kprobes/x86-64: Fix to move common_interrupt to .kprobes.text

[pandora-kernel.git] / arch / x86 / kernel / entry_64.S

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index de74f0a..36e2ef5 100644 (file)
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -135,6 +135,7 @@ ENTRY(ftrace_graph_caller)
 
        leaq 8(%rbp), %rdi
        movq 0x38(%rsp), %rsi
+       movq (%rbp), %rdx
        subq $MCOUNT_INSN_SIZE, %rsi
 
        call    prepare_ftrace_return
@@ -150,6 +151,7 @@ GLOBAL(return_to_handler)
        /* Save the return values */
        movq %rax, (%rsp)
        movq %rdx, 8(%rsp)
+       movq %rbp, %rdi
 
        call ftrace_return_to_handler
 
@@ -807,6 +809,10 @@ END(interrupt)
        call \func
        .endm
 
+/*
+ * Interrupt entry/exit should be protected against kprobes
+ */
+       .pushsection .kprobes.text, "ax"
        /*
         * The interrupt stubs push (~vector+0x80) onto the stack and
         * then jump to common_interrupt.
@@ -945,6 +951,10 @@ ENTRY(retint_kernel)
 
        CFI_ENDPROC
 END(common_interrupt)
+/*
+ * End of kprobes section
+ */
+       .popsection
 
 /*
  * APIC interrupts.