valgrind-3.18.1

[Bruce Dubbs]

New minor version.

[pierre]

Release 3.18.0 (15 Oct 2021)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

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

* The libiberty demangler has been updated, which brings support for
  Rust v0 name demangling

* __libc_freeres isn't called anymore after the program recieves a
  fatal signal. Causing some internal glibc resources to hang around,
  but preventing any crashes after the program has ended.

* The DWARF reader is now very much faster at startup when just
  --read-inline-info=yes (the default in most cases) is given.

* glibc 2.34, which moved various functions from libpthread.so into
  libc.so, is now supported.

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

* arm64:

  - v8.2 scalar and vector FABD, FACGE, FACGT and FADD.
  - v8.2 FP compare & conditional compare instructions.
  - Zero variants of v8.2 FP compare instructions.

* s390:

  - Support the miscellaneous-instruction-extensions facility 3 and
    the vector-enhancements facility 2.  This enables programs
    compiled with "-march=arch13" or "-march=z15" to be executed
    under Valgrind.

* ppc64:

  - ISA 3.1 support is now complete
  - ISA 3.0 support for the darn instruction added.
  - ISA 3.0 support for the vector system call instruction scv added.
  - ISA 3.0 support for the copy, paste and cpabort instructions added.
 
* Support for X86/FreeBSD and AMD64/FreeBSD has been added.

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

* Memcheck on amd64: minor fixes to remove some false positive
  undef-value errors

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

208531  [PATCH]: FreeBSD support for valgrind
368960  WARNING: unhandled amd64-linux syscall: 163 (acct)
407589  [Linux] Add support for C11 aligned_alloc() and GNU reallocarray()
423963  Error in child thread when CLONE_PIDFD is used
426148  crash with "impossible happened" when running BPF CO-RE programs
429375  PPC ISA 3.1 support is missing, part 9
431157  PPC_FEATURE2_SCV needs to be masked in AT_HWCAP2
431306  Update demangler to support Rust v0 name mangling
432387  s390x: z15 instructions support
433437  FreeBSD support, part 1
433438  FreeBSD support, part 2
433439  FreeBSD support, part 3
433469  FreeBSD support, part 4
433473  FreeBSD support, part 5
433477  FreeBSD support, part 6
433479  FreeBSD support, part 7
433504  FreeBSD support, part 8
433506  FreeBSD support, part 9
433507  FreeBSD support, part 10
433508  FreeBSD support, part 11
433510  FreeBSD support, part 12
433801  PPC ISA 3.1 support is missing, part 10 (ISA 3.1 support complete)
433863  s390x: memcheck/tests/s390x/{cds,cs,csg} failures
434296  s390x: False-positive memcheck diagnostics from vector string
        instructions
434840  PPC64 darn instruction not supported
435665  PPC ISA 3.0 copy, paste, cpabort instructions are not supported 
435908  valgrind tries to fetch from deubginfod for files which already
        have debug information
438871  unhandled instruction bytes: 0xF3 0x49 0xF 0x6F 0x9C 0x24 0x60 0x2
439046  valgrind is unusably large when linked with lld
439090  Implement close_range(2)
439326  Valgrind 3.17.0 won't compile with Intel 2021 oneAPI compilers
439590  glibc-2.34 breaks suppressions against obj:*/lib*/libc-2.*so*
440670  unhandled ppc64le-linux syscall: 252 statfs64 and 253 fstatfs64
440906  Fix impossible constraint issue in P10 testcase.
441512  Remove a unneeded / unnecessary prefix check.
441534  Update the expected output for test_isa_3_1_VRT.
442061  very slow execution under Fedora 34 (readdwarf3)
443031  Gcc -many change requires explicit .machine directives
443033  Add support for the ISA 3.0 mcrxrx instruction
443034  Sraw, srawi, srad, sradi, mfs
443178  Powerpc, test jm-mfspr expected output needs to be updated.
443179  Need new test for the lxvx and stxvx instructions on ISA 2.07 and
        ISA 3.0 systems.
443180  The subnormal test and the ISA 3.0 test generate compiler warnings
443314  In the latest GIT version, Valgrind with "--trace-flags" crashes
        at "al" register
443605  Don't call final_tidyup (__libc_freeres) on FatalSignal

[pierre]

Fixed at commit 141ee0a5de47107e09abb13ede6f144fe26ce435