diff options
Diffstat (limited to 'arch/tile/kernel/traps.c')
| -rw-r--r-- | arch/tile/kernel/traps.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c index 73cff814ac57..5b19a23c8908 100644 --- a/arch/tile/kernel/traps.c +++ b/arch/tile/kernel/traps.c @@ -195,6 +195,25 @@ static int special_ill(bundle_bits bundle, int *sigp, int *codep) return 1; } +static const char *const int_name[] = { + [INT_MEM_ERROR] = "Memory error", + [INT_ILL] = "Illegal instruction", + [INT_GPV] = "General protection violation", + [INT_UDN_ACCESS] = "UDN access", + [INT_IDN_ACCESS] = "IDN access", +#if CHIP_HAS_SN() + [INT_SN_ACCESS] = "SN access", +#endif + [INT_SWINT_3] = "Software interrupt 3", + [INT_SWINT_2] = "Software interrupt 2", + [INT_SWINT_0] = "Software interrupt 0", + [INT_UNALIGN_DATA] = "Unaligned data", + [INT_DOUBLE_FAULT] = "Double fault", +#ifdef __tilegx__ + [INT_ILL_TRANS] = "Illegal virtual address", +#endif +}; + void __kprobes do_trap(struct pt_regs *regs, int fault_num, unsigned long reason) { @@ -211,10 +230,17 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, * current process and hope for the best. */ if (!user_mode(regs)) { + const char *name; if (fixup_exception(regs)) /* only UNALIGN_DATA in practice */ return; - pr_alert("Kernel took bad trap %d at PC %#lx\n", - fault_num, regs->pc); + if (fault_num >= 0 && + fault_num < sizeof(int_name)/sizeof(int_name[0]) && + int_name[fault_num] != NULL) + name = int_name[fault_num]; + else + name = "Unknown interrupt"; + pr_alert("Kernel took bad trap %d (%s) at PC %#lx\n", + fault_num, name, regs->pc); if (fault_num == INT_GPV) pr_alert("GPV_REASON is %#lx\n", reason); show_regs(regs); |