Messages in this thread Patch in this message | | | Date | Fri, 18 Nov 2011 17:07:42 -0800 | From | "tip-bot for H. Peter Anvin" <> | Subject | [tip:x86/syscall] x86, syscall: Allow syscall offset to be symbolic |
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Commit-ID: 3f86886c72fb68088162c7e08cc7f85282f1860c Gitweb: http://git.kernel.org/tip/3f86886c72fb68088162c7e08cc7f85282f1860c Author: H. Peter Anvin <hpa@linux.intel.com> AuthorDate: Fri, 18 Nov 2011 17:01:19 -0800 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Fri, 18 Nov 2011 17:01:19 -0800
x86, syscall: Allow syscall offset to be symbolic
Allow the specified syscall offset to be symbolic, e.g. a macro. For offset system calls, this if nothing else makes the generated code easier to read.
Suggested-by: H. J. Lu <hjl.tools@gmail.com> Link: http://lkml.kernel.org/r/1321569446-20433-7-git-send-email-hpa@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- arch/x86/syscalls/syscallhdr.sh | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/x86/syscalls/syscallhdr.sh b/arch/x86/syscalls/syscallhdr.sh index b3c5930..31fd5f1 100644 --- a/arch/x86/syscalls/syscallhdr.sh +++ b/arch/x86/syscalls/syscallhdr.sh @@ -15,7 +15,11 @@ grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | ( echo "" while read nr abi name entry ; do - echo "#define __NR_${prefix}${name}" $((nr+offset)) + if [ -z "$offset" ]; then + echo "#define __NR_${prefix}${name} $nr" + else + echo "#define __NR_${prefix}${name} ($offset + $nr)" + fi done echo ""
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