/* * 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 #include #include #include #include #include #include #include #include #ifndef _WIN32 # define WIN32_LEAN_AND_MEAN 1 # include # include # ifndef CONFIG_TCC_STATIC # include # 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 # include # include /* open, close etc. */ # include /* getcwd */ # ifdef __GNUC__ # include # 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 # ifdef LIBTCC_AS_DLL # define LIBTCCAPI __declspec(dllexport) # define PUB_FUNC LIBTCCAPI # endif # define inp next_inp /* inp is an intrinsic on msvc/mingw */ # ifdef _MSC_VER # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name # pragma warning (disable : 4018) // signed/unsigned mismatch # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned # define ssize_t intptr_t # ifdef _X86_ # define __i386__ 1 # endif # ifdef _AMD64_ # define __x86_64__ 1 # endif # endif # undef CONFIG_TCC_STATIC #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 #ifdef _MSC_VER # define NORETURN __declspec(noreturn) # define ALIGNED(x) __declspec(align(x)) # define PRINTF_LIKE(x,y) #else # define NORETURN __attribute__((noreturn)) # define ALIGNED(x) __attribute__((aligned(x))) # define PRINTF_LIKE(x,y) __attribute__ ((format (printf, (x), (y)))) #endif /* gnu headers use to #define __attribute__ to empty for non-gcc compilers */ #ifdef __TINYC__ # undef __attribute__ #endif #ifdef _WIN32 # define IS_DIRSEP(c) (c == '/' || c == '\\') # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2]))) # define PATHCMP stricmp # define PATHSEP ";" #else # define IS_DIRSEP(c) (c == '/') # define IS_ABSPATH(p) IS_DIRSEP(p[0]) # define PATHCMP strcmp # define PATHSEP ":" #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 */ /* assembler debug */ /* #define ASM_DEBUG */ /* target selection */ /* #define TCC_TARGET_I386 *//* i386 code generator */ /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */ /* #define TCC_TARGET_ARM *//* ARMv4 code generator */ /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */ /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */ /* #define TCC_TARGET_RISCV64 *//* risc-v code generator */ /* default target is I386 */ #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \ !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \ !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_RISCV64) # if defined __x86_64__ # define TCC_TARGET_X86_64 # elif defined __arm__ # define TCC_TARGET_ARM # define TCC_ARM_EABI # define TCC_ARM_VFP # define TCC_ARM_HARDFLOAT # elif defined __aarch64__ # define TCC_TARGET_ARM64 # elif defined __riscv # define TCC_TARGET_RISCV64 # else # define TCC_TARGET_I386 # endif # ifdef _WIN32 # define TCC_TARGET_PE 1 # endif #endif /* only native compiler supports -run */ #if defined _WIN32 == defined TCC_TARGET_PE # if defined __i386__ && defined TCC_TARGET_I386 # define TCC_IS_NATIVE # elif defined __x86_64__ && defined TCC_TARGET_X86_64 # define TCC_IS_NATIVE # elif defined __arm__ && defined TCC_TARGET_ARM # define TCC_IS_NATIVE # elif defined __aarch64__ && defined TCC_TARGET_ARM64 # define TCC_IS_NATIVE # elif defined __riscv && defined __LP64__ && defined TCC_TARGET_RISCV64 # define TCC_IS_NATIVE # endif #endif #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT # define CONFIG_TCC_BACKTRACE # if (defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 || \ defined TCC_TARGET_ARM || defined TCC_TARGET_ARM64) || \ defined TCC_TARGET_RISCV64 \ && !defined TCC_UCLIBC && !defined TCC_MUSL # define CONFIG_TCC_BCHECK /* enable bound checking code */ # endif #endif #if defined TCC_TARGET_PE || defined TCC_TARGET_MACHO # define ELF_OBJ_ONLY /* create elf .o but native executables */ #endif /* ------------ path configuration ------------ */ #ifndef CONFIG_SYSROOT # define CONFIG_SYSROOT "" #endif #ifndef CONFIG_TCCDIR # 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 # if defined TCC_TARGET_PE || defined _WIN32 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include"PATHSEP"{B}/include/winapi" # else # define CONFIG_TCC_SYSINCLUDEPATHS \ "{B}/include" \ ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \ ":" ALSO_TRIPLET(CONFIG_SYSROOT CONFIG_USR_INCLUDE) # endif #endif /* library search paths */ #ifndef CONFIG_TCC_LIBPATHS # ifdef TCC_TARGET_PE # define CONFIG_TCC_LIBPATHS "{B}/lib" # else # define CONFIG_TCC_LIBPATHS \ ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \ ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \ ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR) # endif #endif /* name of ELF interpreter */ #ifndef CONFIG_TCC_ELFINTERP # if defined __FreeBSD__ # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1" # elif defined __FreeBSD_kernel__ # if