sh: Wire up HAVE_SYSCALL_TRACEPOINTS.

This is necessary to get ftrace syscall tracing working again.. a fairly trivial and mechanical change. The one benefit is that this can also be enabled on sh64, despite not having its own ftrace port. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
mariux64 · Sep 16, 2009 · a74f7e0 · a74f7e0
1 parent ea88023
commit a74f7e0
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Showing 4 changed files with 20 additions and 13 deletions.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
@@ -20,6 +20,7 @@ config SUPERH
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
+	select HAVE_SYSCALL_TRACEPOINTS
 	select RTC_LIB
 	select GENERIC_ATOMIC64
 	help

diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
@@ -116,7 +116,7 @@ extern void free_thread_info(struct thread_info *ti);
 #define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
 #define TIF_SECCOMP		6	/* secure computing */
 #define TIF_NOTIFY_RESUME	7	/* callback before returning to user */
-#define TIF_SYSCALL_FTRACE	8	/* for ftrace syscall instrumentation */
+#define TIF_SYSCALL_TRACEPOINT	8	/* for ftrace syscall instrumentation */
 #define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
 #define TIF_POLLING_NRFLAG	17	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE		18
@@ -130,7 +130,7 @@ extern void free_thread_info(struct thread_info *ti);
 #define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
-#define _TIF_SYSCALL_FTRACE	(1 << TIF_SYSCALL_FTRACE)
+#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_USEDFPU		(1 << TIF_USEDFPU)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_FREEZE		(1 << TIF_FREEZE)
@@ -144,13 +144,13 @@ extern void free_thread_info(struct thread_info *ti);
 /* work to do in syscall trace */
 #define _TIF_WORK_SYSCALL_MASK	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
 				 _TIF_SYSCALL_AUDIT | _TIF_SECCOMP    | \
-				 _TIF_SYSCALL_FTRACE)
+				 _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do on any return to u-space */
 #define _TIF_ALLWORK_MASK	(_TIF_SYSCALL_TRACE | _TIF_SIGPENDING      | \
 				 _TIF_NEED_RESCHED  | _TIF_SYSCALL_AUDIT   | \
 				 _TIF_SINGLESTEP    | _TIF_RESTORE_SIGMASK | \
-				 _TIF_NOTIFY_RESUME | _TIF_SYSCALL_FTRACE)
+				 _TIF_NOTIFY_RESUME | _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK		(_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \

diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
@@ -34,7 +34,8 @@
 #include <asm/syscalls.h>
 #include <asm/fpu.h>
 
-#include <trace/syscall.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/syscalls.h>
 
 /*
  * This routine will get a word off of the process kernel stack.
@@ -461,10 +462,8 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-#ifdef CONFIG_FTRACE_SYSCALLS
-	if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
-		ftrace_syscall_enter(regs);
-#endif
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_enter(regs, regs->regs[0]);
 
 	if (unlikely(current->audit_context))
 		audit_syscall_entry(audit_arch(), regs->regs[3],
@@ -482,10 +481,8 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 		audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]),
 				   regs->regs[0]);
 
-#ifdef CONFIG_FTRACE_SYSCALLS
-	if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
-		ftrace_syscall_exit(regs);
-#endif
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_exit(regs, regs->regs[0]);
 
 	step = test_thread_flag(TIF_SINGLESTEP);
 	if (step || test_thread_flag(TIF_SYSCALL_TRACE))

diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
@@ -40,6 +40,9 @@
 #include <asm/syscalls.h>
 #include <asm/fpu.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/syscalls.h>
+
 /* This mask defines the bits of the SR which the user is not allowed to
    change, which are everything except S, Q, M, PR, SZ, FR. */
 #define SR_MASK      (0xffff8cfd)
@@ -438,6 +441,9 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1LL;
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_enter(regs, regs->regs[9]);
+
 	if (unlikely(current->audit_context))
 		audit_syscall_entry(audit_arch(), regs->regs[1],
 				    regs->regs[2], regs->regs[3],
@@ -452,6 +458,9 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 		audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]),
 				   regs->regs[9]);
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_exit(regs, regs->regs[9]);
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
 }