?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
x86asm: Add lzcnt/tzcnt support
[tinycc.git] / tcc.h
blob144cc4bfcbc12bbf4c74d9ce609e2e950890fae4
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 CONFIG_NEW_MACHO && CONFIG_NEW_MACHO==0
217 # undef CONFIG_NEW_MACHO
218 #else
219 # define CONFIG_NEW_MACHO 1 /* enable new macho code */
220 #endif
221
222 #if defined TARGETOS_OpenBSD \
223 || defined TARGETOS_FreeBSD \
224 || defined TARGETOS_NetBSD \
225 || defined TARGETOS_FreeBSD_kernel
226 # define TARGETOS_BSD 1
227 #elif !(defined TCC_TARGET_PE || defined TCC_TARGET_MACHO)
228 # define TARGETOS_Linux 1
229 #endif
230
231 #if defined TCC_TARGET_PE || defined TCC_TARGET_MACHO
232 # define ELF_OBJ_ONLY /* create elf .o but native executables */
233 #endif
234
235 /* No ten-byte long doubles on window and macos except in
236 cross-compilers made by a mingw-GCC */
237 #if defined TCC_TARGET_PE \
238 || (defined TCC_TARGET_MACHO && defined TCC_TARGET_ARM64) \
239 || (defined _WIN32 && !defined __GNUC__)
240 # define TCC_USING_DOUBLE_FOR_LDOUBLE 1
241 #endif
242
243 #ifdef CONFIG_TCC_PIE
244 # define CONFIG_TCC_PIC 1
245 #endif
246
247 /* ------------ path configuration ------------ */
248
249 #ifndef CONFIG_SYSROOT
250 # define CONFIG_SYSROOT ""
251 #endif
252 #if !defined CONFIG_TCCDIR && !defined _WIN32
253 # define CONFIG_TCCDIR "/usr/local/lib/tcc"
254 #endif
255 #ifndef CONFIG_LDDIR
256 # define CONFIG_LDDIR "lib"
257 #endif
258 #ifdef CONFIG_TRIPLET
259 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
260 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
261 #else
262 # define USE_TRIPLET(s) s
263 # define ALSO_TRIPLET(s) s
264 #endif
265
266 /* path to find crt1.o, crti.o and crtn.o */
267 #ifndef CONFIG_TCC_CRTPREFIX
268 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
269 #endif
270
271 #ifndef CONFIG_USR_INCLUDE
272 # define CONFIG_USR_INCLUDE "/usr/include"
273 #endif
274
275 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
276
277 /* system include paths */
278 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
279 # if defined TCC_TARGET_PE || defined _WIN32
280 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include"PATHSEP"{B}/include/winapi"
281 # else
282 # define CONFIG_TCC_SYSINCLUDEPATHS \
283 "{B}/include" \
284 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
285 ":" ALSO_TRIPLET(CONFIG_SYSROOT CONFIG_USR_INCLUDE)
286 # endif
287 #endif
288
289 /* library search paths */
290 #ifndef CONFIG_TCC_LIBPATHS
291 # ifdef TCC_TARGET_PE
292 # define CONFIG_TCC_LIBPATHS "{B}/lib"
293 # else
294 # define CONFIG_TCC_LIBPATHS \
295 "{B}" \
296 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
297 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
298 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
299 # endif
300 #endif
301
302 /* name of ELF interpreter */
303 #ifndef CONFIG_TCC_ELFINTERP
304 # if TARGETOS_FreeBSD
305 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
306 # elif TARGETOS_FreeBSD_kernel
307 # if defined(TCC_TARGET_X86_64)
308 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
309 # else
310 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
311 # endif
312 # elif TARGETOS_DragonFly
313 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
314 # elif TARGETOS_NetBSD
315 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
316 # elif TARGETOS_OpenBSD
317 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.so"
318 # elif defined __GNU__
319 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
320 # elif defined(TCC_TARGET_PE)
321 # define CONFIG_TCC_ELFINTERP "-"
322 # elif defined(TCC_UCLIBC)
323 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
324 # elif defined TCC_TARGET_ARM64
325 # if defined(TCC_MUSL)
326 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
327 # else
328 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
329 # endif
330 # elif defined(TCC_TARGET_X86_64)
331 # if defined(TCC_MUSL)
332 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
333 # else
334 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
335 # endif
336 # elif defined(TCC_TARGET_RISCV64)
337 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-riscv64-lp64d.so.1"
338 # elif !defined(TCC_ARM_EABI)
339 # if defined(TCC_MUSL)
340 # if defined(TCC_TARGET_I386)
341 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-i386.so.1"
342 # else
343 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
344 # endif
345 # else
346 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
347 # endif
348 # endif
349 #endif
350
351 /* var elf_interp dans *-gen.c */
352 #ifdef CONFIG_TCC_ELFINTERP
353 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
354 #else
355 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
356 #endif
357
358 /* (target specific) libtcc1.a */
359 #ifndef TCC_LIBTCC1
360 # define TCC_LIBTCC1 "libtcc1.a"
361 #endif
362
363 #ifndef CONFIG_TCC_CROSSPREFIX
364 # define CONFIG_TCC_CROSSPREFIX ""
365 #endif
366
367 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
368 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
369 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
370 #endif
371
372 /* -------------------------------------------- */
373
374 #include "libtcc.h"
375 #include "elf.h"
376 #include "stab.h"
377 #include "dwarf.h"
378
379 /* -------------------------------------------- */
380
381 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
382 # define PUB_FUNC
383 #endif
384
385 #ifndef ONE_SOURCE
386 # define ONE_SOURCE 1
387 #endif
388
389 /* support using libtcc from threads */
390 #ifndef CONFIG_TCC_SEMLOCK
391 # define CONFIG_TCC_SEMLOCK 1
392 #endif
393
394 #if ONE_SOURCE
395 #define ST_INLN static inline
396 #define ST_FUNC static
397 #define ST_DATA static
398 #else
399 #define ST_INLN
400 #define ST_FUNC
401 #define ST_DATA extern
402 #endif
403
404 #ifdef TCC_PROFILE /* profile all functions */
405 # define static
406 #endif
407
408 /* -------------------------------------------- */
409 /* include the target specific definitions */
410
411 #define TARGET_DEFS_ONLY
412 #ifdef TCC_TARGET_I386
413 # include "i386-gen.c"
414 # include "i386-link.c"
415 #elif defined TCC_TARGET_X86_64
416 # include "x86_64-gen.c"
417 # include "x86_64-link.c"
418 #elif defined TCC_TARGET_ARM
419 # include "arm-gen.c"
420 # include "arm-link.c"
421 # include "arm-asm.c"
422 #elif defined TCC_TARGET_ARM64
423 # include "arm64-gen.c"
424 # include "arm64-link.c"
425 # include "arm-asm.c"
426 #elif defined TCC_TARGET_C67
427 # define TCC_TARGET_COFF
428 # include "coff.h"
429 # include "c67-gen.c"
430 # include "c67-link.c"
431 #elif defined(TCC_TARGET_RISCV64)
432 # include "riscv64-gen.c"
433 # include "riscv64-link.c"
434 # include "riscv64-asm.c"
435 #else
436 #error unknown target
437 #endif
438 #undef TARGET_DEFS_ONLY
439
440 /* -------------------------------------------- */
441
442 #if PTR_SIZE == 8
443 # define ELFCLASSW ELFCLASS64
444 # define ElfW(type) Elf##64##_##type
445 # define ELFW(type) ELF##64##_##type
446 # define ElfW_Rel ElfW(Rela)
447 # define SHT_RELX SHT_RELA
448 # define REL_SECTION_FMT ".rela%s"
449 #else
450 # define ELFCLASSW ELFCLASS32
451 # define ElfW(type) Elf##32##_##type
452 # define ELFW(type) ELF##32##_##type
453 # define ElfW_Rel ElfW(Rel)
454 # define SHT_RELX SHT_REL
455 # define REL_SECTION_FMT ".rel%s"
456 #endif
457 /* target address type */
458 #define addr_t ElfW(Addr)
459 #define ElfSym ElfW(Sym)
460
461 #if PTR_SIZE == 8 && !defined TCC_TARGET_PE
462 # define LONG_SIZE 8
463 #else
464 # define LONG_SIZE 4
465 #endif
466
467 /* -------------------------------------------- */
468
