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Subject[PATCH 3/9] ftrace, ia64: Add macro for ftrace_caller
From: Shaohua Li <shaohua.li@intel.com>

Define FTRACE_ADDR. In IA64, a function pointer isn't a 'unsigned long' but a
'struct {unsigned long ip, unsigned long gp}'.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
include/linux/ftrace.h | 4 ++++
kernel/trace/ftrace.c | 2 +-
2 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 677432b..0547214 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -126,6 +126,10 @@ extern int ftrace_update_ftrace_func(ftrace_func_t func);
extern void ftrace_caller(void);
extern void ftrace_call(void);
extern void mcount_call(void);
+
+#ifndef FTRACE_ADDR
+#define FTRACE_ADDR ((unsigned long)ftrace_caller)
+#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
extern void ftrace_graph_caller(void);
extern int ftrace_enable_ftrace_graph_caller(void);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 76bb884..9f53610 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -455,7 +455,7 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
unsigned long ip, fl;
unsigned long ftrace_addr;

- ftrace_addr = (unsigned long)ftrace_caller;
+ ftrace_addr = (unsigned long)FTRACE_ADDR;

ip = rec->ip;

--
1.5.6.5
--


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