ocaml/asmrun/startup.c

82 lines
2.6 KiB
C
Raw Normal View History

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy and Damien Doligez, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
/* Start-up code */
#include <stdio.h>
#include <stdlib.h>
#include "gc.h"
#include "gc_ctrl.h"
#include "misc.h"
#include "mlvalues.h"
#include "sys.h"
header_t atom_table[256];
char * static_data_start, * static_data_end;
static void init_atoms()
{
int i;
extern struct { char * begin; char * end; } caml_data_segments[];
for (i = 0; i < 256; i++) atom_table[i] = Make_header(0, i, White);
static_data_start = caml_data_segments[0].begin;
static_data_end = caml_data_segments[0].end;
for (i = 1; caml_data_segments[i].begin != 0; i++) {
if (caml_data_segments[i].begin < static_data_start)
static_data_start = caml_data_segments[i].begin;
if (caml_data_segments[i].end > static_data_end)
static_data_end = caml_data_segments[i].end;
}
}
extern value caml_start_program P((void));
void caml_main(argc, argv)
int argc;
char * argv[];
{
int verbose_init = 0, percent_free_init = Percent_free_def;
long minor_heap_init = Minor_heap_def, heap_chunk_init = Heap_chunk_def;
char * opt;
value retcode;
init_ieee_floats();
#ifdef DEBUG
verbose_init = 1;
#endif
/* Runtime options. The option letter is the first letter of the
last word of the ML name of the option (see [lib/gc.mli]). */
opt = getenv ("CAMLRUNPARAM");
if (opt != NULL){
while (*opt != '\0'){
switch (*opt++){
case 's': sscanf (opt, "=%ld", &minor_heap_init); break;
case 'i': sscanf (opt, "=%ld", &heap_chunk_init); break;
case 'o': sscanf (opt, "=%d", &percent_free_init); break;
case 'v': sscanf (opt, "=%d", &verbose_init); break;
}
}
}
init_gc (minor_heap_init, heap_chunk_init, percent_free_init, verbose_init);
init_atoms();
init_signals();
sys_init(argv);
retcode = caml_start_program();
if (retcode != 0) {
fatal_error_arg("Fatal error: uncaught exception %s.\n",
String_val(Field(Field(retcode, 0), 0)));
}
}