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Message-Id: <20250219185657.280286-1-irogers@google.com>
Date: Wed, 19 Feb 2025 10:56:49 -0800
From: Ian Rogers <irogers@...gle.com>
To: Ian Rogers <irogers@...gle.com>, Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>,
John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>,
James Clark <james.clark@...aro.org>, Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...ux.dev>, guoren <guoren@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>, Charlie Jenkins <charlie@...osinc.com>,
Bibo Mao <maobibo@...ngson.cn>, Huacai Chen <chenhuacai@...nel.org>,
Catalin Marinas <catalin.marinas@....com>, Jiri Slaby <jirislaby@...nel.org>,
"Björn Töpel" <bjorn@...osinc.com>, Howard Chu <howardchu95@...il.com>, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
"linux-csky@...r.kernel.org" <linux-csky@...r.kernel.org>, linux-riscv@...ts.infradead.org,
linux-mips@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH v3 0/8] perf: Support multiple system call tables in the build
This work builds on the clean up of system call tables and removal of
libaudit by Charlie Jenkins <charlie@...osinc.com>.
The system call table in perf trace is used to map system call numbers
to names and vice versa. Prior to these changes, a single table
matching the perf binary's build was present. The table would be
incorrect if tracing say a 32-bit binary from a 64-bit version of
perf, the names and numbers wouldn't match.
Change the build so that a single system call file is built and the
potentially multiple tables are identifiable from the ELF machine type
of the process being examined. To determine the ELF machine type, the
executable's header is read from /proc/pid/exe with fallbacks to using
the perf's binary type when unknown.
Remove some runtime types used by the system call tables and make
equivalents generated at build time.
v3: Add Charlie's reviewed-by tags. Incorporate feedback from Arnd
Bergmann <arnd@...db.de> on additional optional column and MIPS
system call numbering. Rebase past Namhyung's global system call
statistics and add comments that they don't yet support an
e_machine other than EM_HOST.
v2: Change the 1 element cache for the last table as suggested by
Howard Chu, add Howard's reviewed-by tags.
Add a comment and apology to Charlie for not doing better in
guiding:
https://lore.kernel.org/all/20250114-perf_syscall_arch_runtime-v1-1-5b304e408e11@rivosinc.com/
After discussion on v1 and he agreed this patch series would be
the better direction.
Ian Rogers (8):
perf syscalltble: Remove syscall_table.h
perf trace: Reorganize syscalls
perf syscalltbl: Remove struct syscalltbl
perf thread: Add support for reading the e_machine type for a thread
perf trace beauty: Add syscalltbl.sh generating all system call tables
perf syscalltbl: Use lookup table containing multiple architectures
perf build: Remove Makefile.syscalls
perf syscalltbl: Mask off ABI type for MIPS system calls
tools/perf/Makefile.perf | 10 +-
tools/perf/arch/alpha/entry/syscalls/Kbuild | 2 -
.../alpha/entry/syscalls/Makefile.syscalls | 5 -
tools/perf/arch/alpha/include/syscall_table.h | 2 -
tools/perf/arch/arc/entry/syscalls/Kbuild | 2 -
.../arch/arc/entry/syscalls/Makefile.syscalls | 3 -
tools/perf/arch/arc/include/syscall_table.h | 2 -
tools/perf/arch/arm/entry/syscalls/Kbuild | 4 -
.../arch/arm/entry/syscalls/Makefile.syscalls | 2 -
tools/perf/arch/arm/include/syscall_table.h | 2 -
tools/perf/arch/arm64/entry/syscalls/Kbuild | 3 -
.../arm64/entry/syscalls/Makefile.syscalls | 6 -
tools/perf/arch/arm64/include/syscall_table.h | 8 -
tools/perf/arch/csky/entry/syscalls/Kbuild | 2 -
.../csky/entry/syscalls/Makefile.syscalls | 3 -
tools/perf/arch/csky/include/syscall_table.h | 2 -
.../perf/arch/loongarch/entry/syscalls/Kbuild | 2 -
.../entry/syscalls/Makefile.syscalls | 3 -
.../arch/loongarch/include/syscall_table.h | 2 -
tools/perf/arch/mips/entry/syscalls/Kbuild | 2 -
.../mips/entry/syscalls/Makefile.syscalls | 5 -
tools/perf/arch/mips/include/syscall_table.h | 2 -
tools/perf/arch/parisc/entry/syscalls/Kbuild | 3 -
.../parisc/entry/syscalls/Makefile.syscalls | 6 -
.../perf/arch/parisc/include/syscall_table.h | 8 -
tools/perf/arch/powerpc/entry/syscalls/Kbuild | 3 -
.../powerpc/entry/syscalls/Makefile.syscalls | 6 -
.../perf/arch/powerpc/include/syscall_table.h | 8 -
