1 /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2004, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public License
5 * as published by the Free Software Foundation; either version 3 of
6 * the License, or (at your option) any later version.
8 * This library is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
29 #include "libguile/_scm.h"
30 #include "libguile/private-gc.h" /* scm_getenv_int */
31 #include "libguile/libpath.h"
32 #include "libguile/fports.h"
33 #include "libguile/read.h"
34 #include "libguile/eval.h"
35 #include "libguile/throw.h"
36 #include "libguile/alist.h"
37 #include "libguile/dynwind.h"
38 #include "libguile/root.h"
39 #include "libguile/strings.h"
40 #include "libguile/modules.h"
41 #include "libguile/lang.h"
42 #include "libguile/chars.h"
43 #include "libguile/srfi-13.h"
45 #include "libguile/validate.h"
46 #include "libguile/load.h"
47 #include "libguile/fluids.h"
49 #include "libguile/vm.h" /* for load-compiled/vm */
51 #include <sys/types.h>
56 #endif /* HAVE_UNISTD_H */
60 #endif /* HAVE_PWD_H */
67 /* Loading a file, given an absolute filename. */
69 /* Hook to run when we load a file, perhaps to announce the fact somewhere.
70 Applied to the full name of the file. */
71 static SCM
*scm_loc_load_hook
;
73 /* The current reader (a fluid). */
74 static SCM the_reader
= SCM_BOOL_F
;
77 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
79 "Load the file named @var{filename} and evaluate its contents in\n"
80 "the top-level environment. The load paths are not searched;\n"
81 "@var{filename} must either be a full pathname or be a pathname\n"
82 "relative to the current directory. If the variable\n"
83 "@code{%load-hook} is defined, it should be bound to a procedure\n"
84 "that will be called before any code is loaded. See the\n"
85 "documentation for @code{%load-hook} later in this section.")
86 #define FUNC_NAME s_scm_primitive_load
88 SCM hook
= *scm_loc_load_hook
;
90 SCM_VALIDATE_STRING (1, filename
);
91 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
92 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
95 if (!scm_is_false (hook
))
96 scm_call_1 (hook
, filename
);
99 SCM port
= scm_open_file (filename
, scm_from_locale_string ("r"));
100 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
101 scm_i_dynwind_current_load_port (port
);
103 encoding
= scm_i_scan_for_encoding (port
);
105 scm_i_set_port_encoding_x (port
, encoding
);
107 /* The file has no encoding declared. We'll presume Latin-1. */
108 scm_i_set_port_encoding_x (port
, NULL
);
114 /* Lookup and use the current reader to read the next
116 reader
= scm_fluid_ref (the_reader
);
117 if (reader
== SCM_BOOL_F
)
118 form
= scm_read (port
);
120 form
= scm_call_1 (reader
, port
);
122 if (SCM_EOF_OBJECT_P (form
))
125 scm_primitive_eval_x (form
);
129 scm_close_port (port
);
131 return SCM_UNSPECIFIED
;
136 scm_c_primitive_load (const char *filename
)
138 return scm_primitive_load (scm_from_locale_string (filename
));
142 /* Builtin path to scheme library files. */
143 #ifdef SCM_PKGDATA_DIR
144 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
146 "Return the name of the directory where Scheme packages, modules and\n"
147 "libraries are kept. On most Unix systems, this will be\n"
148 "@samp{/usr/local/share/guile}.")
149 #define FUNC_NAME s_scm_sys_package_data_dir
151 return scm_from_locale_string (SCM_PKGDATA_DIR
);
154 #endif /* SCM_PKGDATA_DIR */
156 #ifdef SCM_LIBRARY_DIR
157 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
159 "Return the directory where the Guile Scheme library files are installed.\n"
160 "E.g., may return \"/usr/share/guile/1.3.5\".")