469 #define INCLUDE_STACK_SIZE 32
470 #define IFDEF_STACK_SIZE 64
471 #define VSTACK_SIZE 256
472 #define STRING_MAX_SIZE 1024
473 #define TOKSTR_MAX_SIZE 256
474 #define PACK_STACK_SIZE 8
475
476 #define TOK_HASH_SIZE 16384 /* must be a power of two */
477 #define TOK_ALLOC_INCR 512 /* must be a power of two */
478 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
479
480 /* token symbol management */
481 typedef struct TokenSym {
482 struct TokenSym *hash_next;
483 struct Sym *sym_define; /* direct pointer to define */
484 struct Sym *sym_label; /* direct pointer to label */
485 struct Sym *sym_struct; /* direct pointer to structure */
486 struct Sym *sym_identifier; /* direct pointer to identifier */
487 int tok; /* token number */
488 int len;
489 char str[1];
490 } TokenSym;
491
492 #ifdef TCC_TARGET_PE
493 typedef unsigned short nwchar_t;
494 #else
495 typedef int nwchar_t;
496 #endif
497
498 typedef struct CString {
499 int size; /* size in bytes */
500 void *data; /* either 'char *' or 'nwchar_t *' */
501 int size_allocated;
502 } CString;
503
504 /* type definition */
505 typedef struct CType {
506 int t;
507 struct Sym *ref;
508 } CType;
509
510 /* constant value */
511 typedef union CValue {
512 long double ld;
513 double d;
514 float f;
515 uint64_t i;
516 struct {
517 const void *data;
518 int size;
519 } str;
520 int tab[LDOUBLE_SIZE/4];
521 } CValue;
522
523 /* value on stack */
524 typedef struct SValue {
525 CType type; /* type */
526 unsigned short r; /* register + flags */
527 unsigned short r2; /* second register, used for 'long long'
528 type. If not used, set to VT_CONST */
529 union {
530 struct { int jtrue, jfalse; }; /* forward jmps */
531 CValue c; /* constant, if VT_CONST */
532 };
533 union {
534 struct { unsigned short cmp_op, cmp_r; }; /* VT_CMP operation */
535 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if */
536 }; /* result of unary() for an identifier. */
537
538 } SValue;
539
540 /* symbol attributes */
541 struct SymAttr {
542 unsigned short
543 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
544 packed : 1,
545 weak : 1,
546 visibility : 2,
547 dllexport : 1,
548 nodecorate : 1,
549 dllimport : 1,
550 addrtaken : 1,
551 xxxx : 3; /* not used */
552 };
553
554 /* function attributes or temporary attributes for parsing */
555 struct FuncAttr {
556 unsigned
557 func_call : 3, /* calling convention (0..5), see below */
558 func_type : 2, /* FUNC_OLD/NEW/ELLIPSIS */
559 func_noreturn : 1, /* attribute((noreturn)) */
560 func_ctor : 1, /* attribute((constructor)) */
561 func_dtor : 1, /* attribute((destructor)) */
562 func_args : 8, /* PE __stdcall args */
563 func_alwinl : 1, /* always_inline */
564 xxxx : 15;
565 };
566
567 /* symbol management */
568 typedef struct Sym {
569 int v; /* symbol token */
570 unsigned short r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
571 struct SymAttr a; /* symbol attributes */
572 union {
573 struct {
574 int c; /* associated number or Elf symbol index */
575 union {
576 int sym_scope; /* scope level for locals */
577 int jnext; /* next jump label */
578 struct FuncAttr f; /* function attributes */
579 int auxtype; /* bitfield access type */
580 };
581 };
582 long long enum_val; /* enum constant if IS_ENUM_VAL */
583 int *d; /* define token stream */
584 struct Sym *ncl; /* next cleanup */
585 };
586 CType type; /* associated type */
587 union {
588 int *vla_array_str; /* vla array code */
589 struct Sym *next; /* next related symbol (for fields and anoms) */
590 struct Sym *cleanupstate; /* in defined labels */
591 int asm_label; /* associated asm label */
592 };
593 struct Sym *prev; /* prev symbol in stack */
594 struct Sym *prev_tok; /* previous symbol for this token */
595 } Sym;
596
597 /* section definition */
598 typedef struct Section {
599 unsigned long data_offset; /* current data offset */
600 unsigned char *data; /* section data */
601 unsigned long data_allocated; /* used for realloc() handling */
602 TCCState *s1;
603 int sh_name; /* elf section name (only used during output) */
604 int sh_num; /* elf section number */
605 int sh_type; /* elf section type */
606 int sh_flags; /* elf section flags */
607 int sh_info; /* elf section info */
608 int sh_addralign; /* elf section alignment */
609 int sh_entsize; /* elf entry size */
610 unsigned long sh_size; /* section size (only used during output) */
611 addr_t sh_addr; /* address at which the section is relocated */
612 unsigned long sh_offset; /* file offset */
613 int nb_hashed_syms; /* used to resize the hash table */
614 struct Section *link; /* link to another section */
615 struct Section *reloc; /* corresponding section for relocation, if any */
616 struct Section *hash; /* hash table for symbols */
617 struct Section *prev; /* previous section on section stack */
618 char name[1]; /* section name */
619 } Section;
620
621 typedef struct DLLReference {
622 int level;
623 void *handle;
624 unsigned char found, index;
625 char name[1];
626 } DLLReference;
627
628 /* -------------------------------------------------- */
629
630 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
631 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
632 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
633
634 /* stored in 'Sym->f.func_type' field */
635 #define FUNC_NEW 1 /* ansi function prototype */
636 #define FUNC_OLD 2 /* old function prototype */
637 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
638
639 /* stored in 'Sym->f.func_call' field */
640 #define FUNC_CDECL 0 /* standard c call */
641 #define FUNC_STDCALL 1 /* pascal c call */
642 #define FUNC_FASTCALL1 2 /* first param in %eax */
643 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
644 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
645 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
646
647 /* field 'Sym.t' for macros */
648 #define MACRO_OBJ 0 /* object like macro */
649 #define MACRO_FUNC 1 /* function like macro */
650
651 /* field 'Sym.r' for C labels */
652 #define LABEL_DEFINED 0 /* label is defined */
653 #define LABEL_FORWARD 1 /* label is forward defined */
654 #define LABEL_DECLARED 2 /* label is declared but never used */
655 #define LABEL_GONE 3 /* label isn't in scope, but not yet popped
656 from local_label_stack (stmt exprs) */
657
658 /* type_decl() types */
659 #define TYPE_ABSTRACT 1 /* type without variable */
660 #define TYPE_DIRECT 2 /* type with variable */
661 #define TYPE_PARAM 4 /* type declares function parameter */
662 #define TYPE_NEST 8 /* nested call to post_type */
663
664 #define IO_BUF_SIZE 8192
665
666 typedef struct BufferedFile {
667 uint8_t *buf_ptr;
668 uint8_t *buf_end;
669 int fd;
670 struct BufferedFile *prev;
671 int line_num; /* current line number - here to simplify code */
672 int line_ref; /* tcc -E: last printed line */
673 int ifndef_macro; /* #ifndef macro / #endif search */
674 int ifndef_macro_saved; /* saved ifndef_macro */
675 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
676 int include_next_index; /* next search path */
677 char filename[1024]; /* filename */
678 char *true_filename; /* filename not modified by # line directive */
679 unsigned char unget[4];
680 unsigned char buffer[1]; /* extra size for CH_EOB char */
681 } BufferedFile;
682
683 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
684 #define CH_EOF (-1) /* end of file */
685
686 /* used to record tokens */
687 typedef struct TokenString {
688 int *str;
689 int len;
690 int lastlen;
691 int allocated_len;
692 int last_line_num;
693 int save_line_num;
694 /* used to chain token-strings with begin/end_macro() */
695 struct TokenString *prev;
696 const int *prev_ptr;
