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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-05-17 10:00:05 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-05-17 10:00:15 +0200 |
| commit | 86f2552bbd0e17b19bb5e9881042533eaea553c7 (patch) | |
| tree | f520909d953f5d8c7db3dd4c4f2582bd7f7473aa /arch/s390/kernel/asm-offsets.c | |
| parent | [S390] virtualization aware cpu measurement (diff) | |
| download | linux-86f2552bbd0e17b19bb5e9881042533eaea553c7.tar.xz linux-86f2552bbd0e17b19bb5e9881042533eaea553c7.zip | |
[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 <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/asm-offsets.c')
| -rw-r--r-- | arch/s390/kernel/asm-offsets.c | 1 |
1 files changed, 1 insertions, 0 deletions
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)); |