161 #define FUNC_NAME s_scm_sys_library_dir
163 return scm_from_locale_string (SCM_LIBRARY_DIR
);
166 #endif /* SCM_LIBRARY_DIR */
169 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
171 "Return the directory where the Guile site files are installed.\n"
172 "E.g., may return \"/usr/share/guile/site\".")
173 #define FUNC_NAME s_scm_sys_site_dir
175 return scm_from_locale_string (SCM_SITE_DIR
);
178 #endif /* SCM_SITE_DIR */
183 /* Initializing the load path, and searching it. */
185 /* List of names of directories we search for files to load. */
186 static SCM
*scm_loc_load_path
;
188 /* List of extensions we try adding to the filenames. */
189 static SCM
*scm_loc_load_extensions
;
191 /* Like %load-path and %load-extensions, but for compiled files. */
192 static SCM
*scm_loc_load_compiled_path
;
193 static SCM
*scm_loc_load_compiled_extensions
;
195 /* Whether we should try to auto-compile. */
196 static SCM
*scm_loc_load_should_autocompile
;
198 /* The fallback path for autocompilation */
199 static SCM
*scm_loc_compile_fallback_path
;
201 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
202 (SCM path
, SCM tail
),
203 "Parse @var{path}, which is expected to be a colon-separated\n"
204 "string, into a list and return the resulting list with\n"
205 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
207 #define FUNC_NAME s_scm_parse_path
210 SCM sep
= SCM_MAKE_CHAR (';');
212 SCM sep
= SCM_MAKE_CHAR (':');
215 if (SCM_UNBNDP (tail
))
217 return (scm_is_false (path
)
219 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
224 /* Initialize the global variable %load-path, given the value of the
225 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
226 GUILE_LOAD_PATH environment variable. */
228 scm_init_load_path ()
234 #ifdef SCM_LIBRARY_DIR
235 env
= getenv ("GUILE_SYSTEM_PATH");
236 if (env
&& strcmp (env
, "") == 0)
237 /* special-case interpret system-path=="" as meaning no system path instead
241 path
= scm_parse_path (scm_from_locale_string (env
), path
);
243 path
= scm_list_3 (scm_from_locale_string (SCM_LIBRARY_DIR
),
244 scm_from_locale_string (SCM_SITE_DIR
),
245 scm_from_locale_string (SCM_PKGDATA_DIR
));
247 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
248 if (env
&& strcmp (env
, "") == 0)
252 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
254 cpath
= scm_cons (scm_from_locale_string (SCM_CCACHE_DIR
), cpath
);
256 #endif /* SCM_LIBRARY_DIR */
265 #define FALLBACK_DIR \
266 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
268 if ((e
= getenv ("XDG_CACHE_HOME")))
269 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
270 else if ((e
= getenv ("HOME")))
271 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
273 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
274 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
276 #endif /* HAVE_GETPWENT */
281 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
284 env
= getenv ("GUILE_LOAD_PATH");
286 path
= scm_parse_path (scm_from_locale_string (env
), path
);
288 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
290 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
292 *scm_loc_load_path
= path
;
293 *scm_loc_load_compiled_path
= cpath
;
296 SCM scm_listofnullstr
;
298 /* Utility functions for assembling C strings in a buffer.
307 stringbuf_free (void *data
)
309 struct stringbuf
*buf
= (struct stringbuf
*)data
;
314 stringbuf_grow (struct stringbuf
*buf
)
316 size_t ptroff
= buf
->ptr
- buf
->buf
;
318 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
319 buf
->ptr
= buf
->buf
+ ptroff
;
323 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
325 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
326 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
329 /* buffer is too small, double its size and try again.
331 stringbuf_grow (buf
);
332 stringbuf_cat_locale_string (buf
, str
);
336 /* string fits, terminate it and check for embedded '\0'.
338 buf
->ptr
[len
] = '\0';
339 if (strlen (buf
->ptr
) != len
)
340 scm_misc_error (NULL
,
341 "string contains #\\nul character: ~S",
348 stringbuf_cat (struct stringbuf
*buf
, char *str
)
350 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
351 size_t len
= strlen (str
);
354 /* buffer is too small, double its size and try again.
