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
);
47 #else /* on _WIN32: */
49 # include <io.h> /* open, close etc. */
50 # include <direct.h> /* getcwd */
54 # define inline __inline
55 # define inp next_inp /* inp is an intrinsic on msvc */
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
69 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
70 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
71 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
72 # pragma warning (disable : 4018) // signed/unsigned mismatch
73 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
75 # undef CONFIG_TCC_STATIC
83 # define NORETURN __attribute__ ((noreturn))
84 #elif defined _MSC_VER
85 # define NORETURN __declspec(noreturn)
91 # define IS_DIRSEP(c) (c == '/' || c == '\\')
92 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
93 # define PATHCMP stricmp
95 # define IS_DIRSEP(c) (c == '/')
96 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
97 # define PATHCMP strcmp
106 /* -------------------------------------------- */
109 /* #define PARSE_DEBUG */
110 /* preprocessor debug */
111 /* #define PP_DEBUG */
112 /* include file debug */
113 /* #define INC_DEBUG */
114 /* memory leak debug */
115 /* #define MEM_DEBUG */
116 /* assembler debug */
117 /* #define ASM_DEBUG */
119 /* target selection */
120 /* #define TCC_TARGET_I386 *//* i386 code generator */
121 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
122 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
123 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
124 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
126 /* default target is I386 */
127 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
128 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
129 !defined(TCC_TARGET_X86_64)
130 #define TCC_TARGET_I386
133 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
134 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
135 !defined(CONFIG_USE_LIBGCC)
136 #define CONFIG_TCC_BCHECK /* enable bound checking code */
139 /* define it to include assembler support */
140 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
141 !defined(TCC_TARGET_C67)
142 #define CONFIG_TCC_ASM
145 /* object format selection */
146 #if defined(TCC_TARGET_C67)
147 #define TCC_TARGET_COFF
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
167 /* ------------ path configuration ------------ */
169 #ifndef CONFIG_SYSROOT
170 # define CONFIG_SYSROOT ""
172 #ifndef CONFIG_TCCDIR
173 # define CONFIG_TCCDIR "."
176 # define CONFIG_LDDIR "lib"
178 #ifdef CONFIG_TRIPLET
179 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
180 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
182 # define USE_TRIPLET(s) s
183 # define ALSO_TRIPLET(s) s
186 /* path to find crt1.o, crti.o and crtn.o */
187 #ifndef CONFIG_TCC_CRTPREFIX
188 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
191 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
193 /* system include paths */
194 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
195 # ifdef TCC_TARGET_PE
196 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
198 # define CONFIG_TCC_SYSINCLUDEPATHS \
200 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
201 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
205 /* library search paths */
206 #ifndef CONFIG_TCC_LIBPATHS
207 # ifdef TCC_TARGET_PE
208 # define CONFIG_TCC_LIBPATHS "{B}/lib"
210 # define CONFIG_TCC_LIBPATHS \
211 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
212 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
213 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
217 /* name of ELF interpreter */
218 #ifndef CONFIG_TCC_ELFINTERP
219 # if defined __FreeBSD__
220 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
221 # elif defined __FreeBSD_kernel__
222 # if defined(TCC_TARGET_X86_64)
223 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
225 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
227 # elif defined __DragonFly__
228 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
229 # elif defined __NetBSD__
230 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
231 # elif defined __GNU__
232 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
233 # elif defined(TCC_TARGET_PE)
234 # define CONFIG_TCC_ELFINTERP "-"
235 # elif defined(TCC_UCLIBC)
236 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
237 # elif defined TCC_TARGET_ARM64
238 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
239 # elif defined(TCC_TARGET_X86_64)
240 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
241 # elif !defined(TCC_ARM_EABI)
242 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
246 /* var elf_interp dans *-gen.c */
247 #ifdef CONFIG_TCC_ELFINTERP
248 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
250 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
253 /* target specific subdir for libtcc1.a */
255 # define TCC_ARCH_DIR ""
258 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
259 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
261 /* -------------------------------------------- */
267 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
268 # define ELFCLASSW ELFCLASS64
269 # define ElfW(type) Elf##64##_##type
270 # define ELFW(type) ELF##64##_##type
271 # define ElfW_Rel ElfW(Rela)
272 # define SHT_RELX SHT_RELA
273 # define REL_SECTION_FMT ".rela%s"
275 # define ELFCLASSW ELFCLASS32
276 # define ElfW(type) Elf##32##_##type
277 # define ELFW(type) ELF##32##_##type
278 # define ElfW_Rel ElfW(Rel)
279 # define SHT_RELX SHT_REL
280 # define REL_SECTION_FMT ".rel%s"
282 /* target address type */
283 #define addr_t ElfW(Addr)
285 /* -------------------------------------------- */
286 /* include the target specific definitions */
288 #define TARGET_DEFS_ONLY
289 #ifdef TCC_TARGET_I386
290 # include "i386-gen.c"
291 # include "i386-link.c"
293 #ifdef TCC_TARGET_X86_64
294 # include "x86_64-gen.c"
295 # include "x86_64-link.c"
297 #ifdef TCC_TARGET_ARM
298 # include "arm-gen.c"
299 # include "arm-link.c"
301 #ifdef TCC_TARGET_ARM64
302 # include "arm64-gen.c"
303 # include "arm64-link.c"
305 #ifdef TCC_TARGET_C67
307 # include "c67-gen.c"
308 # include "c67-link.c"
310 #undef TARGET_DEFS_ONLY
312 /* -------------------------------------------- */
314 #define INCLUDE_STACK_SIZE 32
315 #define IFDEF_STACK_SIZE 64
316 #define VSTACK_SIZE 256
317 #define STRING_MAX_SIZE 1024
318 #define TOKSTR_MAX_SIZE 256
319 #define PACK_STACK_SIZE 8
321 #define TOK_HASH_SIZE 16384 /* must be a power of two */
322 #define TOK_ALLOC_INCR 512 /* must be a power of two */
323 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
325 /* token symbol management */
326 typedef struct TokenSym
{
327 struct TokenSym
*hash_next
;
328 struct Sym
*sym_define
; /* direct pointer to define */
329 struct Sym
*sym_label
; /* direct pointer to label */
330 struct Sym
*sym_struct
; /* direct pointer to structure */
331 struct Sym
*sym_identifier
; /* direct pointer to identifier */
332 int tok
; /* token number */
338 typedef unsigned short nwchar_t
;
340 typedef int nwchar_t
;
343 typedef struct CString
{
344 int size
; /* size in bytes */
345 void *data
; /* either 'char *' or 'nwchar_t *' */
349 /* type definition */
