diff options
| -rw-r--r-- | Documentation/asm-annotations.rst | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/ftrace_32.S | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/ftrace_64.S | 13 |
3 files changed, 11 insertions, 14 deletions
diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst index 29ccd6e61fe5..f55c2bb74d00 100644 --- a/Documentation/asm-annotations.rst +++ b/Documentation/asm-annotations.rst @@ -117,9 +117,9 @@ This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above. So in most cases, developers should write something like in the following example, having some asm instructions in between the macros, of course:: - SYM_FUNC_START(function_hook) + SYM_FUNC_START(memset) ... asm insns ... - SYM_FUNC_END(function_hook) + SYM_FUNC_END(memset) In fact, this kind of annotation corresponds to the now deprecated ``ENTRY`` and ``ENDPROC`` macros. diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S index 8ed1f5d371f0..e8a9f8370112 100644 --- a/arch/x86/kernel/ftrace_32.S +++ b/arch/x86/kernel/ftrace_32.S @@ -12,18 +12,16 @@ #include <asm/frame.h> #include <asm/asm-offsets.h> -# define function_hook __fentry__ -EXPORT_SYMBOL(__fentry__) - #ifdef CONFIG_FRAME_POINTER # define MCOUNT_FRAME 1 /* using frame = true */ #else # define MCOUNT_FRAME 0 /* using frame = false */ #endif -SYM_FUNC_START(function_hook) +SYM_FUNC_START(__fentry__) ret -SYM_FUNC_END(function_hook) +SYM_FUNC_END(__fentry__) +EXPORT_SYMBOL(__fentry__) SYM_CODE_START(ftrace_caller) diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S index 69c8d1b9119e..6e8961ca3605 100644 --- a/arch/x86/kernel/ftrace_64.S +++ b/arch/x86/kernel/ftrace_64.S @@ -14,9 +14,6 @@ .code64 .section .entry.text, "ax" -# define function_hook __fentry__ -EXPORT_SYMBOL(__fentry__) - #ifdef CONFIG_FRAME_POINTER /* Save parent and function stack frames (rip and rbp) */ # define MCOUNT_FRAME_SIZE (8+16*2) @@ -132,9 +129,10 @@ EXPORT_SYMBOL(__fentry__) #ifdef CONFIG_DYNAMIC_FTRACE -SYM_FUNC_START(function_hook) +SYM_FUNC_START(__fentry__) retq -SYM_FUNC_END(function_hook) +SYM_FUNC_END(__fentry__) +EXPORT_SYMBOL(__fentry__) SYM_FUNC_START(ftrace_caller) /* save_mcount_regs fills in first two parameters */ @@ -248,7 +246,7 @@ SYM_FUNC_END(ftrace_regs_caller) #else /* ! CONFIG_DYNAMIC_FTRACE */ -SYM_FUNC_START(function_hook) +SYM_FUNC_START(__fentry__) cmpq $ftrace_stub, ftrace_trace_function jnz trace @@ -279,7 +277,8 @@ trace: restore_mcount_regs jmp fgraph_trace -SYM_FUNC_END(function_hook) +SYM_FUNC_END(__fentry__) +EXPORT_SYMBOL(__fentry__) #endif /* CONFIG_DYNAMIC_FTRACE */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER |