Commits on Jun 8, 2017

1. valgrind: Remove git conflict marker

   

   pmenzel committed Jun 8, 2017
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2. valgrind: Update version from 3.11.0 to 3.12.0 …

   [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.
   >
   > […]

   

   pmenzel committed Jun 8, 2017
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