diff mbox series

[2/2] parisc: also set iaoq_b in instruction_pointer_set()

Message ID 20190404161604.6165-3-svens@stackframe.org (mailing list archive)
State Accepted, archived
Headers show
Series small ptrace fixes | expand

Commit Message

Sven Schnelle April 4, 2019, 4:16 p.m. UTC 
When setting the instruction pointer on PA-RISC we also need
to set the back of the instruction queue to the new offset, otherwise
we will execute on instruction from the new location, and jumping
back to the old location stored in iaoq_b.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
---
 arch/parisc/include/asm/ptrace.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 4a87b3d600c6..9ff033d261ab 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -28,7 +28,8 @@  static inline unsigned long regs_return_value(struct pt_regs *regs)
 static inline void instruction_pointer_set(struct pt_regs *regs,
 						unsigned long val)
 {
-        regs->iaoq[0] = val;
+	regs->iaoq[0] = val;
+	regs->iaoq[1] = val + 4;
 }
 
 /* Query offset/name of register from its name/offset */