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tcc-stupidos/libtcc/include/tcc.h
d0p1 ca1e24c395 Further refactor code
2025-02-11 13:07:04 +01:00

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/*
* TCC - Tiny C Compiler
*
* Copyright (c) 2001-2004 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _TCC_H
#define _TCC_H
#define _GNU_SOURCE
#define _DARWIN_C_SOURCE
#include "config.h"
#include <stdio.h>
#include <stdarg.h>
/* gnu headers use to #define __attribute__ to empty for non-gcc compilers */
#ifdef __TINYC__
# undef __attribute__
#endif
#include <string.h>
#include <fcntl.h>
#include <setjmp.h>
#include <time.h>
#ifndef _WIN32
# include <unistd.h>
# include <sys/time.h>
# ifndef CONFIG_TCC_STATIC
# include <dlfcn.h>
# endif
/* XXX: need to define this to use them in non ISOC99 context */
extern float strtof (const char *__nptr, char **__endptr);
extern long double strtold (const char *__nptr, char **__endptr);
#endif
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN 1
# include <windows.h>
# include <io.h> /* open, close etc. */
# include <direct.h> /* getcwd */
# include <malloc.h> /* alloca */
# ifdef __GNUC__
# include <stdint.h>
# endif
# define inline __inline
# define snprintf _snprintf
# define vsnprintf _vsnprintf
# ifndef __GNUC__
# define strtold (long double)strtod
# define strtof (float)strtod
# define strtoll _strtoi64
# define strtoull _strtoui64
# endif
# ifndef va_copy
# define va_copy(a,b) a = b
# endif
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
#ifndef offsetof
#define offsetof(type, field) ((size_t) &((type *)0)->field)
#endif
#ifndef countof
#define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
#endif
/* -------------------------------------------- */
/* parser debug */
/* #define PARSE_DEBUG */
/* preprocessor debug */
/* #define PP_DEBUG */
/* include file debug */
/* #define INC_DEBUG */
/* memory leak debug (only for single threaded usage) */
/* #define MEM_DEBUG 1,2,3 */
/* assembler debug */
/* #define ASM_DEBUG */
#ifdef CONFIG_TCC_PIE
# define CONFIG_TCC_PIC 1
#endif
/* support using libtcc from threads */
#ifndef CONFIG_TCC_SEMLOCK
# define CONFIG_TCC_SEMLOCK 1
#endif
/* ------------ path configuration ------------ */
#ifndef CONFIG_SYSROOT
# define CONFIG_SYSROOT ""
#endif
#if !defined CONFIG_TCCDIR && !defined _WIN32
# define CONFIG_TCCDIR "/usr/local/lib/tcc"
#endif
#ifndef CONFIG_LDDIR
# define CONFIG_LDDIR "lib"
#endif
#ifdef CONFIG_TRIPLET
# define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
# define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
#else
# define USE_TRIPLET(s) s
# define ALSO_TRIPLET(s) s
#endif
/* path to find crt1.o, crti.o and crtn.o */
#ifndef CONFIG_TCC_CRTPREFIX
# define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
#endif
#ifndef CONFIG_USR_INCLUDE
# define CONFIG_USR_INCLUDE "/usr/include"
#endif
/* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
/* system include paths */
#ifndef CONFIG_TCC_SYSINCLUDEPATHS
# define CONFIG_TCC_SYSINCLUDEPATHS \
"{B}/include" \
":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
":" ALSO_TRIPLET(CONFIG_SYSROOT CONFIG_USR_INCLUDE)
#endif
/* library search paths */
#ifndef CONFIG_TCC_LIBPATHS
# define CONFIG_TCC_LIBPATHS \
"{B}" \
":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
#endif
/* (target specific) libtcc1.a */
#ifndef TCC_LIBTCC1
# define TCC_LIBTCC1 "libtcc1.a"
#endif
/* <cross-prefix-to->libtcc1.a */
#ifndef CONFIG_TCC_CROSSPREFIX
# define CONFIG_TCC_CROSSPREFIX ""
#endif
/* -------------------------------------------- */
#include <libtcc.h>
#include <tcc/elf.h>
#include <tcc/coff.h>
#include <tcc/utils/cstring.h>
/* -------------------------------------------- */
#ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
# define PUB_FUNC
#endif
/* -------------------------------------------- */
/* include the target specific definitions */
# include "tcc/i386/gen.h"
# include "tcc/i386/link.h"
# define ELFCLASSW ELFCLASS32
# define ElfW(type) Elf##32##_##type
# define ELFW(type) ELF##32##_##type
# define ElfW_Rel ElfW(Rel)
# define SHT_RELX SHT_REL
# define REL_SECTION_FMT ".rel%s"
/* target address type */
typedef uint32_t addr_t;
#define ElfSym ElfW(Sym)
#define LONG_SIZE 4
/* -------------------------------------------- */
#define INCLUDE_STACK_SIZE 32
#define IFDEF_STACK_SIZE 64
#define VSTACK_SIZE 512
#define STRING_MAX_SIZE 1024
#define TOKSTR_MAX_SIZE 256
#define PACK_STACK_SIZE 8
#define TOK_HASH_SIZE 16384 /* must be a power of two */
#define TOK_ALLOC_INCR 512 /* must be a power of two */
#define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
/* token symbol management */
typedef struct TokenSym {
