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 9854e7ad35fe ("perf arm64: Simplify
mksyscalltbl"). For now, the mksyscalltbl file of LoongArch is
almost same with arm64.
Signed-off-by: Tiezhu Yang <[email protected]>
Reviewed-by: Leo Yan <[email protected]>
---
.../arch/loongarch/entry/syscalls/mksyscalltbl | 36 ++++++----------------
1 file changed, 10 insertions(+), 26 deletions(-)
diff --git a/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
index c52156f..8df7b0b 100755
--- a/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
@@ -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
-
while read sc nr; do
- printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", $nr);"
- last_sc=$nr
+ printf "%s\n" " [$nr] = \"$sc\","
+ last_sc=$sc
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 $create_table_exe
+ printf "%s\n" "#define SYSCALLTBL_LOONGARCH_MAX_ID __NR_$last_sc"
}
create_table()
{
+ echo "#include \"$input\""
echo "static const char *syscalltbl_loongarch[] = {"
- create_table_from_c
+ create_sc_table
echo "};"
}
-$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
--
2.1.0