2 * TCC - Tiny C Compiler
4 * Copyright (c) 2001-2004 Fabrice Bellard
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.
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.
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
39 # include <sys/time.h>
40 # ifndef CONFIG_TCC_STATIC
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
);
50 # include <io.h> /* open, close etc. */
51 # include <direct.h> /* getcwd */
55 # define inline __inline
56 # define snprintf _snprintf
57 # define vsnprintf _vsnprintf
59 # define strtold (long double)strtod
60 # define strtof (float)strtod
61 # define strtoll _strtoi64
62 # define strtoull _strtoui64
65 # define LIBTCCAPI __declspec(dllexport)
66 # define PUB_FUNC LIBTCCAPI
68 # define inp next_inp /* inp is an intrinsic on msvc/mingw */
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
77 # undef CONFIG_TCC_STATIC
85 #define offsetof(type, field) ((size_t) &((type *)0)->field)
89 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
93 # define NORETURN __declspec(noreturn)
94 # define ALIGNED(x) __declspec(align(x))
96 # define NORETURN __attribute__((noreturn))
97 # define ALIGNED(x) __attribute__((aligned(x)))
101 # define IS_DIRSEP(c) (c == '/' || c == '\\')
102 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
103 # define PATHCMP stricmp
105 # define IS_DIRSEP(c) (c == '/')
106 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
107 # define PATHCMP strcmp
110 /* -------------------------------------------- */
113 /* #define PARSE_DEBUG */
114 /* preprocessor debug */
115 /* #define PP_DEBUG */
116 /* include file debug */
117 /* #define INC_DEBUG */
118 /* memory leak debug */
119 /* #define MEM_DEBUG */
120 /* assembler debug */
121 /* #define ASM_DEBUG */
123 /* target selection */
124 /* #define TCC_TARGET_I386 *//* i386 code generator */
125 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
126 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
127 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
128 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
130 /* default target is I386 */
131 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
132 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
133 !defined(TCC_TARGET_X86_64)
134 # if defined __x86_64__ || defined _AMD64_
135 # define TCC_TARGET_X86_64
136 # elif defined __arm__
137 # define TCC_TARGET_ARM
138 # define TCC_ARM_EABI
139 # define TCC_ARM_HARDFLOAT
140 # elif defined __aarch64__
141 # define TCC_TARGET_ARM64
143 # define TCC_TARGET_I386
146 # define TCC_TARGET_PE 1
150 /* only native compiler supports -run */
151 #if defined _WIN32 == defined TCC_TARGET_PE
152 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
153 # define TCC_IS_NATIVE
154 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
155 # define TCC_IS_NATIVE
156 # elif defined __arm__ && defined TCC_TARGET_ARM
157 # define TCC_IS_NATIVE
158 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
159 # define TCC_IS_NATIVE
163 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
164 # define CONFIG_TCC_BACKTRACE
165 # if (defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64) \
166 && !defined TCC_UCLIBC && !defined TCC_MUSL
167 # define CONFIG_TCC_BCHECK /* enable bound checking code */
171 /* ------------ path configuration ------------ */
173 #ifndef CONFIG_SYSROOT
174 # define CONFIG_SYSROOT ""
176 #ifndef CONFIG_TCCDIR
177 # define CONFIG_TCCDIR "/usr/local/lib/tcc"
180 # define CONFIG_LDDIR "lib"
182 #ifdef CONFIG_TRIPLET
183 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
184 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
186 # define USE_TRIPLET(s) s
187 # define ALSO_TRIPLET(s) s
190 /* path to find crt1.o, crti.o and crtn.o */
191 #ifndef CONFIG_TCC_CRTPREFIX
192 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
195 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
197 /* system include paths */
198 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
199 # ifdef TCC_TARGET_PE
200 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
202 # define CONFIG_TCC_SYSINCLUDEPATHS \
204 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
205 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
209 /* library search paths */
210 #ifndef CONFIG_TCC_LIBPATHS
211 # ifdef TCC_TARGET_PE
212 # define CONFIG_TCC_LIBPATHS "{B}/lib"
214 # define CONFIG_TCC_LIBPATHS \
215 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
216 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
217 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
221 /* name of ELF interpreter */
222 #ifndef CONFIG_TCC_ELFINTERP
223 # if defined __FreeBSD__
224 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
225 # elif defined __FreeBSD_kernel__
226 # if defined(TCC_TARGET_X86_64)
227 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
229 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
231 # elif defined __DragonFly__
232 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
233 # elif defined __NetBSD__
234 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
235 # elif defined __GNU__
236 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
237 # elif defined(TCC_TARGET_PE)
238 # define CONFIG_TCC_ELFINTERP "-"
239 # elif defined(TCC_UCLIBC)
240 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
241 # elif defined TCC_TARGET_ARM64
242 # if defined(TCC_MUSL)
243 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
245 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
247 # elif defined(TCC_TARGET_X86_64)
248 # if defined(TCC_MUSL)
249 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
251 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
253 # elif !defined(TCC_ARM_EABI)
254 # if defined(TCC_MUSL)
255 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
257 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
262 /* var elf_interp dans *-gen.c */
263 #ifdef CONFIG_TCC_ELFINTERP
264 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
266 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
269 /* (target specific) libtcc1.a */
271 # define TCC_LIBTCC1 "libtcc1.a"
274 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
275 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
276 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
285 /* -------------------------------------------- */
291 /* -------------------------------------------- */
293 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
298 # define ONE_SOURCE 1
