Changes in Build

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/perf/arch/loongarch/util/Build

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/tools/perf/arch/loongarch/util/Build

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/tools/perf/arch/loongarch/util/Build

3e9e952bb3139ad1e08f3e1960239c2988ab90c9 - Merge branch 'for-7.1-printf-kunit-build' into for-linus

Mon, 20 Apr 2026 13:41:28 +0200

Merge branch 'for-7.1-printf-kunit-build' into for-linus List of files: /linux/tools/perf/arch/loongarch/util/Build

df8f6181ab57d65a99e61fcfc5be22a42df58642 - Merge tag 'perf-tools-for-v7.1-2026-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Sat, 18 Apr 2026 18:24:56 +0200

Merge tag 'perf-tools-for-v7.1-2026-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-toolsPull 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/". $ 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/ 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 ... List of files: /linux/tools/perf/arch/loongarch/util/Build

d4eb7b2da66c848709e31585b9c371fa234abc39 - Merge branch 'for-7.1/core-v2' into for-linus

Thu, 16 Apr 2026 21:01:18 +0200

Merge branch 'for-7.1/core-v2' into for-linus- fixed handling of 0-sized reports (Dmitry Torokhov)- convert core code to __free() (Dmitry Torokhov)- support for multiple batteries per HID device (Lucas Zampieri) List of files: /linux/tools/perf/arch/loongarch/util/Build

841dbf4871c57ce2da18c4ea7ffac5487d0eda16 - perf loongarch: Fix build failure with CONFIG_LIBDW_DWARF_UNWIND

Tue, 14 Apr 2026 02:51:52 +0200

perf loongarch: Fix build failure with CONFIG_LIBDW_DWARF_UNWINDBuilding perf for LoongArch fails when CONFIG_LIBDW_DWARF_UNWIND isenabled because unwind-libdw.o is still referenced inarch/loongarch/util/Build.Fixes: e62fae9d9e8 ("perf unwind-libdw: Fix a cross-arch unwinding bug")Signed-off-by: WANG Rui Acked-by: Huacai Chen Signed-off-by: Namhyung Kim List of files: /linux/tools/perf/arch/loongarch/util/Build

42d3b66d4cdbacfc9d120d2301b8de89cc29a914 - Merge drm/drm-next into drm-xe-next

Thu, 12 Mar 2026 15:17:56 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THPsupport.Signed-off-by: Matthew Brost List of files: /linux/tools/perf/arch/loongarch/util/Build

0314e382cf02983eb3c33ac537ad9701e7858bc9 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Thu, 26 Feb 2026 19:20:47 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netCross-merge networking fixes after downstream PR (net-7.0-rc2).Conflicts:tools/testing/selftests/drivers/net/hw/rss_ctx.py 19c3a2a81d2b ("selftests: drv-net: rss: Generate unique ports for RSS context tests") ce5a0f4612db ("selftests: drv-net: rss_ctx: test RSS contexts persist after ifdown/up")include/net/inet_connection_sock.h 858d2a4f67ff6 ("tcp: fix potential race in tcp_v6_syn_recv_sock()") fcd3d039fab69 ("tcp: make tcp_v{4,6}_send_check() static")https://lore.kernel.org/aZ8PSFLzBrEU3I89@sirena.org.ukdrivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.cdrivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c 69050f8d6d075 ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types") bf4afc53b77ae ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument") 8a96b9144f18a ("net/mlx5e: Alloc xsk channel param out of mlx5e_open_xsk()")Adjacent changes:net/netfilter/ipvs/ip_vs_ctl.c c59bd9e62e06 ("ipvs: use more counters to avoid service lookups") bf4afc53b77a ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument")Signed-off-by: Jakub Kicinski List of files: /linux/tools/perf/arch/loongarch/util/Build

f09812b85fa6f41058bcc46e70ac406bf9b0493a - Merge drm/drm-next into drm-intel-next

Wed, 25 Feb 2026 12:23:04 +0100

Merge drm/drm-next into drm-intel-nextSync with v7.0-rc1 which contains a few treewide changes affecting i915.Signed-off-by: Jani Nikula List of files: /linux/tools/perf/arch/loongarch/util/Build

3ecf0b4a0e0ed4783aa32c5f3e42d23c7021e1c8 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 7.0-rc1

