diff options
| author | Prasanna S Panchamukhi <prasanna@in.ibm.com> | 2005-09-06 15:19:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-07 16:57:59 -0700 |
| commit | 3d97ae5b958855ac007b6f56a0f94ab8ade09e9e (patch) | |
| tree | 6258b62fdbf4fcc7086e86d920e23609022d0881 /arch/i386/kernel/entry.S | |
| parent | d0aaff9796c3310326d10da44fc0faed352a1d29 (diff) | |
[PATCH] kprobes: prevent possible race conditions i386 changes
This patch contains the i386 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/i386/kernel/entry.S')
| -rw-r--r-- | arch/i386/kernel/entry.S | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index abb909793ef..3aad0383966 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -507,7 +507,7 @@ label: \ pushl $__KERNEL_CS; \ pushl $sysenter_past_esp -ENTRY(debug) +KPROBE_ENTRY(debug) cmpl $sysenter_entry,(%esp) jne debug_stack_correct FIX_STACK(12, debug_stack_correct, debug_esp_fix_insn) @@ -518,7 +518,7 @@ debug_stack_correct: movl %esp,%eax # pt_regs pointer call do_debug jmp ret_from_exception - + .previous .text /* * NMI is doubly nasty. It can happen _while_ we're handling * a debug fault, and the debug fault hasn't yet been able to @@ -591,13 +591,14 @@ nmi_16bit_stack: .long 1b,iret_exc .previous -ENTRY(int3) +KPROBE_ENTRY(int3) pushl $-1 # mark this as an int SAVE_ALL xorl %edx,%edx # zero error code movl %esp,%eax # pt_regs pointer call do_int3 jmp ret_from_exception + .previous .text ENTRY(overflow) pushl $0 @@ -631,17 +632,19 @@ ENTRY(stack_segment) pushl $do_stack_segment jmp error_code -ENTRY(general_protection) +KPROBE_ENTRY(general_protection) pushl $do_general_protection jmp error_code + .previous .text ENTRY(alignment_check) pushl $do_alignment_check jmp error_code -ENTRY(page_fault) +KPROBE_ENTRY(page_fault) pushl $do_page_fault jmp error_code + .previous .text #ifdef CONFIG_X86_MCE ENTRY(machine_check) |