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tccgen.c: generic char/short promotion for function return values
[tinycc.git] / tcc.h
blob038a12342da8f917f0200b9517dda36196ca7eaa
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef _TCC_H
22 #define _TCC_H
23
24 #define _GNU_SOURCE
25 #include "config.h"
26
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <stdarg.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <math.h>
33 #include <fcntl.h>
34 #include <setjmp.h>
35 #include <time.h>
36
37 #ifndef _WIN32
38 # include <unistd.h>
39 # include <sys/time.h>
40 # ifndef CONFIG_TCC_STATIC
41 # include <dlfcn.h>
42 # endif
43 /* XXX: need to define this to use them in non ISOC99 context */
44 extern float strtof (const char *__nptr, char **__endptr);
45 extern long double strtold (const char *__nptr, char **__endptr);
46 #endif
47
48 #ifdef _WIN32
49 # include <windows.h>
50 # include <io.h> /* open, close etc. */
51 # include <direct.h> /* getcwd */
52 # ifdef __GNUC__
53 # include <stdint.h>
54 # endif
55 # define inline __inline
56 # define snprintf _snprintf
57 # define vsnprintf _vsnprintf
58 # ifndef __GNUC__
59 # define strtold (long double)strtod
60 # define strtof (float)strtod
61 # define strtoll _strtoi64
62 # define strtoull _strtoui64
63 # endif
64 # ifdef LIBTCC_AS_DLL
65 # define LIBTCCAPI __declspec(dllexport)
66 # define PUB_FUNC LIBTCCAPI
67 # endif
68 # define inp next_inp /* inp is an intrinsic on msvc/mingw */
69 # ifdef _MSC_VER
70 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
71 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
72 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
73 # pragma warning (disable : 4018) // signed/unsigned mismatch
74 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
75 # define ssize_t intptr_t
76 # ifdef _X86_
77 # define __i386__ 1
78 # endif
79 # ifdef _AMD64_
80 # define __x86_64__ 1
81 # endif
82 # endif
83 # undef CONFIG_TCC_STATIC
84 #endif
85
86 #ifndef O_BINARY
87 # define O_BINARY 0
88 #endif
89
90 #ifndef offsetof
91 #define offsetof(type, field) ((size_t) &((type *)0)->field)
92 #endif
93
94 #ifndef countof
95 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
96 #endif
97
98 #ifdef _MSC_VER
99 # define NORETURN __declspec(noreturn)
100 # define ALIGNED(x) __declspec(align(x))
101 #else
102 # define NORETURN __attribute__((noreturn))
103 # define ALIGNED(x) __attribute__((aligned(x)))
104 #endif
105
106 /* gnu headers use to #define __attribute__ to empty for non-gcc compilers */
107 #ifdef __TINYC__
108 # undef __attribute__
109 #endif
110
111 #ifdef _WIN32
112 # define IS_DIRSEP(c) (c == '/' || c == '\\')
113 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
114 # define PATHCMP stricmp
115 # define PATHSEP ";"
116 #else
117 # define IS_DIRSEP(c) (c == '/')
118 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
119 # define PATHCMP strcmp
120 # define PATHSEP ":"
121 #endif
122
123 /* -------------------------------------------- */
124
125 /* parser debug */
126 /* #define PARSE_DEBUG */
127 /* preprocessor debug */
128 /* #define PP_DEBUG */
129 /* include file debug */
130 /* #define INC_DEBUG */
131 /* memory leak debug (only for single threaded usage) */
132 /* #define MEM_DEBUG */
133 /* assembler debug */
134 /* #define ASM_DEBUG */
135
136 /* target selection */
137 /* #define TCC_TARGET_I386 *//* i386 code generator */
138 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
139 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
140 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
141 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
142 /* #define TCC_TARGET_RISCV64 *//* risc-v code generator */
143
144 /* default target is I386 */
145 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
146 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
147 !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_RISCV64)
148 # if defined __x86_64__
149 # define TCC_TARGET_X86_64
150 # elif defined __arm__
151 # define TCC_TARGET_ARM
152 # define TCC_ARM_EABI
153 # define TCC_ARM_HARDFLOAT
154 # elif defined __aarch64__
155 # define TCC_TARGET_ARM64
156 # else
157 # define TCC_TARGET_I386
158 # endif
159 # ifdef _WIN32
160 # define TCC_TARGET_PE 1
161 # endif
162 #endif
163
164 /* only native compiler supports -run */
165 #if defined _WIN32 == defined TCC_TARGET_PE
166 # if defined __i386__ && defined TCC_TARGET_I386
167 # define TCC_IS_NATIVE
168 # elif defined __x86_64__ && defined TCC_TARGET_X86_64
169 # define TCC_IS_NATIVE
170 # elif defined __arm__ && defined TCC_TARGET_ARM
171 # define TCC_IS_NATIVE
172 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
173 # define TCC_IS_NATIVE
174 # elif defined __riscv && defined __LP64__ && defined TCC_TARGET_RISCV64
175 # define TCC_IS_NATIVE
176 # endif
177 #endif
178
179 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
180 # define CONFIG_TCC_BACKTRACE
181 # if (defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64) \
182 && !defined TCC_UCLIBC && !defined TCC_MUSL
183 # define CONFIG_TCC_BCHECK /* enable bound checking code */
184 # endif
185 #endif
186
187 /* ------------ path configuration ------------ */
188
189 #ifndef CONFIG_SYSROOT
190 # define CONFIG_SYSROOT ""
191 #endif
192 #ifndef CONFIG_TCCDIR
193 # define CONFIG_TCCDIR "/usr/local/lib/tcc"
194 #endif
195 #ifndef CONFIG_LDDIR
196 # define CONFIG_LDDIR "lib"
197 #endif
198 #ifdef CONFIG_TRIPLET
199 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
200 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
201 #else
202 # define USE_TRIPLET(s) s
203 # define ALSO_TRIPLET(s) s
204 #endif
205
206 /* path to find crt1.o, crti.o and crtn.o */
207 #ifndef CONFIG_TCC_CRTPREFIX
208 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
209 #endif
210
211 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
212
213 /* system include paths */
214 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
215 # ifdef TCC_TARGET_PE
216 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include"PATHSEP"{B}/include/winapi"
217 # else
218 # define CONFIG_TCC_SYSINCLUDEPATHS \
219 "{B}/include" \
220 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
221 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
222 # endif
223 #endif
224
225 /* library search paths */
226 #ifndef CONFIG_TCC_LIBPATHS
227 # ifdef TCC_TARGET_PE
228 # define CONFIG_TCC_LIBPATHS "{B}/lib"
229 # else
230 # define CONFIG_TCC_LIBPATHS \
231 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
232 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
233 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
234 # endif
235 #endif
236
237 /* name of ELF interpreter */
238 #ifndef CONFIG_TCC_ELFINTERP
239 # if defined __FreeBSD__
240 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
241 # elif defined __FreeBSD_kernel__
242 # if defined(TCC_TARGET_X86_64)
243 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
244 # else
245 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
246 # endif
247 # elif defined __DragonFly__
248 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
249 # elif defined __NetBSD__
250 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
251 # elif defined __GNU__
252 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
253 # elif defined(TCC_TARGET_PE)
254 # define CONFIG_TCC_ELFINTERP "-"
255 # elif defined(TCC_UCLIBC)
256 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
257 # elif defined TCC_TARGET_ARM64
258 # if defined(TCC_MUSL)
259 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
260 # else
261 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
262 # endif
