diff options
| author | Janne Grunau <j@jannau.net> | 2014-02-20 10:35:56 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-02-20 10:35:56 +0000 |
| commit | 2ea5a2ca1f1dc302652d2ad5035e0b209ccaa177 (patch) | |
| tree | c35fdc143b5569bc9f3a5224f6789e2d59704159 | |
| parent | 60510aed69f69bfd44bf6e58c571dbba8b1b43a0 (diff) | |
linux-user: AArch64: Fix exclusive store of the zero register
Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | linux-user/main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index cabc9e1a0e..919297736c 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 { |