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3 Commits

Author SHA1 Message Date
Helge Deller 9b046d0245 parisc: Avoid using hardware single-step in kprobes 
This patch changes the kprobe and kretprobe feature to use another
break instruction instead of relying on the hardware single-step
feature.
That way those kprobes now work in qemu as well, because in qemu we
don't emulate yet single-stepping.

Signed-off-by: Helge Deller <deller@gmx.de>
 2022-03-18 09:10:14 +01:00
Sven Schnelle f5e03d3a04 parisc: add kprobe_fault_handler() 
Add kprobe_fault_handler() to fix compilation for PA-RISC.
On PA-RISC we actually don't need that function as the recovery counter
is restored after interrupt. See the PA-RISC 2.0 Architecture Manual,
pg. 4-8, Figure 4-4: "Interruption Processing".

Fixes: b98cca444d ("mm, kprobes: generalize and rename notify_page_fault() as kprobe_page_fault()")
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
 2019-07-21 11:01:55 +02:00
Sven Schnelle 8858ac8e9e parisc: Implement kprobes 
Implement kprobes support for PA-RISC.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
 2019-05-03 23:47:39 +02:00