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Release 3.12.0 (20 October 2016)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.12.0 is a feature release with many improvements and the usual
collection of bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for
X86/MacOSX 10.11/12, AMD64/MacOSX 10.11/12 and TILEGX/Linux.
* ================== PLATFORM CHANGES =================
* POWER: Support for ISA 3.0 has been added
* mips: support for O32 FPXX ABI has been added.
* mips: improved recognition of different processors
* mips: determination of page size now done at run time
* amd64: Partial support for AMD FMA4 instructions.
* arm, arm64: Support for v8 crypto and CRC instructions.
* Improvements and robustification of the Solaris port.
* Preliminary support for MacOS 10.12 (Sierra) has been added.
Whilst 3.12.0 continues to support the 32-bit x86 instruction set, we
would prefer users to migrate to 64-bit x86 (a.k.a amd64 or x86_64)
where possible. Valgrind's support for 32-bit x86 has stagnated in
recent years and has fallen far behind that for 64-bit x86
instructions. By contrast 64-bit x86 is well supported, up to and
including AVX2.
* ==================== TOOL CHANGES ====================
* Memcheck:
- Added meta mempool support for describing a custom allocator which:
- Auto-frees all chunks assuming that destroying a pool destroys all
objects in the pool
- Uses itself to allocate other memory blocks
- New flag --ignore-range-below-sp to ignore memory accesses below
the stack pointer, if you really have to. The related flag
--workaround-gcc296-bugs=yes is now deprecated. Use
--ignore-range-below-sp=1024-1 as a replacement.
* DRD:
- Improved thread startup time significantly on non-Linux platforms.
* DHAT
- Added collection of the metric "tot-blocks-allocd"
* ==================== OTHER CHANGES ====================
* Replacement/wrapping of malloc/new related functions is now done not just
for system libraries by default, but for any globally defined malloc/new
related function (both in shared libraries and statically linked alternative
malloc implementations). The dynamic (runtime) linker is excluded, though.
To only intercept malloc/new related functions in
system libraries use --soname-synonyms=somalloc=nouserintercepts (where
"nouserintercepts" can be any non-existing library name).
This new functionality is not implemented for MacOS X.
* The maximum number of callers in a suppression entry is now equal to
the maximum size for --num-callers (500).
Note that --gen-suppressions=yes|all similarly generates suppressions
containing up to --num-callers frames.
* New and modified GDB server monitor features:
- Valgrind's gdbserver now accepts the command 'catch syscall'.
Note that you must have GDB >= 7.11 to use 'catch syscall' with
gdbserver.
* New option --run-cxx-freeres=<yes|no> can be used to change whether
__gnu_cxx::__freeres() cleanup function is called or not. Default is
'yes'.
* Valgrind is able to read compressed debuginfo sections in two formats:
- zlib ELF gABI format with SHF_COMPRESSED flag (gcc option -gz=zlib)
- zlib GNU format with .zdebug sections (gcc option -gz=zlib-gnu)
* Modest JIT-cost improvements: the cost of instrumenting code blocks
for the most common use case (x86_64-linux, Memcheck) has been
reduced by 10%-15%.
* Improved performance for programs that do a lot of discarding of
instruction address ranges of 8KB or less.
* The C++ symbol demangler has been updated.
* More robustness against invalid syscall parameters on Linux.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
191069 Exiting due to signal not reported in XML output
199468 Suppressions: stack size limited to 25
while --num-callers allows more frames
212352 vex amd64 unhandled opc_aux = 0x 2, first_opcode == 0xDC (FCOM)
278744 cvtps2pd with redundant RexW
303877 valgrind doesn't support compressed debuginfo sections.
345307 Warning about "still reachable" memory when using libstdc++ from gcc 5
348345 Assertion fails for negative lineno
351282 V 3.10.1 MIPS softfloat build broken with GCC 4.9.3 / binutils 2.25.1
351692 Dumps created by valgrind are not readable by gdb (mips32 specific)
351804 Crash on generating suppressions for "printf" call on OS X 10.10
352197 mips: mmap2() not wrapped correctly for page size > 4096
353083 arm64 doesn't implement various xattr system calls
353084 arm64 doesn't support sigpending system call
353137 www: update info for Supported Platforms
353138 www: update "The Valgrind Developers" page
353370 don't advertise RDRAND in cpuid for Core-i7-4910-like avx2 machine
== 365325
== 357873
353384 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x62 (pcmpXstrX $0x62)
353398 WARNING: unhandled amd64-solaris syscall: 207
353660 XML in auxwhat tag not escaping reserved symbols properly
353680 s390x: Crash with certain glibc versions due to non-implemented TBEGIN
353727 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x72 (pcmpXstrX $0x72)
353802 ELF debug info reader confused with multiple .rodata sections
353891 Assert 'bad_scanned_addr < VG_ROUNDDN(start+len, sizeof(Addr))' failed
353917 unhandled amd64-solaris syscall fchdir(120)
353920 unhandled amd64-solaris syscall: 170
354274 arm: unhandled instruction: 0xEBAD 0x0AC1 (sub.w sl, sp, r1, lsl #3)
354392 unhandled amd64-solaris syscall: 171
354797 Vbit test does not include Iops for Power 8 instruction support
354883 tst->os_state.pthread - magic_delta assertion failure on OSX 10.11
== 361351
== 362920
== 366222
354933 Fix documentation of --kernel-variant=android-no-hw-tls option
355188 valgrind should intercept all malloc related global functions
355454 do not intercept malloc related symbols from the runtime linker
355455 stderr.exp of test cases wrapmalloc and wrapmallocstatic overconstrained
356044 Dwarf line info reader misinterprets is_stmt register
356112 mips: replace addi with addiu
356393 valgrind (vex) crashes because isZeroU happened
== 363497
== 364497
356676 arm64-linux: unhandled syscalls 125, 126 (sched_get_priority_max/min)
356678 arm64-linux: unhandled syscall 232 (mincore)
356817 valgrind.h triggers compiler errors on MSVC when defining NVALGRIND
356823 Unsupported ARM instruction: stlex
357059 x86/amd64: SSE cvtpi2ps with memory source does transition to MMX state
357338 Unhandled instruction for SHA instructions libcrypto Boring SSL
357673 crash if I try to run valgrind with a binary link with libcurl
357833 Setting RLIMIT_DATA to zero breaks with linux 4.5+
357871 pthread_spin_destroy not properly wrapped
357887 Calls to VG_(fclose) do not close the file descriptor
357932 amd64->IR: accept redundant REX prefixes for {minsd,maxsd} m128, xmm.