tools/perf/arch/riscv/entry/syscalls/Kbuild | 2 -
.../riscv/entry/syscalls/Makefile.syscalls | 4 -
tools/perf/arch/riscv/include/syscall_table.h | 8 -
tools/perf/arch/s390/entry/syscalls/Kbuild | 2 -
.../s390/entry/syscalls/Makefile.syscalls | 5 -
tools/perf/arch/s390/include/syscall_table.h | 2 -
tools/perf/arch/sh/entry/syscalls/Kbuild | 2 -
.../arch/sh/entry/syscalls/Makefile.syscalls | 4 -
tools/perf/arch/sh/include/syscall_table.h | 2 -
tools/perf/arch/sparc/entry/syscalls/Kbuild | 3 -
.../sparc/entry/syscalls/Makefile.syscalls | 5 -
tools/perf/arch/sparc/include/syscall_table.h | 8 -
tools/perf/arch/x86/entry/syscalls/Kbuild | 3 -
.../arch/x86/entry/syscalls/Makefile.syscalls | 6 -
tools/perf/arch/x86/include/syscall_table.h | 8 -
tools/perf/arch/xtensa/entry/syscalls/Kbuild | 2 -
.../xtensa/entry/syscalls/Makefile.syscalls | 4 -
.../perf/arch/xtensa/include/syscall_table.h | 2 -
tools/perf/builtin-trace.c | 290 +++++++++++-------
tools/perf/scripts/Makefile.syscalls | 61 ----
tools/perf/scripts/syscalltbl.sh | 86 ------
tools/perf/trace/beauty/syscalltbl.sh | 274 +++++++++++++++++
tools/perf/util/syscalltbl.c | 148 ++++-----
tools/perf/util/syscalltbl.h | 22 +-
tools/perf/util/thread.c | 50 +++
tools/perf/util/thread.h | 14 +-
54 files changed, 616 insertions(+), 509 deletions(-)
delete mode 100644 tools/perf/arch/alpha/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/alpha/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/alpha/include/syscall_table.h
delete mode 100644 tools/perf/arch/arc/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/arc/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/arc/include/syscall_table.h
delete mode 100644 tools/perf/arch/arm/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/arm/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/arm/include/syscall_table.h
delete mode 100644 tools/perf/arch/arm64/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/arm64/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/arm64/include/syscall_table.h
delete mode 100644 tools/perf/arch/csky/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/csky/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/csky/include/syscall_table.h
delete mode 100644 tools/perf/arch/loongarch/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/loongarch/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/loongarch/include/syscall_table.h
delete mode 100644 tools/perf/arch/mips/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/mips/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/mips/include/syscall_table.h
delete mode 100644 tools/perf/arch/parisc/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/parisc/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/parisc/include/syscall_table.h
delete mode 100644 tools/perf/arch/powerpc/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/powerpc/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/powerpc/include/syscall_table.h
delete mode 100644 tools/perf/arch/riscv/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/riscv/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/riscv/include/syscall_table.h
delete mode 100644 tools/perf/arch/s390/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/s390/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/s390/include/syscall_table.h
delete mode 100644 tools/perf/arch/sh/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/sh/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/sh/include/syscall_table.h
delete mode 100644 tools/perf/arch/sparc/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/sparc/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/sparc/include/syscall_table.h
delete mode 100644 tools/perf/arch/x86/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/x86/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/x86/include/syscall_table.h
delete mode 100644 tools/perf/arch/xtensa/entry/syscalls/Kbuild
delete mode 100644 tools/perf/arch/xtensa/entry/syscalls/Makefile.syscalls
delete mode 100644 tools/perf/arch/xtensa/include/syscall_table.h
delete mode 100644 tools/perf/scripts/Makefile.syscalls
delete mode 100755 tools/perf/scripts/syscalltbl.sh
create mode 100755 tools/perf/trace/beauty/syscalltbl.sh
--
2.48.1.601.g30ceb7b040-goog
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