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269f49f9cb
In order to print the numerical entries of the syscall table,
there is no need to call the host compiler to build and then
run a program, this can be done directly by the shell script.
This is similar with commit 9854e7ad35 ("perf arm64: Simplify
mksyscalltbl"). For now, the mksyscalltbl file of LoongArch is
almost same with arm64.
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/1685441401-8709-6-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
45 lines
882 B
Bash
Executable file
45 lines
882 B
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Generate system call table for perf. Derived from
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# powerpc script.
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#
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# Author(s): Ming Wang <wangming01@loongson.cn>
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# Author(s): Huacai Chen <chenhuacai@loongson.cn>
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# Copyright (C) 2020-2023 Loongson Technology Corporation Limited
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gcc=$1
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hostcc=$2
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incpath=$3
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input=$4
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if ! test -r $input; then
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echo "Could not read input file" >&2
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exit 1
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fi
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create_sc_table()
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{
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local sc nr max_nr
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while read sc nr; do
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printf "%s\n" " [$nr] = \"$sc\","
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max_nr=$nr
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done
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echo "#define SYSCALLTBL_LOONGARCH_MAX_ID $max_nr"
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}
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create_table()
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{
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echo "#include \"$input\""
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echo "static const char *const syscalltbl_loongarch[] = {"
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create_sc_table
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echo "};"
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}
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$gcc -E -dM -x c -I $incpath/include/uapi $input \
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|awk '$2 ~ "__NR" && $3 !~ "__NR3264_" {
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sub("^#define __NR(3264)?_", "");
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print | "sort -k2 -n"}' \
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|create_table
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