Release 3.27.0 (?? Apr 2025) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux, MIPS64/Linux, RISCV64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/macOS, AMD64/macOS. X86/FreeBSD, AMD64/FreeBSD and ARM64/FreeBSD. There is preliminary support for nanoMIPS/Linux. macOS is supported up to version 12 Monterey (amd64 only). * ==================== CORE CHANGES =================== * linux madvise MADV_GUARD_INSTALL unsupported glibc 2.42+ (with linux 6.13+) uses MADV_GUARD_INSTALL to setup stack guard pages. valgrind currently isn't able to track this and such guard pages also don't show up in /proc maps (only in /proc pagemap since linux 6.14). For now valgrind fails a madvise MADV_GUARD_INSTALL syscall with EINVAL. This causes glibc to fall back to mprotect PROT_NONE which valgrind is able to track. See also https://bugs.kde.org/show_bug.cgi?id=514297 * ================== PLATFORM CHANGES ================= s390x: Machine models older than z196 are no longer supported. Support for the following macOS versions has been added 10,13 High Sierra (bug fixes) 10.14 Mojave 10.15 Calalina 11.0 Big Sur (Intel only) 12.0 Monterey (intel only) * ==================== TOOL CHANGES =================== * ==================== 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. 228343 none/tests/darwin/bug228343 fails on OS X 258140 Valgrind on OS X always reports some memory "still reachable" 413369 unhandled amd64-darwin syscall: unix:151 (getpgid) 487055 memcheck/tests/x86-linux/scalar fails running in Docker 509562 s390x: Define minimum required machine model 510416 Missing syswraps for file_getattr and file_setattr 510563 Add missing syswraps for lsm_get_self_attr and lsm_set_self_attr 510864 Add SSE4.1 PMAXSD and PMINSD instructions support for 32-bit x86 512873 Add SSE4.1 min/max instructions for x86 32 bit 511329 Darwin and FreeBSD: Move setting of carry flag out of ML_(do_syscall_for_client_WRK) 511713 Refactor syscall argument handling 511717 gdbserver (valgrind_read_memory) the 'impossible' happened: Killed by fatal signal (SIGSEGV) 511972 valgrind-3.26.0 tests fail to build on upcomig gcc-16: unrecognized command-line option '-Wno-alloc-size-larger-than=18446744073709551615' 512030 s390x: bfp-convert testcase fails 512037 malloc trace does not print free size or alignment 512571 regtest problems with darwin dsymuti 513257 Add missing syswraps for lsm_list_modules 513522 m_libcassert.c: 'ordered comparison of pointer with integer zero' compiler warning 513475 Add SSE4.1 PMULLD instruction for x86 32 bit 514094 readlink("/proc/self/exe") overwrites buffer beyond its return value 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. (3.27.0.RC1: ?? Apr 2025) Release 3.26.0 (24 Oct 2025) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux, MIPS64/Linux, RISCV64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, AMD64/MacOSX 10.12, X86/FreeBSD, AMD64/FreeBSD and ARM64/FreeBSD There is also preliminary support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux. * ==================== CORE CHANGES =================== * Upgrade to the GNU General Public License version 3. * Control building documentation. When using make dist set the Makefile BUILD_DOCS to none, all or html. none, does not build any documentation. all, builds all documentation. html, builds HTML docs but skips building PDFs. See also README_DEVELOPERS. * New VEX API function LibVEX_set_VexControl * The deprecated IROps: Iop_Clz32/64 and Iop_Ctz32/64 have been removed * The Linux Test Project (LTP) integration has been updated to v20250930. The test output has been made compatible with bunsen. Various issues with the linux syscall wrappers have been fixed. New Linux syscall wrappers for: cachestat, futex_waitv, listmount, mount_setattr, mseal, quotactl_fd, remap_file_pages, setdomainname, statmount, swapoff, swapon, sysfs and ustat. * --modify-fds=yes has been added. It acts like --modify-fds=high (the highest available file descriptor is returned first) except when when the lowers stdin/stdout/stderr (file descriptors 0, 1, 2) are available. With --modify-fds=yes 0, 1 or 2 are always returned first when still available before higher file descriptor numbers are. * With --xml=yes log output protocol 6 is now always used (unlike protocol 5 which was only used with--track-fds). The main difference is that the xml output now contains error summaries. See also xml-output-protocol6.txt. * Add "bad" option for --track-fds. When --track-fds=bad is specified, do not produce errors about unclosed file descriptors at program exit. Only produce errors for bad file descriptor usage, either double close or use of file descriptor that is (no longer) valid. * vgdb will now handle the qExecAndArgs packet. * DWARF inlined subroutine handling has been rewritten to work cross compile units. This should get rid of backtraces with "UnknownInlinedFun". * ================== PLATFORM CHANGES ================= FreeBSD 15 (which is expected to ship in December 2025, after Valgrind 3.26 is released) contains a change to ptrace that affects use of Valgrind with vgdb. This impacts the mechanism that vgdb uses to interrupt Valgrind if all threads are blocked and you want to get back to the gdb prompt by hitting ctrl-c. This mechanism is no longer reliable. On arm64 Valgrind will crash with