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- Support instruction tracking on arm64 for data type profiling, resolving stack, global, per-CPU and 'current' variable accesses, so that 'perf annotate --data-type' resolves types on arm64 the way it does on x86. - Port the Python scripts to the perf module and standalone execution, and improve the module: lazy sample callchains and event copies, GIL handling, better session/thread lookup, new treport, flamegraph and sqlite/postgres exporters. - Reenable and fix the attribute expectation test suite: per-PMU bit masks, other core PMUs' events, dummy tracking events, group checks and spelled out skip reasons. - perf trace: filter the target's tasks in BPF, open the BPF output event on every CPU, add an option to disable syscall augmentation and raise TRACE_AUG_MAX_BUF. - perf jitdump: harden record parsing, validating unwinding sizes and symbol names, byte-swapping debug entries via safe accessors and fixing frees on error paths. - perf annotate-data fixes: bound the member nesting recursion, resolve type DIEs in the debug file they came from, adjust the offset for flex-arrays and show the sample count in the data-type browser. - perf symbol and debug info: try linked debug files for DSOs, avoid repeated failing searches, set binary/symtab types for split kallsyms, JIT maps and the build-id cache, fix libbfd symbol loading. - perf config: serialize config file access with a mutex, add the DEFINE_MUTEX() and DO_ONCE() primitives and a robust process shared mutex, add the core.hybrid-merge option. - perf report: add --progress and --no-progress options. - perf mem: add a false sharing workload to 'perf test', request PERF_SAMPLE_CPU by default, use the IBS swfilt filter when available and decode L0 in the memory level. - perf test: take turns using the perf mlock budget in the mmaping tests, add the 'needs_mlock' suite flag, scope the probe based tests to their PID and make more tests non-exclusive. - perf vendor events intel: update events and metrics to TMA 5.2, refresh the event tables and fix umask encodings. - perf build: run shellcheck, mypy and pylint in parallel, make pylint opt-out with NO_PYLINT=1, fix clean and install dependencies. - Add a script and a 'make sync-headers' target to sync the tools/ copies of kernel headers with the kernel sources, plus the resulting syncs of the cpufeatures, KVM, fs, mount, fcntl, socket, rtnetlink, if_addr and sound headers. - Fix cs-etm HW_ID mapping synthesis for raw trace, queue teardown leaks and duplicate v0 global mappings. - Add a 'perf bench atomic' benchmark for atomic operations. - Filter events before creating lock_stat in 'perf lock contention'. - Add a 'perf test' case for events re-armed with PERF_EVENT_IOC_REFRESH. - Fix memory leaks on 'perf c2c' output fields and add function view stdio coverage to its test. - Fix a NULL dereference resolving callchains in 'perf machine'. - Optimize the libdw fallback when DWARF is missing and try the symbol file first when checking for debuginfo. - Don't call eprintf() in pr_debugN() when not verbose. - Don't delete cumulative caller entries before the stat_acc decays in 'perf report'. - Fix ring buffer cursor handling: keep the consumed cursor in forward mode and use the head selected by read_init. - Fix 'perf test mmap-basic' user rdpmc detection and only test userspace reading on supported platforms. - Build fixes: include sys/types.h for ssize_t, errno.h before kernel headers and fix jevents.py type annotations for mypy 2.x. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCauUL4QAKCRCyPKLppCJ+ JzsyAQCNjqGOBYEUaDbQAbK1/1h9D9QER9s+4aU3Np2zT9XSPAD/RkY12uxT3YAO NcQlaj0On+I46SkgyGzGrV9mOvDZJwo= =b9um -----END PGP SIGNATURE----- Merge tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next Pull perf tool updates from Arnaldo Carvalho de Melo: - Support instruction tracking on arm64 for data type profiling, resolving stack, global, per-CPU and 'current' variable accesses, so that 'perf annotate --data-type' resolves types on arm64 the way it does on x86. - Port the Python scripts to the perf module and standalone execution, and improve the module: lazy sample callchains and event copies, GIL handling, better session/thread lookup, new treport, flamegraph and sqlite/postgres exporters. - Reenable and fix the attribute expectation test suite: per-PMU bit masks, other core PMUs' events, dummy tracking