Messages in this thread Patch in this message | | | Date | Tue, 02 Dec 2008 15:34:08 -0500 | From | Steven Rostedt <> | Subject | [PATCH 4/5] ftrace: clean up function graph asm |
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From: Steven Rostedt <srostedt@redhat.com>
Impact: clean up
There exists macros for x86 asm to handle x86_64 and i386. This patch updates function graph asm to use them.
Signed-off-by: Steven Rostedt <srostedt@redhat.com> --- arch/x86/kernel/ftrace.c | 20 ++++---------------- 1 files changed, 4 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 5883247..1a5b8f8 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -467,28 +467,16 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) * ignore such a protection. */ asm volatile( -#ifdef CONFIG_X86_64 - "1: movq (%[parent_old]), %[old]\n" - "2: movq %[return_hooker], (%[parent_replaced])\n" -#else - "1: movl (%[parent_old]), %[old]\n" - "2: movl %[return_hooker], (%[parent_replaced])\n" -#endif + "1: " _ASM_MOV " (%[parent_old]), %[old]\n" + "2: " _ASM_MOV " %[return_hooker], (%[parent_replaced])\n" " movl $0, %[faulted]\n" ".section .fixup, \"ax\"\n" "3: movl $1, %[faulted]\n" ".previous\n" - ".section __ex_table, \"a\"\n" -#ifdef CONFIG_X86_64 - " .quad 1b, 3b\n" - " .quad 2b, 3b\n" -#else - " .long 1b, 3b\n" - " .long 2b, 3b\n" -#endif - ".previous\n" + _ASM_EXTABLE(1b, 3b) + _ASM_EXTABLE(2b, 3b) : [parent_replaced] "=r" (parent), [old] "=r" (old), [faulted] "=r" (faulted) -- 1.5.6.5 --
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