Mon, 23 Feb 2026 17:06:33 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 7.0-rc1Cross-merge trees after 7.0-rc1.No conflicts.Signed-off-by: Alexei Starovoitov List of files: /linux/tools/perf/arch/loongarch/util/Build

8b85987d3cf50178f67618122d9f3bb202f62f42 - Merge drm/drm-next into drm-misc-next

Mon, 23 Feb 2026 11:48:20 +0100

Merge drm/drm-next into drm-misc-nextLet's merge 7.0-rc1 to start the new drm-misc-next windowSigned-off-by: Maxime Ripard List of files: /linux/tools/perf/arch/loongarch/util/Build

c17ee635fd3a482b2ad2bf5e269755c2eae5f25e - Merge drm/drm-fixes into drm-misc-fixes

Mon, 23 Feb 2026 10:09:45 +0100

Merge drm/drm-fixes into drm-misc-fixes7.0-rc1 was just released, let's merge it to kick the new release cycle.Signed-off-by: Maxime Ripard List of files: /linux/tools/perf/arch/loongarch/util/Build

c7decec2f2d2ab0366567f9e30c0e1418cece43f - Merge tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Sat, 21 Feb 2026 19:51:08 +0100

Merge tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-toolsPull perf tools updates from Arnaldo Carvalho de Melo: - Introduce 'perf sched stats' tool with record/report/diff workflows using schedstat counters - Add a faster libdw based addr2line implementation and allow selecting it or its alternatives via 'perf config addr2line.style=' - Data-type profiling fixes and improvements including the ability to select fields using 'perf report''s -F/-fields, e.g.: 'perf report --fields overhead,type' - Add 'perf test' regression tests for Data-type profiling with C and Rust workloads - Fix srcline printing with inlines in callchains, make sure this has coverage in 'perf test' - Fix printing of leaf IP in LBR callchains - Fix display of metrics without sufficient permission in 'perf stat' - Print all machines in 'perf kvm report -vvv', not just the host - Switch from SHA-1 to BLAKE2s for build ID generation, remove SHA-1 code - Fix 'perf report's histogram entry collapsing with '-F' option - Use system's cacheline size instead of a hardcoded value in 'perf report' - Allow filtering conversion by time range in 'perf data' - Cover conversion to CTF using 'perf data' in 'perf test' - Address newer glibc const-correctness (-Werror=discarded-qualifiers) issues - Fixes and improvements for ARM's CoreSight support, simplify ARM SPE event config in 'perf mem', update docs for 'perf c2c' including the ARM events it can be used with - Build support for generating metrics from arch specific python script, add extra AMD, Intel, ARM64 metrics using it - Add AMD Zen 6 events and metrics - Add JSON file with OpenHW Risc-V CVA6 hardware counters - Add 'perf kvm' stats live testing - Add more 'perf stat' tests to 'perf test' - Fix segfault in `perf lock contention -b/--use-bpf` - Fix various 'perf test' cases for s390 - Build system cleanups, bump minimum shellcheck version to 0.7.2 - Support building the capstone based annotation routines as a plugin - Allow passing extra Clang flags via EXTRA_BPF_FLAGS* tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (255 commits) perf test script: Add python script testing support perf test script: Add perl script testing support perf script: Allow the generated script to be a path perf test: perf data --to-ctf testing perf test: Test pipe mode with data conversion --to-json perf json: Pipe mode --to-ctf support perf json: Pipe mode --to-json support perf check: Add libbabeltrace to the listed features perf build: Allow passing extra Clang flags via EXTRA_BPF_FLAGS perf test data_type_profiling.sh: Skip just the Rust tests if code_with_type workload is missing tools build: Fix feature test for rust compiler perf libunwind: Fix calls to thread__e_machine() perf stat: Add no-affinity flag perf evlist: Reduce affinity use and move into iterator, fix no affinity perf evlist: Missing TPEBS close in evlist__close() perf evlist: Special map propagation for tool events that read on 1 CPU perf stat-shadow: In prepare_metric fix guard on reading NULL perf_stat_evsel Revert "perf tool_pmu: More accurately set the cpus for tool events" tools build: Emit dependencies file for test-rust.bin tools build: Make test-rust.bin be removed by the 'clean' target ... List of files: /linux/tools/perf/arch/loongarch/util/Build

16dccbb84203196dab2e578b27c3c8f549ebff66 - perf regs: Remove weak attributive archxxx_reg_mask() functions

