static void parse_camlrunparam(void)
{
char *opt = getenv ("OCAMLRUNPARAM");
if (opt == NULL) opt = getenv ("CAMLRUNPARAM");
if (opt != NULL){
while (*opt != '\0'){
switch (*opt++){
case 's': scanmult (opt, &minor_heap_init); break;
case 'i': scanmult (opt, &heap_chunk_init); break;
case 'h': scanmult (opt, &heap_size_init); break;
case 'l': scanmult (opt, &max_stack_init); break;
case 'o': scanmult (opt, &percent_free_init); break;
case 'O': scanmult (opt, &max_percent_free_init); break;
case 'v': scanmult (opt, &caml_verb_gc); break;
case 'b': caml_init_backtrace(); break;
case 'p': caml_parser_trace = 1; break;
}
}
}
}
static int parse_command_line(char **argv)
{
int i, j;
for(i = 1; argv[i] != NULL && argv[i][0] == '-'; i++) {
switch(argv[i][1]) {
#ifdef DEBUG
case 't':
caml_trace_flag++;
break;
#endif
case 'v':
if (!strcmp (argv[i], "-version")){
printf ("The Objective Caml runtime, version " OCAML_VERSION "\n");
exit (0);
}else{
caml_verb_gc = 0x001+0x004+0x008+0x010+0x020;
}
break;
case 'p':
for (j = 0; caml_names_of_builtin_cprim[j] != NULL; j++)
printf("%s\n", caml_names_of_builtin_cprim[j]);
exit(0);
break;
case 'b':
caml_init_backtrace();
break;
case 'I':
if (argv[i + 1] != NULL) {
caml_ext_table_add(&caml_shared_libs_path, argv[i + 1]);
i++;
}
break;
default:
caml_fatal_error_arg("Unknown option %s.\n", argv[i]);
}
}
return i;
}
CAMLexport void caml_startup_code(
code_t code, asize_t code_size,
char *data, asize_t data_size,
char *section_table, asize_t section_table_size,
char **argv)
{
value res;
char * cds_file;
char * exe_name;
static char proc_self_exe[256];
caml_init_ieee_floats();
#ifdef _MSC_VER
caml_install_invalid_parameter_handler();
#endif
caml_init_custom_operations();
#ifdef DEBUG
caml_verb_gc = 63;
#endif
cds_file = getenv("CAML_DEBUG_FILE");
if (cds_file != NULL) {
caml_cds_file = caml_strdup(cds_file);
}
caml_parse_ocamlrunparam();
exe_name = argv[0];
if (caml_executable_name(proc_self_exe, sizeof(proc_self_exe)) == 0)
exe_name = proc_self_exe;
caml_external_raise = NULL;
/* Initialize the abstract machine */
caml_init_gc (caml_init_minor_heap_wsz, caml_init_heap_wsz,
caml_init_heap_chunk_sz, caml_init_percent_free,
caml_init_max_percent_free, caml_init_major_window);
caml_init_stack (caml_init_max_stack_wsz);
caml_init_atom_table();
caml_init_backtrace();
/* Initialize the interpreter */
caml_interprete(NULL, 0);
/* Initialize the debugger, if needed */
caml_debugger_init();
/* Load the code */
caml_start_code = code;
caml_code_size = code_size;
caml_init_code_fragments();
caml_init_debug_info();
if (caml_debugger_in_use) {
int len, i;
len = code_size / sizeof(opcode_t);
caml_saved_code = (unsigned char *) caml_stat_alloc(len);
for (i = 0; i < len; i++) caml_saved_code[i] = caml_start_code[i];
}
#ifdef THREADED_CODE
caml_thread_code(caml_start_code, code_size);
#endif
/* Use the builtin table of primitives */
caml_build_primitive_table_builtin();
/* Load the globals */
caml_global_data = caml_input_value_from_block(data, data_size);
/* Ensure that the globals are in the major heap. */
caml_oldify_one (caml_global_data, &caml_global_data);
caml_oldify_mopup ();
/* Record the sections (for caml_get_section_table in meta.c) */
caml_section_table = section_table;
caml_section_table_size = section_table_size;
/* Initialize system libraries */
caml_sys_init(exe_name, argv);
/* Execute the program */
caml_debugger(PROGRAM_START);
res = caml_interprete(caml_start_code, caml_code_size);
if (Is_exception_result(res)) {
caml_exn_bucket = Extract_exception(res);
if (caml_debugger_in_use) {
caml_extern_sp = &caml_exn_bucket; /* The debugger needs the
exception value.*/