struct TokenSym *hash_next;
struct Sym *sym_define; /* direct pointer to define */
struct Sym *sym_label; /* direct pointer to label */
struct Sym *sym_struct; /* direct pointer to structure */
struct Sym *sym_identifier; /* direct pointer to identifier */
int tok; /* token number */
int len;
char str[1];
} TokenSym;
typedef int nwchar_t;
/* type definition */
typedef struct CType {
int t;
struct Sym *ref;
} CType;
/* constant value */
typedef union CValue {
long double ld;
double d;
float f;
uint64_t i;
struct {
char *data;
int size;
} str;
int tab[LDOUBLE_SIZE/4];
} CValue;
/* value on stack */
typedef struct SValue {
CType type; /* type */
unsigned short r; /* register + flags */
unsigned short r2; /* second register, used for 'long long'
type. If not used, set to VT_CONST */
union {
struct { int jtrue, jfalse; }; /* forward jmps */
CValue c; /* constant, if VT_CONST */
};
union {
struct { unsigned short cmp_op, cmp_r; }; /* VT_CMP operation */
struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if */
}; /* result of unary() for an identifier. */
} SValue;
/* symbol attributes */
struct SymAttr {
unsigned short
aligned : 5, /* alignment as log2+1 (0 == unspecified) */
packed : 1,
weak : 1,
visibility : 2,
dllexport : 1,
nodecorate : 1,
dllimport : 1,
addrtaken : 1,
nodebug : 1,
xxxx : 2; /* not used */
};
/* function attributes or temporary attributes for parsing */
struct FuncAttr {
unsigned
func_call : 3, /* calling convention (0..5), see below */
func_type : 2, /* FUNC_OLD/NEW/ELLIPSIS */
func_noreturn : 1, /* attribute((noreturn)) */
func_ctor : 1, /* attribute((constructor)) */
func_dtor : 1, /* attribute((destructor)) */
func_args : 8, /* PE __stdcall args */
func_alwinl : 1, /* always_inline */
xxxx : 15;
};
/* symbol management */
typedef struct Sym {
int v; /* symbol token */
unsigned short r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
struct SymAttr a; /* symbol attributes */
union {
struct {
int c; /* associated number or Elf symbol index */
union {
int sym_scope; /* scope level for locals */
int jnext; /* next jump label */
int jind; /* label position */
struct FuncAttr f; /* function attributes */
int auxtype; /* bitfield access type */
};
};
long long enum_val; /* enum constant if IS_ENUM_VAL */
int *d; /* define token stream */
struct Sym *cleanup_func;
};
CType type; /* associated type */
union {
struct Sym *next; /* next related symbol (for fields and anoms) */
int *e; /* expanded token stream */
int asm_label; /* associated asm label */
struct Sym *cleanupstate; /* in defined labels */
int *vla_array_str; /* vla array code */
};
struct Sym *prev; /* prev symbol in stack */
struct Sym *prev_tok; /* previous symbol for this token */
} Sym;
/* section definition */
typedef struct Section {
unsigned long data_offset; /* current data offset */
unsigned char *data; /* section data */
unsigned long data_allocated; /* used for realloc() handling */
TCCState *s1;
/**/
char *c_name[8];
addr_t c_addr;
int32_t c_flags;
/**/
int sh_name; /* elf section name (only used during output) */
int sh_num; /* elf section number */
int sh_type; /* elf section type */
int sh_flags; /* elf section flags */
int sh_info; /* elf section info */
int sh_addralign; /* elf section alignment */
int sh_entsize; /* elf entry size */
unsigned long sh_size; /* section size (only used during output) */
addr_t sh_addr; /* address at which the section is relocated */
unsigned long sh_offset; /* file offset */
int nb_hashed_syms; /* used to resize the hash table */
struct Section *link; /* link to another section */
struct Section *reloc; /* corresponding section for relocation, if any */
struct Section *hash; /* hash table for symbols */
struct Section *prev; /* previous section on section stack */
char name[1]; /* section name */
} Section;
/* -------------------------------------------------- */
#define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
#define SYM_FIELD 0x20000000 /* struct/union field symbol space */
#define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
/* stored in 'Sym->f.func_type' field */
#define FUNC_NEW 1 /* ansi function prototype */
#define FUNC_OLD 2 /* old function prototype */
#define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
/* stored in 'Sym->f.func_call' field */
#define FUNC_CDECL 0 /* standard c call */
#define FUNC_STDCALL 1 /* pascal c call */
#define FUNC_FASTCALL1 2 /* first param in %eax */
#define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
#define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
#define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
#define FUNC_THISCALL 6 /* first param in %ecx */
