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| author | Heiko Carstens | 2013-08-01 10:16:27 +0200 |
|---|---|---|
| committer | Martin Schwidefsky | 2013-08-22 12:20:12 +0200 |
| commit | 6b169ac9b4342ff3a1499bdeb7596aa4f1bc401b (patch) | |
| tree | 3697bebddba3158aefd5481e7009ecd5ae5a1291 /arch/s390/kernel/entry64.S | |
| parent | s390/switch_to: fix save_access_regs() / restore_access_regs() (diff) | |
| download | kernel-qcow2-linux-6b169ac9b4342ff3a1499bdeb7596aa4f1bc401b.tar.gz kernel-qcow2-linux-6b169ac9b4342ff3a1499bdeb7596aa4f1bc401b.tar.xz kernel-qcow2-linux-6b169ac9b4342ff3a1499bdeb7596aa4f1bc401b.zip | |
s390/kprobes: add support for compare and branch instructions
The compare and branch instructions (not relative) all need special
handling when kprobed:
- if a branch was taken, the instruction pointer should be left alone
- if a branch was not taken, the instruction pointer must be adjusted
The compare and branch instructions family was introduced with the general
instruction extension facility (z10).
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry64.S')
0 files changed, 0 insertions, 0 deletions