302 #define ST_INLN static inline
303 #define ST_FUNC static
304 #define ST_DATA static
308 #define ST_DATA extern
311 #ifdef TCC_PROFILE /* profile all functions */
315 /* -------------------------------------------- */
316 /* include the target specific definitions */
318 #define TARGET_DEFS_ONLY
319 #ifdef TCC_TARGET_I386
320 # include "i386-gen.c"
321 # include "i386-link.c"
323 #ifdef TCC_TARGET_X86_64
324 # include "x86_64-gen.c"
325 # include "x86_64-link.c"
327 #ifdef TCC_TARGET_ARM
328 # include "arm-gen.c"
329 # include "arm-link.c"
330 # include "arm-asm.c"
332 #ifdef TCC_TARGET_ARM64
333 # include "arm64-gen.c"
334 # include "arm64-link.c"
336 #ifdef TCC_TARGET_C67
337 # define TCC_TARGET_COFF
339 # include "c67-gen.c"
340 # include "c67-link.c"
342 #undef TARGET_DEFS_ONLY
344 /* -------------------------------------------- */
347 # define ELFCLASSW ELFCLASS64
348 # define ElfW(type) Elf##64##_##type
349 # define ELFW(type) ELF##64##_##type
350 # define ElfW_Rel ElfW(Rela)
351 # define SHT_RELX SHT_RELA
352 # define REL_SECTION_FMT ".rela%s"
354 # define ELFCLASSW ELFCLASS32
355 # define ElfW(type) Elf##32##_##type
356 # define ELFW(type) ELF##32##_##type
357 # define ElfW_Rel ElfW(Rel)
358 # define SHT_RELX SHT_REL
359 # define REL_SECTION_FMT ".rel%s"
361 /* target address type */
362 #define addr_t ElfW(Addr)
364 #if PTR_SIZE == 8 && !defined TCC_TARGET_PE
370 /* -------------------------------------------- */
372 #define INCLUDE_STACK_SIZE 32
373 #define IFDEF_STACK_SIZE 64
374 #define VSTACK_SIZE 256
375 #define STRING_MAX_SIZE 1024
376 #define TOKSTR_MAX_SIZE 256
377 #define PACK_STACK_SIZE 8
379 #define TOK_HASH_SIZE 16384 /* must be a power of two */
380 #define TOK_ALLOC_INCR 512 /* must be a power of two */
381 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
383 /* token symbol management */
384 typedef struct TokenSym
{
385 struct TokenSym
*hash_next
;
386 struct Sym
*sym_define
; /* direct pointer to define */
387 struct Sym
*sym_label
; /* direct pointer to label */
388 struct Sym
*sym_struct
; /* direct pointer to structure */
389 struct Sym
*sym_identifier
; /* direct pointer to identifier */
390 int tok
; /* token number */
396 typedef unsigned short nwchar_t
;
398 typedef int nwchar_t
;
401 typedef struct CString
{
402 int size
; /* size in bytes */
403 void *data
; /* either 'char *' or 'nwchar_t *' */
407 /* type definition */
408 typedef struct CType
{
414 typedef union CValue
{
423 int tab
[LDOUBLE_SIZE
/4];
427 typedef struct SValue
{
428 CType type
; /* type */
429 unsigned short r
; /* register + flags */
430 unsigned short r2
; /* second register, used for 'long long'
431 type. If not used, set to VT_CONST */
432 CValue c
; /* constant, if VT_CONST */
433 struct Sym
*sym
; /* symbol, if (VT_SYM | VT_CONST), or if
434 result of unary() for an identifier. */
437 /* symbol attributes */
440 aligned
: 5, /* alignment as log2+1 (0 == unspecified) */
449 /* function attributes or temporary attributes for parsing */
452 func_call
: 3, /* calling convention (0..5), see below */
453 func_type
: 2, /* FUNC_OLD/NEW/ELLIPSIS */
454 func_body
: 1, /* body was defined */
455 func_args
: 8; /* PE __stdcall args */
458 /* GNUC attribute definition */
459 typedef struct AttributeDef
{
462 struct Section
*section
;
463 int alias_target
; /* token */
464 int asm_label
; /* associated asm label */
465 char attr_mode
; /* __attribute__((__mode__(...))) */
468 /* symbol management */
470 int v
; /* symbol token */
471 unsigned short r
; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
472 struct SymAttr a
; /* symbol attributes */
475 int c
; /* associated number or Elf symbol index */
477 int sym_scope
; /* scope level for locals */
478 int jnext
; /* next jump label */
479 struct FuncAttr f
; /* function attributes */
480 int auxtype
; /* bitfield access type */
483 long long enum_val
; /* enum constant if IS_ENUM_VAL */
484 int *d
; /* define token stream */
486 CType type
; /* associated type */
488 struct Sym
*next
; /* next related symbol (for fields and anoms) */
489 int asm_label
; /* associated asm label */
491 struct Sym
*prev
; /* prev symbol in stack */
492 struct Sym
*prev_tok
; /* previous symbol for this token */
495 /* section definition */
496 /* XXX: use directly ELF structure for parameters ? */
497 /* special flag to indicate that the section should not be linked to
499 #define SHF_PRIVATE 0x80000000
501 /* special flag, too */
502 #define SECTION_ABS ((void *)1)
504 typedef struct Section
{
505 unsigned long data_offset
; /* current data offset */
506 unsigned char *data
; /* section data */
507 unsigned long data_allocated
; /* used for realloc() handling */
508 int sh_name
; /* elf section name (only used during output) */
509 int sh_num
; /* elf section number */
510 int sh_type
; /* elf section type */
511 int sh_flags
; /* elf section flags */
512 int sh_info
; /* elf section info */
513 int sh_addralign
; /* elf section alignment */
514 int sh_entsize
; /* elf entry size */
515 unsigned long sh_size
; /* section size (only used during output) */
516 addr_t sh_addr
; /* address at which the section is relocated */
517 unsigned long sh_offset
; /* file offset */
518 int nb_hashed_syms
; /* used to resize the hash table */
519 struct Section
*link
; /* link to another section */
520 struct Section
*reloc
; /* corresponding section for relocation, if any */
521 struct Section
*hash
; /* hash table for symbols */
522 struct Section
*prev
; /* previous section on section stack */
523 char name
[1]; /* section name */
526 typedef struct DLLReference
{
532 /* -------------------------------------------------- */
534 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
535 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
536 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
538 /* stored in 'Sym->f.func_type' field */
539 #define FUNC_NEW 1 /* ansi function prototype */
540 #define FUNC_OLD 2 /* old function prototype */
541 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
543 /* stored in 'Sym->f.func_call' field */
544 #define FUNC_CDECL 0 /* standard c call */
545 #define FUNC_STDCALL 1 /* pascal c call */
546 #define FUNC_FASTCALL1 2 /* first param in %eax */
547 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
548 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
549 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
551 /* field 'Sym.t' for macros */
552 #define MACRO_OBJ 0 /* object like macro */
