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/"
74 /* SIGINT handler that invokes the monitor (for when Lisp isn't up to it) */
76 sigint_handler(int signal, siginfo_t *info, void *void_context)
78 lose("\nSIGINT hit at 0x%08lX\n",
79 (unsigned long) *os_context_pc_addr(void_context));
82 /* (This is not static, because we want to be able to call it from
87 SHOW("entering sigint_init()");
88 install_handler(SIGINT, sigint_handler);
89 SHOW("leaving sigint_init()");
93 * helper functions for dealing with command line args
97 successful_malloc(size_t size)
99 void* result = malloc(size);
101 lose("malloc failure\n");
105 return (void *) NULL; /* dummy value: return something ... */
109 copied_string(char *string)
111 return strcpy(successful_malloc(1+strlen(string)), string);
115 copied_existing_filename_or_null(char *filename)
117 struct stat filename_stat;
118 if (stat(filename, &filename_stat)) { /* if failure */
121 return copied_string(filename);
125 /* miscellaneous chattiness */
131 "Usage: sbcl [runtime-options] [toplevel-options] [user-options]\n\
132 Common runtime options:\n\
133 --help Print this message and exit.\n\
134 --version Print version information and exit.\n\
135 --core <filename> Use the specified core file instead of the default.\n\
136 --dynamic-space-size <MiB> Size of reserved dynamic space in megabytes.\n\
137 --control-stack-size <MiB> Size of reserved control stack in megabytes.\n\
139 Common toplevel options:\n\
140 --sysinit <filename> System-wide init-file to use instead of default.\n\
141 --userinit <filename> Per-user init-file to use instead of default.\n\
142 --no-sysinit Inhibit processing of any system-wide init-file.\n\
143 --no-userinit Inhibit processing of any per-user init-file.\n\
145 User options are not processed by SBCL. All runtime options must\n\
146 appear before toplevel options, and all toplevel options must\n\
147 appear before user options.\n\
149 For more information please refer to the SBCL User Manual, which\n\
150 should be installed along with SBCL, and is also available from the\n\
151 website <http://www.sbcl.org/>.\n");
157 printf("SBCL %s\n", SBCL_VERSION_STRING);
164 "This is SBCL %s, an implementation of ANSI Common Lisp.\n\
165 More information about SBCL is available at <http://www.sbcl.org/>.\n\
167 SBCL is free software, provided as is, with absolutely no warranty.\n\
168 It is mostly in the public domain; some portions are provided under\n\
169 BSD-style licenses. See the CREDITS and COPYING files in the\n\
170 distribution for more information.\n\
171 ", SBCL_VERSION_STRING);
174 /* Look for a core file to load, first in the directory named by the
175 * SBCL_HOME environment variable, then in a hardcoded default
176 * location. Returns a malloced copy of the core filename. */
180 char *sbcl_home = getenv("SBCL_HOME");
182 char *stem = "/sbcl.core";
185 if (!(sbcl_home && *sbcl_home)) sbcl_home = SBCL_HOME;
186 lookhere = (char *) calloc(strlen(sbcl_home) +
190 sprintf(lookhere, "%s%s", sbcl_home, stem);
191 core = copied_existing_filename_or_null(lookhere);
194 lose("can't find core file at %s\n", lookhere);
207 main(int argc, char *argv[], char *envp[])
209 #ifdef LISP_FEATURE_WIN32
210 /* Exception handling support structure. Evil Win32 hack. */
211 struct lisp_exception_frame exception_frame;
214 /* the name of the core file we're to execute. Note that this is
215 * a malloc'ed string which should be freed eventually. */
217 char **sbcl_argv = 0;
218 os_vm_offset_t embedded_core_offset = 0;
220 /* other command line options */
221 boolean noinform = 0;
222 boolean end_runtime_options = 0;
224 lispobj initial_function;
225 const char *sbcl_home = getenv("SBCL_HOME");
228 block_blockable_signals();
230 setlocale(LC_ALL, "");
232 /* Parse our part of the command line (aka "runtime options"),
233 * stripping out those options that we handle. */
236 while (argi < argc) {
237 char *arg = argv[argi];
238 if (0 == strcmp(arg, "--noinform")) {
241 } else if (0 == strcmp(arg, "--core")) {
243 lose("more than one core file specified\n");
247 lose("missing filename for --core argument\n");
249 core = copied_string(argv[argi]);
252 } else if (0 == strcmp(arg, "--help")) {