263 # elif defined(TCC_TARGET_X86_64)
264 # if defined(TCC_MUSL)
265 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
266 # else
267 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
268 # endif
269 # elif defined(TCC_TARGET_RISCV64)
270 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-riscv64-lp64d.so.1"
271 # elif !defined(TCC_ARM_EABI)
272 # if defined(TCC_MUSL)
273 # if defined(TCC_TARGET_I386)
274 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-i386.so.1"
275 # else
276 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
277 # endif
278 # else
279 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
280 # endif
281 # endif
282 #endif
283
284 /* var elf_interp dans *-gen.c */
285 #ifdef CONFIG_TCC_ELFINTERP
286 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
287 #else
288 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
289 #endif
290
291 /* (target specific) libtcc1.a */
292 #ifndef TCC_LIBTCC1
293 # define TCC_LIBTCC1 "libtcc1.a"
294 #endif
295
296 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
297 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
298 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
299 #endif
300
301 /* -------------------------------------------- */
302
303 #include "libtcc.h"
304 #include "elf.h"
305 #include "stab.h"
306
307 /* -------------------------------------------- */
308
309 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
310 # define PUB_FUNC
311 #endif
312
313 #ifndef ONE_SOURCE
314 # define ONE_SOURCE 1
315 #endif
316
317 /* support using libtcc from threads */
318 #define CONFIG_TCC_SEMLOCK
319
320 #if ONE_SOURCE
321 #define ST_INLN static inline
322 #define ST_FUNC static
323 #define ST_DATA static
324 #else
325 #define ST_INLN
326 #define ST_FUNC
327 #define ST_DATA extern
328 #endif
329
330 #ifdef TCC_PROFILE /* profile all functions */
331 # define static
332 #endif
333
334 /* -------------------------------------------- */
335 /* include the target specific definitions */
336
337 #define TARGET_DEFS_ONLY
338 #ifdef TCC_TARGET_I386
339 # include "i386-gen.c"
340 # include "i386-link.c"
341 #elif defined TCC_TARGET_X86_64
342 # include "x86_64-gen.c"
343 # include "x86_64-link.c"
344 #elif defined TCC_TARGET_ARM
345 # include "arm-gen.c"
346 # include "arm-link.c"
347 # include "arm-asm.c"
348 #elif defined TCC_TARGET_ARM64
349 # include "arm64-gen.c"
350 # include "arm64-link.c"
351 #elif defined TCC_TARGET_C67
352 # define TCC_TARGET_COFF
353 # include "coff.h"
354 # include "c67-gen.c"
355 # include "c67-link.c"
356 #elif defined(TCC_TARGET_RISCV64)
357 # include "riscv64-gen.c"
358 # include "riscv64-link.c"
359 #else
360 #error unknown target
361 #endif
362 #undef TARGET_DEFS_ONLY
363
364 /* -------------------------------------------- */
365
366 #if PTR_SIZE == 8
367 # define ELFCLASSW ELFCLASS64
368 # define ElfW(type) Elf##64##_##type
369 # define ELFW(type) ELF##64##_##type
370 # define ElfW_Rel ElfW(Rela)
371 # define SHT_RELX SHT_RELA
372 # define REL_SECTION_FMT ".rela%s"
373 #else
374 # define ELFCLASSW ELFCLASS32
375 # define ElfW(type) Elf##32##_##type
376 # define ELFW(type) ELF##32##_##type
377 # define ElfW_Rel ElfW(Rel)
378 # define SHT_RELX SHT_REL
379 # define REL_SECTION_FMT ".rel%s"
380 #endif
381 /* target address type */
382 #define addr_t ElfW(Addr)
383 #define ElfSym ElfW(Sym)
384
385 #if PTR_SIZE == 8 && !defined TCC_TARGET_PE
386 # define LONG_SIZE 8
387 #else
388 # define LONG_SIZE 4
389 #endif
390
391 /* -------------------------------------------- */
392
393 #define INCLUDE_STACK_SIZE 32
394 #define IFDEF_STACK_SIZE 64
395 #define VSTACK_SIZE 256
396 #define STRING_MAX_SIZE 1024
397 #define TOKSTR_MAX_SIZE 256
398 #define PACK_STACK_SIZE 8
399
400 #define TOK_HASH_SIZE 16384 /* must be a power of two */
401 #define TOK_ALLOC_INCR 512 /* must be a power of two */
402 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
403
404 /* token symbol management */
405 typedef struct TokenSym {
406 struct TokenSym *hash_next;
407 struct Sym *sym_define; /* direct pointer to define */
408 struct Sym *sym_label; /* direct pointer to label */
409 struct Sym *sym_struct; /* direct pointer to structure */
410 struct Sym *sym_identifier; /* direct pointer to identifier */
411 int tok; /* token number */
412 int len;
413 char str[1];
414 } TokenSym;
415
416 #ifdef TCC_TARGET_PE
417 typedef unsigned short nwchar_t;
418 #else
419 typedef int nwchar_t;
420 #endif
421
422 typedef struct CString {
423 int size; /* size in bytes */
424 void *data; /* either 'char *' or 'nwchar_t *' */
425 int size_allocated;
426 } CString;
427
428 /* type definition */
429 typedef struct CType {
430 int t;
431 struct Sym *ref;
432 } CType;
433
434 /* constant value */
435 typedef union CValue {
436 long double ld;
437 double d;
438 float f;
439 uint64_t i;
440 struct {
441 int size;
442 const void *data;
443 } str;
444 int tab[LDOUBLE_SIZE/4];
445 } CValue;
446
447 /* value on stack */
448 typedef struct SValue {
449 CType type; /* type */
450 unsigned short r; /* register + flags */
451 unsigned short r2; /* second register, used for 'long long'
452 type. If not used, set to VT_CONST */
453 union {
454 struct { int jtrue, jfalse; }; /* forward jmps */
455 CValue c; /* constant, if VT_CONST */
456 };
457 union {
458 struct { unsigned short cmp_op, cmp_r; }; /* VT_CMP operation */
459 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if */
460 }; /* result of unary() for an identifier. */
461
462 } SValue;
463
464 /* symbol attributes */
465 struct SymAttr {
466 unsigned short
467 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
468 packed : 1,
469 weak : 1,
470 visibility : 2,
471 dllexport : 1,
472 nodecorate : 1,
473 dllimport : 1,
474 constructor : 1,
475 destructor : 1,
476 unused : 2;
477 };
478
479 /* function attributes or temporary attributes for parsing */
480 struct FuncAttr {
481 unsigned
482 func_call : 3, /* calling convention (0..5), see below */
483 func_type : 2, /* FUNC_OLD/NEW/ELLIPSIS */
484 func_noreturn : 1, /* attribute((noreturn)) */
485 xxxx : 2,
486 func_args : 8; /* PE __stdcall args */
487 };
488
489 /* symbol management */
490 typedef struct Sym {
491 int v; /* symbol token */
492 unsigned short r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
493 struct SymAttr a; /* symbol attributes */
494 union {
495 struct {
496 int c; /* associated number or Elf symbol index */
497 union {
498 int sym_scope; /* scope level for locals */
499 int jnext; /* next jump label */
500 struct FuncAttr f; /* function attributes */
501 int auxtype; /* bitfield access type */
502 };
503 };
504 long long enum_val; /* enum constant if IS_ENUM_VAL */
505 int *d; /* define token stream */
506 struct Sym *ncl; /* next cleanup */
507 };
508 CType type; /* associated type */
509 union {
510 struct Sym *next; /* next related symbol (for fields and anoms) */
511 struct Sym *cleanupstate; /* in defined labels */
512 int asm_label; /* associated asm label */
513 };
514 struct Sym *prev; /* prev symbol in stack */
515 struct Sym *prev_tok; /* previous symbol for this token */
516 } Sym;
517
518 /* section definition */
519 typedef struct Section {
520 unsigned long data_offset; /* current data offset */
521 unsigned char *data; /* section data */
522 unsigned long data_allocated; /* used for realloc() handling */
523 TCCState *s1;
524 int sh_name; /* elf section name (only used during output) */
525 int sh_num; /* elf section number */
526 int sh_type; /* elf section type */
527 int sh_flags; /* elf section flags */
528 int sh_info; /* elf section info */
529 int sh_addralign; /* elf section alignment */
530 int sh_entsize; /* elf entry size */
531 unsigned long sh_size; /* section size (only used during output) */
532 addr_t sh_addr; /* address at which the section is relocated */
533 unsigned long sh_offset; /* file offset */
534 int nb_hashed_syms; /* used to resize the hash table */
535 struct Section *link; /* link to another section */
536 struct Section *reloc; /* corresponding section for relocation, if any */
537 struct Section *hash; /* hash table for symbols */
538 struct Section *prev; /* previous section on section stack */
539 char name[1]; /* section name */
540 } Section;
541
542 typedef struct DLLReference {
543 int level;
544 void *handle;
545 char name[1];
546 } DLLReference;
547
548 /* -------------------------------------------------- */
549
550 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
551 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
552 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
553
554 /* stored in 'Sym->f.func_type' field */
555 #define FUNC_NEW 1 /* ansi function prototype */
556 #define FUNC_OLD 2 /* old function prototype */
557 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
558
559 /* stored in 'Sym->f.func_call' field */
560 #define FUNC_CDECL 0 /* standard c call */
561 #define FUNC_STDCALL 1 /* pascal c call */
562 #define FUNC_FASTCALL1 2 /* first param in %eax */
563 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
564 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
565 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
566
567 /* field 'Sym.t' for macros */
568 #define MACRO_OBJ 0 /* object like macro */
569 #define MACRO_FUNC 1 /* function like macro */
570
571 /* field 'Sym.r' for C labels */
572 #define LABEL_DEFINED 0 /* label is defined */
573 #define LABEL_FORWARD 1 /* label is forward defined */
574 #define LABEL_DECLARED 2 /* label is declared but never used */
575
576 /* type_decl() types */
577 #define TYPE_ABSTRACT 1 /* type without variable */
578 #define TYPE_DIRECT 2 /* type with variable */
579
580 #define IO_BUF_SIZE 8192
581
582 typedef struct BufferedFile {
583 uint8_t *buf_ptr;
584 uint8_t *buf_end;
585 int fd;
586 struct BufferedFile *prev;
587 int line_num; /* current line number - here to simplify code */
588 int line_ref; /* tcc -E: last printed line */
589 int ifndef_macro; /* #ifndef macro / #endif search */
590 int ifndef_macro_saved; /* saved ifndef_macro */
591 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
592 int include_next_index; /* next search path */
593 char filename[1024]; /* filename */
594 char *true_filename; /* filename not modified by # line directive */
595 unsigned char unget[4];
596 unsigned char buffer[1]; /* extra size for CH_EOB char */
597 } BufferedFile;
598
599 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
600 #define CH_EOF (-1) /* end of file */
601
602 /* used to record tokens */
603 typedef struct TokenString {
604 int *str;
605 int len;
606 int lastlen;
607 int allocated_len;
608 int last_line_num;
609 int save_line_num;
610 /* used to chain token-strings with begin/end_macro() */
611 struct TokenString *prev;
612 const int *prev_ptr;
613 char alloc;
614 } TokenString;
615
616 /* GNUC attribute definition */
617 typedef struct AttributeDef {
618 struct SymAttr a;
619 struct FuncAttr f;
620 struct Section *section;
621 Sym *cleanup_func;
622 int alias_target; /* token */
623 int asm_label; /* associated asm label */
624 char attr_mode; /* __attribute__((__mode__(...))) */
625 } AttributeDef;
626
627 /* inline functions */
628 typedef struct InlineFunc {
629 TokenString *func_str;
630 Sym *sym;
631 char filename[1];
632 } InlineFunc;
633
634 /* include file cache, used to find files faster and also to eliminate
635 inclusion if the include file is protected by #ifndef ... #endif */
636 typedef struct CachedInclude {
637 int ifndef_macro;
638 int once;
639 int hash_next; /* -1 if none */
640 char filename[1]; /* path specified in #include */
641 } CachedInclude;
642
643 #define CACHED_INCLUDES_HASH_SIZE 32
644
645 #ifdef CONFIG_TCC_ASM
646 typedef struct ExprValue {
647 uint64_t v;
648 Sym *sym;
649 int pcrel;
650 } ExprValue;
651
652 #define MAX_ASM_OPERANDS 30
653 typedef struct ASMOperand {
654 int id; /* GCC 3 optional identifier (0 if number only supported */
655 char *constraint;
656 char asm_str[16]; /* computed asm string for operand */
657 SValue *vt; /* C value of the expression */
658 int ref_index; /* if >= 0, gives reference to a output constraint */
659 int input_index; /* if >= 0, gives reference to an input constraint */
660 int priority; /* priority, used to assign registers */
661 int reg; /* if >= 0, register number used for this operand */
662 int is_llong; /* true if double register value */
663 int is_memory; /* true if memory operand */
664 int is_rw; /* for '+' modifier */
665 } ASMOperand;
666 #endif
667
668 /* extra symbol attributes (not in symbol table) */
669 struct sym_attr {
670 unsigned got_offset;
671 unsigned plt_offset;
672 int plt_sym;
673 int dyn_index;
674 #ifdef TCC_TARGET_ARM
675 unsigned char plt_thumb_stub:1;
676 #endif
677 };
678
679 struct TCCState {
680 unsigned char verbose; /* if true, display some information during compilation */
681 unsigned char nostdinc; /* if true, no standard headers are added */
682 unsigned char nostdlib; /* if true, no standard libraries are added */
683 unsigned char nocommon; /* if true, do not use common symbols for .bss data */
684 unsigned char static_link; /* if true, static linking is performed */
685 unsigned char rdynamic; /* if true, all symbols are exported */
686 unsigned char symbolic; /* if true, resolve symbols in the current module first */
687 unsigned char filetype; /* file type for compilation (NONE,C,ASM) */
688 unsigned int cversion; /* supported C ISO version, 199901 (the default), 201112, ... */
689
690 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
691 char *soname; /* as specified on the command line (-soname) */
692 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
693 unsigned char enable_new_dtags; /* ditto, (-Wl,--enable-new-dtags) */
694
695 /* output type, see TCC_OUTPUT_XXX */
696 int output_type;
697 /* output format, see TCC_OUTPUT_FORMAT_xxx */
698 int output_format;
699
700 /* C language options */
701 unsigned char char_is_unsigned;
702 unsigned char leading_underscore;
703 unsigned char ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
704 unsigned char dollars_in_identifiers; /* allows '$' char in identifiers */
705 unsigned char ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
706
707 /* warning switches */
708 unsigned char warn_write_strings;
709 unsigned char warn_unsupported;
710 unsigned char warn_error;
711 unsigned char warn_none;
712 unsigned char warn_implicit_function_declaration;
713 unsigned char warn_gcc_compat;
714
715 /* compile with debug symbol (and use them if error during execution) */
716 unsigned char do_debug;
717 #ifdef CONFIG_TCC_BCHECK
718 /* compile with built-in memory and bounds checker */
719 unsigned char do_bounds_check;
720 #endif
721 #ifdef TCC_TARGET_ARM
722 enum float_abi float_abi; /* float ABI of the generated code*/
723 #endif
724 int run_test; /* nth test to run with -dt -run */
725
726 addr_t text_addr; /* address of text section */
727 unsigned char has_text_addr;
728
729 unsigned section_align; /* section alignment */
730
731 /* use GNU C extensions */
732 unsigned char gnu_ext;
733 /* use TinyCC extensions */
734 unsigned char tcc_ext;
735
736 char *init_symbol; /* symbols to call at load-time (not used currently) */
737 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
738
