcode 8 (clang 8.0.0)<br>
366344 Multiple unhandled instruction for Aarch64<br>
(0x0EE0E020, 0x1AC15800, 0x4E284801, 0x5E040023, 0x5E056060)<br>
367995 Integration of memcheck with custom memory allocator<br>
368120 x86_linux asm _start functions do not keep 16-byte aligned stack pointer<br>
368412 False positive result for altivec capability check<br>
368416 Add tc06_two_races_xml.exp output for ppc64<br>
368419 Perf Events ioctls not implemented<br>
368461 mmapunmap test fails on ppc64<br>
368823 run_a_thread_NORETURN assembly code typo for VGP_arm64_linux target<br>
369000 AMD64 fma4 instructions unsupported.<br>
369169 ppc64 fails jm_int_isa_2_07 test<br>
369175 jm_vec_isa_2_07 test crashes on ppc64<br>
369209 valgrind loops and eats up all memory if cwd doesn't exist.<br>
369356 pre_mem_read_sockaddr syscall wrapper can crash with bad sockaddr<br>
369359 msghdr_foreachfield can crash when handling bad iovec<br>
369360 Bad sigprocmask old or new sets can crash valgrind<br>
369361 vmsplice syscall wrapper crashes on bad iovec<br>
369362 Bad sigaction arguments crash valgrind<br>
369383 x86 sys_modify_ldt wrapper crashes on bad ptr<br>
369402 Bad set/get_thread_area pointer crashes valgrind<br>
369441 bad lvec argument crashes process_vm_readv/writev syscall wrappers<br>
369446 valgrind crashes on unknown fcntl command<br>
369439 S390x: Unhandled insns RISBLG/RISBHG and LDE/LDER <br>
369468 Remove quadratic metapool algorithm using VG_(HT_remove_at_Iter)<br>
370265 ISA 3.0 HW cap stuff needs updating<br>
371128 BCD add and subtract instructions on Power BE in 32-bit mode do not work<br>
372195 Power PC, xxsel instruction is not always recognized<br>
<br>
n-i-bz Fix incorrect (or infinite loop) unwind on RHEL7 x86 and amd64<br>
n-i-bz massif --pages-as-heap=yes does not report peak caused by mmap+munmap<br>
n-i-bz false positive leaks due to aspacemgr merging heap & non heap segments<br>
n-i-bz Fix ppoll_alarm exclusion on OS X<br>
n-i-bz Document brk segment limitation, reference manual in limit reached msg.<br>
n-i-bz Fix clobber list in none/tests/amd64/xacq_xrel.c [valgrind r15737]<br>
n-i-bz Bump allowed shift value for "add.w reg, sp, reg, lsl #N" [vex r3206]<br>
n-i-bz amd64: memcheck false positive with shr %edx<br>
n-i-bz arm3: Allow early writeback of SP base register in "strd rD, [sp, #-16]"<br>
n-i-bz ppc: Fix two cases of PPCAvFpOp vs PPCFpOp enum confusion<br>
n-i-bz arm: Fix incorrect register-number constraint check for LDAEX{,B,H,D}<br>
n-i-bz DHAT: added collection of the metric "tot-blocks-allocd" <br>
<br>
(3.12.0.RC1: 20 October 2016, vex r3282, valgrind r16094)<br>
(3.12.0.RC2: 20 October 2016, vex r3282, valgrind r16096)<br>
(3.12.0: 21 October 2016, vex r3282, valgrind r16098)<br>
<br>
<br>
<br>
Release 3.11.0 (22 September 2015)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.11.0 is a feature release with many improvements and the usual<br>
collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,<br>
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,<br>
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,<br>
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX<br>
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for<br>
X86/MacOSX 10.11, AMD64/MacOSX 10.11 and TILEGX/Linux.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Support for Solaris/x86 and Solaris/amd64 has been added.<br>
<br>
* Preliminary support for Mac OS X 10.11 (El Capitan) has been added.<br>
<br>
* Preliminary support for the Tilera TileGX architecture has been added.<br>
<br>
* s390x: It is now required for the host to have the "long displacement"<br>
facility. The oldest supported machine model is z990.<br>
<br>
* x86: on an SSE2 only host, Valgrind in 32 bit mode now claims to be a<br>
Pentium 4. 3.10.1 wrongly claimed to be a Core 2, which is SSSE3.<br>
<br>
* The JIT's register allocator is significantly faster, making the JIT<br>
as a whole somewhat faster, so JIT-intensive activities, for example<br>
program startup, are modestly faster, around 5%.<br>
<br>
* There have been changes to the default settings of several command<br>
line flags, as detailed below.<br>
<br>
* Intel AVX2 support is more complete (64 bit targets only). On AVX2<br>
capable hosts, the simulated CPUID will now indicate AVX2 support.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck:<br>
<br>
- The default value for --leak-check-heuristics has been changed from<br>
"none" to "all". This helps to reduce the number of possibly<br>
lost blocks, in particular for C++ applications.<br>
<br>
- The default value for --keep-stacktraces has been changed from<br>
"malloc-then-free" to "malloc-and-free". This has a small cost in<br>
memory (one word per malloc-ed block) but allows Memcheck to show the<br>
3 stacktraces of a dangling reference: where the block was allocated,<br>
where it was freed, and where it is acccessed after being freed.<br>
<br>
- The default value for --partial-loads-ok has been changed from "no" to <br>
"yes", so as to avoid false positive errors resulting from some kinds<br>
of vectorised loops.<br>
<br>
- A new monitor command 'xb <addr> <len>' shows the validity bits of<br>
<len> bytes at <addr>. The monitor command 'xb' is easier to use<br>
than get_vbits when you need to associate byte data value with<br>
their corresponding validity bits.<br>
<br>
- The 'block_list' monitor command has been enhanced:<br>
o it can print a range of loss records<br>
o it now accepts an optional argument 'limited <max_blocks>'<br>
to control the number of blocks printed.<br>
o if a block has been found using a heuristic, then<br>
'block_list' now shows the heuristic after the block size.<br>
o the loss records/blocks to print can be limited to the blocks<br>
found via specified heuristics.<br>
<br>
- The C helper functions used to instrument loads on<br>
x86-{linux,solaris} and arm-linux (both 32-bit only) have been<br>
replaced by handwritten assembly sequences. This gives speedups<br>
in the region of 0% to 7% for those targets only.<br>
<br>
- A new command line option, --expensive-definedness-checks=yes|no,<br>
has been added. This is useful for avoiding occasional invalid<br>
uninitialised-value errors in optimised code. Watch out for<br>
runtime degradation, as this can be up to 25%. As always, though,<br>
the slowdown is highly application specific. The default setting<br>
is "no".<br>
<br>
* Massif:<br>
<br>
- A new monitor command 'all_snapshots <filename>' dumps all<br>
snapshots taken so far.<br>
<br>
* Helgrind:<br>
<br>
- Significant memory reduction and moderate speedups for<br>
--history-level=full for applications accessing a lot of memory<br>
with many different stacktraces.<br>
<br>
- The default value for --conflict-cache-size=N has been doubled to<br>
2000000. Users that were not using the default value should<br>
preferably also double the value they give.<br>
<br>
The default was changed due to the changes in the "full history"<br>
implementation. Doubling the value gives on average a slightly more<br>
complete history and uses similar memory (or significantly less memory<br>
in the worst case) than the previous implementation.<br>
<br>
- The Helgrind monitor command 'info locks' now accepts an optional<br>
argument 'lock_addr', which shows information about the lock at the<br>
given address only.<br>
<br>
- When using --history-level=full, the new Helgrind monitor command<br>
'accesshistory <addr> [<len>]' will show the recorded accesses for<br>
<len> (or 1) bytes at <addr>.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* The default value for the --smc-check option has been changed from<br>
"stack" to "all-non-file" on targets that provide automatic D-I<br>
cache coherence (x86, amd64 and s390x). The result is to provide,<br>
by default, transparent support for JIT generated and self-modifying<br>
code on all targets.<br>
<br>
* Mac OS X only: the default value for the --dsymutil option has been<br>
changed from "no" to "yes", since any serious usage on Mac OS X<br>
always required it to be "yes".<br>
<br>
* The command line options --db-attach and --db-command have been removed.<br>
They were deprecated in 3.10.0.<br>
<br>
* When a process dies due to a signal, Valgrind now shows the signal<br>
and the stacktrace at default verbosity (i.e. verbosity 1).<br>
<br>
* The address description logic used by Memcheck and Helgrind now<br>
describes addresses in anonymous segments, file mmap-ed segments,<br>
shared memory segments and the brk data segment.<br>
<br>
* The new option --error-markers=<begin>,<end> can be used to mark the<br>
begin/end of errors in textual output mode, to facilitate<br>
searching/extracting errors in output files that mix valgrind errors<br>
with program output.<br>
<br>
* The new option --max-threads=<number> can be used to change the number<br>
of threads valgrind can handle. The default is 500 threads which<br>
should be more than enough for most applications.<br>
<br>
* The new option --valgrind-stacksize=<number> can be used to change the<br>
size of the private thread stacks used by Valgrind. This is useful<br>
for reducing memory use or increasing the stack size if Valgrind<br>
segfaults due to stack overflow.<br>
<br>
* The new option --avg-transtab-entry-size=<number> can be used to specify<br>
the expected instrumented block size, either to reduce memory use or<br>
to avoid excessive retranslation.<br>
<br>
* Valgrind can be built with Intel's ICC compiler, version 14.0 or later.<br>
<br>
* New and modified GDB server monitor features:<br>
<br>
- When a signal is reported in GDB, you can now use the GDB convenience<br>
variable $_siginfo to examine detailed signal information.<br>
<br>
- Valgrind's gdbserver now allows the user to change the signal<br>
to deliver to the process. So, use 'signal SIGNAL' to continue execution<br>
with SIGNAL instead of the signal reported to GDB. Use 'signal 0' to<br>
continue without passing the signal to the process.<br>
<br>
- With GDB >= 7.10, the command 'target remote'<br>
will automatically load the executable file of the process running<br>
under Valgrind. This means you do not need to specify the executable<br>
file yourself, GDB will discover it itself. See GDB documentation about<br>
'qXfer:exec-file:read' packet for more info.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
116002 VG_(printf): Problems with justification of strings and integers<br>
155125 avoid cutting away file:lineno after long function name<br>
197259 Unsupported arch_prtctl PR_SET_GS option<br>
201152 ppc64: Assertion in ppc32g_dirtyhelper_MFSPR_268_269<br>
201216 Fix Valgrind does not support pthread_sigmask() on OS X<br>
201435 Fix Darwin: -v does not show kernel version<br>
208217 "Warning: noted but unhandled ioctl 0x2000747b" on Mac OS X<br>
211256 Fixed an outdated comment regarding the default platform.<br>
211529 Incomplete call stacks for code compiled by newer versions of MSVC<br>
211926 Avoid compilation warnings in valgrind.h with -pedantic<br>
212291 Fix unhandled syscall: unix:132 (mkfifo) on OS X<br>
== 263119<br>
226609 Crediting upstream authors in man page<br>
231257 Valgrind omits path when executing script from shebang line<br>
254164 OS X task_info: UNKNOWN task message [id 3405, to mach_task_self() [..]<br>
294065 Improve the pdb file reader by avoiding hardwired absolute pathnames<br>
269360 s390x: Fix addressing mode selection for compare-and-swap<br>
302630 Memcheck: Assertion failed: 'sizeof(UWord) == sizeof(UInt)'<br>
== 326797<br>
312989 ioctl handling needs to do POST handling on generic ioctls and [..]<br>
319274 Fix unhandled syscall: unix:410 (sigsuspend_nocancel) on OS X<br>
324181 mmap does not handle MAP_32BIT (handle it now, rather than fail it)<br>
327745 Fix valgrind 3.9.0 build fails on Mac OS X 10.6.8<br>
330147 libmpiwrap PMPI_Get_count returns undefined value<br>
333051 mmap of huge pages fails due to incorrect alignment<br>
== 339163<br>
334802 valgrind does not always explain why a given option is bad<br>
335618 mov.w rN, pc/sp (ARM32)<br>
335785 amd64->IR 0xC4 0xE2 0x75 0x2F (vmaskmovpd)<br>
== 307399<br>
== 343175<br>
== 342740<br>
== 346912<br>
335907 segfault when running wine's ddrawex/tests/surface.c under valgrind<br>
338602 AVX2 bit in CPUID missing<br>
338606 Strange message for scripts with invalid interpreter<br>
338731 ppc: Fix testuite build for toolchains not supporting -maltivec<br>
338995 shmat with hugepages (SHM_HUGETLB) fails with EINVAL<br>
339045 Getting valgrind to compile and run on OS X Yosemite (10.10)<br>
== 340252<br>
339156 gdbsrv not called for fatal signal<br>
339215 Valgrind 3.10.0 contain 2013 in copyrights notice<br>
