From 5e9ad7df9fd056f1071af8aa91034a1c3170257d Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 18 Aug 2009 10:41:57 +0200 Subject: [PATCH] [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 Acked-by: Martin Schwidefsky Cc: Heiko Carstens Cc: Jason Baron Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- arch/s390/kernel/ptrace.c | 7 +++++-- 1 file 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); -- 1.8.2.3