And move the existing one to fsmount_attr.sh to be more precise.
Now the fsmount_flags[] is generated from the mount.h like below.
The ilog2() + 1 is an existing pattern to handle bit flags.
$ cat tools/perf/trace/beauty/generated/fsmount_arrays.c
static const char *fsmount_flags[] = {
[ilog2(0x00000001) + 1] = "CLOEXEC",
[ilog2(0x00000002) + 1] = "NAMESPACE",
};
It was found by Sashiko during the review.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
9d4e752a24 ("namespace: allow creating empty mount namespaces")
c8134b5f13 ("pidfd: add CLONE_PIDFD_AUTOKILL")
24baca56fa ("clone: add CLONE_NNP")
12ae2c81b2 ("clone: add CLONE_AUTOREAP")
2e7af19269 ("sched/deadline: Add reporting of runtime left & ...")
This would be used to beautify scheduler syscall arguments and not to
affect builds of other tools (e.g. objtool).
Please see tools/include/uapi/README.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
5e8969bd19 ("mount: add FSMOUNT_NAMESPACE")
This would be used to beautify mount syscall arguments and not to
affect builds of other tools (e.g. objtool).
Please see tools/include/uapi/README.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
1f662195db ("fs: add generic FS_IOC_SHUTDOWN definitions")
This would be used to beautify filesystem syscall arguments and not to
affect builds of other tools (e.g. objtool).
Please see tools/include/uapi/README.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
c66e0f453d ("net: use ktime_t in struct scm_timestamping_internal")
This would be used to beautify networking syscall arguments and not to
affect builds of other tools (e.g. objtool).
Please see tools/include/uapi/README.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Pull perf tools updates from Namhyung Kim:
"perf report:
- Add 'comm_nodigit' sort key to combine similar threads that only
have different numbers in the comm. In the following example, the
'comm_nodigit' will have samples from all threads starting with
"bpfrb/" into an entry "bpfrb/<N>".
$ perf report -s comm_nodigit,comm -H
...
#
# Overhead CommandNoDigit / Command
# ........... ........................
#
20.30% swapper
20.30% swapper
13.37% chrome
13.37% chrome
10.07% bpfrb/<N>
7.47% bpfrb/0
0.70% bpfrb/1
0.47% bpfrb/3
0.46% bpfrb/2
0.25% bpfrb/4
0.23% bpfrb/5
0.20% bpfrb/6
0.14% bpfrb/10
0.07% bpfrb/7
- Support flat layout for symfs. The --symfs option is to specify the
location of debugging symbol files. The default 'hierarchy' layout
would search the symbol file using the same path of the original
file under the symfs root. The new 'flat' layout would search only
in the root directory.
- Update 'simd' sort key for ARM SIMD flags to cover ASE/SME and more
predicate flags.
perf stat:
- Add --pmu-filter option to select specific PMUs. This would be
useful when you measure metrics from multiple instance of uncore
PMUs with similar names.
# perf stat -M cpa_p0_avg_bw
Performance counter stats for 'system wide':
19,417,779,115 hisi_sicl0_cpa0/cpa_cycles/ # 0.00 cpa_p0_avg_bw
0 hisi_sicl0_cpa0/cpa_p0_wr_dat/
0 hisi_sicl0_cpa0/cpa_p0_rd_dat_64b/
0 hisi_sicl0_cpa0/cpa_p0_rd_dat_32b/
19,417,751,103 hisi_sicl10_cpa0/cpa_cycles/ # 0.00 cpa_p0_avg_bw
0 hisi_sicl10_cpa0/cpa_p0_wr_dat/
0 hisi_sicl10_cpa0/cpa_p0_rd_dat_64b/
0 hisi_sicl10_cpa0/cpa_p0_rd_dat_32b/
19,417,730,679 hisi_sicl2_cpa0/cpa_cycles/ # 0.31 cpa_p0_avg_bw
75,635,749 hisi_sicl2_cpa0/cpa_p0_wr_dat/
18,520,640 hisi_sicl2_cpa0/cpa_p0_rd_dat_64b/
0 hisi_sicl2_cpa0/cpa_p0_rd_dat_32b/
19,417,674,227 hisi_sicl8_cpa0/cpa_cycles/ # 0.00 cpa_p0_avg_bw
0 hisi_sicl8_cpa0/cpa_p0_wr_dat/
0 hisi_sicl8_cpa0/cpa_p0_rd_dat_64b/
0 hisi_sicl8_cpa0/cpa_p0_rd_dat_32b/
19.417734480 seconds time elapsed
With --pmu-filter, users can select only hisi_sicl2_cpa0 PMU.