an assert. On amd64 syscalls may give spurious and incorrect return codes. There is a workaround. Run the following command (as root). sysctl debug.ptrace_attach_transparent=0 See also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290008 * ==================== TOOL CHANGES =================== * There is a new utility script, "vgstack". It has two option, -h for minimal help, and -v for the version information. In normal use pass it the PID of a running Valgrind process and it will perform a vgdb attach and print the backtrace(s) of the guest executable. * Memcheck handling of aligned allocation functions with a size of zero has changed. Firstly, 'free_aligned_sized' with a size of zero is no longer considered an error. This was intended so that deallocation had the same behaviour as allocation. In practice, platforms that allow aligned allocation with a size of zero will already generate an error at allocation. Other platforms will get an 'Invalid free' error. The case where the allocation and deallocation sizes are different with the deallocation size being zero is already covered by "Mismatched [alloc/dealloc] size" errors. Secondly, the three C aligned allocation functions memalign, aligned_alloc and posix_memalign have a different error message if used with a size of zero. Previously the error was "[function] invalid size value: [number]". This was an overstatement of the issue. The problem is that such usage is not portable across platforms. memalign and aligned_alloc are poorly documented, saying things like "Behavior is undefined if size is not an integral multiple of alignment.". Clearly this does not include negative integers though it does not say so explicitly. Does that include zero? posix_memalign is well documented but says that using a size of 0 is implementation-defined. These functions now produce an error "Unsafe allocation with size of zero is implementation-defined". The associated suppression name has also changed from "BadSize" to "UnsafeZeroSize". Checks for C23 free_sized and free_aligned_sized have been added to Linux. Almost no libraries support these functions yet, with the exception being Google tcmalloc. * ==================== 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. 286849 [PATCH] Interceptors for new/delete on Darwin were erroneously commented out in r12043 306098 s390x: Alternate opcode form for convert to/from fixed and friends 309100 s390x: Testcases for extended BFP 309554 Wrap syscall remap_file_pages (216) 331311 Valgrind shows open files in /proc/self/fd that don't work for the process 338803 Handling of dwz debug alt files or cross-CU is broken 368791 Handle swapon and swapoff syscalls as linux generic 369030 Wrap linux syscall: 171 (setdomainname) 388526 Inconsistent severity in message text: "WARNING: Serious error" 418756 MAP_FIXED_NOREPLACE mmap flag unsupported 454276 Some IPC syscalls is missing for x86 linux 476465 AArch64 ARMv8.3 LDAPR/LDAPRH/LDAPRB instructions not supported 493430 Review all syscalls that use or return (new) file descriptors 493434 Add --track-fds=bad mode (no "leak" tracking) 501741 syscall cachestat not wrapped 502359 Add --modify-fds=yes option 502968 Wrap linux specific syscalls 457 (listmount) and 458 (statmount) 503098 Incorrect NAN-boxing for float registers in RISC-V 503241 s390x: Support z17 changes to the NNPA instruction 503641 close_range syscalls started failing with 3.25.0 503677 duplicated-cond compiler warning in dis_RV64M 503817 s390x: fix 'ordered comparison of pointer with integer zero' compiler warnings 503914 mount syscall param filesystemtype may be NULL 503969 Make test results of make ltpchecks compatible with bunsen 504101 Add a "vgstack" script 504177 FILE DESCRIPTORS banner shows when closing some inherited fds 504265 FreeBSD: missing syscall wrappers for fchroot and setcred 504341 Valgrind killed by LTP syscall testcase setrlimit05 504466 Double close causes SEGV 504904 Hide "bad act handler address" warnings when -q (quiet) flag is set 504909 Hide "Bad oldset address" warnings when -q (quiet) flag is set 504919 Hide "client tried to modify addresses" warnings when -q (quiet) set 504936 Add FreeBSD amd64 sysarch subcommands AMD64_SET_TLSBASE and AMD64_GET_TLSBASE 505228 Wrap linux specific mseal syscall 505673 Valgrind crashes with an internal error and SIGBUS when the guest tries to open its own file with O_WRONLY|O_CREAT|O_TRUNC 506076 unimplemented fcntl command: 1028 (F_CREATED_QUERY) 506499 Unhandled syscall 592 (exterrctl - FreeBSD 506795 Better report which clone flags are problematic 506806 Fix execveat() with AT_FDCWD and relative path 506813 The execveat wrapper needs to do more checking 506816 futex2, futex_waitv WARNING: unhandled amd64-linux syscall: 449 506910 openat2 with RESOLVE_NO_MAGICLINKS succeeds on /proc/self/exe 506928 Wrap (deprecated) linux specific ustat syscall 506929 Wrap (deprecated) linux sysfs syscall 506930 valgrind allows SIGKILL being reset to SIG_DFL 506967 Implement and override mallinfo2 506970 mmap needs an EBADF fd_allowed check 507033 Remove deprecated Iop_Clz32/64 and Iop_Ctz32/64 507173 s390x: Crash when constant folding is disabled 507188 memcheck with track-fds=yes on x86 with popen: Assertion 507720 Review syscalls returning file descriptors (other platforms) 507721 Wire up