diff options
| author | Andi Kleen <ak@suse.de> | 2006-12-09 15:33:36 -0500 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-09 15:33:36 -0500 |
| commit | 1bac3b383a93a4a920ffc57441eb133c78567fbd (patch) | |
| tree | d9d767a3334271e3cde7116957f5eaa365b973be /arch/i386/kernel/vmlinux.lds.S | |
| parent | 92715e282be7c7488f892703c8d39b08976a833b (diff) | |
[PATCH] x86: Work around gcc 4.2 over aggressive optimizer
The new PDA code uses a dummy _proxy_pda variable to describe
memory references to the PDA. It is never referenced
in inline assembly, but exists as input/output arguments.
gcc 4.2 in some cases can CSE references to this which causes
unresolved symbols. Define it to zero to avoid this.
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/i386/kernel/vmlinux.lds.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S index 16d3c7133ad7..a53c8b1854b5 100644 --- a/arch/i386/kernel/vmlinux.lds.S +++ b/arch/i386/kernel/vmlinux.lds.S | |||
| @@ -26,6 +26,7 @@ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") | |||
| 26 | OUTPUT_ARCH(i386) | 26 | OUTPUT_ARCH(i386) |
| 27 | ENTRY(phys_startup_32) | 27 | ENTRY(phys_startup_32) |
| 28 | jiffies = jiffies_64; | 28 | jiffies = jiffies_64; |
| 29 | _proxy_pda = 0; | ||
| 29 | 30 | ||
| 30 | PHDRS { | 31 | PHDRS { |
| 31 | text PT_LOAD FLAGS(5); /* R_E */ | 32 | text PT_LOAD FLAGS(5); /* R_E */ |