int32 caml_seek_section(int fd, struct exec_trailer *trail, char *name)
{
int32 len = caml_seek_optional_section(fd, trail, name);
if (len == -1)
caml_fatal_error_arg("Fatal_error: section `%s' is missing\n", name);
return len;
}
void caml_debugger_init(void)
{
char * address;
char * port, * p;
struct hostent * host;
int n;
caml_register_global_root(&marshal_flags);
marshal_flags = caml_alloc(2, Tag_cons);
Store_field(marshal_flags, 0, Val_int(1)); /* Marshal.Closures */
Store_field(marshal_flags, 1, Val_emptylist);
address = getenv("CAML_DEBUG_SOCKET");
if (address == NULL) return;
dbg_addr = address;
#ifdef _WIN32
winsock_startup();
(void)atexit(winsock_cleanup);
#endif
/* Parse the address */
port = NULL;
for (p = address; *p != 0; p++) {
if (*p == ':') { *p = 0; port = p+1; break; }
}
if (port == NULL) {
#ifndef _WIN32
/* Unix domain */
sock_domain = PF_UNIX;
sock_addr.s_unix.sun_family = AF_UNIX;
strncpy(sock_addr.s_unix.sun_path, address,
sizeof(sock_addr.s_unix.sun_path));
sock_addr_len =
((char *)&(sock_addr.s_unix.sun_path) - (char *)&(sock_addr.s_unix))
+ strlen(address);
#else
caml_fatal_error("Unix sockets not supported");
#endif
} else {
/* Internet domain */
sock_domain = PF_INET;
for (p = (char *) &sock_addr.s_inet, n = sizeof(sock_addr.s_inet);
n > 0; n--) *p++ = 0;
sock_addr.s_inet.sin_family = AF_INET;
sock_addr.s_inet.sin_addr.s_addr = inet_addr(address);
if (sock_addr.s_inet.sin_addr.s_addr == -1) {
host = gethostbyname(address);
if (host == NULL)
caml_fatal_error_arg("Unknown debugging host %s\n", address);
memmove(&sock_addr.s_inet.sin_addr, host->h_addr, host->h_length);
}
sock_addr.s_inet.sin_port = htons(atoi(port));
sock_addr_len = sizeof(sock_addr.s_inet);
}
open_connection();
caml_debugger_in_use = 1;
caml_trap_barrier = caml_stack_high;
}
static char * parse_ld_conf(void)
{
const char * stdlib;
char * ldconfname, * config, * p, * q;
struct stat st;
int ldconf, nread;
stdlib = getenv("OCAMLLIB");
if (stdlib == NULL) stdlib = getenv("CAMLLIB");
if (stdlib == NULL) stdlib = OCAML_STDLIB_DIR;
ldconfname = (char *)
caml_stat_alloc(strlen(stdlib) + 2 + sizeof(LD_CONF_NAME));
strcpy(ldconfname, stdlib);
strcat(ldconfname, "/" LD_CONF_NAME);
if (stat(ldconfname, &st) == -1) {
caml_stat_free(ldconfname);
return NULL;
}
ldconf = open(ldconfname, O_RDONLY, 0);
if (ldconf == -1)
caml_fatal_error_arg("Fatal error: cannot read loader config file %s\n",
ldconfname);
config = (char *) caml_stat_alloc(st.st_size + 1);
nread = read(ldconf, config, st.st_size);
if (nread == -1)
caml_fatal_error_arg
("Fatal error: error while reading loader config file %s\n",
ldconfname);
config[nread] = 0;
q = config;
for (p = config; *p != 0; p++) {
if (*p == '\n') {
*p = 0;
caml_ext_table_add(&caml_shared_libs_path, q);
q = p + 1;
}
}
if (q < p) caml_ext_table_add(&caml_shared_libs_path, q);
close(ldconf);
caml_stat_free(ldconfname);
return config;
}
static char * read_section(int fd, struct exec_trailer *trail, char *name)
{
int32 len;
char * data;
len = caml_seek_optional_section(fd, trail, name);
if (len == -1) return NULL;
data = caml_stat_alloc(len + 1);
if (read(fd, data, len) != len)
caml_fatal_error_arg("Fatal error: error reading section %s\n", name);
data[len] = 0;
return data;
}
/* Build the table of primitives, given a search path and a list
of shared libraries (both 0-separated in a char array).
