Follow the kernel assembly, which considers all negative
return values to be errors.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
linux-user/nios2/cpu_loop.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index a285781fc5..969460df58 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -55,9 +55,14 @@ void cpu_loop(CPUNios2State *env)
env->regs[7], env->regs[8], env->regs[9],
0, 0);
+ /*
+ * See the code after translate_rc_and_ret: all negative
+ * values are errors (aided by userspace restricted to 2G),
+ * errno is returned positive in r2, and error indication
+ * is a boolean in r7.
+ */
env->regs[2] = abs(ret);
- /* Return value is 0..4096 */
- env->regs[7] = ret > 0xfffff000u;
+ env->regs[7] = ret < 0;
break;
case 1:
--
2.25.1