350 typedef struct CType
{
356 typedef union CValue
{
365 int tab
[LDOUBLE_SIZE
/4];
369 typedef struct SValue
{
370 CType type
; /* type */
371 unsigned short r
; /* register + flags */
372 unsigned short r2
; /* second register, used for 'long long'
373 type. If not used, set to VT_CONST */
374 CValue c
; /* constant, if VT_CONST */
375 struct Sym
*sym
; /* symbol, if (VT_SYM | VT_CONST) */
380 func_call
: 3, /* calling convention (0..5), see below */
381 aligned
: 5, /* alignement (0..16) */
390 fill
: 8; // 8 bits left to fit well in union below
393 /* GNUC attribute definition */
394 typedef struct AttributeDef
{
396 struct Section
*section
;
397 int alias_target
; /* token */
398 int asm_label
; /* associated asm label */
401 /* symbol management */
403 int v
; /* symbol token */
405 int asm_label
; /* associated asm label */
406 int scope
; /* scope level for locals */
409 long r
; /* associated register */
413 long c
; /* associated number */
414 int *d
; /* define token stream */
416 CType type
; /* associated type */
418 struct Sym
*next
; /* next related symbol */
419 long jnext
; /* next jump label */
421 struct Sym
*prev
; /* prev symbol in stack */
422 struct Sym
*prev_tok
; /* previous symbol for this token */
425 /* section definition */
426 /* XXX: use directly ELF structure for parameters ? */
427 /* special flag to indicate that the section should not be linked to
429 #define SHF_PRIVATE 0x80000000
431 /* special flag, too */
432 #define SECTION_ABS ((void *)1)
434 typedef struct Section
{
435 unsigned long data_offset
; /* current data offset */
436 unsigned char *data
; /* section data */
437 unsigned long data_allocated
; /* used for realloc() handling */
438 int sh_name
; /* elf section name (only used during output) */
439 int sh_num
; /* elf section number */
440 int sh_type
; /* elf section type */
441 int sh_flags
; /* elf section flags */
442 int sh_info
; /* elf section info */
443 int sh_addralign
; /* elf section alignment */
444 int sh_entsize
; /* elf entry size */
445 unsigned long sh_size
; /* section size (only used during output) */
446 addr_t sh_addr
; /* address at which the section is relocated */
447 unsigned long sh_offset
; /* file offset */
448 int nb_hashed_syms
; /* used to resize the hash table */
449 struct Section
*link
; /* link to another section */
450 struct Section
*reloc
; /* corresponding section for relocation, if any */
451 struct Section
*hash
; /* hash table for symbols */
452 struct Section
*next
;
453 char name
[1]; /* section name */
456 typedef struct DLLReference
{
462 /* -------------------------------------------------- */
464 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
465 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
466 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
468 /* stored in 'Sym.c' field */
469 #define FUNC_NEW 1 /* ansi function prototype */
470 #define FUNC_OLD 2 /* old function prototype */
471 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
473 /* stored in 'Sym.r' field */
474 #define FUNC_CDECL 0 /* standard c call */
475 #define FUNC_STDCALL 1 /* pascal c call */
476 #define FUNC_FASTCALL1 2 /* first param in %eax */
477 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
478 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
479 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
481 /* field 'Sym.t' for macros */
482 #define MACRO_OBJ 0 /* object like macro */
483 #define MACRO_FUNC 1 /* function like macro */
485 /* field 'Sym.r' for C labels */
486 #define LABEL_DEFINED 0 /* label is defined */
487 #define LABEL_FORWARD 1 /* label is forward defined */
488 #define LABEL_DECLARED 2 /* label is declared but never used */
490 /* type_decl() types */
491 #define TYPE_ABSTRACT 1 /* type without variable */
492 #define TYPE_DIRECT 2 /* type with variable */
494 #define IO_BUF_SIZE 8192
496 typedef struct BufferedFile
{
500 struct BufferedFile
*prev
;
501 int line_num
; /* current line number - here to simplify code */
502 int line_ref
; /* tcc -E: last printed line */
503 int ifndef_macro
; /* #ifndef macro / #endif search */
504 int ifndef_macro_saved
; /* saved ifndef_macro */
505 int *ifdef_stack_ptr
; /* ifdef_stack value at the start of the file */
506 int include_next_index
; /* next search path */
507 char filename
[1024]; /* filename */
508 unsigned char unget
[4];
509 unsigned char buffer
[1]; /* extra size for CH_EOB char */
512 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
513 #define CH_EOF (-1) /* end of file */
515 /* parsing state (used to save parser state to reparse part of the
516 source several times) */
517 typedef struct ParseState
{
518 const int *macro_ptr
;
524 /* used to record tokens */
525 typedef struct TokenString
{
530 /* used to chain token-strings with begin/end_macro() */
531 struct TokenString
*prev
;
536 /* inline functions */
537 typedef struct InlineFunc
{
538 TokenString
*func_str
;
543 /* include file cache, used to find files faster and also to eliminate
544 inclusion if the include file is protected by #ifndef ... #endif */
545 typedef struct CachedInclude
{
548 int hash_next
; /* -1 if none */
549 char filename
[1]; /* path specified in #include */
552 #define CACHED_INCLUDES_HASH_SIZE 32
554 #ifdef CONFIG_TCC_ASM
555 typedef struct ExprValue
{
560 #define MAX_ASM_OPERANDS 30
561 typedef struct ASMOperand
{
562 int id
; /* GCC 3 optionnal identifier (0 if number only supported */
564 char asm_str
[16]; /* computed asm string for operand */
565 SValue
*vt
; /* C value of the expression */
566 int ref_index
; /* if >= 0, gives reference to a output constraint */
567 int input_index
; /* if >= 0, gives reference to an input constraint */
568 int priority
; /* priority, used to assign registers */
569 int reg
; /* if >= 0, register number used for this operand */
570 int is_llong
; /* true if double register value */
571 int is_memory
; /* true if memory operand */
572 int is_rw
; /* for '+' modifier */
576 /* extra symbol attributes (not in symbol table) */
582 #ifdef TCC_TARGET_ARM
583 unsigned char plt_thumb_stub
:1;
589 int verbose
; /* if true, display some information during compilation */
590 int nostdinc
; /* if true, no standard headers are added */
591 int nostdlib
; /* if true, no standard libraries are added */
592 int nocommon
; /* if true, do not use common symbols for .bss data */
593 int static_link
; /* if true, static linking is performed */
594 int rdynamic
; /* if true, all symbols are exported */
595 int symbolic
; /* if true, resolve symbols in the current module first */
596 int alacarte_link
; /* if true, only link in referenced objects from archive */
598 char *tcc_lib_path
; /* CONFIG_TCCDIR or -B option */
599 char *soname
; /* as specified on the command line (-soname) */
600 char *rpath
; /* as specified on the command line (-Wl,-rpath=) */
602 /* output type, see TCC_OUTPUT_XXX */
604 /* output format, see TCC_OUTPUT_FORMAT_xxx */
607 /* C language options */
608 int char_is_unsigned
;
609 int leading_underscore
;
610 int ms_extensions
; /* allow nested named struct w/o identifier behave like unnamed */
611 int old_struct_init_code
; /* use old algorithm to init array in struct when there is no '{' used.
