[SPARC]: Fix ptracing of syscalls.

arch/sparc/kernel/asm-offsets.c

@@ -22,8 +22,6 @@
 int foo(void)
 {
 	DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread));
-	DEFINE(AOFF_task_ptrace, offsetof(struct task_struct, ptrace));
-	DEFINE(AOFF_task_blocked, offsetof(struct task_struct, blocked));
 	BLANK();
 	/* XXX This is the stuff for sclow.S, kill it. */
 	DEFINE(AOFF_task_pid, offsetof(struct task_struct, pid));

arch/sparc/kernel/entry.S

@@ -1246,9 +1246,8 @@ C_LABEL(sys_ptrace):
 	call	C_LABEL(do_ptrace)
 	 add	%sp, STACKFRAME_SZ, %o0
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1297,9 +1296,8 @@ C_LABEL(sys_sigpause):
 	call	C_LABEL(do_sigpause)
 	 add	%sp, STACKFRAME_SZ, %o1
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1316,9 +1314,8 @@ C_LABEL(sys_sigsuspend):
 	call	C_LABEL(do_sigsuspend)
 	 add	%sp, STACKFRAME_SZ, %o0
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1336,9 +1333,8 @@ C_LABEL(sys_rt_sigsuspend):
 	call	C_LABEL(do_rt_sigsuspend)
 	 add	%sp, STACKFRAME_SZ, %o2
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1355,9 +1351,8 @@ C_LABEL(sys_sigreturn):
 	call	C_LABEL(do_sigreturn)
 	 add	%sp, STACKFRAME_SZ, %o0
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1376,9 +1371,8 @@ C_LABEL(sys_rt_sigreturn):
 	call	C_LABEL(do_rt_sigreturn)
 	 add	%sp, STACKFRAME_SZ, %o0
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
-	andcc	%l5, 0x02, %g0
+	ld	[%curptr + TI_FLAGS], %l5
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	be	1f
 	 nop
 
@@ -1512,10 +1506,9 @@ syscall_is_too_hard:
 	mov	%i1, %o1
 	mov	%i2, %o2
 
-	ld	[%curptr + TI_TASK], %l5
-	ld	[%l5 + AOFF_task_ptrace], %l5
+	ld	[%curptr + TI_FLAGS], %l5
 	mov	%i3, %o3
-	andcc	%l5, 0x02, %g0
+	andcc	%l5, _TIF_SYSCALL_TRACE, %g0
 	mov	%i4, %o4
 	bne	linux_syscall_trace
 	 mov	%i0, %l5
@@ -1527,13 +1520,12 @@ syscall_is_too_hard:
 
 	.globl	C_LABEL(ret_sys_call)
 C_LABEL(ret_sys_call):
-	ld	[%curptr + TI_TASK], %l6
-	ld	[%l6 + AOFF_task_ptrace], %l6
+	ld	[%curptr + TI_FLAGS], %l6
 	cmp	%o0, -ENOIOCTLCMD
 	ld	[%sp + STACKFRAME_SZ + PT_PSR], %g3
 	set	PSR_C, %g2
 	bgeu	1f
-	 andcc	%l6, 0x02, %l6	
+	 andcc	%l6, _TIF_SYSCALL_TRACE, %g0
 
 	/* System call success, clear Carry condition code. */
 	andn	%g3, %g2, %g3

arch/sparc/kernel/ptrace.c

@@ -521,7 +521,7 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 		addr = 1;
 
 	case PTRACE_CONT: { /* restart after signal. */
-		if ((unsigned long) data > _NSIG) {
+		if (data > _NSIG) {
 			pt_error_return(regs, EIO);
 			goto out_tsk;
 		}
@@ -545,11 +545,10 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 
 		child->exit_code = data;
 #ifdef DEBUG_PTRACE
-		printk("CONT: %s [%d]: set exit_code = %x %x %x\n", child->comm,
-			child->pid, child->exit_code,
+		printk("CONT: %s [%d]: set exit_code = %x %lx %lx\n",
+			child->comm, child->pid, child->exit_code,
 			child->thread.kregs->pc,
 			child->thread.kregs->npc);
-		       
 #endif
 		wake_up_process(child);
 		pt_succ_return(regs, 0);

arch/sparc/kernel/sclow.S

@@ -67,27 +67,6 @@ LABEL(sunosgdtsize):
 	mov	256, %i0
 	CC_AND_RETT
 
-	.globl	LABEL(sunossblock)
-LABEL(sunossblock):
-	LOAD_CURRENT(l4, l5)
-	ld	[%l4 + TI_TASK], %l4
-	set	-65793, %l5
-	and	%i0, %l5, %l5
-	ld	[%l4 + AOFF_task_blocked], %i0
-	or	%i0, %l5, %l5
-	st	%l5, [%l4 + AOFF_task_blocked]
-	CC_AND_RETT
-
-	.globl	LABEL(sunossmask)
-LABEL(sunossmask):
-	LOAD_CURRENT(l4, l5)
-	ld	[%l4 + TI_TASK], %l4
-	set	-65793, %l5
-	and	%i0, %l5, %l5
-	ld	[%l4 + AOFF_task_blocked], %i0
-	st	%l5, [%l4 + AOFF_task_blocked]
-	CC_AND_RETT
-
 	.globl	LABEL(getpagesize)
 LABEL(getpagesize):
 	set	PAGE_SIZE, %i0