553 #define MACRO_FUNC 1 /* function like macro */
555 /* field 'Sym.r' for C labels */
556 #define LABEL_DEFINED 0 /* label is defined */
557 #define LABEL_FORWARD 1 /* label is forward defined */
558 #define LABEL_DECLARED 2 /* label is declared but never used */
560 /* type_decl() types */
561 #define TYPE_ABSTRACT 1 /* type without variable */
562 #define TYPE_DIRECT 2 /* type with variable */
564 #define IO_BUF_SIZE 8192
566 typedef struct BufferedFile
{
570 struct BufferedFile
*prev
;
571 int line_num
; /* current line number - here to simplify code */
572 int line_ref
; /* tcc -E: last printed line */
573 int ifndef_macro
; /* #ifndef macro / #endif search */
574 int ifndef_macro_saved
; /* saved ifndef_macro */
575 int *ifdef_stack_ptr
; /* ifdef_stack value at the start of the file */
576 int include_next_index
; /* next search path */
577 char filename
[1024]; /* filename */
578 char *true_filename
; /* filename not modified by # line directive */
579 unsigned char unget
[4];
580 unsigned char buffer
[1]; /* extra size for CH_EOB char */
583 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
584 #define CH_EOF (-1) /* end of file */
586 /* used to record tokens */
587 typedef struct TokenString
{
594 /* used to chain token-strings with begin/end_macro() */
595 struct TokenString
*prev
;
600 /* inline functions */
601 typedef struct InlineFunc
{
602 TokenString
*func_str
;
607 /* include file cache, used to find files faster and also to eliminate
608 inclusion if the include file is protected by #ifndef ... #endif */
609 typedef struct CachedInclude
{
612 int hash_next
; /* -1 if none */
613 char filename
[1]; /* path specified in #include */
616 #define CACHED_INCLUDES_HASH_SIZE 32
618 #ifdef CONFIG_TCC_ASM
619 typedef struct ExprValue
{
625 #define MAX_ASM_OPERANDS 30
626 typedef struct ASMOperand
{
627 int id
; /* GCC 3 optional identifier (0 if number only supported */
629 char asm_str
[16]; /* computed asm string for operand */
630 SValue
*vt
; /* C value of the expression */
631 int ref_index
; /* if >= 0, gives reference to a output constraint */
632 int input_index
; /* if >= 0, gives reference to an input constraint */
633 int priority
; /* priority, used to assign registers */
634 int reg
; /* if >= 0, register number used for this operand */
635 int is_llong
; /* true if double register value */
636 int is_memory
; /* true if memory operand */
637 int is_rw
; /* for '+' modifier */
641 /* extra symbol attributes (not in symbol table) */
647 #ifdef TCC_TARGET_ARM
648 unsigned char plt_thumb_stub
:1;
654 int verbose
; /* if true, display some information during compilation */
655 int nostdinc
; /* if true, no standard headers are added */
656 int nostdlib
; /* if true, no standard libraries are added */
657 int nocommon
; /* if true, do not use common symbols for .bss data */
658 int static_link
; /* if true, static linking is performed */
659 int rdynamic
; /* if true, all symbols are exported */
660 int symbolic
; /* if true, resolve symbols in the current module first */
661 int alacarte_link
; /* if true, only link in referenced objects from archive */
663 char *tcc_lib_path
; /* CONFIG_TCCDIR or -B option */
664 char *soname
; /* as specified on the command line (-soname) */
665 char *rpath
; /* as specified on the command line (-Wl,-rpath=) */
666 int enable_new_dtags
; /* ditto, (-Wl,--enable-new-dtags) */
668 /* output type, see TCC_OUTPUT_XXX */
670 /* output format, see TCC_OUTPUT_FORMAT_xxx */
673 /* C language options */
674 int char_is_unsigned
;
675 int leading_underscore
;
676 int ms_extensions
; /* allow nested named struct w/o identifier behave like unnamed */
677 int dollars_in_identifiers
; /* allows '$' char in identifiers */
678 int ms_bitfields
; /* if true, emulate MS algorithm for aligning bitfields */
680 /* warning switches */
681 int warn_write_strings
;
682 int warn_unsupported
;
685 int warn_implicit_function_declaration
;
688 /* compile with debug symbol (and use them if error during execution) */
690 #ifdef CONFIG_TCC_BCHECK
691 /* compile with built-in memory and bounds checker */
694 #ifdef TCC_TARGET_ARM
695 enum float_abi float_abi
; /* float ABI of the generated code*/
697 int run_test
; /* nth test to run with -dt -run */
699 addr_t text_addr
; /* address of text section */
702 unsigned section_align
; /* section alignment */
704 char *init_symbol
; /* symbols to call at load-time (not used currently) */
705 char *fini_symbol
; /* symbols to call at unload-time (not used currently) */
707 #ifdef TCC_TARGET_I386
708 int seg_size
; /* 32. Can be 16 with i386 assembler (.code16) */
710 #ifdef TCC_TARGET_X86_64
711 int nosse
; /* For -mno-sse support. */
714 /* array of all loaded dlls (including those referenced by loaded dlls) */
715 DLLReference
**loaded_dlls
;
719 char **include_paths
;
720 int nb_include_paths
;
722 char **sysinclude_paths
;
723 int nb_sysinclude_paths
;
726 char **library_paths
;
727 int nb_library_paths
;
729 /* crt?.o object path */
734 char **cmd_include_files
;
735 int nb_cmd_include_files
;
739 void (*error_func
)(void *opaque
, const char *msg
);
740 int error_set_jmp_enabled
;
741 jmp_buf error_jmp_buf
;
744 /* output file for preprocessing (-E) */
747 LINE_MACRO_OUTPUT_FORMAT_GCC
,
748 LINE_MACRO_OUTPUT_FORMAT_NONE
,
749 LINE_MACRO_OUTPUT_FORMAT_STD
,
750 LINE_MACRO_OUTPUT_FORMAT_P10
= 11
751 } Pflag
; /* -P switch */
752 char dflag
; /* -dX value */
754 /* for -MD/-MF: collected dependencies for this compilation */
759 BufferedFile
*include_stack
[INCLUDE_STACK_SIZE
];
760 BufferedFile
**include_stack_ptr
;
762 int ifdef_stack
[IFDEF_STACK_SIZE
];
763 int *ifdef_stack_ptr
;
765 /* included files enclosed with #ifndef MACRO */
766 int cached_includes_hash
[CACHED_INCLUDES_HASH_SIZE
];
767 CachedInclude
**cached_includes
;
768 int nb_cached_includes
;
770 /* #pragma pack stack */
771 int pack_stack
[PACK_STACK_SIZE
];
776 /* inline functions are stored as token lists and compiled last
777 only if referenced */
778 struct InlineFunc
**inline_fns
;
783 int nb_sections
; /* number of sections, including first dummy section */
785 Section
**priv_sections
;
786 int nb_priv_sections
; /* number of private sections */
788 /* got & plt handling */
792 /* temporary dynamic symbol sections (for dll loading) */
793 Section
*dynsymtab_section
;
794 /* exported dynamic symbol section */
796 /* copy of the global symtab_section variable */
798 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