339288 support Cavium Octeon MIPS specific BBIT*32 instructions<br>
339636 Use fxsave64 and fxrstor64 mnemonics instead of old-school rex64 prefix<br>
339442 Fix testsuite build failure on OS X 10.9<br>
339542 Enable compilation with Intel's ICC compiler<br>
339563 The DVB demux DMX_STOP ioctl doesn't have a wrapper<br>
339688 Mac-specific ASM does not support .version directive (cpuid,<br>
tronical and pushfpopf tests)<br>
339745 Valgrind crash when check Marmalade app (partial fix)<br>
339755 Fix known deliberate memory leak in setenv() on Mac OS X 10.9<br>
339778 Linux/TileGx platform support for Valgrind<br>
339780 Fix known uninitialised read in pthread_rwlock_init() on Mac OS X 10.9 <br>
339789 Fix none/tests/execve test on Mac OS X 10.9<br>
339808 Fix none/tests/rlimit64_nofile test on Mac OS X 10.9<br>
339820 vex amd64->IR: 0x66 0xF 0x3A 0x63 0xA 0x42 0x74 0x9 (pcmpistri $0x42)<br>
340115 Fix none/tests/cmdline[1|2] tests on systems which define TMPDIR<br>
340392 Allow user to select more accurate definedness checking in memcheck<br>
to avoid invalid complaints on optimised code<br>
340430 Fix some grammatical weirdness in the manual.<br>
341238 Recognize GCC5/DWARFv5 DW_LANG constants (Go, C11, C++11, C++14)<br>
341419 Signal handler ucontext_t not filled out correctly on OS X<br>
341539 VG_(describe_addr) should not describe address as belonging to client<br>
segment if it is past the heap end<br>
341613 Enable building of manythreads and thread-exits tests on Mac OS X<br>
341615 Fix none/tests/darwin/access_extended test on Mac OS X<br>
341698 Valgrind's AESKEYGENASSIST gives wrong result in words 0 and 2 [..]<br>
341789 aarch64: shmat fails with valgrind on ARMv8<br>
341997 MIPS64: Cavium OCTEON insns - immediate operand handled incorrectly<br>
342008 valgrind.h needs type cast [..] for clang/llvm in 64-bit mode<br>
342038 Unhandled syscalls on aarch64 (mbind/get/set_mempolicy)<br>
342063 wrong format specifier for test mcblocklistsearch in gdbserver_tests<br>
342117 Hang when loading PDB file for MSVC compiled Firefox under Wine<br>
342221 socket connect false positive uninit memory for unknown af family<br>
342353 Allow dumping full massif output while valgrind is still running<br>
342571 Valgrind chokes on AVX compare intrinsic with _CMP_GE_QS<br>
== 346476<br>
== 348387<br>
== 350593<br>
342603 Add I2C_SMBUS ioctl support<br>
342635 OS X 10.10 (Yosemite) - missing system calls and fcntl code<br>
342683 Mark memory past the initial brk limit as unaddressable<br>
342783 arm: unhandled instruction 0xEEFE1ACA = "vcvt.s32.f32 s3, s3, #12"<br>
342795 Internal glibc __GI_mempcpy call should be intercepted<br>
342841 s390x: Support instructions fiebr(a) and fidbr(a)<br>
343012 Unhandled syscall 319 (memfd_create)<br>
343069 Patch updating v4l2 API support<br>
343173 helgrind crash during stack unwind<br>
343219 fix GET_STARTREGS for arm<br>
343303 Fix known deliberate memory leak in setenv() on Mac OS X 10.10<br>
343306 OS X 10.10: UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option<br>
343332 Unhandled instruction 0x9E310021 (fcvtmu) on aarch64<br>
343335 unhandled instruction 0x1E638400 (fccmp) aarch64<br>
343523 OS X mach_ports_register: UNKNOWN task message [id 3403, to [..]<br>
343525 OS X host_get_special_port: UNKNOWN host message [id 412, to [..]<br>
343597 ppc64le: incorrect use of offseof macro<br>
343649 OS X host_create_mach_voucher: UNKNOWN host message [id 222, to [..]<br>
343663 OS X 10.10 Memchecj always reports a leak regardless of [..]<br>
343732 Unhandled syscall 144 (setgid) on aarch64<br>
343733 Unhandled syscall 187 (msgctl and related) on aarch64<br>
343802 s390x: False positive "conditional jump or move depends on [..]<br>
343902 --vgdb=yes doesn't break when --xml=yes is used<br>
343967 Don't warn about setuid/setgid/setcap executable for directories<br>
343978 Recognize DWARF5/GCC5 DW_LANG_Fortran 2003 and 2008 constants<br>
344007 accept4 syscall unhandled on arm64 (242) and ppc64 (344)<br>
344033 Helgrind on ARM32 loses track of mutex state in pthread_cond_wait<br>
344054 www - update info for Solaris/illumos<br>
344416 'make regtest' does not work cleanly on OS X<br>
344235 Remove duplicate include of pub_core_aspacemgr.h<br>
344279 syscall sendmmsg on arm64 (269) and ppc32/64 (349) unhandled<br>
344295 syscall recvmmsg on arm64 (243) and ppc32/64 (343) unhandled<br>
344307 2 unhandled syscalls on aarch64/arm64: umount2(39), mount (40)<br>
344314 callgrind_annotate ... warnings about commands containing newlines<br>
344318 socketcall should wrap recvmmsg and sendmmsg<br>
344337 Fix unhandled syscall: mach:41 (_kernelrpc_mach_port_guard_trap)<br>
344416 Fix 'make regtest' does not work cleanly on OS X<br>
344499 Fix compilation for Linux kernel >= 4.0.0<br>
344512 OS X: unhandled syscall: unix:348 (__pthread_chdir), <br>
unix:349 (__pthread_fchdir)<br>
344559 Garbage collection of unused segment names in address space manager<br>
344560 Fix stack traces missing penultimate frame on OS X<br>
344621 Fix memcheck/tests/err_disable4 test on OS X<br>
344686 Fix suppression for pthread_rwlock_init on OS X 10.10<br>
344702 Fix missing libobjc suppressions on OS X 10.10<br>
== 344543<br>
344936 Fix unhandled syscall: unix:473 (readlinkat) on OS X 10.10<br>
344939 Fix memcheck/tests/xml1 on OS X 10.10<br>
345016 helgrind/tests/locked_vs_unlocked2 is failing sometimes<br>
345079 Fix build problems in VEX/useful/test_main.c<br>
345126 Incorrect handling of VIDIOC_G_AUDIO and G_AUDOUT<br>
345177 arm64: prfm (reg) not implemented<br>
345215 Performance improvements for the register allocator<br>
345248 add support for Solaris OS in valgrind<br>
345338 TIOCGSERIAL and TIOCSSERIAL ioctl support on Linux<br>
345394 Fix memcheck/tests/strchr on OS X<br>
345637 Fix memcheck/tests/sendmsg on OS X<br>
345695 Add POWERPC support for AT_DCACHESIZE and HWCAP2<br>
345824 Fix aspacem segment mismatch: seen with none/tests/bigcode<br>
345887 Fix an assertion in the address space manager<br>
345928 amd64: callstack only contains current function for small stacks<br>
345984 disInstr(arm): unhandled instruction: 0xEE193F1E<br>
345987 MIPS64: Implement cavium LHX instruction<br>
346031 MIPS: Implement support for the CvmCount register (rhwr %0, 31)<br>
346185 Fix typo saving altivec register v24<br>
346267 Compiler warnings for PPC64 code on call to LibVEX_GuestPPC64_get_XER()<br>
and LibVEX_GuestPPC64_get_CR()<br>
346270 Regression tests none/tests/jm_vec/isa_2_07 and<br>
none/tests/test_isa_2_07_part2 have failures on PPC64 little endian<br>
346307 fuse filesystem syscall deadlocks<br>
346324 PPC64 missing support for lbarx, lharx, stbcx and sthcx instructions<br>
346411 MIPS: SysRes::_valEx handling is incorrect<br>
346416 Add support for LL_IOC_PATH2FID and LL_IOC_GETPARENT Lustre ioctls<br>
346474 PPC64 Power 8, spr TEXASRU register not supported<br>
346487 Compiler generates "note" about a future ABI change for PPC64<br>
346562 MIPS64: lwl/lwr instructions are performing 64bit loads<br>
and causing spurious "invalid read of size 8" warnings<br>
346801 Fix link error on OS X: _vgModuleLocal_sf_maybe_extend_stack<br>
347151 Fix suppression for pthread_rwlock_init on OS X 10.8<br>
347233 Fix memcheck/tests/strchr on OS X 10.10 (Haswell) <br>
347322 Power PC regression test cleanup<br>
347379 valgrind --leak-check=full leak errors from system libs on OS X 10.8<br>
== 217236<br>
347389 unhandled syscall: 373 (Linux ARM syncfs)<br>
347686 Patch set to cleanup PPC64 regtests<br>
347978 Remove bash dependencies where not needed<br>
347982 OS X: undefined symbols for architecture x86_64: "_global" [..]<br>
347988 Memcheck: the 'impossible' happened: unexpected size for Addr (OSX/wine)<br>
== 345929<br>
348102 Patch updating v4l2 API support<br>
348247 amd64 front end: jno jumps wrongly when overflow is not set<br>
348269 Improve mmap MAP_HUGETLB support.<br>
348334 (ppc) valgrind does not simulate dcbfl - then my program terminates<br>
348345 Assertion fails for negative lineno<br>
348377 Unsupported ARM instruction: yield<br>
348565 Fix detection of command line option availability for clang<br>
348574 vex amd64->IR pcmpistri SSE4.2 unsupported (pcmpistri $0x18)<br>
348728 Fix broken check for VIDIOC_G_ENC_INDEX<br>
348748 Fix redundant condition<br>
348890 Fix clang warning about unsupported --param inline-unit-growth=900<br>
348949 Bogus "ERROR: --ignore-ranges: suspiciously large range"<br>
349034 Add Lustre ioctls LL_IOC_GROUP_LOCK and LL_IOC_GROUP_UNLOCK<br>
349086 Fix UNKNOWN task message [id 3406, to mach_task_self(), [..]<br>
349087 Fix UNKNOWN task message [id 3410, to mach_task_self(), [..]<br>
349626 Implemented additional Xen hypercalls<br>
349769 Clang/osx: ld: warning: -read_only_relocs cannot be used with x86_64<br>
349790 Clean up of the hardware capability checking utilities.<br>
349828 memcpy intercepts memmove causing src/dst overlap error (ppc64 ld.so)<br>
349874 Fix typos in source code<br>
349879 memcheck: add handwritten assembly for helperc_LOADV*<br>
349941 di_notify_mmap might create wrong start/size DebugInfoMapping<br>
350062 vex x86->IR: 0x66 0xF 0x3A 0xB (ROUNDSD) on OS X<br>
350202 Add limited param to 'monitor block_list'<br>
350290 s390x: Support instructions fixbr(a)<br>
350359 memcheck/tests/x86/fxsave hangs indefinetely on OS X<br>
350809 Fix none/tests/async-sigs for Solaris<br>
350811 Remove reference to --db-attach which has been removed.<br>
350813 Memcheck/x86: enable handwritten assembly helpers for x86/Solaris too<br>
350854 hard-to-understand code in VG_(load_ELF)()<br>
351140 arm64 syscalls setuid (146) and setresgid (149) not implemented<br>
351386 Solaris: Cannot run ld.so.1 under Valgrind<br>
351474 Fix VG_(iseqsigset) as obvious<br>
351531 Typo in /include/vki/vki-xen-physdev.h header guard<br>
351756 Intercept platform_memchr$VARIANT$Haswell on OS X<br>
351858 ldsoexec support on Solaris<br>
351873 Newer gcc doesn't allow __builtin_tabortdc[i] in ppc32 mode<br>
352130 helgrind reports false races for printfs using mempcpy on FILE* state<br>
352284 s390: Conditional jump depends on uninitialised value(s) in vfprintf <br>
352320 arm64 crash on none/tests/nestedfs<br>
352765 Vbit test fails on Power 6<br>
352768 The mbar instruction is missing from the Power PC support<br>
352769 Power PC program priority register (PPR) is not supported<br>
n-i-bz Provide implementations of certain compiler builtins to support<br>
compilers that may not provide those<br>
n-i-bz Old STABS code is still being compiled, but never used. Remove it.<br>
n-i-bz Fix compilation on distros with glibc < 2.5<br>
n-i-bz (vex 3098) Avoid generation of Neon insns on non-Neon hosts<br>
n-i-bz Enable rt_sigpending syscall on ppc64 linux.<br>
n-i-bz mremap did not work properly on shared memory<br>
n-i-bz Fix incorrect sizeof expression in syswrap-xen.c reported by Coverity<br>
n-i-bz In VALGRIND_PRINTF write out thread name, if any, to xml<br>
<br>
(3.11.0.TEST1: 8 September 2015, vex r3187, valgrind r15646)<br>
(3.11.0.TEST2: 21 September 2015, vex r3193, valgrind r15667)<br>
(3.11.0: 22 September 2015, vex r3195, valgrind r15674)<br>
<br>
<br>
<br>
Release 3.10.1 (25 November 2014)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.10.1 is a bug fix release. It fixes various bugs reported in 3.10.0<br>
and backports fixes for all reported missing AArch64 ARMv8 instructions<br>
and syscalls from the trunk. If you package or deliver 3.10.0 for others<br>
to use, you might want to consider upgrading to 3.10.1 instead.<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
335440 arm64: ld1 (single structure) is not implemented<br>
335713 arm64: unhanded instruction: prfm (immediate)<br>
339020 ppc64: memcheck/tests/ppc64/power_ISA2_05 failing in nightly build<br>
339182 ppc64: AvSplat ought to load destination vector register with [..]<br>
339336 PPC64 store quad instruction (stq) is not supposed to change [..]<br>
339433 ppc64 lxvw4x instruction uses four 32-byte loads<br>
339645 Use correct tag names in sys_getdents/64 wrappers<br>
339706 Fix false positive for ioctl(TIOCSIG) on linux<br>
339721 assertion 'check_sibling == sibling' failed in readdwarf3.c ...<br>
339853 arm64 times syscall unknown<br>
339855 arm64 unhandled getsid/setsid syscalls<br>
339858 arm64 dmb sy not implemented<br>
339926 Unhandled instruction 0x1E674001 (frintx) on aarm64<br>
339927 Unhandled instruction 0x9E7100C6 (fcvtmu) on aarch64<br>
339938 disInstr(arm64): unhandled instruction 0x4F8010A4 (fmla)<br>
== 339950<br>
339940 arm64: unhandled syscall: 83 (sys_fdatasync) + patch<br>
