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csky: optimize kernel panic print.

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Use STACKTRACE to optimize panic print more pretty and align registers
printing.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
This commit is contained in:
Guo Ren
2018-12-09 17:07:20 +08:00
parent 0ea2dc7cd6
commit 8f4f1639a1
3 changed files with 41 additions and 56 deletions
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34
arch/csky/kernel/ptrace.c
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@@ -241,6 +241,7 @@ asmlinkage void syscall_trace(int why, struct pt_regs *regs)
regs->regs[SYSTRACE_SAVENUM] = saved_why;
}
extern void show_stack(struct task_struct *task, unsigned long *stack);
void show_regs(struct pt_regs *fp)
{
unsigned long *sp;
@@ -263,35 +264,37 @@ void show_regs(struct pt_regs *fp)
(int) (((unsigned long) current) + 2 * PAGE_SIZE));
}
pr_info("PC: 0x%08lx\n", (long)fp->pc);
pr_info("PC: 0x%08lx (%pS)\n", (long)fp->pc, (void *)fp->pc);
pr_info("LR: 0x%08lx (%pS)\n", (long)fp->lr, (void *)fp->lr);
pr_info("SP: 0x%08lx\n", (long)fp);
pr_info("orig_a0: 0x%08lx\n", fp->orig_a0);
pr_info("PSR: 0x%08lx\n", (long)fp->sr);
pr_info("a0: 0x%08lx a1: 0x%08lx a2: 0x%08lx a3: 0x%08lx\n",
fp->a0, fp->a1, fp->a2, fp->a3);
pr_info(" a0: 0x%08lx a1: 0x%08lx a2: 0x%08lx a3: 0x%08lx\n",
fp->a0, fp->a1, fp->a2, fp->a3);
#if defined(__CSKYABIV2__)
pr_info("r4: 0x%08lx r5: 0x%08lx r6: 0x%08lx r7: 0x%08lx\n",
pr_info(" r4: 0x%08lx r5: 0x%08lx r6: 0x%08lx r7: 0x%08lx\n",
fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
pr_info("r8: 0x%08lx r9: 0x%08lx r10: 0x%08lx r11: 0x%08lx\n",
pr_info(" r8: 0x%08lx r9: 0x%08lx r10: 0x%08lx r11: 0x%08lx\n",
fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
pr_info("r12 0x%08lx r13: 0x%08lx r15: 0x%08lx\n",
pr_info("r12: 0x%08lx r13: 0x%08lx r15: 0x%08lx\n",
fp->regs[8], fp->regs[9], fp->lr);
pr_info("r16:0x%08lx r17: 0x%08lx r18: 0x%08lx r19: 0x%08lx\n",
pr_info("r16: 0x%08lx r17: 0x%08lx r18: 0x%08lx r19: 0x%08lx\n",
fp->exregs[0], fp->exregs[1], fp->exregs[2], fp->exregs[3]);
pr_info("r20 0x%08lx r21: 0x%08lx r22: 0x%08lx r23: 0x%08lx\n",
pr_info("r20: 0x%08lx r21: 0x%08lx r22: 0x%08lx r23: 0x%08lx\n",
fp->exregs[4], fp->exregs[5], fp->exregs[6], fp->exregs[7]);
pr_info("r24 0x%08lx r25: 0x%08lx r26: 0x%08lx r27: 0x%08lx\n",
pr_info("r24: 0x%08lx r25: 0x%08lx r26: 0x%08lx r27: 0x%08lx\n",
fp->exregs[8], fp->exregs[9], fp->exregs[10], fp->exregs[11]);
pr_info("r28 0x%08lx r29: 0x%08lx r30: 0x%08lx tls: 0x%08lx\n",
pr_info("r28: 0x%08lx r29: 0x%08lx r30: 0x%08lx tls: 0x%08lx\n",
fp->exregs[12], fp->exregs[13], fp->exregs[14], fp->tls);
pr_info("hi 0x%08lx lo: 0x%08lx\n",
pr_info(" hi: 0x%08lx lo: 0x%08lx\n",
fp->rhi, fp->rlo);
#else
pr_info("r6: 0x%08lx r7: 0x%08lx r8: 0x%08lx r9: 0x%08lx\n",
pr_info(" r6: 0x%08lx r7: 0x%08lx r8: 0x%08lx r9: 0x%08lx\n",
fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
pr_info("r10: 0x%08lx r11: 0x%08lx r12: 0x%08lx r13: 0x%08lx\n",
pr_info("r10: 0x%08lx r11: 0x%08lx r12: 0x%08lx r13: 0x%08lx\n",
fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
pr_info("r14 0x%08lx r1: 0x%08lx r15: 0x%08lx\n",
pr_info("r14: 0x%08lx r1: 0x%08lx r15: 0x%08lx\n",
fp->regs[8], fp->regs[9], fp->lr);
#endif
@@ -313,4 +316,7 @@ void show_regs(struct pt_regs *fp)
pr_cont("%08x ", (int) *sp++);
}
pr_cont("\n");
show_stack(NULL, (unsigned long *)fp->regs[4]);
return;
}