356 stringbuf_grow (buf
);
357 stringbuf_cat (buf
, str
);
361 /* string fits, copy it into buffer.
363 strcpy (buf
->ptr
, str
);
370 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
372 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
377 ext
= scm_to_locale_string (SCM_CAR (extensions
));
378 extlen
= strlen (ext
);
379 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
380 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
388 /* Search PATH for a directory containing a file named FILENAME.
389 The file must be readable, and not a directory.
390 If we find one, return its full filename; otherwise, return #f.
391 If FILENAME is absolute, return it unchanged.
392 If given, EXTENSIONS is a list of strings; for each directory
393 in PATH, we search for FILENAME concatenated with each EXTENSION. */
394 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
395 (SCM path
, SCM filename
, SCM rest
),
396 "Search @var{path} for a directory containing a file named\n"
397 "@var{filename}. The file must be readable, and not a directory.\n"
398 "If we find one, return its full filename; otherwise, return\n"
399 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
400 "If given, @var{extensions} is a list of strings; for each\n"
401 "directory in @var{path}, we search for @var{filename}\n"
402 "concatenated with each @var{extension}.")
403 #define FUNC_NAME s_scm_search_path
405 struct stringbuf buf
;
406 char *filename_chars
;
408 SCM extensions
, require_exts
;
409 SCM result
= SCM_BOOL_F
;
411 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
413 /* Called either by Scheme code that didn't provide the optional
414 arguments, or C code that used the Guile 1.8 signature (2 required,
415 1 optional arg) and passed '() or nothing as the EXTENSIONS
417 extensions
= SCM_EOL
;
418 require_exts
= SCM_UNDEFINED
;
422 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
424 /* Called by Scheme code written for 1.9. */
425 extensions
= SCM_CAR (rest
);
426 if (scm_is_null (SCM_CDR (rest
)))
427 require_exts
= SCM_UNDEFINED
;
430 require_exts
= SCM_CADR (rest
);
431 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
432 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
437 /* Called by C code that uses the 1.8 signature, i.e., which
438 expects the 3rd argument to be EXTENSIONS. */
440 require_exts
= SCM_UNDEFINED
;
444 if (SCM_UNBNDP (extensions
))
445 extensions
= SCM_EOL
;
447 SCM_VALIDATE_LIST (3, extensions
);
449 if (SCM_UNBNDP (require_exts
))
450 require_exts
= SCM_BOOL_F
;
452 scm_dynwind_begin (0);
454 filename_chars
= scm_to_locale_string (filename
);
455 filename_len
= strlen (filename_chars
);
456 scm_dynwind_free (filename_chars
);
458 /* If FILENAME is absolute, return it unchanged. */
460 if (((filename_len
>= 1) &&
461 (filename_chars
[0] == '/' || filename_chars
[0] == '\\')) ||
462 ((filename_len
>= 3) && filename_chars
[1] == ':' &&
463 ((filename_chars
[0] >= 'a' && filename_chars
[0] <= 'z') ||
464 (filename_chars
[0] >= 'A' && filename_chars
[0] <= 'Z')) &&
465 (filename_chars
[2] == '/' || filename_chars
[2] == '\\')))
467 if (filename_len
>= 1 && filename_chars
[0] == '/')
471 if (scm_is_true (require_exts
) &&
472 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
480 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
484 for (endp
= filename_chars
+ filename_len
- 1;
485 endp
>= filename_chars
;
490 if (scm_is_true (require_exts
) &&
491 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
494 /* This filename has an extension, but not one of the right
499 /* This filename already has an extension, so cancel the
500 list of extensions. */
501 extensions
= SCM_EOL
;
505 else if (*endp
== '/' || *endp
== '\\')
507 else if (*endp
== '/')
509 /* This filename has no extension, so keep the current list
515 /* This simplifies the loop below a bit.
517 if (scm_is_null (extensions
))
518 extensions
= scm_listofnullstr
;
521 buf
.buf
= scm_malloc (buf
.buf_len
);
522 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
524 /* Try every path element.
526 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
528 SCM dir
= SCM_CAR (path
);
533 stringbuf_cat_locale_string (&buf
, dir
);
535 /* Concatenate the path name and the filename. */
538 if ((buf
.ptr
> buf
.buf
) && (buf
.ptr
[-1] != '/') && (buf
.ptr
[-1] != '\\'))
540 if ((buf
.ptr
> buf
.buf
) && (buf
.ptr
[-1] != '/'))
542 stringbuf_cat (&buf
, "/");
544 stringbuf_cat (&buf
, filename_chars
);
545 sans_ext_len
= buf
.ptr
- buf
.buf
;
547 /* Try every extension. */
548 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
550 SCM ext
= SCM_CAR (exts
);
553 buf
.ptr
= buf
.buf
+ sans_ext_len
;
554 stringbuf_cat_locale_string (&buf
, ext
);
556 /* If the file exists at all, we should return it. If the
557 file is inaccessible, then that's an error. */
559 if (stat (buf
.buf
, &mode
) == 0
560 && ! (mode
.st_mode
& S_IFDIR
))
562 result
= scm_from_locale_string (buf
.buf
);
567 if (!SCM_NULL_OR_NIL_P (exts
))
568 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
571 if (!SCM_NULL_OR_NIL_P (path
))
572 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
581 /* Search %load-path for a directory containing a file named FILENAME.
582 The file must be readable, and not a directory.
583 If we find one, return its full filename; otherwise, return #f.
584 If FILENAME is absolute, return it unchanged. */
585 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
587 "Search @var{%load-path} for the file named @var{filename},\n"
588 "which must be readable by the current user. If @var{filename}\n"
589 "is found in the list of paths to search or is an absolute\n"
590 "pathname, return its full pathname. Otherwise, return\n"
591 "@code{#f}. Filenames may have any of the optional extensions\n"
592 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
593 "will try each extension automatically.")
594 #define FUNC_NAME s_scm_sys_search_load_path
596 SCM path
= *scm_loc_load_path
;
597 SCM exts
= *scm_loc_load_extensions
;
598 SCM_VALIDATE_STRING (1, filename
);
600 if (scm_ilength (path
) < 0)
601 SCM_MISC_ERROR ("%load-path is not a proper list", SCM_EOL
);
602 if (scm_ilength (exts
) < 0)
603 SCM_MISC_ERROR ("%load-extension list is not a proper list", SCM_EOL
);
604 return scm_search_path (path
, filename
, exts
);
610 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
)
612 char *source
, *compiled
;
613 struct stat stat_source
, stat_compiled
;
616 source
= scm_to_locale_string (full_filename
);
617 compiled
= scm_to_locale_string (compiled_filename
);
619 if (stat (source
, &stat_source
) == 0
620 && stat (compiled
, &stat_compiled
) == 0
621 && stat_source
.st_mtime
== stat_compiled
.st_mtime
)
627 scm_puts (";;; note: source file ", scm_current_error_port ());
628 scm_puts (source
, scm_current_error_port ());
629 scm_puts ("\n;;; newer than compiled ", scm_current_error_port ());
630 scm_puts (compiled
, scm_current_error_port ());
631 scm_puts ("\n", scm_current_error_port ());
640 SCM_KEYWORD (kw_env
, "env");
643 do_try_autocompile (void *data
)
645 SCM source
= PTR2SCM (data
);
646 SCM comp_mod
, compile_file
;
648 scm_puts (";;; compiling ", scm_current_error_port ());
649 scm_display (source
, scm_current_error_port ());
650 scm_newline (scm_current_error_port ());
652 comp_mod
= scm_c_resolve_module ("system base compile");
653 compile_file
= scm_module_variable
654 (comp_mod
, scm_from_locale_symbol ("compile-file"));
656 if (scm_is_true (compile_file
))
658 /* Auto-compile in the context of the current module. */
