From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/arch/hexagon/kernel/traps.c | 54 +++++++++++++++++++-----------------------------------
1 files changed, 19 insertions(+), 35 deletions(-)
diff --git a/kernel/arch/hexagon/kernel/traps.c b/kernel/arch/hexagon/kernel/traps.c
index 91ee048..b334e80 100644
--- a/kernel/arch/hexagon/kernel/traps.c
+++ b/kernel/arch/hexagon/kernel/traps.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Kernel traps/events for Hexagon processor
*
* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
*/
#include <linux/init.h>
@@ -92,7 +79,7 @@
}
static void do_show_stack(struct task_struct *task, unsigned long *fp,
- unsigned long ip)
+ unsigned long ip, const char *loglvl)
{
int kstack_depth_to_print = 24;
unsigned long offset, size;
@@ -106,9 +93,8 @@
if (task == NULL)
task = current;
- printk(KERN_INFO "CPU#%d, %s/%d, Call Trace:\n",
- raw_smp_processor_id(), task->comm,
- task_pid_nr(task));
+ printk("%sCPU#%d, %s/%d, Call Trace:\n", loglvl, raw_smp_processor_id(),
+ task->comm, task_pid_nr(task));
if (fp == NULL) {
if (task == current) {
@@ -121,7 +107,7 @@
}
if ((((unsigned long) fp) & 0x3) || ((unsigned long) fp < 0x1000)) {
- printk(KERN_INFO "-- Corrupt frame pointer %p\n", fp);
+ printk("%s-- Corrupt frame pointer %p\n", loglvl, fp);
return;
}
@@ -138,8 +124,7 @@
name = kallsyms_lookup(ip, &size, &offset, &modname, tmpstr);
- printk(KERN_INFO "[%p] 0x%lx: %s + 0x%lx", fp, ip, name,
- offset);
+ printk("%s[%p] 0x%lx: %s + 0x%lx", loglvl, fp, ip, name, offset);
if (((unsigned long) fp < low) || (high < (unsigned long) fp))
printk(KERN_CONT " (FP out of bounds!)");
if (modname)
@@ -149,8 +134,7 @@
newfp = (unsigned long *) *fp;
if (((unsigned long) newfp) & 0x3) {
- printk(KERN_INFO "-- Corrupt frame pointer %p\n",
- newfp);
+ printk("%s-- Corrupt frame pointer %p\n", loglvl, newfp);
break;
}
@@ -160,7 +144,7 @@
+ 8);
if (regs->syscall_nr != -1) {
- printk(KERN_INFO "-- trap0 -- syscall_nr: %ld",
+ printk("%s-- trap0 -- syscall_nr: %ld", loglvl,
regs->syscall_nr);
printk(KERN_CONT " psp: %lx elr: %lx\n",
pt_psp(regs), pt_elr(regs));
@@ -168,7 +152,7 @@
} else {
/* really want to see more ... */
kstack_depth_to_print += 6;
- printk(KERN_INFO "-- %s (0x%lx) badva: %lx\n",
+ printk("%s-- %s (0x%lx) badva: %lx\n", loglvl,
ex_name(pt_cause(regs)), pt_cause(regs),
pt_badva(regs));
}
@@ -191,10 +175,10 @@
}
}
-void show_stack(struct task_struct *task, unsigned long *fp)
+void show_stack(struct task_struct *task, unsigned long *fp, const char *loglvl)
{
/* Saved link reg is one word above FP */
- do_show_stack(task, fp, 0);
+ do_show_stack(task, fp, 0, loglvl);
}
int die(const char *str, struct pt_regs *regs, long err)
@@ -220,7 +204,7 @@
print_modules();
show_regs(regs);
- do_show_stack(current, ®s->r30, pt_elr(regs));
+ do_show_stack(current, ®s->r30, pt_elr(regs), KERN_EMERG);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
@@ -234,7 +218,7 @@
panic("Fatal exception");
oops_exit();
- do_exit(err);
+ make_task_dead(err);
return 0;
}
@@ -252,7 +236,7 @@
static void misaligned_instruction(struct pt_regs *regs)
{
die_if_kernel("Misaligned Instruction", regs, 0);
- force_sig(SIGBUS, current);
+ force_sig(SIGBUS);
}
/*
@@ -263,19 +247,19 @@
static void misaligned_data_load(struct pt_regs *regs)
{
die_if_kernel("Misaligned Data Load", regs, 0);
- force_sig(SIGBUS, current);
+ force_sig(SIGBUS);
}
static void misaligned_data_store(struct pt_regs *regs)
{
die_if_kernel("Misaligned Data Store", regs, 0);
- force_sig(SIGBUS, current);
+ force_sig(SIGBUS);
}
static void illegal_instruction(struct pt_regs *regs)
{
die_if_kernel("Illegal Instruction", regs, 0);
- force_sig(SIGILL, current);
+ force_sig(SIGILL);
}
/*
@@ -285,7 +269,7 @@
static void precise_bus_error(struct pt_regs *regs)
{
die_if_kernel("Precise Bus Error", regs, 0);
- force_sig(SIGBUS, current);
+ force_sig(SIGBUS);
}
/*
@@ -420,7 +404,7 @@
* may want to use a different trap0 flavor.
*/
force_sig_fault(SIGTRAP, TRAP_BRKPT,
- (void __user *) pt_elr(regs), current);
+ (void __user *) pt_elr(regs));
} else {
#ifdef CONFIG_KGDB
kgdb_handle_exception(pt_cause(regs), SIGTRAP,
--
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