358030 support direct socket calls on x86 32bit (new in linux 4.3)
358478 drd/tests/std_thread.cpp doesn't build with GCC6
359133 Assertion 'eltSzB <= ddpa->poolSzB' failed
359181 Buffer Overflow during Demangling
359201 futex syscall "skips" argument 5 if op is FUTEX_WAIT_BITSET
359289 s390x: popcnt (B9E1) not implemented
359472 The Power PC vsubuqm instruction doesn't always give the correct result
359503 Add missing syscalls for aarch64 (arm64)
359645 "You need libc6-dbg" help message could be more helpful
359703 s390: wire up separate socketcalls system calls
359724 getsockname might crash - deref_UInt should call safe_to_deref
359733 amd64 implement ld.so strchr/index override like x86
359767 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 1/5
359829 Power PC test suite none/tests/ppc64/test_isa_2_07.c uses
uninitialized data
359838 arm64: Unhandled instruction 0xD5033F5F (clrex)
359871 Incorrect mask handling in ppoll
359952 Unrecognised PCMPESTRM variants (0x70, 0x19)
360008 Contents of Power vr registers contents is not printed correctly when
the --vgdb-shadow-registers=yes option is used
360035 POWER PC instruction bcdadd and bcdsubtract generate result with
non-zero shadow bits
360378 arm64: Unhandled instruction 0x5E280844 (sha1h s4, s2)
360425 arm64 unsupported instruction ldpsw
== 364435
360519 none/tests/arm64/memory.vgtest might fail with newer gcc
360571 Error about the Android Runtime reading below the stack pointer on ARM
360574 Wrong parameter type for an ashmem ioctl() call on Android and ARM64
360749 kludge for multiple .rodata sections on Solaris no longer needed
360752 raise the number of reserved fds in m_main.c from 10 to 12
361207 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 2/5
361226 s390x: risbgn (EC59) not implemented
361253 [s390x] ex_clone.c:42: undefined reference to `pthread_create'
361354 ppc64[le]: wire up separate socketcalls system calls
361615 Inconsistent termination for multithreaded process terminated by signal
361926 Unhandled Solaris syscall: sysfs(84)
362009 V dumps core on unimplemented functionality before threads are created
362329 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 3/5
362894 missing (broken) support for wbit field on mtfsfi instruction (ppc64)
362935 [AsusWRT] Assertion 'sizeof(TTEntryC) <= 88' failed
362953 Request for an update to the Valgrind Developers page
363680 add renameat2() support
363705 arm64 missing syscall name_to_handle_at and open_by_handle_at
363714 ppc64 missing syscalls sync, waitid and name_to/open_by_handle_at
363858 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 4/5
364058 clarify in manual limitations of array overruns detections
364413 pselect sycallwrapper mishandles NULL sigmask
364728 Power PC, missing support for several HW registers in
get_otrack_shadow_offset_wrk()
364948 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 5/5
365273 Invalid write to stack location reported after signal handler runs
365912 ppc64BE segfault during jm-insns test (RELRO)
366079 FPXX Support for MIPS32 Valgrind
366138 Fix configure errors out when using Xcode 8 (clang 8.0.0)
366344 Multiple unhandled instruction for Aarch64
(0x0EE0E020, 0x1AC15800, 0x4E284801, 0x5E040023, 0x5E056060)
367995 Integration of memcheck with custom memory allocator
368120 x86_linux asm _start functions do not keep 16-byte aligned stack pointer
368412 False positive result for altivec capability check
368416 Add tc06_two_races_xml.exp output for ppc64
368419 Perf Events ioctls not implemented
368461 mmapunmap test fails on ppc64
368823 run_a_thread_NORETURN assembly code typo for VGP_arm64_linux target
369000 AMD64 fma4 instructions unsupported.
369169 ppc64 fails jm_int_isa_2_07 test
369175 jm_vec_isa_2_07 test crashes on ppc64
369209 valgrind loops and eats up all memory if cwd doesn't exist.
369356 pre_mem_read_sockaddr syscall wrapper can crash with bad sockaddr
369359 msghdr_foreachfield can crash when handling bad iovec
369360 Bad sigprocmask old or new sets can crash valgrind
369361 vmsplice syscall wrapper crashes on bad iovec
369362 Bad sigaction arguments crash valgrind
369383 x86 sys_modify_ldt wrapper crashes on bad ptr
369402 Bad set/get_thread_area pointer crashes valgrind
369441 bad lvec argument crashes process_vm_readv/writev syscall wrappers
369446 valgrind crashes on unknown fcntl command
369439 S390x: Unhandled insns RISBLG/RISBHG and LDE/LDER
369468 Remove quadratic metapool algorithm using VG_(HT_remove_at_Iter)
370265 ISA 3.0 HW cap stuff needs updating
371128 BCD add and subtract instructions on Power BE in 32-bit mode do not work
n-i-bz Fix incorrect (or infinite loop) unwind on RHEL7 x86 and amd64
n-i-bz massif --pages-as-heap=yes does not report peak caused by mmap+munmap
n-i-bz false positive leaks due to aspacemgr merging heap & non heap segments
n-i-bz Fix ppoll_alarm exclusion on OS X
n-i-bz Document brk segment limitation, reference manual in limit reached msg.
