diff options
Diffstat (limited to 'arch/avr32/kernel/kprobes.c')
| -rw-r--r-- | arch/avr32/kernel/kprobes.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/avr32/kernel/kprobes.c b/arch/avr32/kernel/kprobes.c index 20b1c9d8f945..f820e9f25520 100644 --- a/arch/avr32/kernel/kprobes.c +++ b/arch/avr32/kernel/kprobes.c @@ -48,6 +48,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) void __kprobes arch_arm_kprobe(struct kprobe *p) { pr_debug("arming kprobe at %p\n", p->addr); + ocd_enable(NULL); *p->addr = BREAKPOINT_INSTRUCTION; flush_icache_range((unsigned long)p->addr, (unsigned long)p->addr + sizeof(kprobe_opcode_t)); @@ -56,6 +57,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p) void __kprobes arch_disarm_kprobe(struct kprobe *p) { pr_debug("disarming kprobe at %p\n", p->addr); + ocd_disable(NULL); *p->addr = p->opcode; flush_icache_range((unsigned long)p->addr, (unsigned long)p->addr + sizeof(kprobe_opcode_t)); @@ -70,9 +72,9 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) BUG_ON(!(sysreg_read(SR) & SYSREG_BIT(SR_D))); - dc = __mfdr(DBGREG_DC); - dc |= DC_SS; - __mtdr(DBGREG_DC, dc); + dc = ocd_read(DC); + dc |= 1 << OCD_DC_SS_BIT; + ocd_write(DC, dc); /* * We must run the instruction from its original location @@ -91,9 +93,9 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) pr_debug("resuming execution at PC=%08lx\n", regs->pc); - dc = __mfdr(DBGREG_DC); - dc &= ~DC_SS; - __mtdr(DBGREG_DC, dc); + dc = ocd_read(DC); + dc &= ~(1 << OCD_DC_SS_BIT); + ocd_write(DC, dc); *p->addr = BREAKPOINT_INSTRUCTION; flush_icache_range((unsigned long)p->addr, @@ -260,9 +262,6 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) int __init arch_init_kprobes(void) { - printk("KPROBES: Enabling monitor mode (MM|DBE)...\n"); - __mtdr(DBGREG_DC, DC_MM | DC_DBE); - /* TODO: Register kretprobe trampoline */ return 0; } |