739 #ifdef TCC_TARGET_I386
740 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
741 #endif
742 #ifdef TCC_TARGET_X86_64
743 unsigned char nosse; /* For -mno-sse support. */
744 #endif
745
746 /* array of all loaded dlls (including those referenced by loaded dlls) */
747 DLLReference **loaded_dlls;
748 int nb_loaded_dlls;
749
750 /* include paths */
751 char **include_paths;
752 int nb_include_paths;
753
754 char **sysinclude_paths;
755 int nb_sysinclude_paths;
756
757 /* library paths */
758 char **library_paths;
759 int nb_library_paths;
760
761 /* crt?.o object path */
762 char **crt_paths;
763 int nb_crt_paths;
764
765 /* -D / -U options */
766 CString cmdline_defs;
767 /* -include options */
768 CString cmdline_incl;
769
770 /* error handling */
771 void *error_opaque;
772 void (*error_func)(void *opaque, const char *msg);
773 int error_set_jmp_enabled;
774 jmp_buf error_jmp_buf;
775 int nb_errors;
776
777 /* output file for preprocessing (-E) */
778 FILE *ppfp;
779 enum {
780 LINE_MACRO_OUTPUT_FORMAT_GCC,
781 LINE_MACRO_OUTPUT_FORMAT_NONE,
782 LINE_MACRO_OUTPUT_FORMAT_STD,
783 LINE_MACRO_OUTPUT_FORMAT_P10 = 11
784 } Pflag; /* -P switch */
785 char dflag; /* -dX value */
786
787 /* for -MD/-MF: collected dependencies for this compilation */
788 char **target_deps;
789 int nb_target_deps;
790
791 /* compilation */
792 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
793 BufferedFile **include_stack_ptr;
794
795 int ifdef_stack[IFDEF_STACK_SIZE];
796 int *ifdef_stack_ptr;
797
798 /* included files enclosed with #ifndef MACRO */
799 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
800 CachedInclude **cached_includes;
801 int nb_cached_includes;
802
803 /* #pragma pack stack */
804 int pack_stack[PACK_STACK_SIZE];
805 int *pack_stack_ptr;
806 char **pragma_libs;
807 int nb_pragma_libs;
808
809 /* inline functions are stored as token lists and compiled last
810 only if referenced */
811 struct InlineFunc **inline_fns;
812 int nb_inline_fns;
813
814 /* sections */
815 Section **sections;
816 int nb_sections; /* number of sections, including first dummy section */
817
818 Section **priv_sections;
819 int nb_priv_sections; /* number of private sections */
820
821 /* got & plt handling */
822 Section *got;
823 Section *plt;
824
825 /* predefined sections */
826 Section *text_section, *data_section, *bss_section;
827 Section *common_section;
828 Section *cur_text_section; /* current section where function code is generated */
829 #ifdef CONFIG_TCC_BCHECK
830 /* bound check related sections */
831 Section *bounds_section; /* contains global data bound description */
832 Section *lbounds_section; /* contains local data bound description */
833 #endif
834 /* symbol sections */
835 Section *symtab_section;
836 /* debug sections */
837 Section *stab_section;
838 /* Is there a new undefined sym since last new_undef_sym() */
839 int new_undef_sym;
840
841 /* temporary dynamic symbol sections (for dll loading) */
842 Section *dynsymtab_section;
843 /* exported dynamic symbol section */
844 Section *dynsym;
845 /* copy of the global symtab_section variable */
846 Section *symtab;
847 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
848 struct sym_attr *sym_attrs;
849 int nb_sym_attrs;
850 /* ptr to next reloc entry reused */
851 ElfW_Rel *qrel;
852 # define qrel s1->qrel
853
854 #ifdef TCC_TARGET_PE
855 /* PE info */
856 int pe_subsystem;
857 unsigned pe_characteristics;
858 unsigned pe_file_align;
859 unsigned pe_stack_size;
860 addr_t pe_imagebase;
861 # ifdef TCC_TARGET_X86_64
862 Section *uw_pdata;
863 int uw_sym;
864 unsigned uw_offs;
865 # endif
866 # define ELF_OBJ_ONLY
867 #endif
868
869 #ifndef ELF_OBJ_ONLY
870 int nb_sym_versions;
871 struct sym_version *sym_versions;
872 int nb_sym_to_version;
873 int *sym_to_version;
874 int dt_verneednum;
875 Section *versym_section;
876 Section *verneed_section;
877 #endif
878
879 #ifdef TCC_IS_NATIVE
880 const char *runtime_main;
881 void **runtime_mem;
882 int nb_runtime_mem;
883 #ifdef CONFIG_TCC_BACKTRACE
884 int rt_num_callers;
885 const char **rt_bound_error_msg;
886 void *rt_prog_main;
887 #endif
888 #endif
889
890 int fd, cc; /* used by tcc_load_ldscript */
891
892 /* benchmark info */
893 int total_idents;
894 int total_lines;
895 int total_bytes;
896
897 /* option -dnum (for general development purposes) */
898 int g_debug;
899
900 /* used by main and tcc_parse_args only */
901 struct filespec **files; /* files seen on command line */
902 int nb_files; /* number thereof */
903 int nb_libraries; /* number of libs thereof */
904 char *outfile; /* output filename */
905 unsigned char option_r; /* option -r */
906 unsigned char do_bench; /* option -bench */
907 int gen_deps; /* option -MD */
908 char *deps_outfile; /* option -MF */
909 unsigned char option_pthread; /* -pthread option */
910 int argc;
911 char **argv;
912 };
913
914 struct filespec {
915 char type;
916 char name[1];
917 };
918
919 /* The current value can be: */
920 #define VT_VALMASK 0x003f /* mask for value location, register or: */
921 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
922 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
923 #define VT_LOCAL 0x0032 /* offset on stack */
924 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
925 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
926 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
927 #define VT_LVAL 0x0100 /* var is an lvalue */
928 #define VT_SYM 0x0200 /* a symbol value is added */
929 #define VT_MUSTCAST 0x0C00 /* value must be casted to be correct (used for
930 char/short stored in integer registers) */
931 #define VT_MUSTBOUND 0x4000 /* bound checking must be done before
932 dereferencing value */
933 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
934 bounding function call point is in vc */
935 /* types */
936 #define VT_BTYPE 0x000f /* mask for basic type */
937 #define VT_VOID 0 /* void type */
938 #define VT_BYTE 1 /* signed byte type */
939 #define VT_SHORT 2 /* short type */
940 #define VT_INT 3 /* integer type */
941 #define VT_LLONG 4 /* 64 bit integer */
942 #define VT_PTR 5 /* pointer */
943 #define VT_FUNC 6 /* function type */
944 #define VT_STRUCT 7 /* struct/union definition */
945 #define VT_FLOAT 8 /* IEEE float */
946 #define VT_DOUBLE 9 /* IEEE double */
947 #define VT_LDOUBLE 10 /* IEEE long double */
948 #define VT_BOOL 11 /* ISOC99 boolean type */
949 #define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
950 #define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
951
952 #define VT_UNSIGNED 0x0010 /* unsigned type */
953 #define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
954 #define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
955 #define VT_BITFIELD 0x0080 /* bitfield modifier */
956 #define VT_CONSTANT 0x0100 /* const modifier */
957 #define VT_VOLATILE 0x0200 /* volatile modifier */
958 #define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
959 #define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
960
961 /* storage */
962 #define VT_EXTERN 0x00001000 /* extern definition */
963 #define VT_STATIC 0x00002000 /* static variable */
964 #define VT_TYPEDEF 0x00004000 /* typedef definition */
965 #define VT_INLINE 0x00008000 /* inline definition */
966 /* currently unused: 0x000[1248]0000 */
967
968 #define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
969 #define VT_STRUCT_MASK (((1U << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
970 #define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
971 #define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
972
973 #define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
