2 * main() entry point for a stand-alone SBCL image
6 * This software is part of the SBCL system. See the README file for
9 * This software is derived from the CMU CL system, which was
10 * written at Carnegie Mellon University and released into the
11 * public domain. The software is in the public domain and is
12 * provided with absolutely no warranty. See the COPYING and CREDITS
13 * files for more information.
20 #ifndef LISP_FEATURE_WIN32
23 #include <sys/types.h>
24 #ifndef LISP_FEATURE_WIN32
30 #include <sys/param.h>
33 #ifndef LISP_FEATURE_WIN32
39 #if defined(SVR4) || defined(__linux__)
50 #include "interrupt.h"
60 #include "genesis/static-symbols.h"
61 #include "genesis/symbol.h"
70 #define SBCL_HOME "/usr/local/lib/sbcl/"
73 #ifdef LISP_FEATURE_HPUX
74 extern void *return_from_lisp_stub;
75 #include "genesis/closure.h"
76 #include "genesis/simple-fun.h"
80 /* SIGINT handler that invokes the monitor (for when Lisp isn't up to it) */
82 sigint_handler(int signal, siginfo_t *info, void *void_context)
84 lose("\nSIGINT hit at 0x%08lX\n",
85 (unsigned long) *os_context_pc_addr(void_context));
88 /* (This is not static, because we want to be able to call it from
93 SHOW("entering sigint_init()");
94 install_handler(SIGINT, sigint_handler);
95 SHOW("leaving sigint_init()");
99 * helper functions for dealing with command line args
103 successful_malloc(size_t size)
105 void* result = malloc(size);
107 lose("malloc failure\n");
111 return (void *) NULL; /* dummy value: return something ... */
115 copied_string(char *string)
117 return strcpy(successful_malloc(1+strlen(string)), string);
121 copied_existing_filename_or_null(char *filename)
123 struct stat filename_stat;
124 if (stat(filename, &filename_stat)) { /* if failure */
127 return copied_string(filename);
131 /* miscellaneous chattiness */
137 "Usage: sbcl [runtime-options] [toplevel-options] [user-options]\n\
138 Common runtime options:\n\
139 --help Print this message and exit.\n\
140 --version Print version information and exit.\n\
141 --core <filename> Use the specified core file instead of the default.\n\
142 --dynamic-space-size <MiB> Size of reserved dynamic space in megabytes.\n\
143 --control-stack-size <MiB> Size of reserved control stack in megabytes.\n\
145 Common toplevel options:\n\
146 --sysinit <filename> System-wide init-file to use instead of default.\n\
147 --userinit <filename> Per-user init-file to use instead of default.\n\
148 --no-sysinit Inhibit processing of any system-wide init-file.\n\
149 --no-userinit Inhibit processing of any per-user init-file.\n\
151 User options are not processed by SBCL. All runtime options must\n\
152 appear before toplevel options, and all toplevel options must\n\
153 appear before user options.\n\
155 For more information please refer to the SBCL User Manual, which\n\
156 should be installed along with SBCL, and is also available from the\n\
157 website <http://www.sbcl.org/>.\n");
163 printf("SBCL %s\n", SBCL_VERSION_STRING);
170 "This is SBCL %s, an implementation of ANSI Common Lisp.\n\
171 More information about SBCL is available at <http://www.sbcl.org/>.\n\
173 SBCL is free software, provided as is, with absolutely no warranty.\n\
174 It is mostly in the public domain; some portions are provided under\n\
175 BSD-style licenses. See the CREDITS and COPYING files in the\n\
176 distribution for more information.\n\
177 ", SBCL_VERSION_STRING);
180 /* Look for a core file to load, first in the directory named by the
181 * SBCL_HOME environment variable, then in a hardcoded default