799 struct sym_attr
*sym_attrs
;
801 /* tiny assembler state */
807 unsigned pe_characteristics
;
808 unsigned pe_file_align
;
809 unsigned pe_stack_size
;
810 # ifdef TCC_TARGET_X86_64
818 const char *runtime_main
;
823 /* used by main and tcc_parse_args only */
824 struct filespec
**files
; /* files seen on command line */
825 int nb_files
; /* number thereof */
826 int nb_libraries
; /* number of libs thereof */
828 char *outfile
; /* output filename */
829 int option_r
; /* option -r */
830 int do_bench
; /* option -bench */
831 int gen_deps
; /* option -MD */
832 char *deps_outfile
; /* option -MF */
833 int option_pthread
; /* -pthread option */
844 /* The current value can be: */
845 #define VT_VALMASK 0x003f /* mask for value location, register or: */
846 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
847 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
848 #define VT_LOCAL 0x0032 /* offset on stack */
849 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
850 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
851 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
852 #define VT_LVAL 0x0100 /* var is an lvalue */
853 #define VT_SYM 0x0200 /* a symbol value is added */
854 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
855 char/short stored in integer registers) */
856 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
857 dereferencing value */
858 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
859 bounding function call point is in vc */
860 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
861 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
862 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
863 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
866 #define VT_BTYPE 0x000f /* mask for basic type */
867 #define VT_VOID 0 /* void type */
868 #define VT_BYTE 1 /* signed byte type */
869 #define VT_SHORT 2 /* short type */
870 #define VT_INT 3 /* integer type */
871 #define VT_LLONG 4 /* 64 bit integer */
872 #define VT_PTR 5 /* pointer */
873 #define VT_FUNC 6 /* function type */
874 #define VT_STRUCT 7 /* struct/union definition */
875 #define VT_FLOAT 8 /* IEEE float */
876 #define VT_DOUBLE 9 /* IEEE double */
877 #define VT_LDOUBLE 10 /* IEEE long double */
878 #define VT_BOOL 11 /* ISOC99 boolean type */
879 #define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
880 #define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
882 #define VT_UNSIGNED 0x0010 /* unsigned type */
883 #define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
884 #define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
885 #define VT_BITFIELD 0x0080 /* bitfield modifier */
886 #define VT_CONSTANT 0x0100 /* const modifier */
887 #define VT_VOLATILE 0x0200 /* volatile modifier */
888 #define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
889 #define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
892 #define VT_EXTERN 0x00001000 /* extern definition */
893 #define VT_STATIC 0x00002000 /* static variable */
894 #define VT_TYPEDEF 0x00004000 /* typedef definition */
895 #define VT_INLINE 0x00008000 /* inline definition */
896 /* currently unused: 0x000[1248]0000 */
898 #define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
899 #define VT_STRUCT_MASK (((1 << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
900 #define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
901 #define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
903 #define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
904 #define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
905 #define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
907 #define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
908 #define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
909 #define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
911 /* type mask (except storage) */
912 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
913 #define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
917 /* warning: the following compare tokens depend on i386 asm code */
924 #define TOK_Nset 0x98
925 #define TOK_Nclear 0x99
931 #define TOK_LAND 0xa0
934 #define TOK_MID 0xa3 /* inc/dec, to void constant */
936 #define TOK_UDIV 0xb0 /* unsigned division */
937 #define TOK_UMOD 0xb1 /* unsigned modulo */
938 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
940 /* tokens that carry values (in additional token string space / tokc) --> */
941 #define TOK_CCHAR 0xb3 /* char constant in tokc */
942 #define TOK_LCHAR 0xb4
943 #define TOK_CINT 0xb5 /* number in tokc */
944 #define TOK_CUINT 0xb6 /* unsigned int constant */
945 #define TOK_CLLONG 0xb7 /* long long constant */
946 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
947 #define TOK_STR 0xb9 /* pointer to string in tokc */
948 #define TOK_LSTR 0xba
949 #define TOK_CFLOAT 0xbb /* float constant */
950 #define TOK_CDOUBLE 0xbc /* double constant */
951 #define TOK_CLDOUBLE 0xbd /* long double constant */
952 #define TOK_PPNUM 0xbe /* preprocessor number */
953 #define TOK_PPSTR 0xbf /* preprocessor string */
954 #define TOK_LINENUM 0xc0 /* line number info */
955 #define TOK_TWODOTS 0xa8 /* C++ token ? */
958 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
959 #define TOK_ADDC1 0xc3 /* add with carry generation */
960 #define TOK_ADDC2 0xc4 /* add with carry use */
961 #define TOK_SUBC1 0xc5 /* add with carry generation */
962 #define TOK_SUBC2 0xc6 /* add with carry use */
963 #define TOK_ARROW 0xc7
964 #define TOK_DOTS 0xc8 /* three dots */
965 #define TOK_SHR 0xc9 /* unsigned shift right */
966 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
967 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
968 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
969 #define TOK_PPJOIN 0xcd /* A '##' in the right position to mean pasting */
970 #define TOK_CLONG 0xce /* long constant */
971 #define TOK_CULONG 0xcf /* unsigned long constant */
973 #define TOK_SHL 0x01 /* shift left */
974 #define TOK_SAR 0x02 /* signed shift right */
976 /* assignment operators : normal operator or 0x80 */
977 #define TOK_A_MOD 0xa5
978 #define TOK_A_AND 0xa6
979 #define TOK_A_MUL 0xaa
980 #define TOK_A_ADD 0xab
981 #define TOK_A_SUB 0xad
982 #define TOK_A_DIV 0xaf
983 #define TOK_A_XOR 0xde
984 #define TOK_A_OR 0xfc
985 #define TOK_A_SHL 0x81
986 #define TOK_A_SAR 0x82
988 #define TOK_EOF (-1) /* end of file */
989 #define TOK_LINEFEED 10 /* line feed */
