tools/perf/arch/arm64/entry/syscalls/mksyscalltbl

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Generate system call table for perf. Derived from
   5 # powerpc script.
   6 #
   7 # Copyright IBM Corp. 2017
   8 # Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
   9 # Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
  10 # Changed by: Kim Phillips <kim.phillips@arm.com>
  11
  12 gcc=$1
  13 hostcc=$2
  14 incpath=$3
  15 input=$4
  16
  17 if ! test -r $input; then
  18         echo "Could not read input file" >&2
  19         exit 1
  20 fi
  21
  22 create_table_from_c()
  23 {
  24         local sc nr last_sc
  25
  26         create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
  27
  28         {
  29
  30         cat <<-_EoHEADER
  31                 #include <stdio.h>
  32                 #include "$input"
  33                 int main(int argc, char *argv[])
  34                 {
  35         _EoHEADER
  36
  37         while read sc nr; do
  38                 printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", __NR_$sc);"
  39                 last_sc=$sc
  40         done
  41
  42         printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);"
  43         printf "}\n"
  44
  45         } | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
  46
  47         $create_table_exe
  48
  49         rm -f $create_table_exe
  50 }
  51
  52 create_table()
  53 {
  54         echo "static const char *syscalltbl_arm64[] = {"
  55         create_table_from_c
  56         echo "};"
  57 }
  58
  59 $gcc -E -dM -x c  $input               \
  60         |sed -ne 's/^#define __NR_//p' \
  61         |sort -t' ' -k2 -nu            \
  62         |create_table