253 /* I think this is the (or a) usual convention: upon
254 * seeing "--help" we immediately print our help
255 * string and exit, ignoring everything else. */
258 } else if (0 == strcmp(arg, "--version")) {
259 /* As in "--help" case, I think this is expected. */
262 } else if (0 == strcmp(arg, "--dynamic-space-size")) {
265 lose("missing argument for --dynamic-space-size");
267 dynamic_space_size = strtol(argv[argi++], 0, 0) << 20;
269 lose("argument to --dynamic-space-size is not a number");
270 } else if (0 == strcmp(arg, "--control-stack-size")) {
273 lose("missing argument for --control-stack-size");
275 thread_control_stack_size = strtol(argv[argi++], 0, 0) << 20;
277 lose("argument to --dynamic-space-size is not a number");
278 } else if (0 == strcmp(arg, "--debug-environment")) {
280 printf("; Commandline arguments:\n");
282 printf("; %2d: \"%s\"\n", n, argv[n]);
286 printf(";\n; Environment:\n");
288 printf("; %2d: \"%s\"\n", n, ENVIRON[n]);
292 } else if (0 == strcmp(arg, "--end-runtime-options")) {
293 end_runtime_options = 1;
297 /* This option was unrecognized as a runtime option,
298 * so it must be a toplevel option or a user option,
299 * so we must be past the end of the runtime option
304 /* This is where we strip out those options that we handle. We
305 * also take this opportunity to make sure that we don't find
306 * an out-of-place "--end-runtime-options" option. */
308 char *argi0 = argv[argi];
310 /* (argc - argi) for the arguments, one for the binary,
311 and one for the terminating NULL. */
312 sbcl_argv = successful_malloc((2 + argc - argi) * sizeof(char *));
313 sbcl_argv[0] = argv[0];
314 while (argi < argc) {
315 char *arg = argv[argi++];
316 /* If we encounter --end-runtime-options for the first
317 * time after the point where we had to give up on
318 * runtime options, then the point where we had to
319 * give up on runtime options must've been a user
321 if (!end_runtime_options &&
322 0 == strcmp(arg, "--end-runtime-options")) {
323 lose("bad runtime option \"%s\"\n", argi0);
325 sbcl_argv[argj++] = arg;
331 /* Align down to multiple of page_table page size, and to the appropriate
332 * stack alignment. */
333 dynamic_space_size &= ~(PAGE_BYTES-1);
334 thread_control_stack_size &= ~(CONTROL_STACK_ALIGNMENT_BYTES-1);
336 /* KLUDGE: os_vm_page_size is set by os_init(), and on some
337 * systems (e.g. Alpha) arch_init() needs need os_vm_page_size, so
338 * it must follow os_init(). -- WHN 2000-01-26 */
344 /* If no core file was specified, look for one. */
346 char *runtime_path = os_get_runtime_executable_path();
349 os_vm_offset_t offset = search_for_embedded_core(runtime_path);
352 embedded_core_offset = offset;
356 core = search_for_core();
359 core = search_for_core();
363 /* Make sure that SBCL_HOME is set and not the empty string,
364 unless loading an embedded core. */
365 if (!(sbcl_home && *sbcl_home) && embedded_core_offset == 0) {
366 char *envstring, *copied_core, *dir;
367 char *stem = "SBCL_HOME=";
368 copied_core = copied_string(core);
369 dir = dirname(copied_core);
370 envstring = (char *) calloc(strlen(stem) +
374 sprintf(envstring, "%s%s", stem, dir);
379 if (!noinform && embedded_core_offset == 0) {
384 #if defined(SVR4) || defined(__linux__)
388 define_var("nil", NIL, 1);
389 define_var("t", T, 1);
391 enable_lossage_handler();
395 initial_function = load_core_file(core, embedded_core_offset);
396 if (initial_function == NIL) {
397 lose("couldn't find initial function\n");
400 gc_initialize_pointers();
402 arch_install_interrupt_handlers();
403 #ifndef LISP_FEATURE_WIN32
404 os_install_interrupt_handlers();
406 /* wos_install_interrupt_handlers(handler); */
407 wos_install_interrupt_handlers(&exception_frame);
410 /* Pass core filename and the processed argv into Lisp. They'll
411 * need to be processed further there, to do locale conversion.
414 posix_argv = sbcl_argv;
416 FSHOW((stderr, "/funcalling initial_function=0x%lx\n",
417 (unsigned long)initial_function));
418 #ifdef LISP_FEATURE_WIN32
420 This is experimental prerelease support for the Windows platform: use\n\
421 at your own risk. \"Your Kitten of Death awaits!\"\n");
425 create_initial_thread(initial_function);
426 lose("CATS. CATS ARE NICE.\n");