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TODO: add releases - it's been a while since the last release
[tinycc.git] / tcc.h
blobac50a6daae270862a28762638d9753474d25c642
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 #define _DARWIN_C_SOURCE
26 #include "config.h"
27
28 #include <stdarg.h>
29 #include <stdlib.h>
30 #include <stdio.h>
31 /* gnu headers use to #define __attribute__ to empty for non-gcc compilers */
32 #ifdef __TINYC__
33 # undef __attribute__
34 #endif
35 #include <string.h>
36 #include <errno.h>
37 #include <math.h>
38 #include <fcntl.h>
39 #include <setjmp.h>
40 #include <time.h>
41
42 #ifndef _WIN32
43 # include <unistd.h>
44 # include <sys/time.h>
45 # ifndef CONFIG_TCC_STATIC
46 # include <dlfcn.h>
47 # endif
48 /* XXX: need to define this to use them in non ISOC99 context */
49 extern float strtof (const char *__nptr, char **__endptr);
50 extern long double strtold (const char *__nptr, char **__endptr);
51 #endif
52
53 #ifdef _WIN32
54 # define WIN32_LEAN_AND_MEAN 1
55 # include <windows.h>
56 # include <io.h> /* open, close etc. */
57 # include <direct.h> /* getcwd */
58 # include <malloc.h> /* alloca */
59 # ifdef __GNUC__
60 # include <stdint.h>
61 # endif
62 # define inline __inline
63 # define snprintf _snprintf
64 # define vsnprintf _vsnprintf
65 # ifndef __GNUC__
66 # define strtold (long double)strtod
67 # define strtof (float)strtod
68 # ifndef strtoll
69 # define strtoll _strtoi64
70 # endif
71 # ifndef strtoull
72 # define strtoull _strtoui64
73 # endif
74 # endif
75 # ifdef LIBTCC_AS_DLL
76 # define LIBTCCAPI __declspec(dllexport)
77 # define PUB_FUNC LIBTCCAPI
78 # endif
79 # ifdef _MSC_VER
80 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
81 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
82 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
83 # pragma warning (disable : 4018) // signed/unsigned mismatch
84 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
85 # define ssize_t intptr_t
86 # ifdef _X86_
87 # define __i386__ 1
88 # endif
89 # ifdef _AMD64_
90 # define __x86_64__ 1
91 # endif
92 # endif
93 # ifndef va_copy
94 # define va_copy(a,b) a = b
95 # endif
96 # undef CONFIG_TCC_STATIC
97 #endif
98
99 #ifndef PAGESIZE
100 # ifdef _SC_PAGESIZE
101 # define PAGESIZE sysconf(_SC_PAGESIZE)
102 # else
103 # define PAGESIZE 4096
104 # endif
105 #endif
106
107 #ifndef O_BINARY
108 # define O_BINARY 0
109 #endif
110
111 #ifndef offsetof
112 #define offsetof(type, field) ((size_t) &((type *)0)->field)
113 #endif
114
115 #ifndef countof
116 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
117 #endif
118
119 #ifdef _MSC_VER
120 # define NORETURN __declspec(noreturn)
121 # define ALIGNED(x) __declspec(align(x))
122 # define PRINTF_LIKE(x,y)
123 #else
124 # define NORETURN __attribute__((noreturn))
125 # define ALIGNED(x) __attribute__((aligned(x)))
126 # define PRINTF_LIKE(x,y) __attribute__ ((format (printf, (x), (y))))
127 #endif
128
129 #ifdef _WIN32
130 # define IS_DIRSEP(c) (c == '/' || c == '\\')
131 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
132 # define PATHCMP stricmp
133 # define PATHSEP ";"
134 #else
135 # define IS_DIRSEP(c) (c == '/')
136 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
137 # define PATHCMP strcmp
138 # define PATHSEP ":"
139 #endif
140
141 /* -------------------------------------------- */
142
143 /* parser debug */
144 /* #define PARSE_DEBUG */
145 /* preprocessor debug */
146 /* #define PP_DEBUG */
147 /* include file debug */
148 /* #define INC_DEBUG */
149 /* memory leak debug (only for single threaded usage) */
150 /* #define MEM_DEBUG */
151 /* assembler debug */
152 /* #define ASM_DEBUG */
153
154 /* target selection */
155 /* #define TCC_TARGET_I386 *//* i386 code generator */
156 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
157 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
158 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
159 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
160 /* #define TCC_TARGET_RISCV64 *//* risc-v code generator */
161
162 /* default target is I386 */
163 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
164 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
165 !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_RISCV64)
166 # if defined __x86_64__
167 # define TCC_TARGET_X86_64
168 # elif defined __arm__
169 # define TCC_TARGET_ARM
170 # define TCC_ARM_EABI
171 # define TCC_ARM_VFP
172 # define TCC_ARM_HARDFLOAT
173 # elif defined __aarch64__
174 # define TCC_TARGET_ARM64
175 # elif defined __riscv
176 # define TCC_TARGET_RISCV64
177 # else
178 # define TCC_TARGET_I386
179 # endif
180 # ifdef _WIN32
181 # define TCC_TARGET_PE 1
182 # endif
183 # ifdef __APPLE__
184 # define TCC_TARGET_MACHO 1
185 # endif
186 #endif
187
188 /* only native compiler supports -run */
189 #if defined _WIN32 == defined TCC_TARGET_PE \
190 && defined __APPLE__ == defined TCC_TARGET_MACHO
191 # if defined __i386__ && defined TCC_TARGET_I386
192 # define TCC_IS_NATIVE
193 # elif defined __x86_64__ && defined TCC_TARGET_X86_64
194 # define TCC_IS_NATIVE
195 # elif defined __arm__ && defined TCC_TARGET_ARM
196 # define TCC_IS_NATIVE
197 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
198 # define TCC_IS_NATIVE
199 # elif defined __riscv && defined __LP64__ && defined TCC_TARGET_RISCV64
200 # define TCC_IS_NATIVE
201 # endif
202 #endif
203
204 #if defined CONFIG_TCC_BACKTRACE && CONFIG_TCC_BACKTRACE==0
205 # undef CONFIG_TCC_BACKTRACE
206 #else
207 # define CONFIG_TCC_BACKTRACE 1 /* enable builtin stack backtraces */
208 #endif
209
210 #if defined CONFIG_TCC_BCHECK && CONFIG_TCC_BCHECK==0
211 # undef CONFIG_TCC_BCHECK
212 #else
213 # define CONFIG_TCC_BCHECK 1 /* enable bound checking code */
214 #endif
215
216 #if defined TARGETOS_OpenBSD \
217 || defined TARGETOS_FreeBSD \
218 || defined TARGETOS_NetBSD \
219 || defined TARGETOS_FreeBSD_kernel
220 # define TARGETOS_BSD 1
221 #elif !(defined TCC_TARGET_PE || defined TCC_TARGET_MACHO)
222 # define TARGETOS_Linux 1
223 #endif
224
225 #if defined TCC_TARGET_PE || defined TCC_TARGET_MACHO
226 # define ELF_OBJ_ONLY /* create elf .o but native executables */
227 #endif
228
229 /* No ten-byte long doubles on window and macos except in
230 cross-compilers made by a mingw-GCC */
231 #if defined TCC_TARGET_PE \
232 || (defined TCC_TARGET_MACHO && defined TCC_TARGET_ARM64) \
233 || (defined _WIN32 && !defined __GNUC__)
234 # define TCC_USING_DOUBLE_FOR_LDOUBLE 1
235 #endif
236
237 #ifdef CONFIG_TCC_PIE
238 # define CONFIG_TCC_PIC 1
239 #endif
240
241 /* ------------ path configuration ------------ */
242
243 #ifndef CONFIG_SYSROOT
244 # define CONFIG_SYSROOT ""
245 #endif
246 #if !defined CONFIG_TCCDIR && !defined _WIN32
247 # define CONFIG_TCCDIR "/usr/local/lib/tcc"
248 #endif
249 #ifndef CONFIG_LDDIR
250 # define CONFIG_LDDIR "lib"
251 #endif
252 #ifdef CONFIG_TRIPLET
253 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
254 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
255 #else
256 # define USE_TRIPLET(s) s
257 # define ALSO_TRIPLET(s) s
258 #endif
259
260 /* path to find crt1.o, crti.o and crtn.o */
261 #ifndef CONFIG_TCC_CRTPREFIX
262 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
263 #endif
264
265 #ifndef CONFIG_USR_INCLUDE
266 # define CONFIG_USR_INCLUDE "/usr/include"
267 #endif
268
269 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
270
271 /* system include paths */
272 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
273 # if defined TCC_TARGET_PE || defined _WIN32
274 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include"PATHSEP"{B}/include/winapi"
275 # else
276 # define CONFIG_TCC_SYSINCLUDEPATHS \
277 "{B}/include" \
278 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
279 ":" ALSO_TRIPLET(CONFIG_SYSROOT CONFIG_USR_INCLUDE)
280 # endif
281 #endif
282
283 /* library search paths */
284 #ifndef CONFIG_TCC_LIBPATHS
285 # ifdef TCC_TARGET_PE
286 # define CONFIG_TCC_LIBPATHS "{B}/lib"
287 # else
288 # define CONFIG_TCC_LIBPATHS \
289 "{B}" \
290 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
291 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
292 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
293 # endif
294 #endif
295
296 /* name of ELF interpreter */
297 #ifndef CONFIG_TCC_ELFINTERP
298 # if TARGETOS_FreeBSD
299 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
300 # elif TARGETOS_FreeBSD_kernel
301 # if defined(TCC_TARGET_X86_64)
302 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
303 # else
304 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
305 # endif
306 # elif TARGETOS_DragonFly
307 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
308 # elif TARGETOS_NetBSD
309 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
310 # elif TARGETOS_OpenBSD
311 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.so"
312 # elif defined __GNU__
313 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
314 # elif defined(TCC_TARGET_PE)
315 # define CONFIG_TCC_ELFINTERP "-"
316 # elif defined(TCC_UCLIBC)
317 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
318 # elif defined TCC_TARGET_ARM64
319 # if defined(TCC_MUSL)
320 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
321 # else
322 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
323 # endif
324 # elif defined(TCC_TARGET_X86_64)
325 # if defined(TCC_MUSL)
326 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
327 # else
328 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
329 # endif
330 # elif defined(TCC_TARGET_RISCV64)
331 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-riscv64-lp64d.so.1"
332 # elif !defined(TCC_ARM_EABI)
333 # if defined(TCC_MUSL)
334 # if defined(TCC_TARGET_I386)
335 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-i386.so.1"
336 # else
337 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
338 # endif
339 # else
340 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
341 # endif
342 # endif
343 #endif
344
345 /* var elf_interp dans *-gen.c */
346 #ifdef CONFIG_TCC_ELFINTERP
347 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
348 #else
349 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
350 #endif
351
352 /* (target specific) libtcc1.a */
353 #ifndef TCC_LIBTCC1
354 # define TCC_LIBTCC1 "libtcc1.a"
355 #endif
356
357 #ifndef CONFIG_TCC_CROSSPREFIX
358 # define CONFIG_TCC_CROSSPREFIX ""
359 #endif
360
361 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
362 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
363 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
364 #endif
365
366 /* -------------------------------------------- */
367
368 #include "libtcc.h"
369 #include "elf.h"
370 #include "stab.h"
371 #include "dwarf.h"
372
373 /* -------------------------------------------- */
374
375 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
376 # define PUB_FUNC
377 #endif
378
379 #ifndef ONE_SOURCE
380 # define ONE_SOURCE 1
381 #endif
382
383 /* support using libtcc from threads */
384 #ifndef CONFIG_TCC_SEMLOCK
385 # define CONFIG_TCC_SEMLOCK 1
386 #endif
387
388 #if ONE_SOURCE
389 #define ST_INLN static inline
390 #define ST_FUNC static
391 #define ST_DATA static
392 #else
393 #define ST_INLN
394 #define ST_FUNC
395 #define ST_DATA extern
396 #endif
397
398 #ifdef TCC_PROFILE /* profile all functions */
399 # define static
400 #endif
401
402 /* -------------------------------------------- */
403 /* include the target specific definitions */
404
405 #define TARGET_DEFS_ONLY
406 #ifdef TCC_TARGET_I386
407 # include "i386-gen.c"
408 # include "i386-link.c"
409 #elif defined TCC_TARGET_X86_64
410 # include "x86_64-gen.c"
411 # include "x86_64-link.c"
412 #elif defined TCC_TARGET_ARM
413 # include "arm-gen.c"
414 # include "arm-link.c"
415 # include "arm-asm.c"
416 #elif defined TCC_TARGET_ARM64
417 # include "arm64-gen.c"
418 # include "arm64-link.c"
419 # include "arm-asm.c"
420 #elif defined TCC_TARGET_C67
421 # define TCC_TARGET_COFF
422 # include "coff.h"
423 # include "c67-gen.c"
424 # include "c67-link.c"
425 #elif defined(TCC_TARGET_RISCV64)
426 # include "riscv64-gen.c"
427 # include "riscv64-link.c"
428 # include "riscv64-asm.c"
429 #else
430 #error unknown target
431 #endif
432 #undef TARGET_DEFS_ONLY
433
434 /* -------------------------------------------- */
435
436 #if PTR_SIZE == 8
437 # define ELFCLASSW ELFCLASS64
438 # define ElfW(type) Elf##64##_##type
439 # define ELFW(type) ELF##64##_##type
440 # define ElfW_Rel ElfW(Rela)
441 # define SHT_RELX SHT_RELA
442 # define REL_SECTION_FMT ".rela%s"
443 #else
444 # define ELFCLASSW ELFCLASS32
445 # define ElfW(type) Elf##32##_##type
446 # define ELFW(type) ELF##32##_##type
447 # define ElfW_Rel ElfW(Rel)
448 # define SHT_RELX SHT_REL
449 # define REL_SECTION_FMT ".rel%s"
450 #endif
451 /* target address type */
452 #define addr_t ElfW(Addr)
453 #define ElfSym ElfW(Sym)
454
455 #if PTR_SIZE == 8 && !defined TCC_TARGET_PE
456 # define LONG_SIZE 8
457 #else
458 # define LONG_SIZE 4
459 #endif
460
461 /* -------------------------------------------- */
462
463 #define INCLUDE_STACK_SIZE 32
464 #define IFDEF_STACK_SIZE 64
465 #define VSTACK_SIZE 256
466 #define STRING_MAX_SIZE 1024
467 #define TOKSTR_MAX_SIZE 256
468 #define PACK_STACK_SIZE 8
469
470 #define TOK_HASH_SIZE 16384 /* must be a power of two */
471 #define TOK_ALLOC_INCR 512 /* must be a power of two */
472 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
473
474 /* token symbol management */
475 typedef struct TokenSym {
476 struct TokenSym *hash_next;
477 struct Sym *sym_define; /* direct pointer to define */
478 struct Sym *sym_label; /* direct pointer to label */
479 struct Sym *sym_struct; /* direct pointer to structure */
480 struct Sym *sym_identifier; /* direct pointer to identifier */
481 int tok; /* token number */
482 int len;
483 char str[1];
484 } TokenSym;
485
486 #ifdef TCC_TARGET_PE
487 typedef unsigned short nwchar_t;
488 #else
489 typedef int nwchar_t;
490 #endif
491
492 typedef struct CString {
493 int size; /* size in bytes */
494 void *data; /* either 'char *' or 'nwchar_t *' */
495 int size_allocated;
496 } CString;
497
498 /* type definition */
499 typedef struct CType {
500 int t;
501 struct Sym *ref;
502 } CType;
503
504 /* constant value */
505 typedef union CValue {
506 long double ld;
507 double d;
508 float f;
509 uint64_t i;
510 struct {
511 const void *data;
512 int size;
513 } str;
514 int tab[LDOUBLE_SIZE/4];
515 } CValue;
516
517 /* value on stack */
518 typedef struct SValue {
519 CType type; /* type */
520 unsigned short r; /* register + flags */
521 unsigned short r2; /* second register, used for 'long long'
522 type. If not used, set to VT_CONST */
523 union {
524 struct { int jtrue, jfalse; }; /* forward jmps */
525 CValue c; /* constant, if VT_CONST */
526 };
527 union {
528 struct { unsigned short cmp_op, cmp_r; }; /* VT_CMP operation */
529 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if */
530 }; /* result of unary() for an identifier. */
531
532 } SValue;
533
534 /* symbol attributes */
535 struct SymAttr {
536 unsigned short
537 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
538 packed : 1,
539 weak : 1,
540 visibility : 2,
541 dllexport : 1,
542 nodecorate : 1,
543 dllimport : 1,
544 addrtaken : 1,
545 xxxx : 3; /* not used */
546 };
547
548 /* function attributes or temporary attributes for parsing */
549 struct FuncAttr {
550 unsigned
551 func_call : 3, /* calling convention (0..5), see below */
552 func_type : 2, /* FUNC_OLD/NEW/ELLIPSIS */
553 func_noreturn : 1, /* attribute((noreturn)) */
554 func_ctor : 1, /* attribute((constructor)) */
555 func_dtor : 1, /* attribute((destructor)) */
556 func_args : 8, /* PE __stdcall args */
557 func_alwinl : 1, /* always_inline */
558 xxxx : 15;
559 };
560
561 /* symbol management */
562 typedef struct Sym {
563 int v; /* symbol token */
564 unsigned short r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
565 struct SymAttr a; /* symbol attributes */
566 union {
567 struct {
568 int c; /* associated number or Elf symbol index */
569 union {
570 int sym_scope; /* scope level for locals */
571 int jnext; /* next jump label */
572 struct FuncAttr f; /* function attributes */
573 int auxtype; /* bitfield access type */
574 };
575 };
576 long long enum_val; /* enum constant if IS_ENUM_VAL */
577 int *d; /* define token stream */
578 struct Sym *ncl; /* next cleanup */
579 };
580 CType type; /* associated type */
581 union {
582 int *vla_array_str; /* vla array code */
583 struct Sym *next; /* next related symbol (for fields and anoms) */
584 struct Sym *cleanupstate; /* in defined labels */
585 int asm_label; /* associated asm label */
586 };
587 struct Sym *prev; /* prev symbol in stack */
588 struct Sym *prev_tok; /* previous symbol for this token */
589 } Sym;
590
591 /* section definition */
592 typedef struct Section {
593 unsigned long data_offset; /* current data offset */
594 unsigned char *data; /* section data */
595 unsigned long data_allocated; /* used for realloc() handling */
596 TCCState *s1;
597 int sh_name; /* elf section name (only used during output) */
598 int sh_num; /* elf section number */
599 int sh_type; /* elf section type */
600 int sh_flags; /* elf section flags */
601 int sh_info; /* elf section info */
602 int sh_addralign; /* elf section alignment */
603 int sh_entsize; /* elf entry size */
604 unsigned long sh_size; /* section size (only used during output) */
605 addr_t sh_addr; /* address at which the section is relocated */
606 unsigned long sh_offset; /* file offset */
607 int nb_hashed_syms; /* used to resize the hash table */
608 struct Section *link; /* link to another section */
609 struct Section *reloc; /* corresponding section for relocation, if any */
610 struct Section *hash; /* hash table for symbols */
611 struct Section *prev; /* previous section on section stack */
612 char name[1]; /* section name */
613 } Section;
614
615 typedef struct DLLReference {
616 int level;
617 void *handle;
618 unsigned char found, index;
619 char name[1];
620 } DLLReference;
621
622 /* -------------------------------------------------- */
623
624 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
625 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
626 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
627
628 /* stored in 'Sym->f.func_type' field */
629 #define FUNC_NEW 1 /* ansi function prototype */
630 #define FUNC_OLD 2 /* old function prototype */
631 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
632
633 /* stored in 'Sym->f.func_call' field */
634 #define FUNC_CDECL 0 /* standard c call */
635 #define FUNC_STDCALL 1 /* pascal c call */
636 #define FUNC_FASTCALL1 2 /* first param in %eax */
637 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
638 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
639 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
640
641 /* field 'Sym.t' for macros */
642 #define MACRO_OBJ 0 /* object like macro */
643 #define MACRO_FUNC 1 /* function like macro */
644
645 /* field 'Sym.r' for C labels */
646 #define LABEL_DEFINED 0 /* label is defined */
647 #define LABEL_FORWARD 1 /* label is forward defined */
648 #define LABEL_DECLARED 2 /* label is declared but never used */
649 #define LABEL_GONE 3 /* label isn't in scope, but not yet popped
650 from local_label_stack (stmt exprs) */
651
652 /* type_decl() types */
653 #define TYPE_ABSTRACT 1 /* type without variable */
654 #define TYPE_DIRECT 2 /* type with variable */
655 #define TYPE_PARAM 4 /* type declares function parameter */
656 #define TYPE_NEST 8 /* nested call to post_type */
657
658 #define IO_BUF_SIZE 8192
659
660 typedef struct BufferedFile {
661 uint8_t *buf_ptr;
662 uint8_t *buf_end;
663 int fd;
664 struct BufferedFile *prev;
665 int line_num; /* current line number - here to simplify code */
666 int line_ref; /* tcc -E: last printed line */
667 int ifndef_macro; /* #ifndef macro / #endif search */
668 int ifndef_macro_saved; /* saved ifndef_macro */
669 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
670 int include_next_index; /* next search path */
671 char filename[1024]; /* filename */
672 char *true_filename; /* filename not modified by # line directive */
673 unsigned char unget[4];
674 unsigned char buffer[1]; /* extra size for CH_EOB char */
675 } BufferedFile;
676
677 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
678 #define CH_EOF (-1) /* end of file */
679
680 /* used to record tokens */
681 typedef struct TokenString {
682 int *str;
683 int len;
684 int lastlen;
685 int allocated_len;
686 int last_line_num;
687 int save_line_num;
688 /* used to chain token-strings with begin/end_macro() */
689 struct TokenString *prev;
690 const int *prev_ptr;
691 char alloc;
692 } TokenString;
693
694 /* GNUC attribute definition */
695 typedef struct AttributeDef {
696 struct SymAttr a;
697 struct FuncAttr f;
698 struct Section *section;
699 Sym *cleanup_func;
700 int alias_target; /* token */
701 int asm_label; /* associated asm label */
702 char attr_mode; /* __attribute__((__mode__(...))) */
703 } AttributeDef;
704
705 /* inline functions */
706 typedef struct InlineFunc {
707 TokenString *func_str;
708 Sym *sym;
709 char filename[1];
710 } InlineFunc;
711
712 /* include file cache, used to find files faster and also to eliminate
713 inclusion if the include file is protected by #ifndef ... #endif */
714 typedef struct CachedInclude {
715 int ifndef_macro;
716 int once;
717 int hash_next; /* -1 if none */
718 char filename[1]; /* path specified in #include */
719 } CachedInclude;
720
721 #define CACHED_INCLUDES_HASH_SIZE 32
722
723 #ifdef CONFIG_TCC_ASM
724 typedef struct ExprValue {
725 uint64_t v;
726 Sym *sym;
727 int pcrel;
728 } ExprValue;
729
730 #define MAX_ASM_OPERANDS 30
731 typedef struct ASMOperand {
732 int id; /* GCC 3 optional identifier (0 if number only supported) */
733 char *constraint;
734 char asm_str[16]; /* computed asm string for operand */
735 SValue *vt; /* C value of the expression */
736 int ref_index; /* if >= 0, gives reference to a output constraint */
737 int input_index; /* if >= 0, gives reference to an input constraint */
738 int priority; /* priority, used to assign registers */
739 int reg; /* if >= 0, register number used for this operand */
740 int is_llong; /* true if double register value */
741 int is_memory; /* true if memory operand */
742 int is_rw; /* for '+' modifier */
743 int is_label; /* for asm goto */
744 } ASMOperand;
745 #endif
746
747 /* extra symbol attributes (not in symbol table) */
748 struct sym_attr {
749 unsigned got_offset;
750 unsigned plt_offset;
751 int plt_sym;
752 int dyn_index;
753 #ifdef TCC_TARGET_ARM
754 unsigned char plt_thumb_stub:1;
755 #endif
756 };
757
758 struct TCCState {
759 unsigned char verbose; /* if true, display some information during compilation */
760 unsigned char nostdinc; /* if true, no standard headers are added */
761 unsigned char nostdlib; /* if true, no standard libraries are added */
762 unsigned char nocommon; /* if true, do not use common symbols for .bss data */
763 unsigned char static_link; /* if true, static linking is performed */
764 unsigned char rdynamic; /* if true, all symbols are exported */
765 unsigned char symbolic; /* if true, resolve symbols in the current module first */
766 unsigned char filetype; /* file type for compilation (NONE,C,ASM) */
767 unsigned char optimize; /* only to #define __OPTIMIZE__ */
768 unsigned char option_pthread; /* -pthread option */
769 unsigned char enable_new_dtags; /* -Wl,--enable-new-dtags */
770 unsigned int cversion; /* supported C ISO version, 199901 (the default), 201112, ... */
771
772 /* C language options */
773 unsigned char char_is_unsigned;
774 unsigned char leading_underscore;
775 unsigned char ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
776 unsigned char dollars_in_identifiers; /* allows '$' char in identifiers */
777 unsigned char ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
778
779 /* warning switches */
780 unsigned char warn_none;
781 unsigned char warn_all;
782 unsigned char warn_error;
783 unsigned char warn_write_strings;
784 unsigned char warn_unsupported;
785 unsigned char warn_implicit_function_declaration;
786 unsigned char warn_discarded_qualifiers;
787 #define WARN_ON 1 /* warning is on (-Woption) */
788 unsigned char warn_num; /* temp var for tcc_warning_c() */
789
790 unsigned char option_r; /* option -r */
791 unsigned char do_bench; /* option -bench */
792 unsigned char just_deps; /* option -M */
793 unsigned char gen_deps; /* option -MD */
794 unsigned char include_sys_deps; /* option -MD */
795
796 /* compile with debug symbol (and use them if error during execution) */
797 unsigned char do_debug;
798 unsigned char dwarf;
799 unsigned char do_backtrace;
800 #ifdef CONFIG_TCC_BCHECK
801 /* compile with built-in memory and bounds checker */
802 unsigned char do_bounds_check;
803 #endif
804 unsigned char test_coverage; /* generate test coverage code */
