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, "--script")) {
239 /* This is both a runtime and a toplevel option. As a
240 * runtime option, it is equivalent to --noinform.
241 * This exits, and does not increment argi, so that
242 * TOPLEVEL-INIT sees the option. */
244 end_runtime_options = 1;
246 } else if (0 == strcmp(arg, "--noinform")) {
249 } else if (0 == strcmp(arg, "--core")) {
251 lose("more than one core file specified\n");
255 lose("missing filename for --core argument\n");
257 core = copied_string(argv[argi]);
260 } else if (0 == strcmp(arg, "--help")) {
261 /* I think this is the (or a) usual convention: upon
262 * seeing "--help" we immediately print our help
263 * string and exit, ignoring everything else. */
266 } else if (0 == strcmp(arg, "--version")) {
267 /* As in "--help" case, I think this is expected. */
270 } else if (0 == strcmp(arg, "--dynamic-space-size")) {
273 lose("missing argument for --dynamic-space-size");
275 dynamic_space_size = strtol(argv[argi++], 0, 0) << 20;
277 lose("argument to --dynamic-space-size is not a number");
278 } else if (0 == strcmp(arg, "--control-stack-size")) {
281 lose("missing argument for --control-stack-size");
283 thread_control_stack_size = strtol(argv[argi++], 0, 0) << 20;
285 lose("argument to --dynamic-space-size is not a number");
286 } else if (0 == strcmp(arg, "--debug-environment")) {
288 printf("; Commandline arguments:\n");
290 printf("; %2d: \"%s\"\n", n, argv[n]);
294 printf(";\n; Environment:\n");
296 printf("; %2d: \"%s\"\n", n, ENVIRON[n]);
300 } else if (0 == strcmp(arg, "--end-runtime-options")) {
301 end_runtime_options = 1;
305 /* This option was unrecognized as a runtime option,
306 * so it must be a toplevel option or a user option,
307 * so we must be past the end of the runtime option
312 /* This is where we strip out those options that we handle. We
313 * also take this opportunity to make sure that we don't find
314 * an out-of-place "--end-runtime-options" option. */
316 char *argi0 = argv[argi];
318 /* (argc - argi) for the arguments, one for the binary,
319 and one for the terminating NULL. */
320 sbcl_argv = successful_malloc((2 + argc - argi) * sizeof(char *));
321 sbcl_argv[0] = argv[0];
322 while (argi < argc) {
323 char *arg = argv[argi++];
324 /* If we encounter --end-runtime-options for the first
325 * time after the point where we had to give up on
326 * runtime options, then the point where we had to
327 * give up on runtime options must've been a user
329 if (!end_runtime_options &&
330 0 == strcmp(arg, "--end-runtime-options")) {
331 lose("bad runtime option \"%s\"\n", argi0);
333 sbcl_argv[argj++] = arg;
339 /* Align down to multiple of page_table page size, and to the appropriate
340 * stack alignment. */
341 dynamic_space_size &= ~(PAGE_BYTES-1);
342 thread_control_stack_size &= ~(CONTROL_STACK_ALIGNMENT_BYTES-1);
344 /* KLUDGE: os_vm_page_size is set by os_init(), and on some
345 * systems (e.g. Alpha) arch_init() needs need os_vm_page_size, so
346 * it must follow os_init(). -- WHN 2000-01-26 */
352 /* If no core file was specified, look for one. */
354 char *runtime_path = os_get_runtime_executable_path();
357 os_vm_offset_t offset = search_for_embedded_core(runtime_path);
360 embedded_core_offset = offset;
364 core = search_for_core();
367 core = search_for_core();
371 /* Make sure that SBCL_HOME is set and not the empty string,
372 unless loading an embedded core. */
373 if (!(sbcl_home && *sbcl_home) && embedded_core_offset == 0) {
374 char *envstring, *copied_core, *dir;
375 char *stem = "SBCL_HOME=";
376 copied_core = copied_string(core);
377 dir = dirname(copied_core);
378 envstring = (char *) calloc(strlen(stem) +
382 sprintf(envstring, "%s%s", stem, dir);
387 if (!noinform && embedded_core_offset == 0) {
392 #if defined(SVR4) || defined(__linux__)
396 define_var("nil", NIL, 1);
397 define_var("t", T, 1);
399 enable_lossage_handler();
403 initial_function = load_core_file(core, embedded_core_offset);
404 if (initial_function == NIL) {
405 lose("couldn't find initial function\n");
408 gc_initialize_pointers();
410 arch_install_interrupt_handlers();
411 #ifndef LISP_FEATURE_WIN32
412 os_install_interrupt_handlers();
414 /* wos_install_interrupt_handlers(handler); */
415 wos_install_interrupt_handlers(&exception_frame);
418 /* Pass core filename and the processed argv into Lisp. They'll
419 * need to be processed further there, to do locale conversion.
422 posix_argv = sbcl_argv;
424 FSHOW((stderr, "/funcalling initial_function=0x%lx\n",
425 (unsigned long)initial_function));
426 #ifdef LISP_FEATURE_WIN32
428 This is experimental prerelease support for the Windows platform: use\n\
429 at your own risk. \"Your Kitten of Death awaits!\"\n");
433 create_initial_thread(initial_function);
434 lose("CATS. CATS ARE NICE.\n");