Commit 204c7ece authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: show_regs: reduce lines of output 



Before
------

| CPU: 1 PID: 29061 Comm: tst-dynarray-at Not tainted 5.6.0-rc1-00002-g941fcc018ca6-dirty #12
|
| [ECR   ]: 0x00090000 =>
| [EFA   ]: 0x00000000
| [ERET  ]: 0x2004aa6c
|     @off 0x2aa6c in [/lib/libc-2.31.9000.so]
      VMA: 0x20020000 to 0x20122000
| [STAT32]: 0x80080a82 [IE U     ]
| BTA: 0x2004aa18 SP: 0x5ffff8a8  FP: 0x5ffff8fc
| LPS: 0x2008788e LPE: 0x20087896 LPC: 0x00000000
| r00: 0x00000000 r01: 0x5ffff8a8 r02: 0x00000000
| r03: 0x00000008 r04: 0xffffffff r05: 0x00000000
| r06: 0x00000000 r07: 0x00000000 r08: 0x00000087
| r09: 0x00000000 r10: 0x2010691c r11: 0x00000020
| r12: 0x2003b214 r13: 0x5ffff8a8 r14: 0x20126e68
| r15: 0x2001f26c r16: 0x2012a000 r17: 0x00000001
| r18: 0x5ffff8fc r19: 0x00000000 r20: 0x5ffff948
| r21: 0x00000001 r22: 0xffffffff r23: 0x5fffff8c
| r24: 0x4008c2a8 r25: 0x2001f6e0

After
-----

| CPU: 1 PID: 29061 Comm: tst-dynarray-at Not tainted 5.6.0-rc1-00002-g941fcc018ca6-dirty #12
|   @off 0x2aa6c in [/lib/libc-2.31.9000.so]  VMA: 0x20020000 to 0x20122000
| ECR: 0x00090000 EFA: 0x00000000 ERET: 0x2004aa6c
| STAT32: 0x80080a82 [IE U     ]  BTA: 0x2004aa18
| BLK: 0x2003b214  SP: 0x5ffff8a8  FP: 0x5ffff8fc
| LPS: 0x2008788e LPE: 0x20087896 LPC: 0x00000000
| r00: 0x00000000 r01: 0x5ffff8a8 r02: 0x00000000
| r03: 0x00000008 r04: 0xffffffff r05: 0x00000000
| r06: 0x00000000 r07: 0x00000000 r08: 0x00000087
| r09: 0x00000000 r10: 0x2010691c r11: 0x00000020
| r12: 0x2003b214 r13: 0x5ffff8a8 r14: 0x20126e68
| r15: 0x2001f26c r16: 0x2012a000 r17: 0x00000001
| r18: 0x5ffff8fc r19: 0x00000000 r20: 0x5ffff948
| r21: 0x00000001 r22: 0xffffffff r23: 0x5fffff8c
| r24: 0x4008c2a8 r25: 0x2001f6e0 BTA: 0x2004aa18

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 3b00b042

arch/arc/kernel/troubleshoot.c

+12 −15
Original line number Diff line number Diff line
@@ -104,8 +104,7 @@ static void show_faulting_vma(unsigned long address) 
			if (IS_ERR(nm))

				nm = "?";

		}

		pr_info("    @off 0x%lx in [%s]\n"

			"    VMA: 0x%08lx to 0x%08lx\n",

		pr_info("  @off 0x%lx in [%s]  VMA: 0x%08lx to 0x%08lx\n",

			vma->vm_start < TASK_UNMAPPED_BASE ?

				address : address - vma->vm_start,

			nm, vma->vm_start, vma->vm_end);
@@ -120,8 +119,6 @@ static void show_ecr_verbose(struct pt_regs *regs) 
	unsigned int vec, cause_code;

	unsigned long address;



	pr_info("\n[ECR   ]: 0x%08lx => ", regs->event);



	/* For Data fault, this is data address not instruction addr */

	address = current->thread.fault_address;
@@ -130,10 +127,10 @@ static void show_ecr_verbose(struct pt_regs *regs) 


	/* For DTLB Miss or ProtV, display the memory involved too */

	if (vec == ECR_V_DTLB_MISS) {

		pr_cont("Invalid %s @ 0x%08lx by insn @ 0x%08lx\n",

		pr_cont("Invalid %s @ 0x%08lx by insn @ %pS\n",

		       (cause_code == 0x01) ? "Read" :

		       ((cause_code == 0x02) ? "Write" : "EX"),

		       address, regs->ret);

		       address, (void *)regs->ret);

	} else if (vec == ECR_V_ITLB_MISS) {

		pr_cont("Insn could not be fetched\n");

	} else if (vec == ECR_V_MACH_CHK) {
@@ -191,31 +188,31 @@ void show_regs(struct pt_regs *regs) 


	show_ecr_verbose(regs);



	pr_info("[EFA   ]: 0x%08lx\n[BLINK ]: %pS\n[ERET  ]: %pS\n",

		current->thread.fault_address,

		(void *)regs->blink, (void *)regs->ret);



	if (user_mode(regs))

		show_faulting_vma(regs->ret); /* faulting code, not data */



	pr_info("[STAT32]: 0x%08lx", regs->status32);

	pr_info("ECR: 0x%08lx EFA: 0x%08lx ERET: 0x%08lx\n",

		regs->event, current->thread.fault_address, regs->ret);



	pr_info("STAT32: 0x%08lx", regs->status32);



#define STS_BIT(r, bit)	r->status32 & STATUS_##bit##_MASK ? #bit" " : ""



#ifdef CONFIG_ISA_ARCOMPACT

	pr_cont(" : %2s%2s%2s%2s%2s%2s%2s\n",

	pr_cont(" [%2s%2s%2s%2s%2s%2s%2s]",

			(regs->status32 & STATUS_U_MASK) ? "U " : "K ",

			STS_BIT(regs, DE), STS_BIT(regs, AE),

			STS_BIT(regs, A2), STS_BIT(regs, A1),

			STS_BIT(regs, E2), STS_BIT(regs, E1));

#else

	pr_cont(" : %2s%2s%2s%2s\n",

	pr_cont(" [%2s%2s%2s%2s]",

			STS_BIT(regs, IE),

			(regs->status32 & STATUS_U_MASK) ? "U " : "K ",

			STS_BIT(regs, DE), STS_BIT(regs, AE));

#endif

	pr_info("BTA: 0x%08lx\t SP: 0x%08lx\t FP: 0x%08lx\n",

		regs->bta, regs->sp, regs->fp);

	pr_cont("  BTA: 0x%08lx\n", regs->bta);

	pr_info("BLK: %pS\n SP: 0x%08lx  FP: 0x%08lx\n",

		(void *)regs->blink, regs->sp, regs->fp);

	pr_info("LPS: 0x%08lx\tLPE: 0x%08lx\tLPC: 0x%08lx\n",

	       regs->lp_start, regs->lp_end, regs->lp_count);

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