Commit 269f49f9 authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Arnaldo Carvalho de Melo
Browse files

perf LoongArch: Simplify mksyscalltbl 



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 9854e7ad ("perf arm64: Simplify
mksyscalltbl"). For now, the mksyscalltbl file of LoongArch is
almost same with arm64.

Reviewed-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
Reviewed-by: default avatarLeo Yan <leo.yan@linaro.org>
Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: default avatarIan 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 250e30ba

tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl

+11 −27
Original line number Diff line number Diff line
@@ -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 \

	|awk '$2 ~ "__NR" && $3 !~ "__NR3264_" {

		sub("^#define __NR(3264)?_", "");

		print | "sort -k2 -n"}' \

	|create_table