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Fake __has_include handling
[tinycc.git] / tcc.h
blob82d8d977297fbc3670361ee96c323dd40f32f93c
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef _TCC_H
22 #define _TCC_H
23
24 #define _GNU_SOURCE
25 #include "config.h"
26
27 #include <stdarg.h>
28 #include <stdlib.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <math.h>
33 #include <fcntl.h>
34 #include <setjmp.h>
35 #include <time.h>
36
37 #ifndef _WIN32
38 # define WIN32_LEAN_AND_MEAN 1
39 # include <unistd.h>
40 # include <sys/time.h>
41 # ifndef CONFIG_TCC_STATIC
42 # include <dlfcn.h>
43 # endif
44 /* XXX: need to define this to use them in non ISOC99 context */
45 extern float strtof (const char *__nptr, char **__endptr);
46 extern long double strtold (const char *__nptr, char **__endptr);
47 #endif
48
49 #ifdef _WIN32
50 # define WIN32_LEAN_AND_MEAN
51 # include <windows.h>
52 # include <io.h> /* open, close etc. */
53 # include <direct.h> /* getcwd */
54 # ifdef __GNUC__
55 # include <stdint.h>
56 # endif
57 # define inline __inline
58 # define snprintf _snprintf
59 # define vsnprintf _vsnprintf
60 # ifndef __GNUC__
61 # define strtold (long double)strtod
62 # define strtof (float)strtod
63 # define strtoll _strtoi64
64 # define strtoull _strtoui64
65 # endif
66 # ifdef LIBTCC_AS_DLL
67 # define LIBTCCAPI __declspec(dllexport)
68 # define PUB_FUNC LIBTCCAPI
69 # endif
70 # define inp next_inp /* inp is an intrinsic on msvc/mingw */
71 # ifdef _MSC_VER
72 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
73 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
74 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
75 # pragma warning (disable : 4018) // signed/unsigned mismatch
76 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
77 # define ssize_t intptr_t
78 # ifdef _X86_
79 # define __i386__ 1
80 # endif
81 # ifdef _AMD64_
82 # define __x86_64__ 1
83 # endif
84 # endif
85 # undef CONFIG_TCC_STATIC
86 #endif
87
88 #ifndef O_BINARY
89 # define O_BINARY 0
90 #endif
91
92 #ifndef offsetof
93 #define offsetof(type, field) ((size_t) &((type *)0)->field)
94 #endif
95
96 #ifndef countof
97 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
98 #endif
99
100 #ifdef _MSC_VER
101 # define NORETURN __declspec(noreturn)
102 # define ALIGNED(x) __declspec(align(x))
103 # define PRINTF_LIKE(x,y)
104 #else
105 # define NORETURN __attribute__((noreturn))
106 # define ALIGNED(x) __attribute__((aligned(x)))
107 # define PRINTF_LIKE(x,y) __attribute__ ((format (printf, (x), (y))))
108 #endif
109
110 /* gnu headers use to #define __attribute__ to empty for non-gcc compilers */
111 #ifdef __TINYC__
112 # undef __attribute__
113 #endif
114
115 #ifdef _WIN32
116 # define IS_DIRSEP(c) (c == '/' || c == '\\')
117 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
118 # define PATHCMP stricmp
119 # define PATHSEP ";"
120 #else
121 # define IS_DIRSEP(c) (c == '/')
122 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
123 # define PATHCMP strcmp
124 # define PATHSEP ":"
125 #endif
126
127 /* -------------------------------------------- */
128
129 /* parser debug */
130 /* #define PARSE_DEBUG */
131 /* preprocessor debug */
132 /* #define PP_DEBUG */
133 /* include file debug */
134 /* #define INC_DEBUG */
135 /* memory leak debug (only for single threaded usage) */
136 /* #define MEM_DEBUG */
137 /* assembler debug */
138 /* #define ASM_DEBUG */
139
140 /* target selection */
141 /* #define TCC_TARGET_I386 *//* i386 code generator */
142 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
143 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
144 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
145 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
146 /* #define TCC_TARGET_RISCV64 *//* risc-v code generator */
147
148 /* default target is I386 */
149 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
150 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
151 !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_RISCV64)
152 # if defined __x86_64__
153 # define TCC_TARGET_X86_64
154 # elif defined __arm__
155 # define TCC_TARGET_ARM
156 # define TCC_ARM_EABI
157 # define TCC_ARM_VFP
158 # define TCC_ARM_HARDFLOAT
159 # elif defined __aarch64__
160 # define TCC_TARGET_ARM64
161 # elif defined __riscv
162 # define TCC_TARGET_RISCV64
163 # else
164 # define TCC_TARGET_I386
165 # endif
166 # ifdef _WIN32
167 # define TCC_TARGET_PE 1
168 # endif
169 #endif
170
171 /* only native compiler supports -run */
172 #if defined _WIN32 == defined TCC_TARGET_PE
173 # if defined __i386__ && defined TCC_TARGET_I386
174 # define TCC_IS_NATIVE
175 # elif defined __x86_64__ && defined TCC_TARGET_X86_64
176 # define TCC_IS_NATIVE
177 # elif defined __arm__ && defined TCC_TARGET_ARM
178 # define TCC_IS_NATIVE
179 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
180 # define TCC_IS_NATIVE
181 # elif defined __riscv && defined __LP64__ && defined TCC_TARGET_RISCV64
182 # define TCC_IS_NATIVE
183 # endif
184 #endif
185
186 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
187 # define CONFIG_TCC_BACKTRACE
188 # if (defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 || \
189 defined TCC_TARGET_ARM || defined TCC_TARGET_ARM64) || \
190 defined TCC_TARGET_RISCV64 \
191 && !defined TCC_UCLIBC && !defined TCC_MUSL
192 # define CONFIG_TCC_BCHECK /* enable bound checking code */
193 # endif
194 #endif
195
196 /* ------------ path configuration ------------ */
197
198 #ifndef CONFIG_SYSROOT
199 # define CONFIG_SYSROOT ""
200 #endif
201 #ifndef CONFIG_TCCDIR
202 # define CONFIG_TCCDIR "/usr/local/lib/tcc"
203 #endif
204 #ifndef CONFIG_LDDIR
205 # define CONFIG_LDDIR "lib"
206 #endif
207 #ifdef CONFIG_TRIPLET
208 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
209 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
210 #else
211 # define USE_TRIPLET(s) s
212 # define ALSO_TRIPLET(s) s
213 #endif
214
215 /* path to find crt1.o, crti.o and crtn.o */
216 #ifndef CONFIG_TCC_CRTPREFIX
217 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
218 #endif
219
220 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
221
222 /* system include paths */
223 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
224 # if defined TCC_TARGET_PE || defined _WIN32
225 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include"PATHSEP"{B}/include/winapi"
226 # else
227 # define CONFIG_TCC_SYSINCLUDEPATHS \
228 "{B}/include" \
229 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
230 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
231 # endif
232 #endif
233
234 /* library search paths */
235 #ifndef CONFIG_TCC_LIBPATHS
236 # ifdef TCC_TARGET_PE
237 # define CONFIG_TCC_LIBPATHS "{B}/lib"
238 # else
239 # define CONFIG_TCC_LIBPATHS \
240 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
241 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
242 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
243 # endif
244 #endif
245
246 /* name of ELF interpreter */
247 #ifndef CONFIG_TCC_ELFINTERP
248 # if defined __FreeBSD__
249 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
250 # elif defined __FreeBSD_kernel__
251 # if defined(TCC_TARGET_X86_64)
252 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
253 # else
254 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
255 # endif
256 # elif defined __DragonFly__
257 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
258 # elif defined __NetBSD__
259 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
260 # elif defined __GNU__
261 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
262 # elif defined(TCC_TARGET_PE)
263 # define CONFIG_TCC_ELFINTERP "-"
264 # elif defined(TCC_UCLIBC)
265 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
266 # elif defined TCC_TARGET_ARM64
267 # if defined(TCC_MUSL)
268 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
269 # else
270 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
271 # endif
272 # elif defined(TCC_TARGET_X86_64)
273 # if defined(TCC_MUSL)
274 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
275 # else
276 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
277 # endif
278 # elif defined(TCC_TARGET_RISCV64)
279 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-riscv64-lp64d.so.1"
280 # elif !defined(TCC_ARM_EABI)
281 # if defined(TCC_MUSL)
282 # if defined(TCC_TARGET_I386)
283 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-i386.so.1"
284 # else
285 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
286 # endif
287 # else
288 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
289 # endif
290 # endif
291 #endif
292
293 /* var elf_interp dans *-gen.c */
294 #ifdef CONFIG_TCC_ELFINTERP
295 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
296 #else
297 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
298 #endif
299
300 /* (target specific) libtcc1.a */
301 #ifndef TCC_LIBTCC1
302 # define TCC_LIBTCC1 "libtcc1.a"
303 #endif
304
305 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
306 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
307 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
308 #endif
309
310 /* -------------------------------------------- */
311
312 #include "libtcc.h"
313 #include "elf.h"
314 #include "stab.h"
315
316 /* -------------------------------------------- */
317
318 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
319 # define PUB_FUNC
320 #endif
321
322 #ifndef ONE_SOURCE
323 # define ONE_SOURCE 1
324 #endif
325
326 /* support using libtcc from threads */
327 #define CONFIG_TCC_SEMLOCK
328
329 #if ONE_SOURCE
330 #define ST_INLN static inline
331 #define ST_FUNC static
332 #define ST_DATA static
333 #else
334 #define ST_INLN
335 #define ST_FUNC
336 #define ST_DATA extern
337 #endif
338
339 #ifdef TCC_PROFILE /* profile all functions */
340 # define static
341 #endif
342
343 /* -------------------------------------------- */
344 /* include the target specific definitions */
345
346 #define TARGET_DEFS_ONLY
347 #ifdef TCC_TARGET_I386
348 # include "i386-gen.c"
349 # include "i386-link.c"
350 #elif defined TCC_TARGET_X86_64
351 # include "x86_64-gen.c"
352 # include "x86_64-link.c"
353 #elif defined TCC_TARGET_ARM
354 # include "arm-gen.c"
355 # include "arm-link.c"
356 # include "arm-asm.c"
357 #elif defined TCC_TARGET_ARM64
358 # include "arm64-gen.c"
359 # include "arm64-link.c"
360 # include "arm-asm.c"
361 #elif defined TCC_TARGET_C67
362 # define TCC_TARGET_COFF
363 # include "coff.h"
364 # include "c67-gen.c"
365 # include "c67-link.c"
366 #elif defined(TCC_TARGET_RISCV64)
367 # include "riscv64-gen.c"
368 # include "riscv64-link.c"
369 # include "riscv64-asm.c"
370 #else
371 #error unknown target
372 #endif
373 #undef TARGET_DEFS_ONLY
374
375 /* -------------------------------------------- */
376
377 #if PTR_SIZE == 8
378 # define ELFCLASSW ELFCLASS64
379 # define ElfW(type) Elf##64##_##type
380 # define ELFW(type) ELF##64##_##type
381 # define ElfW_Rel ElfW(Rela)
382 # define SHT_RELX SHT_RELA
383 # define REL_SECTION_FMT ".rela%s"
384 #else
385 # define ELFCLASSW ELFCLASS32
386 # define ElfW(type) Elf##32##_##type
387 # define ELFW(type) ELF##32##_##type
388 # define ElfW_Rel ElfW(Rel)
389 # define SHT_RELX SHT_REL
390 # define REL_SECTION_FMT ".rel%s"
391 #endif
392 /* target address type */
393 #define addr_t ElfW(Addr)
394 #define ElfSym ElfW(Sym)
395
396 #if PTR_SIZE == 8 && !defined TCC_TARGET_PE
397 # define LONG_SIZE 8
398 #else
399 # define LONG_SIZE 4
400 #endif
401
402 /* -------------------------------------------- */
403
404 #define INCLUDE_STACK_SIZE 32
405 #define IFDEF_STACK_SIZE 64
406 #define VSTACK_SIZE 256
407 #define STRING_MAX_SIZE 1024
408 #define TOKSTR_MAX_SIZE 256
409 #define PACK_STACK_SIZE 8
410
411 #define TOK_HASH_SIZE 16384 /* must be a power of two */
412 #define TOK_ALLOC_INCR 512 /* must be a power of two */
413 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
414
415 /* token symbol management */
416 typedef struct TokenSym {
417 struct TokenSym *hash_next;
418 struct Sym *sym_define; /* direct pointer to define */
419 struct Sym *sym_label; /* direct pointer to label */
420 struct Sym *sym_struct; /* direct pointer to structure */
421 struct Sym *sym_identifier; /* direct pointer to identifier */
422 int tok; /* token number */
423 int len;
424 char str[1];
425 } TokenSym;
426
427 #ifdef TCC_TARGET_PE
428 typedef unsigned short nwchar_t;
429 #else
430 typedef int nwchar_t;
431 #endif
432
433 typedef struct CString {
434 int size; /* size in bytes */
435 void *data; /* either 'char *' or 'nwchar_t *' */
436 int size_allocated;
437 } CString;
438
439 /* type definition */
440 typedef struct CType {
441 int t;
442 struct Sym *ref;
443 } CType;
444
445 /* constant value */
446 typedef union CValue {
447 long double ld;
448 double d;
449 float f;
450 uint64_t i;
451 struct {
452 const void *data;
453 int size;
454 } str;
455 int tab[LDOUBLE_SIZE/4];
456 } CValue;
457
458 /* value on stack */
459 typedef struct SValue {
460 CType type; /* type */
461 unsigned short r; /* register + flags */
462 unsigned short r2; /* second register, used for 'long long'
463 type. If not used, set to VT_CONST */
464 union {
465 struct { int jtrue, jfalse; }; /* forward jmps */
466 CValue c; /* constant, if VT_CONST */
467 };
468 union {
469 struct { unsigned short cmp_op, cmp_r; }; /* VT_CMP operation */
470 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if */
471 }; /* result of unary() for an identifier. */
472
473 } SValue;
474
475 /* symbol attributes */
476 struct SymAttr {
477 unsigned short
478 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
479 packed : 1,
480 weak : 1,
481 visibility : 2,
482 dllexport : 1,
483 nodecorate : 1,
484 dllimport : 1,
485 addrtaken : 1,
486 xxxx : 3; /* not used */
487 };
488
489 /* function attributes or temporary attributes for parsing */
490 struct FuncAttr {
491 unsigned
492 func_call : 3, /* calling convention (0..5), see below */
493 func_type : 2, /* FUNC_OLD/NEW/ELLIPSIS */
494 func_noreturn : 1, /* attribute((noreturn)) */
495 func_ctor : 1, /* attribute((constructor)) */
496 func_dtor : 1, /* attribute((destructor)) */
497 func_args : 8; /* PE __stdcall args */
498 };
499
500 /* symbol management */
501 typedef struct Sym {
502 int v; /* symbol token */
503 unsigned short r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
504 struct SymAttr a; /* symbol attributes */
505 union {
506 struct {
507 int c; /* associated number or Elf symbol index */
508 union {
509 int sym_scope; /* scope level for locals */
510 int jnext; /* next jump label */
511 struct FuncAttr f; /* function attributes */
512 int auxtype; /* bitfield access type */
513 };
514 };
515 long long enum_val; /* enum constant if IS_ENUM_VAL */
516 int *d; /* define token stream */
517 struct Sym *ncl; /* next cleanup */
518 };
519 CType type; /* associated type */
520 union {
521 struct Sym *next; /* next related symbol (for fields and anoms) */
522 struct Sym *cleanupstate; /* in defined labels */
523 int asm_label; /* associated asm label */
524 };
525 struct Sym *prev; /* prev symbol in stack */
526 struct Sym *prev_tok; /* previous symbol for this token */
527 } Sym;
528
529 /* section definition */
530 typedef struct Section {
531 unsigned long data_offset; /* current data offset */
532 unsigned char *data; /* section data */
533 unsigned long data_allocated; /* used for realloc() handling */
534 TCCState *s1;
535 int sh_name; /* elf section name (only used during output) */
536 int sh_num; /* elf section number */
537 int sh_type; /* elf section type */