612 Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
613 int dollars_in_identifiers
; /* allows '$' char in indentifiers */
614 int ms_bitfields
; /* if true, emulate MS algorithm for aligning bitfields */
616 /* warning switches */
617 int warn_write_strings
;
618 int warn_unsupported
;
621 int warn_implicit_function_declaration
;
623 /* compile with debug symbol (and use them if error during execution) */
625 #ifdef CONFIG_TCC_BCHECK
626 /* compile with built-in memory and bounds checker */
629 #ifdef TCC_TARGET_ARM
630 enum float_abi float_abi
; /* float ABI of the generated code*/
633 addr_t text_addr
; /* address of text section */
636 unsigned section_align
; /* section alignment */
638 char *init_symbol
; /* symbols to call at load-time (not used currently) */
639 char *fini_symbol
; /* symbols to call at unload-time (not used currently) */
641 #ifdef TCC_TARGET_I386
642 int seg_size
; /* 32. Can be 16 with i386 assembler (.code16) */
645 /* array of all loaded dlls (including those referenced by loaded dlls) */
646 DLLReference
**loaded_dlls
;
650 char **include_paths
;
651 int nb_include_paths
;
653 char **sysinclude_paths
;
654 int nb_sysinclude_paths
;
657 char **library_paths
;
658 int nb_library_paths
;
660 /* crt?.o object path */
666 void (*error_func
)(void *opaque
, const char *msg
);
667 int error_set_jmp_enabled
;
668 jmp_buf error_jmp_buf
;
671 /* output file for preprocessing (-E) */
674 LINE_MACRO_OUTPUT_FORMAT_GCC
,
675 LINE_MACRO_OUTPUT_FORMAT_NONE
,
676 LINE_MACRO_OUTPUT_FORMAT_STD
677 } Pflag
; /* -P switch */
678 char dflag
; /* -dX value */
680 /* for -MD/-MF: collected dependencies for this compilation */
685 BufferedFile
*include_stack
[INCLUDE_STACK_SIZE
];
686 BufferedFile
**include_stack_ptr
;
688 int ifdef_stack
[IFDEF_STACK_SIZE
];
689 int *ifdef_stack_ptr
;
691 /* included files enclosed with #ifndef MACRO */
692 int cached_includes_hash
[CACHED_INCLUDES_HASH_SIZE
];
693 CachedInclude
**cached_includes
;
694 int nb_cached_includes
;
696 /* #pragma pack stack */
697 int pack_stack
[PACK_STACK_SIZE
];
702 /* inline functions are stored as token lists and compiled last
703 only if referenced */
704 struct InlineFunc
**inline_fns
;
709 int nb_sections
; /* number of sections, including first dummy section */
711 Section
**priv_sections
;
712 int nb_priv_sections
; /* number of private sections */
714 /* got & plt handling */
718 /* temporary dynamic symbol sections (for dll loading) */
719 Section
*dynsymtab_section
;
720 /* exported dynamic symbol section */
722 /* copy of the gobal symtab_section variable */
724 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
725 struct sym_attr
*sym_attrs
;
727 /* tiny assembler state */
733 unsigned pe_file_align
;
734 unsigned pe_stack_size
;
735 # ifdef TCC_TARGET_X86_64
743 const char *runtime_main
;
748 /* used by main and tcc_parse_args only */
749 struct filespec
**files
; /* files seen on command line */
750 int nb_files
; /* number thereof */
751 int nb_libraries
; /* number of libs thereof */
753 char *outfile
; /* output filename */
754 char *option_m
; /* only -m32/-m64 handled */
755 int print_search_dirs
; /* option */
756 int option_r
; /* option -r */
757 int do_bench
; /* option -bench */
758 int gen_deps
; /* option -MD */
759 char *deps_outfile
; /* option -MF */
760 int option_pthread
; /* -pthread option */
767 /* The current value can be: */
768 #define VT_VALMASK 0x003f /* mask for value location, register or: */
769 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
770 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
771 #define VT_LOCAL 0x0032 /* offset on stack */
772 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
773 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
774 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
775 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
776 #define VT_LVAL 0x0100 /* var is an lvalue */
777 #define VT_SYM 0x0200 /* a symbol value is added */
778 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
779 char/short stored in integer registers) */
780 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
781 dereferencing value */
782 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
783 bounding function call point is in vc */
784 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
785 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
786 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
787 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
790 #define VT_BTYPE 0x000f /* mask for basic type */
791 #define VT_INT 0 /* integer type */
792 #define VT_BYTE 1 /* signed byte type */
793 #define VT_SHORT 2 /* short type */
794 #define VT_VOID 3 /* void type */
795 #define VT_PTR 4 /* pointer */
796 #define VT_ENUM 5 /* enum definition */
797 #define VT_FUNC 6 /* function type */
798 #define VT_STRUCT 7 /* struct/union definition */
799 #define VT_FLOAT 8 /* IEEE float */
800 #define VT_DOUBLE 9 /* IEEE double */
801 #define VT_LDOUBLE 10 /* IEEE long double */
802 #define VT_BOOL 11 /* ISOC99 boolean type */
803 #define VT_LLONG 12 /* 64 bit integer */
804 #define VT_LONG 13 /* long integer (NEVER USED as type, only
806 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
807 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
808 #define VT_UNSIGNED 0x0010 /* unsigned type */
809 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
810 #define VT_BITFIELD 0x0040 /* bitfield modifier */
811 #define VT_CONSTANT 0x0800 /* const modifier */
812 #define VT_VOLATILE 0x1000 /* volatile modifier */
813 #define VT_DEFSIGN 0x2000 /* signed type */
814 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