caml_debugger(UNCAUGHT_EXC);
}
caml_fatal_uncaught_exception(caml_exn_bucket);
}
}
CAMLexport void caml_main(char **argv)
{
int fd, pos;
struct exec_trailer trail;
struct channel * chan;
value res;
char * shared_lib_path, * shared_libs, * req_prims;
char * exe_name;
static char proc_self_exe[256];
/* Machine-dependent initialization of the floating-point hardware
so that it behaves as much as possible as specified in IEEE */
caml_init_ieee_floats();
#ifdef _MSC_VER
caml_install_invalid_parameter_handler();
#endif
caml_init_custom_operations();
caml_ext_table_init(&caml_shared_libs_path, 8);
caml_external_raise = NULL;
/* Determine options and position of bytecode file */
#ifdef DEBUG
caml_verb_gc = 0x3F;
#endif
caml_parse_ocamlrunparam();
#ifdef DEBUG
caml_gc_message (-1, "### OCaml runtime: debug mode ###\n", 0);
#endif
pos = 0;
/* First, try argv[0] (when ocamlrun is called by a bytecode program) */
exe_name = argv[0];
fd = caml_attempt_open(&exe_name, &trail, 0);
/* Should we really do that at all? The current executable is ocamlrun
itself, it's never a bytecode program. */
if (fd < 0
&& caml_executable_name(proc_self_exe, sizeof(proc_self_exe)) == 0) {
exe_name = proc_self_exe;
fd = caml_attempt_open(&exe_name, &trail, 0);
}
if (fd < 0) {
pos = parse_command_line(argv);
if (argv[pos] == 0)
caml_fatal_error("No bytecode file specified.\n");
exe_name = argv[pos];
fd = caml_attempt_open(&exe_name, &trail, 1);
switch(fd) {
case FILE_NOT_FOUND:
caml_fatal_error_arg("Fatal error: cannot find file '%s'\n", argv[pos]);
break;
case BAD_BYTECODE:
caml_fatal_error_arg(
"Fatal error: the file '%s' is not a bytecode executable file\n",
exe_name);
break;
}
}
/* Read the table of contents (section descriptors) */
caml_read_section_descriptors(fd, &trail);
/* Initialize the abstract machine */
caml_init_gc (caml_init_minor_heap_wsz, caml_init_heap_wsz,
caml_init_heap_chunk_sz, caml_init_percent_free,
caml_init_max_percent_free, caml_init_major_window);
caml_init_stack (caml_init_max_stack_wsz);
caml_init_atom_table();
caml_init_backtrace();
/* Initialize the interpreter */
caml_interprete(NULL, 0);
/* Initialize the debugger, if needed */
caml_debugger_init();
/* Load the code */
caml_code_size = caml_seek_section(fd, &trail, "CODE");
caml_load_code(fd, caml_code_size);
caml_init_debug_info();
/* Build the table of primitives */
shared_lib_path = read_section(fd, &trail, "DLPT");
shared_libs = read_section(fd, &trail, "DLLS");
req_prims = read_section(fd, &trail, "PRIM");
if (req_prims == NULL) caml_fatal_error("Fatal error: no PRIM section\n");
caml_build_primitive_table(shared_lib_path, shared_libs, req_prims);
caml_stat_free(shared_lib_path);
caml_stat_free(shared_libs);
caml_stat_free(req_prims);
/* Load the globals */
caml_seek_section(fd, &trail, "DATA");
chan = caml_open_descriptor_in(fd);
caml_global_data = caml_input_val(chan);
caml_close_channel(chan); /* this also closes fd */
caml_stat_free(trail.section);
/* Ensure that the globals are in the major heap. */
caml_oldify_one (caml_global_data, &caml_global_data);
caml_oldify_mopup ();
/* Initialize system libraries */
caml_sys_init(exe_name, argv + pos);
#ifdef _WIN32
/* Start a thread to handle signals */
if (getenv("CAMLSIGPIPE"))
_beginthread(caml_signal_thread, 4096, NULL);
#endif
/* Execute the program */
caml_debugger(PROGRAM_START);
res = caml_interprete(caml_start_code, caml_code_size);
if (Is_exception_result(res)) {
caml_exn_bucket = Extract_exception(res);
if (caml_debugger_in_use) {
caml_extern_sp = &caml_exn_bucket; /* The debugger needs the
exception value.*/
caml_debugger(UNCAUGHT_EXC);
}
caml_fatal_uncaught_exception(caml_exn_bucket);
}
}