illumos and Solaris mallinfo 507853 faccessat and faccessat2 should handle AT_FDCWD and absolute paths 507866 fanotify_mark dirfd isn't checked 507867 perf_event_open group_fd isn't checked 507868 futimesat doesn't handle AT_FDCWD 507869 Various at syscalls don't check dirfd argument 507873 Make fchmodat and fchmodat2 syscall wrappers accept AT_FDCWD 507897 Allow for patching LTP sources 507970 -Wcalloc-transposed-args warnings in valgrind-di-server.c 508027 Fix mips32 FTBFS 508029 Review the vmsplice syscall wrapper 508030 Add several missing syscall hooks to ppc64-linux 508093 VALGRIND_CLO_CHANGE does not update vex_control 508145 ppc64le needs ld.so hardwire for strcmp 508328 Memory allegedly uninitialized after ioctl(PROCMAP_QUERY) 508154 PRE(sys_fchownat) not handling VKI_AT_FDCWD 508638 Self-hosting not working on FreeBSD 508777 amd64-linux: add minimal scalar test 508778 syscall-wrapper waitid warns about infop=null 508779 PRE(sys_prlimit64): reorder check for memory validity 508869 x86-linux: simplify scalar test output 508958 FreeBSD: add getgroups and setgroups wrappers 509103 Fix tests/arm64/bug484935.c build with "-O2 -flto -ffat-lto-objects" 509107 memcheck/tests/duplicate_align_size_errors.cpp fails 509139 Update BadSize error messages 509258 FreeBSD: add jail_attach_jd and jail_remove_jd syscall wrappers 509406 FreeBSD 15 issues 509517 s390x: Even/odd lane confusion in various vector insns 509566 Wrap amd64-linux syscall: 442 (mount_setattr) 509572 s390x: Overhaul BFP testsuite 509590 Run the LTP tests with LTP_QUIET 509567 unhandled amd64-linux syscall: 443 (quotactl_fd) 509634 Add ARG4 checks for quotactl and quotactl_fd syswraps 509642 Add missing ppc64-linux syswraps 509643 Add missing s390x-linux syswraps 510169 Update the LTP version in valgrind testsuite to 20250930 510292 Silence false positive failure of LTP munmap01 510436 Don't warn about fcntl F_GETFD with --track-fds 510694 Handle qExecAndArgs remote protocol packet 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. (3.26.0.RC1: 17 Oct 2025) Release 3.25.0 (25 Apr 2025) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux, MIPS64/Linux, RISCV64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, AMD64/MacOSX 10.12, X86/FreeBSD, AMD64/FreeBSD and ARM64/FreeBSD There is also preliminary support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux. * ==================== CORE CHANGES =================== * The valgrind gdbserver now supports the GDB remote protocol packet 'x addr,len' (available in GDB release >= 16). The x packet can reduce the time taken by GDB to read memory from valgrind. * Valgrind now supports zstd compressed debug sections. * The Linux Test Project (ltp) is integrated in the testsuite try 'make ltpchecks' (this will take a while and will point out various missing syscalls and valgrind crashes!) * ================== PLATFORM CHANGES ================= * Added RISCV64 support for Linux. Specifically for the RV64GC instruction set. * Numerous bug fixes for Illumos, in particular fixed a Valgrind crash whenever a signal handler was called. * On FreeBSD, a change to the libc code that runs atexit handlers was causing Helgrind to produce an extra error about exiting threads still holding locks for. This applied to every multithreaded application. The extra error is now filtered out. A syscall wrapper had been added for getrlimitusage. * On Linux various new syscalls are supported (landlock*, io_pgetevents, open_tree, move_mount, fsopen, fsconfig, fsmount, fspick, userfaultfd). * s390x has support for various new instructions (BPP, BPRP, PPA and NIAI). * ==================== TOOL CHANGES =================== * The --track-fds=yes and --track-fds=all options now treat all inherited file descriptors the same as 0, 1, 2 (stdin/out/err). And when the stdin/out/err descriptors are reassigned they are now treated as normal (non-inherited) file descriptors. * A new option --modify-fds=high can be used together with --track-fds=yes to create new file descriptors with the highest possible number (and then decreasing) instead of always using the lowest possible number (which is required by POSIX). This will help catch issues where a file descriptor number might normally be reused between a close and another open call. * Helgrind: There is a change to warnings about calls to pthread_cond_signal and pthread_cond_broadcast when the associated mutex is unlocked. Previously Helgrind would always warn about this. Now this error is controlled by a command line option, --check-cond-signal-mutex=yes|no. The default is no. This change has been made because some C and C++ standard libraries use pthread_cond_signal/pthread_cond_broadcast in this way. Users are obliged to use suppressions if they wish to avoid this noise. * ==================== 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. 290061 pie elf always loaded at 0x108000 396415 Valgrind is not looking up $ORIGIN rpath of shebang programs 420682 io_pgetevents is not supported 468575 Add support for RISC-V 469782 Valgrind does not support zstd-compressed debug sections 487296 --track-fds=yes and --track-fds=all report erroneous information when fds 0, 1, or 2 are used as non-std 489913 WARNING: unhandled amd64-linux syscall: 444 (landlock_create_ruleset) 493433 Add --modify-fds=[no|high] option 494246 syscall fsopen not wrapped 494327 Crash when running Helgrind built with #define TRACE_PTH_FNS 1 494337 All threaded applications cause still holding lock errors 495488 Add FreeBSD getrlimitusage syscall wrapper 495816 s390x: Fix disassembler segfault for C[G]RT and CL[G]RT 495817 s390x: Disassembly to match objdump -d output 496370 Illumos: signal handling is broken 496571 False positive for null key passed to bpf_map_get_next_key syscall. 