974 #define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
975 #define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
976
977 #define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
978 #define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
979 #define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
980
981 /* type mask (except storage) */
982 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
983 #define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
984
985 /* symbol was created by tccasm.c first */
986 #define VT_ASM (VT_VOID | VT_UNSIGNED)
987 #define IS_ASM_SYM(sym) (((sym)->type.t & (VT_BTYPE | VT_ASM)) == VT_ASM)
988
989 /* general: set/get the pseudo-bitfield value for bit-mask M */
990 #define BFVAL(M,N) ((unsigned)((M) & ~((M) << 1)) * (N))
991 #define BFGET(X,M) (((X) & (M)) / BFVAL(M,1))
992 #define BFSET(X,M,N) ((X) = ((X) & ~(M)) | BFVAL(M,N))
993
994 /* token values */
995
996 /* warning: the following compare tokens depend on i386 asm code */
997 #define TOK_ULT 0x92
998 #define TOK_UGE 0x93
999 #define TOK_EQ 0x94
1000 #define TOK_NE 0x95
1001 #define TOK_ULE 0x96
1002 #define TOK_UGT 0x97
1003 #define TOK_Nset 0x98
1004 #define TOK_Nclear 0x99
1005 #define TOK_LT 0x9c
1006 #define TOK_GE 0x9d
1007 #define TOK_LE 0x9e
1008 #define TOK_GT 0x9f
1009
1010 #define TOK_LAND 0xa0
1011 #define TOK_LOR 0xa1
1012 #define TOK_DEC 0xa2
1013 #define TOK_MID 0xa3 /* inc/dec, to void constant */
1014 #define TOK_INC 0xa4
1015 #define TOK_UDIV 0xb0 /* unsigned division */
1016 #define TOK_UMOD 0xb1 /* unsigned modulo */
1017 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
1018
1019 /* tokens that carry values (in additional token string space / tokc) --> */
1020 #define TOK_CCHAR 0xb3 /* char constant in tokc */
1021 #define TOK_LCHAR 0xb4
1022 #define TOK_CINT 0xb5 /* number in tokc */
1023 #define TOK_CUINT 0xb6 /* unsigned int constant */
1024 #define TOK_CLLONG 0xb7 /* long long constant */
1025 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
1026 #define TOK_STR 0xb9 /* pointer to string in tokc */
1027 #define TOK_LSTR 0xba
1028 #define TOK_CFLOAT 0xbb /* float constant */
1029 #define TOK_CDOUBLE 0xbc /* double constant */
1030 #define TOK_CLDOUBLE 0xbd /* long double constant */
1031 #define TOK_PPNUM 0xbe /* preprocessor number */
1032 #define TOK_PPSTR 0xbf /* preprocessor string */
1033 #define TOK_LINENUM 0xc0 /* line number info */
1034 #define TOK_TWODOTS 0xa8 /* C++ token ? */
1035 /* <-- */
1036
1037 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
1038 #define TOK_ADDC1 0xc3 /* add with carry generation */
1039 #define TOK_ADDC2 0xc4 /* add with carry use */
1040 #define TOK_SUBC1 0xc5 /* add with carry generation */
1041 #define TOK_SUBC2 0xc6 /* add with carry use */
1042 #define TOK_ARROW 0xc7
1043 #define TOK_DOTS 0xc8 /* three dots */
1044 #define TOK_SHR 0xc9 /* unsigned shift right */
1045 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
1046 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
1047 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
1048 #define TOK_PPJOIN 0xcd /* A '##' in the right position to mean pasting */
1049 #define TOK_CLONG 0xce /* long constant */
1050 #define TOK_CULONG 0xcf /* unsigned long constant */
1051
1052 #define TOK_SHL 0x01 /* shift left */
1053 #define TOK_SAR 0x02 /* signed shift right */
1054
1055 /* assignment operators : normal operator or 0x80 */
1056 #define TOK_A_MOD 0xa5
1057 #define TOK_A_AND 0xa6
1058 #define TOK_A_MUL 0xaa
1059 #define TOK_A_ADD 0xab
1060 #define TOK_A_SUB 0xad
1061 #define TOK_A_DIV 0xaf
1062 #define TOK_A_XOR 0xde
1063 #define TOK_A_OR 0xfc
1064 #define TOK_A_SHL 0x81
1065 #define TOK_A_SAR 0x82
1066
1067 #define TOK_EOF (-1) /* end of file */
1068 #define TOK_LINEFEED 10 /* line feed */
1069
1070 /* all identifiers and strings have token above that */
1071 #define TOK_IDENT 256
1072
1073 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
1074 #define TOK_ASM_int TOK_INT
1075 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
1076 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
1077 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
1078
1079 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1080 /* only used for i386 asm opcodes definitions */
1081 #define DEF_BWL(x) \
1082 DEF(TOK_ASM_ ## x ## b, #x "b") \
1083 DEF(TOK_ASM_ ## x ## w, #x "w") \
1084 DEF(TOK_ASM_ ## x ## l, #x "l") \
1085 DEF(TOK_ASM_ ## x, #x)
1086 #define DEF_WL(x) \
1087 DEF(TOK_ASM_ ## x ## w, #x "w") \
1088 DEF(TOK_ASM_ ## x ## l, #x "l") \
1089 DEF(TOK_ASM_ ## x, #x)
1090 #ifdef TCC_TARGET_X86_64
1091 # define DEF_BWLQ(x) \
1092 DEF(TOK_ASM_ ## x ## b, #x "b") \
1093 DEF(TOK_ASM_ ## x ## w, #x "w") \
1094 DEF(TOK_ASM_ ## x ## l, #x "l") \
1095 DEF(TOK_ASM_ ## x ## q, #x "q") \
1096 DEF(TOK_ASM_ ## x, #x)
1097 # define DEF_WLQ(x) \
1098 DEF(TOK_ASM_ ## x ## w, #x "w") \
1099 DEF(TOK_ASM_ ## x ## l, #x "l") \
1100 DEF(TOK_ASM_ ## x ## q, #x "q") \
1101 DEF(TOK_ASM_ ## x, #x)
1102 # define DEF_BWLX DEF_BWLQ
1103 # define DEF_WLX DEF_WLQ
1104 /* number of sizes + 1 */
1105 # define NBWLX 5
1106 #else
1107 # define DEF_BWLX DEF_BWL
1108 # define DEF_WLX DEF_WL
1109 /* number of sizes + 1 */
1110 # define NBWLX 4
1111 #endif
1112
1113 #define DEF_FP1(x) \
1114 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
1115 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
1116 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
1117 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
1118
1119 #define DEF_FP(x) \
1120 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
1121 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1122 DEF_FP1(x)
1123
1124 #define DEF_ASMTEST(x,suffix) \
1125 DEF_ASM(x ## o ## suffix) \
1126 DEF_ASM(x ## no ## suffix) \
1127 DEF_ASM(x ## b ## suffix) \
1128 DEF_ASM(x ## c ## suffix) \
1129 DEF_ASM(x ## nae ## suffix) \
1130 DEF_ASM(x ## nb ## suffix) \
1131 DEF_ASM(x ## nc ## suffix) \
1132 DEF_ASM(x ## ae ## suffix) \
1133 DEF_ASM(x ## e ## suffix) \
1134 DEF_ASM(x ## z ## suffix) \
1135 DEF_ASM(x ## ne ## suffix) \
1136 DEF_ASM(x ## nz ## suffix) \
1137 DEF_ASM(x ## be ## suffix) \
1138 DEF_ASM(x ## na ## suffix) \
1139 DEF_ASM(x ## nbe ## suffix) \
1140 DEF_ASM(x ## a ## suffix) \
1141 DEF_ASM(x ## s ## suffix) \
1142 DEF_ASM(x ## ns ## suffix) \
1143 DEF_ASM(x ## p ## suffix) \
1144 DEF_ASM(x ## pe ## suffix) \
1145 DEF_ASM(x ## np ## suffix) \
1146 DEF_ASM(x ## po ## suffix) \
1147 DEF_ASM(x ## l ## suffix) \
1148 DEF_ASM(x ## nge ## suffix) \
1149 DEF_ASM(x ## nl ## suffix) \
1150 DEF_ASM(x ## ge ## suffix) \
1151 DEF_ASM(x ## le ## suffix) \
1152 DEF_ASM(x ## ng ## suffix) \
1153 DEF_ASM(x ## nle ## suffix) \
1154 DEF_ASM(x ## g ## suffix)
1155
1156 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1157
1158 enum tcc_token {
1159 TOK_LAST = TOK_IDENT - 1
1160 #define DEF(id, str) ,id
1161 #include "tcctok.h"
1162 #undef DEF
1163 };
1164
1165 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1166 #define TOK_UIDENT TOK_DEFINE
1167
1168 /* ------------ libtcc.c ------------ */
1169
1170 ST_DATA struct TCCState *tcc_state;
1171
1172 /* public functions currently used by the tcc main function */
1173 ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s);
1174 ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s);
1175 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1176 PUB_FUNC char *tcc_basename(const char *name);
1177 PUB_FUNC char *tcc_fileextension (const char *name);
1178
1179 #ifndef MEM_DEBUG
1180 PUB_FUNC void tcc_free(void *ptr);
1181 PUB_FUNC void *tcc_malloc(unsigned long size);
