diff options
| author | Jan Beulich <JBeulich@novell.com> | 2010-10-19 14:52:26 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-10-19 14:28:02 -0700 |
| commit | 3234282f33b29d349bcada40204fc7c8fda7fe72 (patch) | |
| tree | d1855c5d9d8e6db25b72b17461da1459cd51fa71 /Kbuild | |
| parent | d0ed0c32662e756e7daf85e70a5a27a9c1111331 (diff) | |
| download | linux-3234282f33b29d349bcada40204fc7c8fda7fe72.tar.gz | |
x86, asm: Fix CFI macro invocations to deal with shortcomings in gas
gas prior to (perhaps) 2.16.90 has problems with passing non- parenthesized expressions containing spaces to macros. Spaces, however, get inserted by cpp between any macro expanding to a number and a subsequent + or -. For the +, current x86 gas then removes the space again (future gas may not do so), but for the - the space gets retained and is then considered a separator between macro arguments. Fix the respective definitions for both the - and + cases, so that they neither contain spaces nor make cpp insert any (the latter by adding seemingly redundant parentheses). Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4CBDBEBA020000780001E05A@vpn.id2.novell.com> Cc: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'Kbuild')
| -rw-r--r-- | Kbuild | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Kbuild b/Kbuild index e3737ad72b5a..399593942a9b 100644 --- a/Kbuild +++ b/Kbuild @@ -53,7 +53,7 @@ targets += arch/$(SRCARCH)/kernel/asm-offsets.s # Default sed regexp - multiline due to syntax constraints define sed-y "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 (\2) /* \3 */:; \ s:->::; p;}" endef |