697 char alloc;
698 } TokenString;
699
700 /* GNUC attribute definition */
701 typedef struct AttributeDef {
702 struct SymAttr a;
703 struct FuncAttr f;
704 struct Section *section;
705 Sym *cleanup_func;
706 int alias_target; /* token */
707 int asm_label; /* associated asm label */
708 char attr_mode; /* __attribute__((__mode__(...))) */
709 } AttributeDef;
710
711 /* inline functions */
712 typedef struct InlineFunc {
713 TokenString *func_str;
714 Sym *sym;
715 char filename[1];
716 } InlineFunc;
717
718 /* include file cache, used to find files faster and also to eliminate
719 inclusion if the include file is protected by #ifndef ... #endif */
720 typedef struct CachedInclude {
721 int ifndef_macro;
722 int once;
723 int hash_next; /* -1 if none */
724 char filename[1]; /* path specified in #include */
725 } CachedInclude;
726
727 #define CACHED_INCLUDES_HASH_SIZE 32
728
729 #ifdef CONFIG_TCC_ASM
730 typedef struct ExprValue {
731 uint64_t v;
732 Sym *sym;
733 int pcrel;
734 } ExprValue;
735
736 #define MAX_ASM_OPERANDS 30
737 typedef struct ASMOperand {
738 int id; /* GCC 3 optional identifier (0 if number only supported) */
739 char *constraint;
740 char asm_str[16]; /* computed asm string for operand */
741 SValue *vt; /* C value of the expression */
742 int ref_index; /* if >= 0, gives reference to a output constraint */
743 int input_index; /* if >= 0, gives reference to an input constraint */
744 int priority; /* priority, used to assign registers */
745 int reg; /* if >= 0, register number used for this operand */
746 int is_llong; /* true if double register value */
747 int is_memory; /* true if memory operand */
748 int is_rw; /* for '+' modifier */
749 int is_label; /* for asm goto */
750 } ASMOperand;
751 #endif
752
753 /* extra symbol attributes (not in symbol table) */
754 struct sym_attr {
755 unsigned got_offset;
756 unsigned plt_offset;
757 int plt_sym;
758 int dyn_index;
759 #ifdef TCC_TARGET_ARM
760 unsigned char plt_thumb_stub:1;
761 #endif
762 };
763
764 struct TCCState {
765 unsigned char verbose; /* if true, display some information during compilation */
766 unsigned char nostdinc; /* if true, no standard headers are added */
767 unsigned char nostdlib; /* if true, no standard libraries are added */
768 unsigned char nocommon; /* if true, do not use common symbols for .bss data */
769 unsigned char static_link; /* if true, static linking is performed */
770 unsigned char rdynamic; /* if true, all symbols are exported */
771 unsigned char symbolic; /* if true, resolve symbols in the current module first */
772 unsigned char filetype; /* file type for compilation (NONE,C,ASM) */
773 unsigned char optimize; /* only to #define __OPTIMIZE__ */
774 unsigned char option_pthread; /* -pthread option */
775 unsigned char enable_new_dtags; /* -Wl,--enable-new-dtags */
776 unsigned int cversion; /* supported C ISO version, 199901 (the default), 201112, ... */
777
778 /* C language options */
779 unsigned char char_is_unsigned;
780 unsigned char leading_underscore;
781 unsigned char ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
782 unsigned char dollars_in_identifiers; /* allows '$' char in identifiers */
783 unsigned char ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
784
785 /* warning switches */
786 unsigned char warn_none;
787 unsigned char warn_all;
788 unsigned char warn_error;
789 unsigned char warn_write_strings;
790 unsigned char warn_unsupported;
791 unsigned char warn_implicit_function_declaration;
792 unsigned char warn_discarded_qualifiers;
793 #define WARN_ON 1 /* warning is on (-Woption) */
794 unsigned char warn_num; /* temp var for tcc_warning_c() */
795
796 unsigned char option_r; /* option -r */
797 unsigned char do_bench; /* option -bench */
798 unsigned char just_deps; /* option -M */
799 unsigned char gen_deps; /* option -MD */
800 unsigned char include_sys_deps; /* option -MD */
801
802 /* compile with debug symbol (and use them if error during execution) */
803 unsigned char do_debug;
804 unsigned char dwarf;
805 unsigned char do_backtrace;
806 #ifdef CONFIG_TCC_BCHECK
807 /* compile with built-in memory and bounds checker */
808 unsigned char do_bounds_check;
809 #endif
810 unsigned char test_coverage; /* generate test coverage code */
811
812 /* use GNU C extensions */
813 unsigned char gnu_ext;
814 /* use TinyCC extensions */
815 unsigned char tcc_ext;
816
817 unsigned char dflag; /* -dX value */
818 unsigned char Pflag; /* -P switch (LINE_MACRO_OUTPUT_FORMAT) */
819
820 #ifdef TCC_TARGET_X86_64
821 unsigned char nosse; /* For -mno-sse support. */
822 #endif
823 #ifdef TCC_TARGET_ARM
824 unsigned char float_abi; /* float ABI of the generated code*/
825 #endif
826
827 unsigned char has_text_addr;
828 addr_t text_addr; /* address of text section */
829 unsigned section_align; /* section alignment */
830 #ifdef TCC_TARGET_I386
831 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
832 #endif
833
834 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
835 char *soname; /* as specified on the command line (-soname) */
836 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
837 char *elf_entryname; /* "_start" unless set */
838 char *init_symbol; /* symbols to call at load-time (not used currently) */
839 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
840 char *mapfile; /* create a mapfile (not used currently) */
841
842 /* output type, see TCC_OUTPUT_XXX */
843 int output_type;
844 /* output format, see TCC_OUTPUT_FORMAT_xxx */
845 int output_format;
846 /* nth test to run with -dt -run */
847 int run_test;
848
849 /* array of all loaded dlls (including those referenced by loaded dlls) */
850 DLLReference **loaded_dlls;
851 int nb_loaded_dlls;
852
853 /* include paths */
854 char **include_paths;
855 int nb_include_paths;
856
857 char **sysinclude_paths;
858 int nb_sysinclude_paths;
859
860 /* library paths */
861 char **library_paths;
862 int nb_library_paths;
863
864 /* crt?.o object path */
865 char **crt_paths;
866 int nb_crt_paths;
867
868 /* -D / -U options */
869 CString cmdline_defs;
870 /* -include options */
871 CString cmdline_incl;
872
873 /* error handling */
874 void *error_opaque;
875 void (*error_func)(void *opaque, const char *msg);
876 int error_set_jmp_enabled;
877 jmp_buf error_jmp_buf;
878 int nb_errors;
879
880 /* output file for preprocessing (-E) */
881 FILE *ppfp;
882
883 /* for -MD/-MF: collected dependencies for this compilation */
884 char **target_deps;
885 int nb_target_deps;
886
887 /* compilation */
888 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
889 BufferedFile **include_stack_ptr;
890
891 int ifdef_stack[IFDEF_STACK_SIZE];
892 int *ifdef_stack_ptr;
893
894 /* included files enclosed with #ifndef MACRO */
895 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
896 CachedInclude **cached_includes;
897 int nb_cached_includes;
898
899 /* #pragma pack stack */
900 int pack_stack[PACK_STACK_SIZE];
901 int *pack_stack_ptr;
902 char **pragma_libs;
903 int nb_pragma_libs;
904
905 /* inline functions are stored as token lists and compiled last
906 only if referenced */
907 struct InlineFunc **inline_fns;
908 int nb_inline_fns;
909
910 /* sections */
911 Section **sections;
912 int nb_sections; /* number of sections, including first dummy section */
913
914 Section **priv_sections;
915 int nb_priv_sections; /* number of private sections */
916
917 /* predefined sections */
918 Section *text_section, *data_section, *rodata_section, *bss_section;
919 Section *common_section;
920 Section *cur_text_section; /* current section where function code is generated */
921 #ifdef CONFIG_TCC_BCHECK
922 /* bound check related sections */