817 #define VT_EXTERN 0x00000080 /* extern definition */
818 #define VT_STATIC 0x00000100 /* static variable */
819 #define VT_TYPEDEF 0x00000200 /* typedef definition */
820 #define VT_INLINE 0x00000400 /* inline definition */
821 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
822 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
823 #define VT_WEAK 0x00010000 /* weak symbol */
824 #define VT_TLS 0x00040000 /* thread-local storage */
825 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
826 bitfield values, because bitfields never
827 have linkage and hence never have
829 #define VT_VIS_SIZE 2 /* We have four visibilities. */
830 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
832 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
835 /* type mask (except storage) */
836 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
837 #define VT_TYPE (~(VT_STORAGE))
841 /* warning: the following compare tokens depend on i386 asm code */
848 #define TOK_Nset 0x98
849 #define TOK_Nclear 0x99
855 #define TOK_LAND 0xa0
858 #define TOK_MID 0xa3 /* inc/dec, to void constant */
860 #define TOK_UDIV 0xb0 /* unsigned division */
861 #define TOK_UMOD 0xb1 /* unsigned modulo */
862 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
864 /* tokens that carry values (in additional token string space / tokc) --> */
865 #define TOK_CCHAR 0xb3 /* char constant in tokc */
866 #define TOK_LCHAR 0xb4
867 #define TOK_CINT 0xb5 /* number in tokc */
868 #define TOK_CUINT 0xb6 /* unsigned int constant */
869 #define TOK_CLLONG 0xb7 /* long long constant */
870 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
871 #define TOK_STR 0xb9 /* pointer to string in tokc */
872 #define TOK_LSTR 0xba
873 #define TOK_CFLOAT 0xbb /* float constant */
874 #define TOK_CDOUBLE 0xbc /* double constant */
875 #define TOK_CLDOUBLE 0xbd /* long double constant */
876 #define TOK_PPNUM 0xbe /* preprocessor number */
877 #define TOK_PPSTR 0xbf /* preprocessor string */
878 #define TOK_LINENUM 0xc0 /* line number info */
881 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
882 #define TOK_ADDC1 0xc3 /* add with carry generation */
883 #define TOK_ADDC2 0xc4 /* add with carry use */
884 #define TOK_SUBC1 0xc5 /* add with carry generation */
885 #define TOK_SUBC2 0xc6 /* add with carry use */
886 #define TOK_ARROW 0xc7
887 #define TOK_DOTS 0xc8 /* three dots */
888 #define TOK_SHR 0xc9 /* unsigned shift right */
889 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
890 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
891 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
893 #define TOK_SHL 0x01 /* shift left */
894 #define TOK_SAR 0x02 /* signed shift right */
896 /* assignement operators : normal operator or 0x80 */
897 #define TOK_A_MOD 0xa5
898 #define TOK_A_AND 0xa6
899 #define TOK_A_MUL 0xaa
900 #define TOK_A_ADD 0xab
901 #define TOK_A_SUB 0xad
902 #define TOK_A_DIV 0xaf
903 #define TOK_A_XOR 0xde
904 #define TOK_A_OR 0xfc
905 #define TOK_A_SHL 0x81
906 #define TOK_A_SAR 0x82
909 #define offsetof(type, field) ((size_t) &((type *)0)->field)
913 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
916 #define TOK_EOF (-1) /* end of file */
917 #define TOK_LINEFEED 10 /* line feed */
919 /* all identificators and strings have token above that */
920 #define TOK_IDENT 256
922 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
923 #define TOK_ASM_int TOK_INT
924 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
925 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
926 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
928 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
929 /* only used for i386 asm opcodes definitions */
931 DEF(TOK_ASM_ ## x ## b, #x "b") \
932 DEF(TOK_ASM_ ## x ## w, #x "w") \
933 DEF(TOK_ASM_ ## x ## l, #x "l") \
934 DEF(TOK_ASM_ ## x, #x)
936 DEF(TOK_ASM_ ## x ## w, #x "w") \
937 DEF(TOK_ASM_ ## x ## l, #x "l") \
938 DEF(TOK_ASM_ ## x, #x)
939 #ifdef TCC_TARGET_X86_64
940 # define DEF_BWLQ(x) \
941 DEF(TOK_ASM_ ## x ## b, #x "b") \
942 DEF(TOK_ASM_ ## x ## w, #x "w") \
943 DEF(TOK_ASM_ ## x ## l, #x "l") \
944 DEF(TOK_ASM_ ## x ## q, #x "q") \
945 DEF(TOK_ASM_ ## x, #x)
946 # define DEF_WLQ(x) \
947 DEF(TOK_ASM_ ## x ## w, #x "w") \
948 DEF(TOK_ASM_ ## x ## l, #x "l") \
949 DEF(TOK_ASM_ ## x ## q, #x "q") \
950 DEF(TOK_ASM_ ## x, #x)
951 # define DEF_BWLX DEF_BWLQ
952 # define DEF_WLX DEF_WLQ
953 /* number of sizes + 1 */
956 # define DEF_BWLX DEF_BWL
957 # define DEF_WLX DEF_WL
958 /* number of sizes + 1 */
963 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
964 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
965 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
966 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
969 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
970 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
973 #define DEF_ASMTEST(x,suffix) \
974 DEF_ASM(x ## o ## suffix) \
975 DEF_ASM(x ## no ## suffix) \
976 DEF_ASM(x ## b ## suffix) \
977 DEF_ASM(x ## c ## suffix) \
978 DEF_ASM(x ## nae ## suffix) \
979 DEF_ASM(x ## nb ## suffix) \
980 DEF_ASM(x ## nc ## suffix) \
981 DEF_ASM(x ## ae ## suffix) \
982 DEF_ASM(x ## e ## suffix) \
983 DEF_ASM(x ## z ## suffix) \
984 DEF_ASM(x ## ne ## suffix) \
985 DEF_ASM(x ## nz ## suffix) \
986 DEF_ASM(x ## be ## suffix) \
987 DEF_ASM(x ## na ## suffix) \
988 DEF_ASM(x ## nbe ## suffix) \
989 DEF_ASM(x ## a ## suffix) \
990 DEF_ASM(x ## s ## suffix) \
991 DEF_ASM(x ## ns ## suffix) \
992 DEF_ASM(x ## p ## suffix) \
993 DEF_ASM(x ## pe ## suffix) \
994 DEF_ASM(x ## np ## suffix) \
995 DEF_ASM(x ## po ## suffix) \
