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x86/syscalls: Refactor syscalltbl.sh

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This splits out the code to emit a syscall line.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1bfcbba991f5cfaa9291ff950a593daa972a205f.1454022279.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Lutomirski 2016-01-28 15:11:21 -08:00 committed by Ingo Molnar
parent e21d50f386
commit fba324744b
1 changed files with 13 additions and 5 deletions
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18
arch/x86/entry/syscalls/syscalltbl.sh
View file

@ -3,13 +3,21 @@
in="$1"
out="$2"
emit() {
abi="$1"
nr="$2"
entry="$3"
compat="$4"
if [ -n "$compat" ]; then
echo "__SYSCALL_${abi}($nr, $entry, $compat)"
elif [ -n "$entry" ]; then
echo "__SYSCALL_${abi}($nr, $entry, $entry)"
fi
}
grep '^[0-9]' "$in" | sort -n | (
while read nr abi name entry compat; do
abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
if [ -n "$compat" ]; then
echo "__SYSCALL_${abi}($nr, $entry, $compat)"
elif [ -n "$entry" ]; then
echo "__SYSCALL_${abi}($nr, $entry, $entry)"
fi
emit "$abi" "$nr" "$entry" "$compat"
done
) > "$out"