/* field 'Sym.t' for macros */
#define MACRO_OBJ 0 /* object like macro */
#define MACRO_FUNC 1 /* function like macro */
#define MACRO_JOIN 2 /* macro uses ## */
/* field 'Sym.r' for C labels */
#define LABEL_DEFINED 0 /* label is defined */
#define LABEL_FORWARD 1 /* label is forward defined */
#define LABEL_DECLARED 2 /* label is declared but never used */
#define LABEL_GONE 3 /* label isn't in scope, but not yet popped
from local_label_stack (stmt exprs) */
/* type_decl() types */
#define TYPE_ABSTRACT 1 /* type without variable */
#define TYPE_DIRECT 2 /* type with variable */
#define TYPE_PARAM 4 /* type declares function parameter */
#define TYPE_NEST 8 /* nested call to post_type */
#define IO_BUF_SIZE 8192
typedef struct BufferedFile {
uint8_t *buf_ptr;
uint8_t *buf_end;
int fd;
struct BufferedFile *prev;
int line_num; /* current line number - here to simplify code */
int line_ref; /* tcc -E: last printed line */
int ifndef_macro; /* #ifndef macro / #endif search */
int ifndef_macro_saved; /* saved ifndef_macro */
int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
int include_next_index; /* next search path */
int prev_tok_flags; /* saved tok_flags */
char filename[1024]; /* filename */
char *true_filename; /* filename not modified by # line directive */
unsigned char unget[4];
unsigned char buffer[1]; /* extra size for CH_EOB char */
} BufferedFile;
#define CH_EOB '\\' /* end of buffer or '\0' char in file */
#define CH_EOF (-1) /* end of file */
/* used to record tokens */
typedef struct TokenString {
int *str;
int len;
int need_spc;
int allocated_len;
int last_line_num;
int save_line_num;
/* used to chain token-strings with begin/end_macro() */
struct TokenString *prev;
const int *prev_ptr;
char alloc;
} TokenString;
/* GNUC attribute definition */
typedef struct AttributeDef {
struct SymAttr a;
struct FuncAttr f;
struct Section *section;
Sym *cleanup_func;
int alias_target; /* token */
int asm_label; /* associated asm label */
char attr_mode; /* __attribute__((__mode__(...))) */
} AttributeDef;
/* inline functions */
typedef struct InlineFunc {
TokenString *func_str;
Sym *sym;
char filename[1];
} InlineFunc;
/* include file cache, used to find files faster and also to eliminate
inclusion if the include file is protected by #ifndef ... #endif */
typedef struct CachedInclude {
int ifndef_macro;
int once;
int hash_next; /* -1 if none */
char filename[1]; /* path specified in #include */
} CachedInclude;
#define CACHED_INCLUDES_HASH_SIZE 32
typedef struct ExprValue {
uint64_t v;
Sym *sym;
int pcrel;
} ExprValue;
#define MAX_ASM_OPERANDS 30
typedef struct ASMOperand {
int id; /* GCC 3 optional identifier (0 if number only supported) */
char constraint[16];
char asm_str[16]; /* computed asm string for operand */
SValue *vt; /* C value of the expression */
int ref_index; /* if >= 0, gives reference to a output constraint */
int input_index; /* if >= 0, gives reference to an input constraint */
int priority; /* priority, used to assign registers */
int reg; /* if >= 0, register number used for this operand */
int is_llong; /* true if double register value */
int is_memory; /* true if memory operand */
int is_rw; /* for '+' modifier */
int is_label; /* for asm goto */
} ASMOperand;
/* extra symbol attributes (not in symbol table) */
struct sym_attr {
unsigned got_offset;
unsigned plt_offset;
int plt_sym;
int dyn_index;
};
struct TCCState {
unsigned char verbose; /* if true, display some information during compilation */
unsigned char nostdinc; /* if true, no standard headers are added */
unsigned char nostdlib; /* if true, no standard libraries are added */
unsigned char nocommon; /* if true, do not use common symbols for .bss data */
unsigned char symbolic; /* if true, resolve symbols in the current module first */
unsigned char filetype; /* file type for compilation (NONE,C,ASM) */
unsigned char optimize; /* only to #define __OPTIMIZE__ */
unsigned char option_pthread; /* -pthread option */
unsigned char enable_new_dtags; /* -Wl,--enable-new-dtags */
unsigned int cversion; /* supported C ISO version, 199901 (the default), 201112, ... */
/* C language options */
unsigned char char_is_unsigned;
unsigned char leading_underscore;
unsigned char ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
unsigned char dollars_in_identifiers; /* allows '$' char in identifiers */
unsigned char ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
unsigned char reverse_funcargs; /* if true, evaluate last function arg first */
unsigned char gnu89_inline; /* treat 'extern inline' like 'static inline' */
unsigned char unwind_tables; /* create eh_frame section */
/* warning switches */
unsigned char warn_none;