538 int sh_flags; /* elf section flags */
539 int sh_info; /* elf section info */
540 int sh_addralign; /* elf section alignment */
541 int sh_entsize; /* elf entry size */
542 unsigned long sh_size; /* section size (only used during output) */
543 addr_t sh_addr; /* address at which the section is relocated */
544 unsigned long sh_offset; /* file offset */
545 int nb_hashed_syms; /* used to resize the hash table */
546 struct Section *link; /* link to another section */
547 struct Section *reloc; /* corresponding section for relocation, if any */
548 struct Section *hash; /* hash table for symbols */
549 struct Section *prev; /* previous section on section stack */
550 char name[1]; /* section name */
551 } Section;
552
553 typedef struct DLLReference {
554 int level;
555 void *handle;
556 char name[1];
557 } DLLReference;
558
559 /* -------------------------------------------------- */
560
561 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
562 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
563 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
564
565 /* stored in 'Sym->f.func_type' field */
566 #define FUNC_NEW 1 /* ansi function prototype */
567 #define FUNC_OLD 2 /* old function prototype */
568 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
569
570 /* stored in 'Sym->f.func_call' field */
571 #define FUNC_CDECL 0 /* standard c call */
572 #define FUNC_STDCALL 1 /* pascal c call */
573 #define FUNC_FASTCALL1 2 /* first param in %eax */
574 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
575 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
576 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
577
578 /* field 'Sym.t' for macros */
579 #define MACRO_OBJ 0 /* object like macro */
580 #define MACRO_FUNC 1 /* function like macro */
581
582 /* field 'Sym.r' for C labels */
583 #define LABEL_DEFINED 0 /* label is defined */
584 #define LABEL_FORWARD 1 /* label is forward defined */
585 #define LABEL_DECLARED 2 /* label is declared but never used */
586 #define LABEL_GONE 3 /* label isn't in scope, but not yet popped
587 from local_label_stack (stmt exprs) */
588
589 /* type_decl() types */
590 #define TYPE_ABSTRACT 1 /* type without variable */
591 #define TYPE_DIRECT 2 /* type with variable */
592
593 #define IO_BUF_SIZE 8192
594
595 typedef struct BufferedFile {
596 uint8_t *buf_ptr;
597 uint8_t *buf_end;
598 int fd;
599 struct BufferedFile *prev;
600 int line_num; /* current line number - here to simplify code */
601 int line_ref; /* tcc -E: last printed line */
602 int ifndef_macro; /* #ifndef macro / #endif search */
603 int ifndef_macro_saved; /* saved ifndef_macro */
604 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
605 int include_next_index; /* next search path */
606 char filename[1024]; /* filename */
607 char *true_filename; /* filename not modified by # line directive */
608 unsigned char unget[4];
609 unsigned char buffer[1]; /* extra size for CH_EOB char */
610 } BufferedFile;
611
612 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
613 #define CH_EOF (-1) /* end of file */
614
615 /* used to record tokens */
616 typedef struct TokenString {
617 int *str;
618 int len;
619 int lastlen;
620 int allocated_len;
621 int last_line_num;
622 int save_line_num;
623 /* used to chain token-strings with begin/end_macro() */
624 struct TokenString *prev;
625 const int *prev_ptr;
626 char alloc;
627 } TokenString;
628
629 /* GNUC attribute definition */
630 typedef struct AttributeDef {
631 struct SymAttr a;
632 struct FuncAttr f;
633 struct Section *section;
634 Sym *cleanup_func;
635 int alias_target; /* token */
636 int asm_label; /* associated asm label */
637 char attr_mode; /* __attribute__((__mode__(...))) */
638 } AttributeDef;
639
640 /* inline functions */
641 typedef struct InlineFunc {
642 TokenString *func_str;
643 Sym *sym;
644 char filename[1];
645 } InlineFunc;
646
647 /* include file cache, used to find files faster and also to eliminate
648 inclusion if the include file is protected by #ifndef ... #endif */
649 typedef struct CachedInclude {
650 int ifndef_macro;
651 int once;
652 int hash_next; /* -1 if none */
653 char filename[1]; /* path specified in #include */
654 } CachedInclude;
655
656 #define CACHED_INCLUDES_HASH_SIZE 32
657
658 #ifdef CONFIG_TCC_ASM
659 typedef struct ExprValue {
660 uint64_t v;
661 Sym *sym;
662 int pcrel;
663 } ExprValue;
664
665 #define MAX_ASM_OPERANDS 30
666 typedef struct ASMOperand {
667 int id; /* GCC 3 optional identifier (0 if number only supported */
668 char *constraint;
669 char asm_str[16]; /* computed asm string for operand */
670 SValue *vt; /* C value of the expression */
671 int ref_index; /* if >= 0, gives reference to a output constraint */
672 int input_index; /* if >= 0, gives reference to an input constraint */
673 int priority; /* priority, used to assign registers */
674 int reg; /* if >= 0, register number used for this operand */
675 int is_llong; /* true if double register value */
676 int is_memory; /* true if memory operand */
677 int is_rw; /* for '+' modifier */
678 } ASMOperand;
679 #endif
680
681 /* extra symbol attributes (not in symbol table) */
682 struct sym_attr {
683 unsigned got_offset;
684 unsigned plt_offset;
685 int plt_sym;
686 int dyn_index;
687 #ifdef TCC_TARGET_ARM
688 unsigned char plt_thumb_stub:1;
689 #endif
690 };
691
692 struct TCCState {
693 unsigned char verbose; /* if true, display some information during compilation */
694 unsigned char nostdinc; /* if true, no standard headers are added */
695 unsigned char nostdlib; /* if true, no standard libraries are added */
696 unsigned char nocommon; /* if true, do not use common symbols for .bss data */
697 unsigned char static_link; /* if true, static linking is performed */
698 unsigned char rdynamic; /* if true, all symbols are exported */
699 unsigned char symbolic; /* if true, resolve symbols in the current module first */
700 unsigned char filetype; /* file type for compilation (NONE,C,ASM) */
701 unsigned char optimize; /* only to #define __OPTIMIZE__ */
702 unsigned char option_pthread; /* -pthread option */
703 unsigned char enable_new_dtags; /* -Wl,--enable-new-dtags */
704 unsigned int cversion; /* supported C ISO version, 199901 (the default), 201112, ... */
705
706 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
707 char *soname; /* as specified on the command line (-soname) */
708 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
709
710 /* output type, see TCC_OUTPUT_XXX */
711 int output_type;
712 /* output format, see TCC_OUTPUT_FORMAT_xxx */
713 int output_format;
714
715 /* C language options */
716 unsigned char char_is_unsigned;
717 unsigned char leading_underscore;
718 unsigned char ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
719 unsigned char dollars_in_identifiers; /* allows '$' char in identifiers */
720 unsigned char ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
721
722 /* warning switches */
723 unsigned char warn_write_strings;
724 unsigned char warn_unsupported;
725 unsigned char warn_error;
726 unsigned char warn_none;
727 unsigned char warn_implicit_function_declaration;
728 unsigned char warn_gcc_compat;
729
730 /* compile with debug symbol (and use them if error during execution) */
731 unsigned char do_debug;
732 unsigned char do_backtrace;
733 #ifdef CONFIG_TCC_BCHECK
734 /* compile with built-in memory and bounds checker */
735 unsigned char do_bounds_check;
736 #endif
737 #ifdef TCC_TARGET_ARM
738 enum float_abi float_abi; /* float ABI of the generated code*/
739 #endif
740 int run_test; /* nth test to run with -dt -run */
741
742 addr_t text_addr; /* address of text section */
743 unsigned char has_text_addr;
744
745 unsigned section_align; /* section alignment */
746
747 /* use GNU C extensions */