496950 s390x: Fix hardware capabilities and EmFail codes 497130 Recognize new DWARF5 DW_LANG constants 497455 Update drd/scripts/download-and-build-gcc 497723 Enabling Ada demangling breaks callgrind differentiation between overloaded functions and procedures 498037 s390x: Add disassembly checker 498143 False positive on EVIOCGRAB ioctl 498317 FdBadUse is not a valid CoreError type in a suppression even though it's generated by --gen-suppressions=yes 498421 s390x: support BPP, BPRP and NIAI insns 498422 s390x: Fix VLRL and VSTRL insns 498492 none/tests/amd64/lzcnt64 crashes on FreeBSD compiled with clang 498629 s390x: Fix S[L]HHHR and S[L]HHLR insns 498632 s390x: Fix LNGFR insn 498942 s390x: Rework s390_disasm interface 499183 FreeBSD: differences in avx-vmovq output 499212 mmap() with MAP_ALIGNED() returns unaligned pointer 501119 memcheck/tests/pointer-trace fails when run on NFS filesystem 501194 Fix ML_(check_macho_and_get_rw_loads) so that it is correct for any number of segment commands 501348 glibc built with -march=x86-64-v3 does not work due to ld.so memcmp 501479 Illumos DRD pthread_mutex_init wrapper errors 501365 syscall userfaultfd not wrapped 501846 Add x86 Linux shm wrappers 501850 FreeBSD syscall arguments 7 and 8 incorrect. 501893 Missing suppression for __wcscat_avx2 (strcat-strlen-avx2.h.S:68)? 502126 glibc 2.41 extra syscall_cancel frames 502288 s390x: Memcheck false positives with NNPA last tensor dimension 502324 s390x: Memcheck false positives with TMxx and TM/TMY 502679 Use LTP for testing valgrind 502871 Make Helgrind "pthread_cond_{signal,broadcast}: dubious: associated lock is not held by any thread" optional 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. (3.25.0.RC1: 18 Apr 2025) (3.25.0.RC2: 23 Apr 2025) Release 3.24.0 (31 Oct 2024) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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, AMD64/FreeBSD and ARM64/FreeBSD There is also preliminary support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux. * ==================== CORE CHANGES =================== * Bad file descriptor usage now generates a real error with --track-fds=yes that is suppressible and shows up in the xml output with full execution backtrace. The warnings shown without using the option are deprecated and will be removed in a future valgrind version. * Ada name demangling is now supported in error messages. * ================== PLATFORM CHANGES ================= * S390X added support for the DFLTCC instruction provided by the deflate-conversion facility (z15/arch13). * S390X added support for the instructions provided by the MSA facility and MSA extensions 1-9. * ==================== TOOL CHANGES =================== * ==================== 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. 202770 open fd at exit --log-socket=127.0.0.1:1500 with --track-fds=yes 276780 An instruction in fftw (Fast Fourier Transform) is unhandled by valgrind: vex x86->IR: unhandled instruction bytes: 0x66 0xF 0x3A 0x2 311655 --log-file=FILE leads to apparent fd leak 317127 Fedora18/x86_64 --sanity-level=3 : aspacem segment mismatch 337388 fcntl works on Valgrind's own file descriptors 377966 arm64 unhandled instruction dc zva392146 aarch64: unhandled instruction 0xD5380001 (MRS rT, midr_el1) 391148 Unhandled AVX instruction vmovq %xmm9,%xmm1 392146 aarch64: unhandled instruction 0xD5380001 (MRS rT, midr_el1) 412377 SIGILL on cache flushes on arm64 417572 vex amd64->IR: unhandled instruction bytes: 0xC5 0x79 0xD6 0xED 0xC5 440180 s390x: Failed assertion in disassembler 444781 MIPS: wrong syscall numbers used 447989 Support Armv8.2 SHA-512 instructions 445235 Java/Ada/D demangling is probably broken 453044 gbserver_tests failures in aarch64 479661 Valgrind leaks file descriptors 486180 [Valgrind][MIPS] 'VexGuestArchState' has no member named 'guest_IP_AT_SYSCALL' 486293 memccpy false positives 486569 linux inotify_init syscall wrapper missing POST entry in syscall_table 487439 SIGILL in JDK11, JDK17 487993 Alignment error when using Eigen with Valgrind and -m32 488026 Use of `sizeof` instead of `strlen 488379 --track-fds=yes errors that cannot be suppressed with --xml-file= 488441 Add tests for --track-fds=yes --xml=yes and fd suppression tests 489040 massif trace change to show the location increasing the stack 489088 Valgrind throws unhandled instruction bytes: 0xC5 0x79 0xD6 0xE0 0xC5 489338 arm64: Instruction fcvtas should round 322.5 to 323, but result is 322. 