2 * 'sparse' library helper routines.
4 * Copyright (C) 2003 Transmeta Corp.
5 * 2003-2004 Linus Torvalds
7 * Licensed under the Open Software License version 1.1
19 #include <sys/types.h>
26 #include "expression.h"
28 #include "linearize.h"
31 int verbose
, optimize
, optimize_size
, preprocessing
;
36 # define __GNUC_MINOR__ 95
37 # define __GNUC_PATCHLEVEL__ 0
40 int gcc_major
= __GNUC__
;
41 int gcc_minor
= __GNUC_MINOR__
;
42 int gcc_patchlevel
= __GNUC_PATCHLEVEL__
;
44 static const char *gcc_base_dir
= GCC_BASE
;
46 struct token
*skip_to(struct token
*token
, int op
)
48 while (!match_op(token
, op
) && !eof_token(token
))
53 struct token
*expect(struct token
*token
, int op
, const char *where
)
55 if (!match_op(token
, op
)) {
56 static struct token bad_token
;
57 if (token
!= &bad_token
) {
58 bad_token
.next
= token
;
59 sparse_error(token
->pos
, "Expected %s %s", show_special(op
), where
);
60 sparse_error(token
->pos
, "got %s", show_token(token
));
63 return skip_to(token
, op
);
69 unsigned int hexval(unsigned int c
)
77 retval
= c
- 'a' + 10;
80 retval
= c
- 'A' + 10;
86 static void do_warn(const char *type
, struct position pos
, const char * fmt
, va_list args
)
88 static char buffer
[512];
91 vsprintf(buffer
, fmt
, args
);
92 name
= stream_name(pos
.stream
);
94 fprintf(stderr
, "%s:%d:%d: %s%s\n",
95 name
, pos
.line
, pos
.pos
, type
, buffer
);
98 static int max_warnings
= 100;
99 static int show_info
= 1;
101 void info(struct position pos
, const char * fmt
, ...)
108 do_warn("", pos
, fmt
, args
);
112 void warning(struct position pos
, const char * fmt
, ...)
121 if (!--max_warnings
) {
123 fmt
= "too many warnings";
127 do_warn("warning: ", pos
, fmt
, args
);
131 static void do_error(struct position pos
, const char * fmt
, va_list args
)
133 static int errors
= 0;
136 /* Shut up warnings after an error */
143 fmt
= "too many errors";
147 do_warn("error: ", pos
, fmt
, args
);
151 void sparse_error(struct position pos
, const char * fmt
, ...)
155 do_error(pos
, fmt
, args
);
159 void expression_error(struct expression
*expr
, const char *fmt
, ...)
163 do_error(expr
->pos
, fmt
, args
);
165 expr
->ctype
= &bad_ctype
;
168 void error_die(struct position pos
, const char * fmt
, ...)
172 do_warn("error: ", pos
, fmt
, args
);
177 void die(const char *fmt
, ...)
180 static char buffer
[512];
183 vsnprintf(buffer
, sizeof(buffer
), fmt
, args
);
186 fprintf(stderr
, "%s\n", buffer
);
190 static struct token
*pre_buffer_begin
= NULL
;
191 static struct token
*pre_buffer_end
= NULL
;
193 int Waddress_space
= 1;
196 int Wcast_truncate
= 1;
199 int Wdefault_bitfield_sign
= 0;
201 int Wenum_mismatch
= 1;
202 int Wnon_pointer_null
= 1;
203 int Wold_initializer
= 1;
204 int Wone_bit_signed_bitfield
= 1;
205 int Wparen_string
= 0;
206 int Wptr_subtraction_blows
= 0;
207 int Wreturn_void
= 0;
209 int Wtransparent_union
= 1;
212 int Wuninitialized
= 1;
213 int Wdeclarationafterstatement
= -1;
220 static enum { STANDARD_C89
,
224 STANDARD_GNU99
, } standard
= STANDARD_GNU89
;
226 #define CMDLINE_INCLUDE 20
227 int cmdline_include_nr
= 0;
228 struct cmdline_include cmdline_include
[CMDLINE_INCLUDE
];
231 void add_pre_buffer(const char *fmt
, ...)
