* files for more information.
*/
+#include "sbcl.h"
+
#include <stdio.h>
#include <string.h>
+#include <libgen.h>
#include <sys/types.h>
+#include <sys/wait.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/file.h>
#include <sys/param.h>
#include <sys/stat.h>
+#include <signal.h>
+#include <sched.h>
+#include <errno.h>
#if defined(SVR4) || defined(__linux__)
#include <time.h>
#include "signal.h"
#include "runtime.h"
-#include "sbcl.h"
#include "alloc.h"
#include "vars.h"
#include "globals.h"
#include "core.h"
#include "save.h"
#include "lispregs.h"
+#include "thread.h"
+
+#include "genesis/static-symbols.h"
+#include "genesis/symbol.h"
+
#ifdef irix
#include <string.h>
#include "interr.h"
#endif
+
+#ifndef SBCL_HOME
+#define SBCL_HOME "/usr/local/lib/sbcl/"
+#endif
+
\f
/* SIGINT handler that invokes the monitor (for when Lisp isn't up to it) */
static void
}
/* Convert a null-terminated array of null-terminated strings (e.g.
- * argv or envp) into a Lisp list of Lisp strings. */
+ * argv or envp) into a Lisp list of Lisp base-strings. */
static lispobj
-alloc_string_list(char *array_ptr[])
+alloc_base_string_list(char *array_ptr[])
{
if (*array_ptr) {
- return alloc_cons(alloc_string(*array_ptr),
- alloc_string_list(1 + array_ptr));
+ return alloc_cons(alloc_base_string(*array_ptr),
+ alloc_base_string_list(1 + array_ptr));
} else {
return NIL;
}
printf(
"This is SBCL %s, an implementation of ANSI Common Lisp.\n\
\n\
-SBCL is derived from the CMU CL system created at Carnegie Mellon University.\n\
-Besides software and documentation originally created at Carnegie Mellon\n\
-University, SBCL contains some software originally from the Massachusetts\n\
-Institute of Technology, Symbolics Incorporated, and Xerox Corporation, and\n\
-material contributed by volunteers since the release of CMU CL into the\n\
-public domain. See the CREDITS file in the distribution for more information.\n\
+More information about SBCL is available at <http://www.sbcl.org/>.\
\n\
-SBCL is a free software system, provided as is, with absolutely no warranty.\n\
-It is mostly in the public domain, but also includes some software copyrighted\n\
- Massachusetts Institute of Technology, 1986;\n\
- Symbolics, Inc., 1989, 1990, 1991, 1992; and\n\
- Xerox Corporation, 1985, 1986, 1987, 1988, 1989, 1990\n\
-used under BSD-style licenses allowing copying only under certain conditions.\n\
-See the COPYING file in the distribution for more information.\n\
-\n\
-More information about SBCL is available at <http://sbcl.sourceforge.net/>.\n\
+SBCL is free software, provided as is, with absolutely no warranty.\n\
+It is mostly in the public domain; some portions are provided under\n\
+BSD-style licenses. See the CREDITS and COPYING files in the\n\
+distribution for more information.\n\
", SBCL_VERSION_STRING);
}
\f
+FILE *stdlog;
+
+\f
int
main(int argc, char *argv[], char *envp[])
{
/* If no core file was specified, look for one. */
if (!core) {
char *sbcl_home = getenv("SBCL_HOME");
- if (sbcl_home) {
- char *lookhere;
- char *stem = "/sbcl.core";
- lookhere = (char *) calloc(strlen(sbcl_home) +
- strlen(stem) +
- 1,
- sizeof(char));
- sprintf(lookhere, "%s%s", sbcl_home, stem);
- core = copied_existing_filename_or_null(lookhere);
- free(lookhere);
- } else {
