2 * 'sparse' library helper routines.
4 * Copyright (C) 2003 Transmeta Corp.
5 * 2003-2004 Linus Torvalds
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
35 #include <sys/types.h>
42 #include "expression.h"
44 #include "linearize.h"
48 int verbose
, optimize
, optimize_size
, preprocessing
;
55 # define __GNUC_MINOR__ 95
56 # define __GNUC_PATCHLEVEL__ 0
59 int gcc_major
= __GNUC__
;
60 int gcc_minor
= __GNUC_MINOR__
;
61 int gcc_patchlevel
= __GNUC_PATCHLEVEL__
;
63 static const char *gcc_base_dir
= GCC_BASE
;
64 static const char *multiarch_dir
= MULTIARCH_TRIPLET
;
66 struct token
*skip_to(struct token
*token
, int op
)
68 while (!match_op(token
, op
) && !eof_token(token
))
73 struct token
*expect(struct token
*token
, int op
, const char *where
)
75 if (!match_op(token
, op
)) {
76 static struct token bad_token
;
77 if (token
!= &bad_token
) {
78 bad_token
.next
= token
;
79 sparse_error(token
->pos
, "Expected %s %s", show_special(op
), where
);
80 sparse_error(token
->pos
, "got %s", show_token(token
));
83 return skip_to(token
, op
);
89 unsigned int hexval(unsigned int c
)
97 retval
= c
- 'a' + 10;
100 retval
= c
- 'A' + 10;
106 static void do_warn(const char *type
, struct position pos
, const char * fmt
, va_list args
)
108 static char buffer
[512];
111 vsprintf(buffer
, fmt
, args
);
112 name
= stream_name(pos
.stream
);
114 fprintf(stderr
, "%s:%d:%d: %s%s\n",
115 name
, pos
.line
, pos
.pos
, type
, buffer
);
118 static int max_warnings
= 100;
119 static int show_info
= 1;
121 void info(struct position pos
, const char * fmt
, ...)
128 do_warn("", pos
, fmt
, args
);
132 static void do_error(struct position pos
, const char * fmt
, va_list args
)
134 static int errors
= 0;
139 /* Shut up warnings after an error */
140 has_error
|= ERROR_CURR_PHASE
;
146 fmt
= "too many errors";
150 do_warn("error: ", pos
, fmt
, args
);
154 void warning(struct position pos
, const char * fmt
, ...)
160 do_error(pos
, fmt
, args
);
165 if (!max_warnings
|| has_error
) {
170 if (!--max_warnings
) {
172 fmt
= "too many warnings";
176 do_warn("warning: ", pos
, fmt
, args
);
180 void sparse_error(struct position pos
, const char * fmt
, ...)
184 do_error(pos
, fmt
, args
);
188 void expression_error(struct expression
*expr
, const char *fmt
, ...)
192 do_error(expr
->pos
, fmt
, args
);
194 expr
->ctype
= &bad_ctype
;
198 void error_die(struct position pos
, const char * fmt
, ...)
202 do_warn("error: ", pos
, fmt
, args
);
208 void die(const char *fmt
, ...)
211 static char buffer
[512];
214 vsnprintf(buffer
, sizeof(buffer
), fmt
, args
);
217 fprintf(stderr
, "%s\n", buffer
);
221 static struct token
*pre_buffer_begin
= NULL
;
222 static struct token
*pre_buffer_end
= NULL
;
225 int Waddress_space
= 1;
226 int Wbig_constants
= 1;
229 int Wcast_truncate
= 1;
230 int Wconstexpr_not_const
= 0;
233 int Wdeclarationafterstatement
= -1;
234 int Wdefault_bitfield_sign
= 0;
235 int Wdesignated_init
= 1;
237 int Winit_cstring
= 0;
238 int Wenum_mismatch
= 1;
239 int Wempty_character_constant
= 1;
240 int Wsparse_error
= 0;
241 int Wmemcpy_max_count
= 1;
242 int Wnon_ansi_function_declaration
= 1;
243 int Wnon_pointer_null
= 1;
244 int Wold_initializer
= 1;
245 int Wone_bit_signed_bitfield
= 1;
246 int Woverride_init
= 1;
247 int Woverride_init_all
= 0;
248 int Woverride_init_whole_range
= 0;
249 int Wparen_string
= 0;
250 int Wpointer_arith
= 0;
251 int Wptr_subtraction_blows
= 0;
252 int Wreturn_void
= 0;
254 int Wsizeof_bool
= 0;
255 int Wtautological_compare
= 0;
256 int Wtransparent_union
= 0;
259 int Wuninitialized
= 1;
260 int Wunknown_attribute
= 0;
263 int dump_macro_defs
= 0;
270 unsigned long long fmemcpy_max_count
= 100000;
274 static enum { STANDARD_C89
,
280 STANDARD_GNU99
, } standard
= STANDARD_GNU89
;
287 #define ARCH_M64_DEFAULT ARCH_LP64
289 #define ARCH_M64_DEFAULT ARCH_LP32
292 int arch_m64
= ARCH_M64_DEFAULT
;
293 int arch_msize_long
= 0;
295 #ifdef __BIG_ENDIAN__
296 #define ARCH_BIG_ENDIAN 1
298 #define ARCH_BIG_ENDIAN 0
300 int arch_big_endian
= ARCH_BIG_ENDIAN
;
303 #define CMDLINE_INCLUDE 20
304 static int cmdline_include_nr
= 0;
305 static char *cmdline_include
[CMDLINE_INCLUDE
];
308 void add_pre_buffer(const char *fmt
, ...)
