tracing/function-return-tracer: change the name into function-graph-tracer
Impact: cleanup
This patch changes the name of the "return function tracer" into
function-graph-tracer which is a more suitable name for a tracing
which makes one able to retrieve the ordered call stack during
the code flow.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index af2bc36..64939a0 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -14,7 +14,7 @@
CFLAGS_REMOVE_ftrace.o = -pg
endif
-ifdef CONFIG_FUNCTION_RET_TRACER
+ifdef CONFIG_FUNCTION_GRAPH_TRACER
# Don't trace __switch_to() but let it for function tracer
CFLAGS_REMOVE_process_32.o = -pg
endif
@@ -70,7 +70,7 @@
obj-$(CONFIG_X86_IO_APIC) += io_apic.o
obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
-obj-$(CONFIG_FUNCTION_RET_TRACER) += ftrace.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 74defe2..2b1f0f0 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1188,9 +1188,9 @@
cmpl $ftrace_stub, ftrace_trace_function
jnz trace
-#ifdef CONFIG_FUNCTION_RET_TRACER
- cmpl $ftrace_stub, ftrace_function_return
- jnz ftrace_return_caller
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ cmpl $ftrace_stub, ftrace_graph_function
+ jnz ftrace_graph_caller
#endif
.globl ftrace_stub
ftrace_stub:
@@ -1215,8 +1215,8 @@
#endif /* CONFIG_DYNAMIC_FTRACE */
#endif /* CONFIG_FUNCTION_TRACER */
-#ifdef CONFIG_FUNCTION_RET_TRACER
-ENTRY(ftrace_return_caller)
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ENTRY(ftrace_graph_caller)
cmpl $0, function_trace_stop
jne ftrace_stub
@@ -1230,7 +1230,7 @@
popl %ecx
popl %eax
ret
-END(ftrace_return_caller)
+END(ftrace_graph_caller)
.globl return_to_handler
return_to_handler:
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index bb137f7..3595a4c 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -323,7 +323,7 @@
}
#endif
-#ifdef CONFIG_FUNCTION_RET_TRACER
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
#ifndef CONFIG_DYNAMIC_FTRACE
@@ -389,11 +389,11 @@
*/
unsigned long ftrace_return_to_handler(void)
{
- struct ftrace_retfunc trace;
+ struct ftrace_graph_ret trace;
pop_return_trace(&trace.ret, &trace.calltime, &trace.func,
&trace.overrun);
trace.rettime = cpu_clock(raw_smp_processor_id());
- ftrace_function_return(&trace);
+ ftrace_graph_function(&trace);
return trace.ret;
}
@@ -440,12 +440,12 @@
);
if (WARN_ON(faulted)) {
- unregister_ftrace_return();
+ unregister_ftrace_graph();
return;
}
if (WARN_ON(!__kernel_text_address(old))) {
- unregister_ftrace_return();
+ unregister_ftrace_graph();
*parent = old;
return;
}
@@ -456,4 +456,4 @@
*parent = old;
}
-#endif /* CONFIG_FUNCTION_RET_TRACER */
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */