From: Sven Schnelle <svens@stackframe.org>
To: linux-parisc@vger.kernel.org
Cc: Sven Schnelle <svens@stackframe.org>
Subject: [PATCH 2/2] parisc: also set iaoq_b in instruction_pointer_set()
Date: Thu, 4 Apr 2019 18:16:04 +0200 [thread overview]
Message-ID: <20190404161604.6165-3-svens@stackframe.org> (raw)
In-Reply-To: <20190404161604.6165-1-svens@stackframe.org>
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 --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 */
--
2.20.1
next prev parent reply other threads:[~2019-04-04 16:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-04 16:16 [PATCH 0/2] small ptrace fixes Sven Schnelle
2019-04-04 16:16 ` [PATCH 1/2] parisc: regs_return_value() should return gpr28 Sven Schnelle
2019-04-04 16:16 ` Sven Schnelle [this message]
2019-04-04 17:54 ` [PATCH 0/2] small ptrace fixes Helge Deller
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