- core = copied_existing_filename_or_null("/usr/lib/sbcl.core");
- if (!core) {
- core =
- copied_existing_filename_or_null("/usr/local/lib/sbcl.core");
- }
- }
+ char *lookhere;
+ char *stem = "/sbcl.core";
+ if(!sbcl_home) sbcl_home = SBCL_HOME;
+ lookhere = (char *) calloc(strlen(sbcl_home) +
+ strlen(stem) +
+ 1,
+ sizeof(char));
+ sprintf(lookhere, "%s%s", sbcl_home, stem);
+ core = copied_existing_filename_or_null(lookhere);
+ free(lookhere);
if (!core) {
lose("can't find core file");
}
}
-
+ /* Make sure that SBCL_HOME is set, no matter where the core was
+ * found */
+ if (!getenv("SBCL_HOME")) {
+ char *envstring, *copied_core, *dir;
+ char *stem = "SBCL_HOME=";
+ copied_core = copied_string(core);
+ dir = dirname(copied_core);
+ envstring = (char *) calloc(strlen(stem) +
+ strlen(dir) +
+ 1,
+ sizeof(char));
+ sprintf(envstring, "%s%s", stem, dir);
+ putenv(envstring);
+ free(copied_core);
+ }
+
if (!noinform) {
print_banner();
fflush(stdout);
}
-#ifdef MACH
- mach_init();
-#endif
#if defined(SVR4) || defined(__linux__)
tzset();
#endif
gc_initialize_pointers();
-#ifdef BINDING_STACK_POINTER
- SetSymbolValue(BINDING_STACK_POINTER, BINDING_STACK_START);
-#endif
-
interrupt_init();
-
arch_install_interrupt_handlers();
os_install_interrupt_handlers();
-#ifdef PSEUDO_ATOMIC_ATOMIC
- /* Turn on pseudo atomic for when we call into Lisp. */
- SHOW("turning on pseudo atomic");
- SetSymbolValue(PSEUDO_ATOMIC_ATOMIC, make_fixnum(1));
- SetSymbolValue(PSEUDO_ATOMIC_INTERRUPTED, make_fixnum(0));
-#endif
-
/* Convert remaining argv values to something that Lisp can grok. */
SHOW("setting POSIX-ARGV symbol value");
- SetSymbolValue(POSIX_ARGV, alloc_string_list(argv));
+ SetSymbolValue(POSIX_ARGV, alloc_base_string_list(argv),0);
/* Install a handler to pick off SIGINT until the Lisp system gets
* far enough along to install its own handler. */
sigint_init();
FSHOW((stderr, "/funcalling initial_function=0x%lx\n", initial_function));
- funcall0(initial_function);
+ create_thread(initial_function);
+ /* in a unithread build, create_thread never returns */
+#ifdef LISP_FEATURE_SB_THREAD
+ parent_loop();
+#endif
+}
+
+#ifdef LISP_FEATURE_SB_THREAD
- /* initial_function() is not supposed to return. */
- lose("Lisp initial_function gave up control.");
- return 0; /* dummy value: return something */
+/* this is being pared down as time goes on; eventually we want to get
+ * to the point that we have no parent loop at all and the parent
+ * thread runs Lisp just like any other */
+
+static void /* noreturn */ parent_loop(void)
+{
+ struct sigaction sa;
+ sigset_t sigset;
+ int status;
+ pid_t pid=0;
+
+ sigemptyset(&sigset);
+ sa.sa_handler=SIG_IGN;
+ sa.sa_mask=sigset;
+ sa.sa_flags=0;
+ sigaction(SIGINT, &sa, 0); /* ^c should go to the lisp thread instead */
+ sigaction(SIG_THREAD_EXIT, &sa, 0);
+ sigaction(SIGCHLD, &sa, 0);
+
+ while(!all_threads) {
+ sched_yield();
+ }
+ while(all_threads && (pid=waitpid(-1,&status,__WALL))) {
+ struct thread *th;
+ if(pid==-1) {
+ if(errno == EINTR) continue;
+ fprintf(stderr,"waitpid: %s\n",strerror(errno));
+ }
+ else if(WIFEXITED(status) || WIFSIGNALED(status)) {
+ th=find_thread_by_pid(pid);
+ if(!th) continue;
+ destroy_thread(th);
+ if(!all_threads) break;
+ }
+ }
+ exit(WEXITSTATUS(status));
}
+#endif