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powerpc32, ftrace: port function graph tracer to ppc32, static only

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This patch ports the function graph tracer for PowerPC, but only
for static function tracing.

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>
This commit is contained in:
Steven Rostedt
2009-02-11 19:10:57 -05:00
committed by Benjamin Herrenschmidt
parent bf528a3a9b
commit fad4f47cc8
3 changed files with 44 additions and 3 deletions
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2
arch/powerpc/kernel/ftrace.c
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@@ -603,7 +603,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
"1: " PPC_LL "%[old], 0(%[parent])\n"
"2: " PPC_STL "%[return_hooker], 0(%[parent])\n"
" li %[faulted], 0\n"
"3:"
"3:\n"
".section .fixup, \"ax\"\n"
"4: li %[faulted], 1\n"