235 struct token
*begin
, *end
;
239 size
= vsnprintf(buffer
, sizeof(buffer
), fmt
, args
);
241 begin
= tokenize_buffer(buffer
, size
, &end
);
242 if (!pre_buffer_begin
)
243 pre_buffer_begin
= begin
;
245 pre_buffer_end
->next
= begin
;
246 pre_buffer_end
= end
;
249 static char **handle_switch_D(char *arg
, char **next
)
251 const char *name
= arg
+ 1;
252 const char *value
= "1";
254 if (!*name
|| isspace(*name
))
255 die("argument to `-D' is missing");
262 if (isspace((unsigned char)c
) || c
== '=') {
268 add_pre_buffer("#define %s %s\n", name
, value
);
272 static char **handle_switch_E(char *arg
, char **next
)
279 static char **handle_switch_I(char *arg
, char **next
)
285 add_pre_buffer("#split_include\n");
288 case '\0': /* Plain "-I" */
291 die("missing argument for -I option");
294 add_pre_buffer("#add_include \"%s/\"\n", path
);
299 static void add_cmdline_include(char *filename
)
301 int fd
= open(filename
, O_RDONLY
);
306 if (cmdline_include_nr
>= CMDLINE_INCLUDE
)
307 die("too many include files for %s\n", filename
);
308 cmdline_include
[cmdline_include_nr
].filename
= filename
;
309 cmdline_include
[cmdline_include_nr
].fd
= fd
;
310 cmdline_include_nr
++;
313 static char **handle_switch_i(char *arg
, char **next
)
315 if (*next
&& !strcmp(arg
, "include"))
316 add_cmdline_include(*++next
);
317 else if (*next
&& !strcmp(arg
, "imacros"))
318 add_cmdline_include(*++next
);
319 else if (*next
&& !strcmp(arg
, "isystem")) {
320 char *path
= *++next
;
322 die("missing argument for -isystem option");
323 add_pre_buffer("#add_isystem \"%s/\"\n", path
);
324 } else if (*next
&& !strcmp(arg
, "idirafter")) {
325 char *path
= *++next
;
327 die("missing argument for -idirafter option");
328 add_pre_buffer("#add_dirafter \"%s/\"\n", path
);
333 static char **handle_switch_M(char *arg
, char **next
)
335 if (!strcmp(arg
, "MF") || !strcmp(arg
,"MQ") || !strcmp(arg
,"MT")) {
337 die("missing argument for -%s option", arg
);
343 static char **handle_switch_m(char *arg
, char **next
)
345 if (!strcmp(arg
, "m64")) {
347 max_int_alignment
= 8;
348 bits_in_pointer
= 64;
349 pointer_alignment
= 8;
350 size_t_ctype
= &ulong_ctype
;
351 ssize_t_ctype
= &long_ctype
;
352 } else if (!strcmp(arg
, "msize-long")) {
353 size_t_ctype
= &ulong_ctype
;
354 ssize_t_ctype
= &long_ctype
;
359 static char **handle_switch_o(char *arg
, char **next
)
361 if (!strcmp (arg
, "o")) { // "-o foo"
363 die("argument to '-o' is missing");
370 static const struct warning
{
374 { "address-space", &Waddress_space
},
375 { "bitwise", &Wbitwise
},
376 { "cast-to-as", &Wcast_to_as
},
377 { "cast-truncate", &Wcast_truncate
},
378 { "context", &Wcontext
},
380 { "default-bitfield-sign", &Wdefault_bitfield_sign
},
381 { "do-while", &Wdo_while
},
382 { "enum-mismatch", &Wenum_mismatch
},
383 { "non-pointer-null", &Wnon_pointer_null
},
384 { "old-initializer", &Wold_initializer
},
385 { "one-bit-signed-bitfield", &Wone_bit_signed_bitfield
},
386 { "paren-string", &Wparen_string
},
387 { "ptr-subtraction-blows", &Wptr_subtraction_blows
},
388 { "return-void", &Wreturn_void
},
389 { "shadow", &Wshadow
},
390 { "transparent-union", &Wtransparent_union
},
391 { "typesign", &Wtypesign
},
392 { "undef", &Wundef
},
393 { "uninitialized", &Wuninitialized
},
394 { "declaration-after-statement", &Wdeclarationafterstatement
},
404 static char **handle_onoff_switch(char *arg
, char **next
, const struct warning warnings
[], int n
)
406 int flag
= WARNING_ON
;
410 if (!strcmp(p
, "all")) {
411 for (i
= 0; i
< n
; i
++) {
412 if (*warnings
[i
].flag
!= WARNING_FORCE_OFF
)
413 *warnings
[i
].flag
= WARNING_ON
;
417 // Prefixes "no" and "no-" mean to turn warning off.
