diff options
| author | Jason Baron <jbaron@redhat.com> | 2009-08-10 20:52:31 (GMT) |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-08-11 18:35:26 (GMT) |
| commit | a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f (patch) | |
| tree | b5720cdb3168ba0894b4bd2c1acc004cb19a692c /arch/x86 | |
| parent | 63fbdab3157b72467013fe4dcf88c85e45280ef7 (diff) | |
| download | linux-a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f.tar.xz | |
tracing: Add syscall tracepoints
add two tracepoints in syscall exit and entry path, conditioned on
TIF_SYSCALL_FTRACE. Supports the syscall trace event code.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/ptrace.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 09ecbde..34dd6f1 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -37,6 +37,9 @@ #include <trace/syscall.h> +DEFINE_TRACE(syscall_enter); +DEFINE_TRACE(syscall_exit); + #include "tls.h" enum x86_regset { @@ -1498,7 +1501,7 @@ asmregparm long syscall_trace_enter(struct pt_regs *regs) ret = -1L; if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE))) - ftrace_syscall_enter(regs); + trace_syscall_enter(regs, regs->orig_ax); if (unlikely(current->audit_context)) { if (IS_IA32) @@ -1524,7 +1527,7 @@ asmregparm void syscall_trace_leave(struct pt_regs *regs) audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax); if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE))) - ftrace_syscall_exit(regs); + trace_syscall_exit(regs, regs->ax); if (test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, 0); |