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Subject[PATCH 1/2] perf arm64: Handle __NR3264_ prefixed syscall number
Date
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",

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
index 22cdf91..59ab7939 100755
--- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
@@ -39,7 +39,8 @@ create_table()
echo "};"
}

-$gcc -E -dM -x c -I $incpath/include/uapi $input \
- |sed -ne 's/^#define __NR_//p' \
- |sort -t' ' -k2 -n \
+$gcc -E -dM -x c -I $incpath/include/uapi $input \
+ |awk '{if ($2~"__NR" && $3 !~"__NR3264_") {print}}' \
+ |sed -ne 's/^#define __NR_//p;s/^#define __NR3264_//p' \
+ |sort -t' ' -k2 -n \
|create_table
--
2.1.0
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