312 struct token
*begin
, *end
;
316 size
= vsnprintf(buffer
, sizeof(buffer
), fmt
, args
);
318 begin
= tokenize_buffer(buffer
, size
, &end
);
319 if (!pre_buffer_begin
)
320 pre_buffer_begin
= begin
;
322 pre_buffer_end
->next
= begin
;
323 pre_buffer_end
= end
;
326 static char **handle_switch_D(char *arg
, char **next
)
328 const char *name
= arg
+ 1;
329 const char *value
= "1";
334 die("argument to `-D' is missing");
349 add_pre_buffer("#define %s %s\n", name
, value
);
353 static char **handle_switch_E(char *arg
, char **next
)
360 static char **handle_switch_I(char *arg
, char **next
)
366 add_pre_buffer("#split_include\n");
369 case '\0': /* Plain "-I" */
372 die("missing argument for -I option");
375 add_pre_buffer("#add_include \"%s/\"\n", path
);
380 static void add_cmdline_include(char *filename
)
382 if (cmdline_include_nr
>= CMDLINE_INCLUDE
)
383 die("too many include files for %s\n", filename
);
384 cmdline_include
[cmdline_include_nr
++] = filename
;
387 static char **handle_switch_i(char *arg
, char **next
)
389 if (*next
&& !strcmp(arg
, "include"))
390 add_cmdline_include(*++next
);
391 else if (*next
&& !strcmp(arg
, "imacros"))
392 add_cmdline_include(*++next
);
393 else if (*next
&& !strcmp(arg
, "isystem")) {
394 char *path
= *++next
;
396 die("missing argument for -isystem option");
397 add_pre_buffer("#add_isystem \"%s/\"\n", path
);
398 } else if (*next
&& !strcmp(arg
, "idirafter")) {
399 char *path
= *++next
;
401 die("missing argument for -idirafter option");
402 add_pre_buffer("#add_dirafter \"%s/\"\n", path
);
407 static char **handle_switch_M(char *arg
, char **next
)
409 if (!strcmp(arg
, "MF") || !strcmp(arg
,"MQ") || !strcmp(arg
,"MT")) {
411 die("missing argument for -%s option", arg
);
417 static char **handle_multiarch_dir(char *arg
, char **next
)
419 multiarch_dir
= *++next
;
421 die("missing argument for -multiarch-dir option");
425 static char **handle_switch_m(char *arg
, char **next
)
427 if (!strcmp(arg
, "m64")) {
428 arch_m64
= ARCH_LP64
;
429 } else if (!strcmp(arg
, "m32")) {
430 arch_m64
= ARCH_LP32
;
431 } else if (!strcmp(arg
, "msize-llp64")) {
432 arch_m64
= ARCH_LLP64
;
433 } else if (!strcmp(arg
, "msize-long")) {
435 } else if (!strcmp(arg
, "multiarch-dir")) {
436 return handle_multiarch_dir(arg
, next
);
437 } else if (!strcmp(arg
, "mbig-endian")) {
439 } else if (!strcmp(arg
, "mlittle-endian")) {
445 static void handle_arch_m64_finalize(void)
450 #if defined(__x86_64__) || defined (__i386)
451 add_pre_buffer("#weak_define __i386__ 1\n");
452 add_pre_buffer("#weak_define __i386 1\n");
457 max_int_alignment
= 8;
458 size_t_ctype
= &ulong_ctype
;
459 ssize_t_ctype
= &long_ctype
;
460 add_pre_buffer("#weak_define __LP64__ 1\n");
461 add_pre_buffer("#weak_define _LP64 1\n");
462 goto case_64bit_common
;
465 max_int_alignment
= 4;
466 size_t_ctype
= &ullong_ctype
;
467 ssize_t_ctype
= &llong_ctype
;
468 add_pre_buffer("#weak_define __LLP64__ 1\n");
469 goto case_64bit_common
;
471 bits_in_pointer
= 64;
472 pointer_alignment
= 8;
473 #if defined(__x86_64__) || defined (__i386)
474 add_pre_buffer("#weak_define __x86_64__ 1\n");
475 add_pre_buffer("#weak_define __x86_64 1\n");
481 static void handle_arch_msize_long_finalize(void)
483 if (arch_msize_long
) {
484 size_t_ctype
= &ulong_ctype
;
485 ssize_t_ctype
= &long_ctype
;
489 static void handle_arch_finalize(void)
491 handle_arch_m64_finalize();
492 handle_arch_msize_long_finalize();
496 static int handle_simple_switch(const char *arg
, const char *name
, int *flag
)
500 // Prefixe "no-" mean to turn flag off.
501 if (strncmp(arg
, "no-", 3) == 0) {
506 if (strcmp(arg
, name
) == 0) {
515 static char **handle_switch_o(char *arg
, char **next
)
517 if (!strcmp (arg
, "o")) { // "-o foo"
519 die("argument to '-o' is missing");
526 static const struct warning
{
530 { "address", &Waddress
},
531 { "address-space", &Waddress_space
},
532 { "big-constants", &Wbig_constants
},
533 { "bitwise", &Wbitwise
},
534 { "cast-to-as", &Wcast_to_as
},
535 { "cast-truncate", &Wcast_truncate
},
536 { "constexpr-not-const", &Wconstexpr_not_const
},
537 { "context", &Wcontext
},
539 { "declaration-after-statement", &Wdeclarationafterstatement
},
540 { "default-bitfield-sign", &Wdefault_bitfield_sign
},
541 { "designated-init", &Wdesignated_init
},
542 { "do-while", &Wdo_while
},
543 { "empty-character-constant", &Wempty_character_constant
},
544 { "enum-mismatch", &Wenum_mismatch
},
545 { "init-cstring", &Winit_cstring
},
546 { "memcpy-max-count", &Wmemcpy_max_count
},
547 { "non-ansi-function-declaration", &Wnon_ansi_function_declaration
},
548 { "non-pointer-null", &Wnon_pointer_null
},
549 { "old-initializer", &Wold_initializer
},
550 { "one-bit-signed-bitfield", &Wone_bit_signed_bitfield
},
551 { "override-init", &Woverride_init
},
552 { "override-init-all", &Woverride_init_all
},
553 { "paren-string", &Wparen_string
},
554 { "ptr-subtraction-blows", &Wptr_subtraction_blows
},
555 { "return-void", &Wreturn_void
},
556 { "shadow", &Wshadow
},
557 { "sizeof-bool", &Wsizeof_bool
},
558 { "pointer-arith", &Wpointer_arith
},
559 { "sparse-error", &Wsparse_error
},
560 { "tautological-compare", &Wtautological_compare
},
561 { "transparent-union", &Wtransparent_union
},
562 { "typesign", &Wtypesign
},
563 { "undef", &Wundef
},
564 { "uninitialized", &Wuninitialized
},
565 { "unknown-attribute", &Wunknown_attribute
},
576 static char **handle_onoff_switch(char *arg
, char **next
, const struct warning warnings
[], int n
)
578 int flag
= WARNING_ON
;
582 if (!strcmp(p
, "sparse-all")) {
583 for (i
= 0; i
< n
; i
++) {
584 if (*warnings
[i
].flag
!= WARNING_FORCE_OFF
&& warnings
[i
].flag
!= &Wsparse_error
)
585 *warnings
[i
].flag
= WARNING_ON
;
589 // Prefixes "no" and "no-" mean to turn warning off.
