From 465428884765b43d642a967915e16c6c7cacbe8e Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 10 Feb 2009 22:19:54 -0800 Subject: powerpc64, tracing: add function graph tracer with dynamic tracing This is the port of the function graph tracer to PowerPC with dynamic tracing. Geoff Lavand tested on PS3. Tested-by: Geoff Levand Acked-by: Benjamin Herrenschmidt Signed-off-by: Steven Rostedt Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/entry_64.S | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/entry_64.S') diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index a32699e..9f61fd6 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -908,6 +908,12 @@ _GLOBAL(ftrace_caller) ftrace_call: bl ftrace_stub nop +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +.globl ftrace_graph_call +ftrace_graph_call: + b ftrace_graph_stub +_GLOBAL(ftrace_graph_stub) +#endif ld r0, 128(r1) mtlr r0 addi r1, r1, 112 @@ -946,7 +952,7 @@ _GLOBAL(ftrace_stub) #endif /* CONFIG_DYNAMIC_FTRACE */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER -ftrace_graph_caller: +_GLOBAL(ftrace_graph_caller) /* load r4 with local address */ ld r4, 128(r1) subi r4, r4, MCOUNT_INSN_SIZE -- cgit v1.1