996 DEF_ASM(x ## l ## suffix) \
997 DEF_ASM(x ## nge ## suffix) \
998 DEF_ASM(x ## nl ## suffix) \
999 DEF_ASM(x ## ge ## suffix) \
1000 DEF_ASM(x ## le ## suffix) \
1001 DEF_ASM(x ## ng ## suffix) \
1002 DEF_ASM(x ## nle ## suffix) \
1003 DEF_ASM(x ## g ## suffix)
1005 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1008 TOK_LAST
= TOK_IDENT
- 1
1009 #define DEF(id, str) ,id
1014 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1015 #define TOK_UIDENT TOK_DEFINE
1017 /* -------------------------------------------- */
1019 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
1024 #define ST_INLN static inline
1025 #define ST_FUNC static
1026 #define ST_DATA static
1030 #define ST_DATA extern
1033 #ifdef TCC_PROFILE /* profile all functions */
1037 /* ------------ libtcc.c ------------ */
1039 /* use GNU C extensions */
1040 ST_DATA
int gnu_ext
;
1041 /* use Tiny C extensions */
1042 ST_DATA
int tcc_ext
;
1043 /* XXX: get rid of this ASAP */
1044 ST_DATA
struct TCCState
*tcc_state
;
1046 /* public functions currently used by the tcc main function */
1047 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
);
1048 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
);
1049 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
);
1050 PUB_FUNC
char *tcc_basename(const char *name
);
1051 PUB_FUNC
char *tcc_fileextension (const char *name
);
1054 PUB_FUNC
void tcc_free(void *ptr
);
1055 PUB_FUNC
void *tcc_malloc(unsigned long size
);
1056 PUB_FUNC
void *tcc_mallocz(unsigned long size
);
1057 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
);
1058 PUB_FUNC
char *tcc_strdup(const char *str
);
1060 #define tcc_free(ptr) tcc_free_debug(ptr)
1061 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1062 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1063 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1064 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1065 PUB_FUNC
void tcc_free_debug(void *ptr
);
1066 PUB_FUNC
void *tcc_malloc_debug(unsigned long size
, const char *file
, int line
);
1067 PUB_FUNC
void *tcc_mallocz_debug(unsigned long size
, const char *file
, int line
);
1068 PUB_FUNC
void *tcc_realloc_debug(void *ptr
, unsigned long size
, const char *file
, int line
);
1069 PUB_FUNC
char *tcc_strdup_debug(const char *str
, const char *file
, int line
);
1072 #define free(p) use_tcc_free(p)
1073 #define malloc(s) use_tcc_malloc(s)
1074 #define realloc(p, s) use_tcc_realloc(p, s)
1076 #define strdup(s) use_tcc_strdup(s)
1077 PUB_FUNC
void tcc_memstats(int bench
);
1078 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...);
1079 PUB_FUNC NORETURN
void tcc_error(const char *fmt
, ...);
1080 PUB_FUNC
void tcc_warning(const char *fmt
, ...);
1082 /* other utilities */
1083 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
);
1084 ST_FUNC
void dynarray_reset(void *pp
, int *n
);
1085 ST_INLN
void cstr_ccat(CString
*cstr
, int ch
);
1086 ST_FUNC
void cstr_cat(CString
*cstr
, const char *str
, int len
);
1087 ST_FUNC
void cstr_wccat(CString
*cstr
, int ch
);
1088 ST_FUNC
void cstr_new(CString
*cstr
);
1089 ST_FUNC
void cstr_free(CString
*cstr
);
1090 ST_FUNC
void cstr_reset(CString
*cstr
);
1092 ST_INLN
void sym_free(Sym
*sym
);
1093 ST_FUNC Sym
*sym_push2(Sym
**ps
, int v
, int t
, long c
);
1094 ST_FUNC Sym
*sym_find2(Sym
*s
, int v
);
1095 ST_FUNC Sym
*sym_push(int v
, CType
*type
, int r
, int c
);
1096 ST_FUNC
void sym_pop(Sym
**ptop
, Sym
*b
);
1097 ST_INLN Sym
*struct_find(int v
);
1098 ST_INLN Sym
*sym_find(int v
);
1099 ST_FUNC Sym
*global_identifier_push(int v
, int t
, int c
);
1101 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
);
1102 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
);
1103 ST_FUNC
void tcc_close(void);
1105 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
);
1107 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1108 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1109 #define AFF_PREPROCESS 0x40 /* preprocess file */
1110 /* combined with: */
1111 #define AFF_TYPE_NONE 0
1112 #define AFF_TYPE_C 1
1113 #define AFF_TYPE_ASM 2
1114 #define AFF_TYPE_ASMPP 3
1115 #define AFF_TYPE_BIN 4
1116 #define AFF_TYPE_LIB 5
1117 #define AFF_TYPE_LIBWH 6
1118 /* values from tcc_object_type(...) */
1119 #define AFF_BINTYPE_REL 1
1120 #define AFF_BINTYPE_DYN 2
1121 #define AFF_BINTYPE_AR 3
1122 #define AFF_BINTYPE_C67 4
1125 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
);
1127 #ifndef TCC_TARGET_PE
1128 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
);
1131 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
);
1132 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *f
);
1134 PUB_FUNC
void tcc_print_stats(TCCState
*s
, unsigned total_time
);
1135 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
);
1136 PUB_FUNC
void tcc_set_environment(TCCState
*s
);
1138 ST_FUNC
char *normalize_slashes(char *path
);
1141 /* ------------ tccpp.c ------------ */
1143 ST_DATA
struct BufferedFile
*file
;
1144 ST_DATA
int ch
, tok
;
1145 ST_DATA CValue tokc
;
1146 ST_DATA
const int *macro_ptr
;
1147 ST_DATA
int parse_flags
;
1148 ST_DATA
int tok_flags
;
1149 ST_DATA CString tokcstr
; /* current parsed string, if any */
1151 /* display benchmark infos */
1152 ST_DATA
int total_lines
;
1153 ST_DATA
int total_bytes
;
1154 ST_DATA
int tok_ident
;
1155 ST_DATA TokenSym
**table_ident
;
1157 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1158 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1159 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1160 #define TOK_FLAG_EOF 0x0008 /* end of file */
