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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-05-17 12:00:05 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-05-17 12:00:15 +0400 |
| commit | 86f2552bbd0e17b19bb5e9881042533eaea553c7 (patch) | |
| tree | f520909d953f5d8c7db3dd4c4f2582bd7f7473aa /arch/s390/include/asm/thread_info.h | |
| parent | cd3b70f5d4d82f85d1e1d6e822f38ae098cf7c72 (diff) | |
| download | linux-86f2552bbd0e17b19bb5e9881042533eaea553c7.tar.xz | |
[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/include/asm/thread_info.h')
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 34f0873d6525..be3d3f91d86c 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -50,6 +50,7 @@ struct thread_info { struct restart_block restart_block; __u64 user_timer; __u64 system_timer; + unsigned long last_break; /* last breaking-event-address. */ }; /* |