991 /* all identifiers and strings have token above that */
992 #define TOK_IDENT 256
994 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
995 #define TOK_ASM_int TOK_INT
996 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
997 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
998 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
1000 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1001 /* only used for i386 asm opcodes definitions */
1002 #define DEF_BWL(x) \
1003 DEF(TOK_ASM_ ## x ## b, #x "b") \
1004 DEF(TOK_ASM_ ## x ## w, #x "w") \
1005 DEF(TOK_ASM_ ## x ## l, #x "l") \
1006 DEF(TOK_ASM_ ## x, #x)
1008 DEF(TOK_ASM_ ## x ## w, #x "w") \
1009 DEF(TOK_ASM_ ## x ## l, #x "l") \
1010 DEF(TOK_ASM_ ## x, #x)
1011 #ifdef TCC_TARGET_X86_64
1012 # define DEF_BWLQ(x) \
1013 DEF(TOK_ASM_ ## x ## b, #x "b") \
1014 DEF(TOK_ASM_ ## x ## w, #x "w") \
1015 DEF(TOK_ASM_ ## x ## l, #x "l") \
1016 DEF(TOK_ASM_ ## x ## q, #x "q") \
1017 DEF(TOK_ASM_ ## x, #x)
1018 # define DEF_WLQ(x) \
1019 DEF(TOK_ASM_ ## x ## w, #x "w") \
1020 DEF(TOK_ASM_ ## x ## l, #x "l") \
1021 DEF(TOK_ASM_ ## x ## q, #x "q") \
1022 DEF(TOK_ASM_ ## x, #x)
1023 # define DEF_BWLX DEF_BWLQ
1024 # define DEF_WLX DEF_WLQ
1025 /* number of sizes + 1 */
1028 # define DEF_BWLX DEF_BWL
1029 # define DEF_WLX DEF_WL
1030 /* number of sizes + 1 */
1034 #define DEF_FP1(x) \
1035 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
1036 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
1037 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
1038 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
1041 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
1042 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1045 #define DEF_ASMTEST(x,suffix) \
1046 DEF_ASM(x ## o ## suffix) \
1047 DEF_ASM(x ## no ## suffix) \
1048 DEF_ASM(x ## b ## suffix) \
1049 DEF_ASM(x ## c ## suffix) \
1050 DEF_ASM(x ## nae ## suffix) \
1051 DEF_ASM(x ## nb ## suffix) \
1052 DEF_ASM(x ## nc ## suffix) \
1053 DEF_ASM(x ## ae ## suffix) \
1054 DEF_ASM(x ## e ## suffix) \
1055 DEF_ASM(x ## z ## suffix) \
1056 DEF_ASM(x ## ne ## suffix) \
1057 DEF_ASM(x ## nz ## suffix) \
1058 DEF_ASM(x ## be ## suffix) \
1059 DEF_ASM(x ## na ## suffix) \
1060 DEF_ASM(x ## nbe ## suffix) \
1061 DEF_ASM(x ## a ## suffix) \
1062 DEF_ASM(x ## s ## suffix) \
1063 DEF_ASM(x ## ns ## suffix) \
1064 DEF_ASM(x ## p ## suffix) \
1065 DEF_ASM(x ## pe ## suffix) \
1066 DEF_ASM(x ## np ## suffix) \
1067 DEF_ASM(x ## po ## suffix) \
1068 DEF_ASM(x ## l ## suffix) \
1069 DEF_ASM(x ## nge ## suffix) \
1070 DEF_ASM(x ## nl ## suffix) \
1071 DEF_ASM(x ## ge ## suffix) \
1072 DEF_ASM(x ## le ## suffix) \
1073 DEF_ASM(x ## ng ## suffix) \
1074 DEF_ASM(x ## nle ## suffix) \
1075 DEF_ASM(x ## g ## suffix)
1077 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1080 TOK_LAST
= TOK_IDENT
- 1
1081 #define DEF(id, str) ,id
1086 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1087 #define TOK_UIDENT TOK_DEFINE
1089 /* ------------ libtcc.c ------------ */
1091 /* use GNU C extensions */
1092 ST_DATA
int gnu_ext
;
1093 /* use Tiny C extensions */
1094 ST_DATA
int tcc_ext
;
1095 /* XXX: get rid of this ASAP */
1096 ST_DATA
struct TCCState
*tcc_state
;
1098 /* public functions currently used by the tcc main function */
1099 ST_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
);
1100 ST_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
);
1101 ST_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
);
1102 PUB_FUNC
char *tcc_basename(const char *name
);
1103 PUB_FUNC
char *tcc_fileextension (const char *name
);
1106 PUB_FUNC
void tcc_free(void *ptr
);
1107 PUB_FUNC
void *tcc_malloc(unsigned long size
);
1108 PUB_FUNC
void *tcc_mallocz(unsigned long size
);
1109 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
);
1110 PUB_FUNC
char *tcc_strdup(const char *str
);
1112 #define tcc_free(ptr) tcc_free_debug(ptr)
1113 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1114 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1115 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1116 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1117 PUB_FUNC
void tcc_free_debug(void *ptr
);
1118 PUB_FUNC
void *tcc_malloc_debug(unsigned long size
, const char *file
, int line
);
1119 PUB_FUNC
void *tcc_mallocz_debug(unsigned long size
, const char *file
, int line
);
1120 PUB_FUNC
void *tcc_realloc_debug(void *ptr
, unsigned long size
, const char *file
, int line
);
1121 PUB_FUNC
char *tcc_strdup_debug(const char *str
, const char *file
, int line
);
1124 #define free(p) use_tcc_free(p)
1125 #define malloc(s) use_tcc_malloc(s)
1126 #define realloc(p, s) use_tcc_realloc(p, s)
1128 #define strdup(s) use_tcc_strdup(s)
1129 PUB_FUNC
void tcc_memcheck(void);
1130 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...);
1131 PUB_FUNC NORETURN
void tcc_error(const char *fmt
, ...);
1132 PUB_FUNC
void tcc_warning(const char *fmt
, ...);
1134 /* other utilities */
1135 ST_FUNC
void dynarray_add(void *ptab
, int *nb_ptr
, void *data
);
1136 ST_FUNC
void dynarray_reset(void *pp
, int *n
);
1137 ST_INLN
void cstr_ccat(CString
*cstr
, int ch
);
1138 ST_FUNC
void cstr_cat(CString
*cstr
, const char *str
, int len
);
1139 ST_FUNC
void cstr_wccat(CString
*cstr
, int ch
);
1140 ST_FUNC
void cstr_new(CString
*cstr
);
1141 ST_FUNC
void cstr_free(CString
*cstr
);
1142 ST_FUNC
void cstr_reset(CString
*cstr
);
1144 ST_INLN
void sym_free(Sym
*sym
);
1145 ST_FUNC Sym
*sym_push2(Sym
**ps
, int v
, int t
, int c
);
1146 ST_FUNC Sym
*sym_find2(Sym
*s
, int v
);
1147 ST_FUNC Sym
*sym_push(int v
, CType
*type
, int r
, int c
);
1148 ST_FUNC
void sym_pop(Sym
**ptop
, Sym
*b
, int keep
);
1149 ST_INLN Sym
*struct_find(int v
);
1150 ST_INLN Sym
*sym_find(int v
);
1151 ST_FUNC Sym
*global_identifier_push(int v
, int t
, int c
);
1153 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
);
1154 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
);
1155 ST_FUNC
void tcc_close(void);
1157 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
);
1159 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1160 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1161 #define AFF_TYPE_BIN 0x40 /* file to add is binary */
1163 #define AFF_TYPE_NONE 0
1164 #define AFF_TYPE_C 1
1165 #define AFF_TYPE_ASM 2
1166 #define AFF_TYPE_ASMPP 3
1167 #define AFF_TYPE_LIB 4
1168 /* values from tcc_object_type(...) */
1169 #define AFF_BINTYPE_REL 1
1170 #define AFF_BINTYPE_DYN 2
1171 #define AFF_BINTYPE_AR 3