defined(TCC_TARGET_X86_64) # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1" # else # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1" # endif # elif defined __DragonFly__ # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2" # elif defined __NetBSD__ # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so" # elif defined __GNU__ # define CONFIG_TCC_ELFINTERP "/lib/ld.so" # elif defined(TCC_TARGET_PE) # define CONFIG_TCC_ELFINTERP "-" # elif defined(TCC_UCLIBC) # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */ # elif defined TCC_TARGET_ARM64 # if defined(TCC_MUSL) # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1" # else # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1" # endif # elif defined(TCC_TARGET_X86_64) # if defined(TCC_MUSL) # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1" # else # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2" # endif # elif defined(TCC_TARGET_RISCV64) # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-riscv64-lp64d.so.1" # elif !defined(TCC_ARM_EABI) # if defined(TCC_MUSL) # if defined(TCC_TARGET_I386) # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-i386.so.1" # else # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1" # endif # else # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2" # endif # endif #endif /* var elf_interp dans *-gen.c */ #ifdef CONFIG_TCC_ELFINTERP # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP #else # define DEFAULT_ELFINTERP(s) default_elfinterp(s) #endif /* (target specific) libtcc1.a */ #ifndef TCC_LIBTCC1 # define TCC_LIBTCC1 "libtcc1.a" #endif /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */ #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1" #endif /* -------------------------------------------- */ #include "libtcc.h" #include "elf.h" #include "stab.h" /* -------------------------------------------- */ #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */ # define PUB_FUNC #endif #ifndef ONE_SOURCE # define ONE_SOURCE 1 #endif /* support using libtcc from threads */ #define CONFIG_TCC_SEMLOCK #if ONE_SOURCE #define ST_INLN static inline #define ST_FUNC static #define ST_DATA static #else #define ST_INLN #define ST_FUNC #define ST_DATA extern #endif #ifdef TCC_PROFILE /* profile all functions */ # define static #endif /* -------------------------------------------- */ /* include the target specific definitions */ #define TARGET_DEFS_ONLY #ifdef TCC_TARGET_I386 # include "i386-gen.c" # include "i386-link.c" #elif defined TCC_TARGET_X86_64 # include "x86_64-gen.c" # include "x86_64-link.c" #elif defined TCC_TARGET_ARM # include "arm-gen.c" # include "arm-link.c" # include "arm-asm.c" #elif defined TCC_TARGET_ARM64 # include "arm64-gen.c" # include "arm64-link.c" # include "arm-asm.c" #elif defined TCC_TARGET_C67 # define TCC_TARGET_COFF # include "coff.h" # include "c67-gen.c" # include "c67-link.c" #elif defined(TCC_TARGET_RISCV64) # include "riscv64-gen.c" # include "riscv64-link.c" # include "riscv64-asm.c" #else #error unknown target #endif #undef TARGET_DEFS_ONLY /* -------------------------------------------- */ #if PTR_SIZE == 8 # define ELFCLASSW ELFCLASS64 # define ElfW(type) Elf##64##_##type # define ELFW(type) ELF##64##_##type # define ElfW_Rel ElfW(Rela) # define SHT_RELX SHT_RELA # define REL_SECTION_FMT ".rela%s" #else # 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" #endif /* target address type */ #define addr_t ElfW(Addr) #define ElfSym ElfW(Sym) #if PTR_SIZE == 8 && !defined TCC_TARGET_PE # define LONG_SIZE 8 #else # define LONG_SIZE 4 #endif /* -------------------------------------------- */ #define INCLUDE_STACK_SIZE 32 #define IFDEF_STACK_SIZE 64 #define VSTACK_SIZE 256 #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; #ifdef TCC_TARGET_PE typedef unsigned short nwchar_t; #else typedef int nwchar_t; #endif typedef struct CString { int size; /* size in bytes */ void *data; /* either 'char *' or 'nwchar_t *' */ int size_allocated; } CString; /* 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 { const void *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, xxxx : 3; /* 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 */ 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 *ncl; /* next cleanup */ }; CType type; /* associated type */ union { struct Sym *next; /* next related symbol (for fields and anoms) */ struct Sym *cleanupstate; /* in defined labels */ int asm_label; /* associated asm label */ }; 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; 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; typedef struct DLLReference { int level; void *handle; char name[1]; } DLLReference; /* -------------------------------------------------- */ #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 */ /* field 'Sym.t' for macros */ #define MACRO_OBJ 0 /* object like macro */ #define MACRO_FUNC 1 /* function like macro */ /* 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 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 */ 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 lastlen; 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 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 #ifdef CONFIG_TCC_ASM 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; 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 */ } ASMOperand; #endif /* extra symbol attributes (not in symbol table) */ struct sym_attr { unsigned got_offset; unsigned plt_offset; int plt_sym; int dyn_index; #ifdef TCC_TARGET_ARM unsigned char plt_thumb_stub:1; #endif }; 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 static_link; /* if true, static linking is performed */ unsigned char rdynamic; /* if true, all symbols are exported */ 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, ... */ char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */ char *soname; /* as specified on the command line (-soname) */ char *rpath; /* as specified on the command line (-Wl,-rpath=) */ /* output type, see TCC_OUTPUT_XXX */ int output_type; /* output format, see TCC_OUTPUT_FORMAT_xxx */ int output_format; /* 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 */ /* warning switches */ unsigned char warn_write_strings; unsigned char warn_unsupported; unsigned char warn_error; unsigned char warn_none; unsigned char warn_implicit_function_declaration; unsigned char warn_gcc_compat; /* compile with debug symbol (and use them if error during execution) */ unsigned char do_debug; unsigned char do_backtrace; #ifdef CONFIG_TCC_BCHECK /* compile with built-in memory and bounds checker */ unsigned char do_bounds_check; #endif #ifdef TCC_TARGET_ARM enum float_abi float_abi; /* float ABI of the generated code*/ #endif int run_test; /* nth test to run with -dt -run */ addr_t text_addr; /* address of text section */ unsigned char has_text_addr; unsigned section_align; /* section alignment */ /* use GNU C extensions */ unsigned char gnu_ext; /* use TinyCC extensions */ unsigned char tcc_ext; char *init_symbol; /* symbols to call at load-time (not used currently) */ char *fini_symbol; /* symbols to call at unload-time (not used currently) */ #ifdef TCC_TARGET_I386 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */ #endif #ifdef TCC_TARGET_X86_64 unsigned char nosse; /* For -mno-sse support. */ #endif /* array of all loaded dlls (including those referenced by loaded dlls) */ DLLReference **loaded_dlls; int nb_loaded_dlls; /* 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; enum { LINE_MACRO_OUTPUT_FORMAT_GCC, LINE_MACRO_OUTPUT_FORMAT_NONE, LINE_MACRO_OUTPUT_FORMAT_STD, LINE_MACRO_OUTPUT_FORMAT_P10 = 11 } Pflag; /* -P switch */ char dflag; /* -dX value */ /* 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 */ /* got & plt handling */ Section *got; Section *plt; /* predefined sections */ Section *text_section, *data_section, *bss_section; Section *common_section; Section *cur_text_section; /* current section where function code is generated */ #ifdef CONFIG_TCC_BCHECK /* bound check related sections */ Section *bounds_section; /* contains global data bound description */ Section *lbounds_section; /* contains local data bound description */ #endif /* symbol sections */ Section *symtab_section; /* debug sections */ Section *stab_section; /* Is there a new undefined sym since last new_undef_sym() */ int new_undef_sym; /* temporary dynamic symbol sections (for dll loading) */ Section *dynsymtab_section; /* exported dynamic symbol section */ Section *dynsym; /* copy of the global symtab_section variable */ Section *symtab; /* 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 #ifdef TCC_TARGET_PE /* PE info */ int pe_subsystem; unsigned pe_characteristics; unsigned pe_file_align; unsigned pe_stack_size; addr_t pe_imagebase; # ifdef TCC_TARGET_X86_64 Section *uw_pdata; int uw_sym; unsigned uw_offs; # endif #endif #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 #ifdef TCC_IS_NATIVE const char *runtime_main; void **runtime_mem; int nb_runtime_mem; #endif #ifdef CONFIG_TCC_BACKTRACE int rt_num_callers; #endif int fd, cc; /* used by tcc_load_ldscript */ /* benchmark info */ int total_idents; int total_lines; int total_bytes; /* option -dnum (for general development purposes) */ int g_debug; /* 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 */ unsigned char option_r; /* option -r */ unsigned char do_bench; /* option -bench */ int gen_deps; /* option -MD */ char *deps_outfile; /* option -MF */ int argc; char **argv; }; 