[Valgrind-announce] Valgrind-3.14.0 is available

[Julian S. <js...@ac...>]

We are pleased to announce a new release of Valgrind, version 3.14.0,
available from http://www.valgrind.org.

3.14.0 updates support for existing platforms.  There are, as ever, many
refinements and bug fixes.  The release notes below give more details.

Our thanks to all those who contribute to Valgrind's development.  This
release represents a great deal of time, energy and effort on the part of many
people.

Unfortunately the Solaris port no longer has a maintainer.  If you have some
familiarity with low level Solaris system programming and would like to help
out, please get in touch.  We are also looking for further assistance with the
MacOS port.

Happy and productive debugging and profiling,

-- The Valgrind Developers


Release 3.14.0 (9 October 2018)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3.14.0 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 and AMD64/MacOSX 10.12.  There is also preliminary
support for X86/macOS 10.13, AMD64/macOS 10.13.

* ==================== CORE CHANGES ===================

* The new option --keep-debuginfo=no|yes (default no) can be used to retain
  debug info for unloaded code.  This allows saved stack traces (e.g. for
  memory leaks) to include file/line info for code that has been dlclose'd (or
  similar).  See the user manual for more information and known limitations.

* Ability to specify suppressions based on source file name and line number.

* Majorly overhauled register allocator.  No end-user changes, but the JIT
  generates code a bit more quickly now.

* ================== PLATFORM CHANGES =================

* Preliminary support for macOS 10.13 has been added.

* mips: support for MIPS32/MIPS64 Revision 6 has been added.

* mips: support for MIPS SIMD architecture (MSA) has been added.

* mips: support for MIPS N32 ABI has been added.

* s390: partial support for vector instructions (integer and string) has been
  added.

* ==================== TOOL CHANGES ====================

* Helgrind: Addition of a flag
  --delta-stacktrace=no|yes [yes on linux amd64/x86]
  which specifies how full history stack traces should be computed.
  Setting this to =yes can speed up Helgrind by 25% when using
  --history-level=full.

* Memcheck: reduced false positive rate for optimised code created by Clang 6
  / LLVM 6 on x86, amd64 and arm64.  In particular, Memcheck analyses code
  blocks more carefully to determine where it can avoid expensive definedness
  checks without loss of precision.  This is controlled by the flag
  --expensive-definedness-checks=no|auto|yes [auto].

* ==================== OTHER CHANGES ====================

* Valgrind is now buildable with link-time optimisation (LTO).  A new
  configure option --enable-lto=yes allows building Valgrind with LTO.  If the
  toolchain supports it, this produces a smaller/faster Valgrind (up to 10%).
  Note that if you are doing Valgrind development, --enable-lto=yes massively
  slows down the build process.

* ==================== 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.

