[PATCH 7/7][RFC] powerpc32, ftrace: dynamic function graph tracer
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2009-02-12 01:14:23
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Steven Rostedt <rostedt@gollum.(none)> This patch gets function graph tracing working with dynamic function tracer on PowerPC32. Signed-off-by: Steven Rostedt <rostedt@gollum.(none)> --- arch/powerpc/Kconfig | 2 +- arch/powerpc/kernel/entry_32.S | 8 ++++++-- 2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9e4bd20..40b7981 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -111,7 +111,7 @@ config PPC select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_TRACER - select HAVE_FUNCTION_GRAPH_TRACER if PPC64 || !DYNAMIC_FTRACE + select HAVE_FUNCTION_GRAPH_TRACER select ARCH_WANT_OPTIONAL_GPIOLIB select HAVE_IDE select HAVE_IOREMAP_PROT
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 9cf7083..529bfbb 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S@@ -1183,7 +1183,12 @@ _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 MCOUNT_RESTORE_FRAME /* old link register ends up in ctr reg */ bctr
@@ -1205,7 +1210,6 @@ _GLOBAL(_mcount) b ftrace_graph_caller #endif MCOUNT_RESTORE_FRAME - bctr #endif
--
1.5.6.5
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