1182 PUB_FUNC void *tcc_mallocz(unsigned long size);
1183 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1184 PUB_FUNC char *tcc_strdup(const char *str);
1185 #else
1186 #define tcc_free(ptr) tcc_free_debug(ptr)
1187 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1188 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1189 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1190 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1191 PUB_FUNC void tcc_free_debug(void *ptr);
1192 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1193 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1194 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1195 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1196 #endif
1197
1198 #define free(p) use_tcc_free(p)
1199 #define malloc(s) use_tcc_malloc(s)
1200 #define realloc(p, s) use_tcc_realloc(p, s)
1201 #undef strdup
1202 #define strdup(s) use_tcc_strdup(s)
1203 PUB_FUNC void _tcc_error_noabort(const char *fmt, ...);
1204 PUB_FUNC NORETURN void _tcc_error(const char *fmt, ...);
1205 PUB_FUNC void _tcc_warning(const char *fmt, ...);
1206
1207 /* other utilities */
1208 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1209 ST_FUNC void dynarray_reset(void *pp, int *n);
1210 ST_INLN void cstr_ccat(CString *cstr, int ch);
1211 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1212 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1213 ST_FUNC void cstr_new(CString *cstr);
1214 ST_FUNC void cstr_free(CString *cstr);
1215 ST_FUNC int cstr_printf(CString *cs, const char *fmt, ...);
1216 ST_FUNC void cstr_reset(CString *cstr);
1217
1218 ST_INLN void sym_free(Sym *sym);
1219 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, int c);
1220 ST_FUNC Sym *sym_find2(Sym *s, int v);
1221 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1222 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1223 ST_INLN Sym *struct_find(int v);
1224 ST_INLN Sym *sym_find(int v);
1225 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1226
1227 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1228 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1229 ST_FUNC void tcc_close(void);
1230
1231 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1232 /* flags: */
1233 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1234 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1235 #define AFF_TYPE_BIN 0x40 /* file to add is binary */
1236 #define AFF_WHOLE_ARCHIVE 0x80 /* load all objects from archive */
1237 /* s->filetype: */
1238 #define AFF_TYPE_NONE 0
1239 #define AFF_TYPE_C 1
1240 #define AFF_TYPE_ASM 2
1241 #define AFF_TYPE_ASMPP 4
1242 #define AFF_TYPE_LIB 8
1243 #define AFF_TYPE_MASK (15 | AFF_TYPE_BIN)
1244 /* values from tcc_object_type(...) */
1245 #define AFF_BINTYPE_REL 1
1246 #define AFF_BINTYPE_DYN 2
1247 #define AFF_BINTYPE_AR 3
1248 #define AFF_BINTYPE_C67 4
1249
1250
1251 #ifndef TCC_TARGET_PE
1252 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1253 #endif
1254 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1255 #ifdef CONFIG_TCC_BCHECK
1256 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1257 #endif
1258 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1259 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1260 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1261 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1262 #ifdef _WIN32
1263 ST_FUNC char *normalize_slashes(char *path);
1264 #endif
1265
1266 /* tcc_parse_args return codes: */
1267 #define OPT_HELP 1
1268 #define OPT_HELP2 2
1269 #define OPT_V 3
1270 #define OPT_PRINT_DIRS 4
1271 #define OPT_AR 5
1272 #define OPT_IMPDEF 6
1273 #define OPT_M32 32
1274 #define OPT_M64 64
1275
1276 /* ------------ tccpp.c ------------ */
1277
1278 ST_DATA struct BufferedFile *file;
1279 ST_DATA int ch, tok;
1280 ST_DATA CValue tokc;
1281 ST_DATA const int *macro_ptr;
1282 ST_DATA int parse_flags;
1283 ST_DATA int tok_flags;
1284 ST_DATA CString tokcstr; /* current parsed string, if any */
1285
1286 /* display benchmark infos */
1287 ST_DATA int tok_ident;
1288 ST_DATA TokenSym **table_ident;
1289
1290 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1291 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1292 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1293 #define TOK_FLAG_EOF 0x0008 /* end of file */
1294
1295 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1296 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1297 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1298 token. line feed is also
1299 returned at eof */
1300 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1301 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1302 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1303 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1304
1305 /* isidnum_table flags: */
1306 #define IS_SPC 1
1307 #define IS_ID 2
1308 #define IS_NUM 4
1309
1310 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1311 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1312 ST_FUNC void begin_macro(TokenString *str, int alloc);
1313 ST_FUNC void end_macro(void);
1314 ST_FUNC int set_idnum(int c, int val);
1315 ST_INLN void tok_str_new(TokenString *s);
1316 ST_FUNC TokenString *tok_str_alloc(void);
1317 ST_FUNC void tok_str_free(TokenString *s);
1318 ST_FUNC void tok_str_free_str(int *str);
1319 ST_FUNC void tok_str_add(TokenString *s, int t);
1320 ST_FUNC void tok_str_add_tok(TokenString *s);
1321 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1322 ST_FUNC void define_undef(Sym *s);
1323 ST_INLN Sym *define_find(int v);
1324 ST_FUNC void free_defines(Sym *b);
1325 ST_FUNC Sym *label_find(int v);
1326 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1327 ST_FUNC void label_pop(Sym **ptop, Sym *slast, int keep);
1328 ST_FUNC void parse_define(void);
1329 ST_FUNC void preprocess(int is_bof);
1330 ST_FUNC void next_nomacro(void);
1331 ST_FUNC void next(void);
1332 ST_INLN void unget_tok(int last_tok);
1333 ST_FUNC void preprocess_start(TCCState *s1, int is_asm);
1334 ST_FUNC void preprocess_end(TCCState *s1);
1335 ST_FUNC void tccpp_new(TCCState *s);
1336 ST_FUNC void tccpp_delete(TCCState *s);
1337 ST_FUNC int tcc_preprocess(TCCState *s1);
1338 ST_FUNC void skip(int c);
1339 ST_FUNC NORETURN void expect(const char *msg);
1340
1341 /* space excluding newline */
1342 static inline int is_space(int ch) {
1343 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1344 }
1345 static inline int isid(int c) {
1346 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1347 }
1348 static inline int isnum(int c) {
1349 return c >= '0' && c <= '9';
1350 }
1351 static inline int isoct(int c) {
1352 return c >= '0' && c <= '7';
1353 }
1354 static inline int toup(int c) {
1355 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1356 }
1357
1358 /* ------------ tccgen.c ------------ */
1359
1360 #define SYM_POOL_NB (8192 / sizeof(Sym))
1361
1362 ST_DATA Sym *global_stack;
1363 ST_DATA Sym *local_stack;
1364 ST_DATA Sym *local_label_stack;
1365 ST_DATA Sym *global_label_stack;
1366 ST_DATA Sym *define_stack;
1367 ST_DATA CType int_type, func_old_type, char_pointer_type;
1368 ST_DATA SValue *vtop;
1369 ST_DATA int rsym, anon_sym, ind, loc;
1370
1371 ST_DATA int const_wanted; /* true if constant wanted */
1372 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1373 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1374 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1375 ST_DATA int func_var; /* true if current function is variadic */
1376 ST_DATA int func_vc;
1377 ST_DATA const char *funcname;
1378
1379 ST_FUNC void tcc_debug_start(TCCState *s1);