1162 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1163 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1164 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1165 token. line feed is also
1167 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1168 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1169 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1170 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1172 ST_FUNC TokenSym
*tok_alloc(const char *str
, int len
);
1173 ST_FUNC
const char *get_tok_str(int v
, CValue
*cv
);
1174 ST_FUNC
void begin_macro(TokenString
*str
, int alloc
);
1175 ST_FUNC
void end_macro(void);
1176 ST_FUNC
void save_parse_state(ParseState
*s
);
1177 ST_FUNC
void restore_parse_state(ParseState
*s
);
1178 ST_INLN
void tok_str_new(TokenString
*s
);
1179 ST_FUNC TokenString
*tok_str_alloc(void);
1180 ST_FUNC
void tok_str_free(TokenString
*s
);
1181 ST_FUNC
void tok_str_free_str(int *str
);
1182 ST_FUNC
void tok_str_add(TokenString
*s
, int t
);
1183 ST_FUNC
void tok_str_add_tok(TokenString
*s
);
1184 ST_INLN
void define_push(int v
, int macro_type
, int *str
, Sym
*first_arg
);
1185 ST_FUNC
void define_undef(Sym
*s
);
1186 ST_INLN Sym
*define_find(int v
);
1187 ST_FUNC
void free_defines(Sym
*b
);
1188 ST_FUNC Sym
*label_find(int v
);
1189 ST_FUNC Sym
*label_push(Sym
**ptop
, int v
, int flags
);
1190 ST_FUNC
void label_pop(Sym
**ptop
, Sym
*slast
);
1191 ST_FUNC
void parse_define(void);
1192 ST_FUNC
void preprocess(int is_bof
);
1193 ST_FUNC
void next_nomacro(void);
1194 ST_FUNC
void next(void);
1195 ST_INLN
void unget_tok(int last_tok
);
1196 ST_FUNC
void preprocess_start(TCCState
*s1
);
1197 ST_FUNC
void tccpp_new(TCCState
*s
);
1198 ST_FUNC
void tccpp_delete(TCCState
*s
);
1199 ST_FUNC
int tcc_preprocess(TCCState
*s1
);
1200 ST_FUNC
void skip(int c
);
1201 ST_FUNC NORETURN
void expect(const char *msg
);
1203 /* space exlcuding newline */
1204 static inline int is_space(int ch
) {
1205 return ch
== ' ' || ch
== '\t' || ch
== '\v' || ch
== '\f' || ch
== '\r';
1207 static inline int isid(int c
) {
1208 return (c
>= 'a' && c
<= 'z') || (c
>= 'A' && c
<= 'Z') || c
== '_';
1210 static inline int isnum(int c
) {
1211 return c
>= '0' && c
<= '9';
1213 static inline int isoct(int c
) {
1214 return c
>= '0' && c
<= '7';
1216 static inline int toup(int c
) {
1217 return (c
>= 'a' && c
<= 'z') ? c
- 'a' + 'A' : c
;
1220 /* ------------ tccgen.c ------------ */
1222 #define SYM_POOL_NB (8192 / sizeof(Sym))
1223 ST_DATA Sym
*sym_free_first
;
1224 ST_DATA
void **sym_pools
;
1225 ST_DATA
int nb_sym_pools
;
1227 ST_DATA Sym
*global_stack
;
1228 ST_DATA Sym
*local_stack
;
1229 ST_DATA Sym
*local_label_stack
;
1230 ST_DATA Sym
*global_label_stack
;
1231 ST_DATA Sym
*define_stack
;
1232 ST_DATA CType char_pointer_type
, func_old_type
, int_type
, size_type
;
1233 ST_DATA SValue __vstack
[1+/*to make bcheck happy*/ VSTACK_SIZE
], *vtop
, *pvtop
;
1234 #define vstack (__vstack + 1)
1235 ST_DATA
int rsym
, anon_sym
, ind
, loc
;
1237 ST_DATA
int const_wanted
; /* true if constant wanted */
1238 ST_DATA
int nocode_wanted
; /* true if no code generation wanted for an expression */
1239 ST_DATA
int global_expr
; /* true if compound literals must be allocated globally (used during initializers parsing */
1240 ST_DATA CType func_vt
; /* current function return type (used by return instruction) */
1241 ST_DATA
int func_var
; /* true if current function is variadic */
1242 ST_DATA
int func_vc
;
1243 ST_DATA
int last_line_num
, last_ind
, func_ind
; /* debug last line number and pc */
1244 ST_DATA
const char *funcname
;
1246 ST_FUNC
void tccgen_start(TCCState
*s1
);
1247 ST_FUNC
void tccgen_end(TCCState
*s1
);
1248 ST_FUNC
void free_inline_functions(TCCState
*s
);
1249 ST_FUNC
void check_vstack(void);
1251 ST_INLN
int is_float(int t
);
1252 ST_FUNC
int ieee_finite(double d
);
1253 ST_FUNC
void test_lvalue(void);
1254 ST_FUNC
void swap(int *p
, int *q
);
1255 ST_FUNC
void vpushi(int v
);
1256 ST_FUNC Sym
*external_global_sym(int v
, CType
*type
, int r
);
1257 ST_FUNC
void vset(CType
*type
, int r
, int v
);
1258 ST_FUNC
void vswap(void);
1259 ST_FUNC
void vpush_global_sym(CType
*type
, int v
);
1260 ST_FUNC
void vrote(SValue
*e
, int n
);
1261 ST_FUNC
void vrott(int n
);
1262 ST_FUNC
void vrotb(int n
);
1263 #ifdef TCC_TARGET_ARM
1264 ST_FUNC
int get_reg_ex(int rc
, int rc2
);
1265 ST_FUNC
void lexpand_nr(void);
1267 ST_FUNC
void vpushv(SValue
*v
);
1268 ST_FUNC
void save_reg(int r
);
1269 ST_FUNC
void save_reg_upstack(int r
, int n
);
1270 ST_FUNC
int get_reg(int rc
);
1271 ST_FUNC
void save_regs(int n
);
1272 ST_FUNC
void gaddrof(void);
1273 ST_FUNC
int gv(int rc
);
1274 ST_FUNC
void gv2(int rc1
, int rc2
);
1275 ST_FUNC
void vpop(void);
1276 ST_FUNC
void gen_op(int op
);
1277 ST_FUNC
int type_size(CType
*type
, int *a
);
1278 ST_FUNC
void mk_pointer(CType
*type
);
1279 ST_FUNC
void vstore(void);
1280 ST_FUNC
void inc(int post
, int c
);
1281 ST_FUNC
void parse_asm_str(CString
*astr
);
1282 ST_FUNC
int lvalue_type(int t
);
1283 ST_FUNC
void indir(void);
1284 ST_FUNC
void unary(void);
1285 ST_FUNC
void expr_prod(void);
1286 ST_FUNC
void expr_sum(void);
1287 ST_FUNC
void gexpr(void);
1288 ST_FUNC
int expr_const(void);
1289 ST_FUNC
void decl(int l
);
1290 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1291 ST_FUNC Sym
*get_sym_ref(CType
*type
, Section
*sec
, unsigned long offset
, unsigned long size
);
1293 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1294 ST_FUNC
int classify_x86_64_va_arg(CType
*ty
);
1297 /* ------------ tccelf.c ------------ */
1299 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1300 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1301 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1303 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1306 unsigned int n_strx
