2 files changed, 21 insertions, 17 deletions

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 2f96256dc515..e8cdf715a546 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1196,8 +1196,9 @@ sys_rt_sigreturn:
         be      1f
          nop
 
+        add     %sp, STACKFRAME_SZ, %o0
         call    syscall_trace
-         nop
+         mov    1, %o1
 
 1:
         /* We are returning to a signal handler. */
@@ -1287,8 +1288,12 @@ linux_fast_syscall:
          mov    %i3, %o3
 
 linux_syscall_trace:
+        add     %sp, STACKFRAME_SZ, %o0
         call    syscall_trace
-         nop
+         mov    0, %o1
+        cmp     %o0, 0
+        bne     3f
+         mov    -ENOSYS, %o0
         mov     %i0, %o0
         mov     %i1, %o1
         mov     %i2, %o2
@@ -1337,6 +1342,7 @@ syscall_is_too_hard:
         call    %l7
          mov    %i5, %o5
 
+3:
         st      %o0, [%sp + STACKFRAME_SZ + PT_I0]
 
 ret_sys_call:
@@ -1374,6 +1380,8 @@ ret_sys_call:
          st     %l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 linux_syscall_trace2:
+        add     %sp, STACKFRAME_SZ, %o0
+        mov     1, %o1
         call    syscall_trace
          add    %l1, 0x4, %l2                   /* npc = npc+4 */
         st      %l1, [%sp + STACKFRAME_SZ + PT_PC]
diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c
index 81f3b929743f..20699c701412 100644
--- a/arch/sparc/kernel/ptrace.c
+++ b/arch/sparc/kernel/ptrace.c
@@ -21,6 +21,7 @@
 #include <linux/signal.h>
 #include <linux/regset.h>
 #include <linux/elf.h>
+#include <linux/tracehook.h>
 
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -450,21 +451,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         return ret;
 }
 
-asmlinkage void syscall_trace(void)
+asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p)
 {
-        if (!test_thread_flag(TIF_SYSCALL_TRACE))
-                return;
-        if (!(current->ptrace & PT_PTRACED))
-                return;
-        ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-                                 ? 0x80 : 0));
-        /*
-         * this isn't the same as continuing with a signal, but it will do
-         * for normal use.  strace only continues with a signal if the
-         * stopping signal is not SIGTRAP.  -brl
-         */
-        if (current->exit_code) {
-                send_sig (current->exit_code, current, 1);
-                current->exit_code = 0;
+        int ret = 0;
+
+        if (test_thread_flag(TIF_SYSCALL_TRACE)) {
+                if (syscall_exit_p)
+                        tracehook_report_syscall_exit(regs, 0);
+                else
+                        ret = tracehook_report_syscall_entry(regs);
         }
+
+        return ret;
 }