1380 ST_FUNC void tcc_debug_end(TCCState *s1);
1381 ST_FUNC void tcc_debug_bincl(TCCState *s1);
1382 ST_FUNC void tcc_debug_eincl(TCCState *s1);
1383 ST_FUNC void tcc_debug_putfile(TCCState *s1, const char *filename);
1384 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1385 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1386 ST_FUNC void tcc_debug_line(TCCState *s1);
1387
1388 ST_FUNC void tccgen_init(TCCState *s1);
1389 ST_FUNC int tccgen_compile(TCCState *s1);
1390 ST_FUNC void tccgen_finish(TCCState *s1);
1391 ST_FUNC void check_vstack(void);
1392
1393 ST_INLN int is_float(int t);
1394 ST_FUNC int ieee_finite(double d);
1395 ST_FUNC void test_lvalue(void);
1396 ST_FUNC void vpushi(int v);
1397 ST_FUNC ElfSym *elfsym(Sym *);
1398 ST_FUNC void update_storage(Sym *sym);
1399 ST_FUNC Sym *external_global_sym(int v, CType *type);
1400 ST_FUNC void vset(CType *type, int r, int v);
1401 ST_FUNC void vset_VT_CMP(int op);
1402 ST_FUNC void vswap(void);
1403 ST_FUNC void vpush_global_sym(CType *type, int v);
1404 ST_FUNC void vrote(SValue *e, int n);
1405 ST_FUNC void vrott(int n);
1406 ST_FUNC void vrotb(int n);
1407 #if PTR_SIZE == 4
1408 ST_FUNC void lexpand(void);
1409 #endif
1410 #ifdef TCC_TARGET_ARM
1411 ST_FUNC int get_reg_ex(int rc, int rc2);
1412 #endif
1413 ST_FUNC void vpushv(SValue *v);
1414 ST_FUNC void save_reg(int r);
1415 ST_FUNC void save_reg_upstack(int r, int n);
1416 ST_FUNC int get_reg(int rc);
1417 ST_FUNC void save_regs(int n);
1418 ST_FUNC void gaddrof(void);
1419 ST_FUNC int gv(int rc);
1420 ST_FUNC void gv2(int rc1, int rc2);
1421 ST_FUNC void vpop(void);
1422 ST_FUNC void gen_op(int op);
1423 ST_FUNC int type_size(CType *type, int *a);
1424 ST_FUNC void mk_pointer(CType *type);
1425 ST_FUNC void vstore(void);
1426 ST_FUNC void inc(int post, int c);
1427 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1428 ST_FUNC void parse_asm_str(CString *astr);
1429 ST_FUNC void indir(void);
1430 ST_FUNC void unary(void);
1431 ST_FUNC void expr_prod(void);
1432 ST_FUNC void expr_sum(void);
1433 ST_FUNC void gexpr(void);
1434 ST_FUNC int expr_const(void);
1435 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1436 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1437 #endif
1438 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1439 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1440 #endif
1441 #ifdef CONFIG_TCC_BCHECK
1442 ST_FUNC void gbound_args(int nb_args);
1443 #endif
1444
1445 /* ------------ tccelf.c ------------ */
1446
1447 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1448 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1449 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1450
1451 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1452
1453 typedef struct {
1454 unsigned int n_strx; /* index into string table of name */
1455 unsigned char n_type; /* type of symbol */
1456 unsigned char n_other; /* misc info (usually empty) */
1457 unsigned short n_desc; /* description field */
1458 unsigned int n_value; /* value of symbol */
1459 } Stab_Sym;
1460
1461 ST_FUNC void tccelf_new(TCCState *s);
1462 ST_FUNC void tccelf_delete(TCCState *s);
1463 ST_FUNC void tccelf_stab_new(TCCState *s);
1464 ST_FUNC void tccelf_begin_file(TCCState *s1);
1465 ST_FUNC void tccelf_end_file(TCCState *s1);
1466 #ifdef CONFIG_TCC_BCHECK
1467 ST_FUNC void tccelf_bounds_new(TCCState *s);
1468 #endif
1469 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1470 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1471 ST_FUNC size_t section_add(Section *sec, addr_t size, int align);
1472 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1473 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1474 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1475 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);
1476
1477 ST_FUNC void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore);
1478 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1479 #if PTR_SIZE == 4
1480 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1481 #endif
1482 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1483
1484 ST_FUNC void add_init_array (TCCState *s1, Sym *sym);
1485 ST_FUNC void add_fini_array (TCCState *s1, Sym *sym);
1486
1487 ST_FUNC int put_elf_str(Section *s, const char *sym);
1488 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1489 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1490 ST_FUNC int find_elf_sym(Section *s, const char *name);
1491 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1492 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1493
1494 ST_FUNC void put_stabs(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value);
1495 ST_FUNC void put_stabs_r(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1496 ST_FUNC void put_stabn(TCCState *s1, int type, int other, int desc, int value);
1497
1498 ST_FUNC void resolve_common_syms(TCCState *s1);
1499 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1500 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1501
1502 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1503 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1504 ST_FUNC int tcc_load_archive(TCCState *s1, int fd, int alacarte);
1505 ST_FUNC void tcc_add_runtime(TCCState *s1);
1506
1507 #ifndef ELF_OBJ_ONLY
1508 ST_FUNC void build_got_entries(TCCState *s1);
1509 #endif
1510 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1511 ST_FUNC void squeeze_multi_relocs(Section *sec, size_t oldrelocoffset);
1512
1513 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1514 ST_FUNC void list_elf_symbols(TCCState *s, void *ctx,
1515 void (*symbol_cb)(void *ctx, const char *name, const void *val));
1516 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1517 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1518 #endif
1519
1520 #ifndef TCC_TARGET_PE
1521 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1522 ST_FUNC int tcc_load_ldscript(TCCState *s1, int fd);
1523 #endif
1524
1525 /* ------------ xxx-link.c ------------ */
1526
1527 /* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1528 that unknown relocation don't create a GOT or PLT entry */
1529 enum gotplt_entry {
1530 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1531 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1532 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1533 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1534 };
1535
1536 #ifndef ELF_OBJ_ONLY
1537 ST_FUNC int code_reloc (int reloc_type);
1538 ST_FUNC int gotplt_entry_type (int reloc_type);
1539 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1540 ST_FUNC void relocate_plt(TCCState *s1);
1541 #endif
1542 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
1543
1544 /* ------------ xxx-gen.c ------------ */
1545
1546 ST_DATA const int reg_classes[NB_REGS];
1547
1548 ST_FUNC void gsym_addr(int t, int a);
1549 ST_FUNC void gsym(int t);
1550 ST_FUNC void load(int r, SValue *sv);
1551 ST_FUNC void store(int r, SValue *v);
1552 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1553 ST_FUNC void gfunc_call(int nb_args);
1554 ST_FUNC void gfunc_prolog(Sym *func_sym);
1555 ST_FUNC void gfunc_epilog(void);
1556 ST_FUNC void gen_fill_nops(int);
1557 ST_FUNC int gjmp(int t);
1558 ST_FUNC void gjmp_addr(int a);
1559 ST_FUNC int gjmp_cond(int op, int t);
1560 ST_FUNC int gjmp_append(int n, int t);
1561 ST_FUNC void gen_opi(int op);
1562 ST_FUNC void gen_opf(int op);
1563 ST_FUNC void gen_cvt_ftoi(int t);
1564 ST_FUNC void gen_cvt_itof(int t);
1565 ST_FUNC void gen_cvt_ftof(int t);
1566 ST_FUNC void ggoto(void);
1567 #ifndef TCC_TARGET_C67
1568 ST_FUNC void o(unsigned int c);
1569 #endif
