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| author | Alexander van Heukelum <heukelum@mailshack.com> | 2008-11-23 10:15:32 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-23 14:21:55 +0100 |
| commit | 6efdcfaf16cc4fc76651603e083cf3ec4bd1e6de (patch) | |
| tree | 5839f621451b6572546ed37c2ec69382e067d735 /arch/x86/kernel/entry_64.S | |
| parent | x86: include ENTRY/END in entry handlers in entry_64.S (diff) | |
| download | linux-6efdcfaf16cc4fc76651603e083cf3ec4bd1e6de.tar.xz linux-6efdcfaf16cc4fc76651603e083cf3ec4bd1e6de.zip | |
x86: KPROBE_ENTRY should be paired wth KPROBE_END
Impact: move some code out of .kprobes.text
KPROBE_ENTRY switches code generation to .kprobes.text, and KPROBE_END
uses .popsection to get back to the previous section (.text, normally).
Also replace ENDPROC by END, for consistency.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/entry_64.S')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 1a856c0b21a8..f2d546e16354 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1167,7 +1167,7 @@ paranoid_schedule: TRACE_IRQS_OFF jmp paranoid_userspace CFI_ENDPROC -END(paranoid_exit) +KPROBE_END(paranoid_exit) /* * Exception entry point. This expects an error code/orig_rax on the stack. @@ -1259,7 +1259,7 @@ gs_change: CFI_ADJUST_CFA_OFFSET -8 ret CFI_ENDPROC -ENDPROC(native_load_gs_index) +END(native_load_gs_index) .section __ex_table,"a" .align 8 @@ -1313,7 +1313,7 @@ ENTRY(kernel_thread) UNFAKE_STACK_FRAME ret CFI_ENDPROC -ENDPROC(kernel_thread) +END(kernel_thread) child_rip: pushq $0 # fake return address @@ -1329,7 +1329,7 @@ child_rip: mov %eax, %edi call do_exit CFI_ENDPROC -ENDPROC(child_rip) +END(child_rip) /* * execve(). This function needs to use IRET, not SYSRET, to set up all state properly. @@ -1360,9 +1360,7 @@ ENTRY(kernel_execve) UNFAKE_STACK_FRAME ret CFI_ENDPROC -ENDPROC(kernel_execve) - - +END(kernel_execve) /* runs on exception stack */ KPROBE_ENTRY(nmi) @@ -1437,14 +1435,14 @@ ENTRY(call_softirq) decl %gs:pda_irqcount ret CFI_ENDPROC -ENDPROC(call_softirq) +END(call_softirq) KPROBE_ENTRY(ignore_sysret) CFI_STARTPROC mov $-ENOSYS,%eax sysret CFI_ENDPROC -ENDPROC(ignore_sysret) +KPROBE_END(ignore_sysret) #ifdef CONFIG_XEN zeroentry xen_hypervisor_callback xen_do_hypervisor_callback |