805
806 /* use GNU C extensions */
807 unsigned char gnu_ext;
808 /* use TinyCC extensions */
809 unsigned char tcc_ext;
810
811 unsigned char dflag; /* -dX value */
812 unsigned char Pflag; /* -P switch (LINE_MACRO_OUTPUT_FORMAT) */
813
814 #ifdef TCC_TARGET_X86_64
815 unsigned char nosse; /* For -mno-sse support. */
816 #endif
817 #ifdef TCC_TARGET_ARM
818 unsigned char float_abi; /* float ABI of the generated code*/
819 #endif
820
821 unsigned char has_text_addr;
822 addr_t text_addr; /* address of text section */
823 unsigned section_align; /* section alignment */
824 #ifdef TCC_TARGET_I386
825 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
826 #endif
827
828 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
829 char *soname; /* as specified on the command line (-soname) */
830 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
831 char *elf_entryname; /* "_start" unless set */
832 char *init_symbol; /* symbols to call at load-time (not used currently) */
833 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
834 char *mapfile; /* create a mapfile (not used currently) */
835
836 /* output type, see TCC_OUTPUT_XXX */
837 int output_type;
838 /* output format, see TCC_OUTPUT_FORMAT_xxx */
839 int output_format;
840 /* nth test to run with -dt -run */
841 int run_test;
842
843 /* array of all loaded dlls (including those referenced by loaded dlls) */
844 DLLReference **loaded_dlls;
845 int nb_loaded_dlls;
846
847 /* include paths */
848 char **include_paths;
849 int nb_include_paths;
850
851 char **sysinclude_paths;
852 int nb_sysinclude_paths;
853
854 /* library paths */
855 char **library_paths;
856 int nb_library_paths;
857
858 /* crt?.o object path */
859 char **crt_paths;
860 int nb_crt_paths;
861
862 /* -D / -U options */
863 CString cmdline_defs;
864 /* -include options */
865 CString cmdline_incl;
866
867 /* error handling */
868 void *error_opaque;
869 void (*error_func)(void *opaque, const char *msg);
870 int error_set_jmp_enabled;
871 jmp_buf error_jmp_buf;
872 int nb_errors;
873
874 /* output file for preprocessing (-E) */
875 FILE *ppfp;
876
877 /* for -MD/-MF: collected dependencies for this compilation */
878 char **target_deps;
879 int nb_target_deps;
880
881 /* compilation */
882 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
883 BufferedFile **include_stack_ptr;
884
885 int ifdef_stack[IFDEF_STACK_SIZE];
886 int *ifdef_stack_ptr;
887
888 /* included files enclosed with #ifndef MACRO */
889 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
890 CachedInclude **cached_includes;
891 int nb_cached_includes;
892
893 /* #pragma pack stack */
894 int pack_stack[PACK_STACK_SIZE];
895 int *pack_stack_ptr;
896 char **pragma_libs;
897 int nb_pragma_libs;
898
899 /* inline functions are stored as token lists and compiled last
900 only if referenced */
901 struct InlineFunc **inline_fns;
902 int nb_inline_fns;
903
904 /* sections */
905 Section **sections;
906 int nb_sections; /* number of sections, including first dummy section */
907
908 Section **priv_sections;
909 int nb_priv_sections; /* number of private sections */
910
911 /* predefined sections */
912 Section *text_section, *data_section, *rodata_section, *bss_section;
913 Section *common_section;
914 Section *cur_text_section; /* current section where function code is generated */
915 #ifdef CONFIG_TCC_BCHECK
916 /* bound check related sections */
917 Section *bounds_section; /* contains global data bound description */
918 Section *lbounds_section; /* contains local data bound description */
919 #endif
920 /* symbol section */
921 Section *symtab_section;
922 /* temporary dynamic symbol sections (for dll loading) */
923 Section *dynsymtab_section;
924 /* exported dynamic symbol section */
925 Section *dynsym;
926 /* copy of the global symtab_section variable */
927 Section *symtab;
928 /* got & plt handling */
929 Section *got, *plt;
930 /* debug sections */
931 Section *stab_section;
932 Section *dwarf_info_section;
933 Section *dwarf_abbrev_section;
934 Section *dwarf_line_section;
935 Section *dwarf_aranges_section;
936 Section *dwarf_str_section;
937 Section *dwarf_line_str_section;
938 int dwlo, dwhi; /* dwarf section range */
939 /* test coverage */
940 Section *tcov_section;
941 /* debug state */
942 struct _tccdbg *dState;
943
944 /* Is there a new undefined sym since last new_undef_sym() */
945 int new_undef_sym;
946 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
947 struct sym_attr *sym_attrs;
948 int nb_sym_attrs;
949 /* ptr to next reloc entry reused */
950 ElfW_Rel *qrel;
951 #define qrel s1->qrel
952
953 #ifdef TCC_TARGET_RISCV64
954 struct pcrel_hi { addr_t addr, val; } last_hi;
955 #define last_hi s1->last_hi
956 #endif
957
958 #ifdef TCC_TARGET_PE
959 /* PE info */
960 int pe_subsystem;
961 unsigned pe_characteristics;
962 unsigned pe_file_align;
963 unsigned pe_stack_size;
964 addr_t pe_imagebase;
965 # ifdef TCC_TARGET_X86_64
966 Section *uw_pdata;
967 int uw_sym;
968 unsigned uw_offs;
969 # endif
970 #endif
971
972 #ifndef ELF_OBJ_ONLY
973 int nb_sym_versions;
974 struct sym_version *sym_versions;
975 int nb_sym_to_version;
976 int *sym_to_version;
977 int dt_verneednum;
978 Section *versym_section;
979 Section *verneed_section;
980 #endif
981
982 #ifdef TCC_IS_NATIVE
983 const char *runtime_main;
984 void **runtime_mem;
985 int nb_runtime_mem;
986 #endif
987
988 #ifdef CONFIG_TCC_BACKTRACE
989 int rt_num_callers;
990 #endif
991
992 /* benchmark info */
993 int total_idents;
994 int total_lines;
995 int total_bytes;
996 int total_output[4];
997
998 /* option -dnum (for general development purposes) */
999 int g_debug;
1000
1001 /* used by tcc_load_ldscript */
1002 int fd, cc;
1003
1004 /* for warnings/errors for object files */
1005 const char *current_filename;
1006
1007 /* used by main and tcc_parse_args only */
1008 struct filespec **files; /* files seen on command line */
1009 int nb_files; /* number thereof */
1010 int nb_libraries; /* number of libs thereof */
1011 char *outfile; /* output filename */
1012 char *deps_outfile; /* option -MF */
1013 int argc;
1014 char **argv;
1015 };
1016
1017 struct filespec {
1018 char type;
1019 char name[1];
1020 };
1021
1022 /* The current value can be: */
1023 #define VT_VALMASK 0x003f /* mask for value location, register or: */
1024 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
1025 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
1026 #define VT_LOCAL 0x0032 /* offset on stack */
1027 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
1028 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
1029 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
1030 #define VT_LVAL 0x0100 /* var is an lvalue */
1031 #define VT_SYM 0x0200 /* a symbol value is added */
1032 #define VT_MUSTCAST 0x0C00 /* value must be casted to be correct (used for
1033 char/short stored in integer registers) */
1034 #define VT_NONCONST 0x1000 /* VT_CONST, but not an (C standard) integer
1035 constant expression */
1036 #define VT_MUSTBOUND 0x4000 /* bound checking must be done before
1037 dereferencing value */
1038 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
1039 bounding function call point is in vc */
1040 /* types */
1041 #define VT_BTYPE 0x000f /* mask for basic type */
1042 #define VT_VOID 0 /* void type */
1043 #define VT_BYTE 1 /* signed byte type */
1044 #define VT_SHORT 2 /* short type */
1045 #define VT_INT 3 /* integer type */
1046 #define VT_LLONG 4 /* 64 bit integer */
1047 #define VT_PTR 5 /* pointer */
1048 #define VT_FUNC 6 /* function type */
1049 #define VT_STRUCT 7 /* struct/union definition */
1050 #define VT_FLOAT 8 /* IEEE float */
1051 #define VT_DOUBLE 9 /* IEEE double */
1052 #define VT_LDOUBLE 10 /* IEEE long double */
1053 #define VT_BOOL 11 /* ISOC99 boolean type */
1054 #define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
1055 #define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
1056
1057 #define VT_UNSIGNED 0x0010 /* unsigned type */
1058 #define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
1059 #define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
1060 #define VT_BITFIELD 0x0080 /* bitfield modifier */
1061 #define VT_CONSTANT 0x0100 /* const modifier */
1062 #define VT_VOLATILE 0x0200 /* volatile modifier */