489676 vgdb handle EINTR and EAGAIN more consistently 490651 Stop using -flto-partition=one 491394 (vgModuleLocal_addDiCfSI): Assertion 'di->fsm.have_rx_map && di->fsm.rw_map_count' failed 492210 False positive on x86/amd64 with ZF taken directly from addition 492214 statx(fd, NULL, AT_EMPTY_PATH) is supported since Linux 6.11 but not supported in valgrind 492422 Please support DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD 492663 Valgrind ignores debug info for some binaries 493418 Add bad fd usage errors for --track-fds in ML_(fd_allowed) 493454 Missing FUSE_COMPATIBLE_MAY_BLOCK markers 493507 direct readlink syscall from PRE handler is incompatible with FUSE_COMPATIBLE_MAY_BLOCK 493959 s390x: Fix regtest failure for none/tests/s390x/op00 493970 s390x: Store/restore FPC upon helper call causes slowdown 494218 Remove FREEBSD_VERS from configure and build 494252 s390x: incorrect disassembly for LOCHI and friends 494960 Fixes and tweaks for gsl19test 495278 PowerPC instruction dcbf should allow the L field values of 4, 6 on ISA 3.0 and earlier, just ignore the value 495469 aligned_alloc and posix_memalign missing MALLOC_TRACE with returned pointer 495470 s390x: 3.24.0.RC1 missing file and regtest failure n-i-bz Improve messages for sigaltstack errors, use specific stack_t member names 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. (3.24.0.RC1: 27 Oct 2024) Release 3.23.0 (26 Apr 2024) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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, AMD64/FreeBSD and ARM64/FreeBSD There is also preliminary support for X86/macOS 10.13, AMD64/macOS 10.13 and nanoMIPS/Linux. * ==================== CORE CHANGES =================== * --track-fds=yes will now also warn about double closing of file descriptors. Printing the context where the file descriptor was originally opened and where it was previously closed. * --track-fds=yes also produces "real" errors now which can be suppressed and work with --error-exitcode. When combined with --xml the xml-output now also includes FdBadClose and FdNotClosed error kinds (see docs/internals/xml-output-protocol5.txt). * The option --show-error-list=no|yes now accepts a new value all. This indicates to also print the suppressed errors. This is useful to analyse which errors are suppressed by which suppression entries. The valgrind monitor command 'v.info all_errors' similarly now accepts a new optional argument 'also_suppressed' to show all errors including the suppressed errors. * ================== PLATFORM CHANGES ================= * Added ARM64 support for FreeBSD. * ARM64 now supports dotprod instructions (sdot/udot). * AMD64 better supports code build with -march=x86-64-v3. fused-multiple-add instructions (fma) are now emulated more accurately. And memcheck now handles __builtin_strcmp using 128/256 bit vectors with sse4.1, avx/avx2. * S390X added support for NNPA (neural network processing assist) facility vector instructions VCNF, VCLFNH, VCFN, VCLFNL, VCRNF and NNPA (z16/arch14). * X86 recognizes new binutils-2.42 nop patterns. * ==================== TOOL CHANGES =================== * The none tool now also supports xml output. * ==================== 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. 283429 ARM leak checking needs CLEAR_CALLER_SAVED_REGS 281059 Cannot connect to Oracle using valgrind 328563 make track-fds support xml output 362680 --error-exitcode not honored when file descriptor leaks are found 369723 __builtin_longjmp not supported in clang/llvm on Android arm64 target 390269 unhandled amd64-darwin syscall: unix:464 (openat_nocancel) 401284 False positive "Source and destination overlap in strncat" 428364 Signals inside io_uring_enter not handled 437790 valgrind reports "Conditional jump or move depends on uninitialised value" in memchr of macOS 10.12-10.15 460616 disInstr(arm64): unhandled instruction 0x4E819402 (dotprod/ASIMDDP) 463458 memcheck/tests/vcpu_fnfns fails when glibc is built for x86-64-v3 463463 none/tests/amd64/fma fails when executed on a x86-64-v3 system 466762 Add redirs for C23 free_sized() and free_aligned_sized() 466884 Missing writev uninit padding suppression for _XSend 471036 disInstr_AMD64: disInstr miscalculated next %rip on RORX imm8, m32/64, r32/6 471222 support tracking of file descriptors being double closed 474160 If errors-for-leak-kinds is specified, exit-on-first-error should only exit on one of the listed errors. 475498 Add reallocarray wrapper 476025 Vbit expected test results for Iop_CmpGT64Ux2 are wrong 476320 Build failure with GCC 476331 clean up generated/distributed filter scripts 476535 Difference in allocation size for massif/tests/overloaded-new between clang++/libc++ and g++/libstdc++ 476548 valgrind 3.22.0 fails on assertion when loading debuginfo file produced by mold 476708 valgrind-monitor.py regular expressions should use raw strings 476780 Extend strlcat and strlcpy wrappers to GNU libc 476787 Build of Valgrind 3.21.0 fails when SOLARIS_PT_SUNDWTRACE_THRP is defined 476887 WARNING: unhandled amd64-freebsd syscall: 578 477198 Add fchmodat2 syscall on linux 477628 Add mremap support for Solaris 477630 Include ucontext.h rather than sys/ucontext.h in Solaris sources 477719 vgdb incorrectly replies to qRcmd packet 478211 Redundant code for vgdb.c and Valgrind core tools 478624 Valgrind incompatibility with binutils-2.42 on x86 with new nop patterns (unhandled instruction bytes: 0x2E 0x8D 0xB4 0x26 478837 valgrind fails to read debug info for rust binaries 479041 Executables without RW sections do not trigger debuginfo reading 480052 WARNING: unhandled amd64-freebsd syscall: 580 480126 Build failure on Raspberry Pi 5 / OS 6.1.0-rpi7-rpi-v8 480405 valgrind 3.22.0 "m_debuginfo/image.c:586 (set_CEnt): Assertion '!sr_isError(sr)' failed." 