142 lines
4.6 KiB
C
142 lines
4.6 KiB
C
/***********************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy and Damien Doligez, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* Start-up code */
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#include <stdio.h>
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#include <stdlib.h>
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#include "caml/callback.h"
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#include "caml/backtrace.h"
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#include "caml/custom.h"
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#include "caml/debugger.h"
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#include "caml/fail.h"
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#include "caml/freelist.h"
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#include "caml/gc.h"
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#include "caml/gc_ctrl.h"
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#include "caml/intext.h"
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#include "caml/memory.h"
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#include "caml/misc.h"
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#include "caml/mlvalues.h"
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#include "caml/osdeps.h"
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#include "caml/printexc.h"
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#include "stack.h"
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#include "caml/startup_aux.h"
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#include "caml/sys.h"
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#ifdef HAS_UI
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#include "caml/ui.h"
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#endif
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extern int caml_parser_trace;
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CAMLexport header_t caml_atom_table[256];
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char * caml_code_area_start, * caml_code_area_end;
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/* Initialize the atom table and the static data and code area limits. */
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struct segment { char * begin; char * end; };
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static void init_static(void)
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{
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extern struct segment caml_data_segments[], caml_code_segments[];
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int i;
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struct code_fragment * cf;
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caml_init_atom_table ();
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for (i = 0; caml_data_segments[i].begin != 0; i++) {
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/* PR#5509: we must include the zero word at end of data segment,
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because pointers equal to caml_data_segments[i].end are static data. */
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if (caml_page_table_add(In_static_data,
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caml_data_segments[i].begin,
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caml_data_segments[i].end + sizeof(value)) != 0)
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caml_fatal_error("Fatal error: not enough memory for initial page table");
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}
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caml_code_area_start = caml_code_segments[0].begin;
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caml_code_area_end = caml_code_segments[0].end;
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for (i = 1; caml_code_segments[i].begin != 0; i++) {
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if (caml_code_segments[i].begin < caml_code_area_start)
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caml_code_area_start = caml_code_segments[i].begin;
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if (caml_code_segments[i].end > caml_code_area_end)
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caml_code_area_end = caml_code_segments[i].end;
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}
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/* Register the code in the table of code fragments */
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cf = caml_stat_alloc(sizeof(struct code_fragment));
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cf->code_start = caml_code_area_start;
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cf->code_end = caml_code_area_end;
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cf->digest_computed = 0;
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caml_ext_table_init(&caml_code_fragments_table, 8);
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caml_ext_table_add(&caml_code_fragments_table, cf);
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}
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/* These are termination hooks used by the systhreads library */
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struct longjmp_buffer caml_termination_jmpbuf;
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void (*caml_termination_hook)(void *) = NULL;
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extern value caml_start_program (void);
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extern void caml_init_ieee_floats (void);
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extern void caml_init_signals (void);
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#ifdef _MSC_VER
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/* PR 4887: avoid crash box of windows runtime on some system calls */
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extern void caml_install_invalid_parameter_handler();
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#endif
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void caml_main(char **argv)
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{
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char * exe_name;
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static char proc_self_exe[256];
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value res;
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char tos;
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caml_init_frame_descriptors();
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caml_init_ieee_floats();
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#ifdef _MSC_VER
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caml_install_invalid_parameter_handler();
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#endif
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caml_init_custom_operations();
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#ifdef DEBUG
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caml_verb_gc = 63;
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#endif
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caml_top_of_stack = &tos;
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caml_parse_ocamlrunparam();
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caml_init_gc (caml_init_minor_heap_wsz, caml_init_heap_wsz,
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caml_init_heap_chunk_sz, caml_init_percent_free,
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caml_init_max_percent_free);
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init_static();
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caml_init_signals();
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caml_init_backtrace();
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caml_debugger_init (); /* force debugger.o stub to be linked */
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exe_name = argv[0];
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if (exe_name == NULL) exe_name = "";
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if (caml_executable_name(proc_self_exe, sizeof(proc_self_exe)) == 0)
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exe_name = proc_self_exe;
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else
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exe_name = caml_search_exe_in_path(exe_name);
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caml_sys_init(exe_name, argv);
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if (sigsetjmp(caml_termination_jmpbuf.buf, 0)) {
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if (caml_termination_hook != NULL) caml_termination_hook(NULL);
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return;
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}
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res = caml_start_program();
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if (Is_exception_result(res))
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caml_fatal_uncaught_exception(Extract_exception(res));
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}
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void caml_startup(char **argv)
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{
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caml_main(argv);
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}
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