unsigned char warn_all;
unsigned char warn_error;
unsigned char warn_write_strings;
unsigned char warn_unsupported;
unsigned char warn_implicit_function_declaration;
unsigned char warn_discarded_qualifiers;
#define WARN_ON 1 /* warning is on (-Woption) */
unsigned char warn_num; /* temp var for tcc_warning_c() */
unsigned char option_r; /* option -r */
unsigned char do_bench; /* option -bench */
unsigned char just_deps; /* option -M */
unsigned char gen_deps; /* option -MD */
unsigned char include_sys_deps; /* option -MD */
unsigned char gen_phony_deps; /* option -MP */
/* use GNU C extensions */
unsigned char gnu_ext;
/* use TinyCC extensions */
unsigned char tcc_ext;
unsigned char dflag; /* -dX value */
unsigned char Pflag; /* -P switch (LINE_MACRO_OUTPUT_FORMAT) */
unsigned char has_text_addr;
addr_t text_addr; /* address of text section */
unsigned section_align; /* section alignment */
int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
char *rpath; /* as specified on the command line (-Wl,-rpath=) */
char *entryname; /* "_start" unless set */
/* output type, see TCC_OUTPUT_XXX */
int output_type;
/* output format, see TCC_OUTPUT_FORMAT_xxx */
int output_format;
/* include paths */
char **include_paths;
int nb_include_paths;
char **sysinclude_paths;
int nb_sysinclude_paths;
/* library paths */
char **library_paths;
int nb_library_paths;
/* crt?.o object path */
char **crt_paths;
int nb_crt_paths;
/* -D / -U options */
CString cmdline_defs;
/* -include options */
CString cmdline_incl;
/* error handling */
void *error_opaque;
void (*error_func)(void *opaque, const char *msg);
int error_set_jmp_enabled;
jmp_buf error_jmp_buf;
int nb_errors;
/* output file for preprocessing (-E) */
FILE *ppfp;
/* for -MD/-MF: collected dependencies for this compilation */
char **target_deps;
int nb_target_deps;
/* compilation */
BufferedFile *include_stack[INCLUDE_STACK_SIZE];
BufferedFile **include_stack_ptr;
int ifdef_stack[IFDEF_STACK_SIZE];
int *ifdef_stack_ptr;
/* included files enclosed with #ifndef MACRO */
int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
CachedInclude **cached_includes;
int nb_cached_includes;
/* #pragma pack stack */
int pack_stack[PACK_STACK_SIZE];
int *pack_stack_ptr;
char **pragma_libs;
int nb_pragma_libs;
/* inline functions are stored as token lists and compiled last
only if referenced */
struct InlineFunc **inline_fns;
int nb_inline_fns;
/* sections */
Section **sections;
int nb_sections; /* number of sections, including first dummy section */
Section **priv_sections;
int nb_priv_sections; /* number of private sections */
/* predefined sections */
Section *text_section, *data_section, *rodata_section, *bss_section;
Section *common_section;
Section *cur_text_section; /* current section where function code is generated */
/* symbol section */
union { Section *symtab_section, *symtab; }; /* historical alias */
/* exported dynamic symbol section */
Section *dynsym;
/* got & plt handling */
Section *got, *plt;
/* exception handling */
Section *eh_frame_section;
Section *eh_frame_hdr_section;
unsigned long eh_start;
/* Is there a new undefined sym since last new_undef_sym() */
int new_undef_sym;
/* extra attributes (eg. GOT/PLT value) for symtab symbols */
struct sym_attr *sym_attrs;
int nb_sym_attrs;
/* ptr to next reloc entry reused */
ElfW_Rel *qrel;
#define qrel s1->qrel
#ifndef ELF_OBJ_ONLY
int nb_sym_versions;
struct sym_version *sym_versions;
int nb_sym_to_version;
int *sym_to_version;
int dt_verneednum;
Section *versym_section;
Section *verneed_section;
#endif
/* benchmark info */
int total_idents;
int total_lines;
unsigned int total_bytes;
unsigned int total_output[4];
/* used by tcc_load_ldscript */
int fd, cc;
/* for warnings/errors for object files */
const char *current_filename;
/* used by main and tcc_parse_args only */
struct filespec **files; /* files seen on command line */
int nb_files; /* number thereof */
int nb_libraries; /* number of libs thereof */
char *outfile; /* output filename */
char *deps_outfile; /* option -MF */
int argc;
char **argv;
CString linker_arg; /* collect -Wl options */
};
struct filespec {
char type;
char name[1];
};
/* The current value can be: */
#define VT_VALMASK 0x003f /* mask for value location, register or: */
#define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
#define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
#define VT_LOCAL 0x0032 /* offset on stack */
#define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
#define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
#define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
#define VT_LVAL 0x0100 /* var is an lvalue */