659 SCM res
= scm_call_3 (scm_variable_ref (compile_file
), source
,
660 kw_env
, scm_current_module ());
661 scm_puts (";;; compiled ", scm_current_error_port ());
662 scm_display (res
, scm_current_error_port ());
663 scm_newline (scm_current_error_port ());
668 scm_puts (";;; it seems ", scm_current_error_port ());
669 scm_display (source
, scm_current_error_port ());
670 scm_puts ("\n;;; is part of the compiler; skipping autocompilation\n",
671 scm_current_error_port ());
677 autocompile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
679 SCM source
= PTR2SCM (data
);
680 scm_puts (";;; WARNING: compilation of ", scm_current_error_port ());
681 scm_display (source
, scm_current_error_port ());
682 scm_puts (" failed:\n", scm_current_error_port ());
683 scm_puts (";;; key ", scm_current_error_port ());
684 scm_write (tag
, scm_current_error_port ());
685 scm_puts (", throw args ", scm_current_error_port ());
686 scm_write (throw_args
, scm_current_error_port ());
687 scm_newline (scm_current_error_port ());
691 SCM_DEFINE (scm_sys_warn_autocompilation_enabled
, "%warn-autocompilation-enabled", 0, 0, 0,
693 #define FUNC_NAME s_scm_sys_warn_autocompilation_enabled
695 static int message_shown
= 0;
699 scm_puts (";;; note: autocompilation is enabled, set GUILE_AUTO_COMPILE=0\n"
700 ";;; or pass the --no-autocompile argument to disable.\n",
701 scm_current_error_port ());
705 return SCM_UNSPECIFIED
;
710 scm_try_autocompile (SCM source
)
712 if (scm_is_false (*scm_loc_load_should_autocompile
))
715 scm_sys_warn_autocompilation_enabled ();
716 return scm_c_catch (SCM_BOOL_T
,
719 autocompile_catch_handler
,
724 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
726 "Search @var{%load-path} for the file named @var{filename} and\n"
727 "load it into the top-level environment. If @var{filename} is a\n"
728 "relative pathname and is not found in the list of search paths,\n"
729 "an error is signalled, unless the optional argument\n"
730 "@var{exception_on_not_found} is @code{#f}, in which case\n"
731 "@code{#f} is returned instead.")
732 #define FUNC_NAME s_scm_primitive_load_path
734 SCM filename
, exception_on_not_found
;
735 SCM full_filename
, compiled_filename
;
736 int compiled_is_fallback
= 0;
738 if (scm_is_string (args
))
740 /* C code written for 1.8 and earlier expects this function to take a
741 single argument (the file name). */
743 exception_on_not_found
= SCM_UNDEFINED
;
747 /* Starting from 1.9, this function takes 1 required and 1 optional
751 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
752 if (len
< 1 || len
> 2)
753 scm_error_num_args_subr (FUNC_NAME
);
755 filename
= SCM_CAR (args
);
756 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
758 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
761 if (SCM_UNBNDP (exception_on_not_found
))
762 exception_on_not_found
= SCM_BOOL_T
;
764 full_filename
= scm_sys_search_load_path (filename
);
766 scm_search_path (*scm_loc_load_compiled_path
,
768 scm_list_2 (*scm_loc_load_compiled_extensions
,
771 if (scm_is_false (compiled_filename
)
772 && scm_is_true (full_filename
)
773 && scm_is_true (*scm_loc_compile_fallback_path
)
774 && scm_is_pair (*scm_loc_load_compiled_extensions
)
775 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
777 SCM fallback
= scm_string_append
778 (scm_list_3 (*scm_loc_compile_fallback_path
,
780 scm_car (*scm_loc_load_compiled_extensions
)));
781 if (scm_is_true (scm_stat (fallback
, SCM_BOOL_F
)))
783 compiled_filename
= fallback
;
784 compiled_is_fallback
= 1;
788 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
790 if (scm_is_true (exception_on_not_found
))
791 SCM_MISC_ERROR ("Unable to find file ~S in load path",