340033 arm64: unhandled insn dmb ishld and some other isb-dmb-dsb variants<br>
340028 unhandled syscalls for arm64 (msync, pread64, setreuid and setregid)<br>
340036 arm64: Unhandled instruction ld4 (multiple structures, no offset)<br>
340236 arm64: unhandled syscalls: mknodat, fchdir, chroot, fchownat<br>
340509 arm64: unhandled instruction fcvtas<br>
340630 arm64: fchmod (52) and fchown (55) syscalls not recognized<br>
340632 arm64: unhandled instruction fcvtas<br>
340722 Resolve "UNKNOWN attrlist flags 0:0x10000000"<br>
340725 AVX2: Incorrect decoding of vpbroadcast{b,w} reg,reg forms<br>
340788 warning: unhandled syscall: 318 (getrandom)<br>
340807 disInstr(arm): unhandled instruction: 0xEE989B20<br>
340856 disInstr(arm64): unhandled instruction 0x1E634C45 (fcsel)<br>
340922 arm64: unhandled getgroups/setgroups syscalls<br>
350251 Fix typo in VEX utility program (test_main.c).<br>
350407 arm64: unhandled instruction ucvtf (vector, integer)<br>
350809 none/tests/async-sigs breaks when run under cron on Solaris<br>
350811 update README.solaris after r15445<br>
350813 Use handwritten memcheck assembly helpers on x86/Solaris [..]<br>
350854 strange code in VG_(load_ELF)()<br>
351140 arm64 syscalls setuid (146) and setresgid (149) not implemented<br>
n-i-bz DRD and Helgrind: Handle Imbe_CancelReservation (clrex on ARM)<br>
n-i-bz Add missing ]] to terminate CDATA.<br>
n-i-bz Glibc versions prior to 2.5 do not define PTRACE_GETSIGINFO<br>
n-i-bz Enable sys_fadvise64_64 on arm32.<br>
n-i-bz Add test cases for all remaining AArch64 SIMD, FP and memory insns.<br>
n-i-bz Add test cases for all known arm64 load/store instructions.<br>
n-i-bz PRE(sys_openat): when checking whether ARG1 == VKI_AT_FDCWD [..]<br>
n-i-bz Add detection of old ppc32 magic instructions from bug 278808.<br>
n-i-bz exp-dhat: Implement missing function "dh_malloc_usable_size".<br>
n-i-bz arm64: Implement "fcvtpu w, s".<br>
n-i-bz arm64: implement ADDP and various others<br>
n-i-bz arm64: Implement {S,U}CVTF (scalar, fixedpt).<br>
n-i-bz arm64: enable FCVT{A,N}S X,S.<br>
<br>
(3.10.1: 25 November 2014, vex r3026, valgrind r14785)<br>
<br>
<br>
<br>
Release 3.10.0 (10 September 2014)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
3.10.0 is a feature release with many improvements and the usual<br>
collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,<br>
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,<br>
MIPS64/Linux, ARM/Android, MIPS32/Android, X86/Android, X86/MacOSX 10.9<br>
and AMD64/MacOSX 10.9. Support for MacOSX 10.8 and 10.9 is<br>
significantly improved relative to the 3.9.0 release.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Support for the 64-bit ARM Architecture (AArch64 ARMv8). This port<br>
is mostly complete, and is usable, but some SIMD instructions are as<br>
yet unsupported.<br>
<br>
* Support for little-endian variant of the 64-bit POWER architecture.<br>
<br>
* Support for Android on MIPS32.<br>
<br>
* Support for 64bit FPU on MIPS32 platforms.<br>
<br>
* Both 32- and 64-bit executables are supported on MacOSX 10.8 and 10.9.<br>
<br>
* Configuration for and running on Android targets has changed.<br>
See README.android in the source tree for details.<br>
<br>
* ================== DEPRECATED FEATURES =================<br>
<br>
* --db-attach is now deprecated and will be removed in the next<br>
valgrind feature release. The built-in GDB server capabilities are<br>
superior and should be used instead. Learn more here:<br>
http://valgrind.org/docs/manual/manual-core-adv.html#manual-core-adv.gdbserver<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck:<br>
<br>
- Client code can now selectively disable and re-enable reporting of<br>
invalid address errors in specific ranges using the new client<br>
requests VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE and<br>
VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE.<br>
<br>
- Leak checker: there is a new leak check heuristic called<br>
"length64". This is used to detect interior pointers pointing 8<br>
bytes inside a block, on the assumption that the first 8 bytes<br>
holds the value "block size - 8". This is used by<br>
sqlite3MemMalloc, for example.<br>
<br>
- Checking of system call parameters: if a syscall parameter<br>
(e.g. bind struct sockaddr, sendmsg struct msghdr, ...) has<br>
several fields not initialised, an error is now reported for each<br>
field. Previously, an error was reported only for the first<br>
uninitialised field.<br>
<br>
- Mismatched alloc/free checking: a new flag<br>
--show-mismatched-frees=no|yes [yes] makes it possible to turn off<br>
such checks if necessary.<br>
<br>
* Helgrind:<br>
<br>
- Improvements to error messages:<br>
<br>
o Race condition error message involving heap allocated blocks also<br>
show the thread number that allocated the raced-on block.<br>
<br>
o All locks referenced by an error message are now announced.<br>
Previously, some error messages only showed the lock addresses.<br>
<br>
o The message indicating where a lock was first observed now also<br>
describes the address/location of the lock.<br>
<br>
- Helgrind now understands the Ada task termination rules and<br>
creates a happens-before relationship between a terminated task<br>
and its master. This avoids some false positives and avoids a big<br>
memory leak when a lot of Ada tasks are created and terminated.<br>
The interceptions are only activated with forthcoming releases of<br>
gnatpro >= 7.3.0w-20140611 and gcc >= 5.0.<br>
<br>
- A new GDB server monitor command "info locks" giving the list of<br>
locks, their location, and their status.<br>
<br>
* Callgrind:<br>
<br>
- callgrind_control now supports the --vgdb-prefix argument,<br>
which is needed if valgrind was started with this same argument.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* Unwinding through inlined function calls. Stack unwinding can now<br>
make use of Dwarf3 inlined-unwind information if it is available.<br>
The practical effect is that inlined calls become visible in stack<br>
traces. The suppression matching machinery has been adjusted<br>
accordingly. This is controlled by the new option<br>
--read-inline-info=yes|no. Currently this is enabled by default<br>
only on Linux and Android targets and only for the tools Memcheck,<br>
Helgrind and DRD.<br>
<br>
* Valgrind can now read EXIDX unwind information on 32-bit ARM<br>
targets. If an object contains both CFI and EXIDX unwind<br>
information, Valgrind will prefer the CFI over the EXIDX. This<br>
facilitates unwinding through system libraries on arm-android<br>
targets.<br>
<br>
* Address description logic has been improved and is now common<br>
between Memcheck and Helgrind, resulting in better address<br>
descriptions for some kinds of error messages.<br>
<br>
* Error messages about dubious arguments (eg, to malloc or calloc) are<br>
output like other errors. This means that they can be suppressed<br>
and they have a stack trace.<br>
<br>
* The C++ demangler has been updated for better C++11 support.<br>
<br>
* New and modified GDB server monitor features:<br>
<br>
- Thread local variables/storage (__thread) can now be displayed.<br>
<br>
- The GDB server monitor command "v.info location <address>"<br>
displays information about an address. The information produced<br>
depends on the tool and on the options given to valgrind.<br>
Possibly, the following are described: global variables, local<br>
(stack) variables, allocated or freed blocks, ...<br>
<br>
- The option "--vgdb-stop-at=event1,event2,..." allows the user to<br>
ask the GDB server to stop at the start of program execution, at<br>
the end of the program execution and on Valgrind internal errors.<br>
<br>
- A new monitor command "v.info stats" shows various Valgrind core<br>
and tool statistics.<br>
<br>
- A new monitor command "v.set hostvisibility" allows the GDB server<br>
to provide access to Valgrind internal host status/memory.<br>
<br>
* A new option "--aspace-minaddr=<address>" can in some situations<br>
allow the use of more memory by decreasing the address above which<br>
Valgrind maps memory. It can also be used to solve address<br>
conflicts with system libraries by increasing the default value.<br>
See user manual for details.<br>
<br>
* The amount of memory used by Valgrind to store debug info (unwind<br>
info, line number information and symbol data) has been<br>
significantly reduced, even though Valgrind now reads more<br>
information in order to support unwinding of inlined function calls.<br>
<br>
* Dwarf3 handling with --read-var-info=yes has been improved:<br>
<br>
- Ada and C struct containing VLAs no longer cause a "bad DIE" error<br>
<br>
- Code compiled with<br>
-ffunction-sections -fdata-sections -Wl,--gc-sections<br>
no longer causes assertion failures.<br>
<br>
* Improved checking for the --sim-hints= and --kernel-variant=<br>
options. Unknown strings are now detected and reported to the user<br>
as a usage error.<br>
<br>
* The semantics of stack start/end boundaries in the valgrind.h<br>
VALGRIND_STACK_REGISTER client request has been clarified and<br>
documented. The convention is that start and end are respectively<br>
the lowest and highest addressable bytes of the stack.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
175819 Support for ipv6 socket reporting with --track-fds<br>
232510 make distcheck fails<br>
249435 Analyzing wine programs with callgrind triggers a crash<br>
278972 support for inlined function calls in stacktraces and suppression<br>
== 199144<br>
291310 FXSAVE instruction marks memory as undefined on amd64<br>
303536 ioctl for SIOCETHTOOL (ethtool(8)) isn't wrapped<br>
308729 vex x86->IR: unhandled instruction bytes 0xf 0x5 (syscall) <br>
315199 vgcore file for threaded app does not show which thread crashed<br>
315952 tun/tap ioctls are not supported<br>
323178 Unhandled instruction: PLDW register (ARM) <br>
323179 Unhandled instruction: PLDW immediate (ARM)<br>
324050 Helgrind: SEGV because of unaligned stack when using movdqa<br>
325110 Add test-cases for Power ISA 2.06 insns: divdo/divdo. and divduo/divduo.<br>
325124 [MIPSEL] Compilation error<br>
325477 Phase 4 support for IBM Power ISA 2.07<br>
325538 cavium octeon mips64, valgrind reported "dumping core" [...]<br>
325628 Phase 5 support for IBM Power ISA 2.07<br>
325714 Empty vgcore but RLIMIT_CORE is big enough (too big) <br>
325751 Missing the two privileged Power PC Transactional Memory Instructions<br>
325816 Phase 6 support for IBM Power ISA 2.07<br>
325856 Make SGCheck fail gracefully on unsupported platforms<br>
326026 Iop names for count leading zeros/sign bits incorrectly imply [..]<br>
326436 DRD: False positive in libstdc++ std::list::push_back<br>
326444 Cavium MIPS Octeon Specific Load Indexed Instructions<br>
326462 Refactor vgdb to isolate invoker stuff into separate module<br>
326469 amd64->IR: 0x66 0xF 0x3A 0x63 0xC1 0xE (pcmpistri 0x0E)<br>
326623 DRD: false positive conflict report in a field assignment<br>
326724 Valgrind does not compile on OSX 1.9 Mavericks<br>
326816 Intercept for __strncpy_sse2_unaligned missing?<br>
326921 coregrind fails to compile m_trampoline.S with MIPS/Linux port of V<br>
326983 Clear direction flag after tests on amd64.<br>
327212 Do not prepend the current directory to absolute path names.<br>
327223 Support for Cavium MIPS Octeon Atomic and Count Instructions<br>
327238 Callgrind Assertion 'passed <= last_bb->cjmp_count' failed<br>
327284 s390x: Fix translation of the risbg instruction<br>
327639 vex amd64->IR pcmpestri SSE4.2 instruction is unsupported 0x34<br>
327837 dwz compressed alternate .debug_info and .debug_str not read correctly<br>
327916 DW_TAG_typedef may have no name<br>
327943 s390x: add a redirection for the 'index' function<br>
328100 XABORT not implemented<br>
328205 Implement additional Xen hypercalls<br>
328454 add support Backtraces with ARM unwind tables (EXIDX)<br>
328455 s390x: SIGILL after emitting wrong register pair for ldxbr<br>
328711 valgrind.1 manpage "memcheck options" section is badly generated<br>
328878 vex amd64->IR pcmpestri SSE4.2 instruction is unsupported 0x14<br>
329612 Incorrect handling of AT_BASE for image execution <br>
329694 clang warns about using uninitialized variable <br>
329956 valgrind crashes when lmw/stmw instructions are used on ppc64<br>
330228 mmap must align to VKI_SHMLBA on mips32<br>
330257 LLVM does not support `-mno-dynamic-no-pic` option<br>
330319 amd64->IR: unhandled instruction bytes: 0xF 0x1 0xD5 (xend)<br>
330459 --track-fds=yes doesn't track eventfds<br>
330469 Add clock_adjtime syscall support<br>
330594 Missing sysalls on PowerPC / uClibc<br>