events, group checks and spelled out skip reasons. - perf trace: filter the target's tasks in BPF, open the BPF output event on every CPU, add an option to disable syscall augmentation and raise TRACE_AUG_MAX_BUF. - perf jitdump: harden record parsing, validating unwinding sizes and symbol names, byte-swapping debug entries via safe accessors and fixing frees on error paths. - perf annotate-data fixes: bound the member nesting recursion, resolve type DIEs in the debug file they came from, adjust the offset for flex-arrays and show the sample count in the data-type browser. - perf symbol and debug info: try linked debug files for DSOs, avoid repeated failing searches, set binary/symtab types for split kallsyms, JIT maps and the build-id cache, fix libbfd symbol loading. - perf config: serialize config file access with a mutex, add the DEFINE_MUTEX() and DO_ONCE() primitives and a robust process shared mutex, add the core.hybrid-merge option. - perf report: add --progress and --no-progress options. - perf mem: add a false sharing workload to 'perf test', request PERF_SAMPLE_CPU by default, use the IBS swfilt filter when available and decode L0 in the memory level. - perf test: take turns using the perf mlock budget in the mmaping tests, add the 'needs_mlock' suite flag, scope the probe based tests to their PID and make more tests non-exclusive. - perf vendor events intel: update events and metrics to TMA 5.2, refresh the event tables and fix umask encodings. - perf build: run shellcheck, mypy and pylint in parallel, make pylint opt-out with NO_PYLINT=1, fix clean and install dependencies. - Add a script and a 'make sync-headers' target to sync the tools/ copies of kernel headers with the kernel sources, plus the resulting syncs of the cpufeatures, KVM, fs, mount, fcntl, socket, rtnetlink, if_addr and sound headers. - Fix cs-etm HW_ID mapping synthesis for raw trace, queue teardown leaks and duplicate v0 global mappings. - Add a 'perf bench atomic' benchmark for atomic operations. - Filter events before creating lock_stat in 'perf lock contention'. - Add a 'perf test' case for events re-armed with PERF_EVENT_IOC_REFRESH. - Fix memory leaks on 'perf c2c' output fields and add function view stdio coverage to its test. - Fix a NULL dereference resolving callchains in 'perf machine'. - Optimize the libdw fallback when DWARF is missing and try the symbol file first when checking for debuginfo. - Don't call eprintf() in pr_debugN() when not verbose. - Don't delete cumulative caller entries before the stat_acc decays in 'perf report'. - Fix ring buffer cursor handling: keep the consumed cursor in forward mode and use the head selected by read_init. - Fix 'perf test mmap-basic' user rdpmc detection and only test userspace reading on supported platforms. - Build fixes: include sys/types.h for ssize_t, errno.h before kernel headers and fix jevents.py type annotations for mypy 2.x. * tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (425 commits) perf machine: Fix NULL deref in thread__resolve_callchain_sample() perf pmu-events: Fix jevents.py type annotations for mypy 2.x perf parse-events: Include errno.h before kernel headers perf print_insn: Include sys/types.h for ssize_t perf tests mmap-basic: Fix user rdpmc detection logic perf tests mmap-basic: Only test userspace reading on supported platforms perf mmap: Preserve the consumed cursor in forward mode perf mmap: Use the head selected by read_init perf hist: Do not delete cumulative caller entries before stat_acc decays perf debug: Avoid calling eprintf() in pr_debugN() when verbose < n perf libdw: Optimize fallback logic for missing DWARF tools headers: Sync KVM headers with the kernel sources tools headers: Sync UAPI sound/asound.h with the kernel sources tools headers: Sync UAPI linux/mount.h with the kernel sources tools headers: Sync UAPI linux/fs.h with the kernel sources tools headers: Sync UAPI linux/fcntl.h with the kernel sources tools headers: Sync linux/socket.h with the kernel sources tools arch x86: Sync the cpufeatures.h copy with the kernel sources tools headers UAPI: Sync linux/rtnetlink.h with the kernel sources tools headers UAPI: Sync linux/if_addr.h with the kernel sources ... |
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| asm | ||
| asm-generic | ||
| generated | ||
| io_uring | ||
| linux | ||
| nolibc | ||
| perf | ||
| tools | ||
| trace/events | ||
| uapi | ||
| vdso | ||