590 if (p
[0] == 'n' && p
[1] == 'o') {
594 flag
= WARNING_FORCE_OFF
;
597 for (i
= 0; i
< n
; i
++) {
598 if (!strcmp(p
,warnings
[i
].name
)) {
599 *warnings
[i
].flag
= flag
;
608 static char **handle_switch_W(char *arg
, char **next
)
610 char ** ret
= handle_onoff_switch(arg
, next
, warnings
, ARRAY_SIZE(warnings
));
618 static struct warning debugs
[] = {
619 { "entry", &dbg_entry
},
620 { "dead", &dbg_dead
},
624 static char **handle_switch_v(char *arg
, char **next
)
626 char ** ret
= handle_onoff_switch(arg
, next
, debugs
, ARRAY_SIZE(debugs
));
633 } while (*++arg
== 'v');
637 static struct warning dumps
[] = {
638 { "D", &dump_macro_defs
},
641 static char **handle_switch_d(char *arg
, char **next
)
643 char ** ret
= handle_onoff_switch(arg
, next
, dumps
, ARRAY_SIZE(dumps
));
651 static void handle_onoff_switch_finalize(const struct warning warnings
[], int n
)
655 for (i
= 0; i
< n
; i
++) {
656 if (*warnings
[i
].flag
== WARNING_FORCE_OFF
)
657 *warnings
[i
].flag
= WARNING_OFF
;
661 static void handle_switch_W_finalize(void)
663 handle_onoff_switch_finalize(warnings
, ARRAY_SIZE(warnings
));
665 /* default Wdeclarationafterstatement based on the C dialect */
666 if (-1 == Wdeclarationafterstatement
)
672 Wdeclarationafterstatement
= 1;
680 Wdeclarationafterstatement
= 0;
690 static void handle_switch_v_finalize(void)
692 handle_onoff_switch_finalize(debugs
, ARRAY_SIZE(debugs
));
695 static char **handle_switch_U(char *arg
, char **next
)
697 const char *name
= arg
+ 1;
700 add_pre_buffer ("#undef %s\n", name
);
704 static char **handle_switch_O(char *arg
, char **next
)
707 if (arg
[1] >= '0' && arg
[1] <= '9')
708 level
= arg
[1] - '0';
710 optimize_size
= arg
[1] == 's';
714 static char **handle_switch_fmemcpy_max_count(char *arg
, char **next
)
716 unsigned long long val
;
719 val
= strtoull(arg
, &end
, 0);
720 if (*end
!= '\0' || end
== arg
)
721 die("error: missing argument to \"-fmemcpy-max-count=\"");
725 fmemcpy_max_count
= val
;
729 static char **handle_switch_ftabstop(char *arg
, char **next
)
735 die("error: missing argument to \"-ftabstop=\"");
737 /* we silently ignore silly values */
738 val
= strtoul(arg
, &end
, 10);
739 if (*end
== '\0' && 1 <= val
&& val
<= 100)
745 static int funsigned_char
;
746 static void handle_funsigned_char(void)
748 if (funsigned_char
) {
749 char_ctype
.ctype
.modifiers
&= ~MOD_SIGNED
;
750 char_ctype
.ctype
.modifiers
|= MOD_UNSIGNED
;
754 static char **handle_switch_fdump(char *arg
, char **next
)
756 if (!strncmp(arg
, "linearize", 9)) {
760 else if (!strcmp(arg
, "=only"))
766 /* ignore others flags */
770 die("error: unknown flag \"-fdump-%s\"", arg
);
773 static char **handle_switch_f(char *arg
, char **next
)
777 if (!strncmp(arg
, "tabstop=", 8))
778 return handle_switch_ftabstop(arg
+8, next
);
779 if (!strncmp(arg
, "dump-", 5))
780 return handle_switch_fdump(arg
+5, next
);
781 if (!strncmp(arg
, "memcpy-max-count=", 17))
782 return handle_switch_fmemcpy_max_count(arg
+17, next
);
784 if (!strcmp(arg
, "unsigned-char")) {
789 /* handle switches w/ arguments above, boolean and only boolean below */
790 if (handle_simple_switch(arg
, "mem-report", &fmem_report
))
796 static char **handle_switch_G(char *arg
, char **next
)
798 if (!strcmp (arg
, "G") && *next
)
799 return next
+ 1; // "-G 0"
801 return next
; // "-G0" or (bogus) terminal "-G"
804 static char **handle_switch_a(char *arg
, char **next
)
806 if (!strcmp (arg
, "ansi"))
807 standard
= STANDARD_C89
;
812 static char **handle_switch_s(char *arg
, char **next
)
814 if (!strncmp (arg
, "std=", 4))
818 if (!strcmp (arg
, "c89") ||
819 !strcmp (arg
, "iso9899:1990"))
820 standard
= STANDARD_C89
;
822 else if (!strcmp (arg
, "iso9899:199409"))
823 standard
= STANDARD_C94
;
825 else if (!strcmp (arg
, "c99") ||
826 !strcmp (arg
, "c9x") ||
827 !strcmp (arg
, "iso9899:1999") ||
828 !strcmp (arg
, "iso9899:199x"))
829 standard
= STANDARD_C99
;
831 else if (!strcmp (arg
, "gnu89"))
832 standard
= STANDARD_GNU89
;
834 else if (!strcmp (arg
, "gnu99") || !strcmp (arg
, "gnu9x"))
835 standard
= STANDARD_GNU99
;
837 else if (!strcmp(arg
, "c11") ||
838 !strcmp(arg
, "c1x") ||
839 !strcmp(arg
, "iso9899:2011"))
840 standard
= STANDARD_C11
;
842 else if (!strcmp(arg
, "gnu11"))
