Update Valgrind from 3.11.0 to 3.12.0 #394
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[Release notes](http://valgrind.org/docs/manual/dist.news.html): > 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. > > […]
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Tested on keineahnung.