diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 597bdf0c2d..e12d969c2e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -6450,16 +6450,28 @@ static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2, case PR_SET_NO_NEW_PRIVS: case PR_GET_IO_FLUSHER: case PR_SET_IO_FLUSHER: + case PR_SET_CHILD_SUBREAPER: + case PR_GET_SPECULATION_CTRL: + case PR_SET_SPECULATION_CTRL: /* Some prctl options have no pointer arguments and we can pass on. */ return get_errno(prctl(option, arg2, arg3, arg4, arg5)); case PR_GET_CHILD_SUBREAPER: - case PR_SET_CHILD_SUBREAPER: - case PR_GET_SPECULATION_CTRL: - case PR_SET_SPECULATION_CTRL: + { + int val; + ret = get_errno(prctl(PR_GET_CHILD_SUBREAPER, &val, + arg3, arg4, arg5)); + if (!is_error(ret) && put_user_s32(val, arg2)) { + return -TARGET_EFAULT; + } + return ret; + } + case PR_GET_TID_ADDRESS: - /* TODO */ - return -TARGET_EINVAL; + { + TaskState *ts = env_cpu(env)->opaque; + return put_user_ual(ts->child_tidptr, arg2); + } case PR_GET_FPEXC: case PR_SET_FPEXC: |