; /* index into string table of name */
1307 unsigned char n_type
; /* type of symbol */
1308 unsigned char n_other
; /* misc info (usually empty) */
1309 unsigned short n_desc
; /* description field */
1310 unsigned int n_value
; /* value of symbol */
1313 ST_DATA Section
*text_section
, *data_section
, *bss_section
; /* predefined sections */
1314 ST_DATA Section
*cur_text_section
; /* current section where function code is generated */
1315 #ifdef CONFIG_TCC_ASM
1316 ST_DATA Section
*last_text_section
; /* to handle .previous asm directive */
1318 #ifdef CONFIG_TCC_BCHECK
1319 /* bound check related sections */
1320 ST_DATA Section
*bounds_section
; /* contains global data bound description */
1321 ST_DATA Section
*lbounds_section
; /* contains local data bound description */
1322 ST_FUNC
void tccelf_bounds_new(TCCState
*s
);
1324 /* symbol sections */
1325 ST_DATA Section
*symtab_section
, *strtab_section
;
1326 /* debug sections */
1327 ST_DATA Section
*stab_section
, *stabstr_section
;
1329 ST_FUNC
void tccelf_new(TCCState
*s
);
1330 ST_FUNC
void tccelf_delete(TCCState
*s
);
1331 ST_FUNC
void tccelf_stab_new(TCCState
*s
);
1333 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
);
1334 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
);
1335 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
);
1336 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
);
1337 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
);
1338 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
);
1340 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
, addr_t value
, unsigned long size
, int can_add_underscore
);
1341 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
, addr_t value
, unsigned long size
);
1342 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
);
1343 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
, addr_t addend
);
1345 ST_FUNC
int put_elf_str(Section
*s
, const char *sym
);
1346 ST_FUNC
int put_elf_sym(Section
*s
, addr_t value
, unsigned long size
, int info
, int other
, int shndx
, const char *name
);
1347 ST_FUNC
int set_elf_sym(Section
*s
, addr_t value
, unsigned long size
, int info
, int other
, int shndx
, const char *name
);
1348 ST_FUNC
int find_elf_sym(Section
*s
, const char *name
);
1349 ST_FUNC
void put_elf_reloc(Section
*symtab
, Section
*s
, unsigned long offset
, int type
, int symbol
);
1350 ST_FUNC
void put_elf_reloca(Section
*symtab
, Section
*s
, unsigned long offset
, int type
, int symbol
, addr_t addend
);
1352 ST_FUNC
void put_stabs(const char *str
, int type
, int other
, int desc
, unsigned long value
);
1353 ST_FUNC
void put_stabs_r(const char *str
, int type
, int other
, int desc
, unsigned long value
, Section
*sec
, int sym_index
);
1354 ST_FUNC
void put_stabn(int type
, int other
, int desc
, int value
);
1355 ST_FUNC
void put_stabd(int type
, int other
, int desc
);
1357 ST_FUNC
void relocate_common_syms(void);
1358 ST_FUNC
void relocate_syms(TCCState
*s1
, Section
*symtab
, int do_resolve
);
1359 ST_FUNC
void relocate_section(TCCState
*s1
, Section
*s
);
1361 ST_FUNC
void tcc_add_linker_symbols(TCCState
*s1
);
1362 ST_FUNC
int tcc_object_type(int fd
, ElfW(Ehdr
) *h
);
1363 ST_FUNC
int tcc_load_object_file(TCCState
*s1
, int fd
, unsigned long file_offset
);
1364 ST_FUNC
int tcc_load_archive(TCCState
*s1
, int fd
);
1365 ST_FUNC
void tcc_add_bcheck(TCCState
*s1
);
1366 ST_FUNC
void tcc_add_runtime(TCCState
*s1
);
1368 ST_FUNC
void build_got_entries(TCCState
*s1
);
1369 ST_FUNC
struct sym_attr
*get_sym_attr(TCCState
*s1
, int index
, int alloc
);
1370 ST_FUNC addr_t
get_elf_sym_addr(TCCState
*s
, const char *name
, int err
);
1371 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1372 ST_FUNC
void *tcc_get_symbol_err(TCCState
*s
, const char *name
);
1375 #ifndef TCC_TARGET_PE
1376 ST_FUNC
int tcc_load_dll(TCCState
*s1
, int fd
, const char *filename
, int level
);
1377 ST_FUNC
int tcc_load_ldscript(TCCState
*s1
);
1378 ST_FUNC
uint8_t *parse_comment(uint8_t *p
);
1379 ST_FUNC
void minp(void);
1380 ST_INLN
void inp(void);
1381 ST_FUNC
int handle_eob(void);
1384 /* ------------ xxx-link.c ------------ */
1386 /* Wether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1387 that unknown relocation don't create a GOT or PLT entry */
1389 NO_GOTPLT_ENTRY
, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1390 BUILD_GOT_ONLY
, /* only build GOT (eg. TPOFF relocs) */
1391 AUTO_GOTPLT_ENTRY
, /* generate if sym is UNDEF */
1392 ALWAYS_GOTPLT_ENTRY
/* always generate (eg. PLTOFF relocs) */
1395 ST_FUNC
int code_reloc (int reloc_type
);
1396 ST_FUNC
int gotplt_entry_type (int reloc_type
);
1397 ST_FUNC
unsigned create_plt_entry(TCCState
*s1
, unsigned got_offset
, struct sym_attr
*attr
);
1398 ST_FUNC
void relocate_init(Section
*sr
);
1399 ST_FUNC
void relocate(TCCState
*s1
, ElfW_Rel
*rel
, int type
, char *ptr
, addr_t addr
, addr_t val
);
1400 ST_FUNC
void relocate_plt(TCCState
*s1
);
1402 /* ------------ xxx-gen.c ------------ */
1404 ST_DATA
const int reg_classes
[NB_REGS
];
1406 ST_FUNC
void gsym_addr(int t
, int a
);
1407 ST_FUNC
void gsym(int t
);
1408 ST_FUNC
void load(int r
, SValue
*sv
);
1409 ST_FUNC
void store(int r
, SValue
*v
);
1410 ST_FUNC
int gfunc_sret(CType
*vt
, int variadic
, CType
*ret
, int *align
, int *regsize
);
1411 ST_FUNC
void gfunc_call(int nb_args
);
1412 ST_FUNC
void gfunc_prolog(CType
*func_type
);
1413 ST_FUNC
void gfunc_epilog(void);
1414 ST_FUNC
int gjmp(int t
);
1415 ST_FUNC
void gjmp_addr(int a
);
1416 ST_FUNC
int gtst(int inv
, int t
);