330622 Add test to regression suite for POWER instruction: dcbzl<br>
330939 Support for AMD's syscall instruction on x86<br>
== 308729<br>
330941 Typo in PRE(poll) syscall wrapper<br>
331057 unhandled instruction: 0xEEE01B20 (vfma.f64) (has patch)<br>
331254 Fix expected output for memcheck/tests/dw4<br>
331255 Fix race condition in test none/tests/coolo_sigaction<br>
331257 Fix type of jump buffer in test none/tests/faultstatus<br>
331305 configure uses bash specific syntax<br>
331337 s390x WARNING: unhandled syscall: 326 (dup3)<br>
331380 Syscall param timer_create(evp) points to uninitialised byte(s)<br>
331476 Patch to handle ioctl 0x5422 on Linux (x86 and amd64)<br>
331829 Unexpected ioctl opcode sign extension<br>
331830 ppc64: WARNING: unhandled syscall: 96/97<br>
331839 drd/tests/sem_open specifies invalid semaphore name <br>
331847 outcome of drd/tests/thread_name is nondeterministic<br>
332037 Valgrind cannot handle Thumb "add pc, reg"<br>
332055 drd asserts on platforms with VG_STACK_REDZONE_SZB == 0 and<br>
consistency checks enabled<br>
332263 intercepts for pthread_rwlock_timedrdlock and<br>
pthread_rwlock_timedwrlock are incorrect<br>
332265 drd could do with post-rwlock_init and pre-rwlock_destroy<br>
client requests<br>
332276 Implement additional Xen hypercalls<br>
332658 ldrd.w r1, r2, [PC, #imm] does not adjust for 32bit alignment<br>
332765 Fix ms_print to create temporary files in a proper directory<br>
333072 drd: Add semaphore annotations<br>
333145 Tests for missaligned PC+#imm access for arm<br>
333228 AAarch64 Missing instruction encoding: mrs %[reg], ctr_el0<br>
333230 AAarch64 missing instruction encodings: dc, ic, dsb.<br>
333248 WARNING: unhandled syscall: unix:443<br>
333428 ldr.w pc [rD, #imm] instruction leads to assertion<br>
333501 cachegrind: assertion: Cache set count is not a power of two.<br>
== 336577<br>
== 292281<br>
333666 Recognize MPX instructions and bnd prefix.<br>
333788 Valgrind does not support the CDROM_DISC_STATUS ioctl (has patch)<br>
333817 Valgrind reports the memory areas written to by the SG_IO<br>
ioctl as untouched<br>
334049 lzcnt fails silently (x86_32)<br>
334384 Valgrind does not have support Little Endian support for<br>
IBM POWER PPC 64<br>
334585 recvmmsg unhandled (+patch) (arm)<br>
334705 sendmsg and recvmsg should guard against bogus msghdr fields.<br>
334727 Build fails with -Werror=format-security<br>
334788 clarify doc about --log-file initial program directory<br>
334834 PPC64 Little Endian support, patch 2<br>
334836 PPC64 Little Endian support, patch 3 testcase fixes<br>
334936 patch to fix false positives on alsa SNDRV_CTL_* ioctls<br>
335034 Unhandled ioctl: HCIGETDEVLIST<br>
335155 vgdb, fix error print statement.<br>
335262 arm64: movi 8bit version is not supported<br>
335263 arm64: dmb instruction is not implemented<br>
335441 unhandled ioctl 0x8905 (SIOCATMARK) when running wine under valgrind<br>
335496 arm64: sbc/abc instructions are not implemented<br>
335554 arm64: unhandled instruction: abs<br>
335564 arm64: unhandled instruction: fcvtpu Xn, Sn<br>
335735 arm64: unhandled instruction: cnt<br>
335736 arm64: unhandled instruction: uaddlv<br>
335848 arm64: unhandled instruction: {s,u}cvtf<br>
335902 arm64: unhandled instruction: sli<br>
335903 arm64: unhandled instruction: umull (vector)<br>
336055 arm64: unhandled instruction: mov (element)<br>
336062 arm64: unhandled instruction: shrn{,2}<br>
336139 mip64: [...] valgrind hangs and spins on a single core [...]<br>
336189 arm64: unhandled Instruction: mvn<br>
336435 Valgrind hangs in pthread_spin_lock consuming 100% CPU<br>
336619 valgrind --read-var-info=yes doesn't handle DW_TAG_restrict_type<br>
336772 Make moans about unknown ioctls more informative<br>
336957 Add a section about the Solaris/illumos port on the webpage<br>
337094 ifunc wrapper is broken on ppc64<br>
337285 fcntl commands F_OFD_SETLK, F_OFD_SETLKW, and F_OFD_GETLK not supported<br>
337528 leak check heuristic for block prefixed by length as 64bit number<br>
337740 Implement additional Xen hypercalls<br>
337762 guest_arm64_toIR.c:4166 (dis_ARM64_load_store): Assertion `0' failed.<br>
337766 arm64-linux: unhandled syscalls mlock (228) and mlockall (230)<br>
337871 deprecate --db-attach<br>
338023 Add support for all V4L2/media ioctls<br>
338024 inlined functions are not shown if DW_AT_ranges is used<br>
338106 Add support for 'kcmp' syscall<br>
338115 DRD: computed conflict set differs from actual after fork<br>
338160 implement display of thread local storage in gdbsrv<br>
338205 configure.ac and check for -Wno-tautological-compare<br>
338300 coredumps are missing one byte of every segment<br>
338445 amd64 vbit-test fails with unknown opcodes used by arm64 VEX<br>
338499 --sim-hints parsing broken due to wrong order in tokens<br>
338615 suppress glibc 2.20 optimized strcmp implementation for ARMv7<br>
338681 Unable to unwind through clone thread created on i386-linux<br>
338698 race condition between gdbsrv and vgdb on startup<br>
338703 helgrind on arm-linux gets false positives in dynamic loader<br>
338791 alt dwz files can be relative of debug/main file<br>
338878 on MacOS: assertion 'VG_IS_PAGE_ALIGNED(clstack_end+1)' failed<br>
338932 build V-trunk with gcc-trunk<br>
338974 glibc 2.20 changed size of struct sigaction sa_flags field on s390<br>
345079 Fix build problems in VEX/useful/test_main.c<br>
n-i-bz Fix KVM_CREATE_IRQCHIP ioctl handling<br>
n-i-bz s390x: Fix memory corruption for multithreaded applications<br>
n-i-bz vex arm->IR: allow PC as basereg in some LDRD cases<br>
n-i-bz internal error in Valgrind if vgdb transmit signals when ptrace invoked<br>
n-i-bz Fix mingw64 support in valgrind.h (dev@, 9 May 2014)<br>
n-i-bz drd manual: Document how to C++11 programs that use class "std::thread"<br>
n-i-bz Add command-line option --default-suppressions<br>
n-i-bz Add support for BLKDISCARDZEROES ioctl<br>
n-i-bz ppc32/64: fix a regression with the mtfsb0/mtfsb1 instructions<br>
n-i-bz Add support for sys_pivot_root and sys_unshare<br>
<br>
(3.10.0.BETA1: 2 September 2014, vex r2940, valgrind r14428)<br>
(3.10.0.BETA2: 8 September 2014, vex r2950, valgrind r14503)<br>
(3.10.0: 10 September 2014, vex r2950, valgrind r14514)<br>
<br>
<br>
<br>
Release 3.9.0 (31 October 2013)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.9.0 is a feature release with many improvements and the usual<br>
collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM/Linux, PPC32/Linux,<br>
PPC64/Linux, S390X/Linux, MIPS32/Linux, MIPS64/Linux, ARM/Android,<br>
X86/Android, X86/MacOSX 10.7 and AMD64/MacOSX 10.7. Support for<br>
MacOSX 10.8 is significantly improved relative to the 3.8.0 release.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Support for MIPS64 LE and BE running Linux. Valgrind has been<br>
tested on MIPS64 Debian Squeeze and Debian Wheezy distributions.<br>
<br>
* Support for MIPS DSP ASE on MIPS32 platforms.<br>
<br>
* Support for s390x Decimal Floating Point instructions on hosts that<br>
have the DFP facility installed.<br>
<br>
* Support for POWER8 (Power ISA 2.07) instructions<br>
<br>
* Support for Intel AVX2 instructions. This is available only on 64<br>
bit code.<br>
<br>
* Initial support for Intel Transactional Synchronization Extensions,<br>
both RTM and HLE.<br>
<br>
* Initial support for Hardware Transactional Memory on POWER.<br>
<br>
* Improved support for MacOSX 10.8 (64-bit only). Memcheck can now<br>
run large GUI apps tolerably well.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck:<br>
<br>
- Improvements in handling of vectorised code, leading to<br>
significantly fewer false error reports. You need to use the flag<br>
--partial-loads-ok=yes to get the benefits of these changes.<br>
<br>
- Better control over the leak checker. It is now possible to<br>
specify which leak kinds (definite/indirect/possible/reachable)<br>
should be displayed, which should be regarded as errors, and which<br>
should be suppressed by a given leak suppression. This is done<br>
using the options --show-leak-kinds=kind1,kind2,..,<br>
--errors-for-leak-kinds=kind1,kind2,.. and an optional<br>
"match-leak-kinds:" line in suppression entries, respectively.<br>
<br>
Note that generated leak suppressions contain this new line and<br>
are therefore more specific than in previous releases. To get the<br>
same behaviour as previous releases, remove the "match-leak-kinds:"<br>
line from generated suppressions before using them.<br>
<br>
- Reduced "possible leak" reports from the leak checker by the use<br>
of better heuristics. The available heuristics provide detection<br>
of valid interior pointers to std::stdstring, to new[] allocated<br>
arrays with elements having destructors and to interior pointers<br>
pointing to an inner part of a C++ object using multiple<br>
inheritance. They can be selected individually using the<br>
option --leak-check-heuristics=heur1,heur2,...<br>
<br>
- Better control of stacktrace acquisition for heap-allocated<br>
blocks. Using the --keep-stacktraces option, it is possible to<br>
control independently whether a stack trace is acquired for each<br>
allocation and deallocation. This can be used to create better<br>
"use after free" errors or to decrease Valgrind's resource<br>
consumption by recording less information.<br>
<br>
- Better reporting of leak suppression usage. The list of used<br>
suppressions (shown when the -v option is given) now shows, for<br>
each leak suppressions, how many blocks and bytes it suppressed<br>
during the last leak search.<br>
<br>
* Helgrind:<br>
<br>
- False errors resulting from the use of statically initialised<br>
mutexes and condition variables (PTHREAD_MUTEX_INITIALISER, etc)<br>
have been removed.<br>
<br>
- False errors resulting from the use of pthread_cond_waits that<br>
timeout, have been removed.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* Some attempt to tune Valgrind's space requirements to the expected<br>
capabilities of the target:<br>
<br>
- The default size of the translation cache has been reduced from 8<br>
sectors to 6 on Android platforms, since each sector occupies<br>
about 40MB when using Memcheck.<br>
<br>
- The default size of the translation cache has been increased to 16<br>
sectors on all other platforms, reflecting the fact that large<br>
applications require instrumentation and storage of huge amounts<br>
of code. For similar reasons, the number of memory mapped<br>
segments that can be tracked has been increased by a factor of 6.<br>
<br>
- In all cases, the maximum number of sectors in the translation<br>
cache can be controlled by the new flag --num-transtab-sectors.<br>
<br>
* Changes in how debug info (line numbers, etc) is read:<br>
<br>
- Valgrind no longer temporarily mmaps the entire object to read<br>
from it. Instead, reading is done through a small fixed sized<br>
buffer. This avoids virtual memory usage spikes when Valgrind<br>
reads debuginfo from large shared objects.<br>
<br>
- A new experimental remote debug info server. Valgrind can read<br>
debug info from a different machine (typically, a build host)<br>
where debuginfo objects are stored. This can save a lot of time<br>
and hassle when running Valgrind on resource-constrained targets<br>
(phones, tablets) when the full debuginfo objects are stored<br>
somewhere else. This is enabled by the --debuginfo-server=<br>
option.<br>
<br>
- Consistency checking between main and debug objects can be<br>
disabled using the --allow-mismatched-debuginfo option.<br>
<br>
* Stack unwinding by stack scanning, on ARM. Unwinding by stack<br>
scanning can recover stack traces in some cases when the normal<br>
unwind mechanisms fail. Stack scanning is best described as "a<br>
nasty, dangerous and misleading hack" and so is disabled by default.<br>
Use --unw-stack-scan-thresh and --unw-stack-scan-frames to enable<br>
and control it.<br>
<br>
* Detection and merging of recursive stack frame cycles. When your<br>
program has recursive algorithms, this limits the memory used by<br>
Valgrind for recorded stack traces and avoids recording<br>
uninteresting repeated calls. This is controlled by the command<br>
line option --merge-recursive-frame and by the monitor command<br>
"v.set merge-recursive-frames".<br>
<br>
* File name and line numbers for used suppressions. The list of used<br>
suppressions (shown when the -v option is given) now shows, for each<br>
used suppression, the file name and line number where the suppression<br>
is defined.<br>
<br>
* New and modified GDB server monitor features:<br>
<br>
- valgrind.h has a new client request, VALGRIND_MONITOR_COMMAND,<br>