Abort the runtime system on error. */
void caml_build_primitive_table(char * lib_path,
char * libs,
char * req_prims)
{
char * tofree1, * tofree2;
#ifdef OCAML_LIB
char * tofree3 ;
#endif
char * p;
/* Initialize the search path for dynamic libraries:
- directories specified on the command line with the -I option
- directories specified in the CAML_LD_LIBRARY_PATH
- directories specified in the executable
- directories specified in the file <stdlib>/ld.conf */
tofree1 = caml_decompose_path(&caml_shared_libs_path,
getenv("CAML_LD_LIBRARY_PATH"));
if (lib_path != NULL)
for (p = lib_path; *p != 0; p += strlen(p) + 1)
caml_ext_table_add(&caml_shared_libs_path, p);
tofree2 = parse_ld_conf();
#ifdef OCAML_LIB
tofree3 = do_parse_ld_conf(OCAML_LIB) ;
#endif
/* Open the shared libraries */
caml_ext_table_init(&shared_libs, 8);
if (libs != NULL)
for (p = libs; *p != 0; p += strlen(p) + 1)
open_shared_lib(p);
/* Build the primitive table */
caml_ext_table_init(&caml_prim_table, 0x180);
#ifdef DEBUG
caml_ext_table_init(&caml_prim_name_table, 0x180);
#endif
for (p = req_prims; *p != 0; p += strlen(p) + 1) {
c_primitive prim = lookup_primitive(p);
if (prim == NULL)
caml_fatal_error_arg("Fatal error: unknown C primitive `%s'\n", p);
caml_ext_table_add(&caml_prim_table, (void *) prim);
#ifdef DEBUG
caml_ext_table_add(&caml_prim_name_table, strdup(p));
#endif
}
/* Clean up */
caml_stat_free(tofree1);
caml_stat_free(tofree2);
#ifdef OCAML_LIB
caml_stat_free(tofree3);
#endif
caml_ext_table_free(&caml_shared_libs_path, 0);
}
/* Build the table of primitives, given a search path and a list
of shared libraries (both 0-separated in a char array).
Abort the runtime system on error. */
void caml_build_primitive_table(char * lib_path,
char * libs,
char * req_prims)
{
char * p;
caml_ext_table_init(&caml_prim_table, 0xA0);
for (p = req_prims; *p != 0; p += strlen(p) + 1) {
c_primitive prim = lookup_primitive(p);
if (prim == NULL)
caml_fatal_error_arg("Fatal error: unknown C primitive `%s'\n", p);
caml_ext_table_add(&caml_prim_table, (void *) prim);
}
/* Clean up */
}
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 OCaml runtime, version " OCAML_VERSION "\n");
exit (0);
}else if (!strcmp (argv[i], "-vnum")){
printf (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_record_backtrace(Val_true);
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;
}
int caml_parse_command_line(char_os **argv)
{
int i, j;
for(i = 1; argv[i] != NULL && argv[i][0] == _T('-'); i++) {
switch(argv[i][1]) {
case _T('t'):
params.trace_level++; /* ignored unless DEBUG mode */
break;
case _T('v'):
if (!strcmp_os (argv[i], _T("-version"))){
printf ("The OCaml runtime, version " OCAML_VERSION_STRING "\n");
exit (0);
}else if (!strcmp_os (argv[i], _T("-vnum"))){
printf (OCAML_VERSION_STRING "\n");
exit (0);
}else{
params.verb_gc = 0x001+0x004+0x008+0x010+0x020;
}
break;
case _T('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 _T('b'):
params.backtrace_enabled_init = 1;
break;
case _T('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", caml_stat_strdup_of_os(argv[i]));
}
}
return i;
}
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;
#ifdef __linux__
static char proc_self_exe[256];
#endif
/* 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 = 0xBF;
#endif
parse_camlrunparam();
pos = 0;
exe_name = argv[0];
#ifdef __linux__
if (caml_executable_name(proc_self_exe, sizeof(proc_self_exe)) == 0)
exe_name = proc_self_exe;
#endif
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 (minor_heap_init, heap_size_init, heap_chunk_init,
percent_free_init, max_percent_free_init);
caml_init_stack (max_stack_init);
init_atoms();
/* 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);
/* 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_init_exceptions();
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);
}
}
