diff options
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index bcdf8441b8..d0f662c07d 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -359,16 +359,27 @@ void cpu_loop(CPUARMState *env) case EXCP_SWI: { /* system call */ - insn = ldl((void *)(env->regs[15] - 4)); - n = insn & 0xffffff; + if (env->thumb) { + insn = lduw((void *)(env->regs[15] - 2)); + n = insn & 0xff; + } else { + insn = ldl((void *)(env->regs[15] - 4)); + n = insn & 0xffffff; + } + if (n == ARM_NR_cacheflush) { arm_cache_flush(env->regs[0], env->regs[1]); } else if (n == ARM_NR_semihosting || n == ARM_NR_thumb_semihosting) { env->regs[0] = do_arm_semihosting (env); - } else if (n >= ARM_SYSCALL_BASE) { + } else if (n >= ARM_SYSCALL_BASE + || (env->thumb && n == ARM_THUMB_SYSCALL)) { /* linux syscall */ - n -= ARM_SYSCALL_BASE; + if (env->thumb) { + n = env->regs[7]; + } else { + n -= ARM_SYSCALL_BASE; + } env->regs[0] = do_syscall(env, n, env->regs[0], |