843 standard
= STANDARD_GNU11
;
846 die ("Unsupported C dialect");
852 static char **handle_nostdinc(char *arg
, char **next
)
854 add_pre_buffer("#nostdinc\n");
858 static char **handle_switch_n(char *arg
, char **next
)
860 if (!strcmp (arg
, "nostdinc"))
861 return handle_nostdinc(arg
, next
);
866 static char **handle_base_dir(char *arg
, char **next
)
868 gcc_base_dir
= *++next
;
870 die("missing argument for -gcc-base-dir option");
874 static char **handle_no_lineno(char *arg
, char **next
)
880 static char **handle_switch_g(char *arg
, char **next
)
882 if (!strcmp (arg
, "gcc-base-dir"))
883 return handle_base_dir(arg
, next
);
888 static char **handle_version(char *arg
, char **next
)
890 printf("%s\n", SPARSE_VERSION
);
894 static char **handle_param(char *arg
, char **next
)
898 /* For now just skip any '--param=*' or '--param *' */
901 } else if (isspace((unsigned char)*arg
) || *arg
== '=') {
906 die("missing argument for --param option");
913 char **(*fn
)(char *, char **);
914 unsigned int prefix
:1;
917 static char **handle_long_options(char *arg
, char **next
)
919 static struct switches cmd
[] = {
920 { "param", handle_param
, 1 },
921 { "version", handle_version
},
922 { "nostdinc", handle_nostdinc
},
923 { "gcc-base-dir", handle_base_dir
},
924 { "no-lineno", handle_no_lineno
},
927 struct switches
*s
= cmd
;
930 int optlen
= strlen(s
->name
);
931 if (!strncmp(s
->name
, arg
, optlen
+ !s
->prefix
))
932 return s
->fn(arg
+ optlen
, next
);
938 static char **handle_switch(char *arg
, char **next
)
941 case 'a': return handle_switch_a(arg
, next
);
942 case 'D': return handle_switch_D(arg
, next
);
943 case 'd': return handle_switch_d(arg
, next
);
944 case 'E': return handle_switch_E(arg
, next
);
945 case 'f': return handle_switch_f(arg
, next
);
946 case 'g': return handle_switch_g(arg
, next
);
947 case 'G': return handle_switch_G(arg
, next
);
948 case 'I': return handle_switch_I(arg
, next
);
949 case 'i': return handle_switch_i(arg
, next
);
950 case 'M': return handle_switch_M(arg
, next
);
951 case 'm': return handle_switch_m(arg
, next
);
952 case 'n': return handle_switch_n(arg
, next
);
953 case 'o': return handle_switch_o(arg
, next
);
954 case 'O': return handle_switch_O(arg
, next
);
955 case 's': return handle_switch_s(arg
, next
);
956 case 'U': return handle_switch_U(arg
, next
);
957 case 'v': return handle_switch_v(arg
, next
);
958 case 'W': return handle_switch_W(arg
, next
);
959 case '-': return handle_long_options(arg
+ 1, next
);
965 * Ignore unknown command line options:
966 * they're probably gcc switches
971 static void predefined_sizeof(const char *name
, unsigned bits
)
973 add_pre_buffer("#weak_define __SIZEOF_%s__ %d\n", name
, bits
/8);
976 static void predefined_max(const char *name
, const char *suffix
, unsigned bits
)
978 unsigned long long max
= (1ULL << (bits
- 1 )) - 1;
980 add_pre_buffer("#weak_define __%s_MAX__ %#llx%s\n", name
, max
, suffix
);
983 static void predefined_type_size(const char *name
, const char *suffix
, unsigned bits
)
985 predefined_max(name
, suffix
, bits
);
986 predefined_sizeof(name
, bits
);
989 static void predefined_macros(void)
991 add_pre_buffer("#define __CHECKER__ 1\n");
993 predefined_sizeof("SHORT", bits_in_short
);
994 predefined_max("SHRT", "", bits_in_short
);
995 predefined_max("SCHAR", "", bits_in_char
);
996 predefined_max("WCHAR", "", bits_in_wchar
);
997 add_pre_buffer("#weak_define __CHAR_BIT__ %d\n", bits_in_char
);
999 predefined_type_size("INT", "", bits_in_int
);
1000 predefined_type_size("LONG", "L", bits_in_long
);
1001 predefined_type_size("LONG_LONG", "LL", bits_in_longlong
);
1003 predefined_sizeof("INT128", 128);
1005 predefined_sizeof("SIZE_T", bits_in_pointer
);
1006 predefined_sizeof("PTRDIFF_T", bits_in_pointer
);
1007 predefined_sizeof("POINTER", bits_in_pointer
);
1009 predefined_sizeof("FLOAT", bits_in_float
);
1010 predefined_sizeof("DOUBLE", bits_in_double
);
1011 predefined_sizeof("LONG_DOUBLE", bits_in_longdouble
);
1013 add_pre_buffer("#weak_define __%s_ENDIAN__ 1\n",
1014 arch_big_endian
? "BIG" : "LITTLE");
1016 add_pre_buffer("#weak_define __ORDER_LITTLE_ENDIAN__ 1234\n");
1017 add_pre_buffer("#weak_define __ORDER_BIG_ENDIAN__ 4321\n");