#define VT_SYM 0x0200 /* a symbol value is added */
#define VT_MUSTCAST 0x0C00 /* value must be casted to be correct (used for
char/short stored in integer registers) */
#define VT_NONCONST 0x1000 /* VT_CONST, but not an (C standard) integer
constant expression */
#define VT_MUSTBOUND 0x4000 /* bound checking must be done before
dereferencing value */
#define VT_BOUNDED 0x8000 /* value is bounded. The address of the
bounding function call point is in vc */
/* types */
#define VT_BTYPE 0x000f /* mask for basic type */
#define VT_VOID 0 /* void type */
#define VT_BYTE 1 /* signed byte type */
#define VT_SHORT 2 /* short type */
#define VT_INT 3 /* integer type */
#define VT_LLONG 4 /* 64 bit integer */
#define VT_PTR 5 /* pointer */
#define VT_FUNC 6 /* function type */
#define VT_STRUCT 7 /* struct/union definition */
#define VT_FLOAT 8 /* IEEE float */
#define VT_DOUBLE 9 /* IEEE double */
#define VT_LDOUBLE 10 /* IEEE long double */
#define VT_BOOL 11 /* ISOC99 boolean type */
#define VT_QLONG 13 /* 128-bit integer. Only used for x86-64 ABI */
#define VT_QFLOAT 14 /* 128-bit float. Only used for x86-64 ABI */
#define VT_UNSIGNED 0x0010 /* unsigned type */
#define VT_DEFSIGN 0x0020 /* explicitly signed or unsigned */
#define VT_ARRAY 0x0040 /* array type (also has VT_PTR) */
#define VT_BITFIELD 0x0080 /* bitfield modifier */
#define VT_CONSTANT 0x0100 /* const modifier */
#define VT_VOLATILE 0x0200 /* volatile modifier */
#define VT_VLA 0x0400 /* VLA type (also has VT_PTR and VT_ARRAY) */
#define VT_LONG 0x0800 /* long type (also has VT_INT rsp. VT_LLONG) */
/* storage */
#define VT_EXTERN 0x00001000 /* extern definition */
#define VT_STATIC 0x00002000 /* static variable */
#define VT_TYPEDEF 0x00004000 /* typedef definition */
#define VT_INLINE 0x00008000 /* inline definition */
/* currently unused: 0x000[1248]0000 */
#define VT_STRUCT_SHIFT 20 /* shift for bitfield shift values (32 - 2*6) */
#define VT_STRUCT_MASK (((1U << (6+6)) - 1) << VT_STRUCT_SHIFT | VT_BITFIELD)
#define BIT_POS(t) (((t) >> VT_STRUCT_SHIFT) & 0x3f)
#define BIT_SIZE(t) (((t) >> (VT_STRUCT_SHIFT + 6)) & 0x3f)
#define VT_UNION (1 << VT_STRUCT_SHIFT | VT_STRUCT)
#define VT_ENUM (2 << VT_STRUCT_SHIFT) /* integral type is an enum really */
#define VT_ENUM_VAL (3 << VT_STRUCT_SHIFT) /* integral type is an enum constant really */
#define IS_ENUM(t) ((t & VT_STRUCT_MASK) == VT_ENUM)
#define IS_ENUM_VAL(t) ((t & VT_STRUCT_MASK) == VT_ENUM_VAL)
#define IS_UNION(t) ((t & (VT_STRUCT_MASK|VT_BTYPE)) == VT_UNION)
#define VT_ATOMIC VT_VOLATILE
/* type mask (except storage) */
#define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE)
#define VT_TYPE (~(VT_STORAGE|VT_STRUCT_MASK))
/* symbol was created by tccasm.c first */
#define VT_ASM (VT_VOID | 1 << VT_STRUCT_SHIFT)
#define VT_ASM_FUNC (VT_ASM | 2 << VT_STRUCT_SHIFT)
#define IS_ASM_SYM(sym) (((sym)->type.t & (VT_BTYPE | VT_ASM)) == VT_ASM)
/* general: set/get the pseudo-bitfield value for bit-mask M */
#define BFVAL(M,N) ((unsigned)((M) & ~((M) << 1)) * (N))
#define BFGET(X,M) (((X) & (M)) / BFVAL(M,1))
#define BFSET(X,M,N) ((X) = ((X) & ~(M)) | BFVAL(M,N))
/* ------------ libtcc.c ------------ */
extern struct TCCState *tcc_state;
extern void** stk_data;
extern int nb_stk_data;
PUB_FUNC int _tcc_error_noabort(const char *fmt, ...) __attribute__ ((format (printf, (1), (2))));
PUB_FUNC __attribute__((noreturn)) void _tcc_error(const char *fmt, ...) __attribute__ ((format (printf, (1), (2))));
PUB_FUNC void _tcc_warning(const char *fmt, ...) __attribute__ ((format (printf, (1), (2))));
#define tcc_internal_error(msg) \
tcc_error("internal compiler error in %s:%d: %s", __FUNCTION__,__LINE__,msg)
/* other utilities */
void dynarray_add(void *ptab, int *nb_ptr, void *data);
void dynarray_reset(void *pp, int *n);
void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
int tcc_open(TCCState *s1, const char *filename);
void tcc_close(void);
/* mark a memory pointer on stack for cleanup after errors */
#define stk_push(p) dynarray_add(&stk_data, &nb_stk_data, p)
#define stk_pop() (--nb_stk_data)
/* mark CString on stack for cleanup errors */
#define cstr_new_s(cstr) (cstr_new(cstr), stk_push(&(cstr)->data))
#define cstr_free_s(cstr) (cstr_free(cstr), stk_pop())
int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
/* flags: */
#define AFF_PRINT_ERROR 0x10 /* print error if file not found */
#define AFF_TYPE_BIN 0x40 /* file to add is binary */
#define AFF_WHOLE_ARCHIVE 0x80 /* load all objects from archive */
/* s->filetype: */
#define AFF_TYPE_NONE 0
#define AFF_TYPE_C 1
#define AFF_TYPE_ASM 2
#define AFF_TYPE_ASMPP 4
#define AFF_TYPE_LIB 8
#define AFF_TYPE_MASK (15 | AFF_TYPE_BIN)
