linux-user/nios2: Adjust error return
Follow the kernel assembly, which considers all negative return values to be errors. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-5-richard.henderson@linaro.org>
This commit is contained in:
parent
66254caa42
commit
b3a219b70e
|
@ -55,9 +55,14 @@ void cpu_loop(CPUNios2State *env)
|
||||||
env->regs[7], env->regs[8], env->regs[9],
|
env->regs[7], env->regs[8], env->regs[9],
|
||||||
0, 0);
|
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);
|
env->regs[2] = abs(ret);
|
||||||
/* Return value is 0..4096 */
|
env->regs[7] = ret < 0;
|
||||||
env->regs[7] = ret > 0xfffff000u;
|
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case 1:
|
case 1:
|
||||||
|
|
Loading…
Reference in New Issue