GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 07:12:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

tracing/ftrace: syscall tracing infrastructure, basics

Browse source 
Provide basic callbacks to do syscall tracing.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <1236401580-5758-2-git-send-email-fweisbec@gmail.com>
[ simplified it to a trace_printk() for now. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker 2009-03-07 05:52:59 +01:00 • committed by Ingo Molnar
parent 4c6ed8f496
commit ee08c6eccb
5 changed files with 147 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
include/linux/ftrace.h
View file

@ -503,4 +503,25 @@ static inline void trace_hw_branch_oops(void) {}
#endif /* CONFIG_HW_BRANCH_TRACER */
/*
* A syscall entry in the ftrace syscalls array.
*
* @syscall_nr: syscall number
*/
struct syscall_trace_entry {
int syscall_nr;
};
#ifdef CONFIG_FTRACE_SYSCALLS
extern void start_ftrace_syscalls(void);
extern void stop_ftrace_syscalls(void);
extern void ftrace_syscall_enter(struct pt_regs *regs);
extern void ftrace_syscall_exit(struct pt_regs *regs);
#else
static inline void start_ftrace_syscalls(void) { }
static inline void stop_ftrace_syscalls(void) { }
static inline void ftrace_syscall_enter(struct pt_regs *regs) { }
static inline void ftrace_syscall_exit(struct pt_regs *regs) { }
#endif
#endif /* _LINUX_FTRACE_H */