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Diffstat (limited to 'arch/blackfin/kernel/traps.c')
-rw-r--r--arch/blackfin/kernel/traps.c141
1 files changed, 86 insertions, 55 deletions
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 5ab87b0b92d..aa660f32d8c 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -148,8 +148,15 @@ asmlinkage void trap_c(struct pt_regs *fp)
unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE;
#ifdef CONFIG_KGDB
-# define CHK_DEBUGGER_TRAP() do { CHK_DEBUGGER(trapnr, sig, info.si_code, fp,); } while (0)
-# define CHK_DEBUGGER_TRAP_MAYBE() do { if (kgdb_connected) CHK_DEBUGGER_TRAP(); } while (0)
+# define CHK_DEBUGGER_TRAP() \
+ do { \
+ CHK_DEBUGGER(trapnr, sig, info.si_code, fp); \
+ } while (0)
+# define CHK_DEBUGGER_TRAP_MAYBE() \
+ do { \
+ if (kgdb_connected) \
+ CHK_DEBUGGER_TRAP(); \
+ } while (0)
#else
# define CHK_DEBUGGER_TRAP() do { } while (0)
# define CHK_DEBUGGER_TRAP_MAYBE() do { } while (0)
@@ -297,7 +304,8 @@ asmlinkage void trap_c(struct pt_regs *fp)
info.si_code = ILL_CPLB_MULHIT;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
sig = SIGSEGV;
- printk(KERN_EMERG "\n\nNULL pointer access (probably)\n");
+ printk(KERN_EMERG "\n"
+ KERN_EMERG "NULL pointer access (probably)\n");
#else
sig = SIGILL;
printk(KERN_EMERG EXC_0x27);
@@ -418,7 +426,9 @@ asmlinkage void trap_c(struct pt_regs *fp)
if (current->mm) {
fp->pc = current->mm->start_code;
} else {
- printk(KERN_EMERG "I can't return to memory that doesn't exist - bad things happen\n");
+ printk(KERN_EMERG
+ "I can't return to memory that doesn't exist"
+ " - bad things happen\n");
panic("Help - I've fallen and can't get up\n");
}
}
@@ -522,15 +532,19 @@ EXPORT_SYMBOL(dump_stack);
void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
{
if (current->pid) {
- printk("\nCURRENT PROCESS:\n\n");
- printk("COMM=%s PID=%d\n", current->comm, current->pid);
+ printk(KERN_EMERG "\n" KERN_EMERG "CURRENT PROCESS:\n"
+ KERN_EMERG "\n");
+ printk(KERN_EMERG "COMM=%s PID=%d\n",
+ current->comm, current->pid);
} else {
printk
- ("\nNo Valid pid - Either things are really messed up, or you are in the kernel\n");
+ (KERN_EMERG "\n" KERN_EMERG
+ "No Valid pid - Either things are really messed up,"
+ " or you are in the kernel\n");
}
if (current->mm) {
- printk("TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n"
+ printk(KERN_EMERG "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n"
"BSS = 0x%p-0x%p USER-STACK = 0x%p\n\n",
(void*)current->mm->start_code,
(void*)current->mm->end_code,
@@ -541,7 +555,7 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
(void*)current->mm->start_stack);
}
- printk("return address: 0x%p; contents of [PC-16...PC+8]:\n", retaddr);
+ printk(KERN_EMERG "return address: [0x%p]; contents of:", retaddr);
if (retaddr != 0 && retaddr <= (void*)physical_mem_end
#if L1_CODE_LENGTH != 0
/* FIXME: Copy the code out of L1 Instruction SRAM through dma
@@ -550,10 +564,15 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
&& retaddr < (void*)(L1_CODE_START + L1_CODE_LENGTH))
#endif
) {
- int i = 0;
+ int i = ((unsigned int)retaddr & 0xFFFFFFF0) - 32;
unsigned short x = 0;
- for (i = -16; i < 8; i++) {
- if (get_user(x, (unsigned short *)retaddr + i))
+ for (; i < ((unsigned int)retaddr & 0xFFFFFFF0 ) + 32 ;
+ i += 2) {
+ if ( !(i & 0xF) )
+ printk(KERN_EMERG "\n" KERN_EMERG
+ "0x%08x: ", i);
+
+ if (get_user(x, (unsigned short *)i))
break;
#ifndef CONFIG_DEBUG_HWERR
/* If one of the last few instructions was a STI
@@ -561,53 +580,65 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr)
* and we just noticed
*/
if (x >= 0x0040 && x <= 0x0047 && i <= 0)
- panic("\n\nWARNING : You should reconfigure the kernel to turn on\n"
- " 'Hardware error interrupt debugging'\n"
- " The rest of this error is meanless\n");
+ panic("\n\nWARNING : You should reconfigure"
+ " the kernel to turn on\n"
+ " 'Hardware error interrupt"