1063 #define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
1064 #define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
1065
1066 /* storage */
1067 #define VT_EXTERN 0x00001000 /* extern definition */
1068 #define VT_STATIC 0x00002000 /* static variable */
1069 #define VT_TYPEDEF 0x00004000 /* typedef definition */
1070 #define VT_INLINE 0x00008000 /* inline definition */
1071 /* currently unused: 0x000[1248]0000 */
1072
1073 #define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
1074 #define VT_STRUCT_MASK (((1U << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
1075 #define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
1076 #define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
1077
1078 #define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
1079 #define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
1080 #define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
1081
1082 #define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
1083 #define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
1084 #define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
1085
1086 #define VT_ATOMIC VT_VOLATILE
1087
1088 /* type mask (except storage) */
1089 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
1090 #define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
1091
1092 /* symbol was created by tccasm.c first */
1093 #define VT_ASM (VT_VOID | 1 << VT_STRUCT_SHIFT)
1094 #define VT_ASM_FUNC (VT_ASM | 2 << VT_STRUCT_SHIFT)
1095 #define IS_ASM_SYM(sym) (((sym)->type.t & (VT_BTYPE | VT_ASM)) == VT_ASM)
1096
1097 /* general: set/get the pseudo-bitfield value for bit-mask M */
1098 #define BFVAL(M,N) ((unsigned)((M) & ~((M) << 1)) * (N))
1099 #define BFGET(X,M) (((X) & (M)) / BFVAL(M,1))
1100 #define BFSET(X,M,N) ((X) = ((X) & ~(M)) | BFVAL(M,N))
1101
1102 /* token values */
1103
1104 /* conditional ops */
1105 #define TOK_LAND 0x90
1106 #define TOK_LOR 0x91
1107 /* warning: the following compare tokens depend on i386 asm code */
1108 #define TOK_ULT 0x92
1109 #define TOK_UGE 0x93
1110 #define TOK_EQ 0x94
1111 #define TOK_NE 0x95
1112 #define TOK_ULE 0x96
1113 #define TOK_UGT 0x97
1114 #define TOK_Nset 0x98
1115 #define TOK_Nclear 0x99
1116 #define TOK_LT 0x9c
1117 #define TOK_GE 0x9d
1118 #define TOK_LE 0x9e
1119 #define TOK_GT 0x9f
1120
1121 #define TOK_ISCOND(t) (t >= TOK_LAND && t <= TOK_GT)
1122
1123 #define TOK_DEC 0x80 /* -- */
1124 #define TOK_MID 0x81 /* inc/dec, to void constant */
1125 #define TOK_INC 0x82 /* ++ */
1126 #define TOK_UDIV 0x83 /* unsigned division */
1127 #define TOK_UMOD 0x84 /* unsigned modulo */
1128 #define TOK_PDIV 0x85 /* fast division with undefined rounding for pointers */
1129 #define TOK_UMULL 0x86 /* unsigned 32x32 -> 64 mul */
1130 #define TOK_ADDC1 0x87 /* add with carry generation */
1131 #define TOK_ADDC2 0x88 /* add with carry use */
1132 #define TOK_SUBC1 0x89 /* add with carry generation */
1133 #define TOK_SUBC2 0x8a /* add with carry use */
1134 #define TOK_SHL '<' /* shift left */
1135 #define TOK_SAR '>' /* signed shift right */
1136 #define TOK_SHR 0x8b /* unsigned shift right */
1137 #define TOK_NEG TOK_MID /* unary minus operation (for floats) */
1138
1139 #define TOK_ARROW 0xa0 /* -> */
1140 #define TOK_DOTS 0xa1 /* three dots */
1141 #define TOK_TWODOTS 0xa2 /* C++ token ? */
1142 #define TOK_TWOSHARPS 0xa3 /* ## preprocessing token */
1143 #define TOK_PLCHLDR 0xa4 /* placeholder token as defined in C99 */
1144 #define TOK_NOSUBST 0xa5 /* means following token has already been pp'd */
1145 #define TOK_PPJOIN 0xa6 /* A '##' in the right position to mean pasting */
1146
1147 /* assignment operators */
1148 #define TOK_A_ADD 0xb0
1149 #define TOK_A_SUB 0xb1
1150 #define TOK_A_MUL 0xb2
1151 #define TOK_A_DIV 0xb3
1152 #define TOK_A_MOD 0xb4
1153 #define TOK_A_AND 0xb5
1154 #define TOK_A_OR 0xb6
1155 #define TOK_A_XOR 0xb7
1156 #define TOK_A_SHL 0xb8
1157 #define TOK_A_SAR 0xb9
1158
1159 #define TOK_ASSIGN(t) (t >= TOK_A_ADD && t <= TOK_A_SAR)
1160 #define TOK_ASSIGN_OP(t) ("+-*/%&|^<>"[t - TOK_A_ADD])
1161
1162 /* tokens that carry values (in additional token string space / tokc) --> */
1163 #define TOK_CCHAR 0xc0 /* char constant in tokc */
1164 #define TOK_LCHAR 0xc1
1165 #define TOK_CINT 0xc2 /* number in tokc */
1166 #define TOK_CUINT 0xc3 /* unsigned int constant */
1167 #define TOK_CLLONG 0xc4 /* long long constant */
1168 #define TOK_CULLONG 0xc5 /* unsigned long long constant */
1169 #define TOK_CLONG 0xc6 /* long constant */
1170 #define TOK_CULONG 0xc7 /* unsigned long constant */
1171 #define TOK_STR 0xc8 /* pointer to string in tokc */
1172 #define TOK_LSTR 0xc9
1173 #define TOK_CFLOAT 0xca /* float constant */
1174 #define TOK_CDOUBLE 0xcb /* double constant */
1175 #define TOK_CLDOUBLE 0xcc /* long double constant */
1176 #define TOK_PPNUM 0xcd /* preprocessor number */
1177 #define TOK_PPSTR 0xce /* preprocessor string */
1178 #define TOK_LINENUM 0xcf /* line number info */
1179
1180 #define TOK_HAS_VALUE(t) (t >= TOK_CCHAR && t <= TOK_LINENUM)
1181
1182 #define TOK_EOF (-1) /* end of file */
1183 #define TOK_LINEFEED 10 /* line feed */
1184
1185 /* all identifiers and strings have token above that */
1186 #define TOK_IDENT 256
1187
1188 enum tcc_token {
1189 TOK_LAST = TOK_IDENT - 1
1190 #define DEF(id, str) ,id
1191 #include "tcctok.h"
1192 #undef DEF
1193 };
1194
1195 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1196 #define TOK_UIDENT TOK_DEFINE
1197
1198 /* ------------ libtcc.c ------------ */
1199
1200 ST_DATA struct TCCState *tcc_state;
1201
1202 /* public functions currently used by the tcc main function */
1203 ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s);
1204 ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s);
1205 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1206 PUB_FUNC char *tcc_basename(const char *name);
1207 PUB_FUNC char *tcc_fileextension (const char *name);
1208
1209 #ifndef MEM_DEBUG
1210 PUB_FUNC void tcc_free(void *ptr);
1211 PUB_FUNC void *tcc_malloc(unsigned long size);
1212 PUB_FUNC void *tcc_mallocz(unsigned long size);
1213 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1214 PUB_FUNC char *tcc_strdup(const char *str);
1215 #else
1216 #define tcc_free(ptr) tcc_free_debug(ptr)
1217 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1218 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1219 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1220 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1221 PUB_FUNC void tcc_free_debug(void *ptr);
1222 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1223 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1224 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1225 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1226 #endif
1227
1228 #define free(p) use_tcc_free(p)
1229 #define malloc(s) use_tcc_malloc(s)
1230 #define realloc(p, s) use_tcc_realloc(p, s)
1231 #undef strdup
1232 #define strdup(s) use_tcc_strdup(s)
1233 PUB_FUNC void _tcc_error_noabort(const char *fmt, ...) PRINTF_LIKE(1,2);
1234 PUB_FUNC NORETURN void _tcc_error(const char *fmt, ...) PRINTF_LIKE(1,2);
1235 PUB_FUNC void _tcc_warning(const char *fmt, ...) PRINTF_LIKE(1,2);
1236 #define tcc_internal_error(msg) tcc_error("internal compiler error\n"\
1237 "%s:%d: in %s(): " msg, __FILE__,__LINE__,__FUNCTION__)
1238
1239 /* other utilities */
1240 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1241 ST_FUNC void dynarray_reset(void *pp, int *n);
1242 ST_INLN void cstr_ccat(CString *cstr, int ch);
1243 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1244 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1245 ST_FUNC void cstr_new(CString *cstr);
1246 ST_FUNC void cstr_free(CString *cstr);
1247 ST_FUNC int cstr_printf(CString *cs, const char *fmt, ...) PRINTF_LIKE(2,3);
1248 ST_FUNC int cstr_vprintf(CString *cstr, const char *fmt, va_list ap);
1249 ST_FUNC void cstr_reset(CString *cstr);
1250
1251 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1252 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1253 ST_FUNC void tcc_close(void);
1254
1255 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1256 /* flags: */
1257 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1258 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1259 #define AFF_TYPE_BIN 0x40 /* file to add is binary */