79362   Debug info is lost for .so files when they are dlclose'd
208052  strlcpy error when n = 0
255603  exp-sgcheck Assertion '!already_present' failed
338252  building valgrind with -flto (link time optimisation) fails
345763  MIPS N32 ABI support
368913  WARNING: unhandled arm64-linux syscall: 117 (ptrace)
        == 388664  unhandled arm64-linux syscall: 117  (ptrace)
372347  Replacement problem of the additional c++14/c++17 new/delete operators
373069  memcheck/tests/leak_cpp_interior fails with GCC 5.1+
376257  helgrind history full speed up using a cached stack
379373  Fix syscall param msg->desc.port.name points to uninitialised byte(s)
        on macOS 10.12
379748  Fix missing pselect syscall (OS X 10.11)
379754  Fix missing syscall ulock_wait (OS X 10.12)
380397  s390x: __GI_strcspn() replacemenet needed
381162  possible array overrun in VEX register allocator
381272  ppc64 doesn't compile test_isa_2_06_partx.c without VSX support
381274  powerpc too chatty even with --sigill-diagnostics=no
381289  epoll_pwait can have a NULL sigmask
381553  VEX register allocator v3
381556  arm64: Handle feature registers access on 4.11 Linux kernel or later
381769  Use ucontext_t instead of struct ucontext
381805  arm32 needs ld.so index hardwire for new glibc security fixes
382256  gz compiler flag test doesn't work for gold
382407  vg_perf needs "--terse" command line option
382515  "Assertion 'di->have_dinfo' failed." on wine's dlls/mscoree/tests/[..]
382563  MIPS MSA ASE support
382998  xml-socket doesn't work
383275  massif: m_xarray.c:162 (ensureSpaceXA): Assertion '!xa->arr' failed
383723  Fix missing kevent_qos syscall (macOS 10.11)
        == 385604  illegal hardware instruction (OpenCV cv::namedWindow)
384096  Mention AddrCheck at Memcheck's command line option [..]
384230  vex x86->IR: 0x67 0xE8 0xAB 0x68
        == 384156  vex x86->IR: 0x67 0xE8 0x6B 0x6A
        == 386115  vex x86->IR: 0x67 0xE8 0xD3 0x8B any program
        == 388407  vex x86->IR: 0x67 0xE8 0xAB 0x29
        == 394903  vex x86->IR: 0x67 0xE8 0x1B 0xDA
384337  performance improvements to VEX register allocator v2 and v3
384526  reduce number of spill insns generated by VEX register allocator v3
384584  Callee saved regs listed first for AMD64, X86, and PPC architectures
384631  Sanitise client args as printed with -v
384633  Add a simple progress-reporting facility
384987  VEX regalloc: allocate caller-save registers for short lived vregs
385055  PPC VEX temporary storage exhausted
385182  PPC64 is missing support for the DSCR
385183  PPC64, Add support for xscmpeqdp, xscmpgtdp, xscmpgedp, xsmincdp
385207  PPC64, generate_store_FPRF() generates too many Iops
385208  PPC64, xxperm instruction exhausts temporary memory
385210  PPC64, vpermr instruction could exhaust temporary memory
385279  unhandled syscall: mach:43 (mach_generate_activity_id)
        == 395136  valgrind: m_syswrap/syswrap-main.c:438 (Bool eq_Syscall[..]
        == 387045  Valgrind crashing on High Sierra when testing any newly [..]
385334  PPC64, fix vpermr, xxperm, xxpermr mask value.
385408  s390x: z13 vector "support" instructions not implemented
385409  s390x: z13 vector integer instructions not implemented
385410  s390x: z13 vector string instructions not implemented
385412  s390x: new non-vector z13 instructions not implemented
385868  glibc ld.so _dl_runtime_resolve_avx_slow conditional jump warning.
385912  none/tests/rlimit_nofile fails on newer glibc/kernel.
385939  Optionally exit on the first error
386318  valgrind.org/info/tools.html is missing SGCheck
386425  running valgrind + wine on armv7l gives illegal opcode
386397  PPC64, valgrind truncates powerpc timebase to 32-bits.
387410  MIPSr6 support
387664  Memcheck: make expensive-definedness-checks be the default
387712  s390x cgijnl reports Conditional jump depends on uninitialised value
387766  asm shifts cause false positive "Conditional jump or move depends
        on uninitialised value"
387773  .gnu_debugaltlink paths resolve relative to .debug file, not symlink
388174  valgrind with Wine quits with "Assertion 'cfsi_fits' failed"
388786  Support bpf syscall in amd64 Linux
388862  Add replacements for wmemchr and wcsnlen on Linux
389065  valgrind meets gcc flag -Wlogical-op
389373  exp-sgcheck the 'impossible' happened as Ist_LoadG is not instrumented
390471  suppression by specification of source-file line number
390723  make xtree dump files world wide readable, similar to log files
391164  constraint bug in tests/ppc64/test_isa_2_07_part1.c for mtfprwa
391861  Massif Assertion 'n_ips >= 1 && n_ips <= VG_(clo_backtrace_size)'
392118  unhandled amd64-linux syscall: 332 (statx)
392449  callgrind not clearing the number of calls properly
393017  Add missing support for xsmaxcdp instruction, bug fixes for xsmincdp,
        lxssp, stxssp and stxvl instructions.
393023  callgrind_control risks using the wrong vgdb
393062  build-id ELF phdrs read causes "debuginfo reader: ensure_valid failed"
393099  posix_memalign() invalid write if alignment == 0
393146  failing assert "is_DebugInfo_active(di)"
395709  PPC64 is missing support for the xvnegsp instruction
395682  Accept read-only PT_LOAD segments and .rodata by ld -z separate-code
        == 384727
396475  valgrind OS-X build: config.h not found (out-of-tree macOS builds)
395991  arm-linux: wine's unit tests enter a signal delivery loop [..]
396839  s390x: Trap instructions not implemented
396887  arch_prctl should return EINVAL on unknown option
        == 397286 crash before launching binary (Unsupported arch_prctl option)
        == 397393 valgrind: the 'impossible' happened: (Archlinux)
        == 397521 valgrind: the 'impossible' happened: Unsupported [..]
396906  compile tests failure on mips32-linux: broken inline asm in tests on
        mips32-linux
397012  glibc ld.so uses arch_prctl on i386
397089  amd64: Incorrect decoding of three-register vmovss/vmovsd opcode 11h
397354  utimensat should ignore timespec tv_sec if tv_nsec is UTIME_NOW/OMIT
397424  glibc 2.27 and gdb_server tests
398028  Assertion `cfsi_fits` failing in simple C program
398066  s390x: cgijl dep1, 0 reports false unitialised values warning

n-i-bz  Fix missing workq_ops operations (macOS)
n-i-bz  fix bug in strspn replacement
n-i-bz  Add support for the Linux BLKFLSBUF ioctl
n-i-bz  Add support for the Linux BLKREPORTZONE and BLKRESETZONE ioctls
n-i-bz  Fix possible stack trashing by semctl syscall wrapping
n-i-bz  Add support for the Linux membarrier() system call
n-i-bz  x86 front end: recognise and handle UD2 correctly
n-i-bz  Signal delivery for x86-linux: ensure that the stack pointer is
        correctly aligned before entering the handler.

(3.14.0.RC1: 30 September 2018, git c2aeea2d28acb0639bcc8cc1e4ab115067db1eae)
(3.14.0.RC2: 3 October 2018, git 3e214c4858a6fdd5697e767543a0c19e30505582)
(3.14.0:     9 October 2018, git 353a3587bb0e2757411f9138f5e936728ed6cc4f)