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authorRalf Baechle <ralf@linux-mips.org>2013-09-06 20:24:48 +0200
committerRalf Baechle <ralf@linux-mips.org>2013-10-29 21:25:16 +0100
commit1d7bf993e0731b4ac790667c196b2a2d787f95c3 (patch)
tree235093a4593d6c68b87b5d602a2f1d0dde3ad085 /arch/mips/kernel
parent0dfa95aaa817eec8473abf5465eae135b1cf1138 (diff)
MIPS: ftrace: Add support for syscall tracepoints.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/ptrace.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index b996efcccc11..b52e1d2b33e0 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -29,6 +29,7 @@
#include <linux/tracehook.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
+#include <linux/ftrace.h>
#include <asm/byteorder.h>
#include <asm/cpu.h>
@@ -43,6 +44,9 @@
#include <asm/bootinfo.h>
#include <asm/reg.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/syscalls.h>
+
/*
* Called by kernel/ptrace.c when detaching..
*
@@ -664,6 +668,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
tracehook_report_syscall_entry(regs))
ret = -1;
+ if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+ trace_sys_enter(regs, regs->regs[2]);
+
audit_syscall_entry(__syscall_get_arch(),
regs->regs[2],
regs->regs[4], regs->regs[5],
@@ -685,6 +692,9 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(regs);
+ if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+ trace_sys_exit(regs, regs->regs[2]);
+
if (test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, 0);

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