1260 #define AFF_WHOLE_ARCHIVE 0x80 /* load all objects from archive */
1261 /* s->filetype: */
1262 #define AFF_TYPE_NONE 0
1263 #define AFF_TYPE_C 1
1264 #define AFF_TYPE_ASM 2
1265 #define AFF_TYPE_ASMPP 4
1266 #define AFF_TYPE_LIB 8
1267 #define AFF_TYPE_MASK (15 | AFF_TYPE_BIN)
1268 /* values from tcc_object_type(...) */
1269 #define AFF_BINTYPE_REL 1
1270 #define AFF_BINTYPE_DYN 2
1271 #define AFF_BINTYPE_AR 3
1272 #define AFF_BINTYPE_C67 4
1273
1274 #ifndef ELF_OBJ_ONLY
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 ST_FUNC void tcc_add_support(TCCState *s1, const char *filename);
1279 #ifdef CONFIG_TCC_BCHECK
1280 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1281 #endif
1282 #ifdef CONFIG_TCC_BACKTRACE
1283 ST_FUNC void tcc_add_btstub(TCCState *s1);
1284 #endif
1285 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1286 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1287 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1288 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1289 #ifdef _WIN32
1290 ST_FUNC char *normalize_slashes(char *path);
1291 #endif
1292 ST_FUNC DLLReference *tcc_add_dllref(TCCState *s1, const char *dllname, int level);
1293 ST_FUNC char *tcc_load_text(int fd);
1294
1295 /* tcc_parse_args return codes: */
1296 #define OPT_HELP 1
1297 #define OPT_HELP2 2
1298 #define OPT_V 3
1299 #define OPT_PRINT_DIRS 4
1300 #define OPT_AR 5
1301 #define OPT_IMPDEF 6
1302 #define OPT_M32 32
1303 #define OPT_M64 64
1304
1305 /* ------------ tccpp.c ------------ */
1306
1307 ST_DATA struct BufferedFile *file;
1308 ST_DATA int tok;
1309 ST_DATA CValue tokc;
1310 ST_DATA const int *macro_ptr;
1311 ST_DATA int parse_flags;
1312 ST_DATA int tok_flags;
1313 ST_DATA CString tokcstr; /* current parsed string, if any */
1314
1315 /* display benchmark infos */
1316 ST_DATA int tok_ident;
1317 ST_DATA TokenSym **table_ident;
1318
1319 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1320 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1321 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1322 #define TOK_FLAG_EOF 0x0008 /* end of file */
1323
1324 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1325 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1326 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1327 token. line feed is also
1328 returned at eof */
1329 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1330 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1331 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1332 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1333
1334 /* isidnum_table flags: */
1335 #define IS_SPC 1
1336 #define IS_ID 2
1337 #define IS_NUM 4
1338
1339 enum line_macro_output_format {
1340 LINE_MACRO_OUTPUT_FORMAT_GCC,
1341 LINE_MACRO_OUTPUT_FORMAT_NONE,
1342 LINE_MACRO_OUTPUT_FORMAT_STD,
1343 LINE_MACRO_OUTPUT_FORMAT_P10 = 11
1344 };
1345
1346 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1347 ST_FUNC int tok_alloc_const(const char *str);
1348 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1349 ST_FUNC void begin_macro(TokenString *str, int alloc);
1350 ST_FUNC void end_macro(void);
1351 ST_FUNC int set_idnum(int c, int val);
1352 ST_INLN void tok_str_new(TokenString *s);
1353 ST_FUNC TokenString *tok_str_alloc(void);
1354 ST_FUNC void tok_str_free(TokenString *s);
1355 ST_FUNC void tok_str_free_str(int *str);
1356 ST_FUNC void tok_str_add(TokenString *s, int t);
1357 ST_FUNC void tok_str_add_tok(TokenString *s);
1358 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1359 ST_FUNC void define_undef(Sym *s);
1360 ST_INLN Sym *define_find(int v);
1361 ST_FUNC void free_defines(Sym *b);
1362 ST_FUNC Sym *label_find(int v);
1363 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1364 ST_FUNC void label_pop(Sym **ptop, Sym *slast, int keep);
1365 ST_FUNC void parse_define(void);
1366 ST_FUNC void preprocess(int is_bof);
1367 ST_FUNC void next(void);
1368 ST_INLN void unget_tok(int last_tok);
1369 ST_FUNC void preprocess_start(TCCState *s1, int filetype);
1370 ST_FUNC void preprocess_end(TCCState *s1);
1371 ST_FUNC void tccpp_new(TCCState *s);
1372 ST_FUNC void tccpp_delete(TCCState *s);
1373 ST_FUNC int tcc_preprocess(TCCState *s1);
1374 ST_FUNC void skip(int c);
1375 ST_FUNC NORETURN void expect(const char *msg);
1376
1377 /* space excluding newline */
1378 static inline int is_space(int ch) {
1379 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1380 }
1381 static inline int isid(int c) {
1382 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1383 }
1384 static inline int isnum(int c) {
1385 return c >= '0' && c <= '9';
1386 }
1387 static inline int isoct(int c) {
1388 return c >= '0' && c <= '7';
1389 }
1390 static inline int toup(int c) {
1391 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1392 }
1393
1394 /* ------------ tccgen.c ------------ */
1395
1396 #define SYM_POOL_NB (8192 / sizeof(Sym))
1397
1398 ST_DATA Sym *global_stack;
1399 ST_DATA Sym *local_stack;
1400 ST_DATA Sym *local_label_stack;
1401 ST_DATA Sym *global_label_stack;
1402 ST_DATA Sym *define_stack;
1403 ST_DATA CType int_type, func_old_type, char_pointer_type;
1404 ST_DATA SValue *vtop;
1405 ST_DATA int rsym, anon_sym, ind, loc;
1406 ST_DATA char debug_modes;
1407
1408 ST_DATA int const_wanted; /* true if constant wanted */
1409 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1410 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1411 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1412 ST_DATA int func_var; /* true if current function is variadic */
1413 ST_DATA int func_vc;
1414 ST_DATA int func_ind;
1415 ST_DATA const char *funcname;
1416
1417 ST_FUNC void tccgen_init(TCCState *s1);
1418 ST_FUNC int tccgen_compile(TCCState *s1);
1419 ST_FUNC void tccgen_finish(TCCState *s1);
1420 ST_FUNC void check_vstack(void);
1421
1422 ST_INLN int is_float(int t);
1423 ST_FUNC int ieee_finite(double d);
1424 ST_FUNC int exact_log2p1(int i);
1425 ST_FUNC void test_lvalue(void);
1426
1427 ST_FUNC ElfSym *elfsym(Sym *);
1428 ST_FUNC void update_storage(Sym *sym);
1429 ST_FUNC void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore);
1430 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1431 #if PTR_SIZE == 4
1432 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1433 #endif
1434 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1435
1436 ST_INLN void sym_free(Sym *sym);
1437 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1438 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1439 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, int c);
1440 ST_FUNC Sym *sym_find2(Sym *s, int v);
1441 ST_INLN Sym *sym_find(int v);
1442 ST_INLN Sym *struct_find(int v);
1443
1444 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1445 ST_FUNC Sym *external_global_sym(int v, CType *type);
1446 ST_FUNC Sym *external_helper_sym(int v);
1447 ST_FUNC void vpush_helper_func(int v);
1448 ST_FUNC void vset(CType *type, int r, int v);
1449 ST_FUNC void vset_VT_CMP(int op);
1450 ST_FUNC void vpushi(int v);
1451 ST_FUNC void vpushv(SValue *v);
1452 ST_FUNC void vpushsym(CType *type, Sym *sym);
1453 ST_FUNC void vswap(void);
1454 ST_FUNC void vrote(SValue *e, int n);
1455 ST_FUNC void vrott(int n);
1456 ST_FUNC void vrotb(int n);
1457 ST_FUNC void vpop(void);
1458 #if PTR_SIZE == 4
1459 ST_FUNC void lexpand(void);
1460 #endif
1461 #ifdef TCC_TARGET_ARM
1462 ST_FUNC int get_reg_ex(int rc, int rc2);
1463 #endif
1464 ST_FUNC void save_reg(int r);
1465 ST_FUNC void save_reg_upstack(int r, int n);
1466 ST_FUNC int get_reg(int rc);
1467 ST_FUNC void save_regs(int n);
1468 ST_FUNC void gaddrof(void);
1469 ST_FUNC int gv(int rc);
1470 ST_FUNC void gv2(int rc1, int rc2);
1471 ST_FUNC void gen_op(int op);
1472 ST_FUNC int type_size(CType *type, int *a);
1473 ST_FUNC void mk_pointer(CType *type);
1474 ST_FUNC void vstore(void);
1475 ST_FUNC void inc(int post, int c);
1476 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1477 ST_FUNC void parse_asm_str(CString *astr);
1478 ST_FUNC void indir(void);
1479 ST_FUNC void unary(void);
1480 ST_FUNC void gexpr(void);
1481 ST_FUNC int expr_const(void);
1482 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1483 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1484 #endif
1485 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1486 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1487 #endif