n-i-bz Fix clobber list in none/tests/amd64/xacq_xrel.c [valgrind r15737]
n-i-bz Bump allowed shift value for "add.w reg, sp, reg, lsl #N" [vex r3206]
n-i-bz amd64: memcheck false positive with shr %edx
n-i-bz arm3: Allow early writeback of SP base register in "strd rD, [sp, #-16]"
n-i-bz ppc: Fix two cases of PPCAvFpOp vs PPCFpOp enum confusion
n-i-bz arm: Fix incorrect register-number constraint check for LDAEX{,B,H,D}
n-i-bz DHAT: added collection of the metric "tot-blocks-allocd"
(3.12.0.RC1: 20 October 2016, vex r3282, valgrind r16094)
(3.12.0.RC2: 20 October 2016, vex r3282, valgrind r16096)
(3.12.0: 21 October 2016, vex r3282, valgrind r16098)
Release 3.11.0 (22 September 2015)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.11.0 is a feature release with many improvements and the usual
collection of bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for
X86/MacOSX 10.11, AMD64/MacOSX 10.11 and TILEGX/Linux.
* ================== PLATFORM CHANGES =================
* Support for Solaris/x86 and Solaris/amd64 has been added.
* Preliminary support for Mac OS X 10.11 (El Capitan) has been added.
* Preliminary support for the Tilera TileGX architecture has been added.
* s390x: It is now required for the host to have the "long displacement"
facility. The oldest supported machine model is z990.
* x86: on an SSE2 only host, Valgrind in 32 bit mode now claims to be a
Pentium 4. 3.10.1 wrongly claimed to be a Core 2, which is SSSE3.
* The JIT's register allocator is significantly faster, making the JIT
as a whole somewhat faster, so JIT-intensive activities, for example
program startup, are modestly faster, around 5%.
* There have been changes to the default settings of several command
line flags, as detailed below.
* Intel AVX2 support is more complete (64 bit targets only). On AVX2
capable hosts, the simulated CPUID will now indicate AVX2 support.
* ==================== TOOL CHANGES ====================
* Memcheck:
- The default value for --leak-check-heuristics has been changed from
"none" to "all". This helps to reduce the number of possibly
lost blocks, in particular for C++ applications.
- The default value for --keep-stacktraces has been changed from
"malloc-then-free" to "malloc-and-free". This has a small cost in
memory (one word per malloc-ed block) but allows Memcheck to show the
3 stacktraces of a dangling reference: where the block was allocated,
where it was freed, and where it is acccessed after being freed.
- The default value for --partial-loads-ok has been changed from "no" to
"yes", so as to avoid false positive errors resulting from some kinds
of vectorised loops.
- A new monitor command 'xb <addr> <len>' shows the validity bits of
<len> bytes at <addr>. The monitor command 'xb' is easier to use
than get_vbits when you need to associate byte data value with
their corresponding validity bits.
- The 'block_list' monitor command has been enhanced:
o it can print a range of loss records
o it now accepts an optional argument 'limited <max_blocks>'
to control the number of blocks printed.
o if a block has been found using a heuristic, then
'block_list' now shows the heuristic after the block size.
o the loss records/blocks to print can be limited to the blocks
found via specified heuristics.
- The C helper functions used to instrument loads on
x86-{linux,solaris} and arm-linux (both 32-bit only) have been
replaced by handwritten assembly sequences. This gives speedups
in the region of 0% to 7% for those targets only.
- A new command line option, --expensive-definedness-checks=yes|no,
has been added. This is useful for avoiding occasional invalid
uninitialised-value errors in optimised code. Watch out for
runtime degradation, as this can be up to 25%. As always, though,
the slowdown is highly application specific. The default setting
is "no".
* Massif:
- A new monitor command 'all_snapshots <filename>' dumps all
snapshots taken so far.
* Helgrind:
- Significant memory reduction and moderate speedups for
--history-level=full for applications accessing a lot of memory
with many different stacktraces.
- The default value for --conflict-cache-size=N has been doubled to
2000000. Users that were not using the default value should
preferably also double the value they give.
The default was changed due to the changes in the "full history"
implementation. Doubling the value gives on average a slightly more
complete history and uses similar memory (or significantly less memory
in the worst case) than the previous implementation.
- The Helgrind monitor command 'info locks' now accepts an optional
argument 'lock_addr', which shows information about the lock at the
given address only.
- When using --history-level=full, the new Helgrind monitor command
'accesshistory <addr> [<len>]' will show the recorded accesses for
<len> (or 1) bytes at <addr>.
* ==================== OTHER CHANGES ====================
* The default value for the --smc-check option has been changed from
"stack" to "all-non-file" on targets that provide automatic D-I
cache coherence (x86, amd64 and s390x). The result is to provide,
by default, transparent support for JIT generated and self-modifying
code on all targets.
* Mac OS X only: the default value for the --dsymutil option has been
changed from "no" to "yes", since any serious usage on Mac OS X
always required it to be "yes".
* The command line options --db-attach and --db-command have been removed.
They were deprecated in 3.10.0.
* When a process dies due to a signal, Valgrind now shows the signal
and the stacktrace at default verbosity (i.e. verbosity 1).
* The address description logic used by Memcheck and Helgrind now
describes addresses in anonymous segments, file mmap-ed segments,
shared memory segments and the brk data segment.
* The new option --error-markers=<begin>,<end> can be used to mark the
begin/end of errors in textual output mode, to facilitate
searching/extracting errors in output files that mix valgrind errors
with program output.
* The new option --max-threads=<number> can be used to change the number
of threads valgrind can handle. The default is 500 threads which
should be more than enough for most applications.
* The new option --valgrind-stacksize=<number> can be used to change the
size of the private thread stacks used by Valgrind. This is useful
for reducing memory use or increasing the stack size if Valgrind
segfaults due to stack overflow.
