diff options
Diffstat (limited to 'arch/microblaze/kernel/exceptions.c')
| -rw-r--r-- | arch/microblaze/kernel/exceptions.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c index 02cbdfe5aa8..e0c6f8c2bd9 100644 --- a/arch/microblaze/kernel/exceptions.c +++ b/arch/microblaze/kernel/exceptions.c @@ -48,6 +48,12 @@ void die(const char *str, struct pt_regs *fp, long err) do_exit(err); } +/* for user application debugging */ +void sw_exception(struct pt_regs *regs) +{ + _exception(SIGTRAP, regs, TRAP_BRKPT, regs->r16); +} + void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) { siginfo_t info; @@ -143,7 +149,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type, #ifdef CONFIG_MMU case MICROBLAZE_PRIVILEGED_EXCEPTION: pr_debug(KERN_WARNING "Privileged exception\n"); - /* "brk r0,r0" - used as debug breakpoint */ + /* "brk r0,r0" - used as debug breakpoint - old toolchain */ if (get_user(code, (unsigned long *)regs->pc) == 0 && code == 0x980c0000) { _exception(SIGTRAP, regs, TRAP_BRKPT, addr); |