x86/syscalls: Refactor syscalltbl.sh
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>
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@ -3,13 +3,21 @@
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in="$1"
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out="$2"
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emit() {
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abi="$1"
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nr="$2"
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entry="$3"
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compat="$4"
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if [ -n "$compat" ]; then
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echo "__SYSCALL_${abi}($nr, $entry, $compat)"
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elif [ -n "$entry" ]; then
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echo "__SYSCALL_${abi}($nr, $entry, $entry)"
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fi
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}
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grep '^[0-9]' "$in" | sort -n | (
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while read nr abi name entry compat; do
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abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
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if [ -n "$compat" ]; then
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echo "__SYSCALL_${abi}($nr, $entry, $compat)"
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elif [ -n "$entry" ]; then
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echo "__SYSCALL_${abi}($nr, $entry, $entry)"
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fi
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emit "$abi" "$nr" "$entry" "$compat"
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done
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) > "$out"
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