/* values from tcc_object_type(...) */
#define AFF_BINTYPE_REL 1
#define AFF_BINTYPE_DYN 2
#define AFF_BINTYPE_AR 3
#define AFF_BINTYPE_COFF 4
/* return value of tcc_add_file_internal(): 0, -1, or FILE_NOT_FOUND */
#define FILE_NOT_FOUND -2
#ifndef ELF_OBJ_ONLY
int tcc_add_crt(TCCState *s, const char *filename);
#endif
int tcc_add_support(TCCState *s1, const char *filename);
void tcc_add_pragma_libs(TCCState *s1);
PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
char *tcc_load_text(int fd);
#ifdef _WIN32
char *normalize_slashes(char *path);
#endif
/* for #pragma once */
int normalized_PATHCMP(const char *f1, const char *f2);
/* ------------ tccpp.c ------------ */
extern struct BufferedFile *file;
extern int tok;
extern CValue tokc;
extern const int *macro_ptr;
extern int parse_flags;
extern int tok_flags;
extern CString tokcstr; /* current parsed string, if any */
/* display benchmark infos */
extern int tok_ident;
extern TokenSym **table_ident;
extern int pp_expr;
#define TOK_FLAG_BOL 0x0001 /* beginning of line before */
#define TOK_FLAG_BOF 0x0002 /* beginning of file before */
#define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
#define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
#define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
#define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
token. line feed is also
returned at eof */
#define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
#define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
#define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
#define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
/* isidnum_table flags: */
#define IS_SPC 1
#define IS_ID 2
#define IS_NUM 4
enum line_macro_output_format {
LINE_MACRO_OUTPUT_FORMAT_GCC,
LINE_MACRO_OUTPUT_FORMAT_NONE,
LINE_MACRO_OUTPUT_FORMAT_STD,
LINE_MACRO_OUTPUT_FORMAT_P10 = 11
};
TokenSym *tok_alloc(const char *str, int len);
int tok_alloc_const(const char *str);
const char *get_tok_str(int v, CValue *cv);
void begin_macro(TokenString *str, int alloc);
void end_macro(void);
int set_idnum(int c, int val);
void tok_str_new(TokenString *s);
TokenString *tok_str_alloc(void);
void tok_str_free(TokenString *s);
void tok_str_free_str(int *str);
void tok_str_add(TokenString *s, int t);
void tok_str_add_tok(TokenString *s);
void define_push(int v, int macro_type, int *str, Sym *first_arg);
void define_undef(Sym *s);
Sym *define_find(int v);
void free_defines(Sym *b);
void parse_define(void);
void skip_to_eol(int warn);
void preprocess(int is_bof);
void next(void);
void unget_tok(int last_tok);
void preprocess_start(TCCState *s1, int filetype);
void preprocess_end(TCCState *s1);
void tccpp_new(TCCState *s);
void tccpp_delete(TCCState *s);
void tccpp_putfile(const char *filename);
int tcc_preprocess(TCCState *s1);
void skip(int c);
__attribute__((noreturn)) void expect(const char *msg);
void pp_error(CString *cs);
/* space excluding newline */
static inline int is_space(int ch) {
return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
}
static inline int isid(int c) {
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
}
static inline int isnum(int c) {
return c >= '0' && c <= '9';
}
static inline int isoct(int c) {
return c >= '0' && c <= '7';
}
static inline int toup(int c) {
return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
}
/* ------------ tccgen.c ------------ */
#define SYM_POOL_NB (8192 / sizeof(Sym))
extern Sym *global_stack;
extern Sym *local_stack;
extern Sym *local_label_stack;
extern Sym *global_label_stack;
extern Sym *define_stack;
extern CType int_type, func_old_type, char_pointer_type;
extern SValue *vtop;
extern int rsym, anon_sym, ind, loc;
extern char debug_modes;
extern int nocode_wanted; /* true if no code generation wanted for an expression */
extern int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
extern CType func_vt; /* current function return type (used by return instruction) */
extern int func_var; /* true if current function is variadic */
extern int func_vc;
extern int func_ind;
extern const char *funcname;
void tccgen_init(TCCState *s1);
int tccgen_compile(TCCState *s1);
void tccgen_finish(TCCState *s1);
void check_vstack(void);
int is_float(int t);
int ieee_finite(double d);
int exact_log2p1(int i);
void test_lvalue(void);
ElfSym *elfsym(Sym *);
void update_storage(Sym *sym);
void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore);
void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
#if PTR_SIZE == 4
void greloc(Section *s, Sym *sym, unsigned long offset, int type);
#endif
void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
void sym_free(Sym *sym);
