linux_dsm_epyc7002/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
Ravi Bangoria 8e2ff72aa3 perf powerpc: Generate system call table from asm/unistd.h
This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com
[ Made it generate syscall_32.c as well to fix the build on 32-bit ppc ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-02-16 14:55:48 -03:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Generate system call table for perf. Derived from
# s390 script.
#
# Copyright IBM Corp. 2017
# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
wordsize=$1
gcc=$2
input=$3
if ! test -r $input; then
echo "Could not read input file" >&2
exit 1
fi
create_table()
{
local wordsize=$1
local max_nr
echo "static const char *syscalltbl_powerpc_${wordsize}[] = {"
while read sc nr; do
printf '\t[%d] = "%s",\n' $nr $sc
max_nr=$nr
done
echo '};'
echo "#define SYSCALLTBL_POWERPC_${wordsize}_MAX_ID $max_nr"
}
$gcc -m${wordsize} -E -dM -x c $input \
|sed -ne 's/^#define __NR_//p' \
|sort -t' ' -k2 -nu \
|create_table ${wordsize}