748 unsigned char gnu_ext;
749 /* use TinyCC extensions */
750 unsigned char tcc_ext;
751
752 char *init_symbol; /* symbols to call at load-time (not used currently) */
753 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
754
755 #ifdef TCC_TARGET_I386
756 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
757 #endif
758 #ifdef TCC_TARGET_X86_64
759 unsigned char nosse; /* For -mno-sse support. */
760 #endif
761
762 /* array of all loaded dlls (including those referenced by loaded dlls) */
763 DLLReference **loaded_dlls;
764 int nb_loaded_dlls;
765
766 /* include paths */
767 char **include_paths;
768 int nb_include_paths;
769
770 char **sysinclude_paths;
771 int nb_sysinclude_paths;
772
773 /* library paths */
774 char **library_paths;
775 int nb_library_paths;
776
777 /* crt?.o object path */
778 char **crt_paths;
779 int nb_crt_paths;
780
781 /* -D / -U options */
782 CString cmdline_defs;
783 /* -include options */
784 CString cmdline_incl;
785
786 /* error handling */
787 void *error_opaque;
788 void (*error_func)(void *opaque, const char *msg);
789 int error_set_jmp_enabled;
790 jmp_buf error_jmp_buf;
791 int nb_errors;
792
793 /* output file for preprocessing (-E) */
794 FILE *ppfp;
795 enum {
796 LINE_MACRO_OUTPUT_FORMAT_GCC,
797 LINE_MACRO_OUTPUT_FORMAT_NONE,
798 LINE_MACRO_OUTPUT_FORMAT_STD,
799 LINE_MACRO_OUTPUT_FORMAT_P10 = 11
800 } Pflag; /* -P switch */
801 char dflag; /* -dX value */
802
803 /* for -MD/-MF: collected dependencies for this compilation */
804 char **target_deps;
805 int nb_target_deps;
806
807 /* compilation */
808 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
809 BufferedFile **include_stack_ptr;
810
811 int ifdef_stack[IFDEF_STACK_SIZE];
812 int *ifdef_stack_ptr;
813
814 /* included files enclosed with #ifndef MACRO */
815 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
816 CachedInclude **cached_includes;
817 int nb_cached_includes;
818
819 /* #pragma pack stack */
820 int pack_stack[PACK_STACK_SIZE];
821 int *pack_stack_ptr;
822 char **pragma_libs;
823 int nb_pragma_libs;
824
825 /* inline functions are stored as token lists and compiled last
826 only if referenced */
827 struct InlineFunc **inline_fns;
828 int nb_inline_fns;
829
830 /* sections */
831 Section **sections;
832 int nb_sections; /* number of sections, including first dummy section */
833
834 Section **priv_sections;
835 int nb_priv_sections; /* number of private sections */
836
837 /* got & plt handling */
838 Section *got;
839 Section *plt;
840
841 /* predefined sections */
842 Section *text_section, *data_section, *bss_section;
843 Section *common_section;
844 Section *cur_text_section; /* current section where function code is generated */
845 #ifdef CONFIG_TCC_BCHECK
846 /* bound check related sections */
847 Section *bounds_section; /* contains global data bound description */
848 Section *lbounds_section; /* contains local data bound description */
849 #endif
850 /* symbol sections */
851 Section *symtab_section;
852 /* debug sections */
853 Section *stab_section;
854 /* Is there a new undefined sym since last new_undef_sym() */
855 int new_undef_sym;
856
857 /* temporary dynamic symbol sections (for dll loading) */
858 Section *dynsymtab_section;
859 /* exported dynamic symbol section */
860 Section *dynsym;
861 /* copy of the global symtab_section variable */
862 Section *symtab;
863 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
864 struct sym_attr *sym_attrs;
865 int nb_sym_attrs;
866 /* ptr to next reloc entry reused */
867 ElfW_Rel *qrel;
868 # define qrel s1->qrel
869
870 #ifdef TCC_TARGET_PE
871 /* PE info */
872 int pe_subsystem;
873 unsigned pe_characteristics;
874 unsigned pe_file_align;
875 unsigned pe_stack_size;
876 addr_t pe_imagebase;
877 # ifdef TCC_TARGET_X86_64
878 Section *uw_pdata;
879 int uw_sym;
880 unsigned uw_offs;
881 # endif
882 # define ELF_OBJ_ONLY
883 #endif
884
885 #ifndef ELF_OBJ_ONLY
886 int nb_sym_versions;
887 struct sym_version *sym_versions;
888 int nb_sym_to_version;
889 int *sym_to_version;
890 int dt_verneednum;
891 Section *versym_section;
892 Section *verneed_section;
893 #endif
894
895 #ifdef TCC_IS_NATIVE
896 const char *runtime_main;
897 void **runtime_mem;
898 int nb_runtime_mem;
899 #endif
900
901 #ifdef CONFIG_TCC_BACKTRACE
902 int rt_num_callers;
903 #endif
904
905 int fd, cc; /* used by tcc_load_ldscript */
906
907 /* benchmark info */
908 int total_idents;
909 int total_lines;
910 int total_bytes;
911
912 /* option -dnum (for general development purposes) */
913 int g_debug;
914
915 /* for warnings/errors for object files*/
916 const char *current_filename;
917
918 /* used by main and tcc_parse_args only */
919 struct filespec **files; /* files seen on command line */
920 int nb_files; /* number thereof */
921 int nb_libraries; /* number of libs thereof */
922 char *outfile; /* output filename */
923 unsigned char option_r; /* option -r */
924 unsigned char do_bench; /* option -bench */
925 int gen_deps; /* option -MD */
926 char *deps_outfile; /* option -MF */
927 int argc;
928 char **argv;
929 };
930
931 struct filespec {
932 char type;
933 char name[1];
934 };
935
936 /* The current value can be: */
937 #define VT_VALMASK 0x003f /* mask for value location, register or: */
938 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
939 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
940 #define VT_LOCAL 0x0032 /* offset on stack */
941 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
942 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
943 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
944 #define VT_LVAL 0x0100 /* var is an lvalue */
945 #define VT_SYM 0x0200 /* a symbol value is added */
946 #define VT_MUSTCAST 0x0C00 /* value must be casted to be correct (used for
947 char/short stored in integer registers) */
948 #define VT_MUSTBOUND 0x4000 /* bound checking must be done before
949 dereferencing value */
950 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
951 bounding function call point is in vc */
952 /* types */
953 #define VT_BTYPE 0x000f /* mask for basic type */
954 #define VT_VOID 0 /* void type */
955 #define VT_BYTE 1 /* signed byte type */
956 #define VT_SHORT 2 /* short type */
957 #define VT_INT 3 /* integer type */
958 #define VT_LLONG 4 /* 64 bit integer */
959 #define VT_PTR 5 /* pointer */
960 #define VT_FUNC 6 /* function type */
961 #define VT_STRUCT 7 /* struct/union definition */
962 #define VT_FLOAT 8 /* IEEE float */
963 #define VT_DOUBLE 9 /* IEEE double */
964 #define VT_LDOUBLE 10 /* IEEE long double */
965 #define VT_BOOL 11 /* ISOC99 boolean type */
966 #define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
967 #define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
968
969 #define VT_UNSIGNED 0x0010 /* unsigned type */
970 #define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
971 #define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
972 #define VT_BITFIELD 0x0080 /* bitfield modifier */
973 #define VT_CONSTANT 0x0100 /* const modifier */
974 #define VT_VOLATILE 0x0200 /* volatile modifier */
975 #define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
976 #define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
977
978 /* storage */
979 #define VT_EXTERN 0x00001000 /* extern definition */
980 #define VT_STATIC 0x00002000 /* static variable */
981 #define VT_TYPEDEF 0x00004000 /* typedef definition */
982 #define VT_INLINE 0x00008000 /* inline definition */
983 /* currently unused: 0x000[1248]0000 */
984
985 #define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
986 #define VT_STRUCT_MASK (((1U << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
987 #define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
988 #define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
989