923 Section *bounds_section; /* contains global data bound description */
924 Section *lbounds_section; /* contains local data bound description */
925 #endif
926 /* symbol section */
927 Section *symtab_section;
928 /* temporary dynamic symbol sections (for dll loading) */
929 Section *dynsymtab_section;
930 /* exported dynamic symbol section */
931 Section *dynsym;
932 /* copy of the global symtab_section variable */
933 Section *symtab;
934 /* got & plt handling */
935 Section *got, *plt;
936 /* debug sections */
937 Section *stab_section;
938 Section *dwarf_info_section;
939 Section *dwarf_abbrev_section;
940 Section *dwarf_line_section;
941 Section *dwarf_aranges_section;
942 Section *dwarf_str_section;
943 Section *dwarf_line_str_section;
944 int dwlo, dwhi; /* dwarf section range */
945 /* test coverage */
946 Section *tcov_section;
947 /* debug state */
948 struct _tccdbg *dState;
949
950 /* Is there a new undefined sym since last new_undef_sym() */
951 int new_undef_sym;
952 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
953 struct sym_attr *sym_attrs;
954 int nb_sym_attrs;
955 /* ptr to next reloc entry reused */
956 ElfW_Rel *qrel;
957 #define qrel s1->qrel
958
959 #ifdef TCC_TARGET_RISCV64
960 struct pcrel_hi { addr_t addr, val; } last_hi;
961 #define last_hi s1->last_hi
962 #endif
963
964 #ifdef TCC_TARGET_PE
965 /* PE info */
966 int pe_subsystem;
967 unsigned pe_characteristics;
968 unsigned pe_file_align;
969 unsigned pe_stack_size;
970 addr_t pe_imagebase;
971 # ifdef TCC_TARGET_X86_64
972 Section *uw_pdata;
973 int uw_sym;
974 unsigned uw_offs;
975 # endif
976 #endif
977
978 #ifndef ELF_OBJ_ONLY
979 int nb_sym_versions;
980 struct sym_version *sym_versions;
981 int nb_sym_to_version;
982 int *sym_to_version;
983 int dt_verneednum;
984 Section *versym_section;
985 Section *verneed_section;
986 #endif
987
988 #ifdef TCC_IS_NATIVE
989 const char *runtime_main;
990 void **runtime_mem;
991 int nb_runtime_mem;
992 #endif
993
994 #ifdef CONFIG_TCC_BACKTRACE
995 int rt_num_callers;
996 #endif
997
998 /* benchmark info */
999 int total_idents;
1000 int total_lines;
1001 int total_bytes;
1002 int total_output[4];
1003
1004 /* option -dnum (for general development purposes) */
1005 int g_debug;
1006
1007 /* used by tcc_load_ldscript */
1008 int fd, cc;
1009
1010 /* for warnings/errors for object files */
1011 const char *current_filename;
1012
1013 /* used by main and tcc_parse_args only */
1014 struct filespec **files; /* files seen on command line */
1015 int nb_files; /* number thereof */
1016 int nb_libraries; /* number of libs thereof */
1017 char *outfile; /* output filename */
1018 char *deps_outfile; /* option -MF */
1019 int argc;
1020 char **argv;
1021 };
1022
1023 struct filespec {
1024 char type;
1025 char name[1];
1026 };
1027
1028 /* The current value can be: */
1029 #define VT_VALMASK 0x003f /* mask for value location, register or: */
1030 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
1031 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
1032 #define VT_LOCAL 0x0032 /* offset on stack */
1033 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
1034 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
1035 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
1036 #define VT_LVAL 0x0100 /* var is an lvalue */
1037 #define VT_SYM 0x0200 /* a symbol value is added */
1038 #define VT_MUSTCAST 0x0C00 /* value must be casted to be correct (used for
1039 char/short stored in integer registers) */
1040 #define VT_NONCONST 0x1000 /* VT_CONST, but not an (C standard) integer
1041 constant expression */
1042 #define VT_MUSTBOUND 0x4000 /* bound checking must be done before
1043 dereferencing value */
1044 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
1045 bounding function call point is in vc */
1046 /* types */
1047 #define VT_BTYPE 0x000f /* mask for basic type */
1048 #define VT_VOID 0 /* void type */
1049 #define VT_BYTE 1 /* signed byte type */
1050 #define VT_SHORT 2 /* short type */
1051 #define VT_INT 3 /* integer type */
1052 #define VT_LLONG 4 /* 64 bit integer */
1053 #define VT_PTR 5 /* pointer */
1054 #define VT_FUNC 6 /* function type */
1055 #define VT_STRUCT 7 /* struct/union definition */
1056 #define VT_FLOAT 8 /* IEEE float */
1057 #define VT_DOUBLE 9 /* IEEE double */
1058 #define VT_LDOUBLE 10 /* IEEE long double */
1059 #define VT_BOOL 11 /* ISOC99 boolean type */
1060 #define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
1061 #define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
1062
1063 #define VT_UNSIGNED 0x0010 /* unsigned type */
1064 #define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
1065 #define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
1066 #define VT_BITFIELD 0x0080 /* bitfield modifier */
1067 #define VT_CONSTANT 0x0100 /* const modifier */
1068 #define VT_VOLATILE 0x0200 /* volatile modifier */
1069 #define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
1070 #define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
1071
1072 /* storage */
1073 #define VT_EXTERN 0x00001000 /* extern definition */
1074 #define VT_STATIC 0x00002000 /* static variable */
1075 #define VT_TYPEDEF 0x00004000 /* typedef definition */
1076 #define VT_INLINE 0x00008000 /* inline definition */
1077 /* currently unused: 0x000[1248]0000 */
1078
1079 #define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
1080 #define VT_STRUCT_MASK (((1U << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
1081 #define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
1082 #define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
1083
1084 #define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
1085 #define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
1086 #define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
1087
1088 #define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
1089 #define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
1090 #define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
1091
1092 #define VT_ATOMIC VT_VOLATILE
1093
1094 /* type mask (except storage) */
1095 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
1096 #define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
1097
1098 /* symbol was created by tccasm.c first */
1099 #define VT_ASM (VT_VOID | 1 << VT_STRUCT_SHIFT)
1100 #define VT_ASM_FUNC (VT_ASM | 2 << VT_STRUCT_SHIFT)
1101 #define IS_ASM_SYM(sym) (((sym)->type.t & (VT_BTYPE | VT_ASM)) == VT_ASM)
1102
1103 /* general: set/get the pseudo-bitfield value for bit-mask M */
1104 #define BFVAL(M,N) ((unsigned)((M) & ~((M) << 1)) * (N))
1105 #define BFGET(X,M) (((X) & (M)) / BFVAL(M,1))
1106 #define BFSET(X,M,N) ((X) = ((X) & ~(M)) | BFVAL(M,N))
1107
1108 /* token values */
1109
1110 /* conditional ops */
1111 #define TOK_LAND 0x90
1112 #define TOK_LOR 0x91
1113 /* warning: the following compare tokens depend on i386 asm code */
1114 #define TOK_ULT 0x92
1115 #define TOK_UGE 0x93
1116 #define TOK_EQ 0x94
1117 #define TOK_NE 0x95
1118 #define TOK_ULE 0x96
1119 #define TOK_UGT 0x97
1120 #define TOK_Nset 0x98
1121 #define TOK_Nclear 0x99
1122 #define TOK_LT 0x9c
1123 #define TOK_GE 0x9d
1124 #define TOK_LE 0x9e
1125 #define TOK_GT 0x9f
1126
1127 #define TOK_ISCOND(t) (t >= TOK_LAND && t <= TOK_GT)
1128
1129 #define TOK_DEC 0x80 /* -- */
1130 #define TOK_MID 0x81 /* inc/dec, to void constant */
1131 #define TOK_INC 0x82 /* ++ */
1132 #define TOK_UDIV 0x83 /* unsigned division */
1133 #define TOK_UMOD 0x84 /* unsigned modulo */
1134 #define TOK_PDIV 0x85 /* fast division with undefined rounding for pointers */
1135 #define TOK_UMULL 0x86 /* unsigned 32x32 -> 64 mul */