# perf stat --pmu-filter hisi_sicl2_cpa0 -M cpa_p0_avg_bw
Performance counter stats for 'system wide':
6,234,093,559 cpa_cycles # 0.60 cpa_p0_avg_bw
50,548,465 cpa_p0_wr_dat
7,552,182 cpa_p0_rd_dat_64b
0 cpa_p0_rd_dat_32b
6.234139320 seconds time elapsed
Data type profiling:
- Quality improvements by tracking register state more precisely
- Ensure array members to get the type
- Handle more cases for global variables
Vendor event/metric updates:
- Update various Intel events and metrics
- Add NVIDIA Tegra 410 Olympus events
Internal changes:
- Verify perf.data header for maliciously crafted files
- Update perf test to cover more usages and make them robust
- Move a couple of copied kernel headers not to annoy objtool build
- Fix a bug in map sorting in name order
- Remove some unused codes
Misc:
- Fix module symbol resolution with non-zero text address
- Add -t/--threads option to `perf bench mem mmap`
- Track duration of exit*() syscall by `perf trace -s`
- Add core.addr2line-timeout and core.addr2line-disable-warn config
items"
* tag 'perf-tools-for-v7.1-2026-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (131 commits)
perf loongarch: Fix build failure with CONFIG_LIBDW_DWARF_UNWIND
perf annotate: Use jump__delete when freeing LoongArch jumps
perf test: Fixes for check branch stack sampling
perf test: Fix inet_pton probe failure and unroll call graph
perf build: fix "argument list too long" in second location
perf header: Add sanity checks to HEADER_BPF_BTF processing
perf header: Sanity check HEADER_BPF_PROG_INFO
perf header: Sanity check HEADER_PMU_CAPS
perf header: Sanity check HEADER_HYBRID_TOPOLOGY
perf header: Sanity check HEADER_CACHE
perf header: Sanity check HEADER_GROUP_DESC
perf header: Sanity check HEADER_PMU_MAPPINGS
perf header: Sanity check HEADER_MEM_TOPOLOGY
perf header: Sanity check HEADER_NUMA_TOPOLOGY
perf header: Sanity check HEADER_CPU_TOPOLOGY
perf header: Sanity check HEADER_NRCPUS and HEADER_CPU_DOMAIN_INFO
perf header: Bump up the max number of command line args allowed
perf header: Validate nr_domains when reading HEADER_CPU_DOMAIN_INFO
perf sample: Fix documentation typo
perf arm_spe: Improve SIMD flags setting
...
Per Linus' comments requesting the replacement of "INDIR_BR_LP" in the
indirect branch tracking prctl()s with something more readable, and
suggesting the use of the speculation control prctl()s as an exemplar,
reimplement the prctl()s and related constants that control per-task
forward-edge control flow integrity.
This primarily involves two changes. First, the prctls are
restructured to resemble the style of the speculative execution
workaround control prctls PR_{GET,SET}_SPECULATION_CTRL, to make them
easier to extend in the future. Second, the "indir_br_lp" abbrevation
is expanded to "branch_landing_pads" to be less telegraphic. The
kselftest and documentation is adjusted accordingly.
Link: https://lore.kernel.org/linux-riscv/CAHk-=whhSLGZAx3N5jJpb4GLFDqH_QvS07D+6BnkPWmCEzTAgw@mail.gmail.com/
Cc: Deepak Gupta <debug@rivosinc.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Paul Walmsley <pjw@kernel.org>
As it is not really used when compiling anything, just being parsed to
collect number->string tables for 'perf trace'.
$ git grep fadvise.h tools/
tools/perf/Makefile.perf:$(fadvise_advice_array): $(beauty_uapi_linux_dir)/fadvise.h $(fadvise_advice_tbl)
tools/perf/check-headers.sh: "include/uapi/linux/fadvise.h"
tools/perf/trace/beauty/fadvise.sh:grep -E $regex ${header_dir}/fadvise.h | \
tools/perf/trace/beauty/fadvise.sh:# tools/include/uapi/linux/fadvise.h for details.