that can be used to execute gdbserver monitor commands from the<br>
client program.<br>
<br>
- A new monitor command, "v.info open_fds", that gives the list of<br>
open file descriptors and additional details.<br>
<br>
- An optional message in the "v.info n_errs_found" monitor command,<br>
for example "v.info n_errs_found test 1234 finished", allowing a<br>
comment string to be added to the process output, perhaps for the<br>
purpose of separating errors of different tests or test phases.<br>
<br>
- A new monitor command "v.info execontext" that shows information<br>
about the stack traces recorded by Valgrind.<br>
<br>
- A new monitor command "v.do expensive_sanity_check_general" to run<br>
some internal consistency checks.<br>
<br>
* New flag --sigill-diagnostics to control whether a diagnostic<br>
message is printed when the JIT encounters an instruction it can't<br>
translate. The actual behavior -- delivery of SIGILL to the<br>
application -- is unchanged.<br>
<br>
* The maximum amount of memory that Valgrind can use on 64 bit targets<br>
has been increased from 32GB to 64GB. This should make it possible<br>
to run applications on Memcheck that natively require up to about 35GB.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
123837 system call: 4th argument is optional, depending on cmd<br>
135425 memcheck should tell you where Freed blocks were Mallocd<br>
164485 VG_N_SEGNAMES and VG_N_SEGMENTS are (still) too small<br>
207815 Adds some of the drm ioctls to syswrap-linux.c <br>
251569 vex amd64->IR: 0xF 0x1 0xF9 0xBF 0x90 0xD0 0x3 0x0 (RDTSCP)<br>
252955 Impossible to compile with ccache<br>
253519 Memcheck reports auxv pointer accesses as invalid reads.<br>
263034 Crash when loading some PPC64 binaries<br>
269599 Increase deepest backtrace<br>
274695 s390x: Support "compare to/from logical" instructions (z196)<br>
275800 s390x: Autodetect cache info (part 2)<br>
280271 Valgrind reports possible memory leaks on still-reachable std::string<br>
284540 Memcheck shouldn't count suppressions matching still-reachable [..]<br>
289578 Backtraces with ARM unwind tables (stack scan flags)<br>
296311 Wrong stack traces due to -fomit-frame-pointer (x86) <br>
304832 ppc32: build failure<br>
305431 Use find_buildid shdr fallback for separate .debug files<br>
305728 Add support for AVX2 instructions<br>
305948 ppc64: code generation for ShlD64 / ShrD64 asserts<br>
306035 s390x: Fix IR generation for LAAG and friends<br>
306054 s390x: Condition code computation for convert-to-int/logical<br>
306098 s390x: alternate opcode form for convert to/from fixed<br>
306587 Fix cache line detection from auxiliary vector for PPC.<br>
306783 Mips unhandled syscall : 4025 / 4079 / 4182<br>
307038 DWARF2 CFI reader: unhandled DW_OP_ opcode 0x8 (DW_OP_const1u et al)<br>
307082 HG false positive: pthread_cond_destroy: destruction of unknown CV<br>
307101 sys_capget second argument can be NULL<br>
307103 sys_openat: If pathname is absolute, then dirfd is ignored.<br>
307106 amd64->IR: f0 0f c0 02 (lock xadd byte)<br>
307113 s390x: DFP support<br>
307141 valgrind does't work in mips-linux system<br>
307155 filter_gdb should filter out syscall-template.S T_PSEUDO<br>
307285 x86_amd64 feature test for avx in test suite is wrong<br>
307290 memcheck overlap testcase needs memcpy version filter<br>
307463 Please add "&limit=0" to the "all open bugs" link<br>
307465 --show-possibly-lost=no should reduce the error count / exit code<br>
307557 Leaks on Mac OS X 10.7.5 libraries at ImageLoader::recursiveInit[..]<br>
307729 pkgconfig support broken valgrind.pc<br>
307828 Memcheck false errors SSE optimized wcscpy, wcscmp, wcsrchr, wcschr<br>
307955 Building valgrind 3.7.0-r4 fails in Gentoo AMD64 when using clang<br>
308089 Unhandled syscall on ppc64: prctl<br>
308135 PPC32 MPC8xx has 16 bytes cache size<br>
308321 testsuite memcheck filter interferes with gdb_filter <br>
308333 == 307106<br>
308341 vgdb should report process exit (or fatal signal)<br>
308427 s390 memcheck reports tsearch cjump/cmove depends on uninit<br>
308495 Remove build dependency on installed Xen headers<br>
308573 Internal error on 64-bit instruction executed in 32-bit mode<br>
308626 == 308627<br>
308627 pmovmskb validity bit propagation is imprecise<br>
308644 vgdb command for having the info for the track-fds option<br>
308711 give more info about aspacemgr and arenas in out_of_memory<br>
308717 ARM: implement fixed-point VCVT.F64.[SU]32<br>
308718 ARM implement SMLALBB family of instructions<br>
308886 Missing support for PTRACE_SET/GETREGSET <br>
308930 syscall name_to_handle_at (303 on amd64) not handled<br>
309229 V-bit tester does not report number of tests generated<br>
309323 print unrecognized instuction on MIPS<br>
309425 Provide a --sigill-diagnostics flag to suppress illegal [..]<br>
309427 SSE optimized stpncpy trigger uninitialised value [..] errors<br>
309430 Self hosting ppc64 encounters a vassert error on operand type<br>
309600 valgrind is a bit confused about 0-sized sections<br>
309823 Generate errors for still reachable blocks<br>
309921 PCMPISTRI validity bit propagation is imprecise<br>
309922 none/tests/ppc64/test_dfp5 sometimes fails<br>
310169 The Iop_CmpORD class of Iops is not supported by the vbit checker.<br>
310424 --read-var-info does not properly describe static variables <br>
310792 search additional path for debug symbols<br>
310931 s390x: Message-security assist (MSA) instruction extension [..]<br>
311100 PPC DFP implementation of the integer operands is inconsistent [..]<br>
311318 ARM: "128-bit constant is not implemented" error message<br>
311407 ssse3 bcopy (actually converted memcpy) causes invalid read [..]<br>
311690 V crashes because it redirects branches inside of a redirected function<br>
311880 x86_64: make regtest hangs at shell_valid1<br>
311922 WARNING: unhandled syscall: 170<br>
311933 == 251569<br>
312171 ppc: insn selection for DFP<br>
312571 Rounding mode call wrong for the DFP Iops [..]<br>
312620 Change to Iop_D32toD64 [..] for s390 DFP support broke ppc [..]<br>
312913 Dangling pointers error should also report the alloc stack trace<br>
312980 Building on Mountain Lion generates some compiler warnings<br>
313267 Adding MIPS64/Linux port to Valgrind<br>
313348 == 251569<br>
313354 == 251569<br>
313811 Buffer overflow in assert_fail<br>
314099 coverity pointed out error in VEX guest_ppc_toIR.c insn_suffix<br>
314269 ppc: dead code in insn selection<br>
314718 ARM: implement integer divide instruction (sdiv and udiv)<br>
315345 cl-format.xml and callgrind/dump.c don't agree on using cfl= or cfi=<br>
315441 sendmsg syscall should ignore unset msghdr msg_flags<br>
315534 msgrcv inside a thread causes valgrind to hang (block)<br>
315545 Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed<br>
315689 disInstr(thumb): unhandled instruction: 0xF852 0x0E10 (LDRT)<br>
315738 disInstr(arm): unhandled instruction: 0xEEBE0BEE (vcvt.s32.f64)<br>
315959 valgrind man page has bogus SGCHECK (and no BBV) OPTIONS section<br>
316144 valgrind.1 manpage contains unknown ??? strings [..]<br>
316145 callgrind command line options in manpage reference (unknown) [..]<br>
316145 callgrind command line options in manpage reference [..]<br>
316181 drd: Fixed a 4x slowdown for certain applications<br>
316503 Valgrind does not support SSE4 "movntdqa" instruction<br>
316535 Use of |signed int| instead of |size_t| in valgrind messages<br>
316696 fluidanimate program of parsec 2.1 stuck <br>
316761 syscall open_by_handle_at (304 on amd64, 342 on x86) not handled<br>
317091 Use -Wl,-Ttext-segment when static linking if possible [..]<br>
317186 "Impossible happens" when occurs VCVT instruction on ARM<br>
317318 Support for Threading Building Blocks "scalable_malloc"<br>
317444 amd64->IR: 0xC4 0x41 0x2C 0xC2 0xD2 0x8 (vcmpeq_uqps)<br>
317461 Fix BMI assembler configure check and avx2/bmi/fma vgtest prereqs<br>
317463 bmi testcase IR SANITY CHECK FAILURE<br>
317506 memcheck/tests/vbit-test fails with unknown opcode after [..]<br>
318050 libmpiwrap fails to compile with out-of-source build<br>
318203 setsockopt handling needs to handle SOL_SOCKET/SO_ATTACH_FILTER<br>
318643 annotate_trace_memory tests infinite loop on arm and ppc [..]<br>
318773 amd64->IR: 0xF3 0x48 0x0F 0xBC 0xC2 0xC3 0x66 0x0F<br>
318929 Crash with: disInstr(thumb): 0xF321 0x0001 (ssat16)<br>
318932 Add missing PPC64 and PPC32 system call support<br>
319235 --db-attach=yes is broken with Yama (ptrace scoping) enabled<br>
319395 Crash with unhandled instruction on STRT (Thumb) instructions<br>
319494 VEX Makefile-gcc standalone build update after r2702<br>
319505 [MIPSEL] Crash: unhandled UNRAY operator.<br>
319858 disInstr(thumb): unhandled instruction on instruction STRBT<br>
319932 disInstr(thumb): unhandled instruction on instruction STRHT<br>
320057 Problems when we try to mmap more than 12 memory pages on MIPS32<br>
320063 Memory from PTRACE_GET_THREAD_AREA is reported uninitialised<br>
320083 disInstr(thumb): unhandled instruction on instruction LDRBT<br>
320116 bind on AF_BLUETOOTH produces warnings because of sockaddr_rc padding<br>
320131 WARNING: unhandled syscall: 369 on ARM (prlimit64)<br>
320211 Stack buffer overflow in ./coregrind/m_main.c with huge TMPDIR<br>
320661 vgModuleLocal_read_elf_debug_info(): "Assertion '!di->soname'<br>
320895 add fanotify support (patch included)<br>
320998 vex amd64->IR pcmpestri and pcmpestrm SSE4.2 instruction<br>
321065 Valgrind updates for Xen 4.3<br>
321148 Unhandled instruction: PLI (Thumb 1, 2, 3)<br>
321363 Unhandled instruction: SSAX (ARM + Thumb)<br>
321364 Unhandled instruction: SXTAB16 (ARM + Thumb)<br>
321466 Unhandled instruction: SHASX (ARM + Thumb)<br>
321467 Unhandled instruction: SHSAX (ARM + Thumb)<br>
321468 Unhandled instruction: SHSUB16 (ARM + Thumb)<br>
321619 Unhandled instruction: SHSUB8 (ARM + Thumb)<br>
321620 Unhandled instruction: UASX (ARM + Thumb)<br>
321621 Unhandled instruction: USAX (ARM + Thumb)<br>
321692 Unhandled instruction: UQADD16 (ARM + Thumb)<br>
321693 Unhandled instruction: LDRSBT (Thumb)<br>
321694 Unhandled instruction: UQASX (ARM + Thumb)<br>
321696 Unhandled instruction: UQSAX (Thumb + ARM)<br>
321697 Unhandled instruction: UHASX (ARM + Thumb)<br>
321703 Unhandled instruction: UHSAX (ARM + Thumb)<br>
321704 Unhandled instruction: REVSH (ARM + Thumb)<br>
321730 Add cg_diff and cg_merge man pages<br>
321738 Add vgdb and valgrind-listener man pages<br>
321814 == 315545<br>
321891 Unhandled instruction: LDRHT (Thumb)<br>
321960 pthread_create() then alloca() causing invalid stack write errors<br>
321969 ppc32 and ppc64 don't support [lf]setxattr<br>
322254 Show threadname together with tid if set by application<br>
322294 Add initial support for IBM Power ISA 2.07<br>
322368 Assertion failure in wqthread_hijack under OS X 10.8<br>
322563 vex mips->IR: 0x70 0x83 0xF0 0x3A<br>
322807 VALGRIND_PRINTF_BACKTRACE writes callstack to xml and text to stderr<br>
322851 0bXXX binary literal syntax is not standard <br>
323035 Unhandled instruction: LDRSHT(Thumb)<br>
323036 Unhandled instruction: SMMLS (ARM and Thumb)<br>
323116 The memcheck/tests/ppc64/power_ISA2_05.c fails to build [..]<br>
323175 Unhandled instruction: SMLALD (ARM + Thumb)<br>
323177 Unhandled instruction: SMLSLD (ARM + Thumb)<br>
323432 Calling pthread_cond_destroy() or pthread_mutex_destroy() [..]<br>
323437 Phase 2 support for IBM Power ISA 2.07<br>
323713 Support mmxext (integer sse) subset on i386 (athlon)<br>
323803 Transactional memory instructions are not supported for Power<br>
323893 SSE3 not available on amd cpus in valgrind<br>
323905 Probable false positive from Valgrind/drd on close()<br>
323912 valgrind.h header isn't compatible for mingw64<br>
324047 Valgrind doesn't support [LDR,ST]{S}[B,H]T ARM instructions<br>
324149 helgrind: When pthread_cond_timedwait returns ETIMEDOUT [..]<br>
324181 mmap does not handle MAP_32BIT<br>
324227 memcheck false positive leak when a thread calls exit+block [..]<br>
324421 Support for fanotify API on ARM architecture<br>
324514 gdbserver monitor cmd output behaviour consistency [..]<br>
324518 ppc64: Emulation of dcbt instructions does not handle [..]<br>
324546 none/tests/ppc32 test_isa_2_07_part2 requests -m64<br>
324582 When access is made to freed memory, report both allocation [..]<br>
324594 Fix overflow computation for Power ISA 2.06 insns: mulldo/mulldo.<br>
324765 ppc64: illegal instruction when executing none/tests/ppc64/jm-misc<br>
324816 Incorrect VEX implementation for xscvspdp/xvcvspdp for SNaN inputs<br>
324834 Unhandled instructions in Microsoft C run-time for x86_64<br>
324894 Phase 3 support for IBM Power ISA 2.07<br>