* The new option --avg-transtab-entry-size=<number> can be used to specify
the expected instrumented block size, either to reduce memory use or
to avoid excessive retranslation.
* Valgrind can be built with Intel's ICC compiler, version 14.0 or later.
* New and modified GDB server monitor features:
- When a signal is reported in GDB, you can now use the GDB convenience
variable $_siginfo to examine detailed signal information.
- Valgrind's gdbserver now allows the user to change the signal
to deliver to the process. So, use 'signal SIGNAL' to continue execution
with SIGNAL instead of the signal reported to GDB. Use 'signal 0' to
continue without passing the signal to the process.
- With GDB >= 7.10, the command 'target remote'
will automatically load the executable file of the process running
under Valgrind. This means you do not need to specify the executable
file yourself, GDB will discover it itself. See GDB documentation about
'qXfer:exec-file:read' packet for more info.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
116002 VG_(printf): Problems with justification of strings and integers
155125 avoid cutting away file:lineno after long function name
197259 Unsupported arch_prtctl PR_SET_GS option
201152 ppc64: Assertion in ppc32g_dirtyhelper_MFSPR_268_269
201216 Fix Valgrind does not support pthread_sigmask() on OS X
201435 Fix Darwin: -v does not show kernel version
208217 "Warning: noted but unhandled ioctl 0x2000747b" on Mac OS X
211256 Fixed an outdated comment regarding the default platform.
211529 Incomplete call stacks for code compiled by newer versions of MSVC
211926 Avoid compilation warnings in valgrind.h with -pedantic
212291 Fix unhandled syscall: unix:132 (mkfifo) on OS X
== 263119
226609 Crediting upstream authors in man page
231257 Valgrind omits path when executing script from shebang line
254164 OS X task_info: UNKNOWN task message [id 3405, to mach_task_self() [..]
294065 Improve the pdb file reader by avoiding hardwired absolute pathnames
269360 s390x: Fix addressing mode selection for compare-and-swap
302630 Memcheck: Assertion failed: 'sizeof(UWord) == sizeof(UInt)'
== 326797
312989 ioctl handling needs to do POST handling on generic ioctls and [..]
319274 Fix unhandled syscall: unix:410 (sigsuspend_nocancel) on OS X
324181 mmap does not handle MAP_32BIT (handle it now, rather than fail it)
327745 Fix valgrind 3.9.0 build fails on Mac OS X 10.6.8
330147 libmpiwrap PMPI_Get_count returns undefined value
333051 mmap of huge pages fails due to incorrect alignment
== 339163
334802 valgrind does not always explain why a given option is bad
335618 mov.w rN, pc/sp (ARM32)
335785 amd64->IR 0xC4 0xE2 0x75 0x2F (vmaskmovpd)
== 307399
== 343175
== 342740
== 346912
335907 segfault when running wine's ddrawex/tests/surface.c under valgrind
338602 AVX2 bit in CPUID missing
338606 Strange message for scripts with invalid interpreter
338731 ppc: Fix testuite build for toolchains not supporting -maltivec
338995 shmat with hugepages (SHM_HUGETLB) fails with EINVAL
339045 Getting valgrind to compile and run on OS X Yosemite (10.10)
== 340252
339156 gdbsrv not called for fatal signal
339215 Valgrind 3.10.0 contain 2013 in copyrights notice
339288 support Cavium Octeon MIPS specific BBIT*32 instructions
339636 Use fxsave64 and fxrstor64 mnemonics instead of old-school rex64 prefix
339442 Fix testsuite build failure on OS X 10.9
339542 Enable compilation with Intel's ICC compiler
339563 The DVB demux DMX_STOP ioctl doesn't have a wrapper
339688 Mac-specific ASM does not support .version directive (cpuid,
tronical and pushfpopf tests)
339745 Valgrind crash when check Marmalade app (partial fix)
339755 Fix known deliberate memory leak in setenv() on Mac OS X 10.9
339778 Linux/TileGx platform support for Valgrind
339780 Fix known uninitialised read in pthread_rwlock_init() on Mac OS X 10.9
339789 Fix none/tests/execve test on Mac OS X 10.9
339808 Fix none/tests/rlimit64_nofile test on Mac OS X 10.9
339820 vex amd64->IR: 0x66 0xF 0x3A 0x63 0xA 0x42 0x74 0x9 (pcmpistri $0x42)