1136 #define TOK_ADDC1 0x87 /* add with carry generation */
1137 #define TOK_ADDC2 0x88 /* add with carry use */
1138 #define TOK_SUBC1 0x89 /* add with carry generation */
1139 #define TOK_SUBC2 0x8a /* add with carry use */
1140 #define TOK_SHL '<' /* shift left */
1141 #define TOK_SAR '>' /* signed shift right */
1142 #define TOK_SHR 0x8b /* unsigned shift right */
1143 #define TOK_NEG TOK_MID /* unary minus operation (for floats) */
1144
1145 #define TOK_ARROW 0xa0 /* -> */
1146 #define TOK_DOTS 0xa1 /* three dots */
1147 #define TOK_TWODOTS 0xa2 /* C++ token ? */
1148 #define TOK_TWOSHARPS 0xa3 /* ## preprocessing token */
1149 #define TOK_PLCHLDR 0xa4 /* placeholder token as defined in C99 */
1150 #define TOK_NOSUBST 0xa5 /* means following token has already been pp'd */
1151 #define TOK_PPJOIN 0xa6 /* A '##' in the right position to mean pasting */
1152
1153 /* assignment operators */
1154 #define TOK_A_ADD 0xb0
1155 #define TOK_A_SUB 0xb1
1156 #define TOK_A_MUL 0xb2
1157 #define TOK_A_DIV 0xb3
1158 #define TOK_A_MOD 0xb4
1159 #define TOK_A_AND 0xb5
1160 #define TOK_A_OR 0xb6
1161 #define TOK_A_XOR 0xb7
1162 #define TOK_A_SHL 0xb8
1163 #define TOK_A_SAR 0xb9
1164
1165 #define TOK_ASSIGN(t) (t >= TOK_A_ADD && t <= TOK_A_SAR)
1166 #define TOK_ASSIGN_OP(t) ("+-*/%&|^<>"[t - TOK_A_ADD])
1167
1168 /* tokens that carry values (in additional token string space / tokc) --> */
1169 #define TOK_CCHAR 0xc0 /* char constant in tokc */
1170 #define TOK_LCHAR 0xc1
1171 #define TOK_CINT 0xc2 /* number in tokc */
1172 #define TOK_CUINT 0xc3 /* unsigned int constant */
1173 #define TOK_CLLONG 0xc4 /* long long constant */
1174 #define TOK_CULLONG 0xc5 /* unsigned long long constant */
1175 #define TOK_CLONG 0xc6 /* long constant */
1176 #define TOK_CULONG 0xc7 /* unsigned long constant */
1177 #define TOK_STR 0xc8 /* pointer to string in tokc */
1178 #define TOK_LSTR 0xc9
1179 #define TOK_CFLOAT 0xca /* float constant */
1180 #define TOK_CDOUBLE 0xcb /* double constant */
1181 #define TOK_CLDOUBLE 0xcc /* long double constant */
1182 #define TOK_PPNUM 0xcd /* preprocessor number */
1183 #define TOK_PPSTR 0xce /* preprocessor string */
1184 #define TOK_LINENUM 0xcf /* line number info */
1185
1186 #define TOK_HAS_VALUE(t) (t >= TOK_CCHAR && t <= TOK_LINENUM)
1187
1188 #define TOK_EOF (-1) /* end of file */
1189 #define TOK_LINEFEED 10 /* line feed */
1190
1191 /* all identifiers and strings have token above that */
1192 #define TOK_IDENT 256
1193
1194 enum tcc_token {
1195 TOK_LAST = TOK_IDENT - 1
1196 #define DEF(id, str) ,id
1197 #include "tcctok.h"
1198 #undef DEF
1199 };
1200
1201 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1202 #define TOK_UIDENT TOK_DEFINE
1203
1204 /* ------------ libtcc.c ------------ */
1205
1206 ST_DATA struct TCCState *tcc_state;
1207
1208 /* public functions currently used by the tcc main function */
1209 ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s);
1210 ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s);
1211 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1212 PUB_FUNC char *tcc_basename(const char *name);
1213 PUB_FUNC char *tcc_fileextension (const char *name);
1214
1215 #ifndef MEM_DEBUG
1216 PUB_FUNC void tcc_free(void *ptr);
1217 PUB_FUNC void *tcc_malloc(unsigned long size);
1218 PUB_FUNC void *tcc_mallocz(unsigned long size);
1219 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1220 PUB_FUNC char *tcc_strdup(const char *str);
1221 #else
1222 #define tcc_free(ptr) tcc_free_debug(ptr)
1223 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1224 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1225 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1226 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1227 PUB_FUNC void tcc_free_debug(void *ptr);
1228 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1229 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1230 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1231 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1232 #endif
1233
1234 #define free(p) use_tcc_free(p)
1235 #define malloc(s) use_tcc_malloc(s)
1236 #define realloc(p, s) use_tcc_realloc(p, s)
1237 #undef strdup
1238 #define strdup(s) use_tcc_strdup(s)
1239 PUB_FUNC void _tcc_error_noabort(const char *fmt, ...) PRINTF_LIKE(1,2);
1240 PUB_FUNC NORETURN void _tcc_error(const char *fmt, ...) PRINTF_LIKE(1,2);
1241 PUB_FUNC void _tcc_warning(const char *fmt, ...) PRINTF_LIKE(1,2);
1242 #define tcc_internal_error(msg) tcc_error("internal compiler error\n"\
1243 "%s:%d: in %s(): " msg, __FILE__,__LINE__,__FUNCTION__)
1244
1245 /* other utilities */
1246 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1247 ST_FUNC void dynarray_reset(void *pp, int *n);
1248 ST_INLN void cstr_ccat(CString *cstr, int ch);
1249 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1250 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1251 ST_FUNC void cstr_new(CString *cstr);
1252 ST_FUNC void cstr_free(CString *cstr);
1253 ST_FUNC int cstr_printf(CString *cs, const char *fmt, ...) PRINTF_LIKE(2,3);
1254 ST_FUNC int cstr_vprintf(CString *cstr, const char *fmt, va_list ap);
1255 ST_FUNC void cstr_reset(CString *cstr);
1256
1257 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1258 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1259 ST_FUNC void tcc_close(void);
1260
1261 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1262 /* flags: */
1263 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1264 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1265 #define AFF_TYPE_BIN 0x40 /* file to add is binary */
1266 #define AFF_WHOLE_ARCHIVE 0x80 /* load all objects from archive */
1267 /* s->filetype: */
1268 #define AFF_TYPE_NONE 0
1269 #define AFF_TYPE_C 1
1270 #define AFF_TYPE_ASM 2
1271 #define AFF_TYPE_ASMPP 4
1272 #define AFF_TYPE_LIB 8
1273 #define AFF_TYPE_MASK (15 | AFF_TYPE_BIN)
1274 /* values from tcc_object_type(...) */
1275 #define AFF_BINTYPE_REL 1
1276 #define AFF_BINTYPE_DYN 2
1277 #define AFF_BINTYPE_AR 3
1278 #define AFF_BINTYPE_C67 4
1279
1280 #ifndef ELF_OBJ_ONLY
1281 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1282 #endif
1283 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1284 ST_FUNC void tcc_add_support(TCCState *s1, const char *filename);
1285 #ifdef CONFIG_TCC_BCHECK
1286 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1287 #endif
1288 #ifdef CONFIG_TCC_BACKTRACE
1289 ST_FUNC void tcc_add_btstub(TCCState *s1);
1290 #endif
1291 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1292 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1293 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1294 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1295 #ifdef _WIN32
1296 ST_FUNC char *normalize_slashes(char *path);
1297 #endif
1298 ST_FUNC DLLReference *tcc_add_dllref(TCCState *s1, const char *dllname, int level);
1299 ST_FUNC char *tcc_load_text(int fd);
1300
1301 /* tcc_parse_args return codes: */
1302 #define OPT_HELP 1
1303 #define OPT_HELP2 2
1304 #define OPT_V 3
1305 #define OPT_PRINT_DIRS 4
1306 #define OPT_AR 5
1307 #define OPT_IMPDEF 6
1308 #define OPT_M32 32
1309 #define OPT_M64 64
1310
1311 /* ------------ tccpp.c ------------ */
1312
1313 ST_DATA struct BufferedFile *file;
1314 ST_DATA int tok;
1315 ST_DATA CValue tokc;
1316 ST_DATA const int *macro_ptr;
1317 ST_DATA int parse_flags;
1318 ST_DATA int tok_flags;
1319 ST_DATA CString tokcstr; /* current parsed string, if any */
1320
1321 /* display benchmark infos */
1322 ST_DATA int tok_ident;
1323 ST_DATA TokenSym **table_ident;
1324
1325 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1326 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1327 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1328 #define TOK_FLAG_EOF 0x0008 /* end of file */