Tue, 03 Feb 2026 03:43:55 +0100

perf regs: Remove __weak attributive arch__xxx_reg_mask() functionsCurrently, some architecture-specific perf-regs functions, such asarch__intr_reg_mask() and arch__user_reg_mask(), are defined with the__weak attribute.This approach ensures that only functions matching the architecture ofthe build/run host are compiled and executed, reducing build time andbinary size.However, this __weak attribute restricts these functions to be calledonly on the same architecture, preventing cross-architecturefunctionality.For example, a perf.data file captured on x86 cannot be parsed on an ARMplatform.To address this limitation, this patch removes the __weak attribute fromthese perf-regs functions.The architecture-specific code is moved from the arch/ directory to theutil/perf-regs-arch/ directory.The appropriate architectural functions are then called based on theEM_HOST.No functional changes are intended.Suggested-by: Ian Rogers Reviewed-by: Ian Rogers Signed-off-by: Dapeng Mi Cc: Adrian Hunter Cc: Albert Ou Cc: Alexander Shishkin Cc: Alexandre Ghiti Cc: Guo Ren Cc: Ingo Molnar Cc: James Clark Cc: John Garry Cc: Mike Leach Cc: Namhyung Kim Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Thomas Falcon Cc: Will Deacon Cc: Xudong Hao Cc: Zide Chen [ Fixed up somme fuzz with s390 and riscv Build files wrt removing perf_regs.o ]Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/perf/arch/loongarch/util/Build

ceea279f93760767c0e654341829334a1c881a08 - perf kvm stat: Remove use of the arch directory

Tue, 03 Feb 2026 19:26:36 +0100

perf kvm stat: Remove use of the arch directory`perf kvm stat` supports record and report options.By using the arch directory a report for a different machine type cannotbe supported.Move the kvm-stat code out of the arch directory and intoutil/kvm-stat-arch following the pattern of perf-regs and dwarf-regs.Avoid duplicate symbols by renaming functions to have the architecturename within them.For global variables, wrap them in an architecture specific function.Selecting the architecture to use with `perf kvm stat` is selected byEM_HOST, ie no different than before the change.Later the ELF machine can be determined from the session or a headerfeature (ie EM_HOST at the time of the record).The build and #define HAVE_KVM_STAT_SUPPORT is now redundant so removeacross Makefiles and in the build.Opportunistically constify architectural structs and arrays.Signed-off-by: Ian Rogers Cc: Aditya Bodkhe Cc: Adrian Hunter Cc: Albert Ou Cc: Alexander Shishkin Cc: Alexandre Ghiti Cc: Andi Kleen Cc: Andrew Jones Cc: Anubhav Shelat Cc: Anup Patel Cc: Athira Rajeev Cc: Blake Jones Cc: Chun-Tse Shao Cc: Dapeng Mi Cc: Dmitriy Vyukov Cc: Howard Chu Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Leo Yan Cc: Namhyung Kim Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Quan Zhou Cc: Shimin Guo Cc: Swapnil Sapkal Cc: Thomas Falcon Cc: Will Deacon Cc: Yunseong Kim Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/perf/arch/loongarch/util/Build

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 10:29:14 +0100

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/tools/perf/arch/loongarch/util/Build

60675d4ca1ef0857e44eba5849b74a3a998d0c0f - Merge branch 'linus' into x86/mm, to pick up fixes

Fri, 20 Dec 2024 10:25:44 +0100

Merge branch 'linus' into x86/mm, to pick up fixesSigned-off-by: Ingo Molnar List of files: /linux/tools/perf/arch/loongarch/util/Build

25768de50b1f2dbb6ea44bd5148a87fe2c9c3688 - Merge branch 'next' into for-linus

Tue, 21 Jan 2025 06:37:39 +0100

Merge branch 'next' into for-linusPrepare input updates for 6.14 merge window. List of files: /linux/tools/perf/arch/loongarch/util/Build

670af65d2ab4a6a9bb72f014b080757e291ad3fe - Merge branch 'for-6.14/constify-bin-attribute' into for-linus

Mon, 20 Jan 2025 09:58:12 +0100

Merge branch 'for-6.14/constify-bin-attribute' into for-linus- constification of 'struct bin_attribute' in various HID driver (Thomas Weißschuh) List of files: /linux/tools/perf/arch/loongarch/util/Build