From 86f2552bbd0e17b19bb5e9881042533eaea553c7 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 17 May 2010 10:00:05 +0200 Subject: [S390] add breaking event address for user space Copy the last breaking event address from the lowcore to a new field in the thread_struct on each system entry. Add a new ptrace request PTRACE_GET_LAST_BREAK and a new utrace regset REGSET_LAST_BREAK to query the last breaking event. This is useful for debugging wild branches in user space code. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/asm-offsets.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/s390/kernel/asm-offsets.c') diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 44a4336d9a33..d9b490a2716e 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -39,6 +39,7 @@ int main(void) DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count)); DEFINE(__TI_user_timer, offsetof(struct thread_info, user_timer)); DEFINE(__TI_system_timer, offsetof(struct thread_info, system_timer)); + DEFINE(__TI_last_break, offsetof(struct thread_info, last_break)); BLANK(); DEFINE(__PT_ARGS, offsetof(struct pt_regs, args)); DEFINE(__PT_PSW, offsetof(struct pt_regs, psw)); -- cgit v1.2.3