-Release 3.12.0 (?? ????????? 201?)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Release 3.12.0 is under development, not yet released.
+
+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 =================
-* Preliminary support for macOS 10.12 (Sierra) has been added.
+* 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 ====================
objects in the pool
- Uses itself to allocate other memory blocks
-* Helgrind:
-
-* Callgrind:
+ - 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:
-n-i-bz Improved thread startup time significantly on non-Linux platforms.
+
+ - 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 staticly linked alternative
- malloc implementations). Dynamic (runtime) linker is excluded, though.
+ 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 darwin/macosx.
+ 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 generate suppression
+ 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 a GDB >= 7.11 to use 'catch syscall' with
+ 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
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"
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
+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
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
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
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 Valgrind dumps core on unimplemented functionality before threads are created
+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
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
-368461 mmapunmap test fails on ppc64
368416 Add tc06_two_races_xml.exp output for ppc64
-368412 False positive result for altivec capability check
+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.
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 alg. using VG_(HT_remove_at_Iter)
- (VgHashTable *table)
+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 r16092)
+
-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 non heap segments
- with 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
Release 3.11.0 (22 September 2015)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
projects / thirdparty / valgrind.git / commitdiff
