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| author | Steven Rostedt <rostedt@goodmis.org> | 2009-02-11 20:06:43 -0500 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-23 10:48:55 +1100 |
| commit | 60ce8f7260d9ae4ff17548f5a275edfbc200187a (patch) | |
| tree | 6cc3a37f27ba582434b464a94fe0e1c37b8f8e08 /arch | |
| parent | fad4f47cc8b2b8f7e7d062c40c66188cdf783137 (diff) | |
| download | blackbird-op-linux-60ce8f7260d9ae4ff17548f5a275edfbc200187a.tar.gz blackbird-op-linux-60ce8f7260d9ae4ff17548f5a275edfbc200187a.zip | |
powerpc32, ftrace: dynamic function graph tracer
This patch gets function graph tracing working with dynamic function
tracer on PowerPC32.
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/Kconfig | 2 | ||||
| -rw-r--r-- | 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 f50b1c41a699..e46995a21685 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 12247b937d25..0506f54b4237 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 |
