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perf LoongArch: Simplify mksyscalltbl

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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>
This commit is contained in:
Tiezhu Yang 2023-05-30 18:10:01 +08:00 committed by Arnaldo Carvalho de Melo
parent 250e30badf
commit 269f49f9cb
1 changed files with 11 additions and 27 deletions
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38
tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
View File

@ -18,44 +18,28 @@ if ! test -r $input; then
exit 1
fi
create_table_from_c()
create_sc_table()
{
local sc nr last_sc
create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
{
cat <<-_EoHEADER
#include <stdio.h>
#include "$input"
int main(int argc, char *argv[])
{
_EoHEADER
local sc nr max_nr
while read sc nr; do
printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", $nr);"
last_sc=$nr
printf "%s\n" " [$nr] = \"$sc\","
max_nr=$nr
done
printf "%s\n" " printf(\"#define SYSCALLTBL_LOONGARCH_MAX_ID %d\\n\", $last_sc);"
printf "}\n"
} | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
$create_table_exe
rm -f $create_table_exe
echo "#define SYSCALLTBL_LOONGARCH_MAX_ID $max_nr"
}
create_table()
{
echo "#include \"$input\""
echo "static const char *const syscalltbl_loongarch[] = {"
create_table_from_c
create_sc_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 '$2 ~ "__NR" && $3 !~ "__NR3264_" {
sub("^#define __NR(3264)?_", "");
print | "sort -k2 -n"}' \
|create_table