1018 add_pre_buffer("#weak_define __ORDER_PDP_ENDIAN__ 3412\n");
1019 add_pre_buffer("#weak_define __BYTE_ORDER__ __ORDER_%s_ENDIAN__\n",
1020 arch_big_endian
? "BIG" : "LITTLE");
1023 void declare_builtin_functions(void)
1025 /* Gaah. gcc knows tons of builtin <string.h> functions */
1026 add_pre_buffer("extern void *__builtin_memchr(const void *, int, __SIZE_TYPE__);\n");
1027 add_pre_buffer("extern void *__builtin_memcpy(void *, const void *, __SIZE_TYPE__);\n");
1028 add_pre_buffer("extern void *__builtin_mempcpy(void *, const void *, __SIZE_TYPE__);\n");
1029 add_pre_buffer("extern void *__builtin_memmove(void *, const void *, __SIZE_TYPE__);\n");
1030 add_pre_buffer("extern void *__builtin_memset(void *, int, __SIZE_TYPE__);\n");
1031 add_pre_buffer("extern int __builtin_memcmp(const void *, const void *, __SIZE_TYPE__);\n");
1032 add_pre_buffer("extern char *__builtin_strcat(char *, const char *);\n");
1033 add_pre_buffer("extern char *__builtin_strncat(char *, const char *, __SIZE_TYPE__);\n");
1034 add_pre_buffer("extern int __builtin_strcmp(const char *, const char *);\n");
1035 add_pre_buffer("extern int __builtin_strncmp(const char *, const char *, __SIZE_TYPE__);\n");
1036 add_pre_buffer("extern int __builtin_strcasecmp(const char *, const char *);\n");
1037 add_pre_buffer("extern int __builtin_strncasecmp(const char *, const char *, __SIZE_TYPE__);\n");
1038 add_pre_buffer("extern char *__builtin_strchr(const char *, int);\n");
1039 add_pre_buffer("extern char *__builtin_strrchr(const char *, int);\n");
1040 add_pre_buffer("extern char *__builtin_strcpy(char *, const char *);\n");
1041 add_pre_buffer("extern char *__builtin_strncpy(char *, const char *, __SIZE_TYPE__);\n");
1042 add_pre_buffer("extern char *__builtin_strdup(const char *);\n");
1043 add_pre_buffer("extern char *__builtin_strndup(const char *, __SIZE_TYPE__);\n");
1044 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strspn(const char *, const char *);\n");
1045 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strcspn(const char *, const char *);\n");
1046 add_pre_buffer("extern char * __builtin_strpbrk(const char *, const char *);\n");
1047 add_pre_buffer("extern char* __builtin_stpcpy(const char *, const char*);\n");
1048 add_pre_buffer("extern char* __builtin_stpncpy(const char *, const char*, __SIZE_TYPE__);\n");
1049 add_pre_buffer("extern __SIZE_TYPE__ __builtin_strlen(const char *);\n");
1050 add_pre_buffer("extern char *__builtin_strstr(const char *, const char *);\n");
1051 add_pre_buffer("extern char *__builtin_strcasestr(const char *, const char *);\n");
1052 add_pre_buffer("extern char *__builtin_strnstr(const char *, const char *, __SIZE_TYPE__);\n");
1054 /* And even some from <strings.h> */
1055 add_pre_buffer("extern int __builtin_bcmp(const void *, const void *, __SIZE_TYPE__);\n");
1056 add_pre_buffer("extern void __builtin_bcopy(const void *, void *, __SIZE_TYPE__);\n");
1057 add_pre_buffer("extern void __builtin_bzero(void *, __SIZE_TYPE__);\n");
1058 add_pre_buffer("extern char*__builtin_index(const char *, int);\n");
1059 add_pre_buffer("extern char*__builtin_rindex(const char *, int);\n");
1061 /* And bitwise operations.. */
1062 add_pre_buffer("extern int __builtin_clrsb(int);\n");
1063 add_pre_buffer("extern int __builtin_clrsbl(long);\n");
1064 add_pre_buffer("extern int __builtin_clrsbll(long long);\n");
1065 add_pre_buffer("extern int __builtin_clz(int);\n");
1066 add_pre_buffer("extern int __builtin_clzl(long);\n");
1067 add_pre_buffer("extern int __builtin_clzll(long long);\n");
1068 add_pre_buffer("extern int __builtin_ctz(int);\n");
1069 add_pre_buffer("extern int __builtin_ctzl(long);\n");
1070 add_pre_buffer("extern int __builtin_ctzll(long long);\n");
1071 add_pre_buffer("extern int __builtin_ffs(int);\n");
1072 add_pre_buffer("extern int __builtin_ffsl(long);\n");
1073 add_pre_buffer("extern int __builtin_ffsll(long long);\n");
1074 add_pre_buffer("extern int __builtin_parity(unsigned int);\n");
1075 add_pre_buffer("extern int __builtin_parityl(unsigned long);\n");
1076 add_pre_buffer("extern int __builtin_parityll(unsigned long long);\n");
1077 add_pre_buffer("extern int __builtin_popcount(unsigned int);\n");
1078 add_pre_buffer("extern int __builtin_popcountl(unsigned long);\n");