340115 Fix none/tests/cmdline[1|2] tests on systems which define TMPDIR
340392 Allow user to select more accurate definedness checking in memcheck
to avoid invalid complaints on optimised code
340430 Fix some grammatical weirdness in the manual.
341238 Recognize GCC5/DWARFv5 DW_LANG constants (Go, C11, C++11, C++14)
341419 Signal handler ucontext_t not filled out correctly on OS X
341539 VG_(describe_addr) should not describe address as belonging to client
segment if it is past the heap end
341613 Enable building of manythreads and thread-exits tests on Mac OS X
341615 Fix none/tests/darwin/access_extended test on Mac OS X
341698 Valgrind's AESKEYGENASSIST gives wrong result in words 0 and 2 [..]
341789 aarch64: shmat fails with valgrind on ARMv8
341997 MIPS64: Cavium OCTEON insns - immediate operand handled incorrectly
342008 valgrind.h needs type cast [..] for clang/llvm in 64-bit mode
342038 Unhandled syscalls on aarch64 (mbind/get/set_mempolicy)
342063 wrong format specifier for test mcblocklistsearch in gdbserver_tests
342117 Hang when loading PDB file for MSVC compiled Firefox under Wine
342221 socket connect false positive uninit memory for unknown af family
342353 Allow dumping full massif output while valgrind is still running
342571 Valgrind chokes on AVX compare intrinsic with _CMP_GE_QS
== 346476
== 348387
== 350593
342603 Add I2C_SMBUS ioctl support
342635 OS X 10.10 (Yosemite) - missing system calls and fcntl code
342683 Mark memory past the initial brk limit as unaddressable
342783 arm: unhandled instruction 0xEEFE1ACA = "vcvt.s32.f32 s3, s3, #12"
342795 Internal glibc __GI_mempcpy call should be intercepted
342841 s390x: Support instructions fiebr(a) and fidbr(a)
343012 Unhandled syscall 319 (memfd_create)
343069 Patch updating v4l2 API support
343173 helgrind crash during stack unwind
343219 fix GET_STARTREGS for arm
343303 Fix known deliberate memory leak in setenv() on Mac OS X 10.10
343306 OS X 10.10: UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option
343332 Unhandled instruction 0x9E310021 (fcvtmu) on aarch64
343335 unhandled instruction 0x1E638400 (fccmp) aarch64
343523 OS X mach_ports_register: UNKNOWN task message [id 3403, to [..]
343525 OS X host_get_special_port: UNKNOWN host message [id 412, to [..]
343597 ppc64le: incorrect use of offseof macro
343649 OS X host_create_mach_voucher: UNKNOWN host message [id 222, to [..]
343663 OS X 10.10 Memchecj always reports a leak regardless of [..]
343732 Unhandled syscall 144 (setgid) on aarch64
343733 Unhandled syscall 187 (msgctl and related) on aarch64
343802 s390x: False positive "conditional jump or move depends on [..]
343902 --vgdb=yes doesn't break when --xml=yes is used
343967 Don't warn about setuid/setgid/setcap executable for directories
343978 Recognize DWARF5/GCC5 DW_LANG_Fortran 2003 and 2008 constants
344007 accept4 syscall unhandled on arm64 (242) and ppc64 (344)
344033 Helgrind on ARM32 loses track of mutex state in pthread_cond_wait
344054 www - update info for Solaris/illumos
344416 'make regtest' does not work cleanly on OS X
344235 Remove duplicate include of pub_core_aspacemgr.h
344279 syscall sendmmsg on arm64 (269) and ppc32/64 (349) unhandled
344295 syscall recvmmsg on arm64 (243) and ppc32/64 (343) unhandled
344307 2 unhandled syscalls on aarch64/arm64: umount2(39), mount (40)
344314 callgrind_annotate ... warnings about commands containing newlines
344318 socketcall should wrap recvmmsg and sendmmsg
344337 Fix unhandled syscall: mach:41 (_kernelrpc_mach_port_guard_trap)
344416 Fix 'make regtest' does not work cleanly on OS X
344499 Fix compilation for Linux kernel >= 4.0.0
344512 OS X: unhandled syscall: unix:348 (__pthread_chdir),
unix:349 (__pthread_fchdir)
344559 Garbage collection of unused segment names in address space manager
344560 Fix stack traces missing penultimate frame on OS X
344621 Fix memcheck/tests/err_disable4 test on OS X
344686 Fix suppression for pthread_rwlock_init on OS X 10.10
344702 Fix missing libobjc suppressions on OS X 10.10
== 344543
344936 Fix unhandled syscall: unix:473 (readlinkat) on OS X 10.10
344939 Fix memcheck/tests/xml1 on OS X 10.10
345016 helgrind/tests/locked_vs_unlocked2 is failing sometimes
345079 Fix build problems in VEX/useful/test_main.c
345126 Incorrect handling of VIDIOC_G_AUDIO and G_AUDOUT
345177 arm64: prfm (reg) not implemented
345215 Performance improvements for the register allocator
345248 add support for Solaris OS in valgrind
345338 TIOCGSERIAL and TIOCSSERIAL ioctl support on Linux
345394 Fix memcheck/tests/strchr on OS X
345637 Fix memcheck/tests/sendmsg on OS X
345695 Add POWERPC support for AT_DCACHESIZE and HWCAP2
345824 Fix aspacem segment mismatch: seen with none/tests/bigcode
345887 Fix an assertion in the address space manager
345928 amd64: callstack only contains current function for small stacks
345984 disInstr(arm): unhandled instruction: 0xEE193F1E
345987 MIPS64: Implement cavium LHX instruction
346031 MIPS: Implement support for the CvmCount register (rhwr %0, 31)
346185 Fix typo saving altivec register v24
346267 Compiler warnings for PPC64 code on call to LibVEX_GuestPPC64_get_XER()
and LibVEX_GuestPPC64_get_CR()
346270 Regression tests none/tests/jm_vec/isa_2_07 and
none/tests/test_isa_2_07_part2 have failures on PPC64 little endian
346307 fuse filesystem syscall deadlocks
346324 PPC64 missing support for lbarx, lharx, stbcx and sthcx instructions
346411 MIPS: SysRes::_valEx handling is incorrect
346416 Add support for LL_IOC_PATH2FID and LL_IOC_GETPARENT Lustre ioctls
346474 PPC64 Power 8, spr TEXASRU register not supported
346487 Compiler generates "note" about a future ABI change for PPC64
346562 MIPS64: lwl/lwr instructions are performing 64bit loads
and causing spurious "invalid read of size 8" warnings
346801 Fix link error on OS X: _vgModuleLocal_sf_maybe_extend_stack
347151 Fix suppression for pthread_rwlock_init on OS X 10.8
347233 Fix memcheck/tests/strchr on OS X 10.10 (Haswell)
347322 Power PC regression test cleanup
347379 valgrind --leak-check=full leak errors from system libs on OS X 10.8
== 217236
347389 unhandled syscall: 373 (Linux ARM syncfs)
