389373d330
When /tmp is mounted with noexec, mksyscalltbl fails.
[snip]
|perf-1.0/tools/perf/arch/arm64/entry/syscalls//mksyscalltbl:
/tmp/create-table-6VGPSt: Permission denied
[snip]
Add variable TMPDIR as prefix dir of the temporary file, if it is set,
replace default /tmp.
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Sébastien Boisvert <sboisvert@gydle.com>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Fixes: 2b58824356 ("perf arm64: Generate system call table from asm/unistd.h")
LPU-Reference: 1539851173-14959-1-git-send-email-hongxu.jia@windriver.com
Link: https://lkml.kernel.org/n/tip-1qrgq840ci0c5cy4oww957ge@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
63 lines
1.2 KiB
Bash
Executable File
63 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Generate system call table for perf. Derived from
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# powerpc script.
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#
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# Copyright IBM Corp. 2017
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# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
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# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
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# Changed by: Kim Phillips <kim.phillips@arm.com>
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gcc=$1
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hostcc=$2
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incpath=$3
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input=$4
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if ! test -r $input; then
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echo "Could not read input file" >&2
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exit 1
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fi
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create_table_from_c()
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{
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local sc nr last_sc
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create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
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{
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cat <<-_EoHEADER
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#include <stdio.h>
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#include "$input"
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int main(int argc, char *argv[])
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{
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_EoHEADER
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while read sc nr; do
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printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", __NR_$sc);"
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last_sc=$sc
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done
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printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);"
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printf "}\n"
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} | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
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$create_table_exe
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rm -f $create_table_exe
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}
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create_table()
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{
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echo "static const char *syscalltbl_arm64[] = {"
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create_table_from_c
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echo "};"
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}
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$gcc -E -dM -x c $input \
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|sed -ne 's/^#define __NR_//p' \
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|sort -t' ' -k2 -nu \
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|create_table
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