kernel/linux.git/tools/perf/arch/arc, branch v6.18.21

perf build: Remove Makefile.syscalls

2025-03-21T05:58:20+00:00

Now a single beauty file is generated and used by all architectures, remove the per-architecture Makefiles, Kbuild files and previous generator script. Note: there was conversation with Charlie Jenkins and they'd written an alternate approach to support multiple architectures: https://lore.kernel.org/all/20250114-perf_syscall_arch_runtime-v1-1-5b304e408e11@rivosinc.com/ It would have been better to have helped Charlie fix their series (my apologies) but they agreed that the approach taken here was likely best for longer term maintainability: https://lore.kernel.org/lkml/Z6Jk_UN9i69QGqUj@ghost/ Signed-off-by: Ian Rogers Reviewed-by: Howard Chu Reviewed-by: Charlie Jenkins Reviewed-by: Namhyung Kim Acked-by: Arnaldo Carvalho de Melo Link: https://lore.kernel.org/r/20250319050741.269828-11-irogers@google.com Signed-off-by: Namhyung Kim

perf syscalltbl: Remove syscall_table.h

2025-03-21T05:57:35+00:00

The definition of "static const char *const syscalltbl[] = {" is done in a generated syscalls_32.h or syscalls_64.h that is architecture dependent. In order to include the appropriate file a syscall_table.h is found via the perf include path and it includes the syscalls_32.h or syscalls_64.h as appropriate. To support having multiple syscall tables, one for 32-bit and one for 64-bit, or for different architectures, an include path cannot be used. Remove syscall_table.h because of this and inline what it does into syscalltbl.c. For architectures without a syscall_table.h this will cause a failure to include either syscalls_32.h or syscalls_64.h rather than a failure to include syscall_table.h. For architectures that only included one or other, the behavior matches BITS_PER_LONG as previously done on architectures supporting both syscalls_32.h and syscalls_64.h. Signed-off-by: Ian Rogers Reviewed-by: Howard Chu Reviewed-by: Charlie Jenkins Reviewed-by: Namhyung Kim Acked-by: Arnaldo Carvalho de Melo Link: https://lore.kernel.org/r/20250319050741.269828-4-irogers@google.com Signed-off-by: Namhyung Kim

perf tools arc: Support generic syscall headers

2025-01-09T15:50:56+00:00

Arc uses the generic syscall table, use that in perf instead of requiring libaudit. Signed-off-by: Charlie Jenkins Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Arnd Bergmann Cc: Christian Brauner Cc: Guo Ren Cc: Günther Noack Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Jonathan Corbet Cc: Leo Yan Cc: Mark Rutland Cc: Mickaël Salaün Cc: Mike Leach Cc: Namhyung Kim Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Will Deacon Link: https://lore.kernel.org/r/20250108-perf_syscalltbl-v6-2-7543b5293098@rivosinc.com Signed-off-by: Arnaldo Carvalho de Melo

perf disasm: Add e_machine/e_flags to struct arch

2024-11-09T16:39:13+00:00

Currently functions like get_dwarf_regnum only work with the host architecture. Carry the elf machine and flags in struct arch so that in disassembly these can be used to allow cross platform disassembly. Reviewed-by: Masami Hiramatsu (Google) Signed-off-by: Ian Rogers Cc: Anup Patel Cc: Yang Jihong Cc: Palmer Dabbelt Cc: David S. Miller Cc: Albert Ou Cc: Shenlin Liang Cc: Nick Terrell Cc: Guilherme Amadio Cc: Steinar H. Gunderson Cc: Changbin Du Cc: Alexander Lobakin Cc: Przemek Kitszel Cc: Huacai Chen Cc: Guo Ren Cc: Masahiro Yamada Cc: Will Deacon Cc: James Clark Cc: Mike Leach Cc: Chen Pei Cc: Leo Yan Cc: Oliver Upton Cc: Aditya Gupta Cc: Kajol Jain Cc: Athira Rajeev Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao Cc: John Garry Cc: Atish Patra Cc: Dima Kogan Cc: Paul Walmsley Cc: Dr. David Alan Gilbert Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241108234606.429459-5-irogers@google.com Signed-off-by: Namhyung Kim

perf annotate: Introduce basic support for ARC

2018-12-17T17:59:42+00:00

Introduce basic 'perf annotate' support for ARC to be able to use anotation via stdio interface. Signed-off-by: Eugeniy Paltsev Cc: Alexander Shishkin Cc: Alexey Brodkin Cc: Jiri Olsa Cc: linux-snps-arc@lists.infradead.org Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Vineet Gupta Link: http://lkml.kernel.org/r/20181204175118.25232-1-Eugeniy.Paltsev@synopsys.com Signed-off-by: Arnaldo Carvalho de Melo