1329
1330 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1331 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1332 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1333 token. line feed is also
1334 returned at eof */
1335 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1336 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1337 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1338 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1339
1340 /* isidnum_table flags: */
1341 #define IS_SPC 1
1342 #define IS_ID 2
1343 #define IS_NUM 4
1344
1345 enum line_macro_output_format {
1346 LINE_MACRO_OUTPUT_FORMAT_GCC,
1347 LINE_MACRO_OUTPUT_FORMAT_NONE,
1348 LINE_MACRO_OUTPUT_FORMAT_STD,
1349 LINE_MACRO_OUTPUT_FORMAT_P10 = 11
1350 };
1351
1352 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1353 ST_FUNC int tok_alloc_const(const char *str);
1354 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1355 ST_FUNC void begin_macro(TokenString *str, int alloc);
1356 ST_FUNC void end_macro(void);
1357 ST_FUNC int set_idnum(int c, int val);
1358 ST_INLN void tok_str_new(TokenString *s);
1359 ST_FUNC TokenString *tok_str_alloc(void);
1360 ST_FUNC void tok_str_free(TokenString *s);
1361 ST_FUNC void tok_str_free_str(int *str);
1362 ST_FUNC void tok_str_add(TokenString *s, int t);
1363 ST_FUNC void tok_str_add_tok(TokenString *s);
1364 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1365 ST_FUNC void define_undef(Sym *s);
1366 ST_INLN Sym *define_find(int v);
1367 ST_FUNC void free_defines(Sym *b);
1368 ST_FUNC Sym *label_find(int v);
1369 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1370 ST_FUNC void label_pop(Sym **ptop, Sym *slast, int keep);
1371 ST_FUNC void parse_define(void);
1372 ST_FUNC void preprocess(int is_bof);
1373 ST_FUNC void next(void);
1374 ST_INLN void unget_tok(int last_tok);
1375 ST_FUNC void preprocess_start(TCCState *s1, int filetype);
1376 ST_FUNC void preprocess_end(TCCState *s1);
1377 ST_FUNC void tccpp_new(TCCState *s);
1378 ST_FUNC void tccpp_delete(TCCState *s);
1379 ST_FUNC int tcc_preprocess(TCCState *s1);
1380 ST_FUNC void skip(int c);
1381 ST_FUNC NORETURN void expect(const char *msg);
1382
1383 /* space excluding newline */
1384 static inline int is_space(int ch) {
1385 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1386 }
1387 static inline int isid(int c) {
1388 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1389 }
1390 static inline int isnum(int c) {
1391 return c >= '0' && c <= '9';
1392 }
1393 static inline int isoct(int c) {
1394 return c >= '0' && c <= '7';
1395 }
1396 static inline int toup(int c) {
1397 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1398 }
1399
1400 /* ------------ tccgen.c ------------ */
1401
1402 #define SYM_POOL_NB (8192 / sizeof(Sym))
1403
1404 ST_DATA Sym *global_stack;
1405 ST_DATA Sym *local_stack;
1406 ST_DATA Sym *local_label_stack;
1407 ST_DATA Sym *global_label_stack;
1408 ST_DATA Sym *define_stack;
1409 ST_DATA CType int_type, func_old_type, char_pointer_type;
1410 ST_DATA SValue *vtop;
1411 ST_DATA int rsym, anon_sym, ind, loc;
1412 ST_DATA char debug_modes;
1413
1414 ST_DATA int const_wanted; /* true if constant wanted */
1415 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1416 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1417 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1418 ST_DATA int func_var; /* true if current function is variadic */
1419 ST_DATA int func_vc;
1420 ST_DATA int func_ind;
1421 ST_DATA const char *funcname;
1422
1423 ST_FUNC void tccgen_init(TCCState *s1);
1424 ST_FUNC int tccgen_compile(TCCState *s1);
1425 ST_FUNC void tccgen_finish(TCCState *s1);
1426 ST_FUNC void check_vstack(void);
1427
1428 ST_INLN int is_float(int t);
1429 ST_FUNC int ieee_finite(double d);
1430 ST_FUNC int exact_log2p1(int i);
1431 ST_FUNC void test_lvalue(void);
1432
1433 ST_FUNC ElfSym *elfsym(Sym *);
1434 ST_FUNC void update_storage(Sym *sym);
1435 ST_FUNC void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore);
1436 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1437 #if PTR_SIZE == 4
1438 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1439 #endif
1440 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1441
1442 ST_INLN void sym_free(Sym *sym);
1443 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1444 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1445 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, int c);
1446 ST_FUNC Sym *sym_find2(Sym *s, int v);
1447 ST_INLN Sym *sym_find(int v);
1448 ST_INLN Sym *struct_find(int v);
1449
1450 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1451 ST_FUNC Sym *external_global_sym(int v, CType *type);
1452 ST_FUNC Sym *external_helper_sym(int v);
1453 ST_FUNC void vpush_helper_func(int v);
1454 ST_FUNC void vset(CType *type, int r, int v);
1455 ST_FUNC void vset_VT_CMP(int op);
1456 ST_FUNC void vpushi(int v);
1457 ST_FUNC void vpushv(SValue *v);
1458 ST_FUNC void vpushsym(CType *type, Sym *sym);
1459 ST_FUNC void vswap(void);
1460 ST_FUNC void vrote(SValue *e, int n);
1461 ST_FUNC void vrott(int n);
1462 ST_FUNC void vrotb(int n);
1463 ST_FUNC void vpop(void);
1464 #if PTR_SIZE == 4
1465 ST_FUNC void lexpand(void);
1466 #endif
1467 #ifdef TCC_TARGET_ARM
1468 ST_FUNC int get_reg_ex(int rc, int rc2);
1469 #endif
1470 ST_FUNC void save_reg(int r);
1471 ST_FUNC void save_reg_upstack(int r, int n);
1472 ST_FUNC int get_reg(int rc);
1473 ST_FUNC void save_regs(int n);
1474 ST_FUNC void gaddrof(void);
1475 ST_FUNC int gv(int rc);
1476 ST_FUNC void gv2(int rc1, int rc2);
1477 ST_FUNC void gen_op(int op);
1478 ST_FUNC int type_size(CType *type, int *a);
1479 ST_FUNC void mk_pointer(CType *type);
1480 ST_FUNC void vstore(void);
1481 ST_FUNC void inc(int post, int c);
1482 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1483 ST_FUNC void parse_asm_str(CString *astr);
1484 ST_FUNC void indir(void);
1485 ST_FUNC void unary(void);
1486 ST_FUNC void gexpr(void);
1487 ST_FUNC int expr_const(void);
1488 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1489 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1490 #endif
1491 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1492 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1493 #endif
1494 #ifdef CONFIG_TCC_BCHECK
1495 ST_FUNC void gbound_args(int nb_args);
1496 ST_DATA int func_bound_add_epilog;
1497 #endif
1498
1499 /* ------------ tccelf.c ------------ */
1500
1501 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1502 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1503 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1504 #define TCC_OUTPUT_DYN TCC_OUTPUT_DLL
1505
1506 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1507
1508 typedef struct {
1509 unsigned int n_strx; /* index into string table of name */
1510 unsigned char n_type; /* type of symbol */
1511 unsigned char n_other; /* misc info (usually empty) */
1512 unsigned short n_desc; /* description field */
1513 unsigned int n_value; /* value of symbol */
1514 } Stab_Sym;
1515
1516 ST_FUNC void tccelf_new(TCCState *s);
1517 ST_FUNC void tccelf_delete(TCCState *s);
1518 ST_FUNC void tccelf_begin_file(TCCState *s1);
1519 ST_FUNC void tccelf_end_file(TCCState *s1);
1520 #ifdef CONFIG_TCC_BCHECK
1521 ST_FUNC void tccelf_bounds_new(TCCState *s);
1522 #endif
1523 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1524 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1525 ST_FUNC size_t section_add(Section *sec, addr_t size, int align);
