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: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index b79886a6cec8a72398720fa839df2e2917aa523e..d2999503fb8a5f1095419a673bd317f4e4690c6c 100644 (file)
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -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);