diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 1515b673179..4c6079f2495 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -25,6 +25,7 @@ #include <linux/ptrace.h> #include <linux/kgdb.h> #include <linux/kdebug.h> +#include <linux/kprobes.h> #include <linux/notifier.h> #include <linux/kdb.h> @@ -334,7 +335,7 @@ void show_regs(struct pt_regs *regs) __show_regs((struct pt_regs *)regs); } -void show_registers(const struct pt_regs *regs) +void show_registers(struct pt_regs *regs) { const int field = 2 * sizeof(unsigned long); @@ -783,6 +784,25 @@ asmlinkage void do_bp(struct pt_regs *regs) if (bcode >= (1 << 10)) bcode >>= 10; + /* + * notify the kprobe handlers, if instruction is likely to + * pertain to them. + */ + switch (bcode) { + case BRK_KPROBE_BP: + if (notify_die(DIE_BREAK, "debug", regs, bcode, 0, 0) == NOTIFY_STOP) + return; + else + break; + case BRK_KPROBE_SSTEPBP: + if (notify_die(DIE_SSTEPBP, "single_step", regs, bcode, 0, 0) == NOTIFY_STOP) + return; + else + break; + default: + break; + } + do_trap_or_bp(regs, bcode, "Break"); return; |