[PATCH] kprobes: prevent possible race conditions i386 changes
[linux-2.6.git] / arch / i386 / kernel / entry.S
index abb9097..3aad038 100644 (file)
@@ -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)