$
Link: https://lore.kernel.org/r/CAP-5=fVBNQVF8k3JUQjH1nkP69ZVp8BqP+uwygcx=xO0zC4xrg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
As it is used only to parse ioctl numbers, not to build perf and so far
no other tools/ living tool uses it, so to clean up tools/include/ to be
used just for building tools, to have access to things available in the
kernel and not yet in the system headers, move it to the directory where
just the tools/perf/trace/beauty/ scripts can use to generate tables
used by perf.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up the change in:
a1fab3e69d ("x86/irq: Fix comment on IRQ vector layout")
That just adds one comment, so no changes in perf tooling, just silences
this build warning:
diff -u tools/perf/trace/beauty/arch/x86/include/asm/irq_vectors.h arch/x86/include/asm/irq_vectors.h
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up changes from:
0e6b7eae1f ("fs: add FS_XFLAG_VERITY for fs-verity files")
These are used to beautify fs syscall arguments, albeit the changes in
this update are not affecting those beautifiers.
This addresses these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fs.h include/uapi/linux/fs.h
Please see tools/include/uapi/README.
Cc: Andrey Albershteyn <aalbersh@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
9b8a0ba682 ("mount: add OPEN_TREE_NAMESPACE")
0e5032237e ("statmount: accept fd as a parameter")
That doesn't change anything in tools this time as nothing that is
harvested by the beauty scripts got changed:
$ ls -1 tools/perf/trace/beauty/*mount*sh
tools/perf/trace/beauty/fsmount.sh
tools/perf/trace/beauty/mount_flags.sh
tools/perf/trace/beauty/move_mount_flags.sh
$
This addresses this perf build warning.
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
Please see tools/include/uapi/README for further details.
Cc: Christian Brauner <brauner@kernel.org>
Cc: Bhavik Sachdev <b.sachdev1904@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull performance event updates from Ingo Molnar:
"x86 PMU driver updates:
- Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs
(Dapeng Mi)
Compared to previous iterations of the Intel PMU code, there's been
a lot of changes, which center around three main areas:
- Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the
Off-Core Response (OCR) facility
- New PEBS data source encoding layout
- Support the new "RDPMC user disable" feature
- Likewise, a large series adds uncore PMU support for Intel Diamond
Rapids (DMR) CPUs (Zide Chen)
This centers around these four main areas:
- DMR may have two Integrated I/O and Memory Hub (IMH) dies,
separate from the compute tile (CBB) dies. Each CBB and each IMH
die has its own discovery domain.
- Unlike prior CPUs that retrieve the global discovery table
portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
discovery and MSR for CBB PMON discovery.
- DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR,
PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
- IIO free-running counters in DMR are MMIO-based, unlike SPR.
- Also add support for Add missing PMON units for Intel Panther Lake,
and support Nova Lake (NVL), which largely maps to Panther Lake.
(Zide Chen)
- KVM integration: Add support for mediated vPMUs (by Kan Liang and
Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
Sandipan Das and Mingwei Zhang)
- Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs,
which are a low-power variant of Panther Lake (Zide Chen)
- Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
(aka MaxLinear Lightning Mountain), which maps to the existing
Airmont code (Martin Schiller)
Performance enhancements:
- Speed up kexec shutdown by avoiding unnecessary cross CPU calls
(Jan H. Schönherr)
- Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim)
User-space stack unwinding support:
- Various cleanups and refactorings in preparation to generalize the
unwinding code for other architectures (Jens Remus)
Uprobes updates:
- Transition from kmap_atomic to kmap_local_page (Keke Ming)
- Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
- Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
Misc fixes and cleanups:
- s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
- x86/intel/uncore: Convert comma to semicolon (Chen Ni)
- x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
- x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"
* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
s390: remove kvm_types.h from Kbuild
uprobes: Fix incorrect lockdep condition in filter_chain()
x86/ibs: Fix typo in dc_l2tlb_miss comment
x86/uprobes: Fix XOL allocation failure for 32-bit tasks
perf/x86/intel/uncore: Convert comma to semicolon
perf/x86/intel: Add support for rdpmc user disable feature
perf/x86: Use macros to replace magic numbers in attr_rdpmc
perf/x86/intel: Add core PMU support for Novalake
perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL
perf/x86/intel: Add core PMU support for DMR
perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR
perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL
perf/core: Fix slow perf_event_task_exit() with LBR callstacks
perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls
uprobes: use kmap_local_page() for temporary page mappings
arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
perf/x86/intel/uncore: Add Nova Lake support
...
To pick up changes from:
d73c167708 ("socket: Split out a getsockname helper for io_uring")
4677e78800 ("socket: Unify getsockname and getpeername implementation")
bf33247a90 ("net: Add struct sockaddr_unsized for sockaddr of unknown length")
This should be used to beautify socket syscall arguments and it addresses
these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h
Please see tools/include/uapi/README.
Cc: netdev@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
9a97857db0 ("ALSA: uapi: Fix typo in asound.h comment")
This should address these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/sound/asound.h include/uapi/sound/asound.h
Please see tools/include/uapi/README.