326091 drd: Avoid false race reports from optimized strlen() impls<br>
326113 valgrind libvex hwcaps error on AMD64 <br>
n-i-bz Some wrong command line options could be ignored<br>
n-i-bz patch to allow fair-sched on android<br>
n-i-bz report error for vgdb snapshot requested before execution<br>
n-i-bz same as 303624 (fixed in 3.8.0), but for x86 android<br>
<br>
(3.9.0: 31 October 2013, vex r2796, valgrind r13708)<br>
<br>
<br>
<br>
Release 3.8.1 (19 September 2012)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.8.1 is a bug fix release. It fixes some assertion failures in 3.8.0<br>
that occur moderately frequently in real use cases, adds support for<br>
some missing instructions on ARM, and fixes a deadlock condition on<br>
MacOSX. If you package or deliver 3.8.0 for others to use, you might<br>
want to consider upgrading to 3.8.1 instead.<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
284004 == 301281<br>
289584 Unhandled instruction: 0xF 0x29 0xE5 (MOVAPS)<br>
295808 amd64->IR: 0xF3 0xF 0xBC 0xC0 (TZCNT)<br>
298281 wcslen causes false(?) uninitialised value warnings<br>
301281 valgrind hangs on OS X when the process calls system()<br>
304035 disInstr(arm): unhandled instruction 0xE1023053<br>
304867 implement MOVBE instruction in x86 mode<br>
304980 Assertion 'lo <= hi' failed in vgModuleLocal_find_rx_mapping<br>
305042 amd64: implement 0F 7F encoding of movq between two registers<br>
305199 ARM: implement QDADD and QDSUB<br>
305321 amd64->IR: 0xF 0xD 0xC (prefetchw)<br>
305513 killed by fatal signal: SIGSEGV<br>
305690 DRD reporting invalid semaphore when sem_trywait fails<br>
305926 Invalid alignment checks for some AVX instructions<br>
306297 disInstr(thumb): unhandled instruction 0xE883 0x000C<br>
306310 3.8.0 release tarball missing some files<br>
306612 RHEL 6 glibc-2.X default suppressions need /lib*/libc-*patterns<br>
306664 vex amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x46 0x66 0xF<br>
n-i-bz shmat of a segment > 4Gb does not work <br>
n-i-bz simulate_control_c script wrong USR1 signal number on mips<br>
n-i-bz vgdb ptrace calls wrong on mips [...]<br>
n-i-bz Fixes for more MPI false positives<br>
n-i-bz exp-sgcheck's memcpy causes programs to segfault<br>
n-i-bz OSX build w/ clang: asserts at startup<br>
n-i-bz Incorrect undef'dness prop for Iop_DPBtoBCD and Iop_BCDtoDPB<br>
n-i-bz fix a couple of union tag-vs-field mixups<br>
n-i-bz OSX: use __NR_poll_nocancel rather than __NR_poll<br>
<br>
The following bugs were fixed in 3.8.0 but not listed in this NEWS<br>
file at the time:<br>
<br>
254088 Valgrind should know about UD2 instruction<br>
301280 == 254088<br>
301902 == 254088<br>
304754 NEWS blows TeX's little mind<br>
<br>
(3.8.1: 19 September 2012, vex r2537, valgrind r12996)<br>
<br>
<br>
<br>
Release 3.8.0 (10 August 2012)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.8.0 is a feature release with many improvements and the usual<br>
collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM/Linux, PPC32/Linux,<br>
PPC64/Linux, S390X/Linux, MIPS/Linux, ARM/Android, X86/Android,<br>
X86/MacOSX 10.6/10.7 and AMD64/MacOSX 10.6/10.7. Support for recent<br>
distros and toolchain components (glibc 2.16, gcc 4.7) has been added.<br>
There is initial support for MacOSX 10.8, but it is not usable for<br>
serious work at present.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Support for MIPS32 platforms running Linux. Valgrind has been<br>
tested on MIPS32 and MIPS32r2 platforms running different Debian<br>
Squeeze and MeeGo distributions. Both little-endian and big-endian<br>
cores are supported. The tools Memcheck, Massif and Lackey have<br>
been tested and are known to work. See README.mips for more details.<br>
<br>
* Preliminary support for Android running on x86.<br>
<br>
* Preliminary (as-yet largely unusable) support for MacOSX 10.8.<br>
<br>
* Support for Intel AVX instructions and for AES instructions. This<br>
support is available only for 64 bit code.<br>
<br>
* Support for POWER Decimal Floating Point instructions.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Non-libc malloc implementations are now supported. This is useful<br>
for tools that replace malloc (Memcheck, Massif, DRD, Helgrind).<br>
Using the new option --soname-synonyms, such tools can be informed<br>
that the malloc implementation is either linked statically into the<br>
executable, or is present in some other shared library different<br>
from libc.so. This makes it possible to process statically linked<br>
programs, and programs using other malloc libraries, for example<br>
TCMalloc or JEMalloc.<br>
<br>
* For tools that provide their own replacement for malloc et al, the<br>
option --redzone-size=<number> allows users to specify the size of<br>
the padding blocks (redzones) added before and after each client<br>
allocated block. Smaller redzones decrease the memory needed by<br>
Valgrind. Bigger redzones increase the chance to detect blocks<br>
overrun or underrun. Prior to this change, the redzone size was<br>
hardwired to 16 bytes in Memcheck.<br>
<br>
* Memcheck:<br>
<br>
- The leak_check GDB server monitor command now can<br>
control the maximum nr of loss records to output.<br>
<br>
- Reduction of memory use for applications allocating<br>
many blocks and/or having many partially defined bytes.<br>
<br>
- Addition of GDB server monitor command 'block_list' that lists<br>
the addresses/sizes of the blocks of a leak search loss record.<br>
<br>
- Addition of GDB server monitor command 'who_points_at' that lists<br>
the locations pointing at a block.<br>
<br>
- If a redzone size > 0 is given, VALGRIND_MALLOCLIKE_BLOCK now will<br>
detect an invalid access of these redzones, by marking them<br>
noaccess. Similarly, if a redzone size is given for a memory<br>
pool, VALGRIND_MEMPOOL_ALLOC will mark the redzones no access.<br>
This still allows to find some bugs if the user has forgotten to<br>
mark the pool superblock noaccess.<br>
<br>
- Performance of memory leak check has been improved, especially in<br>
cases where there are many leaked blocks and/or many suppression<br>
rules used to suppress leak reports.<br>
<br>
- Reduced noise (false positive) level on MacOSX 10.6/10.7, due to<br>
more precise analysis, which is important for LLVM/Clang<br>
generated code. This is at the cost of somewhat reduced<br>
performance. Note there is no change to analysis precision or<br>
costs on Linux targets.<br>
<br>
* DRD:<br>
<br>
- Added even more facilities that can help finding the cause of a data<br>
race, namely the command-line option --ptrace-addr and the macro<br>
DRD_STOP_TRACING_VAR(x). More information can be found in the manual.<br>
<br>
- Fixed a subtle bug that could cause false positive data race reports.<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* The C++ demangler has been updated so as to work well with C++ <br>
compiled by up to at least g++ 4.6.<br>
<br>
* Tool developers can make replacement/wrapping more flexible thanks<br>
to the new option --soname-synonyms. This was reported above, but<br>
in fact is very general and applies to all function<br>
replacement/wrapping, not just to malloc-family functions.<br>
<br>
* Round-robin scheduling of threads can be selected, using the new<br>
option --fair-sched= yes. Prior to this change, the pipe-based<br>
thread serialisation mechanism (which is still the default) could<br>
give very unfair scheduling. --fair-sched=yes improves<br>
responsiveness of interactive multithreaded applications, and<br>
improves repeatability of results from the thread checkers Helgrind<br>
and DRD.<br>
<br>
* For tool developers: support to run Valgrind on Valgrind has been<br>
improved. We can now routinely Valgrind on Helgrind or Memcheck.<br>
<br>
* gdbserver now shows the float shadow registers as integer<br>
rather than float values, as the shadow values are mostly<br>
used as bit patterns.<br>
<br>
* Increased limit for the --num-callers command line flag to 500.<br>
<br>
* Performance improvements for error matching when there are many<br>
suppression records in use.<br>
<br>
* Improved support for DWARF4 debugging information (bug 284184).<br>
<br>
* Initial support for DWZ compressed Dwarf debug info.<br>
<br>
* Improved control over the IR optimiser's handling of the tradeoff<br>
between performance and precision of exceptions. Specifically,<br>
--vex-iropt-precise-memory-exns has been removed and replaced by<br>
--vex-iropt-register-updates, with extended functionality. This<br>
allows the Valgrind gdbserver to always show up to date register<br>
values to GDB.<br>
<br>
* Modest performance gains through the use of translation chaining for<br>
JIT-generated code.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather<br>
than mailing the developers (or mailing lists) directly -- bugs that<br>
are not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
197914 Building valgrind from svn now requires automake-1.10<br>
203877 increase to 16Mb maximum allowed alignment for memalign et al<br>
219156 Handle statically linked malloc or other malloc lib (e.g. tcmalloc) <br>
247386 make perf does not run all performance tests<br>
270006 Valgrind scheduler unfair <br>
270777 Adding MIPS/Linux port to Valgrind<br>
270796 s390x: Removed broken support for the TS insn<br>
271438 Fix configure for proper SSE4.2 detection<br>
273114 s390x: Support TR, TRE, TROO, TROT, TRTO, and TRTT instructions<br>
273475 Add support for AVX instructions<br>
274078 improved configure logic for mpicc<br>
276993 fix mremap 'no thrash checks' <br>
278313 Fedora 15/x64: err read debug info with --read-var-info=yes flag<br>
281482 memcheck incorrect byte allocation count in realloc() for silly argument<br>
282230 group allocator for small fixed size, use it for MC_Chunk/SEc vbit<br>
283413 Fix wrong sanity check<br>
283671 Robustize alignment computation in LibVEX_Alloc<br>
283961 Adding support for some HCI IOCTLs<br>
284124 parse_type_DIE: confused by: DWARF 4<br>
284864 == 273475 (Add support for AVX instructions)<br>
285219 Too-restrictive constraints for Thumb2 "SP plus/minus register"<br>
285662 (MacOSX): Memcheck needs to replace memcpy/memmove<br>
285725 == 273475 (Add support for AVX instructions)<br>
286261 add wrapper for linux I2C_RDWR ioctl<br>
286270 vgpreload is not friendly to 64->32 bit execs, gives ld.so warnings<br>
286374 Running cachegrind with --branch-sim=yes on 64-bit PowerPC program fails<br>
286384 configure fails "checking for a supported version of gcc"<br>
286497 == 273475 (Add support for AVX instructions)<br>
286596 == 273475 (Add support for AVX instructions)<br>
286917 disInstr(arm): unhandled instruction: QADD (also QSUB)<br>
287175 ARM: scalar VFP fixed-point VCVT instructions not handled<br>
287260 Incorrect conditional jump or move depends on uninitialised value(s)<br>
287301 vex amd64->IR: 0x66 0xF 0x38 0x41 0xC0 0xB8 0x0 0x0 (PHMINPOSUW)<br>
287307 == 273475 (Add support for AVX instructions)<br>
287858 VG_(strerror): unknown error <br>
288298 (MacOSX) unhandled syscall shm_unlink<br>
288995 == 273475 (Add support for AVX instructions)<br>
289470 Loading of large Mach-O thin binaries fails.<br>
289656 == 273475 (Add support for AVX instructions)<br>
289699 vgdb connection in relay mode erroneously closed due to buffer overrun <br>
289823 == 293754 (PCMPxSTRx not implemented for 16-bit characters)<br>
289839 s390x: Provide support for unicode conversion instructions<br>
289939 monitor cmd 'leak_check' with details about leaked or reachable blocks<br>
290006 memcheck doesn't mark %xmm as initialized after "pcmpeqw %xmm %xmm"<br>
290655 Add support for AESKEYGENASSIST instruction <br>
290719 valgrind-3.7.0 fails with automake-1.11.2 due to"pkglibdir" usage<br>
290974 vgdb must align pages to VKI_SHMLBA (16KB) on ARM <br>
291253 ES register not initialised in valgrind simulation<br>
291568 Fix 3DNOW-related crashes with baseline x86_64 CPU (w patch)<br>
291865 s390x: Support the "Compare Double and Swap" family of instructions<br>
292300 == 273475 (Add support for AVX instructions)<br>
292430 unrecognized instruction in __intel_get_new_mem_ops_cpuid<br>
292493 == 273475 (Add support for AVX instructions)<br>
292626 Missing fcntl F_SETOWN_EX and F_GETOWN_EX support<br>
292627 Missing support for some SCSI ioctls<br>
292628 none/tests/x86/bug125959-x86.c triggers undefined behavior<br>
292841 == 273475 (Add support for AVX instructions)<br>
292993 implement the getcpu syscall on amd64-linux<br>
292995 Implement the “cross memory attach” syscalls introduced in Linux 3.2<br>
293088 Add some VEX sanity checks for ppc64 unhandled instructions<br>