1488 #ifdef CONFIG_TCC_BCHECK
1489 ST_FUNC void gbound_args(int nb_args);
1490 ST_DATA int func_bound_add_epilog;
1491 #endif
1492
1493 /* ------------ tccelf.c ------------ */
1494
1495 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1496 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1497 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1498 #define TCC_OUTPUT_DYN TCC_OUTPUT_DLL
1499
1500 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1501
1502 typedef struct {
1503 unsigned int n_strx; /* index into string table of name */
1504 unsigned char n_type; /* type of symbol */
1505 unsigned char n_other; /* misc info (usually empty) */
1506 unsigned short n_desc; /* description field */
1507 unsigned int n_value; /* value of symbol */
1508 } Stab_Sym;
1509
1510 ST_FUNC void tccelf_new(TCCState *s);
1511 ST_FUNC void tccelf_delete(TCCState *s);
1512 ST_FUNC void tccelf_begin_file(TCCState *s1);
1513 ST_FUNC void tccelf_end_file(TCCState *s1);
1514 #ifdef CONFIG_TCC_BCHECK
1515 ST_FUNC void tccelf_bounds_new(TCCState *s);
1516 #endif
1517 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1518 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1519 ST_FUNC size_t section_add(Section *sec, addr_t size, int align);
1520 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1521 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1522 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);
1523
1524 ST_FUNC int put_elf_str(Section *s, const char *sym);
1525 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1526 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1527 ST_FUNC int find_elf_sym(Section *s, const char *name);
1528 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1529 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1530
1531 ST_FUNC void resolve_common_syms(TCCState *s1);
1532 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1533 ST_FUNC void relocate_sections(TCCState *s1);
1534
1535 ST_FUNC ssize_t full_read(int fd, void *buf, size_t count);
1536 ST_FUNC void *load_data(int fd, unsigned long file_offset, unsigned long size);
1537 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1538 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1539 ST_FUNC int tcc_load_archive(TCCState *s1, int fd, int alacarte);
1540 ST_FUNC void add_array(TCCState *s1, const char *sec, int c);
1541
1542 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1543 ST_FUNC addr_t get_sym_addr(TCCState *s, const char *name, int err, int forc);
1544 ST_FUNC void list_elf_symbols(TCCState *s, void *ctx,
1545 void (*symbol_cb)(void *ctx, const char *name, const void *val));
1546 ST_FUNC int set_global_sym(TCCState *s1, const char *name, Section *sec, addr_t offs);
1547
1548 /* Browse each elem of type <type> in section <sec> starting at elem <startoff>
1549 using variable <elem> */
1550 #define for_each_elem(sec, startoff, elem, type) \
1551 for (elem = (type *) sec->data + startoff; \
1552 elem < (type *) (sec->data + sec->data_offset); elem++)
1553
1554 #ifndef ELF_OBJ_ONLY
1555 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1556 ST_FUNC int tcc_load_ldscript(TCCState *s1, int fd);
1557 #endif
1558 #ifndef TCC_TARGET_PE
1559 ST_FUNC void tcc_add_runtime(TCCState *s1);
1560 #endif
1561
1562 /* ------------ xxx-link.c ------------ */
1563
1564 #if !defined ELF_OBJ_ONLY || defined TCC_TARGET_MACHO
1565 ST_FUNC int code_reloc (int reloc_type);
1566 ST_FUNC int gotplt_entry_type (int reloc_type);
1567 /* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1568 that unknown relocation don't create a GOT or PLT entry */
1569 enum gotplt_entry {
1570 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1571 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1572 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1573 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1574 };
1575 #define NEED_RELOC_TYPE
1576
1577 #if !defined TCC_TARGET_MACHO || defined TCC_IS_NATIVE
1578 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1579 ST_FUNC void relocate_plt(TCCState *s1);
1580 ST_FUNC void build_got_entries(TCCState *s1, int got_sym); /* in tccelf.c */
1581 #define NEED_BUILD_GOT
1582
1583 #endif
1584 #endif
1585
1586 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
1587
1588 /* ------------ xxx-gen.c ------------ */
1589 ST_DATA const char * const target_machine_defs;
1590 ST_DATA const int reg_classes[NB_REGS];
1591
1592 ST_FUNC void gsym_addr(int t, int a);
1593 ST_FUNC void gsym(int t);
1594 ST_FUNC void load(int r, SValue *sv);
1595 ST_FUNC void store(int r, SValue *v);
1596 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1597 ST_FUNC void gfunc_call(int nb_args);
1598 ST_FUNC void gfunc_prolog(Sym *func_sym);
1599 ST_FUNC void gfunc_epilog(void);
1600 ST_FUNC void gen_fill_nops(int);
1601 ST_FUNC int gjmp(int t);
1602 ST_FUNC void gjmp_addr(int a);
1603 ST_FUNC int gjmp_cond(int op, int t);
1604 ST_FUNC int gjmp_append(int n, int t);
1605 ST_FUNC void gen_opi(int op);
1606 ST_FUNC void gen_opf(int op);
1607 ST_FUNC void gen_cvt_ftoi(int t);
1608 ST_FUNC void gen_cvt_itof(int t);
1609 ST_FUNC void gen_cvt_ftof(int t);
1610 ST_FUNC void ggoto(void);
1611 #ifndef TCC_TARGET_C67
1612 ST_FUNC void o(unsigned int c);
1613 #endif
1614 ST_FUNC void gen_vla_sp_save(int addr);
1615 ST_FUNC void gen_vla_sp_restore(int addr);
1616 ST_FUNC void gen_vla_alloc(CType *type, int align);
1617
1618 static inline uint16_t read16le(unsigned char *p) {
1619 return p[0] | (uint16_t)p[1] << 8;
1620 }
1621 static inline void write16le(unsigned char *p, uint16_t x) {
1622 p[0] = x & 255; p[1] = x >> 8 & 255;
1623 }
1624 static inline uint32_t read32le(unsigned char *p) {
1625 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1626 }
1627 static inline void write32le(unsigned char *p, uint32_t x) {
1628 write16le(p, x); write16le(p + 2, x >> 16);
1629 }
1630 static inline void add32le(unsigned char *p, int32_t x) {
1631 write32le(p, read32le(p) + x);
1632 }
1633 static inline uint64_t read64le(unsigned char *p) {
1634 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1635 }
1636 static inline void write64le(unsigned char *p, uint64_t x) {
1637 write32le(p, x); write32le(p + 4, x >> 32);
1638 }
1639 static inline void add64le(unsigned char *p, int64_t x) {
1640 write64le(p, read64le(p) + x);
1641 }
1642
1643 /* ------------ i386-gen.c ------------ */
1644 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
1645 ST_FUNC void g(int c);
1646 ST_FUNC void gen_le16(int c);
1647 ST_FUNC void gen_le32(int c);
1648 #endif
1649 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1650 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1651 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1652 ST_FUNC void gen_cvt_csti(int t);
1653 ST_FUNC void gen_increment_tcov (SValue *sv);
1654 #endif
1655
1656 /* ------------ x86_64-gen.c ------------ */
1657 #ifdef TCC_TARGET_X86_64
1658 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1659 ST_FUNC void gen_opl(int op);
1660 #ifdef TCC_TARGET_PE
1661 ST_FUNC void gen_vla_result(int addr);
1662 #endif
1663 ST_FUNC void gen_cvt_sxtw(void);
1664 ST_FUNC void gen_cvt_csti(int t);
1665 #endif
1666
1667 /* ------------ arm-gen.c ------------ */
1668 #ifdef TCC_TARGET_ARM
1669 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1670 PUB_FUNC const char *default_elfinterp(struct TCCState *s);
1671 #endif
1672 ST_FUNC void arm_init(struct TCCState *s);
1673 ST_FUNC void gen_increment_tcov (SValue *sv);
1674 #endif
1675
1676 /* ------------ arm64-gen.c ------------ */
1677 #ifdef TCC_TARGET_ARM64
1678 ST_FUNC void gen_opl(int op);
1679 ST_FUNC void gfunc_return(CType *func_type);
1680 ST_FUNC void gen_va_start(void);
1681 ST_FUNC void gen_va_arg(CType *t);
1682 ST_FUNC void gen_clear_cache(void);
1683 ST_FUNC void gen_cvt_sxtw(void);
1684 ST_FUNC void gen_cvt_csti(int t);
1685 ST_FUNC void gen_increment_tcov (SValue *sv);
1686 #endif
1687
1688 /* ------------ riscv64-gen.c ------------ */
1689 #ifdef TCC_TARGET_RISCV64
1690 ST_FUNC void gen_opl(int op);
1691 //ST_FUNC void gfunc_return(CType *func_type);
1692 ST_FUNC void gen_va_start(void);
1693 ST_FUNC void arch_transfer_ret_regs(int);
1694 ST_FUNC void gen_cvt_sxtw(void);
1695 ST_FUNC void gen_increment_tcov (SValue *sv);
1696 #endif