347686 Patch set to cleanup PPC64 regtests
347978 Remove bash dependencies where not needed
347982 OS X: undefined symbols for architecture x86_64: "_global" [..]
347988 Memcheck: the 'impossible' happened: unexpected size for Addr (OSX/wine)
== 345929
348102 Patch updating v4l2 API support
348247 amd64 front end: jno jumps wrongly when overflow is not set
348269 Improve mmap MAP_HUGETLB support.
348334 (ppc) valgrind does not simulate dcbfl - then my program terminates
348345 Assertion fails for negative lineno
348377 Unsupported ARM instruction: yield
348565 Fix detection of command line option availability for clang
348574 vex amd64->IR pcmpistri SSE4.2 unsupported (pcmpistri $0x18)
348728 Fix broken check for VIDIOC_G_ENC_INDEX
348748 Fix redundant condition
348890 Fix clang warning about unsupported --param inline-unit-growth=900
348949 Bogus "ERROR: --ignore-ranges: suspiciously large range"
349034 Add Lustre ioctls LL_IOC_GROUP_LOCK and LL_IOC_GROUP_UNLOCK
349086 Fix UNKNOWN task message [id 3406, to mach_task_self(), [..]
349087 Fix UNKNOWN task message [id 3410, to mach_task_self(), [..]
349626 Implemented additional Xen hypercalls
349769 Clang/osx: ld: warning: -read_only_relocs cannot be used with x86_64
349790 Clean up of the hardware capability checking utilities.
349828 memcpy intercepts memmove causing src/dst overlap error (ppc64 ld.so)
349874 Fix typos in source code
349879 memcheck: add handwritten assembly for helperc_LOADV*
349941 di_notify_mmap might create wrong start/size DebugInfoMapping
350062 vex x86->IR: 0x66 0xF 0x3A 0xB (ROUNDSD) on OS X
350202 Add limited param to 'monitor block_list'
350290 s390x: Support instructions fixbr(a)
350359 memcheck/tests/x86/fxsave hangs indefinetely on OS X
350809 Fix none/tests/async-sigs for Solaris
350811 Remove reference to --db-attach which has been removed.
350813 Memcheck/x86: enable handwritten assembly helpers for x86/Solaris too
350854 hard-to-understand code in VG_(load_ELF)()
351140 arm64 syscalls setuid (146) and setresgid (149) not implemented
351386 Solaris: Cannot run ld.so.1 under Valgrind
351474 Fix VG_(iseqsigset) as obvious
351531 Typo in /include/vki/vki-xen-physdev.h header guard
351756 Intercept platform_memchr$VARIANT$Haswell on OS X
351858 ldsoexec support on Solaris
351873 Newer gcc doesn't allow __builtin_tabortdc[i] in ppc32 mode
352130 helgrind reports false races for printfs using mempcpy on FILE* state
352284 s390: Conditional jump depends on uninitialised value(s) in vfprintf
352320 arm64 crash on none/tests/nestedfs
352765 Vbit test fails on Power 6
352768 The mbar instruction is missing from the Power PC support
352769 Power PC program priority register (PPR) is not supported
n-i-bz Provide implementations of certain compiler builtins to support
compilers that may not provide those
n-i-bz Old STABS code is still being compiled, but never used. Remove it.
n-i-bz Fix compilation on distros with glibc < 2.5
n-i-bz (vex 3098) Avoid generation of Neon insns on non-Neon hosts
n-i-bz Enable rt_sigpending syscall on ppc64 linux.
n-i-bz mremap did not work properly on shared memory
n-i-bz Fix incorrect sizeof expression in syswrap-xen.c reported by Coverity
n-i-bz In VALGRIND_PRINTF write out thread name, if any, to xml
(3.11.0.TEST1: 8 September 2015, vex r3187, valgrind r15646)
(3.11.0.TEST2: 21 September 2015, vex r3193, valgrind r15667)
(3.11.0: 22 September 2015, vex r3195, valgrind r15674)
Release 3.10.1 (25 November 2014)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.10.1 is a bug fix release. It fixes various bugs reported in 3.10.0
and backports fixes for all reported missing AArch64 ARMv8 instructions
and syscalls from the trunk. If you package or deliver 3.10.0 for others
to use, you might want to consider upgrading to 3.10.1 instead.
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
335440 arm64: ld1 (single structure) is not implemented
335713 arm64: unhanded instruction: prfm (immediate)
339020 ppc64: memcheck/tests/ppc64/power_ISA2_05 failing in nightly build
339182 ppc64: AvSplat ought to load destination vector register with [..]
339336 PPC64 store quad instruction (stq) is not supposed to change [..]
339433 ppc64 lxvw4x instruction uses four 32-byte loads
339645 Use correct tag names in sys_getdents/64 wrappers
339706 Fix false positive for ioctl(TIOCSIG) on linux
339721 assertion 'check_sibling == sibling' failed in readdwarf3.c ...
339853 arm64 times syscall unknown
339855 arm64 unhandled getsid/setsid syscalls
339858 arm64 dmb sy not implemented
339926 Unhandled instruction 0x1E674001 (frintx) on aarm64
339927 Unhandled instruction 0x9E7100C6 (fcvtmu) on aarch64
339938 disInstr(arm64): unhandled instruction 0x4F8010A4 (fmla)
== 339950
339940 arm64: unhandled syscall: 83 (sys_fdatasync) + patch
340033 arm64: unhandled insn dmb ishld and some other isb-dmb-dsb variants
340028 unhandled syscalls for arm64 (msync, pread64, setreuid and setregid)
340036 arm64: Unhandled instruction ld4 (multiple structures, no offset)
340236 arm64: unhandled syscalls: mknodat, fchdir, chroot, fchownat
340509 arm64: unhandled instruction fcvtas
340630 arm64: fchmod (52) and fchown (55) syscalls not recognized
340632 arm64: unhandled instruction fcvtas
340722 Resolve "UNKNOWN attrlist flags 0:0x10000000"
340725 AVX2: Incorrect decoding of vpbroadcast{b,w} reg,reg forms
340788 warning: unhandled syscall: 318 (getrandom)
340807 disInstr(arm): unhandled instruction: 0xEE989B20
340856 disInstr(arm64): unhandled instruction 0x1E634C45 (fcsel)
340922 arm64: unhandled getgroups/setgroups syscalls
350251 Fix typo in VEX utility program (test_main.c).
350407 arm64: unhandled instruction ucvtf (vector, integer)
350809 none/tests/async-sigs breaks when run under cron on Solaris
350811 update README.solaris after r15445
350813 Use handwritten memcheck assembly helpers on x86/Solaris [..]
350854 strange code in VG_(load_ELF)()
351140 arm64 syscalls setuid (146) and setresgid (149) not implemented
n-i-bz DRD and Helgrind: Handle Imbe_CancelReservation (clrex on ARM)
n-i-bz Add missing ]] to terminate CDATA.
