diff options
| author | Andi Kleen <ak@suse.de> | 2006-04-22 02:35:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-22 09:19:52 -0700 |
| commit | ddbe3eec596fc2c6a513717168217bd19c901880 (patch) | |
| tree | 0c9d2222d43480d19753596d7a5cf6e6e858b7fa /arch/x86_64 | |
| parent | 304dbdb7a4fbb7f40a6ad5c5836fdd456c233c63 (diff) | |
| download | lwn-ddbe3eec596fc2c6a513717168217bd19c901880.tar.gz lwn-ddbe3eec596fc2c6a513717168217bd19c901880.zip | |
[PATCH] x86_64: Pass -32 to the assembler when compiling the 32bit vsyscall pages
This quietens warnings and actually fixes a bug. The unwind tables would
come out wrong without -32, causing pthread cancellation during them to
crash in the gcc runtime.
The problem seems to only happen with newer binutils (it doesn't happen
with 2.16.91.0.2 but happens wit 2.16.91.0.5)
Thanks to David Altobelli <david.altobelli@hp.com> and Brian Baker
<Brian.B@hp.com> for test case and initial analysis.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/ia32/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/ia32/Makefile b/arch/x86_64/ia32/Makefile index 929e6b0771f8..e9263b4975e0 100644 --- a/arch/x86_64/ia32/Makefile +++ b/arch/x86_64/ia32/Makefile @@ -27,5 +27,5 @@ $(obj)/vsyscall-sysenter.so $(obj)/vsyscall-syscall.so: \ $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE $(call if_changed,syscall) -AFLAGS_vsyscall-sysenter.o = -m32 -AFLAGS_vsyscall-syscall.o = -m32 +AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32 +AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32 |