We are pleased to announce a new release of Valgrind, version 3.19.0,
available from https://valgrind.org/downloads/current.html.
3.19.0 fixes a number of bugs and was tested against glibc-2.35, gcc-12
(pre-release) and linux 5.17.1 on GNU/Linux systems and tested on
various FreeBSD systems. See the release notes below for details of
changes.
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.
Happy and productive debugging and profiling,
-- The Valgrind Developers
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 ===================
* Fix Rust v0 name demangling.
* The Linux rseq syscall is now implemented as (silently) returning ENOSYS.
* Add FreeBSD syscall wrappers for __specialfd and __realpathat.
* Remove FreeBSD dependencies on COMPAT10, which fixes compatibility with
HardenedBSD
* ================== PLATFORM CHANGES =================
* arm64:
- ignore the "v8.x" architecture levels, only look at actual CPU features
present. Fixes mismatch detected between RDMA and atomics features
preventing startup on some QEMU configurations.
- Implement LD{,A}XP and ST{,L}XP
- Fix incorrect code emitted for doubleword CAS.
* s390:
- Fix sys_ipc semtimedop syscall
- Fix VFLRX and WFLRX instructions
- Fix EXRL instruction with negative offset
* ppc64:
- Reimplement the vbpermq instruction support to generate less Iops and
avoid overflowing internal buffers.
- Fix checking for scv support to avoid "Facility 'SCV' unavailable (12),
exception" messages in dmsg.
- Fix setting condition code for Vector Compare quad word instructions.
- Fix fix lxsibzx, lxsihzx and lxsihzx instructions so they only load
their respective sized data.
- Fix the prefixed stq instruction in PC relative mode.
* ==================== TOOL CHANGES ===================
* Memcheck:
- Speed up --track-origins=yes for large (in the range of hundreds to
thousands of megabytes) mmap/munmaps.
* DRD/Helgrind:
- Several fixes for new versions of libstd++ using new posix try_lock
functions
* ==================== 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.
403802 leak_cpp_interior fails with some reachable blocks different than
expected
435732 memcheck/tests/leak_cpp_interior fails with gcc11
444242 s390x: Valgrind crashes on EXRL with negative offset
444399 arm64: unhandled instruction 0xC87F2D89 (LD{,A}XP and ST{,L}XP).
== 434283
444481 gdb_server test failures on s390x
444495 dhat/tests/copy fails on s390x
444552 memcheck/tests/sem fails on s390x with glibc 2.34
444571 PPC, fix the lxsibzx and lxsihzx so they only load their respective
sized data.
444836 PPC, pstq instruction for R=1 is not storing to the correct address.
444925 fexecve syscall wrapper not properly implemented
445032 valgrind/memcheck crash with SIGSEGV when SIGVTALRM timer used and
libthr.so associated
445211 Fix out of tree builds
445300 [PATCH] Fix building tests with Musl
445011 SIGCHLD is sent when valgrind uses debuginfod-find
445354 arm64 backend: incorrect code emitted for doubleword CAS
445415 arm64 front end: alignment checks missing for atomic instructions
445504 Using C++ condition_variable results in bogus "mutex is locked
simultaneously by two threads" warning
445607 Unhandled amd64-freebsd syscall: 247
445668 Inline stack frame generation is broken for Rust binaries
445916 Demangle Rust v0 symbols with .llvm suffix
446139 DRD/Helgrind with std::shared_timed_mutex::try_lock_until and
try_lock_shared_until false positives
446138 DRD/Helgrind with std::timed_mutex::try_lock_until false positives
446281 Add a DRD suppression for fwrite
446103 Memcheck: `--track-origins=yes` causes extreme slowdowns for large
mmap/munmap
446139 DRD/Helgrind with std::shared_timed_mutex::try_lock_until and
try_lock_shared_until false
446251 TARGET_SIGNAL_THR added to enum target_signal
446823 FreeBSD - missing syscalls when using libzm4
447991 s390x: Valgrind indicates illegal instruction on wflrx
447995 Valgrind segfault on power10 due to hwcap checking code
449483 Powerpc: vcmpgtsq., vcmpgtuq,, vcmpequq. instructions not setting the
condition code correctly.
449672 ppc64 --track-origins=yes failures because of bad cmov addHRegUse
449838 sigsegv liburing the 'impossible' happened for io_uring_setup
450025 Powerc: ACC file not implemented as a logical overlay of the VSR
registers.
450437 Warn for execve syscall with argv or argv[0] being NULL
450536 Powerpc: valgrind throws 'facility scv unavailable exception'
451626 Syscall param bpf(attr->raw_tracepoint.name) points to unaddressable
byte(s)
451827 [ppc64le] VEX temporary storage exhausted with several vbpermq
instructions
451843 valgrind fails to start on a FreeBSD system which enforces W^X
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 above.
(3.19.0.RC1: 02 Apr 2022)
(3.19.0.RC2: 08 Apr 2022)
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