1417 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1418 ST_FUNC
void gtst_addr(int inv
, int a
);
1420 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1422 ST_FUNC
void gen_opi(int op
);
1423 ST_FUNC
void gen_opf(int op
);
1424 ST_FUNC
void gen_cvt_ftoi(int t
);
1425 ST_FUNC
void gen_cvt_ftof(int t
);
1426 ST_FUNC
void ggoto(void);
1427 #ifndef TCC_TARGET_C67
1428 ST_FUNC
void o(unsigned int c
);
1430 #ifndef TCC_TARGET_ARM
1431 ST_FUNC
void gen_cvt_itof(int t
);
1433 ST_FUNC
void gen_vla_sp_save(int addr
);
1434 ST_FUNC
void gen_vla_sp_restore(int addr
);
1435 ST_FUNC
void gen_vla_alloc(CType
*type
, int align
);
1437 static inline uint16_t read16le(unsigned char *p
) {
1438 return p
[0] | (uint16_t)p
[1] << 8;
1440 static inline void write16le(unsigned char *p
, uint16_t x
) {
1441 p
[0] = x
& 255, p
[1] = x
>> 8 & 255;
1443 static inline uint32_t read32le(unsigned char *p
) {
1444 return read16le(p
) | (uint32_t)read16le(p
+ 2) << 16;
1446 static inline void write32le(unsigned char *p
, uint32_t x
) {
1447 write16le(p
, x
), write16le(p
+ 2, x
>> 16);
1449 static inline void add32le(unsigned char *p
, int32_t x
) {
1450 write32le(p
, read32le(p
) + x
);
1452 static inline uint64_t read64le(unsigned char *p
) {
1453 return read32le(p
) | (uint64_t)read32le(p
+ 4) << 32;
1455 static inline void write64le(unsigned char *p
, uint64_t x
) {
1456 write32le(p
, x
), write32le(p
+ 4, x
>> 32);
1458 static inline void add64le(unsigned char *p
, int64_t x
) {
1459 write64le(p
, read64le(p
) + x
);
1462 /* ------------ i386-gen.c ------------ */
1463 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1464 ST_FUNC
void g(int c
);
1465 ST_FUNC
int oad(int c
, int s
);
1466 ST_FUNC
void gen_le16(int c
);
1467 ST_FUNC
void gen_le32(int c
);
1468 ST_FUNC
void gen_addr32(int r
, Sym
*sym
, int c
);
1469 ST_FUNC
void gen_addrpc32(int r
, Sym
*sym
, int c
);
1472 #ifdef CONFIG_TCC_BCHECK
1473 ST_FUNC
void gen_bounded_ptr_add(void);
1474 ST_FUNC
void gen_bounded_ptr_deref(void);
1477 /* ------------ x86_64-gen.c ------------ */
1478 #ifdef TCC_TARGET_X86_64
1479 ST_FUNC
void gen_addr64(int r
, Sym
*sym
, int64_t c
);
1480 ST_FUNC
void gen_opl(int op
);
1483 /* ------------ arm-gen.c ------------ */
1484 #ifdef TCC_TARGET_ARM
1485 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1486 ST_FUNC
char *default_elfinterp(struct TCCState
*s
);
1488 ST_FUNC
void arm_init(struct TCCState
*s
);
1489 ST_FUNC
uint32_t encbranch(int pos
, int addr
, int fail
);
1490 ST_FUNC
void gen_cvt_itof1(int t
);
1493 /* ------------ arm64-gen.c ------------ */
1494 #ifdef TCC_TARGET_ARM64
1495 ST_FUNC
void gen_cvt_sxtw(void);
1496 ST_FUNC
void gen_opl(int op
);
1497 ST_FUNC
void greturn(void);
1498 ST_FUNC
void gen_va_start(void);
1499 ST_FUNC
void gen_va_arg(CType
*t
);
1500 ST_FUNC
void gen_clear_cache(void);
1503 /* ------------ c67-gen.c ------------ */
1504 #ifdef TCC_TARGET_C67
1507 /* ------------ tcccoff.c ------------ */
1509 #ifdef TCC_TARGET_COFF
1510 ST_FUNC
int tcc_output_coff(TCCState
*s1
, FILE *f
);
1511 ST_FUNC
int tcc_load_coff(TCCState
* s1
, int fd
);
1514 /* ------------ tccasm.c ------------ */
1515 ST_FUNC
void asm_instr(void);
1516 ST_FUNC
void asm_global_instr(void);
1517 #ifdef CONFIG_TCC_ASM
1518 ST_FUNC
int find_constraint(ASMOperand
*operands
, int nb_operands
, const char *name
, const char **pp
);
1519 ST_FUNC
void asm_expr(TCCState
*s1
, ExprValue
*pe
);
1520 ST_FUNC
int asm_int_expr(TCCState
*s1
);
1521 ST_FUNC
int tcc_assemble(TCCState
*s1
, int do_preprocess
);
1522 /* ------------ i386-asm.c ------------ */
1523 ST_FUNC
void gen_expr32(ExprValue
*pe
);
1524 ST_FUNC
void asm_opcode(TCCState
*s1
, int opcode
);
1525 ST_FUNC
void asm_compute_constraints(ASMOperand
*operands
, int nb_operands
, int nb_outputs
, const uint8_t *clobber_regs
, int *pout_reg
);
1526 ST_FUNC
void subst_asm_operand(CString
*add_str
, SValue
*sv
, int modifier
);
1527 ST_FUNC
void asm_gen_code(ASMOperand
*operands
, int nb_operands
, int nb_outputs
, int is_output
, uint8_t *clobber_regs
, int out_reg
);
1528 ST_FUNC
void asm_clobber(uint8_t *clobber_regs
, const char *str
);
1531 /* ------------ tccpe.c -------------- */
1532 #ifdef TCC_TARGET_PE
1533 ST_FUNC
int pe_load_file(struct TCCState
*s1
, const char *filename
, int fd
);
1534 ST_FUNC
int pe_output_file(TCCState
* s1
, const char *filename
);
1535 ST_FUNC
int pe_putimport(TCCState
*s1
, int dllindex
, const char *name
, addr_t value
);
1536 #ifndef TCC_TARGET_ARM
1537 ST_FUNC SValue
*pe_getimport(SValue
*sv
, SValue
*v2
);
1539 #ifdef TCC_TARGET_X86_64
1540 ST_FUNC
void pe_add_unwind_data(unsigned start
, unsigned end
, unsigned stack
);
1542 /* symbol properties stored in Elf32_Sym->st_other */
1543 # define ST_PE_EXPORT 0x10
1544 # define ST_PE_IMPORT 0x20
1545 # define ST_PE_STDCALL 0x40
1548 /* ------------ tccrun.c ----------------- */
1549 #ifdef TCC_IS_NATIVE
1550 #ifdef CONFIG_TCC_STATIC
1551 #define RTLD_LAZY 0x001
1552 #define RTLD_NOW 0x002
1553 #define RTLD_GLOBAL 0x100
1554 #define RTLD_DEFAULT NULL
1555 /* dummy function for profiling */
1556 ST_FUNC
void *dlopen(const char *filename
, int flag
);
1557 ST_FUNC
void dlclose(void *p
);
1558 ST_FUNC
const char *dlerror(void);
1559 ST_FUNC
void *dlsym(void *handle
, const char *symbol
);
1561 #ifdef CONFIG_TCC_BACKTRACE
1562 ST_DATA
int rt_num_callers
;
1563 ST_DATA
const char **rt_bound_error_msg
;
1564 ST_DATA
void *rt_prog_main
;
1565 ST_FUNC
void tcc_set_num_callers(int n
);
1567 ST_FUNC
void tcc_run_free(TCCState
*s1
);
1570 /********************************************************/
1573 #define ST_DATA static
1577 /********************************************************/