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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-03-13 13:13:36 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 11:49:44 +0100 |
| commit | 3c1a3bcea945f9d59ab1fe3d319c67c0ff56100f (patch) | |
| tree | 9e8e7c58195b04850ccd5e87e48c5930b137ebb3 /scripts/gdb/linux/modules.py | |
| parent | s390/maccess: remove potentially broken probe_kernel_write() (diff) | |
| download | wireguard-linux-3c1a3bcea945f9d59ab1fe3d319c67c0ff56100f.tar.xz wireguard-linux-3c1a3bcea945f9d59ab1fe3d319c67c0ff56100f.zip | |
s390/maccess: improve s390_kernel_write()
Use the sturg instruction instead of the stura instruction. This allows to
modify up to eight bytes in a row instead of only four.
For function tracer enabling and disabling this reduces the time needed to
modify the text sections by 50%, since for each mcount call site six bytes
need to be changed.
Also remove the EXTABLE entries, since calls to this function are not
supposed to fail.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'scripts/gdb/linux/modules.py')
0 files changed, 0 insertions, 0 deletions