Sym *sym_push(int v, CType *type, int r, int c);
void sym_pop(Sym **ptop, Sym *b, int keep);
Sym *sym_push2(Sym **ps, int v, int t, int c);
Sym *sym_find2(Sym *s, int v);
Sym *sym_find(int v);
Sym *label_find(int v);
Sym *label_push(Sym **ptop, int v, int flags);
void label_pop(Sym **ptop, Sym *slast, int keep);
Sym *struct_find(int v);
Sym *global_identifier_push(int v, int t, int c);
Sym *external_global_sym(int v, CType *type);
Sym *external_helper_sym(int v);
void vpush_helper_func(int v);
void vset(CType *type, int r, int v);
void vset_VT_CMP(int op);
void vpushi(int v);
void vpushv(SValue *v);
void vpushsym(CType *type, Sym *sym);
void vswap(void);
void vrott(int n);
void vrotb(int n);
void vrev(int n);
void vpop(void);
#if PTR_SIZE == 4
void lexpand(void);
#endif
void save_reg(int r);
void save_reg_upstack(int r, int n);
int get_reg(int rc);
void save_regs(int n);
void gaddrof(void);
int gv(int rc);
void gv2(int rc1, int rc2);
void gen_op(int op);
int type_size(CType *type, int *a);
void mk_pointer(CType *type);
void vstore(void);
void inc(int post, int c);
CString* parse_mult_str(const char *msg);
CString* parse_asm_str(void);
void indir(void);
void unary(void);
void gexpr(void);
int expr_const(void);
/* ------------ tccelf.c ------------ */
#define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
#define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
#define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
#define ARMAG "!<arch>\n" /* For COFF and a.out archives */
void tccelf_new(TCCState *s);
void tccelf_delete(TCCState *s);
void tccelf_begin_file(TCCState *s1);
void tccelf_end_file(TCCState *s1);
Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
void section_realloc(Section *sec, unsigned long new_size);
size_t section_add(Section *sec, addr_t size, int align);
void *section_ptr_add(Section *sec, addr_t size);
Section *find_section(TCCState *s1, const char *name);
void free_section(Section *s);
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);
void init_symtab(Section *s);
int put_elf_str(Section *s, const char *sym);
int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
int find_elf_sym(Section *s, const char *name);
void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
void resolve_common_syms(TCCState *s1);
void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
void relocate_sections(TCCState *s1);
ssize_t full_read(int fd, void *buf, size_t count);
void *load_data(int fd, unsigned long file_offset, unsigned long size);
int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
int tcc_load_archive(TCCState *s1, int fd, int alacarte);
void add_array(TCCState *s1, const char *sec, int c);
struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
addr_t get_sym_addr(TCCState *s, const char *name, int err, int forc);
void list_elf_symbols(TCCState *s, void *ctx,
void (*symbol_cb)(void *ctx, const char *name, const void *val));
int set_global_sym(TCCState *s1, const char *name, Section *sec, addr_t offs);
/* Browse each elem of type <type> in section <sec> starting at elem <startoff>
using variable <elem> */
#define for_each_elem(sec, startoff, elem, type) \
for (elem = (type *) sec->data + startoff; \
elem < (type *) (sec->data + sec->data_offset); elem++)
#ifndef ELF_OBJ_ONLY
int tcc_load_ldscript(TCCState *s1, int fd);
void tccelf_add_crtbegin(TCCState *s1);
void tccelf_add_crtend(TCCState *s1);
#endif
#ifndef TCC_TARGET_PE
void tcc_add_runtime(TCCState *s1);
#endif
int coff_load_file(TCCState *s1, int fd, const char *fname);
/* ------------ xxx-link.c ------------ */
#if !defined ELF_OBJ_ONLY
int code_reloc (int reloc_type);
int gotplt_entry_type (int reloc_type);
/* Whether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
that unknown relocation don't create a GOT or PLT entry */
enum gotplt_entry {
NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
};
#define NEED_RELOC_TYPE
unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
void relocate_plt(TCCState *s1);
void build_got_entries(TCCState *s1, int got_sym); /* in tccelf.c */
#define NEED_BUILD_GOT
#endif
void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
/* ------------ xxx-gen.c ------------ */
extern const char * const target_machine_defs;
extern const int reg_classes[NB_REGS];
void gsym_addr(int t, int a);
void gsym(int t);
void load(int r, SValue *sv);
void store(int r, SValue *v);
int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
void gfunc_call(int nb_args);
void gfunc_prolog(Sym *func_sym);
void gfunc_epilog(void);
void gen_fill_nops(int);
int gjmp(int t);
void gjmp_addr(int a);
int gjmp_cond(int op, int t);
int gjmp_append(int n, int t);
void gen_opi(int op);
void gen_opf(int op);