480488 Add support for FreeBSD 13.3 480706 Unhandled syscall 325 (mlock2) 481127 amd64: Implement VFMADD213 for Iop_MAddF32 481131 [PATCH] x86 regtest: fix clobber lists in generated asm statements 481676 Build failure on Raspberry Pi 5 Ubuntu 23.10 with clang 481874 Add arm64 support for FreeBSD 483786 Incorrect parameter indexing in FreeBSD clock_nanosleep syscall wrapper 484002 Add suppression for invalid read in glibc's __wcpncpy_avx2() via wcsxfrm() 484426 aarch64: 0.5 gets rounded to 0 484480 False positives when using sem_trywait 484935 [patch] Valgrind reports false "Conditional jump or move depends on uninitialised value" errors for aarch64 signal handlers 485148 vfmadd213ss instruction is instrumented incorrectly (the remaining part of the register is cleared instead of kept unmodified) 485487 glibc built with -march=x86-64-v3 does not work due to ld.so strcmp 485778 Crash with --track-fds=all and --gen-suppressions=all n-i-bz Add redirect for memccpy 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. (3.23.0.RC1: 19 Apr 2024) (3.23.0.RC2: 24 Apr 2024) Release 3.22.0 (31 Oct 2023) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 =================== * A new configure option --with-gdbscripts-dir lets you install the gdb valgrind python monitor scripts in a specific location. For example a distro could use it to install the scripts in a safe load location --with-gdbscripts-dir=%{_datadir}/gdb/auto-load It is also possible to configure --without-gdb-scripts-dir so no .debug_gdb_scripts section is added to the vgpreload library and no valgrind-monitor python scripts are installed at all. * ================== PLATFORM CHANGES ================= * Support has been added for FreeBSD 14 and FreeBSD 15. * Add support for the folllowing FreeBSD system calls: close_range, kqueuex, membarrier, timerfd_create, timerfd_settime and timerfd_gettime (all added in FreeBSD 15). * ==================== TOOL CHANGES =================== * Memcheck now tests and warns about the values used for alignment and size. These apply to various functions: memalign, posix_memalign and aligned_alloc in C and various overloads of operators new and delete in C++. The kinds of error that can be detected are - invalid alignment, for instance the alignment is usually required to be a power of 2 - mismatched alignment between aligned allocation and aligned deallocation - mismatched size when sized delete is used - bad size for functions that have implementation defined behaviour when the requested size is zero * Cachegrind: - You can now profile part of a program's execution using the new `CACHEGRIND_START_INSTRUMENTATION` and `CACHEGRIND_STOP_INSTRUMENTATION` client requests, along with the new `--instr-at-start` option. The behaviour is the same as Callgrind's equivalent functionality. * ==================== 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. 390871 ELF debug info reader confused with multiple .rodata* sections 417993 vbit-test fail on s390x with Iop_Add32: spurious dependency on uninit 426751 Valgrind reports "still reachable" memory using musl (alpine running inside docker) 432801 Valgrind 3.16.1 reports a jump based on uninitialized memory somehow related to clang and signals 433857 Add validation to C++17 aligned new/delete alignment size 433859 Add mismatched detection to C++ 17 aligned new/delete 460192 Add epoll_pwait2 461074 DWARF2 CFI reader: unhandled DW_OP_ 0x11 (consts) DW_OP_ 0x92 (bregx) 465782 s390x: Valgrind doesn't compile with Clang on s390x 466105 aligned_alloc problems, part 2 467441 Add mismatched detection to C++ 14 sized delete 469049 link failure on ppc64 (big endian) valgrind 3.20 469146 massif --ignore-fn does not ignore inlined functions 469768 Make it possible to install gdb scripts in a different location 470121 Can't run callgrind_control with valgrind 3.21.0 because of perl errors 470132 s390x: Assertion failure on VGM instruction 470520 Multiple realloc zero errors crash in MC_(eq_Error) 470713 Failure on the Yosys project: valgrind: m_libcfile.c:1802 (Bool vgPlain_realpath(const HChar *, HChar *)): Assertion 'resolved' failed 470830 Don't print actions vgdb me ... continue for vgdb --multi mode 470978 s390x: Valgrind cannot start qemu-kvm when "sysctl vm.allocate_pgste=0" 471311 gdb --multi mode stdout redirecting to stderr 471807 Add support for lazy reading and downloading of DWARF debuginfo 472219 Syscall param ppoll(ufds.events) points to uninitialised byte(s) 472875 none/tests/s390x/dfp-1 failure 472963 Broken regular expression in configure.ac 473604 Fix bug472219.c compile failure with Clang 16 473677 make check compile failure with Clang 16 based on GCC 13.x 473745 must-be-redirected function - strlen 473870 FreeBSD 14 applications fail early at startup 473944 Handle mold linker split RW PT_LOAD segments correctly 474332 aligned_alloc under Valgrind returns nullptr when alignment is not a multiple of sizeof(void *) 475650 DRD does not work with C11 threads 475652 Missing suppression for __wcsncpy_avx2 (strncpy-avx2.S:308)? 