182 * location. Returns a malloced copy of the core filename. */
186 char *sbcl_home = getenv("SBCL_HOME");
188 char *stem = "/sbcl.core";
191 if (!(sbcl_home && *sbcl_home)) sbcl_home = SBCL_HOME;
192 lookhere = (char *) calloc(strlen(sbcl_home) +
196 sprintf(lookhere, "%s%s", sbcl_home, stem);
197 core = copied_existing_filename_or_null(lookhere);
200 lose("can't find core file at %s\n", lookhere);
211 struct runtime_options *runtime_options;
215 main(int argc, char *argv[], char *envp[])
217 #ifdef LISP_FEATURE_WIN32
218 /* Exception handling support structure. Evil Win32 hack. */
219 struct lisp_exception_frame exception_frame;
222 /* the name of the core file we're to execute. Note that this is
223 * a malloc'ed string which should be freed eventually. */
225 char **sbcl_argv = 0;
226 os_vm_offset_t embedded_core_offset = 0;
227 char *runtime_path = 0;
229 /* other command line options */
230 boolean noinform = 0;
231 boolean end_runtime_options = 0;
233 lispobj initial_function;
234 const char *sbcl_home = getenv("SBCL_HOME");
237 block_blockable_signals();
239 setlocale(LC_ALL, "");
241 runtime_options = NULL;
243 /* Check early to see if this executable has an embedded core,
244 * which also populates runtime_options if the core has runtime
246 runtime_path = os_get_runtime_executable_path();
248 os_vm_offset_t offset = search_for_embedded_core(runtime_path);
250 embedded_core_offset = offset;
258 /* Parse our part of the command line (aka "runtime options"),
259 * stripping out those options that we handle. */
260 if (runtime_options != NULL) {
261 dynamic_space_size = runtime_options->dynamic_space_size;
262 thread_control_stack_size = runtime_options->thread_control_stack_size;
267 runtime_options = successful_malloc(sizeof(struct runtime_options));
269 while (argi < argc) {
270 char *arg = argv[argi];
271 if (0 == strcmp(arg, "--script")) {
272 /* This is both a runtime and a toplevel option. As a
273 * runtime option, it is equivalent to --noinform.
274 * This exits, and does not increment argi, so that
275 * TOPLEVEL-INIT sees the option. */
277 end_runtime_options = 1;
279 } else if (0 == strcmp(arg, "--noinform")) {
282 } else if (0 == strcmp(arg, "--core")) {
284 lose("more than one core file specified\n");
288 lose("missing filename for --core argument\n");
290 core = copied_string(argv[argi]);
293 } else if (0 == strcmp(arg, "--help")) {
294 /* I think this is the (or a) usual convention: upon
295 * seeing "--help" we immediately print our help
296 * string and exit, ignoring everything else. */
299 } else if (0 == strcmp(arg, "--version")) {
300 /* As in "--help" case, I think this is expected. */
303 } else if (0 == strcmp(arg, "--dynamic-space-size")) {
306 lose("missing argument for --dynamic-space-size");
308 dynamic_space_size = strtol(argv[argi++], 0, 0) << 20;
310 lose("argument to --dynamic-space-size is not a number");
311 # ifdef MAX_DYNAMIC_SPACE_END
312 if (!((DYNAMIC_SPACE_START < DYNAMIC_SPACE_START+dynamic_space_size) &&
313 (DYNAMIC_SPACE_START+dynamic_space_size <= MAX_DYNAMIC_SPACE_END)))
314 lose("specified --dynamic-space-size too large");
316 } else if (0 == strcmp(arg, "--control-stack-size")) {
319 lose("missing argument for --control-stack-size");
321 thread_control_stack_size = strtol(argv[argi++], 0, 0) << 20;
323 lose("argument to --control-stack-size is not a number");
324 } else if (0 == strcmp(arg, "--debug-environment")) {
326 printf("; Commandline arguments:\n");
328 printf("; %2d: \"%s\"\n", n, argv[n]);
332 printf(";\n; Environment:\n");
334 printf("; %2d: \"%s\"\n", n, ENVIRON[n]);