1079 add_pre_buffer("extern int __builtin_popcountll(unsigned long long);\n");
1081 /* And byte swaps.. */
1082 add_pre_buffer("extern unsigned short __builtin_bswap16(unsigned short);\n");
1083 add_pre_buffer("extern unsigned int __builtin_bswap32(unsigned int);\n");
1084 add_pre_buffer("extern unsigned long long __builtin_bswap64(unsigned long long);\n");
1086 /* And atomic memory access functions.. */
1087 add_pre_buffer("extern int __sync_fetch_and_add(void *, ...);\n");
1088 add_pre_buffer("extern int __sync_fetch_and_sub(void *, ...);\n");
1089 add_pre_buffer("extern int __sync_fetch_and_or(void *, ...);\n");
1090 add_pre_buffer("extern int __sync_fetch_and_and(void *, ...);\n");
1091 add_pre_buffer("extern int __sync_fetch_and_xor(void *, ...);\n");
1092 add_pre_buffer("extern int __sync_fetch_and_nand(void *, ...);\n");
1093 add_pre_buffer("extern int __sync_add_and_fetch(void *, ...);\n");
1094 add_pre_buffer("extern int __sync_sub_and_fetch(void *, ...);\n");
1095 add_pre_buffer("extern int __sync_or_and_fetch(void *, ...);\n");
1096 add_pre_buffer("extern int __sync_and_and_fetch(void *, ...);\n");
1097 add_pre_buffer("extern int __sync_xor_and_fetch(void *, ...);\n");
1098 add_pre_buffer("extern int __sync_nand_and_fetch(void *, ...);\n");
1099 add_pre_buffer("extern int __sync_bool_compare_and_swap(void *, ...);\n");
1100 add_pre_buffer("extern int __sync_val_compare_and_swap(void *, ...);\n");
1101 add_pre_buffer("extern void __sync_synchronize();\n");
1102 add_pre_buffer("extern int __sync_lock_test_and_set(void *, ...);\n");
1103 add_pre_buffer("extern void __sync_lock_release(void *, ...);\n");
1105 /* And some random ones.. */
1106 add_pre_buffer("extern void *__builtin_return_address(unsigned int);\n");
1107 add_pre_buffer("extern void *__builtin_extract_return_addr(void *);\n");
1108 add_pre_buffer("extern void *__builtin_frame_address(unsigned int);\n");
1109 add_pre_buffer("extern void __builtin_trap(void);\n");
1110 add_pre_buffer("extern void *__builtin_alloca(__SIZE_TYPE__);\n");
1111 add_pre_buffer("extern void __builtin_prefetch (const void *, ...);\n");
1112 add_pre_buffer("extern long __builtin_alpha_extbl(long, long);\n");
1113 add_pre_buffer("extern long __builtin_alpha_extwl(long, long);\n");
1114 add_pre_buffer("extern long __builtin_alpha_insbl(long, long);\n");
1115 add_pre_buffer("extern long __builtin_alpha_inswl(long, long);\n");
1116 add_pre_buffer("extern long __builtin_alpha_insql(long, long);\n");
1117 add_pre_buffer("extern long __builtin_alpha_inslh(long, long);\n");
1118 add_pre_buffer("extern long __builtin_alpha_cmpbge(long, long);\n");
1119 add_pre_buffer("extern int __builtin_abs(int);\n");
1120 add_pre_buffer("extern long __builtin_labs(long);\n");
1121 add_pre_buffer("extern long long __builtin_llabs(long long);\n");
1122 add_pre_buffer("extern double __builtin_fabs(double);\n");
1123 add_pre_buffer("extern __SIZE_TYPE__ __builtin_va_arg_pack_len(void);\n");
1125 /* Add Blackfin-specific stuff */
1128 "extern void __builtin_bfin_csync(void);\n"
1129 "extern void __builtin_bfin_ssync(void);\n"
1130 "extern int __builtin_bfin_norm_fr1x32(int);\n"
1134 /* And some floating point stuff.. */
1135 add_pre_buffer("extern int __builtin_isgreater(float, float);\n");
1136 add_pre_buffer("extern int __builtin_isgreaterequal(float, float);\n");
1137 add_pre_buffer("extern int __builtin_isless(float, float);\n");
1138 add_pre_buffer("extern int __builtin_islessequal(float, float);\n");
1139 add_pre_buffer("extern int __builtin_islessgreater(float, float);\n");
1140 add_pre_buffer("extern int __builtin_isunordered(float, float);\n");
1142 /* And some INFINITY / NAN stuff.. */
1143 add_pre_buffer("extern double __builtin_huge_val(void);\n");
1144 add_pre_buffer("extern float __builtin_huge_valf(void);\n");
1145 add_pre_buffer("extern long double __builtin_huge_vall(void);\n");
1146 add_pre_buffer("extern double __builtin_inf(void);\n");
1147 add_pre_buffer("extern float __builtin_inff(void);\n");
1148 add_pre_buffer("extern long double __builtin_infl(void);\n");
1149 add_pre_buffer("extern double __builtin_nan(const char *);\n");
1150 add_pre_buffer("extern float __builtin_nanf(const char *);\n");
1151 add_pre_buffer("extern long double __builtin_nanl(const char *);\n");
