diff options
| author | Andi Kleen <ak@suse.de> | 2006-08-30 13:37:08 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-08-30 19:05:15 -0400 |
| commit | c05991ed12fd71e539dd8de8f5663450cd0c934c (patch) | |
| tree | e9a86dac1c2bf688d0683be97a5de32af59c175e /arch/x86_64/kernel/head.S | |
| parent | 11012d419cfc0e0f78ca356aca03674217910124 (diff) | |
[PATCH] x86_64: Add kernel thread stack frame termination for properly stopping stack unwinds.
One open question: Should these added pushes perhaps be made
conditional upon CONFIG_STACK_UNWIND or CONFIG_UNWIND_INFO?
[AK: Not needed -- these are all very slow paths]
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/head.S')
| -rw-r--r-- | arch/x86_64/kernel/head.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index 6df05e6034fa..c9739ca81d06 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S | |||
| @@ -191,6 +191,7 @@ startup_64: | |||
| 191 | * jump | 191 | * jump |
| 192 | */ | 192 | */ |
| 193 | movq initial_code(%rip),%rax | 193 | movq initial_code(%rip),%rax |
| 194 | pushq $0 # fake return address | ||
| 194 | jmp *%rax | 195 | jmp *%rax |
| 195 | 196 | ||
| 196 | /* SMP bootup changes these two */ | 197 | /* SMP bootup changes these two */ |