void gen_cvt_ftoi(int t);
void gen_cvt_itof(void);
void gen_cvt_ftof(void);
void ggoto(void);
void o(unsigned int c);
void gen_vla_sp_save(int addr);
void gen_vla_sp_restore(int addr);
void gen_vla_alloc(CType *type, int align);
static inline uint16_t read16le(unsigned char *p) {
return p[0] | (uint16_t)p[1] << 8;
}
static inline void write16le(unsigned char *p, uint16_t x) {
p[0] = x & 255; p[1] = x >> 8 & 255;
}
static inline uint32_t read32le(unsigned char *p) {
return read16le(p) | (uint32_t)read16le(p + 2) << 16;
}
static inline void write32le(unsigned char *p, uint32_t x) {
write16le(p, x); write16le(p + 2, x >> 16);
}
static inline void add32le(unsigned char *p, int32_t x) {
write32le(p, read32le(p) + x);
}
static inline uint64_t read64le(unsigned char *p) {
return read32le(p) | (uint64_t)read32le(p + 4) << 32;
}
static inline void write64le(unsigned char *p, uint64_t x) {
write32le(p, x); write32le(p + 4, x >> 32);
}
static inline void add64le(unsigned char *p, int64_t x) {
write64le(p, read64le(p) + x);
}
/* ------------ i386-gen.c ------------ */
void g(int c);
void gen_le16(int c);
void gen_le32(int c);
void gen_addr32(int r, Sym *sym, int c);
void gen_addrpc32(int r, Sym *sym, int c);
void gen_cvt_csti(int t);
/* ------------ tccasm.c ------------ */
void asm_instr(void);
void asm_global_instr(void);
int tcc_assemble(TCCState *s1, int do_preprocess);
int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
Sym* get_asm_sym(int name, Sym *csym);
void asm_expr(TCCState *s1, ExprValue *pe);
int asm_int_expr(TCCState *s1);
/* ------------ i386-asm.c ------------ */
void gen_expr32(ExprValue *pe);
void asm_opcode(TCCState *s1, int opcode);
int asm_parse_regvar(int t);
void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
void asm_clobber(uint8_t *clobber_regs, const char *str);
#define ST_ASM_SET 0x04
/* ------------ tccdbg.c ------------ */
#define eh_frame_hdr_section s1->eh_frame_hdr_section
/********************************************************/
#if CONFIG_TCC_SEMLOCK
#if defined _WIN32
typedef struct { int init; CRITICAL_SECTION cs; } TCCSem;
static inline void wait_sem(TCCSem *p) {
if (!p->init)
InitializeCriticalSection(&p->cs), p->init = 1;
EnterCriticalSection(&p->cs);
}
static inline void post_sem(TCCSem *p) {
LeaveCriticalSection(&p->cs);
}
#elif defined __APPLE__
#include <dispatch/dispatch.h>
typedef struct { int init; dispatch_semaphore_t sem; } TCCSem;
static inline void wait_sem(TCCSem *p) {
if (!p->init)
p->sem = dispatch_semaphore_create(1), p->init = 1;
dispatch_semaphore_wait(p->sem, DISPATCH_TIME_FOREVER);
}
static inline void post_sem(TCCSem *p) {
dispatch_semaphore_signal(p->sem);
}
#else
#include <semaphore.h>
#include <errno.h>
typedef struct { int init; sem_t sem; } TCCSem;
static inline void wait_sem(TCCSem *p) {
if (!p->init)
sem_init(&p->sem, 0, 1), p->init = 1;
while (sem_wait(&p->sem) < 0 && errno == EINTR);
}
static inline void post_sem(TCCSem *p) {
sem_post(&p->sem);
}
#endif
#define TCC_SEM(s) TCCSem s
#define WAIT_SEM wait_sem
#define POST_SEM post_sem
#else
#define TCC_SEM(s)
#define WAIT_SEM(p)
#define POST_SEM(p)
#endif
#define text_section TCC_STATE_VAR(text_section)
#define data_section TCC_STATE_VAR(data_section)
#define rodata_section TCC_STATE_VAR(rodata_section)
#define bss_section TCC_STATE_VAR(bss_section)
#define common_section TCC_STATE_VAR(common_section)
#define cur_text_section TCC_STATE_VAR(cur_text_section)
#define bounds_section TCC_STATE_VAR(bounds_section)
#define lbounds_section TCC_STATE_VAR(lbounds_section)
#define symtab_section TCC_STATE_VAR(symtab_section)
#define gnu_ext TCC_STATE_VAR(gnu_ext)
#define tcc_error_noabort TCC_SET_STATE(_tcc_error_noabort)
#define tcc_error TCC_SET_STATE(_tcc_error)
#define tcc_warning TCC_SET_STATE(_tcc_warning)
#define total_idents TCC_STATE_VAR(total_idents)
#define total_lines TCC_STATE_VAR(total_lines)
#define total_bytes TCC_STATE_VAR(total_bytes)
PUB_FUNC void tcc_enter_state(TCCState *s1);
PUB_FUNC void tcc_exit_state(TCCState *s1);
/* conditional warning depending on switch */
#define tcc_warning_c(sw) TCC_SET_STATE((\
tcc_state->warn_num = offsetof(TCCState, sw) \
- offsetof(TCCState, warn_none), _tcc_warning))
/********************************************************/
#endif /* _TCC_H */
#undef TCC_STATE_VAR
#undef TCC_SET_STATE
#ifdef USING_GLOBALS
# define TCC_STATE_VAR(sym) tcc_state->sym
# define TCC_SET_STATE(fn) fn
# undef USING_GLOBALS
# undef _tcc_error
#else
# define TCC_STATE_VAR(sym) s1->sym
# define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn)
# define _tcc_error use_tcc_error_noabort
#endif
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