990 #define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
991 #define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
992 #define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
993
994 #define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
995 #define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
996 #define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
997
998 /* type mask (except storage) */
999 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
1000 #define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
1001
1002 /* symbol was created by tccasm.c first */
1003 #define VT_ASM (VT_VOID | VT_UNSIGNED)
1004 #define IS_ASM_SYM(sym) (((sym)->type.t & (VT_BTYPE | VT_ASM)) == VT_ASM)
1005
1006 /* general: set/get the pseudo-bitfield value for bit-mask M */
1007 #define BFVAL(M,N) ((unsigned)((M) & ~((M) << 1)) * (N))
1008 #define BFGET(X,M) (((X) & (M)) / BFVAL(M,1))
1009 #define BFSET(X,M,N) ((X) = ((X) & ~(M)) | BFVAL(M,N))
1010
1011 /* token values */
1012
1013 /* conditional ops */
1014 #define TOK_LAND 0x90
1015 #define TOK_LOR 0x91
1016 /* warning: the following compare tokens depend on i386 asm code */
1017 #define TOK_ULT 0x92
1018 #define TOK_UGE 0x93
1019 #define TOK_EQ 0x94
1020 #define TOK_NE 0x95
1021 #define TOK_ULE 0x96
1022 #define TOK_UGT 0x97
1023 #define TOK_Nset 0x98
1024 #define TOK_Nclear 0x99
1025 #define TOK_LT 0x9c
1026 #define TOK_GE 0x9d
1027 #define TOK_LE 0x9e
1028 #define TOK_GT 0x9f
1029
1030 #define TOK_ISCOND(t) (t >= TOK_LAND && t <= TOK_GT)
1031
1032 #define TOK_DEC 0x80 /* -- */
1033 #define TOK_MID 0x81 /* inc/dec, to void constant */
1034 #define TOK_INC 0x82 /* ++ */
1035 #define TOK_UDIV 0x83 /* unsigned division */
1036 #define TOK_UMOD 0x84 /* unsigned modulo */
1037 #define TOK_PDIV 0x85 /* fast division with undefined rounding for pointers */
1038 #define TOK_UMULL 0x86 /* unsigned 32x32 -> 64 mul */
1039 #define TOK_ADDC1 0x87 /* add with carry generation */
1040 #define TOK_ADDC2 0x88 /* add with carry use */
1041 #define TOK_SUBC1 0x89 /* add with carry generation */
1042 #define TOK_SUBC2 0x8a /* add with carry use */
1043 #define TOK_SHL '<' /* shift left */
1044 #define TOK_SAR '>' /* signed shift right */
1045 #define TOK_SHR 0x8b /* unsigned shift right */
1046
1047 #define TOK_ARROW 0xa0 /* -> */
1048 #define TOK_DOTS 0xa1 /* three dots */
1049 #define TOK_TWODOTS 0xa2 /* C++ token ? */
1050 #define TOK_TWOSHARPS 0xa3 /* ## preprocessing token */
1051 #define TOK_PLCHLDR 0xa4 /* placeholder token as defined in C99 */
1052 #define TOK_NOSUBST 0xa5 /* means following token has already been pp'd */
1053 #define TOK_PPJOIN 0xa6 /* A '##' in the right position to mean pasting */
1054
1055 /* assignment operators */
1056 #define TOK_A_ADD 0xb0
1057 #define TOK_A_SUB 0xb1
1058 #define TOK_A_MUL 0xb2
1059 #define TOK_A_DIV 0xb3
1060 #define TOK_A_MOD 0xb4
1061 #define TOK_A_AND 0xb5
1062 #define TOK_A_OR 0xb6
1063 #define TOK_A_XOR 0xb7
1064 #define TOK_A_SHL 0xb8
1065 #define TOK_A_SAR 0xb9
1066
1067 #define TOK_ASSIGN(t) (t >= TOK_A_ADD && t <= TOK_A_SAR)
1068 #define TOK_ASSIGN_OP(t) ("+-*/%&|^<>"[t - TOK_A_ADD])
1069
1070 /* tokens that carry values (in additional token string space / tokc) --> */
1071 #define TOK_CCHAR 0xc0 /* char constant in tokc */
1072 #define TOK_LCHAR 0xc1
1073 #define TOK_CINT 0xc2 /* number in tokc */
1074 #define TOK_CUINT 0xc3 /* unsigned int constant */
1075 #define TOK_CLLONG 0xc4 /* long long constant */
1076 #define TOK_CULLONG 0xc5 /* unsigned long long constant */
1077 #define TOK_CLONG 0xc6 /* long constant */
1078 #define TOK_CULONG 0xc7 /* unsigned long constant */
1079 #define TOK_STR 0xc8 /* pointer to string in tokc */
1080 #define TOK_LSTR 0xc9
1081 #define TOK_CFLOAT 0xca /* float constant */
1082 #define TOK_CDOUBLE 0xcb /* double constant */
1083 #define TOK_CLDOUBLE 0xcc /* long double constant */
1084 #define TOK_PPNUM 0xcd /* preprocessor number */
1085 #define TOK_PPSTR 0xce /* preprocessor string */
1086 #define TOK_LINENUM 0xcf /* line number info */
1087
1088 #define TOK_HAS_VALUE(t) (t >= TOK_CCHAR && t <= TOK_LINENUM)
1089
1090 #define TOK_EOF (-1) /* end of file */
1091 #define TOK_LINEFEED 10 /* line feed */
1092
1093 /* all identifiers and strings have token above that */
1094 #define TOK_IDENT 256
1095
1096 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
1097 #define TOK_ASM_int TOK_INT
1098 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
1099 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
1100 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
1101
1102 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1103 /* only used for i386 asm opcodes definitions */
1104 #define DEF_BWL(x) \
1105 DEF(TOK_ASM_ ## x ## b, #x "b") \
1106 DEF(TOK_ASM_ ## x ## w, #x "w") \
1107 DEF(TOK_ASM_ ## x ## l, #x "l") \
1108 DEF(TOK_ASM_ ## x, #x)
1109 #define DEF_WL(x) \
1110 DEF(TOK_ASM_ ## x ## w, #x "w") \
1111 DEF(TOK_ASM_ ## x ## l, #x "l") \
1112 DEF(TOK_ASM_ ## x, #x)
1113 #ifdef TCC_TARGET_X86_64
1114 # define DEF_BWLQ(x) \
1115 DEF(TOK_ASM_ ## x ## b, #x "b") \
1116 DEF(TOK_ASM_ ## x ## w, #x "w") \
1117 DEF(TOK_ASM_ ## x ## l, #x "l") \
1118 DEF(TOK_ASM_ ## x ## q, #x "q") \
1119 DEF(TOK_ASM_ ## x, #x)
1120 # define DEF_WLQ(x) \
1121 DEF(TOK_ASM_ ## x ## w, #x "w") \
1122 DEF(TOK_ASM_ ## x ## l, #x "l") \
1123 DEF(TOK_ASM_ ## x ## q, #x "q") \
1124 DEF(TOK_ASM_ ## x, #x)
1125 # define DEF_BWLX DEF_BWLQ
1126 # define DEF_WLX DEF_WLQ
1127 /* number of sizes + 1 */
1128 # define NBWLX 5
1129 #else
1130 # define DEF_BWLX DEF_BWL
1131 # define DEF_WLX DEF_WL
1132 /* number of sizes + 1 */
1133 # define NBWLX 4
1134 #endif
1135
1136 #define DEF_FP1(x) \
1137 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
1138 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
1139 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
1140 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
1141
1142 #define DEF_FP(x) \
1143 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
1144 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1145 DEF_FP1(x)
1146
1147 #define DEF_ASMTEST(x,suffix) \
1148 DEF_ASM(x ## o ## suffix) \
1149 DEF_ASM(x ## no ## suffix) \
1150 DEF_ASM(x ## b ## suffix) \
1151 DEF_ASM(x ## c ## suffix) \
1152 DEF_ASM(x ## nae ## suffix) \
1153 DEF_ASM(x ## nb ## suffix) \
1154 DEF_ASM(x ## nc ## suffix) \
1155 DEF_ASM(x ## ae ## suffix) \
1156 DEF_ASM(x ## e ## suffix) \
1157 DEF_ASM(x ## z ## suffix) \
1158 DEF_ASM(x ## ne ## suffix) \
1159 DEF_ASM(x ## nz ## suffix) \
1160 DEF_ASM(x ## be ## suffix) \
1161 DEF_ASM(x ## na ## suffix) \
1162 DEF_ASM(x ## nbe ## suffix) \
1163 DEF_ASM(x ## a ## suffix) \
1164 DEF_ASM(x ## s ## suffix) \
1165 DEF_ASM(x ## ns ## suffix) \
1166 DEF_ASM(x ## p ## suffix) \
1167 DEF_ASM(x ## pe ## suffix) \
1168 DEF_ASM(x ## np ## suffix) \
1169 DEF_ASM(x ## po ## suffix) \
1170 DEF_ASM(x ## l ## suffix) \
1171 DEF_ASM(x ## nge ## suffix) \
1172 DEF_ASM(x ## nl ## suffix) \
1173 DEF_ASM(x ## ge ## suffix) \
1174 DEF_ASM(x ## le ## suffix) \
1175 DEF_ASM(x ## ng ## suffix) \
1176 DEF_ASM(x ## nle ## suffix) \
1177 DEF_ASM(x ## g ## suffix)
1178
1179 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1180
1181 enum tcc_token {
1182 TOK_LAST = TOK_IDENT - 1
1183 #define DEF(id, str) ,id
1184 #include "tcctok.h"
1185 #undef DEF
1186 };
1187
1188 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1189 #define TOK_UIDENT TOK_DEFINE
1190
1191 /* ------------ libtcc.c ------------ */
1192
1193 ST_DATA struct TCCState *tcc_state;
1194
1195 /* public functions currently used by the tcc main function */
1196 ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s);
1197 ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s);
