修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/openrisc/kernel/traps.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * OpenRISC traps.c
3
4
  *
..
..
@@ -9,15 +10,9 @@
9
10
  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10
11
  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11
12
  *
12
- *      This program is free software; you can redistribute it and/or
13
- *      modify it under the terms of the GNU General Public License
14
- *      as published by the Free Software Foundation; either version
15
- *      2 of the License, or (at your option) any later version.
16
- *
17
13
  *  Here we handle the break vectors not used by the system call
18
14
  *  mechanism, as well as some general stack/register dumping
19
15
  *  things.
20
- *
21
16
  */
22
17
 
23
18
 #include <linux/init.h>
..
..
@@ -35,9 +30,7 @@
35
30
 #include <linux/kallsyms.h>
36
31
 #include <linux/uaccess.h>
37
32
 
38
-#include <asm/segment.h>
39
33
 #include <asm/io.h>
40
-#include <asm/pgtable.h>
41
34
 #include <asm/unwinder.h>
42
35
 #include <asm/sections.h>
43
36
 
..
..
@@ -47,25 +40,20 @@
47
40
 
48
41
 void print_trace(void *data, unsigned long addr, int reliable)
49
42
 {
50
-	pr_emerg("[<%p>] %s%pS\n", (void *) addr, reliable ? "" : "? ",
43
+	const char *loglvl = data;
44
+
45
+	printk("%s[<%p>] %s%pS\n", loglvl, (void *) addr, reliable ? "" : "? ",
51
46
 	       (void *) addr);
52
47
 }
53
48
 
54
49
 /* displays a short stack trace */
55
-void show_stack(struct task_struct *task, unsigned long *esp)
50
+void show_stack(struct task_struct *task, unsigned long *esp, const char *loglvl)
56
51
 {
57
52
 	if (esp == NULL)
58
53
 		esp = (unsigned long *)&esp;
59
54
 
60
-	pr_emerg("Call trace:\n");
61
-	unwind_stack(NULL, esp, print_trace);
62
-}
63
-
64
-void show_trace_task(struct task_struct *tsk)
65
-{
66
-	/*
67
-	 * TODO: SysRq-T trace dump...
68
-	 */
55
+	printk("%sCall trace:\n", loglvl);
56
+	unwind_stack((void *)loglvl, esp, print_trace);
69
57
 }
70
58
 
71
59
 void show_registers(struct pt_regs *regs)
..
..
@@ -109,7 +97,7 @@
109
97
 	if (in_kernel) {
110
98
 
111
99
 		printk("\nStack: ");
112
-		show_stack(NULL, (unsigned long *)esp);
100
+		show_stack(NULL, (unsigned long *)esp, KERN_EMERG);
113
101
 
114
102
 		printk("\nCode: ");
115
103
 		if (regs->pc < PAGE_OFFSET)
..
..
@@ -224,7 +212,7 @@
224
212
 	__asm__ __volatile__("l.nop   1");
225
213
 	do {} while (1);
226
214
 #endif
227
-	do_exit(SIGSEGV);
215
+	make_task_dead(SIGSEGV);
228
216
 }
229
217
 
230
218
 /* This is normally the 'Oops' routine */
..
..
@@ -250,7 +238,7 @@
250
238
 
251
239
 asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)
252
240
 {
253
-	force_sig_fault(SIGTRAP, TRAP_TRACE, (void __user *)address, current);
241
+	force_sig_fault(SIGTRAP, TRAP_TRACE, (void __user *)address);
254
242
 
255
243
 	regs->pc += 4;
256
244
 }
..
..
@@ -259,7 +247,7 @@
259
247
 {
260
248
 	if (user_mode(regs)) {
261
249
 		/* Send a SIGBUS */
262
-		force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)address, current);
250
+		force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)address);
263
251
 	} else {
264
252
 		printk("KERNEL: Unaligned Access 0x%.8lx\n", address);
265
253
 		show_registers(regs);
..
..
@@ -272,7 +260,7 @@
272
260
 {
273
261
 	if (user_mode(regs)) {
274
262
 		/* Send a SIGBUS */
275
-		force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current);
263
+		force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address);
276
264
 	} else {		/* Kernel mode */
277
265
 		printk("KERNEL: Bus error (SIGBUS) 0x%.8lx\n", address);
278
266
 		show_registers(regs);
..
..
@@ -377,7 +365,7 @@
377
365
 
378
366
 	if (get_user(value, lwa_addr)) {
379
367
 		if (user_mode(regs)) {
380
-			force_sig(SIGSEGV, current);
368
+			force_sig(SIGSEGV);
381
369
 			return;
382
370
 		}
383
371
 
..
..
@@ -424,7 +412,7 @@
424
412
 
425
413
 	if (put_user(regs->gpr[rb], vaddr)) {
426
414
 		if (user_mode(regs)) {
427
-			force_sig(SIGSEGV, current);
415
+			force_sig(SIGSEGV);
428
416
 			return;
429
417
 		}
430
418
 
..
..
@@ -467,7 +455,7 @@
467
455
 
468
456
 	if (user_mode(regs)) {
469
457
 		/* Send a SIGILL */
470
-		force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)address, current);
458
+		force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)address);
471
459
 	} else {		/* Kernel mode */
472
460
 		printk("KERNEL: Illegal instruction (SIGILL) 0x%.8lx\n",
473
461
 		       address);