293751 == 290655 (Add support for AESKEYGENASSIST instruction)<br>
293754 PCMPxSTRx not implemented for 16-bit characters<br>
293755 == 293754 (No tests for PCMPxSTRx on 16-bit characters)<br>
293808 CLFLUSH not supported by latest VEX for amd64<br>
294047 valgrind does not correctly emulate prlimit64(..., RLIMIT_NOFILE, ...)<br>
294048 MPSADBW instruction not implemented<br>
294055 regtest none/tests/shell fails when locale is not set to C<br>
294185 INT 0x44 (and others) not supported on x86 guest, but used by Jikes RVM<br>
294190 --vgdb-error=xxx can be out of sync with errors shown to the user<br>
294191 amd64: fnsave/frstor and 0x66 size prefixes on FP instructions<br>
294260 disInstr_AMD64: disInstr miscalculated next %rip<br>
294523 --partial-loads-ok=yes causes false negatives<br>
294617 vex amd64->IR: 0x66 0xF 0x3A 0xDF 0xD1 0x1 0xE8 0x6A<br>
294736 vex amd64->IR: 0x48 0xF 0xD7 0xD6 0x48 0x83<br>
294812 patch allowing to run (on x86 at least) helgrind/drd on tool.<br>
295089 can not annotate source for both helgrind and drd<br>
295221 POWER Processor decimal floating point instruction support missing<br>
295427 building for i386 with clang on darwin11 requires "-new_linker linker"<br>
295428 coregrind/m_main.c has incorrect x86 assembly for darwin<br>
295590 Helgrind: Assertion 'cvi->nWaiters > 0' failed<br>
295617 ARM - Add some missing syscalls<br>
295799 Missing \n with get_vbits in gdbserver when line is % 80 [...]<br>
296229 Linux user input device ioctls missing wrappers<br>
296318 ELF Debug info improvements (more than one rx/rw mapping)<br>
296422 Add translation chaining support<br>
296457 vex amd64->IR: 0x66 0xF 0x3A 0xDF 0xD1 0x1 0xE8 0x6A (dup of AES)<br>
296792 valgrind 3.7.0: add SIOCSHWTSTAMP (0x89B0) ioctl wrapper<br>
296983 Fix build issues on x86_64/ppc64 without 32-bit toolchains<br>
297078 gdbserver signal handling problems [..]<br>
297147 drd false positives on newly allocated memory<br>
297329 disallow decoding of IBM Power DFP insns on some machines<br>
297497 POWER Processor decimal floating point instruction support missing<br>
297701 Another alias for strncasecmp_l in libc-2.13.so<br>
297911 'invalid write' not reported when using APIs for custom mem allocators.<br>
297976 s390x: revisit EX implementation<br>
297991 Valgrind interferes with mmap()+ftell() <br>
297992 Support systems missing WIFCONTINUED (e.g. pre-2.6.10 Linux) <br>
297993 Fix compilation of valgrind with gcc -g3.<br>
298080 POWER Processor DFP support missing, part 3<br>
298227 == 273475 (Add support for AVX instructions)<br>
298335 == 273475 (Add support for AVX instructions)<br>
298354 Unhandled ARM Thumb instruction 0xEB0D 0x0585 (streq)<br>
298394 s390x: Don't bail out on an unknown machine model. [..]<br>
298421 accept4() syscall (366) support is missing for ARM<br>
298718 vex amd64->IR: 0xF 0xB1 0xCB 0x9C 0x8F 0x45<br>
298732 valgrind installation problem in ubuntu with kernel version 3.x<br>
298862 POWER Processor DFP instruction support missing, part 4<br>
298864 DWARF reader mis-parses DW_FORM_ref_addr<br>
298943 massif asserts with --pages-as-heap=yes when brk is changing [..]<br>
299053 Support DWARF4 DW_AT_high_pc constant form<br>
299104 == 273475 (Add support for AVX instructions)<br>
299316 Helgrind: hg_main.c:628 (map_threads_lookup): Assertion 'thr' failed.<br>
299629 dup3() syscall (358) support is missing for ARM<br>
299694 POWER Processor DFP instruction support missing, part 5<br>
299756 Ignore --free-fill for MEMPOOL_FREE and FREELIKE client requests<br>
299803 == 273475 (Add support for AVX instructions)<br>
299804 == 273475 (Add support for AVX instructions)<br>
299805 == 273475 (Add support for AVX instructions)<br>
300140 ARM - Missing (T1) SMMUL<br>
300195 == 296318 (ELF Debug info improvements (more than one rx/rw mapping))<br>
300389 Assertion `are_valid_hwcaps(VexArchAMD64, [..])' failed.<br>
300414 FCOM and FCOMP unimplemented for amd64 guest<br>
301204 infinite loop in canonicaliseSymtab with ifunc symbol<br>
301229 == 203877 (increase to 16Mb maximum allowed alignment for memalign etc)<br>
301265 add x86 support to Android build <br>
301984 configure script doesn't detect certain versions of clang<br>
302205 Fix compiler warnings for POWER VEX code and POWER test cases<br>
302287 Unhandled movbe instruction on Atom processors<br>
302370 PPC: fnmadd, fnmsub, fnmadds, fnmsubs insns always negate the result<br>
302536 Fix for the POWER Valgrind regression test: memcheck-ISA2.0.<br>
302578 Unrecognized isntruction 0xc5 0x32 0xc2 0xca 0x09 vcmpngess<br>
302656 == 273475 (Add support for AVX instructions)<br>
302709 valgrind for ARM needs extra tls support for android emulator [..]<br>
302827 add wrapper for CDROM_GET_CAPABILITY<br>
302901 Valgrind crashes with dwz optimized debuginfo<br>
302918 Enable testing of the vmaddfp and vnsubfp instructions in the testsuite<br>
303116 Add support for the POWER instruction popcntb<br>
303127 Power test suite fixes for frsqrte, vrefp, and vrsqrtefp instructions.<br>
303250 Assertion `instrs_in->arr_used <= 10000' failed w/ OpenSSL code<br>
303466 == 273475 (Add support for AVX instructions)<br>
303624 segmentation fault on Android 4.1 (e.g. on Galaxy Nexus OMAP) <br>
303963 strstr() function produces wrong results under valgrind callgrind<br>
304054 CALL_FN_xx macros need to enforce stack alignment<br>
304561 tee system call not supported<br>
715750 (MacOSX): Incorrect invalid-address errors near 0xFFFFxxxx (mozbug#)<br>
n-i-bz Add missing gdbserver xml files for shadow registers for ppc32<br>
n-i-bz Bypass gcc4.4/4.5 code gen bugs causing out of memory or asserts<br>
n-i-bz Fix assert in gdbserver for watchpoints watching the same address<br>
n-i-bz Fix false positive in sys_clone on amd64 when optional args [..]<br>
n-i-bz s390x: Shadow registers can now be examined using vgdb<br>
<br>
(3.8.0-TEST3: 9 August 2012, vex r2465, valgrind r12865)<br>
(3.8.0: 10 August 2012, vex r2465, valgrind r12866)<br>
<br>
<br>
<br>
Release 3.7.0 (5 November 2011)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.7.0 is a feature release with many significant improvements and the<br>
usual collection of bug fixes.<br>
<br>
This release supports X86/Linux, AMD64/Linux, ARM/Linux, PPC32/Linux,<br>
PPC64/Linux, S390X/Linux, ARM/Android, X86/Darwin and AMD64/Darwin.<br>
Support for recent distros and toolchain components (glibc 2.14, gcc<br>
4.6, MacOSX 10.7) has been added.<br>
<br>
* ================== PLATFORM CHANGES =================<br>
<br>
* Support for IBM z/Architecture (s390x) running Linux. Valgrind can<br>
analyse 64-bit programs running on z/Architecture. Most user space<br>
instructions up to and including z10 are supported. Valgrind has<br>
been tested extensively on z9, z10, and z196 machines running SLES<br>
10/11, RedHat 5/6m, and Fedora. The Memcheck and Massif tools are<br>
known to work well. Callgrind, Helgrind, and DRD work reasonably<br>
well on z9 and later models. See README.s390 for more details.<br>
<br>
* Preliminary support for MacOSX 10.7 and XCode 4. Both 32- and<br>
64-bit processes are supported. Some complex threaded applications<br>
(Firefox) are observed to hang when run as 32 bit applications,<br>
whereas 64-bit versions run OK. The cause is unknown. Memcheck<br>
will likely report some false errors. In general, expect some rough<br>
spots. This release also supports MacOSX 10.6, but drops support<br>
for 10.5.<br>
<br>
* Preliminary support for Android (on ARM). Valgrind can now run<br>
large applications (eg, Firefox) on (eg) a Samsung Nexus S. See<br>
README.android for more details, plus instructions on how to get<br>
started.<br>
<br>
* Support for the IBM Power ISA 2.06 (Power7 instructions)<br>
<br>
* General correctness and performance improvements for ARM/Linux, and,<br>
by extension, ARM/Android.<br>
<br>
* Further solidification of support for SSE 4.2 in 64-bit mode. AVX<br>
instruction set support is under development but is not available in<br>
this release.<br>
<br>
* Support for AIX5 has been removed.<br>
<br>
* ==================== TOOL CHANGES ====================<br>
<br>
* Memcheck: some incremental changes:<br>
<br>
- reduction of memory use in some circumstances<br>
<br>
- improved handling of freed memory, which in some circumstances <br>
can cause detection of use-after-free that would previously have<br>
been missed<br>
<br>
- fix of a longstanding bug that could cause false negatives (missed<br>
errors) in programs doing vector saturated narrowing instructions.<br>
<br>
* Helgrind: performance improvements and major memory use reductions,<br>
particularly for large, long running applications which perform many<br>
synchronisation (lock, unlock, etc) events. Plus many smaller<br>
changes:<br>
<br>
- display of locksets for both threads involved in a race<br>
<br>
- general improvements in formatting/clarity of error messages<br>
<br>
- addition of facilities and documentation regarding annotation<br>
of thread safe reference counted C++ classes<br>
<br>
- new flag --check-stack-refs=no|yes [yes], to disable race checking<br>
on thread stacks (a performance hack)<br>
<br>
- new flag --free-is-write=no|yes [no], to enable detection of races<br>
where one thread accesses heap memory but another one frees it,<br>
without any coordinating synchronisation event<br>
<br>
* DRD: enabled XML output; added support for delayed thread deletion<br>
in order to detect races that occur close to the end of a thread<br>
(--join-list-vol); fixed a memory leak triggered by repeated client<br>
memory allocatation and deallocation; improved Darwin support.<br>
<br>
* exp-ptrcheck: this tool has been renamed to exp-sgcheck<br>
<br>
* exp-sgcheck: this tool has been reduced in scope so as to improve<br>
performance and remove checking that Memcheck does better.<br>
Specifically, the ability to check for overruns for stack and global<br>
arrays is unchanged, but the ability to check for overruns of heap<br>
blocks has been removed. The tool has accordingly been renamed to<br>
exp-sgcheck ("Stack and Global Array Checking").<br>
<br>
* ==================== OTHER CHANGES ====================<br>
<br>
* GDB server: Valgrind now has an embedded GDB server. That means it<br>
is possible to control a Valgrind run from GDB, doing all the usual<br>
things that GDB can do (single stepping, breakpoints, examining<br>
data, etc). Tool-specific functionality is also available. For<br>
example, it is possible to query the definedness state of variables<br>
or memory from within GDB when running Memcheck; arbitrarily large<br>
memory watchpoints are supported, etc. To use the GDB server, start<br>
Valgrind with the flag --vgdb-error=0 and follow the on-screen<br>
instructions.<br>
<br>
* Improved support for unfriendly self-modifying code: a new option<br>
--smc-check=all-non-file is available. This adds the relevant<br>
consistency checks only to code that originates in non-file-backed<br>
mappings. In effect this confines the consistency checking only to<br>
code that is or might be JIT generated, and avoids checks on code<br>
that must have been compiled ahead of time. This significantly<br>
improves performance on applications that generate code at run time.<br>
<br>
* It is now possible to build a working Valgrind using Clang-2.9 on<br>
Linux.<br>
<br>
* new client requests VALGRIND_{DISABLE,ENABLE}_ERROR_REPORTING.<br>
These enable and disable error reporting on a per-thread, and<br>
nestable, basis. This is useful for hiding errors in particularly<br>
troublesome pieces of code. The MPI wrapper library (libmpiwrap.c)<br>
now uses this facility.<br>
<br>
* Added the --mod-funcname option to cg_diff.<br>
<br>
* ==================== FIXED BUGS ====================<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (http://bugs.kde.org/enter_valgrind_bug.cgi) rather than<br>
mailing the developers (or mailing lists) directly -- bugs that are<br>
not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
79311 malloc silly arg warning does not give stack trace<br>
210935 port valgrind.h (not valgrind) to win32 to support client requests<br>
214223 valgrind SIGSEGV on startup gcc 4.4.1 ppc32 (G4) Ubuntu 9.10<br>
243404 Port to zSeries<br>
243935 Helgrind: incorrect handling of ANNOTATE_HAPPENS_BEFORE()/AFTER()<br>
247223 non-x86: Suppress warning: 'regparm' attribute directive ignored<br>
250101 huge "free" memory usage due to m_mallocfree.c fragmentation<br>
253206 Some fixes for the faultstatus testcase<br>
255223 capget testcase fails when running as root<br>
256703 xlc_dbl_u32.c testcase broken<br>
256726 Helgrind tests have broken inline asm <br>
259977 == 214223 (Valgrind segfaults doing __builtin_longjmp)<br>