Cc: linux-sound@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
78f0e33cd6 ("fs/namespace: correctly handle errors returned by grab_requested_mnt_ns")
This should be used to beautify mount syscall arguments and it addresses
these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/mount.h include/uapi/linux/mount.h
Please see tools/include/uapi/README.
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
b30ffcdc0c ("block: introduce BLKREPORTZONESV2 ioctl")
0d8627cc93 ("blktrace: add definitions for blk_user_trace_setup2")
This should be used to beautify ioctl syscall arguments and it addresses
these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fs.h include/uapi/linux/fs.h
Please see tools/include/uapi/README.
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To pick up changes from:
fe93446b5e ("vfs: use UAPI types for new struct delegation definition")
4be9e04ebf ("vfs: add needed headers for new struct delegation definition")
1602bad16d ("vfs: expose delegation support to userland")
This should be used to beautify fcntl syscall arguments and it addresses
these tools/perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
Please see tools/include/uapi/README.
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Wire up system vector 0xf5 for handling PMIs (i.e. interrupts delivered
through the LVTPC) while running KVM guests with a mediated PMU. Perf
currently delivers all PMIs as NMIs, e.g. so that events that trigger while
IRQs are disabled aren't delayed and generate useless records, but due to
the multiplexing of NMIs throughout the system, correctly identifying NMIs
for a mediated PMU is practically infeasible.
To (greatly) simplify identifying guest mediated PMU PMIs, perf will
switch the CPU's LVTPC between PERF_GUEST_MEDIATED_PMI_VECTOR and NMI when
guest PMU context is loaded/put. I.e. PMIs that are generated by the CPU
while the guest is active will be identified purely based on the IRQ
vector.
Route the vector through perf, e.g. as opposed to letting KVM attach a
handler directly a la posted interrupt notification vectors, as perf owns
the LVTPC and thus is the rightful owner of PERF_GUEST_MEDIATED_PMI_VECTOR.
Functionally, having KVM directly own the vector would be fine (both KVM
and perf will be completely aware of when a mediated PMU is active), but
would lead to an undesirable split in ownership: perf would be responsible
for installing the vector, but not handling the resulting IRQs.
Add a new perf_guest_info_callbacks hook (and static call) to allow KVM to
register its handler with perf when running guests with mediated PMUs.
Note, because KVM always runs guests with host IRQs enabled, there is no
danger of a PMI being delayed from the guest's perspective due to using a
regular IRQ instead of an NMI.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Xudong Hao <xudong.hao@intel.com>
Link: https://patch.msgid.link/20251206001720.468579-9-seanjc@google.com
Cross-merge networking fixes after downstream PR (net-6.18-rc6).
No conflicts, adjacent changes in:
drivers/net/phy/micrel.c
96a9178a29 ("net: phy: micrel: lan8814 fix reset of the QSGMII interface")
61b7ade9ba ("net: phy: micrel: Add support for non PTP SKUs for lan8814")
and a trivial one in tools/testing/selftests/drivers/net/Makefile.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Revert struct sockaddr from flexible array to fixed 14-byte "sa_data",
to solve over 36,000 -Wflex-array-member-not-at-end warnings, since
struct sockaddr is embedded within many network structs.
With socket/proto sockaddr-based internal APIs switched to use struct
sockaddr_unsized, there should be no more uses of struct sockaddr that
depend on reading beyond the end of struct sockaddr::sa_data that might
trigger bounds checking.
Comparing an x86_64 "allyesconfig" vmlinux build before and after this
patch showed no new "ud1" instructions from CONFIG_UBSAN_BOUNDS nor any
new "field-spanning" memcpy CONFIG_FORTIFY_SOURCE instrumentations.
Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20251104002617.2752303-8-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
To pick up the changes in this cset:
e83f0b5d10 ("nsfs: support exhaustive file handles")
That doesn't introduce anything of interest for tools/, just addresses
these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
Please see tools/include/uapi/README for further details.
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in these csets:
8cdc4d2701 ("mm/huge_memory: respect MADV_COLLAPSE with PR_THP_DISABLE_EXCEPT_ADVISED")
9dc21bbd62 ("prctl: extend PR_SET_THP_DISABLE to optionally exclude VM_HUGEPAGE")
That don't introduce anything of interest for the tools/, just
addressing these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
Please see tools/include/uapi/README for further details.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Namhyung Kim
Linus Torvalds
Paul Walmsley
Arnaldo Carvalho de MeloandNamhyung Kim
Sean ChristophersonandPeter Zijlstra
Jakub Kicinski
Kees CookandJakub Kicinski