1570 ST_FUNC void gen_vla_sp_save(int addr);
1571 ST_FUNC void gen_vla_sp_restore(int addr);
1572 ST_FUNC void gen_vla_alloc(CType *type, int align);
1573
1574 static inline uint16_t read16le(unsigned char *p) {
1575 return p[0] | (uint16_t)p[1] << 8;
1576 }
1577 static inline void write16le(unsigned char *p, uint16_t x) {
1578 p[0] = x & 255; p[1] = x >> 8 & 255;
1579 }
1580 static inline uint32_t read32le(unsigned char *p) {
1581 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1582 }
1583 static inline void write32le(unsigned char *p, uint32_t x) {
1584 write16le(p, x); write16le(p + 2, x >> 16);
1585 }
1586 static inline void add32le(unsigned char *p, int32_t x) {
1587 write32le(p, read32le(p) + x);
1588 }
1589 static inline uint64_t read64le(unsigned char *p) {
1590 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1591 }
1592 static inline void write64le(unsigned char *p, uint64_t x) {
1593 write32le(p, x); write32le(p + 4, x >> 32);
1594 }
1595 static inline void add64le(unsigned char *p, int64_t x) {
1596 write64le(p, read64le(p) + x);
1597 }
1598
1599 /* ------------ i386-gen.c ------------ */
1600 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1601 ST_FUNC void g(int c);
1602 ST_FUNC void gen_le16(int c);
1603 ST_FUNC void gen_le32(int c);
1604 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1605 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1606 ST_FUNC void gen_cvt_csti(int t);
1607 #endif
1608
1609 #ifdef CONFIG_TCC_BCHECK
1610 ST_FUNC void gen_bounded_ptr_add(void);
1611 ST_FUNC void gen_bounded_ptr_deref(void);
1612 #endif
1613
1614 /* ------------ x86_64-gen.c ------------ */
1615 #ifdef TCC_TARGET_X86_64
1616 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1617 ST_FUNC void gen_opl(int op);
1618 #ifdef TCC_TARGET_PE
1619 ST_FUNC void gen_vla_result(int addr);
1620 #endif
1621 ST_FUNC void gen_cvt_sxtw(void);
1622 ST_FUNC void gen_cvt_csti(int t);
1623 #endif
1624
1625 /* ------------ arm-gen.c ------------ */
1626 #ifdef TCC_TARGET_ARM
1627 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1628 PUB_FUNC const char *default_elfinterp(struct TCCState *s);
1629 #endif
1630 ST_FUNC void arm_init(struct TCCState *s);
1631 #endif
1632
1633 /* ------------ arm64-gen.c ------------ */
1634 #ifdef TCC_TARGET_ARM64
1635 ST_FUNC void gen_opl(int op);
1636 ST_FUNC void gfunc_return(CType *func_type);
1637 ST_FUNC void gen_va_start(void);
1638 ST_FUNC void gen_va_arg(CType *t);
1639 ST_FUNC void gen_clear_cache(void);
1640 ST_FUNC void gen_cvt_sxtw(void);
1641 ST_FUNC void gen_cvt_csti(int t);
1642 #endif
1643
1644 /* ------------ riscv64-gen.c ------------ */
1645 #ifdef TCC_TARGET_RISCV64
1646 ST_FUNC void gen_opl(int op);
1647 //ST_FUNC void gfunc_return(CType *func_type);
1648 ST_FUNC void gen_va_start(void);
1649 ST_FUNC void arch_transfer_ret_regs(int);
1650 ST_FUNC void gen_cvt_sxtw(void);
1651 #endif
1652
1653 /* ------------ c67-gen.c ------------ */
1654 #ifdef TCC_TARGET_C67
1655 #endif
1656
1657 /* ------------ tcccoff.c ------------ */
1658
1659 #ifdef TCC_TARGET_COFF
1660 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1661 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1662 #endif
1663
1664 /* ------------ tccasm.c ------------ */
1665 ST_FUNC void asm_instr(void);
1666 ST_FUNC void asm_global_instr(void);
1667 #ifdef CONFIG_TCC_ASM
1668 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1669 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1670 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1671 ST_FUNC int asm_int_expr(TCCState *s1);
1672 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1673 /* ------------ i386-asm.c ------------ */
1674 ST_FUNC void gen_expr32(ExprValue *pe);
1675 #ifdef TCC_TARGET_X86_64
1676 ST_FUNC void gen_expr64(ExprValue *pe);
1677 #endif
1678 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1679 ST_FUNC int asm_parse_regvar(int t);
1680 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1681 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1682 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1683 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1684 #endif
1685
1686 /* ------------ tccpe.c -------------- */
1687 #ifdef TCC_TARGET_PE
1688 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1689 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1690 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1691 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1692 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1693 #endif
1694 #ifdef TCC_TARGET_X86_64
1695 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1696 #endif
1697 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1698 /* symbol properties stored in Elf32_Sym->st_other */
1699 # define ST_PE_EXPORT 0x10
1700 # define ST_PE_IMPORT 0x20
1701 # define ST_PE_STDCALL 0x40
1702 #endif
1703 #define ST_ASM_SET 0x04
1704
1705 /* ------------ tccrun.c ----------------- */
1706 #ifdef TCC_IS_NATIVE
1707 #ifdef CONFIG_TCC_STATIC
1708 #define RTLD_LAZY 0x001
1709 #define RTLD_NOW 0x002
1710 #define RTLD_GLOBAL 0x100
1711 #define RTLD_DEFAULT NULL
1712 /* dummy function for profiling */
1713 ST_FUNC void *dlopen(const char *filename, int flag);
1714 ST_FUNC void dlclose(void *p);
1715 ST_FUNC const char *dlerror(void);
1716 ST_FUNC void *dlsym(void *handle, const char *symbol);
1717 #endif
1718 ST_FUNC void tcc_run_free(TCCState *s1);
1719 #endif
1720
1721 /* ------------ tcctools.c ----------------- */
1722 #if 0 /* included in tcc.c */
1723 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1724 #ifdef TCC_TARGET_PE
1725 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1726 #endif
1727 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1728 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1729 #endif
1730
1731 /********************************************************/
1732 #undef ST_DATA
1733 #if ONE_SOURCE
1734 #define ST_DATA static
1735 #else
1736 #define ST_DATA
1737 #endif
1738 /********************************************************/
1739
1740 #define text_section TCC_STATE_VAR(text_section)
1741 #define data_section TCC_STATE_VAR(data_section)
1742 #define bss_section TCC_STATE_VAR(bss_section)
1743 #define common_section TCC_STATE_VAR(common_section)
1744 #define cur_text_section TCC_STATE_VAR(cur_text_section)
1745 #define bounds_section TCC_STATE_VAR(bounds_section)
1746 #define lbounds_section TCC_STATE_VAR(lbounds_section)
1747 #define symtab_section TCC_STATE_VAR(symtab_section)
1748 #define stab_section TCC_STATE_VAR(stab_section)
1749 #define stabstr_section stab_section->link
1750 #define gnu_ext TCC_STATE_VAR(gnu_ext)
1751 #define tcc_error_noabort TCC_SET_STATE(_tcc_error_noabort)
1752 #define tcc_error TCC_SET_STATE(_tcc_error)
1753 #define tcc_warning TCC_SET_STATE(_tcc_warning)
1754
1755 #define total_idents TCC_STATE_VAR(total_idents)
1756 #define total_lines TCC_STATE_VAR(total_lines)
1757 #define total_bytes TCC_STATE_VAR(total_bytes)
1758
1759 PUB_FUNC void tcc_enter_state(TCCState *s1);
1760
1761 /********************************************************/
1762 #endif /* _TCC_H */
1763
1764 #undef TCC_STATE_VAR
1765 #undef TCC_SET_STATE
1766
1767 #ifdef USING_GLOBALS
1768 # define TCC_STATE_VAR(sym) tcc_state->sym
1769 # define TCC_SET_STATE(fn) fn
1770 # undef USING_GLOBALS
1771 #else
1772 # define TCC_STATE_VAR(sym) s1->sym
1773 # define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn)
1774 /* actually we could avoid the tcc_enter_state(s1) hack by using
1775 __VA_ARGS__ except that some compiler doesn't support it. */
1776 #endif
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