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_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) /* 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 | VT_UNSIGNED) #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)) /* token values */ /* conditional ops */ #define TOK_LAND 0x90 #define TOK_LOR 0x91 /* warning: the following compare tokens depend on i386 asm code */ #define TOK_ULT 0x92 #define TOK_UGE 0x93 #define TOK_EQ 0x94 #define TOK_NE 0x95 #define TOK_ULE 0x96 #define TOK_UGT 0x97 #define TOK_Nset 0x98 #define TOK_Nclear 0x99 #define TOK_LT 0x9c #define TOK_GE 0x9d #define TOK_LE 0x9e #define TOK_GT 0x9f #define TOK_ISCOND(t) (t >= TOK_LAND && t <= TOK_GT) #define TOK_DEC 0x80 /* -- */ #define TOK_MID 0x81 /* inc/dec, to void constant */ #define TOK_INC 0x82 /* ++ */ #define TOK_UDIV 0x83 /* unsigned division */ #define TOK_UMOD 0x84 /* unsigned modulo */ #define TOK_PDIV 0x85 /* fast division with undefined rounding for pointers */ #define TOK_UMULL 0x86 /* unsigned 32x32 -> 64 mul */ #define TOK_ADDC1 0x87 /* add with carry generation */ #define TOK_ADDC2 0x88 /* add with carry use */ #define TOK_SUBC1 0x89 /* add with carry generation */ #define TOK_SUBC2 0x8a /* add with carry use */ #define TOK_SHL '<' /* shift left */ #define TOK_SAR '>' /* signed shift right */ #define TOK_SHR 0x8b /* unsigned shift right */ #define TOK_ARROW 0xa0 /* -> */ #define TOK_DOTS 0xa1 /* three dots */ #define TOK_TWODOTS 0xa2 /* C++ token ? */ #define TOK_TWOSHARPS 0xa3 /* ## preprocessing token */ #define TOK_PLCHLDR 0xa4 /* placeholder token as defined in C99 */ #define TOK_NOSUBST 0xa5 /* means following token has already been pp'd */ #define TOK_PPJOIN 0xa6 /* A '##' in the right position to mean pasting */ /* assignment operators */ #define TOK_A_ADD 0xb0 #define TOK_A_SUB 0xb1 #define TOK_A_MUL 0xb2 #define TOK_A_DIV 0xb3 #define TOK_A_MOD 0xb4 #define TOK_A_AND 0xb5 #define TOK_A_OR 0xb6 #define TOK_A_XOR 0xb7 #define TOK_A_SHL 0xb8 #define TOK_A_SAR 0xb9 #define TOK_ASSIGN(t) (t >= TOK_A_ADD && t <= TOK_A_SAR) #define TOK_ASSIGN_OP(t) ("+-*/%&|^<>"[t - TOK_A_ADD]) /* tokens that carry values (in additional token string space / tokc) --> */ #define TOK_CCHAR 0xc0 /* char constant in tokc */ #define TOK_LCHAR 0xc1 #define TOK_CINT 0xc2 /* number in tokc */ #define TOK_CUINT 0xc3 /* unsigned int constant */ #define TOK_CLLONG 0xc4 /* long long constant */ #define TOK_CULLONG 0xc5 /* unsigned long long constant */ #define TOK_CLONG 0xc6 /* long constant */ #define TOK_CULONG 0xc7 /* unsigned long constant */ #define TOK_STR 0xc8 /* pointer to string in tokc */ #define TOK_LSTR 0xc9 #define TOK_CFLOAT 0xca /* float constant */ #define TOK_CDOUBLE 0xcb /* double constant */ #define TOK_CLDOUBLE 0xcc /* long double constant */ #define TOK_PPNUM 0xcd /* preprocessor number */ #define TOK_PPSTR 0xce /* preprocessor string */ #define TOK_LINENUM 0xcf /* line number info */ #define TOK_HAS_VALUE(t) (t >= TOK_CCHAR && t <= TOK_LINENUM) #define TOK_EOF (-1) /* end of file */ #define TOK_LINEFEED 10 /* line feed */ /* all identifiers and strings have token above that */ #define TOK_IDENT 256 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x) #define TOK_ASM_int TOK_INT #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x) #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte #define TOK_ASMDIR_LAST TOK_ASMDIR_section #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 /* only used for i386 asm opcodes definitions */ #define DEF_BWL(x) \ DEF(TOK_ASM_ ## x ## b, #x "b") \ DEF(TOK_ASM_ ## x ## w, #x "w") \ DEF(TOK_ASM_ ## x ## l, #x "l") \ DEF(TOK_ASM_ ## x, #x) #define DEF_WL(x) \ DEF(TOK_ASM_ ## x ## w, #x "w") \ DEF(TOK_ASM_ ## x ## l, #x "l") \ DEF(TOK_ASM_ ## x, #x) #ifdef TCC_TARGET_X86_64 # define DEF_BWLQ(x) \ DEF(TOK_ASM_ ## x ## b, #x "b") \ DEF(TOK_ASM_ ## x ## w, #x "w") \ DEF(TOK_ASM_ ## x ## l, #x "l") \ DEF(TOK_ASM_ ## x ## q, #x "q") \ DEF(TOK_ASM_ ## x, #x) # define DEF_WLQ(x) \ DEF(TOK_ASM_ ## x ## w, #x "w") \ DEF(TOK_ASM_ ## x ## l, #x "l") \ DEF(TOK_ASM_ ## x ## q, #x "q") \ DEF(TOK_ASM_ ## x, #x) # define DEF_BWLX DEF_BWLQ # define DEF_WLX DEF_WLQ /* number of sizes + 1 */ # define NBWLX 5 #else # define DEF_BWLX DEF_BWL # define DEF_WLX DEF_WL /* number of sizes + 1 */ # define NBWLX 4 #endif #define DEF_FP1(x) \ DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \ DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \ DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \ DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s") #define DEF_FP(x) \ DEF(TOK_ASM_ ## f ## x, "f" #x ) \ DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \ DEF_FP1(x) #define DEF_ASMTEST(x,suffix) \ DEF_ASM(x ## o ## suffix) \ DEF_ASM(x ## no ## suffix) \ DEF_ASM(x ## b ## suffix) \ DEF_ASM(x ## c ## suffix) \ DEF_ASM(x ## nae ## suffix) \ DEF_ASM(x ## nb ## suffix) \ DEF_ASM(x ## nc ## suffix) \ DEF_ASM(x ## ae ## suffix) \ DEF_ASM(x ## e ## suffix) \ DEF_ASM(x ## z ## suffix) \ DEF_ASM(x ## ne ## suffix) \ DEF_ASM(x ## nz ## suffix) \ DEF_ASM(x ## be ## suffix) \ DEF_ASM(x ## na ## suffix) \ DEF_ASM(x ## nbe ## suffix) \ DEF_ASM(x ## a ## suffix) \ DEF_ASM(x ## s ## suffix) \ DEF_ASM(x ## ns ## suffix) \ DEF_ASM(x ## p ## suffix) \ DEF_ASM(x ## pe ## suffix) \ DEF_ASM(x ## np ## suffix) \ DEF_ASM(x ## po ## suffix) \ DEF_ASM(x ## l ## suffix) \ DEF_ASM(x ## nge ## suffix) \ DEF_ASM(x ## nl ## suffix) \ DEF_ASM(x ## ge ## suffix) \ DEF_ASM(x ## le ## suffix) \ DEF_ASM(x ## ng ## suffix) \ DEF_ASM(x ## nle ## suffix) \ DEF_ASM(x ## g ## suffix) #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */ enum tcc_token { TOK_LAST = TOK_IDENT - 1 #define DEF(id, str) ,id #include "tcctok.h" #undef DEF }; /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */ #define TOK_UIDENT TOK_DEFINE /* ------------ libtcc.c ------------ */ ST_DATA struct TCCState *tcc_state; /* public functions currently used by the tcc main function */ ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s); ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s); ST_FUNC char *pstrncpy(char *out, const char *in, size_t num); PUB_FUNC char *tcc_basename(const char *name); PUB_FUNC char *tcc_fileextension (const char *name); #ifndef MEM_DEBUG PUB_FUNC void tcc_free(void *ptr); PUB_FUNC void *tcc_malloc(unsigned long size); PUB_FUNC void *tcc_mallocz(unsigned long size); PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size); PUB_FUNC char *tcc_strdup(const char *str); #else #define tcc_free(ptr) tcc_free_debug(ptr) #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__) #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__) #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__) #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__) PUB_FUNC void tcc_free_debug(void *ptr); PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line); PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line); PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line); PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line); #endif #define free(p) use_tcc_free(p) #define malloc(s) use_tcc_malloc(s) #define realloc(p, s) use_tcc_realloc(p, s) #undef strdup #define strdup(s) use_tcc_strdup(s) PUB_FUNC void _tcc_error_noabort(const char *fmt, ...) PRINTF_LIKE(1,2); PUB_FUNC NORETURN void _tcc_error(const char *fmt, ...) PRINTF_LIKE(1,2); PUB_FUNC void _tcc_warning(const char *fmt, ...) PRINTF_LIKE(1,2); /* other utilities */ ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data); ST_FUNC void dynarray_reset(void *pp, int *n); ST_INLN void cstr_ccat(CString *cstr, int ch); ST_FUNC void cstr_cat(CString *cstr, const char *str, int len); ST_FUNC void cstr_wccat(CString *cstr, int ch); ST_FUNC void cstr_new(CString *cstr); ST_FUNC void cstr_free(CString *cstr); ST_FUNC int cstr_printf(CString *cs, const char *fmt, ...) PRINTF_LIKE(2,3); ST_FUNC void cstr_reset(CString *cstr); ST_INLN void sym_free(Sym *sym); ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, int c); ST_FUNC Sym *sym_find2(Sym *s, int v); ST_FUNC Sym *sym_push(int v, CType *type, int r, int c); ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep); ST_INLN Sym *struct_find(int v); ST_INLN Sym *sym_find(int v); ST_FUNC Sym *global_identifier_push(int v, int t, int c); ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen); ST_FUNC int tcc_open(TCCState *s1, const char *filename); ST_FUNC void tcc_close(void); ST_FUNC 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_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */ #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_C67 4 #ifndef ELF_OBJ_ONLY ST_FUNC int tcc_add_crt(TCCState *s, const char *filename); #endif #ifndef TCC_TARGET_MACHO ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags); #endif #ifdef CONFIG_TCC_BCHECK ST_FUNC void tcc_add_bcheck(TCCState *s1); #endif #ifdef CONFIG_TCC_BACKTRACE ST_FUNC void tcc_add_btstub(TCCState *s1); #endif ST_FUNC 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); PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind); #ifdef _WIN32 ST_FUNC char *normalize_slashes(char *path); #endif /* tcc_parse_args return codes: */ #define OPT_HELP 1 #define OPT_HELP2 2 #define OPT_V 3 #define OPT_PRINT_DIRS 4 #define OPT_AR 5 #define OPT_IMPDEF 6 #define OPT_M32 32 #define OPT_M64 64 /* ------------ tccpp.c ------------ */ ST_DATA struct BufferedFile *file; ST_DATA int ch, tok; ST_DATA CValue tokc; ST_DATA const int *macro_ptr; ST_DATA int parse_flags; ST_DATA int tok_flags; ST_DATA CString tokcstr; /* current