add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/sh/kernel/entry-common.S
..
..
@@ -1,11 +1,7 @@
1
-/* 
1
+/* SPDX-License-Identifier: GPL-2.0
2
+ *
2
3
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
3
4
  *  Copyright (C) 2003 - 2008  Paul Mundt
4
- *
5
- * This file is subject to the terms and conditions of the GNU General Public
6
- * License.  See the file "COPYING" in the main directory of this archive
7
- * for more details.
8
- *
9
5
  */
10
6
 
11
7
 ! NOTE:
..
..
@@ -45,7 +41,7 @@
45
41
  */
46
42
 #include <asm/dwarf.h>
47
43
 
48
-#if defined(CONFIG_PREEMPT)
44
+#if defined(CONFIG_PREEMPTION)
49
45
 #  define preempt_stop()	cli ; TRACE_IRQS_OFF
50
46
 #else
51
47
 #  define preempt_stop()
..
..
@@ -88,7 +84,7 @@
88
84
 	get_current_thread_info r8, r0
89
85
 	bt	resume_kernel	! Yes, it's from kernel, go back soon
90
86
 
91
-#ifdef CONFIG_PREEMPT
87
+#ifdef CONFIG_PREEMPTION
92
88
 	bra	resume_userspace
93
89
 	 nop
94
90
 ENTRY(resume_kernel)
..
..
@@ -181,34 +177,6 @@
181
177
 	 nop
182
178
 	bra	resume_userspace
183
179
 	 nop
184
-
185
-	.align	2
186
-syscall_trace_entry:
187
-	!                     	Yes it is traced.
188
-	mov     r15, r4
189
-	mov.l	7f, r11		! Call do_syscall_trace_enter which notifies
190
-	jsr	@r11	    	! superior (will chomp R[0-7])
191
-	 nop
192
-	mov.l	r0, @(OFF_R0,r15)	! Save return value
193
-	!			Reload R0-R4 from kernel stack, where the
194
-	!   	    	    	parent may have modified them using
195
-	!   	    	    	ptrace(POKEUSR).  (Note that R0-R2 are
196
-	!   	    	    	reloaded from the kernel stack by syscall_call
197
-	!   	    	    	below, so don't need to be reloaded here.)
198
-	!   	    	    	This allows the parent to rewrite system calls
199
-	!   	    	    	and args on the fly.
200
-	mov.l	@(OFF_R4,r15), r4   ! arg0
201
-	mov.l	@(OFF_R5,r15), r5
202
-	mov.l	@(OFF_R6,r15), r6
203
-	mov.l	@(OFF_R7,r15), r7   ! arg3
204
-	mov.l	@(OFF_R3,r15), r3   ! syscall_nr
205
-	!
206
-	mov.l	6f, r10			! Number of syscalls
207
-	cmp/hs	r10, r3
208
-	bf	syscall_call
209
-	mov	#-ENOSYS, r0
210
-	bra	syscall_exit
211
-	 mov.l	r0, @(OFF_R0,r15)	! Return value
212
180
 
213
181
 __restore_all:
214
182
 	mov	#OFF_SR, r0
..
..
@@ -392,6 +360,36 @@
392
360
 	bf	syscall_exit_work
393
361
 	bra	__restore_all
394
362
 	 nop
363
+
364
+	.align	2
365
+syscall_trace_entry:
366
+	!                     	Yes it is traced.
367
+	mov     r15, r4
368
+	mov.l	7f, r11		! Call do_syscall_trace_enter which notifies
369
+	jsr	@r11	    	! superior (will chomp R[0-7])
370
+	 nop
371
+	cmp/eq	#-1, r0
372
+	bt	syscall_exit
373
+	!			Reload R0-R4 from kernel stack, where the
374
+	!   	    	    	parent may have modified them using
375
+	!   	    	    	ptrace(POKEUSR).  (Note that R0-R2 are
376
+	!   	    	    	reloaded from the kernel stack by syscall_call
377
+	!   	    	    	below, so don't need to be reloaded here.)
378
+	!   	    	    	This allows the parent to rewrite system calls
379
+	!   	    	    	and args on the fly.
380
+	mov.l	@(OFF_R4,r15), r4   ! arg0
381
+	mov.l	@(OFF_R5,r15), r5
382
+	mov.l	@(OFF_R6,r15), r6
383
+	mov.l	@(OFF_R7,r15), r7   ! arg3
384
+	mov.l	@(OFF_R3,r15), r3   ! syscall_nr
385
+	!
386
+	mov.l	6f, r10			! Number of syscalls
387
+	cmp/hs	r10, r3
388
+	bf	syscall_call
389
+	mov	#-ENOSYS, r0
390
+	bra	syscall_exit
391
+	 mov.l	r0, @(OFF_R0,r15)	! Return value
392
+
395
393
 	.align	2
396
394
 #if !defined(CONFIG_CPU_SH2)
397
395
 1:	.long	TRA