792 scm_list_1 (filename
));
797 if (scm_is_false (full_filename
)
798 || (scm_is_true (compiled_filename
)
799 && compiled_is_fresh (full_filename
, compiled_filename
)))
800 return scm_load_compiled_with_vm (compiled_filename
);
802 /* Perhaps there was the installed .go that was stale, but our fallback is
803 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
805 if (!compiled_is_fallback
806 && scm_is_true (*scm_loc_compile_fallback_path
)
807 && scm_is_pair (*scm_loc_load_compiled_extensions
)
808 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
810 SCM fallback
= scm_string_append
811 (scm_list_3 (*scm_loc_compile_fallback_path
,
813 scm_car (*scm_loc_load_compiled_extensions
)));
814 if (scm_is_true (scm_stat (fallback
, SCM_BOOL_F
))
815 && compiled_is_fresh (full_filename
, fallback
))
817 scm_puts (";;; found fresh local cache at ", scm_current_error_port ());
818 scm_display (fallback
, scm_current_error_port ());
819 scm_newline (scm_current_error_port ());
820 return scm_load_compiled_with_vm (fallback
);
824 /* Otherwise, we bottom out here. */
826 SCM freshly_compiled
= scm_try_autocompile (full_filename
);
828 if (scm_is_true (freshly_compiled
))
829 return scm_load_compiled_with_vm (freshly_compiled
);
831 return scm_primitive_load (full_filename
);
837 scm_c_primitive_load_path (const char *filename
)
839 return scm_primitive_load_path (scm_from_locale_string (filename
));
843 scm_init_eval_in_scheme (void)
845 SCM eval_scm
, eval_go
;
846 eval_scm
= scm_search_path (*scm_loc_load_path
,
847 scm_from_locale_string ("ice-9/eval.scm"),
849 eval_go
= scm_search_path (*scm_loc_load_compiled_path
,
850 scm_from_locale_string ("ice-9/eval.go"),
853 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
854 && compiled_is_fresh (eval_scm
, eval_go
))
855 scm_load_compiled_with_vm (eval_go
);
857 /* if we have no eval.go, we shouldn't load any compiled code at all */
858 *scm_loc_load_compiled_path
= SCM_EOL
;
862 /* Information about the build environment. */
864 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
865 scm_from_locale_string (HOST_TYPE
));
868 /* Initialize the scheme variable %guile-build-info, based on data
869 provided by the Makefile, via libpath.h. */
873 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
874 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
877 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
879 SCM key
= scm_from_locale_symbol (info
[i
].name
);
880 SCM val
= scm_from_locale_string (info
[i
].value
);
881 *loc
= scm_acons (key
, val
, *loc
);
889 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
890 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
891 scm_loc_load_extensions
892 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
893 scm_list_2 (scm_from_locale_string (".scm"),
895 scm_loc_load_compiled_path
896 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
897 scm_loc_load_compiled_extensions
898 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
899 scm_list_1 (scm_from_locale_string (".go"))));
900 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
902 scm_loc_compile_fallback_path
903 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
906 SCM autocomp
= scm_from_bool (scm_getenv_int ("GUILE_AUTO_COMPILE", 1));
907 scm_loc_load_should_autocompile
908 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-autocompile", autocomp
));
911 the_reader
= scm_make_fluid ();
912 scm_fluid_set_x (the_reader
, SCM_BOOL_F
);
913 scm_c_define("current-reader", the_reader
);
915 scm_c_define ("load-compiled",
916 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
917 scm_load_compiled_with_vm
));
921 #include "libguile/load.x"