OSCL-LXR

0001 #!/bin/sh
0002 # SPDX-License-Identifier: GPL-2.0
0003 #
0004 # Generate system call table for perf. Derived from
0005 # powerpc script.
0006 #
0007 # Copyright IBM Corp. 2017
0008 # Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
0009 # Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
0010 # Changed by: Kim Phillips <kim.phillips@arm.com>
0011
0012 gcc=$1
0013 hostcc=$2
0014 incpath=$3
0015 input=$4
0016
0017 if ! test -r $input; then
0018         echo "Could not read input file" >&2
0019         exit 1
0020 fi
0021
0022 create_table_from_c()
0023 {
0024         local sc nr last_sc
0025
0026         create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
0027
0028         {
0029
0030         cat <<-_EoHEADER
0031                 #include <stdio.h>
0032                 #include "$input"
0033                 int main(int argc, char *argv[])
0034                 {
0035         _EoHEADER
0036
0037         while read sc nr; do
0038                 printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", __NR_$sc);"
0039                 last_sc=$sc
0040         done
0041
0042         printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);"
0043         printf "}\n"
0044
0045         } | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
0046
0047         $create_table_exe
0048
0049         rm -f $create_table_exe
0050 }
0051
0052 create_table()
0053 {
0054         echo "static const char *syscalltbl_arm64[] = {"
0055         create_table_from_c
0056         echo "};"
0057 }
0058
0059 $gcc -E -dM -x c -I $incpath/include/uapi $input \
0060         |sed -ne 's/^#define __NR_//p' \
0061         |sort -t' ' -k2 -nu            \
0062         |create_table