Re: [PATCH v3 2/3] tools/nolibc: unistd: Add readlink()

[Willy Tarreau]

On Thu, Jul 02, 2026 at 05:51:00PM +0900, Daniel Palmer wrote:
> Add readlink(). This is needed to test getcwd().
> 
> Signed-off-by: Daniel Palmer <daniel@xxxxxxxxx>
> ---
>  tools/include/nolibc/unistd.h | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h
> index 2e0edbc26315..a264a20da13d 100644
> --- a/tools/include/nolibc/unistd.h
> +++ b/tools/include/nolibc/unistd.h
> @@ -128,6 +128,22 @@ int msleep(unsigned int msecs)
>  		return 0;
>  }
>  
> +/*
> + * ssize_t readlink(const char *path, char *buf, size_t bufsiz);
> + */
> +
> +static __attribute__((unused))
> +ssize_t _sys_readlink(const char *path, char *buf, size_t bufsiz)
> +{
> +	return __nolibc_syscall4(__NR_readlinkat, AT_FDCWD, path, buf, bufsiz);
> +}
> +
> +static __attribute__((unused))
> +ssize_t readlink(const char *path, char *buf, size_t bufsiz)
> +{
> +	return __sysret(_sys_readlink(path, buf, bufsiz));
> +}
> +
>  static __attribute__((unused))
>  unsigned int sleep(unsigned int seconds)
>  {

Acked-by: Willy Tarreau <w@xxxxxx>

Willy