n-i-bz Glibc versions prior to 2.5 do not define PTRACE_GETSIGINFO
n-i-bz Enable sys_fadvise64_64 on arm32.
n-i-bz Add test cases for all remaining AArch64 SIMD, FP and memory insns.
n-i-bz Add test cases for all known arm64 load/store instructions.
n-i-bz PRE(sys_openat): when checking whether ARG1 == VKI_AT_FDCWD [..]
n-i-bz Add detection of old ppc32 magic instructions from bug 278808.
n-i-bz exp-dhat: Implement missing function "dh_malloc_usable_size".
n-i-bz arm64: Implement "fcvtpu w, s".
n-i-bz arm64: implement ADDP and various others
n-i-bz arm64: Implement {S,U}CVTF (scalar, fixedpt).
n-i-bz arm64: enable FCVT{A,N}S X,S.
(3.10.1: 25 November 2014, vex r3026, valgrind r14785)
Release 3.10.0 (10 September 2014)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.10.0 is a feature release with many improvements and the usual
collection of bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,
MIPS64/Linux, ARM/Android, MIPS32/Android, X86/Android, X86/MacOSX 10.9
and AMD64/MacOSX 10.9. Support for MacOSX 10.8 and 10.9 is
significantly improved relative to the 3.9.0 release.
* ================== PLATFORM CHANGES =================
* Support for the 64-bit ARM Architecture (AArch64 ARMv8). This port
is mostly complete, and is usable, but some SIMD instructions are as
yet unsupported.
* Support for little-endian variant of the 64-bit POWER architecture.
* Support for Android on MIPS32.
* Support for 64bit FPU on MIPS32 platforms.
* Both 32- and 64-bit executables are supported on MacOSX 10.8 and 10.9.
* Configuration for and running on Android targets has changed.
See README.android in the source tree for details.
* ================== DEPRECATED FEATURES =================
* --db-attach is now deprecated and will be removed in the next
valgrind feature release. The built-in GDB server capabilities are
superior and should be used instead. Learn more here:
http://valgrind.org/docs/manual/manual-core-adv.html#manual-core-adv.gdbserver
* ==================== TOOL CHANGES ====================
* Memcheck:
- Client code can now selectively disable and re-enable reporting of
invalid address errors in specific ranges using the new client
requests VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE and
VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE.
- Leak checker: there is a new leak check heuristic called
"length64". This is used to detect interior pointers pointing 8
bytes inside a block, on the assumption that the first 8 bytes
holds the value "block size - 8". This is used by
sqlite3MemMalloc, for example.
- Checking of system call parameters: if a syscall parameter
(e.g. bind struct sockaddr, sendmsg struct msghdr, ...) has
several fields not initialised, an error is now reported for each
field. Previously, an error was reported only for the first
uninitialised field.
- Mismatched alloc/free checking: a new flag
--show-mismatched-frees=no|yes [yes] makes it possible to turn off
such checks if necessary.
* Helgrind:
- Improvements to error messages:
o Race condition error message involving heap allocated blocks also
show the thread number that allocated the raced-on block.
o All locks referenced by an error message are now announced.
Previously, some error messages only showed the lock addresses.
o The message indicating where a lock was first observed now also
describes the address/location of the lock.
- Helgrind now understands the Ada task termination rules and
creates a happens-before relationship between a terminated task
and its master. This avoids some false positives and avoids a big
memory leak when a lot of Ada tasks are created and terminated.
The interceptions are only activated with forthcoming releases of
gnatpro >= 7.3.0w-20140611 and gcc >= 5.0.
- A new GDB server monitor command "info locks" giving the list of
locks, their location, and their status.
* Callgrind:
- callgrind_control now supports the --vgdb-prefix argument,
which is needed if valgrind was started with this same argument.
* ==================== OTHER CHANGES ====================
* Unwinding through inlined function calls. Stack unwinding can now
make use of Dwarf3 inlined-unwind information if it is available.
The practical effect is that inlined calls become visible in stack
traces. The suppression matching machinery has been adjusted
accordingly. This is controlled by the new option
--read-inline-info=yes|no. Currently this is enabled by default
only on Linux and Android targets and only for the tools Memcheck,
Helgrind and DRD.
* Valgrind can now read EXIDX unwind information on 32-bit ARM
targets. If an object contains both CFI and EXIDX unwind
information, Valgrind will prefer the CFI over the EXIDX. This
facilitates unwinding through system libraries on arm-android
targets.
* Address description logic has been improved and is now common
between Memcheck and Helgrind, resulting in better address
descriptions for some kinds of error messages.
* Error messages about dubious arguments (eg, to malloc or calloc) are
output like other errors. This means that they can be suppressed
and they have a stack trace.
* The C++ demangler has been updated for better C++11 support.
* New and modified GDB server monitor features:
- Thread local variables/storage (__thread) can now be displayed.
- The GDB server monitor command "v.info location <address>"
displays information about an address. The information produced
depends on the tool and on the options given to valgrind.
Possibly, the following are described: global variables, local
(stack) variables, allocated or freed blocks, ...
- The option "--vgdb-stop-at=event1,event2,..." allows the user to
ask the GDB server to stop at the start of program execution, at
the end of the program execution and on Valgrind internal errors.
- A new monitor command "v.info stats" shows various Valgrind core
and tool statistics.