1152 add_pre_buffer("extern int __builtin_isinf_sign(float);\n");
1153 add_pre_buffer("extern int __builtin_isfinite(float);\n");
1154 add_pre_buffer("extern int __builtin_isnan(float);\n");
1156 /* And some __FORTIFY_SOURCE ones.. */
1157 add_pre_buffer ("extern __SIZE_TYPE__ __builtin_object_size(const void *, int);\n");
1158 add_pre_buffer ("extern void * __builtin___memcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1159 add_pre_buffer ("extern void * __builtin___memmove_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1160 add_pre_buffer ("extern void * __builtin___mempcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1161 add_pre_buffer ("extern void * __builtin___memset_chk(void *, int, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1162 add_pre_buffer ("extern int __builtin___sprintf_chk(char *, int, __SIZE_TYPE__, const char *, ...);\n");
1163 add_pre_buffer ("extern int __builtin___snprintf_chk(char *, __SIZE_TYPE__, int , __SIZE_TYPE__, const char *, ...);\n");
1164 add_pre_buffer ("extern char * __builtin___stpcpy_chk(char *, const char *, __SIZE_TYPE__);\n");
1165 add_pre_buffer ("extern char * __builtin___strcat_chk(char *, const char *, __SIZE_TYPE__);\n");
1166 add_pre_buffer ("extern char * __builtin___strcpy_chk(char *, const char *, __SIZE_TYPE__);\n");
1167 add_pre_buffer ("extern char * __builtin___strncat_chk(char *, const char *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1168 add_pre_buffer ("extern char * __builtin___strncpy_chk(char *, const char *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
1169 add_pre_buffer ("extern int __builtin___vsprintf_chk(char *, int, __SIZE_TYPE__, const char *, __builtin_va_list);\n");
1170 add_pre_buffer ("extern int __builtin___vsnprintf_chk(char *, __SIZE_TYPE__, int, __SIZE_TYPE__, const char *, __builtin_va_list ap);\n");
1171 add_pre_buffer ("extern void __builtin_unreachable(void);\n");
1173 /* And some from <stdlib.h> */
1174 add_pre_buffer("extern void __builtin_abort(void);\n");
1175 add_pre_buffer("extern void *__builtin_calloc(__SIZE_TYPE__, __SIZE_TYPE__);\n");
1176 add_pre_buffer("extern void __builtin_exit(int);\n");
1177 add_pre_buffer("extern void *__builtin_malloc(__SIZE_TYPE__);\n");
1178 add_pre_buffer("extern void *__builtin_realloc(void *, __SIZE_TYPE__);\n");
1179 add_pre_buffer("extern void __builtin_free(void *);\n");
1181 /* And some from <stdio.h> */
1182 add_pre_buffer("extern int __builtin_printf(const char *, ...);\n");
1183 add_pre_buffer("extern int __builtin_sprintf(char *, const char *, ...);\n");
1184 add_pre_buffer("extern int __builtin_snprintf(char *, __SIZE_TYPE__, const char *, ...);\n");
1185 add_pre_buffer("extern int __builtin_puts(const char *);\n");
1186 add_pre_buffer("extern int __builtin_vprintf(const char *, __builtin_va_list);\n");
1187 add_pre_buffer("extern int __builtin_vsprintf(char *, const char *, __builtin_va_list);\n");
1188 add_pre_buffer("extern int __builtin_vsnprintf(char *, __SIZE_TYPE__, const char *, __builtin_va_list ap);\n");
1191 void create_builtin_stream(void)
1193 add_pre_buffer("#weak_define __GNUC__ %d\n", gcc_major
);
1194 add_pre_buffer("#weak_define __GNUC_MINOR__ %d\n", gcc_minor
);
1195 add_pre_buffer("#weak_define __GNUC_PATCHLEVEL__ %d\n", gcc_patchlevel
);
1197 /* add the multiarch include directories, if any */
1198 if (multiarch_dir
&& *multiarch_dir
) {
1199 add_pre_buffer("#add_system \"/usr/include/%s\"\n", multiarch_dir
);
1200 add_pre_buffer("#add_system \"/usr/local/include/%s\"\n", multiarch_dir
);
1203 /* We add compiler headers path here because we have to parse
1204 * the arguments to get it, falling back to default. */
1205 add_pre_buffer("#add_system \"%s/include\"\n", gcc_base_dir
);
1206 add_pre_buffer("#add_system \"%s/include-fixed\"\n", gcc_base_dir
);
1208 add_pre_buffer("#define __extension__\n");
1209 add_pre_buffer("#define __pragma__\n");
1210 add_pre_buffer("#define _Pragma(x)\n");
1212 // gcc defines __SIZE_TYPE__ to be size_t. For linux/i86 and
1213 // solaris/sparc that is really "unsigned int" and for linux/x86_64
1214 // it is "long unsigned int". In either case we can probably
1215 // get away with this. We need the #weak_define as cgcc will define
1216 // the right __SIZE_TYPE__.
