#include <stdint.h>
#include <stddef.h>
#include <system/system.h>
#include <sysdefs/processctl.h>
#include <errors.h>
#include <dlmalloc/malloc.h>
#include <uprintf.h>
#include <log.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;
  }
}

char **_args;
size_t _argslen;

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

size_t argslen(void) {
  return _argslen;
}

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

  #define MAX_ARGS 30
  _args = (char **)dlmalloc(MAX_ARGS * sizeof(char *));
  for (size_t i = 0; i < MAX_ARGS; i++) {
    _args[i] = dlmalloc(PROC_ARG_MAX);
  }

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

  main();
}