Re: [PATCH 1/2] tools/nolibc: Provide vfork()
From: Thomas Weißschuh
Date: Mon Jun 09 2025 - 11:35:37 EST
Small followup review, sorry for the noise.
On 2025-06-09 16:08:56+0100, Mark Brown wrote:
<snip>
> +#ifndef sys_vfork
This ifndef is not necessary here.
No architecture has a special version.
> +static __attribute__((unused))
> +pid_t sys_vfork(void)
> +{
> +#ifdef __NR_vfork
For consistency:
#if defined(__NR_vfork)
> + return my_syscall0(__NR_vfork);
> +#elif defined(__NR_clone3)
> + /*
> + * clone() could be used but has different argument orders per
> + * architecture.
> + */
> + struct clone_args args = {
> + .flags = CLONE_VM | CLONE_VFORK,
> + .exit_signal = SIGCHLD,
> + };
> +
> + return my_syscall2(__NR_clone3, &args, sizeof(args));
> +#else
> + return __nolibc_enosys(__func__);
> +#endif
> +}
> +#endif