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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Generate system call table for perf. Derived from
# powerpc script.
#
# Copyright IBM Corp. 2017
# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
# Changed by: Kim Phillips <kim.phillips@arm.com>
gcc=$1
hostcc=$2
incpath=$3
input=$4
if ! test -r $input; then
echo "Could not read input file" >&2
exit 1
fi
create_table_from_c()
{
local sc nr last_sc
create_table_exe=`mktemp /tmp/create-table-XXXXXX`
{
cat <<-_EoHEADER
#include <stdio.h>
#include "$input"
int main(int argc, char *argv[])
{
_EoHEADER
while read sc nr; do
printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", __NR_$sc);"
last_sc=$sc
done
printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);"
printf "}\n"
} | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
$create_table_exe
rm -f $create_table_exe
}
create_table()
{
echo "static const char *syscalltbl_arm64[] = {"
create_table_from_c
echo "};"
}
$gcc -E -dM -x c $input \
|sed -ne 's/^#define __NR_//p' \
|sort -t' ' -k2 -nu \
|create_table
|