418 if (p
[0] == 'n' && p
[1] == 'o') {
422 flag
= WARNING_FORCE_OFF
;
425 for (i
= 0; i
< n
; i
++) {
426 if (!strcmp(p
,warnings
[i
].name
)) {
427 *warnings
[i
].flag
= flag
;
436 static char **handle_switch_W(char *arg
, char **next
)
438 char ** ret
= handle_onoff_switch(arg
, next
, warnings
, sizeof warnings
/sizeof warnings
[0]);
446 static struct warning debugs
[] = {
447 { "entry", &dbg_entry
},
448 { "dead", &dbg_dead
},
452 static char **handle_switch_v(char *arg
, char **next
)
454 char ** ret
= handle_onoff_switch(arg
, next
, debugs
, sizeof debugs
/sizeof debugs
[0]);
461 } while (*++arg
== 'v');
466 static void handle_onoff_switch_finalize(const struct warning warnings
[], int n
)
470 for (i
= 0; i
< n
; i
++) {
471 if (*warnings
[i
].flag
== WARNING_FORCE_OFF
)
472 *warnings
[i
].flag
= WARNING_OFF
;
476 static void handle_switch_W_finalize(void)
478 handle_onoff_switch_finalize(warnings
, sizeof(warnings
) / sizeof(warnings
[0]));
480 /* default Wdeclarationafterstatement based on the C dialect */
481 if (-1 == Wdeclarationafterstatement
)
487 Wdeclarationafterstatement
= 1;
493 Wdeclarationafterstatement
= 0;
503 static void handle_switch_v_finalize(void)
505 handle_onoff_switch_finalize(debugs
, sizeof(debugs
) / sizeof(debugs
[0]));
508 static char **handle_switch_U(char *arg
, char **next
)
510 const char *name
= arg
+ 1;
511 add_pre_buffer ("#undef %s\n", name
);
515 static char **handle_switch_O(char *arg
, char **next
)
518 if (arg
[1] >= '0' && arg
[1] <= '9')
519 level
= arg
[1] - '0';
521 optimize_size
= arg
[1] == 's';
525 static char **handle_switch_ftabstop(char *arg
, char **next
)
531 die("error: missing argument to \"-ftabstop=\"");
533 /* we silently ignore silly values */
534 val
= strtoul(arg
, &end
, 10);
535 if (*end
== '\0' && 1 <= val
&& val
<= 100)
541 static char **handle_switch_f(char *arg
, char **next
)
547 if (!strncmp(arg
, "tabstop=", 8))
548 return handle_switch_ftabstop(arg
+8, next
);
550 /* handle switches w/ arguments above, boolean and only boolean below */
552 if (!strncmp(arg
, "no-", 3)) {
556 /* handle switch here.. */
560 static char **handle_switch_G(char *arg
, char **next
)
562 if (!strcmp (arg
, "G") && *next
)
563 return next
+ 1; // "-G 0"
565 return next
; // "-G0" or (bogus) terminal "-G"
568 static char **handle_switch_a(char *arg
, char **next
)
570 if (!strcmp (arg
, "ansi"))
571 standard
= STANDARD_C89
;
576 static char **handle_switch_s(char *arg
, char **next
)
578 if (!strncmp (arg
, "std=", 4))
582 if (!strcmp (arg
, "c89") ||
583 !strcmp (arg
, "iso9899:1990"))
584 standard
= STANDARD_C89
;
586 else if (!strcmp (arg
, "iso9899:199409"))
587 standard
= STANDARD_C94
;
589 else if (!strcmp (arg
, "c99") ||
590 !strcmp (arg
, "c9x") ||
591 !strcmp (arg
, "iso9899:1999") ||
592 !strcmp (arg
, "iso9899:199x"))
593 standard
= STANDARD_C99
;
595 else if (!strcmp (arg
, "gnu89"))
596 standard
= STANDARD_GNU89
;
598 else if (!strcmp (arg
, "gnu99") || !strcmp (arg
, "gnu9x"))
599 standard
= STANDARD_GNU99
;
602 die ("Unsupported C dialect");
608 static char **handle_nostdinc(char *arg
, char **next
)
610 add_pre_buffer("#nostdinc\n");
