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linux-user: fix alpha signal emulation 

setup_frame() doesn't set correctly the address of the trampoline code.
The offset of retcode array must be added to the stack frame address.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180401204653.14211-1-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-04-01 22:46:53 +02:00
parent f184de7553
commit 95a29a4e3e
1 changed files with 2 additions and 2 deletions
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4
linux-user/signal.c
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@ -6367,7 +6367,7 @@ 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);
@ -6424,7 +6424,7 @@ 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_sigframe, retcode);
}
if (err) {