1198 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1199 PUB_FUNC char *tcc_basename(const char *name);
1200 PUB_FUNC char *tcc_fileextension (const char *name);
1201
1202 #ifndef MEM_DEBUG
1203 PUB_FUNC void tcc_free(void *ptr);
1204 PUB_FUNC void *tcc_malloc(unsigned long size);
1205 PUB_FUNC void *tcc_mallocz(unsigned long size);
1206 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1207 PUB_FUNC char *tcc_strdup(const char *str);
1208 #else
1209 #define tcc_free(ptr) tcc_free_debug(ptr)
1210 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1211 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1212 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1213 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1214 PUB_FUNC void tcc_free_debug(void *ptr);
1215 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1216 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1217 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1218 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1219 #endif
1220
1221 #define free(p) use_tcc_free(p)
1222 #define malloc(s) use_tcc_malloc(s)
1223 #define realloc(p, s) use_tcc_realloc(p, s)
1224 #undef strdup
1225 #define strdup(s) use_tcc_strdup(s)
1226 PUB_FUNC void _tcc_error_noabort(const char *fmt, ...) PRINTF_LIKE(1,2);
1227 PUB_FUNC NORETURN void _tcc_error(const char *fmt, ...) PRINTF_LIKE(1,2);
1228 PUB_FUNC void _tcc_warning(const char *fmt, ...) PRINTF_LIKE(1,2);
1229
1230 /* other utilities */
1231 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1232 ST_FUNC void dynarray_reset(void *pp, int *n);
1233 ST_INLN void cstr_ccat(CString *cstr, int ch);
1234 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1235 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1236 ST_FUNC void cstr_new(CString *cstr);
1237 ST_FUNC void cstr_free(CString *cstr);
1238 ST_FUNC int cstr_printf(CString *cs, const char *fmt, ...) PRINTF_LIKE(2,3);
1239 ST_FUNC void cstr_reset(CString *cstr);
1240
1241 ST_INLN void sym_free(Sym *sym);
1242 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, int c);
1243 ST_FUNC Sym *sym_find2(Sym *s, int v);
1244 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1245 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1246 ST_INLN Sym *struct_find(int v);
1247 ST_INLN Sym *sym_find(int v);
1248 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1249
1250 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1251 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1252 ST_FUNC void tcc_close(void);
1253
1254 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1255 /* flags: */
1256 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1257 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1258 #define AFF_TYPE_BIN 0x40 /* file to add is binary */
1259 #define AFF_WHOLE_ARCHIVE 0x80 /* load all objects from archive */
1260 /* s->filetype: */
1261 #define AFF_TYPE_NONE 0
1262 #define AFF_TYPE_C 1
1263 #define AFF_TYPE_ASM 2
1264 #define AFF_TYPE_ASMPP 4
1265 #define AFF_TYPE_LIB 8
1266 #define AFF_TYPE_MASK (15 | AFF_TYPE_BIN)
1267 /* values from tcc_object_type(...) */
1268 #define AFF_BINTYPE_REL 1
1269 #define AFF_BINTYPE_DYN 2
1270 #define AFF_BINTYPE_AR 3
1271 #define AFF_BINTYPE_C67 4
1272
1273
1274 #ifndef TCC_TARGET_PE
1275 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1276 #endif
1277 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1278 #ifdef CONFIG_TCC_BCHECK
1279 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1280 #endif
1281 #ifdef CONFIG_TCC_BACKTRACE
1282 ST_FUNC void tcc_add_btstub(TCCState *s1);
1283 #endif
1284 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1285 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1286 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1287 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1288 #ifdef _WIN32
1289 ST_FUNC char *normalize_slashes(char *path);
1290 #endif
1291
1292 /* tcc_parse_args return codes: */
1293 #define OPT_HELP 1
1294 #define OPT_HELP2 2
1295 #define OPT_V 3
1296 #define OPT_PRINT_DIRS 4
1297 #define OPT_AR 5
1298 #define OPT_IMPDEF 6
1299 #define OPT_M32 32
1300 #define OPT_M64 64
1301
1302 /* ------------ tccpp.c ------------ */
1303
1304 ST_DATA struct BufferedFile *file;
1305 ST_DATA int ch, tok;
1306 ST_DATA CValue tokc;
1307 ST_DATA const int *macro_ptr;
1308 ST_DATA int parse_flags;
1309 ST_DATA int tok_flags;
1310 ST_DATA CString tokcstr; /* current parsed string, if any */
1311
1312 /* display benchmark infos */
1313 ST_DATA int tok_ident;
1314 ST_DATA TokenSym **table_ident;
1315
1316 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1317 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1318 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1319 #define TOK_FLAG_EOF 0x0008 /* end of file */
1320
1321 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1322 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1323 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1324 token. line feed is also
1325 returned at eof */
1326 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1327 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1328 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1329 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1330
1331 /* isidnum_table flags: */
1332 #define IS_SPC 1
1333 #define IS_ID 2
1334 #define IS_NUM 4
1335
1336 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1337 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1338 ST_FUNC void begin_macro(TokenString *str, int alloc);
1339 ST_FUNC void end_macro(void);
1340 ST_FUNC int set_idnum(int c, int val);
1341 ST_INLN void tok_str_new(TokenString *s);
1342 ST_FUNC TokenString *tok_str_alloc(void);
1343 ST_FUNC void tok_str_free(TokenString *s);
1344 ST_FUNC void tok_str_free_str(int *str);
1345 ST_FUNC void tok_str_add(TokenString *s, int t);
1346 ST_FUNC void tok_str_add_tok(TokenString *s);
1347 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1348 ST_FUNC void define_undef(Sym *s);
1349 ST_INLN Sym *define_find(int v);
1350 ST_FUNC void free_defines(Sym *b);
1351 ST_FUNC Sym *label_find(int v);
1352 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1353 ST_FUNC void label_pop(Sym **ptop, Sym *slast, int keep);
1354 ST_FUNC void parse_define(void);
1355 ST_FUNC void preprocess(int is_bof);
1356 ST_FUNC void next(void);
1357 ST_INLN void unget_tok(int last_tok);
1358 ST_FUNC void preprocess_start(TCCState *s1, int is_asm);
1359 ST_FUNC void preprocess_end(TCCState *s1);
1360 ST_FUNC void tccpp_new(TCCState *s);
1361 ST_FUNC void tccpp_delete(TCCState *s);
1362 ST_FUNC int tcc_preprocess(TCCState *s1);
1363 ST_FUNC void skip(int c);
1364 ST_FUNC NORETURN void expect(const char *msg);
1365
1366 /* space excluding newline */
1367 static inline int is_space(int ch) {
1368 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1369 }
1370 static inline int isid(int c) {
1371 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1372 }
1373 static inline int isnum(int c) {
1374 return c >= '0' && c <= '9';
1375 }
1376 static inline int isoct(int c) {
1377 return c >= '0' && c <= '7';
1378 }
1379 static inline int toup(int c) {
1380 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1381 }
1382
1383 /* ------------ tccgen.c ------------ */
1384
1385 #define SYM_POOL_NB (8192 / sizeof(Sym))
1386
1387 ST_DATA Sym *global_stack;
1388 ST_DATA Sym *local_stack;
1389 ST_DATA Sym *local_label_stack;
1390 ST_DATA Sym *global_label_stack;
1391 ST_DATA Sym *define_stack;
1392 ST_DATA CType int_type, func_old_type, char_pointer_type;
1393 ST_DATA SValue *vtop;
1394 ST_DATA int rsym, anon_sym, ind, loc;
1395
1396 ST_DATA int const_wanted; /* true if constant wanted */
1397 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1398 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1399 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1400 ST_DATA int func_var; /* true if current function is variadic */
