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authorPrasanna S Panchamukhi <prasanna@in.ibm.com>2005-09-06 15:19:28 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 16:57:59 -0700
commit0f2fbdcbb041f9087da42f8ac2e81f2817098d2a (patch)
tree3f54f91ca6972c6567cfe529b33fafb622b2d51c /arch/x86_64/kernel/entry.S
parent3d97ae5b958855ac007b6f56a0f94ab8ade09e9e (diff)
downloadblackbird-op-linux-0f2fbdcbb041f9087da42f8ac2e81f2817098d2a.tar.gz
blackbird-op-linux-0f2fbdcbb041f9087da42f8ac2e81f2817098d2a.zip
[PATCH] kprobes: prevent possible race conditions x86_64 changes
This patch contains the x86_64 architecture specific changes to prevent the possible race conditions. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/entry.S')
-rw-r--r--arch/x86_64/kernel/entry.S12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 096d470e280f..be51dbe1f75e 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -784,8 +784,9 @@ ENTRY(execve)
ret
CFI_ENDPROC
-ENTRY(page_fault)
+KPROBE_ENTRY(page_fault)
errorentry do_page_fault
+ .previous .text
ENTRY(coprocessor_error)
zeroentry do_coprocessor_error
@@ -797,13 +798,14 @@ ENTRY(device_not_available)
zeroentry math_state_restore
/* runs on exception stack */
-ENTRY(debug)
+KPROBE_ENTRY(debug)
CFI_STARTPROC
pushq $0
CFI_ADJUST_CFA_OFFSET 8
paranoidentry do_debug
jmp paranoid_exit
CFI_ENDPROC
+ .previous .text
/* runs on exception stack */
ENTRY(nmi)
@@ -854,8 +856,9 @@ paranoid_schedule:
jmp paranoid_userspace
CFI_ENDPROC
-ENTRY(int3)
+KPROBE_ENTRY(int3)
zeroentry do_int3
+ .previous .text
ENTRY(overflow)
zeroentry do_overflow
@@ -892,8 +895,9 @@ ENTRY(stack_segment)
jmp paranoid_exit
CFI_ENDPROC
-ENTRY(general_protection)
+KPROBE_ENTRY(general_protection)
errorentry do_general_protection
+ .previous .text
ENTRY(alignment_check)
errorentry do_alignment_check
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