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| author | Ingo Molnar <mingo@elte.hu> | 2009-08-18 08:41:57 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-19 12:16:15 (GMT) |
| commit | 5e9ad7df9fd056f1071af8aa91034a1c3170257d (patch) | |
| tree | 2f5a2de49bbbdba1b75502a554caecf025ed35a8 /arch/s390/kernel/ptrace.c | |
| parent | 3be04b471b95b870bd129a138463756629e86f3f (diff) | |
| download | linux-5e9ad7df9fd056f1071af8aa91034a1c3170257d.tar.xz | |
[S390] ftrace: update system call tracer support
Commit fb34a08c3 ("tracing: Add trace events for each syscall
entry/exit") changed the lowlevel API to ftrace syscall tracing
but did not update s390 which started making use of it recently.
This broke the s390 build, as reported by Paul Mundt.
Update the callbacks with the syscall number and the syscall
return code values. This allows per syscall tracepoints,
syscall argument enumeration /debug/tracing/events/syscalls/
and perfcounters support and integration on s390 too.
Reported-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <tip-fb34a08c3469b2be9eae626ccb96476b4687b810@git.kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 43acd73..c5e87d8 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -51,6 +51,9 @@ #include "compat_ptrace.h" #endif +DEFINE_TRACE(syscall_enter); +DEFINE_TRACE(syscall_exit); + enum s390_regset { REGSET_GENERAL, REGSET_FP, @@ -662,7 +665,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) } if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE))) - ftrace_syscall_enter(regs); + trace_syscall_enter(regs, regs->gprs[2]); if (unlikely(current->audit_context)) audit_syscall_entry(is_compat_task() ? @@ -680,7 +683,7 @@ asmlinkage void do_syscall_trace_exit(struct pt_regs *regs) regs->gprs[2]); if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE))) - ftrace_syscall_exit(regs); + trace_syscall_exit(regs, regs->gprs[2]); if (test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, 0); |