1401 ST_DATA int func_vc;
1402 ST_DATA const char *funcname;
1403
1404 ST_FUNC void tcc_debug_start(TCCState *s1);
1405 ST_FUNC void tcc_debug_end(TCCState *s1);
1406 ST_FUNC void tcc_debug_bincl(TCCState *s1);
1407 ST_FUNC void tcc_debug_eincl(TCCState *s1);
1408 ST_FUNC void tcc_debug_putfile(TCCState *s1, const char *filename);
1409 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1410 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1411 ST_FUNC void tcc_debug_line(TCCState *s1);
1412
1413 ST_FUNC void tccgen_init(TCCState *s1);
1414 ST_FUNC int tccgen_compile(TCCState *s1);
1415 ST_FUNC void tccgen_finish(TCCState *s1);
1416 ST_FUNC void check_vstack(void);
1417
1418 ST_INLN int is_float(int t);
1419 ST_FUNC int ieee_finite(double d);
1420 ST_FUNC void test_lvalue(void);
1421 ST_FUNC void vpushi(int v);
1422 ST_FUNC ElfSym *elfsym(Sym *);
1423 ST_FUNC void update_storage(Sym *sym);
1424 ST_FUNC Sym *external_global_sym(int v, CType *type);
1425 ST_FUNC void vset(CType *type, int r, int v);
1426 ST_FUNC void vset_VT_CMP(int op);
1427 ST_FUNC void vswap(void);
1428 ST_FUNC void vpush_global_sym(CType *type, int v);
1429 ST_FUNC void vrote(SValue *e, int n);
1430 ST_FUNC void vrott(int n);
1431 ST_FUNC void vrotb(int n);
1432 #if PTR_SIZE == 4
1433 ST_FUNC void lexpand(void);
1434 #endif
1435 #ifdef TCC_TARGET_ARM
1436 ST_FUNC int get_reg_ex(int rc, int rc2);
1437 #endif
1438 ST_FUNC void vpushv(SValue *v);
1439 ST_FUNC void save_reg(int r);
1440 ST_FUNC void save_reg_upstack(int r, int n);
1441 ST_FUNC int get_reg(int rc);
1442 ST_FUNC void save_regs(int n);
1443 ST_FUNC void gaddrof(void);
1444 ST_FUNC int gv(int rc);
1445 ST_FUNC void gv2(int rc1, int rc2);
1446 ST_FUNC void vpop(void);
1447 ST_FUNC void gen_op(int op);
1448 ST_FUNC int type_size(CType *type, int *a);
1449 ST_FUNC void mk_pointer(CType *type);
1450 ST_FUNC void vstore(void);
1451 ST_FUNC void inc(int post, int c);
1452 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1453 ST_FUNC void parse_asm_str(CString *astr);
1454 ST_FUNC void indir(void);
1455 ST_FUNC void unary(void);
1456 ST_FUNC void gexpr(void);
1457 ST_FUNC int expr_const(void);
1458 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1459 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1460 #endif
1461 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1462 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1463 #endif
1464 #ifdef CONFIG_TCC_BCHECK
1465 ST_FUNC void gbound_args(int nb_args);
1466 #endif
1467
1468 /* ------------ tccelf.c ------------ */
1469
1470 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1471 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1472 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1473
1474 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1475
1476 typedef struct {
1477 unsigned int n_strx; /* index into string table of name */
1478 unsigned char n_type; /* type of symbol */
1479 unsigned char n_other; /* misc info (usually empty) */
1480 unsigned short n_desc; /* description field */
1481 unsigned int n_value; /* value of symbol */
1482 } Stab_Sym;
1483
1484 ST_FUNC void tccelf_new(TCCState *s);
1485 ST_FUNC void tccelf_delete(TCCState *s);
1486 ST_FUNC void tccelf_stab_new(TCCState *s);
1487 ST_FUNC void tccelf_begin_file(TCCState *s1);
1488 ST_FUNC void tccelf_end_file(TCCState *s1);
1489 #ifdef CONFIG_TCC_BCHECK
1490 ST_FUNC void tccelf_bounds_new(TCCState *s);
1491 #endif
1492 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1493 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1494 ST_FUNC size_t section_add(Section *sec, addr_t size, int align);
1495 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1496 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1497 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1498 ST_FUNC Section *new_symtab(TCCState *s1, const char *symtab_name, int sh_type, int sh_flags, const char *strtab_name, const char *hash_name, int hash_sh_flags);
1499
1500 ST_FUNC void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore);
1501 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1502 #if PTR_SIZE == 4
1503 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1504 #endif
1505 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1506
1507 ST_FUNC int put_elf_str(Section *s, const char *sym);
1508 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1509 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1510 ST_FUNC int find_elf_sym(Section *s, const char *name);
1511 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1512 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1513
1514 ST_FUNC void put_stabs(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value);
1515 ST_FUNC void put_stabs_r(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1516 ST_FUNC void put_stabn(TCCState *s1, int type, int other, int desc, int value);
1517
1518 ST_FUNC void resolve_common_syms(TCCState *s1);
1519 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1520 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1521
1522 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1523 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1524 ST_FUNC int tcc_load_archive(TCCState *s1, int fd, int alacarte);
1525 ST_FUNC void add_array(TCCState *s1, const char *sec, int c);
1526
1527 #ifndef ELF_OBJ_ONLY
1528 ST_FUNC void build_got_entries(TCCState *s1);
1529 #endif
1530 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1531 ST_FUNC void squeeze_multi_relocs(Section *sec, size_t oldrelocoffset);
1532
1533 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1534 ST_FUNC void list_elf_symbols(TCCState *s, void *ctx,
1535 void (*symbol_cb)(void *ctx, const char *name, const void *val));
1536 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1537 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1538 #endif
1539
1540 ST_FUNC int set_global_sym(TCCState *s1, const char *name, Section *sec, long offs);
1541
1542 #ifndef TCC_TARGET_PE
1543 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1544 ST_FUNC int tcc_load_ldscript(TCCState *s1, int fd);
1545 ST_FUNC void tcc_add_runtime(TCCState *s1);
1546 #endif
1547
1548 /* ------------ xxx-link.c ------------ */
1549
1550 /* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1551 that unknown relocation don't create a GOT or PLT entry */
1552 enum gotplt_entry {
1553 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1554 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1555 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1556 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1557 };
1558
1559 #ifndef ELF_OBJ_ONLY
1560 ST_FUNC int code_reloc (int reloc_type);
1561 ST_FUNC int gotplt_entry_type (int reloc_type);
1562 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1563 ST_FUNC void relocate_plt(TCCState *s1);
1564 #endif
1565 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
1566
1567 /* ------------ xxx-gen.c ------------ */
1568
1569 ST_DATA const int reg_classes[NB_REGS];
1570
1571 ST_FUNC void gsym_addr(int t, int a);
1572 ST_FUNC void gsym(int t);
1573 ST_FUNC void load(int r, SValue *sv);
1574 ST_FUNC void store(int r, SValue *v);
1575 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1576 ST_FUNC void gfunc_call(int nb_args);
1577 ST_FUNC void gfunc_prolog(Sym *func_sym);
1578 ST_FUNC void gfunc_epilog(void);
1579 ST_FUNC void gen_fill_nops(int);
1580 ST_FUNC int gjmp(int t);
1581 ST_FUNC void gjmp_addr(int a);
1582 ST_FUNC int gjmp_cond(int op, int t);
1583 ST_FUNC int gjmp_append(int n, int t);
1584 ST_FUNC void gen_opi(int op);
1585 ST_FUNC void gen_opf(int op);
1586 ST_FUNC void gen_cvt_ftoi(int t);
1587 ST_FUNC void gen_cvt_itof(int t);