parsed string, if any */ /* display benchmark infos */ ST_DATA int tok_ident; ST_DATA TokenSym **table_ident; #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 TOK_FLAG_EOF 0x0008 /* end of file */ #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 ST_FUNC TokenSym *tok_alloc(const char *str, int len); ST_FUNC const char *get_tok_str(int v, CValue *cv); ST_FUNC void begin_macro(TokenString *str, int alloc); ST_FUNC void end_macro(void); ST_FUNC int set_idnum(int c, int val); ST_INLN void tok_str_new(TokenString *s); ST_FUNC TokenString *tok_str_alloc(void); ST_FUNC void tok_str_free(TokenString *s); ST_FUNC void tok_str_free_str(int *str); ST_FUNC void tok_str_add(TokenString *s, int t); ST_FUNC void tok_str_add_tok(TokenString *s); ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg); ST_FUNC void define_undef(Sym *s); ST_INLN Sym *define_find(int v); ST_FUNC void free_defines(Sym *b); ST_FUNC Sym *label_find(int v); ST_FUNC Sym *label_push(Sym **ptop, int v, int flags); ST_FUNC void label_pop(Sym **ptop, Sym *slast, int keep); ST_FUNC void parse_define(void); ST_FUNC void preprocess(int is_bof); ST_FUNC void next(void); ST_INLN void unget_tok(int last_tok); ST_FUNC void preprocess_start(TCCState *s1, int filetype); ST_FUNC void preprocess_end(TCCState *s1); ST_FUNC void tccpp_new(TCCState *s); ST_FUNC void tccpp_delete(TCCState *s); ST_FUNC int tcc_preprocess(TCCState *s1); ST_FUNC void skip(int c); ST_FUNC NORETURN void expect(const char *msg); /* 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)) ST_DATA Sym *global_stack; ST_DATA Sym *local_stack; ST_DATA Sym *local_label_stack; ST_DATA Sym *global_label_stack; ST_DATA Sym *define_stack; ST_DATA CType int_type, func_old_type, char_pointer_type; ST_DATA SValue *vtop; ST_DATA int rsym, anon_sym, ind, loc; ST_DATA int const_wanted; /* true if constant wanted */ ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */ ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */ ST_DATA CType func_vt; /* current function return type (used by return instruction) */ ST_DATA int func_var; /* true if current function is variadic */ ST_DATA int func_vc; ST_DATA const char *funcname; ST_FUNC void tcc_debug_start(TCCState *s1); ST_FUNC void tcc_debug_end(TCCState *s1); ST_FUNC void tcc_debug_bincl(TCCState *s1); ST_FUNC void tcc_debug_eincl(TCCState *s1); ST_FUNC void tcc_debug_putfile(TCCState *s1, const char *filename); ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym); ST_FUNC void tcc_debug_funcend(TCCState *s1, int size); ST_FUNC void tcc_debug_line(TCCState *s1); ST_FUNC void tccgen_init(TCCState *s1); ST_FUNC int tccgen_compile(TCCState *s1); ST_FUNC void tccgen_finish(TCCState *s1); ST_FUNC void check_vstack(void); ST_INLN int is_float(int t); ST_FUNC int ieee_finite(double d); ST_FUNC int exact_log2p1(int i); ST_FUNC void test_lvalue(void); ST_FUNC void vpushi(int v); ST_FUNC ElfSym *elfsym(Sym *); ST_FUNC void update_storage(Sym *sym); ST_FUNC Sym *external_global_sym(int v, CType *type); ST_FUNC void vset(CType *type, int r, int v); ST_FUNC void vset_VT_CMP(int op); ST_FUNC void vswap(void); ST_FUNC void vpush_global_sym(CType *type, int v); ST_FUNC void vrote(SValue *e, int n); ST_FUNC void vrott(int n); ST_FUNC void vrotb(int n); #if PTR_SIZE == 4 ST_FUNC void lexpand(void); #endif #ifdef TCC_TARGET_ARM ST_FUNC int get_reg_ex(int rc, int rc2); #endif ST_FUNC void vpushv(SValue *v); ST_FUNC void save_reg(int r); ST_FUNC void save_reg_upstack(int r, int n); ST_FUNC int get_reg(int rc); ST_FUNC void save_regs(int n); ST_FUNC void gaddrof(void); ST_FUNC int gv(int rc); ST_FUNC void gv2(int rc1, int rc2); ST_FUNC void vpop(void); ST_FUNC void gen_op(int op); ST_FUNC int type_size(CType *type, int *a); ST_FUNC void mk_pointer(CType *type); ST_FUNC void vstore(void); ST_FUNC void inc(int post, int c); ST_FUNC void parse_mult_str (CString *astr, const char *msg); ST_FUNC void parse_asm_str(CString *astr); ST_FUNC void indir(void); ST_FUNC void unary(void); ST_FUNC void gexpr(void); ST_FUNC int expr_const(void); #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size); #endif #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE ST_FUNC int classify_x86_64_va_arg(CType *ty); #endif #ifdef CONFIG_TCC_BCHECK ST_FUNC void gbound_args(int nb_args); ST_DATA int func_bound_add_epilog; #endif /* ------------ 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 "!