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authorShaohua Li <shaohua.li@intel.com>2009-01-09 11:29:42 +0800
committerIngo Molnar <mingo@elte.hu>2009-01-14 12:11:18 +0100
commitf00012074b1a1a67d9c8603617bbbab267347ca6 (patch)
tree7a5ec4d30a513914277ccaa607ff88ecf294f84a
parent25aac9dc7c8c73798c1be8aa36141f980d32579e (diff)
downloadop-kernel-dev-f00012074b1a1a67d9c8603617bbbab267347ca6.zip
op-kernel-dev-f00012074b1a1a67d9c8603617bbbab267347ca6.tar.gz
ftrace, ia64: Add macro for ftrace_caller
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> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--include/linux/ftrace.h4
-rw-r--r--kernel/trace/ftrace.c2
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;
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