476108 vg_replace_malloc DELETE checks size n-i-bz Allow arguments with spaces in .valgrindrc files n-i-bz FreeBSD fixed reading of Valgrind tools own debuginfo 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. (3.22.0.RC1: 17 Oct 2023) (3.22.0.RC2: 26 Oct 2023) Release 3.21.0 (28 Apr 2023) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 =================== * When GDB is used to debug a program running under valgrind using the valgrind gdbserver, GDB will automatically load some python code provided in valgrind defining GDB front end commands corresponding to the valgrind monitor commands. These GDB front end commands accept the same format as the monitor commands directly sent to the Valgrind gdbserver. These GDB front end commands provide a better integration in the GDB command line interface, so as to use for example GDB auto-completion, command specific help, searching for a command or command help matching a regexp, ... For relevant monitor commands, GDB will evaluate arguments to make the use of monitor commands easier. For example, instead of having to print the address of a variable to pass it to a subsequent monitor command, the GDB front end command will evaluate the address argument. It is for example possible to do: (gdb) memcheck who_points_at &some_struct sizeof(some_struct) instead of: (gdb) p &some_struct $2 = (some_struct_type *) 0x1130a0 (gdb) p sizeof(some_struct) $3 = 40 (gdb) monitor who_point_at 0x1130a0 40 * The vgdb utility now supports extended-remote protocol when invoked with --multi. In this mode the GDB run command is supported. Which means you don't need to run gdb and valgrind from different terminals. So for example to start your program in gdb and run it under valgrind you can do: $ gdb prog (gdb) set remote exec-file prog (gdb) set sysroot / (gdb) target extended-remote | vgdb --multi (gdb) start * The behaviour of realloc with a size of zero can now be changed for tools that intercept malloc. Those tools are memcheck, helgrind, drd, massif and dhat. Realloc implementations generally do one of two things - free the memory like free() and return NULL (GNU libc and ptmalloc). - either free the memory and then allocate a minimum sized block or just return the original pointer. Return NULL if the allocation of the minimum sized block fails (jemalloc, musl, snmalloc, Solaris, macOS). When Valgrind is configured and built it will try to match the OS and libc behaviour. However if you are using a non-default library to replace malloc and family (e.g., musl on a glibc Linux or tcmalloc on FreeBSD) then you can use a command line option to change the behaviour of Valgrind: --realloc-zero-bytes-frees=yes|no [yes on Linux glibc, no otherwise] * ================== PLATFORM CHANGES ================= * Make the address space limit on FreeBSD amd64 128Gbytes (the same as Linux and Solaris, it was 32Gbytes) * ==================== TOOL CHANGES =================== * Memcheck: - When doing a delta leak_search, it is now possible to only output the new loss records compared to the previous leak search. This is available in the memcheck monitor command 'leak_search' by specifying the "new" keyword or in your program by using the client request VALGRIND_DO_NEW_LEAK_CHECK. Whenever a "delta" leak search is done (i.e. when specifying "new" or "increased" or "changed" in the monitor command), the new loss records have a "new" marker. - Valgrind now contains python code that defines GDB memcheck front end monitor commands. See CORE CHANGES. - Performs checks for the use of realloc with a size of zero. This is non-portable and a source of errors. If memcheck detects such a usage it will generate an error realloc() with size 0 followed by the usual callstacks. A switch has been added to allow this to be turned off: --show-realloc-size-zero=yes|no [yes] * Helgrind: - The option ---history-backtrace-size= allows to configure the number of entries to record in the stack traces of "old" accesses. Previously, this number was hardcoded to 8. - Valgrind now contains python code that defines GDB helgrind front end monitor commands. See CORE CHANGES. * Cachegrind: - `--cache-sim=no` is now the default. The cache simulation is old and unlikely to match any real modern machine. This means only the `Ir` event are gathered by default, but that is by far the most useful event. - `cg_annotate`, `cg_diff`, and `cg_merge` have been rewritten in Python. As a result, they all have more flexible command line argument handling, e.g. supporting `--show-percs` and `--no-show-percs` forms as well as the existing `--show-percs=yes` and `--show-percs=no`. - `cg_annotate` has some functional changes. - It's much faster, e.g. 3-4x on common cases. - It now supports diffing (with `--diff`, `--mod-filename`, and `--mod-funcname`) and merging (by passing multiple data files). - It now provides more information at the file and function level. There are now "File:function" and "Function:file" sections. These are very useful for programs that use inlining a lot. - Support for user-annotated files and the `-I`/`--include` option has been removed, because it was of little use and blocked other improvements. - The `--auto` option is renamed `--annotate`, though the old `--auto=yes`/`--auto=no` forms are still supported. - `cg_diff` and `cg_merge` are now deprecated, because `cg_annotate` now does a better job of diffing and merging. - The Cachegrind output file format has changed very slightly, but in ways nobody is likely to notice. * Callgrind: - Valgrind now contains python code that defines GDB callgrind front end monitor commands. See CORE CHANGES. * Massif: - Valgrind now contains python code that defines GDB massif front end monitor commands. See CORE CHANGES. * DHAT: - A new kind of user request has been added which allows you to override the 1024 byte limit on access count histograms for blocks of memory. The client request is DHAT_HISTOGRAM_MEMORY. * ==================== 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. 