614 static char **handle_base_dir(char *arg
, char **next
)
616 gcc_base_dir
= *++next
;
618 die("missing argument for -gcc-base-dir option");
624 char **(*fn
)(char *, char **);
627 static char **handle_switch(char *arg
, char **next
)
629 static struct switches cmd
[] = {
630 { "nostdinc", handle_nostdinc
},
631 { "gcc-base-dir", handle_base_dir
},
637 case 'D': return handle_switch_D(arg
, next
);
638 case 'E': return handle_switch_E(arg
, next
);
639 case 'I': return handle_switch_I(arg
, next
);
640 case 'i': return handle_switch_i(arg
, next
);
641 case 'M': return handle_switch_M(arg
, next
);
642 case 'm': return handle_switch_m(arg
, next
);
643 case 'o': return handle_switch_o(arg
, next
);
644 case 'U': return handle_switch_U(arg
, next
);
645 case 'v': return handle_switch_v(arg
, next
);
646 case 'W': return handle_switch_W(arg
, next
);
647 case 'O': return handle_switch_O(arg
, next
);
648 case 'f': return handle_switch_f(arg
, next
);
649 case 'G': return handle_switch_G(arg
, next
);
650 case 'a': return handle_switch_a(arg
, next
);
651 case 's': return handle_switch_s(arg
, next
);
658 if (!strcmp(s
->name
, arg
))
659 return s
->fn(arg
, next
);
664 * Ignore unknown command line options:
665 * they're probably gcc switches
670 void declare_builtin_functions(void)
672 /* Gaah. gcc knows tons of builtin <string.h> functions */
673 add_pre_buffer("extern void *__builtin_memcpy(void *, const void *, __SIZE_TYPE__);\n");
674 add_pre_buffer("extern void *__builtin_mempcpy(void *, const void *, __SIZE_TYPE__);\n");
675 add_pre_buffer("extern void *__builtin_memset(void *, int, __SIZE_TYPE__);\n");
676 add_pre_buffer("extern int __builtin_memcmp(const void *, const void *, __SIZE_TYPE__);\n");
677 add_pre_buffer("extern char *__builtin_strcat(char *, const char *);\n");
678 add_pre_buffer("extern char *__builtin_strncat(char *, const char *, __SIZE_TYPE__);\n");
679 add_pre_buffer("extern int __builtin_strcmp(const char *, const char *);\n");
680 add_pre_buffer("extern char *__builtin_strchr(const char *, int);\n");
681 add_pre_buffer("extern char *__builtin_strcpy(char *, const char *);\n");
682 add_pre_buffer("extern char *__builtin_strncpy(char *, const char *, __SIZE_TYPE__);\n");
683 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strspn(const char *, const char *);\n");
684 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strcspn(const char *, const char *);\n");
685 add_pre_buffer("extern char * __builtin_strpbrk(const char *, const char *);\n");
686 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strlen(const char *);\n");
688 /* And some random ones.. */
689 add_pre_buffer("extern void *__builtin_return_address(unsigned int);\n");
690 add_pre_buffer("extern void *__builtin_extract_return_addr(void *);\n");
691 add_pre_buffer("extern void *__builtin_frame_address(unsigned int);\n");
692 add_pre_buffer("extern void __builtin_trap(void);\n");
693 add_pre_buffer("extern int __builtin_ffs(int);\n");
694 add_pre_buffer("extern void *__builtin_alloca(__SIZE_TYPE__);\n");
695 add_pre_buffer("extern int __builtin_popcount(unsigned int);\n");
696 add_pre_buffer("extern int __builtin_popcountl(unsigned long);\n");