1172 #define AFF_BINTYPE_C67 4
1175 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
);
1176 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
);
1177 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
);
1178 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *f
);
1179 PUB_FUNC
void tcc_print_stats(TCCState
*s
, unsigned total_time
);
1180 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int *argc
, char ***argv
, int optind
);
1182 ST_FUNC
char *normalize_slashes(char *path
);
1185 /* tcc_parse_args return codes: */
1189 #define OPT_PRINT_DIRS 4
1191 #define OPT_IMPDEF 6
1195 /* ------------ tccpp.c ------------ */
1197 ST_DATA
struct BufferedFile
*file
;
1198 ST_DATA
int ch
, tok
;
1199 ST_DATA CValue tokc
;
1200 ST_DATA
const int *macro_ptr
;
1201 ST_DATA
int parse_flags
;
1202 ST_DATA
int tok_flags
;
1203 ST_DATA CString tokcstr
; /* current parsed string, if any */
1205 /* display benchmark infos */
1206 ST_DATA
int total_lines
;
1207 ST_DATA
int total_bytes
;
1208 ST_DATA
int tok_ident
;
1209 ST_DATA TokenSym
**table_ident
;
1211 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1212 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1213 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1214 #define TOK_FLAG_EOF 0x0008 /* end of file */
1216 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1217 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1218 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1219 token. line feed is also
1221 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1222 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1223 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1224 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1226 /* isidnum_table flags: */
1231 ST_FUNC TokenSym
*tok_alloc(const char *str
, int len
);
1232 ST_FUNC
const char *get_tok_str(int v
, CValue
*cv
);
1233 ST_FUNC
void begin_macro(TokenString
*str
, int alloc
);
1234 ST_FUNC
void end_macro(void);
1235 ST_FUNC
int set_idnum(int c
, int val
);
1236 ST_INLN
void tok_str_new(TokenString
*s
);
1237 ST_FUNC TokenString
*tok_str_alloc(void);
1238 ST_FUNC
void tok_str_free(TokenString
*s
);
1239 ST_FUNC
void tok_str_free_str(int *str
);
1240 ST_FUNC
void tok_str_add(TokenString
*s
, int t
);
1241 ST_FUNC
void tok_str_add_tok(TokenString
*s
);
1242 ST_INLN
void define_push(int v
, int macro_type
, int *str
, Sym
*first_arg
);
1243 ST_FUNC
void define_undef(Sym
*s
);
1244 ST_INLN Sym
*define_find(int v
);
1245 ST_FUNC
void free_defines(Sym
*b
);
1246 ST_FUNC Sym
*label_find(int v
);
1247 ST_FUNC Sym
*label_push(Sym
**ptop
, int v
, int flags
);
1248 ST_FUNC
void label_pop(Sym
**ptop
, Sym
*slast
, int keep
);
1249 ST_FUNC
void parse_define(void);
1250 ST_FUNC
void preprocess(int is_bof
);
1251 ST_FUNC
void next_nomacro(void);
1252 ST_FUNC
void next(void);
1253 ST_INLN
void unget_tok(int last_tok
);
1254 ST_FUNC
void preprocess_start(TCCState
*s1
, int is_asm
);
1255 ST_FUNC
void preprocess_end(TCCState
*s1
);
1256 ST_FUNC
void tccpp_new(TCCState
*s
);
1257 ST_FUNC
void tccpp_delete(TCCState
*s
);
1258 ST_FUNC
int tcc_preprocess(TCCState
*s1
);
1259 ST_FUNC
void skip(int c
);
1260 ST_FUNC NORETURN
void expect(const char *msg
);
1262 /* space excluding newline */
1263 static inline int is_space(int ch
) {
1264 return ch
== ' ' || ch
== '\t' || ch
== '\v' || ch
== '\f' || ch
== '\r';
1266 static inline int isid(int c
) {
1267 return (c
>= 'a' && c
<= 'z') || (c
>= 'A' && c
<= 'Z') || c
== '_';
1269 static inline int isnum(int c
) {
1270 return c
>= '0' && c
<= '9';
1272 static inline int isoct(int c
) {
1273 return c
>= '0' && c
<= '7';
1275 static inline int toup(int c
) {
1276 return (c
>= 'a' && c
<= 'z') ? c
- 'a' + 'A' : c
;
1279 /* ------------ tccgen.c ------------ */
1281 #define SYM_POOL_NB (8192 / sizeof(Sym))
1282 ST_DATA Sym
*sym_free_first
;
1283 ST_DATA
void **sym_pools
;
1284 ST_DATA
int nb_sym_pools
;
1286 ST_DATA Sym
*global_stack
;
1287 ST_DATA Sym
*local_stack
;
1288 ST_DATA Sym
*local_label_stack
;
1289 ST_DATA Sym
*global_label_stack
;
1290 ST_DATA Sym
*define_stack
;
1291 ST_DATA CType char_pointer_type
, func_old_type
, int_type
, size_type
;
1292 ST_DATA SValue __vstack
[1+/*to make bcheck happy*/ VSTACK_SIZE
], *vtop
, *pvtop
;
1293 #define vstack (__vstack + 1)
1294 ST_DATA
int rsym
, anon_sym
, ind
, loc
;
1296 ST_DATA
int const_wanted
; /* true if constant wanted */
1297 ST_DATA
int nocode_wanted
; /* true if no code generation wanted for an expression */
1298 ST_DATA
int global_expr
; /* true if compound literals must be allocated globally (used during initializers parsing */
1299 ST_DATA CType func_vt
; /* current function return type (used by return instruction) */
1300 ST_DATA
int func_var
; /* true if current function is variadic */
1301 ST_DATA
int func_vc
;
1302 ST_DATA
int last_line_num
, last_ind
, func_ind
; /* debug last line number and pc */
1303 ST_DATA
const char *funcname
;
1304 ST_DATA
int g_debug
;
1306 ST_FUNC
void tcc_debug_start(TCCState
*s1
);
1307 ST_FUNC
void tcc_debug_end(TCCState
*s1
);
1308 ST_FUNC
void tcc_debug_funcstart(TCCState
*s1
, Sym
*sym
);
1309 ST_FUNC
void tcc_debug_funcend(TCCState
*s1
, int size
);
1310 ST_FUNC
void tcc_debug_line(TCCState
*s1
);
1312 ST_FUNC
int tccgen_compile(TCCState
*s1
);
1313 ST_FUNC
void free_inline_functions(TCCState
*s
);
1314 ST_FUNC
void check_vstack(void);
1316 ST_INLN
int is_float(int t
);
1317 ST_FUNC
int ieee_finite(double d
);
1318 ST_FUNC
void test_lvalue(void);
1319 ST_FUNC
void vpushi(int v
);
1320 ST_FUNC Sym
*external_global_sym(int v
, CType
*type
, int r
);
1321 ST_FUNC
void vset(CType
*type
, int r
, int v
);
1322 ST_FUNC
void vswap(void);
1323 ST_FUNC
void vpush_global_sym(CType
*type
, int v
);
1324 ST_FUNC
void vrote(SValue
*e
, int n
);
1325 ST_FUNC
void vrott(int n
);
1326 ST_FUNC
void vrotb(int n
);
1327 #ifdef TCC_TARGET_ARM
1328 ST_FUNC
int get_reg_ex(int rc
, int rc2
);
1329 ST_FUNC
void lexpand_nr(void);
1331 ST_FUNC
void vpushv(SValue
*v
);
1332 ST_FUNC
void save_reg(int r
);
1333 ST_FUNC
void save_reg_upstack(int r
, int n
);
1334 ST_FUNC
int get_reg(int rc
);
1335 ST_FUNC
void save_regs(int n
);
1336 ST_FUNC
void gaddrof(void);
1337 ST_FUNC
int gv(int rc
);
1338 ST_FUNC
void gv2(int rc1
, int rc2
);
1339 ST_FUNC
void vpop(void);
1340 ST_FUNC
void gen_op(int op
);
1341 ST_FUNC
int type_size(CType
*type
, int *a
);
1342 ST_FUNC
void mk_pointer(CType
*type
);
1343 ST_FUNC
void vstore(void);
1344 ST_FUNC