\012" /* For COFF and a.out archives */ typedef struct { unsigned int n_strx; /* index into string table of name */ unsigned char n_type; /* type of symbol */ unsigned char n_other; /* misc info (usually empty) */ unsigned short n_desc; /* description field */ unsigned int n_value; /* value of symbol */ } Stab_Sym; ST_FUNC void tccelf_new(TCCState *s); ST_FUNC void tccelf_delete(TCCState *s); ST_FUNC void tccelf_stab_new(TCCState *s); ST_FUNC void tccelf_begin_file(TCCState *s1); ST_FUNC void tccelf_end_file(TCCState *s1); #ifdef CONFIG_TCC_BCHECK ST_FUNC void tccelf_bounds_new(TCCState *s); #endif ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags); ST_FUNC void section_realloc(Section *sec, unsigned long new_size); ST_FUNC size_t section_add(Section *sec, addr_t size, int align); ST_FUNC void *section_ptr_add(Section *sec, addr_t size); ST_FUNC void section_reserve(Section *sec, unsigned long size); ST_FUNC Section *find_section(TCCState *s1, const char *name); 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); ST_FUNC void put_extern_sym2(Sym *sym, int sh_num, addr_t value, unsigned long size, int can_add_underscore); ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size); #if PTR_SIZE == 4 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type); #endif ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend); ST_FUNC int put_elf_str(Section *s, const char *sym); ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name); ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name); ST_FUNC int find_elf_sym(Section *s, const char *name); ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol); ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend); ST_FUNC void put_stabs(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value); ST_FUNC void put_stabs_r(TCCState *s1, const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index); ST_FUNC void put_stabn(TCCState *s1, int type, int other, int desc, int value); ST_FUNC void resolve_common_syms(TCCState *s1); ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve); ST_FUNC void relocate_section(TCCState *s1, Section *s); ST_FUNC ssize_t full_read(int fd, void *buf, size_t count); ST_FUNC void *load_data(int fd, unsigned long file_offset, unsigned long size); ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h); ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset); ST_FUNC int tcc_load_archive(TCCState *s1, int fd, int alacarte); ST_FUNC void add_array(TCCState *s1, const char *sec, int c); #if !defined(ELF_OBJ_ONLY) || (defined(TCC_TARGET_MACHO) && defined TCC_IS_NATIVE) ST_FUNC void build_got_entries(TCCState *s1); #endif ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc); ST_FUNC void squeeze_multi_relocs(Section *sec, size_t oldrelocoffset); ST_FUNC addr_t get_sym_addr(TCCState *s, const char *name, int err, int forc); ST_FUNC void list_elf_symbols(TCCState *s, void *ctx, void (*symbol_cb)(void *ctx, const char *name, const void *val)); ST_FUNC int set_global_sym(TCCState *s1, const char *name, Section *sec, addr_t offs); /* Browse each elem of type in section starting at elem using variable */ #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 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level); ST_FUNC int tcc_load_ldscript(TCCState *s1, int fd); #endif #ifndef TCC_TARGET_PE ST_FUNC void tcc_add_runtime(TCCState *s1); #endif /* ------------ xxx-link.c ------------ */ /* 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) */ }; #if !defined(ELF_OBJ_ONLY) || defined(TCC_TARGET_MACHO) ST_FUNC int code_reloc (int reloc_type); ST_FUNC int gotplt_entry_type (int reloc_type); #if !defined(TCC_TARGET_MACHO) || defined TCC_IS_NATIVE ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr); ST_FUNC void relocate_plt(TCCState *s1); #endif #endif ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val); /* ------------ xxx-gen.c ------------ */ ST_DATA const int reg_classes[NB_REGS]; ST_FUNC void gsym_addr(int t, int a); ST_FUNC void gsym(int t); ST_FUNC void load(int r, SValue *sv); ST_FUNC void store(int r, SValue *v); ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize); ST_FUNC void gfunc_call(int nb_args); ST_FUNC void gfunc_prolog(Sym *func_sym); ST_FUNC void gfunc_epilog(void); ST_FUNC void gen_fill_nops(int); ST_FUNC int gjmp(int t); ST_FUNC void gjmp_addr(int a); ST_FUNC int gjmp_cond(int op, int t); ST_FUNC int gjmp_append(int n, int t); ST_FUNC void gen_opi(int op); ST_FUNC void gen_opf(int op); ST_FUNC void gen_cvt_ftoi(int t); ST_FUNC void gen_cvt_itof(int t); ST_FUNC void gen_cvt_ftof(int t); ST_FUNC void ggoto(void); #ifndef TCC_TARGET_C67 ST_FUNC void o(unsigned int c); #endif ST_FUNC void gen_vla_sp_save(int addr); ST_FUNC void gen_vla_sp_restore(int addr); ST_FUNC 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 ------------ */ #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 ST_FUNC void g(int c); ST_FUNC void gen_le16(int c); ST_FUNC void gen_le32(int c); ST_FUNC void gen_addr32(int r, Sym *sym, int c); ST_FUNC void gen_addrpc32(int r, Sym *sym, int c); ST_FUNC void