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[Qemu-devel] [PATCH 1/1] linux-user: AArch64: Fix exclusive store of the
From: |
Janne Grunau |
Subject: |
[Qemu-devel] [PATCH 1/1] linux-user: AArch64: Fix exclusive store of the zero register |
Date: |
Tue, 18 Feb 2014 17:46:43 +0100 |
Signed-off-by: Janne Grunau <address@hidden>
---
linux-user/main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/linux-user/main.c b/linux-user/main.c
index cabc9e1..9192977 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -953,7 +953,8 @@ static int do_strex_a64(CPUARMState *env)
goto finish;
}
}
- val = env->xregs[rt];
+ /* handle the zero register */
+ val = rt == 31 ? 0 : env->xregs[rt];
switch (size) {
case 0:
segv = put_user_u8(val, addr);
@@ -972,7 +973,8 @@ static int do_strex_a64(CPUARMState *env)
goto error;
}
if (is_pair) {
- val = env->xregs[rt2];
+ /* handle the zero register */
+ val = rt2 == 31 ? 0 : env->xregs[rt2];
if (size == 2) {
segv = put_user_u32(val, addr + 4);
} else {
--
1.8.5.5
- [Qemu-devel] [PATCH 1/1] linux-user: AArch64: Fix exclusive store of the zero register,
Janne Grunau <=