void inc(int post
, int c
);
1345 ST_FUNC
void parse_mult_str (CString
*astr
, const char *msg
);
1346 ST_FUNC
void parse_asm_str(CString
*astr
);
1347 ST_FUNC
int lvalue_type(int t
);
1348 ST_FUNC
void indir(void);
1349 ST_FUNC
void unary(void);
1350 ST_FUNC
void expr_prod(void);
1351 ST_FUNC
void expr_sum(void);
1352 ST_FUNC
void gexpr(void);
1353 ST_FUNC
int expr_const(void);
1354 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1355 ST_FUNC Sym
*get_sym_ref(CType
*type
, Section
*sec
, unsigned long offset
, unsigned long size
);
1357 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1358 ST_FUNC
int classify_x86_64_va_arg(CType
*ty
);
1361 /* ------------ tccelf.c ------------ */
1363 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1364 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1365 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1367 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1370 unsigned int n_strx
; /* index into string table of name */
1371 unsigned char n_type
; /* type of symbol */
1372 unsigned char n_other
; /* misc info (usually empty) */
1373 unsigned short n_desc
; /* description field */
1374 unsigned int n_value
; /* value of symbol */
1377 ST_DATA Section
*text_section
, *data_section
, *bss_section
; /* predefined sections */
1378 ST_DATA Section
*common_section
;
1379 ST_DATA Section
*cur_text_section
; /* current section where function code is generated */
1380 #ifdef CONFIG_TCC_ASM
1381 ST_DATA Section
*last_text_section
; /* to handle .previous asm directive */
1383 #ifdef CONFIG_TCC_BCHECK
1384 /* bound check related sections */
1385 ST_DATA Section
*bounds_section
; /* contains global data bound description */
1386 ST_DATA Section
*lbounds_section
; /* contains local data bound description */
1387 ST_FUNC
void tccelf_bounds_new(TCCState
*s
);
1389 /* symbol sections */
1390 ST_DATA Section
*symtab_section
, *strtab_section
;
1391 /* debug sections */
1392 ST_DATA Section
*stab_section
, *stabstr_section
;
1394 ST_FUNC
void tccelf_new(TCCState
*s
);
1395 ST_FUNC
void tccelf_delete(TCCState
*s
);
1396 ST_FUNC
void tccelf_stab_new(TCCState
*s
);
1398 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
);
1399 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
);
1400 ST_FUNC
size_t section_add(Section
*sec
, addr_t size
, int align
);
1401 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
);
1402 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
);
1403 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
);
1404 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
);
1406 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
, addr_t value
, unsigned long size
, int can_add_underscore
);
1407 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
, addr_t value
, unsigned long size
);
1409 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
);
1411 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
, addr_t addend
);
1413 ST_FUNC
int put_elf_str(Section
*s
, const char *sym
);
1414 ST_FUNC
int put_elf_sym(Section
*s
, addr_t value
, unsigned long size
, int info
, int other
, int shndx
, const char *name
);
1415 ST_FUNC
int set_elf_sym(Section
*s
, addr_t value
, unsigned long size
, int info
, int other
, int shndx
, const char *name
);
1416 ST_FUNC
int find_elf_sym(Section
*s
, const char *name
);
1417 ST_FUNC
void put_elf_reloc(Section
*symtab
, Section
*s
, unsigned long offset
, int type
, int symbol
);
1418 ST_FUNC
void put_elf_reloca(Section
*symtab
, Section
*s
, unsigned long offset
, int type
, int symbol
, addr_t addend
);
1420 ST_FUNC
void put_stabs(const char *str
, int type
, int other
, int desc
, unsigned long value
);
1421 ST_FUNC
void put_stabs_r(const char *str
, int type
, int other
, int desc
, unsigned long value
, Section
*sec
, int sym_index
);
1422 ST_FUNC
void put_stabn(int type
, int other
, int desc
, int value
);
1423 ST_FUNC
void put_stabd(int type
, int other
, int desc
);
1425 ST_FUNC
void relocate_common_syms(void);
1426 ST_FUNC
void relocate_syms(TCCState
*s1
, Section
*symtab
, int do_resolve
);
1427 ST_FUNC
void relocate_section(TCCState
*s1
, Section
*s
);
1429 ST_FUNC
void tcc_add_linker_symbols(TCCState
*s1
);
1430 ST_FUNC
int tcc_object_type(int fd
, ElfW(Ehdr
) *h
);
1431 ST_FUNC
int tcc_load_object_file(TCCState
*s1
, int fd
, unsigned long file_offset
);
1432 ST_FUNC
int tcc_load_archive(TCCState
*s1
, int fd
);
1433 ST_FUNC
void tcc_add_bcheck(TCCState
*s1
);
1434 ST_FUNC
void tcc_add_runtime(TCCState
*s1
);
1436 ST_FUNC
void build_got_entries(TCCState
*s1
);
1437 ST_FUNC
struct sym_attr
*get_sym_attr(TCCState
*s1
, int index
, int alloc
);
1438 ST_FUNC
void squeeze_multi_relocs(Section
*sec
, size_t oldrelocoffset
);
1440 ST_FUNC addr_t
get_elf_sym_addr(TCCState
*s
, const char *name
, int err
);
1441 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1442 ST_FUNC
void *tcc_get_symbol_err(TCCState
*s
, const char *name
);
1445 #ifndef TCC_TARGET_PE
1446 ST_FUNC
int tcc_load_dll(TCCState
*s1
, int fd
, const char *filename
, int level
);
1447 ST_FUNC
int tcc_load_ldscript(TCCState
*s1
);
1448 ST_FUNC
uint8_t *parse_comment(uint8_t *p
);
1449 ST_FUNC
void minp(void);
1450 ST_INLN
void inp(void);
1451 ST_FUNC
int handle_eob(void);
1454 /* ------------ xxx-link.c ------------ */
1456 /* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1457 that unknown relocation don't create a GOT or PLT entry */
1459 NO_GOTPLT_ENTRY
, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1460 BUILD_GOT_ONLY
, /* only build GOT (eg. TPOFF relocs) */
1461 AUTO_GOTPLT_ENTRY
, /* generate if sym is UNDEF */
1462 ALWAYS_GOTPLT_ENTRY
/* always generate (eg. PLTOFF relocs) */
1465 ST_FUNC
int code_reloc (int reloc_type
);
1466 ST_FUNC
int gotplt_entry_type (int reloc_type
);
1467 ST_FUNC
unsigned create_plt_entry(TCCState
*s1
, unsigned got_offset
, struct sym_attr
*attr
);
1468 ST_FUNC
void relocate_init(Section
*sr
);
1469 ST_FUNC
void relocate(TCCState
*s1
, ElfW_Rel
*rel
, int type
, unsigned char *ptr
, addr_t addr
, addr_t val
);
1470 ST_FUNC
void relocate_plt(TCCState
*s1
);
1472 /* ------------ xxx-gen.c ------------ */
1474 ST_DATA
const int reg_classes
[NB_REGS
];
1476 ST_FUNC
void gsym_addr(int t
, int a
);
1477 ST_FUNC
void gsym(int t
);
1478 ST_FUNC
void load(int r
, SValue
*sv
);
1479 ST_FUNC
void store(int r
, SValue
*v
);
1480 ST_FUNC
int gfunc_sret(CType
*vt
, int variadic
, CType
*ret
, int *align
, int *regsize
);
1481 ST_FUNC
void gfunc_call(int nb_args
