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[Qemu-devel] [PATCH v2] Use frame->retcode instead of frame address for


From: chengang
Subject: [Qemu-devel] [PATCH v2] Use frame->retcode instead of frame address for alpha target restorer
Date: Wed, 30 Mar 2016 23:42:40 +0800

From: Chen Gang <address@hidden>

The restorer needs the return code address which is frame->retcode, not
frame itself.

Signed-off-by: Chen Gang <address@hidden>
---
 linux-user/signal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux-user/signal.c b/linux-user/signal.c
index e487f9e..34367ce 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -5396,7 +5396,7 @@ static void setup_frame(int sig, struct target_sigaction 
*ka,
                    &frame->retcode[1]);
         __put_user(INSN_CALLSYS, &frame->retcode[2]);
         /* imb() */
-        r26 = frame_addr;
+        r26 = frame_addr + offsetof(struct target_sigframe, retcode);
     }
 
     unlock_user_struct(frame, frame_addr, 1);
@@ -5455,7 +5455,7 @@ static void setup_rt_frame(int sig, struct 
target_sigaction *ka,
                    &frame->retcode[1]);
         __put_user(INSN_CALLSYS, &frame->retcode[2]);
         /* imb(); */
-        r26 = frame_addr;
+        r26 = frame_addr + offsetof(struct target_rt_sigframe, retcode);
     }
 
     if (err) {
-- 
1.9.3




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