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authorMatt Fleming <matt@console-pimps.org>2009-07-06 20:16:33 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-07-06 20:16:33 +0900
commitc652d780c9cf7f860141de232b37160fe013feca (patch)
tree110c95ee2b66a7c9b032be8edad36f9b53f82af0 /arch/sh/kernel/ptrace_32.c
parentc1340c053be7a43d837a3acb352d5008be865a55 (diff)
sh: Add ftrace syscall tracing support
Now that I've added TIF_SYSCALL_FTRACE the thread flags do not fit into a single byte any more. Code testing them now needs to be aware of the upper and lower bytes. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/ptrace_32.c')
-rw-r--r--arch/sh/kernel/ptrace_32.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 3392e835a374..c198eceaee94 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -34,6 +34,8 @@
#include <asm/syscalls.h>
#include <asm/fpu.h>
+#include <trace/syscall.h>
+
/*
* This routine will get a word off of the process kernel stack.
*/
@@ -459,6 +461,9 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
*/
ret = -1L;
+ if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
+ ftrace_syscall_enter(regs);
+
if (unlikely(current->audit_context))
audit_syscall_entry(audit_arch(), regs->regs[3],
regs->regs[4], regs->regs[5],
@@ -475,6 +480,9 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]),
regs->regs[0]);
+ if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
+ ftrace_syscall_exit(regs);
+
step = test_thread_flag(TIF_SINGLESTEP);
if (step || test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, step);