170510 Don't warn about ioctl of size 0 without direction hint 241072 List tools in --help output 327548 false positive while destroying mutex 382034 Testcases build fixes for musl 351857 confusing error message about valid command line option 374596 inconsistent RDTSCP support on x86_64 392331 Spurious lock not held error from inside pthread_cond_timedwait 397083 Likely false positive "uninitialised value(s)" for __wmemchr_avx2 and __wmemcmp_avx2_movbe 400793 pthread_rwlock_timedwrlock false positive 419054 Unhandled syscall getcpu on arm32 433873 openat2 syscall unimplemented on Linux 434057 Add stdio mode to valgrind's gdbserver 435441 valgrind fails to interpose malloc on musl 1.2.2 due to weak symbol name and no libc soname 436413 Warn about realloc of size zero 439685 compiler warning in callgrind/main.c 444110 priv/guest_ppc_toIR.c:36198:31: warning: duplicated 'if' condition. 444487 hginfo test detects an extra lock inside data symbol "_rtld_local" 444488 Use glibc.pthread.stack_cache_size tunable 444568 drd/tests/pth_barrier_thr_cr fails on Fedora 38 445743 "The impossible happened: mutex is locked simultaneously by two threads" while using mutexes with priority inheritance and signals 449309 Missing loopback device ioctl(s) 459476 vgdb: allow address reuse to avoid "address already in use" errorsuse" errors 460356 s390: Sqrt32Fx4 -- cannot reduce tree 462830 WARNING: unhandled amd64-freebsd syscall: 474 463027 broken check for MPX instruction support in assembler 464103 Enhancement: add a client request to DHAT to mark memory to be histogrammed 464476 Firefox fails to start under Valgrind 464609 Valgrind memcheck should support Linux pidfd_open 464680 Show issues caused by memory policies like selinux deny_execmem 464859 Build failures with GCC-13 (drd tsan_unittest) 464969 D language demangling 465435 m_libcfile.c:66 (vgPlain_safe_fd): Assertion 'newfd >= VG_(fd_hard_limit)' failed. 466104 aligned_alloc problems, part 1 467036 Add time cost statistics for Regtest 467482 Build failure on aarch64 Alpine 467714 fdleak_* and rlimit tests fail when parent process has more than 64 descriptors opened 467839 Gdbserver: Improve compatibility of library directory name 468401 [PATCH] Add a style file for clang-format 468556 Build failure for vgdb 468606 build: remove "Valgrind relies on GCC" check/output 469097 ppc64(be) doesn't support SCV syscall instruction n-i-bz FreeBSD rfork syscall fail with EINVAL or ENOSYS rather than VG_(unimplemented) 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. * ==================== KNOWN ISSUES =================== * configure --enable-lto=yes is know to not work in all setups. See bug 469049. Workaround: Build without LTO. (3.21.0.RC1: 14 Apr 2023) (3.21.0.RC2: 21 Apr 2023) Release 3.20.0 (24 Oct 2022) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 option "--vgdb-stop-at=event1,event2,..." accepts the new value abexit. This indicates to invoke gdbserver when your program exits abnormally (i.e. with a non zero exit code). * 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 * The option --enable-debuginfod= [default: yes] has been added on Linux. * More DWARF5 support as generated by clang14. * ==================== 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. 131186 writev reports error in (vector[...]) 434764 iconv_open causes ld.so v2.28+ to use optimised strncmp 446754 Improve error codes from alloc functions under memcheck 452274 memcheck crashes with Assertion 'sci->status.what == SsIdle' failed 452779 Valgrind fails to build on FreeBSD 13.0 with llvm-devel (15.0.0) 453055 shared_timed_mutex drd test fails with "Lock shared failed" message 453602 Missing command line option to enable/disable debuginfod 452802 Handle lld 9+ split RW PT_LOAD segments correctly 454040 s390x: False-positive memcheck:cond in memmem on arch13 systems 456171 [PATCH] FreeBSD: Don't record address errors when accessing the 'kern.ps_strings' sysctl struct n-i-bz Implement vgdb invoker on FreeBSD 458845 PowerPC: The L field for the dcbf and sync instruction should be 3 bits in ISA 3.1. 458915 Remove register cache to fix 458915 gdbserver causes wrong syscall return 459031 Documentation on --error-exitcode incomplete 459477 XERROR messages lacks ending '\n' in vgdb 462007 Implicit int in none/tests/faultstatus.c 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. (3.20.0.RC1: 20 Oct 2022) Release 3.19.0 (11 Apr 2022) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 495483 Control building documentation via BUILD_DOCS 506211 Constant folding improvements 506453 Unexpected behaviour with IR injection and vex-guest-chase=yes 509157 riscv64: Shift instructions can behave wrong 510840 Use objdump for disassembly in VEX (s390x only) 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)