diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index d7e4d9ff2f..7aa2c1d720 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1444,6 +1444,29 @@ static abi_long do_select(int n, return ret; } + +#if defined(TARGET_WANT_OLD_SYS_SELECT) +static abi_long do_old_select(abi_ulong arg1) +{ + struct target_sel_arg_struct *sel; + abi_ulong inp, outp, exp, tvp; + long nsel; + + if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) { + return -TARGET_EFAULT; + } + + nsel = tswapal(sel->n); + inp = tswapal(sel->inp); + outp = tswapal(sel->outp); + exp = tswapal(sel->exp); + tvp = tswapal(sel->tvp); + + unlock_user_struct(sel, arg1, 0); + + return do_select(nsel, inp, outp, exp, tvp); +} +#endif #endif static abi_long do_pipe2(int host_pipe[], int flags) @@ -8668,24 +8691,15 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #if defined(TARGET_NR_select) case TARGET_NR_select: -#if defined(TARGET_S390X) || defined(TARGET_ALPHA) - ret = do_select(arg1, arg2, arg3, arg4, arg5); +#if defined(TARGET_WANT_NI_OLD_SELECT) + /* some architectures used to have old_select here + * but now ENOSYS it. + */ + ret = -TARGET_ENOSYS; +#elif defined(TARGET_WANT_OLD_SYS_SELECT) + ret = do_old_select(arg1); #else - { - struct target_sel_arg_struct *sel; - abi_ulong inp, outp, exp, tvp; - long nsel; - - if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) - goto efault; - nsel = tswapal(sel->n); - inp = tswapal(sel->inp); - outp = tswapal(sel->outp); - exp = tswapal(sel->exp); - tvp = tswapal(sel->tvp); - unlock_user_struct(sel, arg1, 0); - ret = do_select(nsel, inp, outp, exp, tvp); - } + ret = do_select(arg1, arg2, arg3, arg4, arg5); #endif break; #endif |