gen_cvt_csti(int t); #endif /* ------------ x86_64-gen.c ------------ */ #ifdef TCC_TARGET_X86_64 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c); ST_FUNC void gen_opl(int op); #ifdef TCC_TARGET_PE ST_FUNC void gen_vla_result(int addr); #endif ST_FUNC void gen_cvt_sxtw(void); ST_FUNC void gen_cvt_csti(int t); #endif /* ------------ arm-gen.c ------------ */ #ifdef TCC_TARGET_ARM #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP) PUB_FUNC const char *default_elfinterp(struct TCCState *s); #endif ST_FUNC void arm_init(struct TCCState *s); #endif /* ------------ arm64-gen.c ------------ */ #ifdef TCC_TARGET_ARM64 ST_FUNC void gen_opl(int op); ST_FUNC void gfunc_return(CType *func_type); ST_FUNC void gen_va_start(void); ST_FUNC void gen_va_arg(CType *t); ST_FUNC void gen_clear_cache(void); ST_FUNC void gen_cvt_sxtw(void); ST_FUNC void gen_cvt_csti(int t); #endif /* ------------ riscv64-gen.c ------------ */ #ifdef TCC_TARGET_RISCV64 ST_FUNC void gen_opl(int op); //ST_FUNC void gfunc_return(CType *func_type); ST_FUNC void gen_va_start(void); ST_FUNC void arch_transfer_ret_regs(int); ST_FUNC void gen_cvt_sxtw(void); #endif /* ------------ c67-gen.c ------------ */ #ifdef TCC_TARGET_C67 #endif /* ------------ tcccoff.c ------------ */ #ifdef TCC_TARGET_COFF ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f); ST_FUNC int tcc_load_coff(TCCState * s1, int fd); #endif /* ------------ tccasm.c ------------ */ ST_FUNC void asm_instr(void); ST_FUNC void asm_global_instr(void); #ifdef CONFIG_TCC_ASM ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp); ST_FUNC Sym* get_asm_sym(int name, Sym *csym); ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe); ST_FUNC int asm_int_expr(TCCState *s1); ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess); /* ------------ i386-asm.c ------------ */ ST_FUNC void gen_expr32(ExprValue *pe); #ifdef TCC_TARGET_X86_64 ST_FUNC void gen_expr64(ExprValue *pe); #endif ST_FUNC void asm_opcode(TCCState *s1, int opcode); ST_FUNC int asm_parse_regvar(int t); ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg); ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier); ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg); ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str); #endif /* ------------ tccpe.c -------------- */ #ifdef TCC_TARGET_PE ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd); ST_FUNC int pe_output_file(TCCState * s1, const char *filename); ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value); #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2); #endif #ifdef TCC_TARGET_X86_64 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack); #endif PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp); /* symbol properties stored in Elf32_Sym->st_other */ # define ST_PE_EXPORT 0x10 # define ST_PE_IMPORT 0x20 # define ST_PE_STDCALL 0x40 #endif #define ST_ASM_SET 0x04 /* ------------ tccmacho.c ----------------- */ #ifdef TCC_TARGET_MACHO ST_FUNC int macho_output_file(TCCState * s1, const char *filename); ST_FUNC int macho_load_dll(TCCState *s1, int fd, const char *filename, int lev); #endif /* ------------ tccrun.c ----------------- */ #ifdef TCC_IS_NATIVE #ifdef CONFIG_TCC_STATIC #define RTLD_LAZY 0x001 #define RTLD_NOW 0x002 #define RTLD_GLOBAL 0x100 #define RTLD_DEFAULT NULL /* dummy function for profiling */ ST_FUNC void *dlopen(const char *filename, int flag); ST_FUNC void dlclose(void *p); ST_FUNC const char *dlerror(void); ST_FUNC void *dlsym(void *handle, const char *symbol); #endif ST_FUNC void tcc_run_free(TCCState *s1); #endif /* ------------ tcctools.c ----------------- */ #if 0 /* included in tcc.c */ ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv); #ifdef TCC_TARGET_PE ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv); #endif ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option); ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename); #endif /********************************************************/ #undef ST_DATA #if ONE_SOURCE #define ST_DATA static #else #define ST_DATA #endif /********************************************************/ #define text_section TCC_STATE_VAR(text_section) #define data_section TCC_STATE_VAR(data_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 stab_section TCC_STATE_VAR(stab_section) #define stabstr_section stab_section->link #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(void); /********************************************************/ #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 #else # define TCC_STATE_VAR(sym) s1->sym # define TCC_SET_STATE(fn) (tcc_enter_state(s1),fn) /* actually we could avoid the tcc_enter_state(s1) hack by using __VA_ARGS__ except that some compiler doesn't support it. */ #endif