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Diffstat (limited to 'arch/x86/kernel/entry_32.S')
-rw-r--r--arch/x86/kernel/entry_32.S18
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index f9762114983..74defe21ba4 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1190,7 +1190,7 @@ ENTRY(mcount)
jnz trace
#ifdef CONFIG_FUNCTION_RET_TRACER
cmpl $ftrace_stub, ftrace_function_return
- jnz trace_return
+ jnz ftrace_return_caller
#endif
.globl ftrace_stub
ftrace_stub:
@@ -1211,9 +1211,15 @@ trace:
popl %ecx
popl %eax
jmp ftrace_stub
+END(mcount)
+#endif /* CONFIG_DYNAMIC_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_FUNCTION_RET_TRACER
-trace_return:
+ENTRY(ftrace_return_caller)
+ cmpl $0, function_trace_stop
+ jne ftrace_stub
+
pushl %eax
pushl %ecx
pushl %edx
@@ -1223,7 +1229,8 @@ trace_return:
popl %edx
popl %ecx
popl %eax
- jmp ftrace_stub
+ ret
+END(ftrace_return_caller)
.globl return_to_handler
return_to_handler:
@@ -1237,10 +1244,7 @@ return_to_handler:
popl %ecx
popl %eax
ret
-#endif /* CONFIG_FUNCTION_RET_TRACER */
-END(mcount)
-#endif /* CONFIG_DYNAMIC_FTRACE */
-#endif /* CONFIG_FUNCTION_TRACER */
+#endif
.section .rodata,"a"
#include "syscall_table_32.S"