#include <stdint.h>
#include <stddef.h>
#include <system/system.h>
#include <sysdefs/processctl.h>
#include <errors.h>
#include <uprintf.h>
#include <log.h>
#include <util/util.h>
#include <umalloc/umalloc.h>

extern void main(void);
extern uint8_t _bss_start[];
extern uint8_t _bss_end[];

void clearbss(void) {
  uint8_t *p = _bss_start;
  while (p < _bss_end) {
    *p++ = 0;
  }
}

#define MAX_ARGS 25
static char *_args[MAX_ARGS];

size_t _argslen;

char **args(void) {
  return (char **)_args;
}

size_t argslen(void) {
  return _argslen;
}

// ulib initialization goes here
void _premain(void) {
  clearbss();

  for (size_t i = 0; i < ARRLEN(_args); i++) {
    _args[i] = umalloc(PROC_ARG_MAX);
  }

  processctl(-1, PCTL_ARGV, (uint64_t)&_argslen, (uint64_t)_args, MAX_ARGS);

  main();
}