1697
1698 /* ------------ c67-gen.c ------------ */
1699 #ifdef TCC_TARGET_C67
1700 #endif
1701
1702 /* ------------ tcccoff.c ------------ */
1703 #ifdef TCC_TARGET_COFF
1704 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1705 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1706 #endif
1707
1708 /* ------------ tccasm.c ------------ */
1709 ST_FUNC void asm_instr(void);
1710 ST_FUNC void asm_global_instr(void);
1711 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1712 #ifdef CONFIG_TCC_ASM
1713 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1714 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1715 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1716 ST_FUNC int asm_int_expr(TCCState *s1);
1717 /* ------------ i386-asm.c ------------ */
1718 ST_FUNC void gen_expr32(ExprValue *pe);
1719 #ifdef TCC_TARGET_X86_64
1720 ST_FUNC void gen_expr64(ExprValue *pe);
1721 #endif
1722 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1723 ST_FUNC int asm_parse_regvar(int t);
1724 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1725 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1726 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1727 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1728 #endif
1729
1730 /* ------------ tccpe.c -------------- */
1731 #ifdef TCC_TARGET_PE
1732 ST_FUNC int pe_load_file(struct TCCState *s1, int fd, const char *filename);
1733 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1734 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1735 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1736 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1737 #endif
1738 #ifdef TCC_TARGET_X86_64
1739 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1740 #endif
1741 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1742 /* symbol properties stored in Elf32_Sym->st_other */
1743 # define ST_PE_EXPORT 0x10
1744 # define ST_PE_IMPORT 0x20
1745 # define ST_PE_STDCALL 0x40
1746 #endif
1747 #define ST_ASM_SET 0x04
1748
1749 /* ------------ tccmacho.c ----------------- */
1750 #ifdef TCC_TARGET_MACHO
1751 ST_FUNC int macho_output_file(TCCState * s1, const char *filename);
1752 ST_FUNC int macho_load_dll(TCCState *s1, int fd, const char *filename, int lev);
1753 ST_FUNC int macho_load_tbd(TCCState *s1, int fd, const char *filename, int lev);
1754 #ifdef TCC_IS_NATIVE
1755 ST_FUNC void tcc_add_macos_sdkpath(TCCState* s);
1756 ST_FUNC const char* macho_tbd_soname(const char* filename);
1757 #endif
1758 #endif
1759 /* ------------ tccrun.c ----------------- */
1760 #ifdef TCC_IS_NATIVE
1761 #ifdef CONFIG_TCC_STATIC
1762 #define RTLD_LAZY 0x001
1763 #define RTLD_NOW 0x002
1764 #define RTLD_GLOBAL 0x100
1765 #define RTLD_DEFAULT NULL
1766 /* dummy function for profiling */
1767 ST_FUNC void *dlopen(const char *filename, int flag);
1768 ST_FUNC void dlclose(void *p);
1769 ST_FUNC const char *dlerror(void);
1770 ST_FUNC void *dlsym(void *handle, const char *symbol);
1771 #endif
1772 ST_FUNC void tcc_run_free(TCCState *s1);
1773 #endif
1774
1775 /* ------------ tcctools.c ----------------- */
1776 #if 0 /* included in tcc.c */
1777 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1778 #ifdef TCC_TARGET_PE
1779 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1780 #endif
1781 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1782 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1783 #endif
1784
1785 /* ------------ tccdbg.c ------------ */
1786
1787 ST_FUNC void tcc_debug_new(TCCState *s);
1788
1789 ST_FUNC void tcc_debug_start(TCCState *s1);
1790 ST_FUNC void tcc_debug_end(TCCState *s1);
1791 ST_FUNC void tcc_debug_bincl(TCCState *s1);
1792 ST_FUNC void tcc_debug_eincl(TCCState *s1);
1793 ST_FUNC void tcc_debug_putfile(TCCState *s1, const char *filename);
1794
1795 ST_FUNC void tcc_debug_line(TCCState *s1);
1796 ST_FUNC void tcc_add_debug_info(TCCState *s1, int param, Sym *s, Sym *e);
1797 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1798 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1799 ST_FUNC void tcc_debug_extern_sym(TCCState *s1, Sym *sym, int sh_num, int sym_bind, int sym_type);
1800 ST_FUNC void tcc_debug_typedef(TCCState *s1, Sym *sym);
1801 ST_FUNC void tcc_debug_stabn(TCCState *s1, int type, int value);
1802 ST_FUNC void tcc_debug_fix_anon(TCCState *s1, CType *t);
1803
1804 ST_FUNC void tcc_tcov_start(TCCState *s1);
1805 ST_FUNC void tcc_tcov_end(TCCState *s1);
1806 ST_FUNC void tcc_tcov_check_line(TCCState *s1, int start);
1807 ST_FUNC void tcc_tcov_block_end(TCCState *s1, int line);
1808 ST_FUNC void tcc_tcov_block_begin(TCCState *s1);
1809 ST_FUNC void tcc_tcov_reset_ind(TCCState *s1);
1810
1811 #define stab_section s1->stab_section
1812 #define stabstr_section stab_section->link
1813 #define tcov_section s1->tcov_section
1814 #define dwarf_info_section s1->dwarf_info_section
1815 #define dwarf_abbrev_section s1->dwarf_abbrev_section
1816 #define dwarf_line_section s1->dwarf_line_section
1817 #define dwarf_aranges_section s1->dwarf_aranges_section
1818 #define dwarf_str_section s1->dwarf_str_section
1819 #define dwarf_line_str_section s1->dwarf_line_str_section
1820
1821 /* default dwarf version for "-g". use 0 to emit stab debug infos */
1822 #ifndef DWARF_VERSION
1823 # define DWARF_VERSION 0
1824 #endif
1825
1826 /* default dwarf version for "-gdwarf" */
1827 #ifdef TCC_TARGET_MACHO
1828 # define DEFAULT_DWARF_VERSION 2
1829 #else
1830 # define DEFAULT_DWARF_VERSION 5
1831 #endif
1832
1833 #if defined TCC_TARGET_PE
1834 # define R_DATA_32DW 'Z' /* fake code to avoid DLL relocs */
1835 #elif defined TCC_TARGET_X86_64
1836 # define R_DATA_32DW R_X86_64_32
1837 #else
1838 # define R_DATA_32DW R_DATA_32
1839 #endif
1840
1841 /********************************************************/
1842 #if CONFIG_TCC_SEMLOCK
1843 #if defined _WIN32
1844 typedef struct { int init; CRITICAL_SECTION cr; } TCCSem;
1845 #elif defined __APPLE__
1846 #include <dispatch/dispatch.h>
1847 typedef struct { int init; dispatch_semaphore_t sem; } TCCSem;
1848 #else
1849 #include <semaphore.h>
1850 typedef struct { int init; sem_t sem; } TCCSem;
1851 #endif
1852 ST_FUNC void wait_sem(TCCSem *p);
1853 ST_FUNC void post_sem(TCCSem *p);
1854 #define TCC_SEM(s) TCCSem s
1855 #define WAIT_SEM wait_sem
1856 #define POST_SEM post_sem
1857 #else
1858 #define TCC_SEM(s)
1859 #define WAIT_SEM(p)
1860 #define POST_SEM(p)
1861 #endif
1862
1863 /********************************************************/
1864 #undef ST_DATA
1865 #if ONE_SOURCE
1866 #define ST_DATA static
1867 #else
1868 #define ST_DATA
1869 #endif
1870 /********************************************************/
1871
1872 #define text_section TCC_STATE_VAR(text_section)
1873 #define data_section TCC_STATE_VAR(data_section)
1874 #define rodata_section TCC_STATE_VAR(rodata_section)
1875 #define bss_section TCC_STATE_VAR(bss_section)
1876 #define common_section TCC_STATE_VAR(common_section)
1877 #define cur_text_section TCC_STATE_VAR(cur_text_section)
1878 #define bounds_section TCC_STATE_VAR(bounds_section)
1879 #define lbounds_section TCC_STATE_VAR(lbounds_section)
1880 #define symtab_section TCC_STATE_VAR(symtab_section)
1881 #define gnu_ext TCC_STATE_VAR(gnu_ext)
1882 #define tcc_error_noabort TCC_SET_STATE(_tcc_error_noabort)
1883 #define tcc_error TCC_SET_STATE(_tcc_error)
1884 #define tcc_warning TCC_SET_STATE(_tcc_warning)
1885
1886 #define total_idents TCC_STATE_VAR(total_idents)
1887 #define total_lines TCC_STATE_VAR(total_lines)
1888 #define total_bytes TCC_STATE_VAR(total_bytes)
1889
1890 PUB_FUNC void tcc_enter_state(TCCState *s1);
1891 PUB_FUNC void tcc_exit_state(TCCState *s1);
1892
1893 /* conditional warning depending on switch */
1894 #define tcc_warning_c(sw) TCC_SET_STATE((\
1895 tcc_state->warn_num = offsetof(TCCState, sw) \
1896 - offsetof(TCCState, warn_none), _tcc_warning))
1897
1898 /********************************************************/
1899 #endif /* _TCC_H */
1900
1901 #undef TCC_STATE_VAR
1902 #undef TCC_SET_STATE
1903
1904 #ifdef USING_GLOBALS
1905 # define TCC_STATE_VAR(sym) tcc_state->sym
1906 # define TCC_SET_STATE(fn) fn
1907 # undef USING_GLOBALS
1908 #else
1909 # define TCC_STATE_VAR(sym) s1->sym
1910 # define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn)
1911 #endif
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