1217 if (size_t_ctype
== &ulong_ctype
)
1218 add_pre_buffer("#weak_define __SIZE_TYPE__ long unsigned int\n");
1220 add_pre_buffer("#weak_define __SIZE_TYPE__ unsigned int\n");
1221 add_pre_buffer("#weak_define __STDC__ 1\n");
1226 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
1230 add_pre_buffer("#weak_define __STDC_VERSION__ 199409L\n");
1231 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
1235 add_pre_buffer("#weak_define __STDC_VERSION__ 199901L\n");
1236 add_pre_buffer("#weak_define __STRICT_ANSI__\n");
1239 case STANDARD_GNU89
:
1242 case STANDARD_GNU99
:
1243 add_pre_buffer("#weak_define __STDC_VERSION__ 199901L\n");
1247 add_pre_buffer("#weak_define __STRICT_ANSI__ 1\n");
1248 case STANDARD_GNU11
:
1249 add_pre_buffer("#weak_define __STDC_NO_ATOMICS__ 1\n");
1250 add_pre_buffer("#weak_define __STDC_NO_COMPLEX__ 1\n");
1251 add_pre_buffer("#weak_define __STDC_NO_THREADS__ 1\n");
1252 add_pre_buffer("#weak_define __STDC_VERSION__ 201112L\n");
1259 add_pre_buffer("#define __builtin_stdarg_start(a,b) ((a) = (__builtin_va_list)(&(b)))\n");
1260 add_pre_buffer("#define __builtin_va_start(a,b) ((a) = (__builtin_va_list)(&(b)))\n");
1261 add_pre_buffer("#define __builtin_ms_va_start(a,b) ((a) = (__builtin_ms_va_list)(&(b)))\n");
1262 add_pre_buffer("#define __builtin_va_arg(arg,type) ({ type __va_arg_ret = *(type *)(arg); arg += sizeof(type); __va_arg_ret; })\n");
1263 add_pre_buffer("#define __builtin_va_alist (*(void *)0)\n");
1264 add_pre_buffer("#define __builtin_va_arg_incr(x) ((x) + 1)\n");
1265 add_pre_buffer("#define __builtin_va_copy(dest, src) ({ dest = src; (void)0; })\n");
1266 add_pre_buffer("#define __builtin_ms_va_copy(dest, src) ({ dest = src; (void)0; })\n");
1267 add_pre_buffer("#define __builtin_va_end(arg)\n");
1268 add_pre_buffer("#define __builtin_ms_va_end(arg)\n");
1269 add_pre_buffer("#define __builtin_va_arg_pack()\n");
1271 /* FIXME! We need to do these as special magic macros at expansion time! */
1272 add_pre_buffer("#define __BASE_FILE__ \"base_file.c\"\n");
1275 add_pre_buffer("#define __OPTIMIZE__ 1\n");
1277 add_pre_buffer("#define __OPTIMIZE_SIZE__ 1\n");
1280 static struct symbol_list
*sparse_tokenstream(struct token
*token
)
1282 int builtin
= token
&& !token
->pos
.stream
;
1284 // Preprocess the stream
1285 token
= preprocess(token
);
1287 if (dump_macro_defs
&& !builtin
)
1288 dump_macro_definitions();
1290 if (preprocess_only
) {
1291 while (!eof_token(token
)) {
1293 struct token
*next
= token
->next
;
1294 const char *separator
= "";
1295 if (next
->pos
.whitespace
)
1297 if (next
->pos
.newline
) {
1298 separator
= "\n\t\t\t\t\t";
1299 prec
= next
->pos
.pos
;
1303 printf("%s%.*s", show_token(token
), prec
, separator
);
1311 // Parse the resulting C code
1312 while (!eof_token(token
))
1313 token
= external_declaration(token
, &translation_unit_used_list
, NULL
);
1314 return translation_unit_used_list
;
1317 static struct symbol_list
*sparse_file(const char *filename
)
1320 struct token
*token
;
1322 if (strcmp (filename
, "-") == 0) {
1325 fd
= open(filename
, O_RDONLY
);
1327 die("No such file: %s", filename
);
1330 // Tokenize the input stream
1331 token
= tokenize(filename
, fd
, NULL
, includepath
);
1332 store_all_tokens(token
);
1335 return sparse_tokenstream(token
);
1339 * This handles the "-include" directive etc: we're in global
1340 * scope, and all types/macros etc will affect all the following
1343 * NOTE NOTE NOTE! "#undef" of anything in this stage will
1344 * affect all subsequent files too, i.e. we can have non-local
1345 * behaviour between files!
1347 static struct symbol_list
*sparse_initial(void)
1351 // Prepend any "include" file to the stream.
1352 // We're in global scope, it will affect all files!
1353 for (i
= 0; i
< cmdline_include_nr
; i
++)
1354 add_pre_buffer("#argv_include \"%s\"\n", cmdline_include
[i
]);
1356 return sparse_tokenstream(pre_buffer_begin
);
1359 struct symbol_list
*sparse_initialize(int argc
, char **argv
, struct string_list
**filelist
)
1362 struct symbol_list
*list
;
1364 // Initialize symbol stream first, so that we can add defines etc
1366 init_include_path();
1370 char *arg
= *++args
;
1374 if (arg
[0] == '-' && arg
[1]) {
1375 args
= handle_switch(arg
+1, args
);
1378 add_ptr_list_notag(filelist
, arg
);
1380 handle_switch_W_finalize();
1381 handle_switch_v_finalize();
1383 handle_arch_finalize();
1386 if (!ptr_list_empty(filelist
)) {
1387 // Initialize type system
1389 handle_funsigned_char();
1391 create_builtin_stream();
1392 predefined_macros();
1393 if (!preprocess_only
)
1394 declare_builtin_functions();
1396 list
= sparse_initial();
1399 * Protect the initial token allocations, since
1400 * they need to survive all the others
1402 protect_token_alloc();
1405 * Evaluate the complete symbol list
1406 * Note: This is not needed for normal cases.
1407 * These symbols should only be predefined defines and
1408 * declaratons which will be evaluated later, when needed.
1409 * This is also the case when a file is directly included via
1410 * '-include <file>' on the command line *AND* the file only
1411 * contains defines, declarations and inline definitions.
1412 * However, in the rare cases where the given file should
1413 * contain some definitions, these will never be evaluated
1414 * and thus won't be able to be linearized correctly.
1415 * Hence the evaluate_symbol_list() here under.
1417 evaluate_symbol_list(list
);
1421 struct symbol_list
* sparse_keep_tokens(char *filename
)
1423 struct symbol_list
*res
;
1425 /* Clear previous symbol list */
1426 translation_unit_used_list
= NULL
;
1429 res
= sparse_file(filename
);
1436 struct symbol_list
* __sparse(char *filename
)
1438 struct symbol_list
*res
;
1440 res
= sparse_keep_tokens(filename
);
1442 /* Drop the tokens for this file after parsing */
1443 clear_token_alloc();
1449 struct symbol_list
* sparse(char *filename
)
1451 struct symbol_list
*res
= __sparse(filename
);
1453 if (has_error
& ERROR_CURR_PHASE
)
1454 has_error
= ERROR_PREV_PHASE
;
1455 /* Evaluate the complete symbol list */
1456 evaluate_symbol_list(res
);