1526 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1527 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1528 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);
1529
1530 ST_FUNC int put_elf_str(Section *s, const char *sym);
1531 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1532 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1533 ST_FUNC int find_elf_sym(Section *s, const char *name);
1534 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1535 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1536
1537 ST_FUNC void resolve_common_syms(TCCState *s1);
1538 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1539 ST_FUNC void relocate_sections(TCCState *s1);
1540
1541 ST_FUNC ssize_t full_read(int fd, void *buf, size_t count);
1542 ST_FUNC void *load_data(int fd, unsigned long file_offset, unsigned long size);
1543 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1544 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1545 ST_FUNC int tcc_load_archive(TCCState *s1, int fd, int alacarte);
1546 ST_FUNC void add_array(TCCState *s1, const char *sec, int c);
1547
1548 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1549 ST_FUNC addr_t get_sym_addr(TCCState *s, const char *name, int err, int forc);
1550 ST_FUNC void list_elf_symbols(TCCState *s, void *ctx,
1551 void (*symbol_cb)(void *ctx, const char *name, const void *val));
1552 ST_FUNC int set_global_sym(TCCState *s1, const char *name, Section *sec, addr_t offs);
1553
1554 /* Browse each elem of type <type> in section <sec> starting at elem <startoff>
1555 using variable <elem> */
1556 #define for_each_elem(sec, startoff, elem, type) \
1557 for (elem = (type *) sec->data + startoff; \
1558 elem < (type *) (sec->data + sec->data_offset); elem++)
1559
1560 #ifndef ELF_OBJ_ONLY
1561 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1562 ST_FUNC int tcc_load_ldscript(TCCState *s1, int fd);
1563 #endif
1564 #ifndef TCC_TARGET_PE
1565 ST_FUNC void tcc_add_runtime(TCCState *s1);
1566 #endif
1567
1568 /* ------------ xxx-link.c ------------ */
1569
1570 #if !defined ELF_OBJ_ONLY || defined TCC_TARGET_MACHO
1571 ST_FUNC int code_reloc (int reloc_type);
1572 ST_FUNC int gotplt_entry_type (int reloc_type);
1573 /* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1574 that unknown relocation don't create a GOT or PLT entry */
1575 enum gotplt_entry {
1576 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1577 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1578 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1579 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1580 };
1581 #define NEED_RELOC_TYPE
1582
1583 #if !defined TCC_TARGET_MACHO || defined TCC_IS_NATIVE
1584 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1585 ST_FUNC void relocate_plt(TCCState *s1);
1586 ST_FUNC void build_got_entries(TCCState *s1, int got_sym); /* in tccelf.c */
1587 #define NEED_BUILD_GOT
1588
1589 #endif
1590 #endif
1591
1592 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
1593
1594 /* ------------ xxx-gen.c ------------ */
1595 ST_DATA const char * const target_machine_defs;
1596 ST_DATA const int reg_classes[NB_REGS];
1597
1598 ST_FUNC void gsym_addr(int t, int a);
1599 ST_FUNC void gsym(int t);
1600 ST_FUNC void load(int r, SValue *sv);
1601 ST_FUNC void store(int r, SValue *v);
1602 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1603 ST_FUNC void gfunc_call(int nb_args);
1604 ST_FUNC void gfunc_prolog(Sym *func_sym);
1605 ST_FUNC void gfunc_epilog(void);
1606 ST_FUNC void gen_fill_nops(int);
1607 ST_FUNC int gjmp(int t);
1608 ST_FUNC void gjmp_addr(int a);
1609 ST_FUNC int gjmp_cond(int op, int t);
1610 ST_FUNC int gjmp_append(int n, int t);
1611 ST_FUNC void gen_opi(int op);
1612 ST_FUNC void gen_opf(int op);
1613 ST_FUNC void gen_cvt_ftoi(int t);
1614 ST_FUNC void gen_cvt_itof(int t);
1615 ST_FUNC void gen_cvt_ftof(int t);
1616 ST_FUNC void ggoto(void);
1617 #ifndef TCC_TARGET_C67
1618 ST_FUNC void o(unsigned int c);
1619 #endif
1620 ST_FUNC void gen_vla_sp_save(int addr);
1621 ST_FUNC void gen_vla_sp_restore(int addr);
1622 ST_FUNC void gen_vla_alloc(CType *type, int align);
1623
1624 static inline uint16_t read16le(unsigned char *p) {
1625 return p[0] | (uint16_t)p[1] << 8;
1626 }
1627 static inline void write16le(unsigned char *p, uint16_t x) {
1628 p[0] = x & 255; p[1] = x >> 8 & 255;
1629 }
1630 static inline uint32_t read32le(unsigned char *p) {
1631 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1632 }
1633 static inline void write32le(unsigned char *p, uint32_t x) {
1634 write16le(p, x); write16le(p + 2, x >> 16);
1635 }
1636 static inline void add32le(unsigned char *p, int32_t x) {
1637 write32le(p, read32le(p) + x);
1638 }
1639 static inline uint64_t read64le(unsigned char *p) {
1640 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1641 }
1642 static inline void write64le(unsigned char *p, uint64_t x) {
1643 write32le(p, x); write32le(p + 4, x >> 32);
1644 }
1645 static inline void add64le(unsigned char *p, int64_t x) {
1646 write64le(p, read64le(p) + x);
1647 }
1648
1649 /* ------------ i386-gen.c ------------ */
1650 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
1651 ST_FUNC void g(int c);
1652 ST_FUNC void gen_le16(int c);
1653 ST_FUNC void gen_le32(int c);
1654 #endif
1655 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1656 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1657 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1658 ST_FUNC void gen_cvt_csti(int t);
1659 ST_FUNC void gen_increment_tcov (SValue *sv);
1660 #endif
1661
1662 /* ------------ x86_64-gen.c ------------ */
1663 #ifdef TCC_TARGET_X86_64
1664 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1665 ST_FUNC void gen_opl(int op);
1666 #ifdef TCC_TARGET_PE
1667 ST_FUNC void gen_vla_result(int addr);
1668 #endif
1669 ST_FUNC void gen_cvt_sxtw(void);
1670 ST_FUNC void gen_cvt_csti(int t);
1671 #endif
1672
1673 /* ------------ arm-gen.c ------------ */
1674 #ifdef TCC_TARGET_ARM
1675 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1676 PUB_FUNC const char *default_elfinterp(struct TCCState *s);
1677 #endif
1678 ST_FUNC void arm_init(struct TCCState *s);
1679 ST_FUNC void gen_increment_tcov (SValue *sv);
1680 #endif
1681
1682 /* ------------ arm64-gen.c ------------ */
1683 #ifdef TCC_TARGET_ARM64
1684 ST_FUNC void gen_opl(int op);
1685 ST_FUNC void gfunc_return(CType *func_type);
1686 ST_FUNC void gen_va_start(void);
1687 ST_FUNC void gen_va_arg(CType *t);
1688 ST_FUNC void gen_clear_cache(void);
1689 ST_FUNC void gen_cvt_sxtw(void);
1690 ST_FUNC void gen_cvt_csti(int t);
1691 ST_FUNC void gen_increment_tcov (SValue *sv);
1692 #endif
1693
1694 /* ------------ riscv64-gen.c ------------ */
1695 #ifdef TCC_TARGET_RISCV64
1696 ST_FUNC void gen_opl(int op);
1697 //ST_FUNC void gfunc_return(CType *func_type);
1698 ST_FUNC void gen_va_start(void);
1699 ST_FUNC void arch_transfer_ret_regs(int);
1700 ST_FUNC void gen_cvt_sxtw(void);
1701 ST_FUNC void gen_increment_tcov (SValue *sv);
1702 #endif
1703
1704 /* ------------ c67-gen.c ------------ */
1705 #ifdef TCC_TARGET_C67
1706 #endif
1707
1708 /* ------------ tcccoff.c ------------ */
1709 #ifdef TCC_TARGET_COFF
1710 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1711 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1712 #endif
1713
1714 /* ------------ tccasm.c ------------ */
1715 ST_FUNC void asm_instr(void);
1716 ST_FUNC void asm_global_instr(void);
1717 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1718 #ifdef CONFIG_TCC_ASM
1719 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1720 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1721 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1722 ST_FUNC int asm_int_expr(TCCState *s1);