);
1482 ST_FUNC
void gfunc_prolog(CType
*func_type
);
1483 ST_FUNC
void gfunc_epilog(void);
1484 ST_FUNC
int gjmp(int t
);
1485 ST_FUNC
void gjmp_addr(int a
);
1486 ST_FUNC
int gtst(int inv
, int t
);
1487 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1488 ST_FUNC
void gtst_addr(int inv
, int a
);
1490 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1492 ST_FUNC
void gen_opi(int op
);
1493 ST_FUNC
void gen_opf(int op
);
1494 ST_FUNC
void gen_cvt_ftoi(int t
);
1495 ST_FUNC
void gen_cvt_ftof(int t
);
1496 ST_FUNC
void ggoto(void);
1497 #ifndef TCC_TARGET_C67
1498 ST_FUNC
void o(unsigned int c
);
1500 #ifndef TCC_TARGET_ARM
1501 ST_FUNC
void gen_cvt_itof(int t
);
1503 ST_FUNC
void gen_vla_sp_save(int addr
);
1504 ST_FUNC
void gen_vla_sp_restore(int addr
);
1505 ST_FUNC
void gen_vla_alloc(CType
*type
, int align
);
1507 static inline uint16_t read16le(unsigned char *p
) {
1508 return p
[0] | (uint16_t)p
[1] << 8;
1510 static inline void write16le(unsigned char *p
, uint16_t x
) {
1511 p
[0] = x
& 255; p
[1] = x
>> 8 & 255;
1513 static inline uint32_t read32le(unsigned char *p
) {
1514 return read16le(p
) | (uint32_t)read16le(p
+ 2) << 16;
1516 static inline void write32le(unsigned char *p
, uint32_t x
) {
1517 write16le(p
, x
); write16le(p
+ 2, x
>> 16);
1519 static inline void add32le(unsigned char *p
, int32_t x
) {
1520 write32le(p
, read32le(p
) + x
);
1522 static inline uint64_t read64le(unsigned char *p
) {
1523 return read32le(p
) | (uint64_t)read32le(p
+ 4) << 32;
1525 static inline void write64le(unsigned char *p
, uint64_t x
) {
1526 write32le(p
, x
); write32le(p
+ 4, x
>> 32);
1528 static inline void add64le(unsigned char *p
, int64_t x
) {
1529 write64le(p
, read64le(p
) + x
);
1532 /* ------------ i386-gen.c ------------ */
1533 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1534 ST_FUNC
void g(int c
);
1535 ST_FUNC
void gen_le16(int c
);
1536 ST_FUNC
void gen_le32(int c
);
1537 ST_FUNC
void gen_addr32(int r
, Sym
*sym
, int c
);
1538 ST_FUNC
void gen_addrpc32(int r
, Sym
*sym
, int c
);
1541 #ifdef CONFIG_TCC_BCHECK
1542 ST_FUNC
void gen_bounded_ptr_add(void);
1543 ST_FUNC
void gen_bounded_ptr_deref(void);
1546 /* ------------ x86_64-gen.c ------------ */
1547 #ifdef TCC_TARGET_X86_64
1548 ST_FUNC
void gen_addr64(int r
, Sym
*sym
, int64_t c
);
1549 ST_FUNC
void gen_opl(int op
);
1552 /* ------------ arm-gen.c ------------ */
1553 #ifdef TCC_TARGET_ARM
1554 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1555 PUB_FUNC
const char *default_elfinterp(struct TCCState
*s
);
1557 ST_FUNC
void arm_init(struct TCCState
*s
);
1558 ST_FUNC
void gen_cvt_itof1(int t
);
1561 /* ------------ arm64-gen.c ------------ */
1562 #ifdef TCC_TARGET_ARM64
1563 ST_FUNC
void gen_cvt_sxtw(void);
1564 ST_FUNC
void gen_opl(int op
);
1565 ST_FUNC
void gfunc_return(CType
*func_type
);
1566 ST_FUNC
void gen_va_start(void);
1567 ST_FUNC
void gen_va_arg(CType
*t
);
1568 ST_FUNC
void gen_clear_cache(void);
1571 /* ------------ c67-gen.c ------------ */
1572 #ifdef TCC_TARGET_C67
1575 /* ------------ tcccoff.c ------------ */
1577 #ifdef TCC_TARGET_COFF
1578 ST_FUNC
int tcc_output_coff(TCCState
*s1
, FILE *f
);
1579 ST_FUNC
int tcc_load_coff(TCCState
* s1
, int fd
);
1582 /* ------------ tccasm.c ------------ */
1583 ST_FUNC
void asm_instr(void);
1584 ST_FUNC
void asm_global_instr(void);
1585 #ifdef CONFIG_TCC_ASM
1586 ST_FUNC
int find_constraint(ASMOperand
*operands
, int nb_operands
, const char *name
, const char **pp
);
1587 ST_FUNC Sym
* get_asm_sym(int name
, Sym
*csym
);
1588 ST_FUNC
void asm_expr(TCCState
*s1
, ExprValue
*pe
);
1589 ST_FUNC
int asm_int_expr(TCCState
*s1
);
1590 ST_FUNC
int tcc_assemble(TCCState
*s1
, int do_preprocess
);
1591 /* ------------ i386-asm.c ------------ */
1592 ST_FUNC
void gen_expr32(ExprValue
*pe
);
1593 #ifdef TCC_TARGET_X86_64
1594 ST_FUNC
void gen_expr64(ExprValue
*pe
);
1596 ST_FUNC
void asm_opcode(TCCState
*s1
, int opcode
);
1597 ST_FUNC
int asm_parse_regvar(int t
);
1598 ST_FUNC
void asm_compute_constraints(ASMOperand
*operands
, int nb_operands
, int nb_outputs
, const uint8_t *clobber_regs
, int *pout_reg
);
1599 ST_FUNC
void subst_asm_operand(CString
*add_str
, SValue
*sv
, int modifier
);
1600 ST_FUNC
void asm_gen_code(ASMOperand
*operands
, int nb_operands
, int nb_outputs
, int is_output
, uint8_t *clobber_regs
, int out_reg
);
1601 ST_FUNC
void asm_clobber(uint8_t *clobber_regs
, const char *str
);
1604 /* ------------ tccpe.c -------------- */
1605 #ifdef TCC_TARGET_PE
1606 ST_FUNC
int pe_load_file(struct TCCState
*s1
, const char *filename
, int fd
);
1607 ST_FUNC
int pe_output_file(TCCState
* s1
, const char *filename
);
1608 ST_FUNC
int pe_putimport(TCCState
*s1
, int dllindex
, const char *name
, addr_t value
);
1609 #ifndef TCC_TARGET_ARM
1610 ST_FUNC SValue
*pe_getimport(SValue
*sv
, SValue
*v2
);
1612 #ifdef TCC_TARGET_X86_64
1613 ST_FUNC
void pe_add_unwind_data(unsigned start
, unsigned end
, unsigned stack
);
1615 PUB_FUNC
int tcc_get_dllexports(const char *filename
, char **pp
);
1616 /* symbol properties stored in Elf32_Sym->st_other */
1617 # define ST_PE_EXPORT 0x10
1618 # define ST_PE_IMPORT 0x20
1619 # define ST_PE_STDCALL 0x40
1622 /* ------------ tccrun.c ----------------- */
1623 #ifdef TCC_IS_NATIVE
1624 #ifdef CONFIG_TCC_STATIC
1625 #define RTLD_LAZY 0x001
1626 #define RTLD_NOW 0x002
1627 #define RTLD_GLOBAL 0x100
1628 #define RTLD_DEFAULT NULL
1629 /* dummy function for profiling */
1630 ST_FUNC
void *dlopen(const char *filename
, int flag
);
1631 ST_FUNC
void dlclose(void *p
);
1632 ST_FUNC
const char *dlerror(void);
1633 ST_FUNC
void *dlsym(void *handle
, const char *symbol
);
1635 #ifdef CONFIG_TCC_BACKTRACE
1636 ST_DATA
int rt_num_callers
;
1637 ST_DATA
const char **rt_bound_error_msg
;
1638 ST_DATA
void *rt_prog_main
;
1639 ST_FUNC
void tcc_set_num_callers(int n
);
1641 ST_FUNC
void tcc_run_free(TCCState
*s1
);
1644 /* ------------ tcctools.c ----------------- */
1645 #if 0 /* included in tcc.c */
1646 ST_FUNC
int tcc_tool_ar(TCCState
*s
, int argc
, char **argv
);
1647 #ifdef TCC_TARGET_PE
1648 ST_FUNC
int tcc_tool_impdef(TCCState
*s
, int argc
, char **argv
);
1650 ST_FUNC
void tcc_tool_cross(TCCState
*s
, char **argv
, int option
);
1651 ST_FUNC
void gen_makedeps(TCCState
*s
, const char *target
, const char *filename
);
1654 /********************************************************/
1657 #define ST_DATA static
1661 /********************************************************/