- A new monitor command "v.set hostvisibility" allows the GDB server
to provide access to Valgrind internal host status/memory.
* A new option "--aspace-minaddr=<address>" can in some situations
allow the use of more memory by decreasing the address above which
Valgrind maps memory. It can also be used to solve address
conflicts with system libraries by increasing the default value.
See user manual for details.
* The amount of memory used by Valgrind to store debug info (unwind
info, line number information and symbol data) has been
significantly reduced, even though Valgrind now reads more
information in order to support unwinding of inlined function calls.
* Dwarf3 handling with --read-var-info=yes has been improved:
- Ada and C struct containing VLAs no longer cause a "bad DIE" error
- Code compiled with
-ffunction-sections -fdata-sections -Wl,--gc-sections
no longer causes assertion failures.
* Improved checking for the --sim-hints= and --kernel-variant=
options. Unknown strings are now detected and reported to the user
as a usage error.
* The semantics of stack start/end boundaries in the valgrind.h
VALGRIND_STACK_REGISTER client request has been clarified and
documented. The convention is that start and end are respectively
the lowest and highest addressable bytes of the stack.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
175819 Support for ipv6 socket reporting with --track-fds
232510 make distcheck fails
249435 Analyzing wine programs with callgrind triggers a crash
278972 support for inlined function calls in stacktraces and suppression
== 199144
291310 FXSAVE instruction marks memory as undefined on amd64
303536 ioctl for SIOCETHTOOL (ethtool(8)) isn't wrapped
308729 vex x86->IR: unhandled instruction bytes 0xf 0x5 (syscall)
315199 vgcore file for threaded app does not show which thread crashed
315952 tun/tap ioctls are not supported
323178 Unhandled instruction: PLDW register (ARM)
323179 Unhandled instruction: PLDW immediate (ARM)
324050 Helgrind: SEGV because of unaligned stack when using movdqa
325110 Add test-cases for Power ISA 2.06 insns: divdo/divdo. and divduo/divduo.
325124 [MIPSEL] Compilation error
325477 Phase 4 support for IBM Power ISA 2.07
325538 cavium octeon mips64, valgrind reported "dumping core" [...]
325628 Phase 5 support for IBM Power ISA 2.07
325714 Empty vgcore but RLIMIT_CORE is big enough (too big)
325751 Missing the two privileged Power PC Transactional Memory Instructions
325816 Phase 6 support for IBM Power ISA 2.07
325856 Make SGCheck fail gracefully on unsupported platforms
326026 Iop names for count leading zeros/sign bits incorrectly imply [..]
326436 DRD: False positive in libstdc++ std::list::push_back
326444 Cavium MIPS Octeon Specific Load Indexed Instructions
326462 Refactor vgdb to isolate invoker stuff into separate module
326469 amd64->IR: 0x66 0xF 0x3A 0x63 0xC1 0xE (pcmpistri 0x0E)
326623 DRD: false positive conflict report in a field assignment
326724 Valgrind does not compile on OSX 1.9 Mavericks
326816 Intercept for __strncpy_sse2_unaligned missing?
326921 coregrind fails to compile m_trampoline.S with MIPS/Linux port of V
326983 Clear direction flag after tests on amd64.
327212 Do not prepend the current directory to absolute path names.
327223 Support for Cavium MIPS Octeon Atomic and Count Instructions
327238 Callgrind Assertion 'passed <= last_bb->cjmp_count' failed
327284 s390x: Fix translation of the risbg instruction
327639 vex amd64->IR pcmpestri SSE4.2 instruction is unsupported 0x34
327837 dwz compressed alternate .debug_info and .debug_str not read correctly
327916 DW_TAG_typedef may have no name
327943 s390x: add a redirection for the 'index' function
328100 XABORT not implemented
328205 Implement additional Xen hypercalls
328454 add support Backtraces with ARM unwind tables (EXIDX)
328455 s390x: SIGILL after emitting wrong register pair for ldxbr
328711 valgrind.1 manpage "memcheck options" section is badly generated
328878 vex amd64->IR pcmpestri SSE4.2 instruction is unsupported 0x14
329612 Incorrect handling of AT_BASE for image execution
329694 clang warns about using uninitialized variable
329956 valgrind crashes when lmw/stmw instructions are used on ppc64
330228 mmap must align to VKI_SHMLBA on mips32
330257 LLVM does not support `-mno-dynamic-no-pic` option
330319 amd64->IR: unhandled instruction bytes: 0xF 0x1 0xD5 (xend)
330459 --track-fds=yes doesn't track eventfds
330469 Add clock_adjtime syscall support
330594 Missing sysalls on PowerPC / uClibc
330622 Add test to regression suite for POWER instruction: dcbzl
330939 Support for AMD's syscall instruction on x86
== 308729
330941 Typo in PRE(poll) syscall wrapper
331057 unhandled instruction: 0xEEE01B20 (vfma.f64) (has patch)
331254 Fix expected output for memcheck/tests/dw4
331255 Fix race condition in test none/tests/coolo_sigaction
331257 Fix type of jump buffer in test none/tests/faultstatus
331305 configure uses bash specific syntax
331337 s390x WARNING: unhandled syscall: 326 (dup3)
331380 Syscall param timer_create(evp) points to uninitialised byte(s)
331476 Patch to handle ioctl 0x5422 on Linux (x86 and amd64)
331829 Unexpected ioctl opcode sign extension
331830 ppc64: WARNING: unhandled syscall: 96/97
331839 drd/tests/sem_open specifies invalid semaphore name
331847 outcome of drd/tests/thread_name is nondeterministic
332037 Valgrind cannot handle Thumb "add pc, reg"
332055 drd asserts on platforms with VG_STACK_REDZONE_SZB == 0 and
consistency checks enabled
332263 intercepts for pthread_rwlock_timedrdlock and
pthread_rwlock_timedwrlock are incorrect