697 add_pre_buffer("extern void __builtin_prefetch (const void *, ...);\n");
698 add_pre_buffer("extern long __builtin_alpha_extbl(long, long);\n");
699 add_pre_buffer("extern long __builtin_alpha_extwl(long, long);\n");
700 add_pre_buffer("extern long __builtin_alpha_insbl(long, long);\n");
701 add_pre_buffer("extern long __builtin_alpha_inswl(long, long);\n");
702 add_pre_buffer("extern long __builtin_alpha_insql(long, long);\n");
703 add_pre_buffer("extern long __builtin_alpha_inslh(long, long);\n");
704 add_pre_buffer("extern long __builtin_alpha_cmpbge(long, long);\n");
705 add_pre_buffer("extern long __builtin_labs(long);\n");
707 /* And some __FORTIFY_SOURCE ones.. */
708 add_pre_buffer ("extern __SIZE_TYPE__ __builtin_object_size(void *, int);\n");
709 add_pre_buffer ("extern void * __builtin___memcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
710 add_pre_buffer ("extern void * __builtin___memmove_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
711 add_pre_buffer ("extern void * __builtin___mempcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
712 add_pre_buffer ("extern void * __builtin___memset_chk(void *, int, __SIZE_TYPE__, __SIZE_TYPE__);\n");
713 add_pre_buffer ("extern int __builtin___sprintf_chk(char *, int, __SIZE_TYPE__, const char *, ...);\n");
714 add_pre_buffer ("extern int __builtin___snprintf_chk(char *, __SIZE_TYPE__, int , __SIZE_TYPE__, const char *, ...);\n");
715 add_pre_buffer ("extern char * __builtin___stpcpy_chk(char *, const char *, __SIZE_TYPE__);\n");
716 add_pre_buffer ("extern char * __builtin___strcat_chk(char *, const char *, __SIZE_TYPE__);\n");
717 add_pre_buffer ("extern char * __builtin___strcpy_chk(char *, const char *, __SIZE_TYPE__);\n");
718 add_pre_buffer ("extern char * __builtin___strncat_chk(char *, const char *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
719 add_pre_buffer ("extern char * __builtin___strncpy_chk(char *, const char *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
720 add_pre_buffer ("extern int __builtin___vsprintf_chk(char *, int, __SIZE_TYPE__, const char *, __builtin_va_list);\n");
721 add_pre_buffer ("extern int __builtin___vsnprintf_chk(char *, __SIZE_TYPE__, int, __SIZE_TYPE__, const char *, __builtin_va_list ap);\n");
724 void create_builtin_stream(void)
726 add_pre_buffer("#weak_define __GNUC__ %d\n", gcc_major
);
727 add_pre_buffer("#weak_define __GNUC_MINOR__ %d\n", gcc_minor
);
728 add_pre_buffer("#weak_define __GNUC_PATCHLEVEL__ %d\n", gcc_patchlevel
);
730 /* We add compiler headers path here because we have to parse
731 * the arguments to get it, falling back to default. */
732 add_pre_buffer("#add_system \"%s/include\"\n", gcc_base_dir
);
733 add_pre_buffer("#add_system \"%s/include-fixed\"\n", gcc_base_dir
);
735 add_pre_buffer("#define __extension__\n");
736 add_pre_buffer("#define __pragma__\n");
738 // gcc defines __SIZE_TYPE__ to be size_t. For linux/i86 and
739 // solaris/sparc that is really "unsigned int" and for linux/x86_64
740 // it is "long unsigned int". In either case we can probably
741 // get away with this. We need the #weak_define as cgcc will define
742 // the right __SIZE_TYPE__.
