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authorIngo Molnar <mingo@elte.hu>2008-06-16 11:23:36 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 11:23:36 +0200
commit766d02786ecd22932beeb9ca8bad6d8c5a552ef9 (patch)
treef6f2df0e35bbea914d1f4d12be6d02f128c73575 /arch/blackfin/kernel/traps.c
parent906d882cacecd37ad2fdd03ed2a9b232bcb9507e (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
Merge branch 'linus' into core/rcutip-core-rcu-2008-06-16_09.23_Mon
Diffstat (limited to 'arch/blackfin/kernel/traps.c')
-rw-r--r--arch/blackfin/kernel/traps.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 5b847070dae5..f061f5181623 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -67,7 +67,7 @@ void __init trap_init(void)
CSYNC();
}
-void *saved_icplb_fault_addr, *saved_dcplb_fault_addr;
+unsigned long saved_icplb_fault_addr, saved_dcplb_fault_addr;
int kstack_depth_to_print = 48;
@@ -364,13 +364,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
case VEC_CPLB_MHIT:
info.si_code = ILL_CPLB_MULHIT;
-#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
sig = SIGSEGV;
- printk(KERN_NOTICE "NULL pointer access (probably)\n");
-#else
- sig = SIGILL;
- printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
+ if (saved_dcplb_fault_addr < FIXED_CODE_START)
+ printk(KERN_NOTICE "NULL pointer access\n");
+ else
#endif
+ printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
CHK_DEBUGGER_TRAP();
break;
/* 0x28 - Emulation Watchpoint, handled here */
@@ -419,13 +419,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
/* 0x2D - Instruction CPLB Multiple Hits, handled here */
case VEC_CPLB_I_MHIT:
info.si_code = ILL_CPLB_MULHIT;
-#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
sig = SIGSEGV;
- printk(KERN_NOTICE "Jump to address 0 - 0x0fff\n");
-#else
- sig = SIGILL;
- printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
+ if (saved_icplb_fault_addr < FIXED_CODE_START)
+ printk(KERN_NOTICE "Jump to NULL address\n");
+ else
#endif
+ printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
CHK_DEBUGGER_TRAP();
break;
/* 0x2E - Illegal use of Supervisor Resource, handled here */
@@ -939,8 +939,6 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp)
oops_in_progress = 1;
- printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", saved_dcplb_fault_addr);
- printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", saved_icplb_fault_addr);
dump_bfin_process(fp);
dump_bfin_mem(fp);
show_regs(fp);