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ftrace, ia64: Add macro for ftrace_caller

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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>
This commit is contained in:
Shaohua Li 2009-01-09 11:29:42 +08:00 • committed by Ingo Molnar
parent 25aac9dc7c
commit f00012074b
2 changed files with 5 additions and 1 deletions
include/linux
ftrace.h
kernel/trace
ftrace.c

4
include/linux/ftrace.h
View file

@ -126,6 +126,10 @@ extern int ftrace_update_ftrace_func(ftrace_func_t func);
extern void ftrace_caller(void); extern void ftrace_caller(void);
extern void ftrace_call(void); extern void ftrace_call(void);
extern void mcount_call(void); extern void mcount_call(void);
#ifndef FTRACE_ADDR
#define FTRACE_ADDR ((unsigned long)ftrace_caller)
#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER #ifdef CONFIG_FUNCTION_GRAPH_TRACER
extern void ftrace_graph_caller(void); extern void ftrace_graph_caller(void);
extern int ftrace_enable_ftrace_graph_caller(void); extern int ftrace_enable_ftrace_graph_caller(void);

2
kernel/trace/ftrace.c
View file

@ -455,7 +455,7 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
unsigned long ip, fl; unsigned long ip, fl;
unsigned long ftrace_addr; unsigned long ftrace_addr;
ftrace_addr = (unsigned long)ftrace_caller; ftrace_addr = (unsigned long)FTRACE_ADDR;
ip = rec->ip; ip = rec->ip;