Re: execv obsolet ?

[Alan C. Assis]

Hi Miguel,

I suggest you to try first in the Linux.

NuttX should give you the same result ;-)

BR,

Alan

On 10/12/23, MIGUEL ALEXANDRE WISINTAINER <tcpipc...@hotmail.com> wrote:
> Now compiles 🙂
>
> in theory should show the files got from ls on terminal ?
>
> Builtin Apps:
>     i2c      sh       hello    nsh
> nsh> hello
> nsh>
>
> =============
>
> #include <nuttx/config.h>
> #include <stdio.h>
> #include <stdlib.h>
> #include <unistd.h>
>
>
> #ifdef CONFIG_BUILD_KERNEL
> int main(int argc, FAR char *argv[])
> #else
> int hello_main(int argc, char *argv[])
> #endif
> {
>
> if (argc < 2)
> {
>       static char * const args[2] =
>       {
>             "ls",
>             NULL
>       };
>
>       execv(args[0], args);
> }
> De: Xiang Xiao <xiaoxiang781...@gmail.com>
> Enviado: quinta-feira, 12 de outubro de 2023 18:08
> Para: dev@nuttx.apache.org <dev@nuttx.apache.org>
> Assunto: Re: execv obsolet ?
>
> you need enable CONFIG_LIBC_EXECFUNCS:
> https://github.com/apache/nuttx/blob/master/libs/libc/unistd/lib_execv.c#L29
>
> On Fri, Oct 13, 2023 at 1:59 AM MIGUEL ALEXANDRE WISINTAINER <
> tcpipc...@hotmail.com> wrote:
>
>> #include <nuttx/config.h>
>> #include <stdio.h>
>> #include <stdlib.h>
>> #include <unistd.h>
>>
>> #ifdef CONFIG_BUILD_KERNEL
>> int main(int argc, FAR char *argv[])
>> #else
>> int hello_main(int argc, char *argv[])
>> #endif
>> {
>>
>> if (argc < 2)
>> {
>> static char * const args[2] =
>> {
>> "/bin/ls",
>> NULL
>> };
>>
>> execv(args[0], args);
>> }
>>
>> else
>> {
>> int i;
>>
>> for (i = 1; i < argc; i++)
>> {
>> static char * const args[3] =
>> {
>> "/bin/ls",
>> NULL,
>> NULL
>> };
>> args[1] = argv[i];
>> execv(args[0], args);
>> }
>> }
>> return EXIT_SUCCESS;
>> }
>>
>> hello_main.c:(.text.hello_main+0xe): undefined reference to `execv'
>> xtensa-esp32-elf-ld: hello_main.c:(.text.hello_main+0x20): undefined
>> reference to `execv'
>> make[1]: *** [Makefile:173: nuttx] Error 1
>> make: *** [tools/Unix.mk:537: nuttx] Error 2
>>
>