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(parent: 320000e) | patch
parisc: fix frame pointer in ftrace_regs_caller()
authorSven Schnelle <svens@stackframe.org>
Wed, 30 Oct 2019 08:17:18 +0000 (09:17 +0100)
committerHelge Deller <deller@gmx.de>
Wed, 30 Oct 2019 20:24:40 +0000 (21:24 +0100)
commit3d252454edd0fe88c8250cb7f9dfb9ec12d208d7
tree251da25272b1694124dc2a7ec2dd98e0dbf6544ftree | snapshot
parent320000e72ec0613e164ce9608d865396fb2da278commit | diff
parisc: fix frame pointer in ftrace_regs_caller()

The current code in ftrace_regs_caller() doesn't assign
%r3 to contain the address of the current frame. This
is hidden if the kernel is compiled with FRAME_POINTER,
but without it just crashes because it tries to dereference
an arbitrary address. Fix this by always setting %r3 to the
current stack frame.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
arch/parisc/kernel/entry.S diff | blob | history
Domain: System / Kernel;