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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2023-05-30 18:09:59 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-06-05 11:37:05 -0300 |
| commit | d6e1cc6b7220073d6d5d2edd79edf2d36da046bf (patch) | |
| tree | c87706cd230e3b17d88a49b66f2f3aebaa34aee4 | |
| parent | 0d0db47634611bf25bb933fec801faa91702a3ab (diff) | |
| download | linux-stable-d6e1cc6b7220073d6d5d2edd79edf2d36da046bf.tar.gz linux-stable-d6e1cc6b7220073d6d5d2edd79edf2d36da046bf.tar.bz2 linux-stable-d6e1cc6b7220073d6d5d2edd79edf2d36da046bf.zip | |
perf arm64: Handle __NR3264_ prefixed syscall number
After commit 9854e7ad35fe ("perf arm64: Simplify mksyscalltbl"),
in the generated syscall table file syscalls.c, there exist some
__NR3264_ prefixed syscall numbers such as [__NR3264_ftruncate],
it looks like not so good, just do some small filter operations
to handle __NR3264_ prefixed syscall number as a digital number.
Without this patch:
[__NR3264_ftruncate] = "ftruncate",
With this patch:
[46] = "ftruncate",
Suggested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-4-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rwxr-xr-x | tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl index 84976dc5bdcf..0bcd64a74642 100755 --- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl +++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl @@ -40,6 +40,7 @@ create_table() } $gcc -E -dM -x c -I $incpath/include/uapi $input \ - |sed -ne 's/^#define __NR_//p' \ - |sort -t' ' -k2 -n \ + |awk '$2 ~ "__NR" && $3 !~ "__NR3264_" { + sub("^#define __NR(3264)?_", ""); + print | "sort -k2 -n"}' \ |create_table |