743 if (size_t_ctype
== &ulong_ctype
)
744 add_pre_buffer("#weak_define __SIZE_TYPE__ long unsigned int\n");
746 add_pre_buffer("#weak_define __SIZE_TYPE__ unsigned int\n");
747 add_pre_buffer("#weak_define __STDC__ 1\n");
752 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
756 add_pre_buffer("#weak_define __STDC_VERSION__ 199409L\n");
757 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
761 add_pre_buffer("#weak_define __STDC_VERSION__ 199901L\n");
762 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
769 add_pre_buffer("#weak_define __STDC_VERSION__ 199901L\n");
776 add_pre_buffer("#define __builtin_stdarg_start(a,b) ((a) = (__builtin_va_list)(&(b)))\n");
777 add_pre_buffer("#define __builtin_va_start(a,b) ((a) = (__builtin_va_list)(&(b)))\n");
778 add_pre_buffer("#define __builtin_va_arg(arg,type) ({ type __va_arg_ret = *(type *)(arg); arg += sizeof(type); __va_arg_ret; })\n");
779 add_pre_buffer("#define __builtin_va_alist (*(void *)0)\n");
780 add_pre_buffer("#define __builtin_va_arg_incr(x) ((x) + 1)\n");
781 add_pre_buffer("#define __builtin_va_copy(dest, src) ({ dest = src; (void)0; })\n");
782 add_pre_buffer("#define __builtin_va_end(arg)\n");
784 /* FIXME! We need to do these as special magic macros at expansion time! */
785 add_pre_buffer("#define __BASE_FILE__ \"base_file.c\"\n");
788 add_pre_buffer("#define __OPTIMIZE__ 1\n");
790 add_pre_buffer("#define __OPTIMIZE_SIZE__ 1\n");
793 static struct symbol_list
*sparse_tokenstream(struct token
*token
)
795 // Preprocess the stream
796 token
= preprocess(token
);
798 if (preprocess_only
) {
799 while (!eof_token(token
)) {
801 struct token
*next
= token
->next
;
802 const char *separator
= "";
803 if (next
->pos
.whitespace
)
805 if (next
->pos
.newline
) {
806 separator
= "\n\t\t\t\t\t";
807 prec
= next
->pos
.pos
;
811 printf("%s%.*s", show_token(token
), prec
, separator
);
819 // Parse the resulting C code
820 while (!eof_token(token
))
821 token
= external_declaration(token
, &translation_unit_used_list
);
822 return translation_unit_used_list
;
825 static struct symbol_list
*sparse_file(const char *filename
)
830 if (strcmp (filename
, "-") == 0) {
833 fd
= open(filename
, O_RDONLY
);
835 die("No such file: %s", filename
);
838 // Tokenize the input stream
839 token
= tokenize(filename
, fd
, NULL
, includepath
);
842 return sparse_tokenstream(token
);
846 * This handles the "-include" directive etc: we're in global
847 * scope, and all types/macros etc will affect all the following
850 * NOTE NOTE NOTE! "#undef" of anything in this stage will
851 * affect all subsequent files too, i.e. we can have non-local
852 * behaviour between files!
854 static struct symbol_list
*sparse_initial(void)
859 // Prepend any "include" file to the stream.
860 // We're in global scope, it will affect all files!
862 for (i
= cmdline_include_nr
- 1; i
>= 0; i
--)
863 token
= tokenize(cmdline_include
[i
].filename
, cmdline_include
[i
].fd
,
866 // Prepend the initial built-in stream
868 pre_buffer_end
->next
= token
;
869 return sparse_tokenstream(pre_buffer_begin
);
872 struct symbol_list
*sparse_initialize(int argc
, char **argv
, struct string_list
**filelist
)
875 struct symbol_list
*list
;
877 // Initialize symbol stream first, so that we can add defines etc
886 if (arg
[0] == '-' && arg
[1]) {
887 args
= handle_switch(arg
+1, args
);
890 add_ptr_list_notag(filelist
, arg
);
892 handle_switch_W_finalize();
893 handle_switch_v_finalize();
896 if (!ptr_list_empty(filelist
)) {
897 // Initialize type system
900 create_builtin_stream();
901 add_pre_buffer("#define __CHECKER__ 1\n");
902 if (!preprocess_only
)
903 declare_builtin_functions();
905 list
= sparse_initial();
908 * Protect the initial token allocations, since
909 * they need to survive all the others
911 protect_token_alloc();
916 struct symbol_list
* sparse_keep_tokens(char *filename
)
918 struct symbol_list
*res
;
920 /* Clear previous symbol list */
921 translation_unit_used_list
= NULL
;
924 res
= sparse_file(filename
);
931 struct symbol_list
* __sparse(char *filename
)
933 struct symbol_list
*res
;
935 res
= sparse_keep_tokens(filename
);
937 /* Drop the tokens for this file after parsing */
944 struct symbol_list
* sparse(char *filename
)
946 struct symbol_list
*res
= __sparse(filename
);
948 /* Evaluate the complete symbol list */
949 evaluate_symbol_list(res
);