264800 testcase compile failure on zseries<br>
265762 make public VEX headers compilable by G++ 3.x<br>
265771 assertion in jumps.c (r11523) fails with glibc-2.3<br>
266753 configure script does not give the user the option to not use QtCore<br>
266931 gen_insn_test.pl is broken<br>
266961 ld-linux.so.2 i?86-linux strlen issues<br>
266990 setns instruction causes false positive<br>
267020 Make directory for temporary files configurable at run-time.<br>
267342 == 267997 (segmentation fault on Mac OS 10.6)<br>
267383 Assertion 'vgPlain_strlen(dir) + vgPlain_strlen(file) + 1 < 256' failed<br>
267413 Assertion 'DRD_(g_threadinfo)[tid].synchr_nesting >= 1' failed.<br>
267488 regtest: darwin support for 64-bit build<br>
267552 SIGSEGV (misaligned_stack_error) with DRD, but not with other tools<br>
267630 Add support for IBM Power ISA 2.06 -- stage 1<br>
267769 == 267997 (Darwin: memcheck triggers segmentation fault)<br>
267819 Add client request for informing the core about reallocation<br>
267925 laog data structure quadratic for a single sequence of lock<br>
267968 drd: (vgDrd_thread_set_joinable): Assertion '0 <= (int)tid ..' failed<br>
267997 MacOSX: 64-bit V segfaults on launch when built with Xcode 4.0.1<br>
268513 missed optimizations in fold_Expr<br>
268619 s390x: fpr - gpr transfer facility <br>
268620 s390x: reconsider "long displacement" requirement <br>
268621 s390x: improve IR generation for XC<br>
268715 s390x: FLOGR is not universally available<br>
268792 == 267997 (valgrind seg faults on startup when compiled with Xcode 4)<br>
268930 s390x: MHY is not universally available<br>
269078 arm->IR: unhandled instruction SUB (SP minus immediate/register) <br>
269079 Support ptrace system call on ARM<br>
269144 missing "Bad option" error message<br>
269209 conditional load and store facility (z196)<br>
269354 Shift by zero on x86 can incorrectly clobber CC_NDEP<br>
269641 == 267997 (valgrind segfaults immediately (segmentation fault))<br>
269736 s390x: minor code generation tweaks<br>
269778 == 272986 (valgrind.h: swap roles of VALGRIND_DO_CLIENT_REQUEST() ..)<br>
269863 s390x: remove unused function parameters<br>
269864 s390x: tweak s390_emit_load_cc <br>
269884 == 250101 (overhead for huge blocks exhausts space too soon)<br>
270082 s390x: Make sure to point the PSW address to the next address on SIGILL<br>
270115 s390x: rewrite some testcases<br>
270309 == 267997 (valgrind crash on startup)<br>
270320 add support for Linux FIOQSIZE ioctl() call<br>
270326 segfault while trying to sanitize the environment passed to execle<br>
270794 IBM POWER7 support patch causes regression in none/tests<br>
270851 IBM POWER7 fcfidus instruction causes memcheck to fail<br>
270856 IBM POWER7 xsnmaddadp instruction causes memcheck to fail on 32bit app <br>
270925 hyper-optimized strspn() in /lib64/libc-2.13.so needs fix<br>
270959 s390x: invalid use of R0 as base register<br>
271042 VSX configure check fails when it should not <br>
271043 Valgrind build fails with assembler error on ppc64 with binutils 2.21 <br>
271259 s390x: fix code confusion <br>
271337 == 267997 (Valgrind segfaults on MacOS X)<br>
271385 s390x: Implement Ist_MBE <br>
271501 s390x: misc cleanups <br>
271504 s390x: promote likely and unlikely <br>
271579 ppc: using wrong enum type <br>
271615 unhandled instruction "popcnt" (arch=amd10h) <br>
271730 Fix bug when checking ioctls: duplicate check <br>
271776 s390x: provide STFLE instruction support <br>
271779 s390x: provide clock instructions like STCK <br>
271799 Darwin: ioctls without an arg report a memory error <br>
271820 arm: fix type confusion <br>
271917 pthread_cond_timedwait failure leads to not-locked false positive <br>
272067 s390x: fix DISP20 macro <br>
272615 A typo in debug output in mc_leakcheck.c<br>
272661 callgrind_annotate chokes when run from paths containing regex chars<br>
272893 amd64->IR: 0x66 0xF 0x38 0x2B 0xC1 0x66 0xF 0x7F == (closed as dup)<br>
272955 Unhandled syscall error for pwrite64 on ppc64 arch <br>
272967 make documentation build-system more robust <br>
272986 Fix gcc-4.6 warnings with valgrind.h<br>
273318 amd64->IR: 0x66 0xF 0x3A 0x61 0xC1 0x38 (missing PCMPxSTRx case)<br>
273318 unhandled PCMPxSTRx case: vex amd64->IR: 0x66 0xF 0x3A 0x61 0xC1 0x38 <br>
273431 valgrind segfaults in evalCfiExpr (debuginfo.c:2039)<br>
273465 Callgrind: jumps.c:164 (new_jcc): Assertion '(0 <= jmp) && ...'<br>
273536 Build error: multiple definition of `vgDrd_pthread_cond_initializer'<br>
273640 ppc64-linux: unhandled syscalls setresuid(164) and setresgid(169)<br>
273729 == 283000 (Illegal opcode for SSE2 "roundsd" instruction)<br>
273778 exp-ptrcheck: unhandled sysno == 259<br>
274089 exp-ptrcheck: unhandled sysno == 208<br>
274378 s390x: Various dispatcher tweaks<br>
274447 WARNING: unhandled syscall: 340<br>
274776 amd64->IR: 0x66 0xF 0x38 0x2B 0xC5 0x66<br>
274784 == 267997 (valgrind ls -l results in Segmentation Fault)<br>
274926 valgrind does not build against linux-3<br>
275148 configure FAIL with glibc-2.14<br>
275151 Fedora 15 / glibc-2.14 'make regtest' FAIL<br>
275168 Make Valgrind work for MacOSX 10.7 Lion<br>
275212 == 275284 (lots of false positives from __memcpy_ssse3_back et al)<br>
275278 valgrind does not build on Linux kernel 3.0.* due to silly<br>
275284 Valgrind memcpy/memmove redirection stopped working in glibc 2.14/x86_64<br>
275308 Fix implementation for ppc64 fres instruc<br>
275339 s390x: fix testcase compile warnings<br>
275517 s390x: Provide support for CKSM instruction<br>
275710 s390x: get rid of redundant address mode calculation<br>
275815 == 247894 (Valgrind doesn't know about Linux readahead(2) syscall)<br>
275852 == 250101 (valgrind uses all swap space and is killed)<br>
276784 Add support for IBM Power ISA 2.06 -- stage 3<br>
276987 gdbsrv: fix tests following recent commits<br>
277045 Valgrind crashes with unhandled DW_OP_ opcode 0x2a<br>
277199 The test_isa_2_06_part1.c in none/tests/ppc64 should be a symlink<br>
277471 Unhandled syscall: 340<br>
277610 valgrind crashes in VG_(lseek)(core_fd, phdrs[idx].p_offset, ...)<br>
277653 ARM: support Thumb2 PLD instruction<br>
277663 ARM: NEON float VMUL by scalar incorrect<br>
277689 ARM: tests for VSTn with register post-index are broken<br>
277694 ARM: BLX LR instruction broken in ARM mode<br>
277780 ARM: VMOV.F32 (immediate) instruction is broken<br>
278057 fuse filesystem syscall deadlocks<br>
278078 Unimplemented syscall 280 on ppc32<br>
278349 F_GETPIPE_SZ and F_SETPIPE_SZ Linux fcntl commands<br>
278454 VALGRIND_STACK_DEREGISTER has wrong output type<br>
278502 == 275284 (Valgrind confuses memcpy() and memmove())<br>
278892 gdbsrv: factorize gdb version handling, fix doc and typos<br>
279027 Support for MVCL and CLCL instruction<br>
279027 s390x: Provide support for CLCL and MVCL instructions<br>
279062 Remove a redundant check in the insn selector for ppc.<br>
279071 JDK creates PTEST with redundant REX.W prefix<br>
279212 gdbsrv: add monitor cmd v.info scheduler.<br>
279378 exp-ptrcheck: the 'impossible' happened on mkfifo call<br>
279698 memcheck discards valid-bits for packuswb<br>
279795 memcheck reports uninitialised values for mincore on amd64<br>
279994 Add support for IBM Power ISA 2.06 -- stage 3<br>
280083 mempolicy syscall check errors<br>
280290 vex amd64->IR: 0x66 0xF 0x38 0x28 0xC1 0x66 0xF 0x6F<br>
280710 s390x: config files for nightly builds<br>
280757 /tmp dir still used by valgrind even if TMPDIR is specified<br>
280965 Valgrind breaks fcntl locks when program does mmap<br>
281138 WARNING: unhandled syscall: 340<br>
281241 == 275168 (valgrind useless on Macos 10.7.1 Lion)<br>
281304 == 275168 (Darwin: dyld "cannot load inserted library")<br>
281305 == 275168 (unhandled syscall: unix:357 on Darwin 11.1)<br>
281468 s390x: handle do_clone and gcc clones in call traces<br>
281488 ARM: VFP register corruption<br>
281828 == 275284 (false memmove warning: "Source and destination overlap")<br>
281883 s390x: Fix system call wrapper for "clone".<br>
282105 generalise 'reclaimSuperBlock' to also reclaim splittable superblock<br>
282112 Unhandled instruction bytes: 0xDE 0xD9 0x9B 0xDF (fcompp)<br>
282238 SLES10: make check fails<br>
282979 strcasestr needs replacement with recent(>=2.12) glibc<br>
283000 vex amd64->IR: 0x66 0xF 0x3A 0xA 0xC0 0x9 0xF3 0xF<br>
283243 Regression in ppc64 memcheck tests<br>
283325 == 267997 (Darwin: V segfaults on startup when built with Xcode 4.0)<br>
283427 re-connect epoll_pwait syscall on ARM linux<br>
283600 gdbsrv: android: port vgdb.c<br>
283709 none/tests/faultstatus needs to account for page size<br>
284305 filter_gdb needs enhancement to work on ppc64<br>
284384 clang 3.1 -Wunused-value warnings in valgrind.h, memcheck.h<br>
284472 Thumb2 ROR.W encoding T2 not implemented<br>
284621 XML-escape process command line in XML output<br>
n-i-bz cachegrind/callgrind: handle CPUID information for Core iX Intel CPUs<br>
that have non-power-of-2 sizes (also AMDs)<br>
n-i-bz don't be spooked by libraries mashed by elfhack<br>
n-i-bz don't be spooked by libxul.so linked with gold<br>
n-i-bz improved checking for VALGRIND_CHECK_MEM_IS_DEFINED<br>
<br>
(3.7.0-TEST1: 27 October 2011, vex r2228, valgrind r12245)<br>
(3.7.0.RC1: 1 November 2011, vex r2231, valgrind r12257)<br>
(3.7.0: 5 November 2011, vex r2231, valgrind r12258)<br>
<br>
<br>
<br>
Release 3.6.1 (16 February 2011)<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
3.6.1 is a bug fix release. It adds support for some SSE4<br>
instructions that were omitted in 3.6.0 due to lack of time. Initial<br>
support for glibc-2.13 has been added. A number of bugs causing<br>
crashing or assertion failures have been fixed.<br>
<br>
The following bugs have been fixed or resolved. Note that "n-i-bz"<br>
stands for "not in bugzilla" -- that is, a bug that was reported to us<br>
but never got a bugzilla entry. We encourage you to file bugs in<br>
bugzilla (http://bugs.kde.org/enter_valgrind_bug.cgi) rather than<br>
mailing the developers (or mailing lists) directly -- bugs that are<br>
not entered into bugzilla tend to get forgotten about or ignored.<br>
<br>
To see details of a given bug, visit<br>
https://bugs.kde.org/show_bug.cgi?id=XXXXXX<br>
where XXXXXX is the bug number as listed below.<br>
<br>
188572 Valgrind on Mac should suppress setenv() mem leak<br>
194402 vex amd64->IR: 0x48 0xF 0xAE 0x4 (proper FX{SAVE,RSTOR} support)<br>
210481 vex amd64->IR: Assertion `sz == 2 || sz == 4' failed (REX.W POPQ)<br>
246152 callgrind internal error after pthread_cancel on 32 Bit Linux<br>
250038 ppc64: Altivec LVSR and LVSL instructions fail their regtest<br>
254420 memory pool tracking broken <br>
254957 Test code failing to compile due to changes in memcheck.h<br>
255009 helgrind/drd: crash on chmod with invalid parameter<br>
255130 readdwarf3.c parse_type_DIE confused by GNAT Ada types<br>
255355 helgrind/drd: crash on threaded programs doing fork<br>
255358 == 255355<br>
255418 (SSE4.x) rint call compiled with ICC<br>
255822 --gen-suppressions can create invalid files: "too many callers [...]"<br>
255888 closing valgrindoutput tag outputted to log-stream on error<br>
255963 (SSE4.x) vex amd64->IR: 0x66 0xF 0x3A 0x9 0xDB 0x0 (ROUNDPD)<br>
255966 Slowness when using mempool annotations<br>
256387 vex x86->IR: 0xD4 0xA 0x2 0x7 (AAD and AAM)<br>
256600 super-optimized strcasecmp() false positive<br>
256669 vex amd64->IR: Unhandled LOOPNEL insn on amd64<br>
256968 (SSE4.x) vex amd64->IR: 0x66 0xF 0x38 0x10 0xD3 0x66 (BLENDVPx)<br>
257011 (SSE4.x) vex amd64->IR: 0x66 0xF 0x3A 0xE 0xFD 0xA0 (PBLENDW)<br>
257063 (SSE4.x) vex amd64->IR: 0x66 0xF 0x3A 0x8 0xC0 0x0 (ROUNDPS)<br>
257276 Missing case in memcheck --track-origins=yes<br>
258870 (SSE4.x) Add support for EXTRACTPS SSE 4.1 instruction<br>
261966 (SSE4.x) support for CRC32B and CRC32Q is lacking (also CRC32{W,L})<br>
262985 VEX regression in valgrind 3.6.0 in handling PowerPC VMX<br>
262995 (SSE4.x) crash when trying to valgrind gcc-snapshot (PCMPxSTRx $0)<br>
263099 callgrind_annotate counts Ir improperly [...]<br>
263877 undefined coprocessor instruction on ARMv7<br>
265964 configure FAIL with glibc-2.13<br>
n-i-bz Fix compile error w/ icc-12.x in guest_arm_toIR.c<br>
n-i-bz Docs: fix bogus descriptions for VALGRIND_CREATE_BLOCK et al<br>
n-i-bz Massif: don't assert on shmat() with --pages-as-heap=yes<br>
n-i-bz Bug fixes and major speedups for the exp-DHAT space profiler<br>
n-i-bz DRD: disable --free-is-write due to implementation difficulties<br>
<br>
(3.6.1: 16 February 2011, vex r2103, valgrind r11561).<br>
<br>
<br>
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