+ " debugging'\n"
+ " The rest of this error"
+ " is meanless\n");
#endif
-
- if (i == -8)
- printk("\n");
- if (i == 0)
- printk("X\n");
- printk("%04x ", x);
+ if ( i == (unsigned int)retaddr )
+ printk("[%04x]", x);
+ else
+ printk(" %04x ", x);
}
+ printk("\n" KERN_EMERG "\n");
} else
- printk("Cannot look at the [PC] for it is in unreadable L1 SRAM - sorry\n");
-
- printk("\n\n");
-
- printk("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n",
- fp->rete, fp->retn, fp->retx, fp->rets);
- printk("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg);
- printk("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp);
- printk("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n",
- fp->r0, fp->r1, fp->r2, fp->r3);
- printk("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n",
- fp->r4, fp->r5, fp->r6, fp->r7);
- printk("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n",
- fp->p0, fp->p1, fp->p2, fp->p3);
- printk("P4: %08lx P5: %08lx FP: %08lx\n", fp->p4, fp->p5, fp->fp);
- printk("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
- fp->a0w, fp->a0x, fp->a1w, fp->a1x);
-
- printk("LB0: %08lx LT0: %08lx LC0: %08lx\n", fp->lb0, fp->lt0,
- fp->lc0);
- printk("LB1: %08lx LT1: %08lx LC1: %08lx\n", fp->lb1, fp->lt1,
- fp->lc1);
- printk("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n", fp->b0, fp->l0,
- fp->m0, fp->i0);
- printk("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n", fp->b1, fp->l1,
- fp->m1, fp->i1);
- printk("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n", fp->b2, fp->l2,
- fp->m2, fp->i2);
- printk("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n", fp->b3, fp->l3,
- fp->m3, fp->i3);
-
- printk("\nUSP: %08lx ASTAT: %08lx\n", rdusp(), fp->astat);
+ printk(KERN_EMERG
+ "Cannot look at the [PC] for it is"
+ "in unreadable L1 SRAM - sorry\n");
+
+
+ printk(KERN_EMERG
+ "RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n",
+ fp->rete, fp->retn, fp->retx, fp->rets);
+ printk(KERN_EMERG "IPEND: %04lx SYSCFG: %04lx\n",
+ fp->ipend, fp->syscfg);
+ printk(KERN_EMERG "SEQSTAT: %08lx SP: %08lx\n",
+ (long)fp->seqstat, (long)fp);
+ printk(KERN_EMERG "R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n",
+ fp->r0, fp->r1, fp->r2, fp->r3);
+ printk(KERN_EMERG "R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n",
+ fp->r4, fp->r5, fp->r6, fp->r7);
+ printk(KERN_EMERG "P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n",
+ fp->p0, fp->p1, fp->p2, fp->p3);
+ printk(KERN_EMERG
+ "P4: %08lx P5: %08lx FP: %08lx\n",
+ fp->p4, fp->p5, fp->fp);
+ printk(KERN_EMERG
+ "A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
+ fp->a0w, fp->a0x, fp->a1w, fp->a1x);
+
+ printk(KERN_EMERG "LB0: %08lx LT0: %08lx LC0: %08lx\n",
+ fp->lb0, fp->lt0, fp->lc0);
+ printk(KERN_EMERG "LB1: %08lx LT1: %08lx LC1: %08lx\n",
+ fp->lb1, fp->lt1, fp->lc1);
+ printk(KERN_EMERG "B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n",
+ fp->b0, fp->l0, fp->m0, fp->i0);
+ printk(KERN_EMERG "B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n",
+ fp->b1, fp->l1, fp->m1, fp->i1);
+ printk(KERN_EMERG "B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n",
+ fp->b2, fp->l2, fp->m2, fp->i2);
+ printk(KERN_EMERG "B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n",
+ fp->b3, fp->l3, fp->m3, fp->i3);
+
+ printk(KERN_EMERG "\n" KERN_EMERG "USP: %08lx ASTAT: %08lx\n",
+ rdusp(), fp->astat);
if ((long)fp->seqstat & SEQSTAT_EXCAUSE) {
- printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void*)bfin_read_DCPLB_FAULT_ADDR());
- printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void*)bfin_read_ICPLB_FAULT_ADDR());
+ printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n",
+ (void *)bfin_read_DCPLB_FAULT_ADDR());
+ printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n",
+ (void *)bfin_read_ICPLB_FAULT_ADDR());
}
printk("\n\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 04:11:31 +0000