1723 /* ------------ i386-asm.c ------------ */
1724 ST_FUNC void gen_expr32(ExprValue *pe);
1725 #ifdef TCC_TARGET_X86_64
1726 ST_FUNC void gen_expr64(ExprValue *pe);
1727 #endif
1728 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1729 ST_FUNC int asm_parse_regvar(int t);
1730 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1731 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1732 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1733 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1734 #endif
1735
1736 /* ------------ tccpe.c -------------- */
1737 #ifdef TCC_TARGET_PE
1738 ST_FUNC int pe_load_file(struct TCCState *s1, int fd, const char *filename);
1739 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1740 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1741 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1742 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1743 #endif
1744 #ifdef TCC_TARGET_X86_64
1745 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1746 #endif
1747 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1748 /* symbol properties stored in Elf32_Sym->st_other */
1749 # define ST_PE_EXPORT 0x10
1750 # define ST_PE_IMPORT 0x20
1751 # define ST_PE_STDCALL 0x40
1752 #endif
1753 #define ST_ASM_SET 0x04
1754
1755 /* ------------ tccmacho.c ----------------- */
1756 #ifdef TCC_TARGET_MACHO
1757 ST_FUNC int macho_output_file(TCCState * s1, const char *filename);
1758 ST_FUNC int macho_load_dll(TCCState *s1, int fd, const char *filename, int lev);
1759 ST_FUNC int macho_load_tbd(TCCState *s1, int fd, const char *filename, int lev);
1760 #ifdef TCC_IS_NATIVE
1761 ST_FUNC void tcc_add_macos_sdkpath(TCCState* s);
1762 ST_FUNC const char* macho_tbd_soname(const char* filename);
1763 #endif
1764 #endif
1765 /* ------------ tccrun.c ----------------- */
1766 #ifdef TCC_IS_NATIVE
1767 #ifdef CONFIG_TCC_STATIC
1768 #define RTLD_LAZY 0x001
1769 #define RTLD_NOW 0x002
1770 #define RTLD_GLOBAL 0x100
1771 #define RTLD_DEFAULT NULL
1772 /* dummy function for profiling */
1773 ST_FUNC void *dlopen(const char *filename, int flag);
1774 ST_FUNC void dlclose(void *p);
1775 ST_FUNC const char *dlerror(void);
1776 ST_FUNC void *dlsym(void *handle, const char *symbol);
1777 #endif
1778 ST_FUNC void tcc_run_free(TCCState *s1);
1779 #endif
1780
1781 /* ------------ tcctools.c ----------------- */
1782 #if 0 /* included in tcc.c */
1783 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1784 #ifdef TCC_TARGET_PE
1785 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1786 #endif
1787 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1788 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1789 #endif
1790
1791 /* ------------ tccdbg.c ------------ */
1792
1793 ST_FUNC void tcc_debug_new(TCCState *s);
1794
1795 ST_FUNC void tcc_debug_start(TCCState *s1);
1796 ST_FUNC void tcc_debug_end(TCCState *s1);
1797 ST_FUNC void tcc_debug_bincl(TCCState *s1);
1798 ST_FUNC void tcc_debug_eincl(TCCState *s1);
1799 ST_FUNC void tcc_debug_putfile(TCCState *s1, const char *filename);
1800
1801 ST_FUNC void tcc_debug_line(TCCState *s1);
1802 ST_FUNC void tcc_add_debug_info(TCCState *s1, int param, Sym *s, Sym *e);
1803 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1804 ST_FUNC void tcc_debug_prolog_epilog(TCCState *s1, int value);
1805 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1806 ST_FUNC void tcc_debug_extern_sym(TCCState *s1, Sym *sym, int sh_num, int sym_bind, int sym_type);
1807 ST_FUNC void tcc_debug_typedef(TCCState *s1, Sym *sym);
1808 ST_FUNC void tcc_debug_stabn(TCCState *s1, int type, int value);
1809 ST_FUNC void tcc_debug_fix_anon(TCCState *s1, CType *t);
1810
1811 ST_FUNC void tcc_tcov_start(TCCState *s1);
1812 ST_FUNC void tcc_tcov_end(TCCState *s1);
1813 ST_FUNC void tcc_tcov_check_line(TCCState *s1, int start);
1814 ST_FUNC void tcc_tcov_block_end(TCCState *s1, int line);
1815 ST_FUNC void tcc_tcov_block_begin(TCCState *s1);
1816 ST_FUNC void tcc_tcov_reset_ind(TCCState *s1);
1817
1818 #define stab_section s1->stab_section
1819 #define stabstr_section stab_section->link
1820 #define tcov_section s1->tcov_section
1821 #define dwarf_info_section s1->dwarf_info_section
1822 #define dwarf_abbrev_section s1->dwarf_abbrev_section
1823 #define dwarf_line_section s1->dwarf_line_section
1824 #define dwarf_aranges_section s1->dwarf_aranges_section
1825 #define dwarf_str_section s1->dwarf_str_section
1826 #define dwarf_line_str_section s1->dwarf_line_str_section
1827
1828 /* default dwarf version for "-g". use 0 to emit stab debug infos */
1829 #ifndef DWARF_VERSION
1830 # define DWARF_VERSION 0
1831 #endif
1832
1833 /* default dwarf version for "-gdwarf" */
1834 #ifdef TCC_TARGET_MACHO
1835 # define DEFAULT_DWARF_VERSION 2
1836 #else
1837 # define DEFAULT_DWARF_VERSION 5
1838 #endif
1839
1840 #if defined TCC_TARGET_PE
1841 # define R_DATA_32DW 'Z' /* fake code to avoid DLL relocs */
1842 #elif defined TCC_TARGET_X86_64
1843 # define R_DATA_32DW R_X86_64_32
1844 #else
1845 # define R_DATA_32DW R_DATA_32
1846 #endif
1847
1848 /********************************************************/
1849 #if CONFIG_TCC_SEMLOCK
1850 #if defined _WIN32
1851 typedef struct { int init; CRITICAL_SECTION cr; } TCCSem;
1852 #elif defined __APPLE__
1853 #include <dispatch/dispatch.h>
1854 typedef struct { int init; dispatch_semaphore_t sem; } TCCSem;
1855 #else
1856 #include <semaphore.h>
1857 typedef struct { int init; sem_t sem; } TCCSem;
1858 #endif
1859 ST_FUNC void wait_sem(TCCSem *p);
1860 ST_FUNC void post_sem(TCCSem *p);
1861 #define TCC_SEM(s) TCCSem s
1862 #define WAIT_SEM wait_sem
1863 #define POST_SEM post_sem
1864 #else
1865 #define TCC_SEM(s)
1866 #define WAIT_SEM(p)
1867 #define POST_SEM(p)
1868 #endif
1869
1870 /********************************************************/
1871 #undef ST_DATA
1872 #if ONE_SOURCE
1873 #define ST_DATA static
1874 #else
1875 #define ST_DATA
1876 #endif
1877 /********************************************************/
1878
1879 #define text_section TCC_STATE_VAR(text_section)
1880 #define data_section TCC_STATE_VAR(data_section)
1881 #define rodata_section TCC_STATE_VAR(rodata_section)
1882 #define bss_section TCC_STATE_VAR(bss_section)
1883 #define common_section TCC_STATE_VAR(common_section)
1884 #define cur_text_section TCC_STATE_VAR(cur_text_section)
1885 #define bounds_section TCC_STATE_VAR(bounds_section)
1886 #define lbounds_section TCC_STATE_VAR(lbounds_section)
1887 #define symtab_section TCC_STATE_VAR(symtab_section)
1888 #define gnu_ext TCC_STATE_VAR(gnu_ext)
1889 #define tcc_error_noabort TCC_SET_STATE(_tcc_error_noabort)
1890 #define tcc_error TCC_SET_STATE(_tcc_error)
1891 #define tcc_warning TCC_SET_STATE(_tcc_warning)
1892
1893 #define total_idents TCC_STATE_VAR(total_idents)
1894 #define total_lines TCC_STATE_VAR(total_lines)
1895 #define total_bytes TCC_STATE_VAR(total_bytes)
1896
1897 PUB_FUNC void tcc_enter_state(TCCState *s1);
1898 PUB_FUNC void tcc_exit_state(TCCState *s1);
1899
1900 /* conditional warning depending on switch */
1901 #define tcc_warning_c(sw) TCC_SET_STATE((\
1902 tcc_state->warn_num = offsetof(TCCState, sw) \
1903 - offsetof(TCCState, warn_none), _tcc_warning))
1904
1905 /********************************************************/
1906 #endif /* _TCC_H */
1907
1908 #undef TCC_STATE_VAR
1909 #undef TCC_SET_STATE
1910
1911 #ifdef USING_GLOBALS
1912 # define TCC_STATE_VAR(sym) tcc_state->sym
1913 # define TCC_SET_STATE(fn) fn
1914 # undef USING_GLOBALS
1915 #else
1916 # define TCC_STATE_VAR(sym) s1->sym
1917 # define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn)
1918 #endif
Tiny C Compiler main repository