338 } else if (0 == strcmp(arg, "--end-runtime-options")) {
339 end_runtime_options = 1;
343 /* This option was unrecognized as a runtime option,
344 * so it must be a toplevel option or a user option,
345 * so we must be past the end of the runtime option
350 /* This is where we strip out those options that we handle. We
351 * also take this opportunity to make sure that we don't find
352 * an out-of-place "--end-runtime-options" option. */
354 char *argi0 = argv[argi];
356 /* (argc - argi) for the arguments, one for the binary,
357 and one for the terminating NULL. */
358 sbcl_argv = successful_malloc((2 + argc - argi) * sizeof(char *));
359 sbcl_argv[0] = argv[0];
360 while (argi < argc) {
361 char *arg = argv[argi++];
362 /* If we encounter --end-runtime-options for the first
363 * time after the point where we had to give up on
364 * runtime options, then the point where we had to
365 * give up on runtime options must've been a user
367 if (!end_runtime_options &&
368 0 == strcmp(arg, "--end-runtime-options")) {
369 lose("bad runtime option \"%s\"\n", argi0);
371 sbcl_argv[argj++] = arg;
377 /* Align down to multiple of page_table page size, and to the appropriate
378 * stack alignment. */
379 dynamic_space_size &= ~(PAGE_BYTES-1);
380 thread_control_stack_size &= ~(CONTROL_STACK_ALIGNMENT_BYTES-1);
382 /* Preserve the runtime options for possible future core saving */
383 runtime_options->dynamic_space_size = dynamic_space_size;
384 runtime_options->thread_control_stack_size = thread_control_stack_size;
386 /* KLUDGE: os_vm_page_size is set by os_init(), and on some
387 * systems (e.g. Alpha) arch_init() needs need os_vm_page_size, so
388 * it must follow os_init(). -- WHN 2000-01-26 */
394 /* If no core file was specified, look for one. */
396 core = search_for_core();
399 /* Make sure that SBCL_HOME is set and not the empty string,
400 unless loading an embedded core. */
401 if (!(sbcl_home && *sbcl_home) && embedded_core_offset == 0) {
402 char *envstring, *copied_core, *dir;
403 char *stem = "SBCL_HOME=";
404 copied_core = copied_string(core);
405 dir = dirname(copied_core);
406 envstring = (char *) calloc(strlen(stem) +
410 sprintf(envstring, "%s%s", stem, dir);
415 if (!noinform && embedded_core_offset == 0) {
420 #if defined(SVR4) || defined(__linux__)
424 define_var("nil", NIL, 1);
425 define_var("t", T, 1);
427 enable_lossage_handler();
431 initial_function = load_core_file(core, embedded_core_offset);
432 if (initial_function == NIL) {
433 lose("couldn't find initial function\n");
435 #ifdef LISP_FEATURE_HPUX
436 /* -1 = CLOSURE_FUN_OFFSET, 23 = SIMPLE_FUN_CODE_OFFSET, we are not in LANGUAGE_ASSEMBLY
437 so we cant reach them. */
438 return_from_lisp_stub = (void *) ((char *)*((unsigned long *)
439 ((char *)initial_function + -1)) + 23);
442 gc_initialize_pointers();
444 arch_install_interrupt_handlers();
445 #ifndef LISP_FEATURE_WIN32
446 os_install_interrupt_handlers();
448 /* wos_install_interrupt_handlers(handler); */
449 wos_install_interrupt_handlers(&exception_frame);
452 /* Pass core filename and the processed argv into Lisp. They'll
453 * need to be processed further there, to do locale conversion.
456 posix_argv = sbcl_argv;
458 FSHOW((stderr, "/funcalling initial_function=0x%lx\n",
459 (unsigned long)initial_function));
460 #ifdef LISP_FEATURE_WIN32
462 This is experimental prerelease support for the Windows platform: use\n\
463 at your own risk. \"Your Kitten of Death awaits!\"\n");
467 create_initial_thread(initial_function);
468 lose("CATS. CATS ARE NICE.\n");