1588 ST_FUNC void gen_cvt_ftof(int t);
1589 ST_FUNC void ggoto(void);
1590 #ifndef TCC_TARGET_C67
1591 ST_FUNC void o(unsigned int c);
1592 #endif
1593 ST_FUNC void gen_vla_sp_save(int addr);
1594 ST_FUNC void gen_vla_sp_restore(int addr);
1595 ST_FUNC void gen_vla_alloc(CType *type, int align);
1596
1597 static inline uint16_t read16le(unsigned char *p) {
1598 return p[0] | (uint16_t)p[1] << 8;
1599 }
1600 static inline void write16le(unsigned char *p, uint16_t x) {
1601 p[0] = x & 255; p[1] = x >> 8 & 255;
1602 }
1603 static inline uint32_t read32le(unsigned char *p) {
1604 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1605 }
1606 static inline void write32le(unsigned char *p, uint32_t x) {
1607 write16le(p, x); write16le(p + 2, x >> 16);
1608 }
1609 static inline void add32le(unsigned char *p, int32_t x) {
1610 write32le(p, read32le(p) + x);
1611 }
1612 static inline uint64_t read64le(unsigned char *p) {
1613 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1614 }
1615 static inline void write64le(unsigned char *p, uint64_t x) {
1616 write32le(p, x); write32le(p + 4, x >> 32);
1617 }
1618 static inline void add64le(unsigned char *p, int64_t x) {
1619 write64le(p, read64le(p) + x);
1620 }
1621
1622 /* ------------ i386-gen.c ------------ */
1623 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1624 ST_FUNC void g(int c);
1625 ST_FUNC void gen_le16(int c);
1626 ST_FUNC void gen_le32(int c);
1627 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1628 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1629 ST_FUNC void gen_cvt_csti(int t);
1630 #endif
1631
1632 #ifdef CONFIG_TCC_BCHECK
1633 ST_FUNC void gen_bounded_ptr_add(void);
1634 ST_FUNC void gen_bounded_ptr_deref(void);
1635 #endif
1636
1637 /* ------------ x86_64-gen.c ------------ */
1638 #ifdef TCC_TARGET_X86_64
1639 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1640 ST_FUNC void gen_opl(int op);
1641 #ifdef TCC_TARGET_PE
1642 ST_FUNC void gen_vla_result(int addr);
1643 #endif
1644 ST_FUNC void gen_cvt_sxtw(void);
1645 ST_FUNC void gen_cvt_csti(int t);
1646 #endif
1647
1648 /* ------------ arm-gen.c ------------ */
1649 #ifdef TCC_TARGET_ARM
1650 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1651 PUB_FUNC const char *default_elfinterp(struct TCCState *s);
1652 #endif
1653 ST_FUNC void arm_init(struct TCCState *s);
1654 #endif
1655
1656 /* ------------ arm64-gen.c ------------ */
1657 #ifdef TCC_TARGET_ARM64
1658 ST_FUNC void gen_opl(int op);
1659 ST_FUNC void gfunc_return(CType *func_type);
1660 ST_FUNC void gen_va_start(void);
1661 ST_FUNC void gen_va_arg(CType *t);
1662 ST_FUNC void gen_clear_cache(void);
1663 ST_FUNC void gen_cvt_sxtw(void);
1664 ST_FUNC void gen_cvt_csti(int t);
1665 #endif
1666
1667 /* ------------ riscv64-gen.c ------------ */
1668 #ifdef TCC_TARGET_RISCV64
1669 ST_FUNC void gen_opl(int op);
1670 //ST_FUNC void gfunc_return(CType *func_type);
1671 ST_FUNC void gen_va_start(void);
1672 ST_FUNC void arch_transfer_ret_regs(int);
1673 ST_FUNC void gen_cvt_sxtw(void);
1674 #endif
1675
1676 /* ------------ c67-gen.c ------------ */
1677 #ifdef TCC_TARGET_C67
1678 #endif
1679
1680 /* ------------ tcccoff.c ------------ */
1681
1682 #ifdef TCC_TARGET_COFF
1683 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1684 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1685 #endif
1686
1687 /* ------------ tccasm.c ------------ */
1688 ST_FUNC void asm_instr(void);
1689 ST_FUNC void asm_global_instr(void);
1690 #ifdef CONFIG_TCC_ASM
1691 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1692 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1693 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1694 ST_FUNC int asm_int_expr(TCCState *s1);
1695 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1696 /* ------------ i386-asm.c ------------ */
1697 ST_FUNC void gen_expr32(ExprValue *pe);
1698 #ifdef TCC_TARGET_X86_64
1699 ST_FUNC void gen_expr64(ExprValue *pe);
1700 #endif
1701 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1702 ST_FUNC int asm_parse_regvar(int t);
1703 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1704 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1705 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1706 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1707 #endif
1708
1709 /* ------------ tccpe.c -------------- */
1710 #ifdef TCC_TARGET_PE
1711 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1712 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1713 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1714 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1715 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1716 #endif
1717 #ifdef TCC_TARGET_X86_64
1718 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1719 #endif
1720 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1721 /* symbol properties stored in Elf32_Sym->st_other */
1722 # define ST_PE_EXPORT 0x10
1723 # define ST_PE_IMPORT 0x20
1724 # define ST_PE_STDCALL 0x40
1725 #endif
1726 #define ST_ASM_SET 0x04
1727
1728 /* ------------ tccrun.c ----------------- */
1729 #ifdef TCC_IS_NATIVE
1730 #ifdef CONFIG_TCC_STATIC
1731 #define RTLD_LAZY 0x001
1732 #define RTLD_NOW 0x002
1733 #define RTLD_GLOBAL 0x100
1734 #define RTLD_DEFAULT NULL
1735 /* dummy function for profiling */
1736 ST_FUNC void *dlopen(const char *filename, int flag);
1737 ST_FUNC void dlclose(void *p);
1738 ST_FUNC const char *dlerror(void);
1739 ST_FUNC void *dlsym(void *handle, const char *symbol);
1740 #endif
1741 ST_FUNC void tcc_run_free(TCCState *s1);
1742 #endif
1743
1744 /* ------------ tcctools.c ----------------- */
1745 #if 0 /* included in tcc.c */
1746 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1747 #ifdef TCC_TARGET_PE
1748 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1749 #endif
1750 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1751 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1752 #endif
1753
1754 /********************************************************/
1755 #undef ST_DATA
1756 #if ONE_SOURCE
1757 #define ST_DATA static
1758 #else
1759 #define ST_DATA
1760 #endif
1761 /********************************************************/
1762
1763 #define text_section TCC_STATE_VAR(text_section)
1764 #define data_section TCC_STATE_VAR(data_section)
1765 #define bss_section TCC_STATE_VAR(bss_section)
1766 #define common_section TCC_STATE_VAR(common_section)
1767 #define cur_text_section TCC_STATE_VAR(cur_text_section)
1768 #define bounds_section TCC_STATE_VAR(bounds_section)
1769 #define lbounds_section TCC_STATE_VAR(lbounds_section)
1770 #define symtab_section TCC_STATE_VAR(symtab_section)
1771 #define stab_section TCC_STATE_VAR(stab_section)
1772 #define stabstr_section stab_section->link
1773 #define gnu_ext TCC_STATE_VAR(gnu_ext)
1774 #define tcc_error_noabort TCC_SET_STATE(_tcc_error_noabort)
1775 #define tcc_error TCC_SET_STATE(_tcc_error)
1776 #define tcc_warning TCC_SET_STATE(_tcc_warning)
1777
1778 #define total_idents TCC_STATE_VAR(total_idents)
1779 #define total_lines TCC_STATE_VAR(total_lines)
1780 #define total_bytes TCC_STATE_VAR(total_bytes)
1781
1782 PUB_FUNC void tcc_enter_state(TCCState *s1);
1783
1784 /********************************************************/
1785 #endif /* _TCC_H */
1786
1787 #undef TCC_STATE_VAR
1788 #undef TCC_SET_STATE
1789
1790 #ifdef USING_GLOBALS
1791 # define TCC_STATE_VAR(sym) tcc_state->sym
1792 # define TCC_SET_STATE(fn) fn
1793 # undef USING_GLOBALS
1794 #else
1795 # define TCC_STATE_VAR(sym) s1->sym
1796 # define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn)
1797 /* actually we could avoid the tcc_enter_state(s1) hack by using
1798 __VA_ARGS__ except that some compiler doesn't support it. */
1799 #endif
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