/* * Copyright (C) 2012 * Dale Weiler, Wolfgang Bumiller * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished to do * so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef GMQCC_HDR #define GMQCC_HDR #include #include #include #include #include #define GMQCC_VERSION_MAJOR 0 #define GMQCC_VERSION_MINOR 1 #define GMQCC_VERSION_PATCH 0 #define GMQCC_VERSION_BUILD(J,N,P) (((J)<<16)|((N)<<8)|(P)) #define GMQCC_VERSION \ GMQCC_VERSION_BUILD(GMQCC_VERSION_MAJOR, GMQCC_VERSION_MINOR, GMQCC_VERSION_PATCH) /* * We cannoy rely on C99 at all, since compilers like MSVC * simply don't support it. We define our own boolean type * as a result (since we cannot include ). For * compilers that are in 1999 mode (C99 compliant) we can use * the language keyword _Bool which can allow for better code * on GCC and GCC-like compilers, opposed to `int`. */ #ifndef __cplusplus # ifdef false # undef false # endif /* !false */ # ifdef true # undef true # endif /* !true */ # define false (0) # define true (1) # ifdef __STDC_VERSION__ # if __STDC_VERSION__ < 199901L && __GNUC__ < 3 typedef int bool; # else typedef _Bool bool; # endif # else typedef int bool; # endif /* !__STDC_VERSION__ */ #endif /* !__cplusplus */ /* * Of some functions which are generated we want to make sure * that the result isn't ignored. To find such function calls, * we use this macro. */ #if defined(__GNUC__) || defined(__CLANG__) # define GMQCC_WARN __attribute__((warn_unused_result)) #else # define GMQCC_WARN #endif /* * This is a hack to silent clang regarding empty * body if statements. */ #define GMQCC_SUPPRESS_EMPTY_BODY do { } while (0) /* * Inline is not supported in < C90, however some compilers * like gcc and clang might have an inline attribute we can * use if present. */ #ifdef __STDC_VERSION__ # if __STDC_VERSION__ < 199901L # if defined(__GNUC__) || defined (__CLANG__) # if __GNUC__ < 2 # define GMQCC_INLINE # else # define GMQCC_INLINE __attribute__ ((always_inline)) # endif # else # define GMQCC_INLINE # endif # else # define GMQCC_INLINE inline # endif #else # define GMQCC_INLINE #endif /* !__STDC_VERSION__ */ /* * noreturn is present in GCC and clang * it's required for _ast_node_destory otherwise -Wmissing-noreturn * in clang complains about there being no return since abort() is * called. */ #if (defined(__GNUC__) && __GNUC__ >= 2) || defined(__CLANG__) # define GMQCC_NORETURN __attribute__ ((noreturn)) #else # define GMQCC_NORETURN #endif /* * stdint.h and inttypes.h -less subset * for systems that don't have it, which we must * assume is all systems. (int8_t not required) */ #if CHAR_MIN == -128 typedef unsigned char uint8_t; /* same as below */ #elif SCHAR_MIN == -128 typedef unsigned char uint8_t; /* same as above */ #endif #if SHRT_MAX == 0x7FFF typedef short int16_t; typedef unsigned short uint16_t; #elif INT_MAX == 0x7FFF typedef int int16_t; typedef unsigned int uint16_t; #endif #if INT_MAX == 0x7FFFFFFF typedef int int32_t; typedef unsigned int uint32_t; typedef long int64_t; typedef unsigned long uint64_t; #elif LONG_MAX == 0x7FFFFFFF typedef long int32_t; typedef unsigned long uint32_t; /* * It's nearly impossible to figure out a 64bit type at * this point without making assumptions about the build * enviroment. So if clang or gcc is detected use some * compiler builtins to create a 64 signed and unsigned * type. */ # if defined(__GNUC__) || defined (__CLANG__) typedef int int64_t __attribute__((__mode__(__DI__))); typedef unsigned int uint64_t __attribute__((__mode__(__DI__))); # else /* * Incoorectly size the types so static assertions below will * fail. There is no valid way to get a 64bit type at this point * without making assumptions of too many things. */ typedef struct { char _fail : 0; } int64_t; typedef struct { char _fail : 0; } uint64_t; # endif #endif #ifdef _LP64 /* long pointer == 64 */ typedef unsigned long uintptr_t; typedef long intptr_t; #else typedef unsigned int uintptr_t; typedef int intptr_t; #endif /* Ensure type sizes are correct: */ typedef char uint8_size_is_correct [sizeof(uint8_t) == 1?1:-1]; typedef char uint16_size_is_correct [sizeof(uint16_t) == 2?1:-1]; typedef char uint32_size_is_correct [sizeof(uint32_t) == 4?1:-1]; typedef char uint64_size_is_correct [sizeof(uint64_t) == 8?1:-1]; typedef char int16_size_if_correct [sizeof(int16_t) == 2?1:-1]; typedef char int32_size_is_correct [sizeof(int32_t) == 4?1:-1]; typedef char int64_size_is_correct [sizeof(int64_t) == 8?1:-1]; /* intptr_t / uintptr_t correct size check */ typedef char uintptr_size_is_correct[sizeof(intptr_t) == sizeof(int*)?1:-1]; typedef char intptr_size_is_correct [sizeof(uintptr_t)== sizeof(int*)?1:-1]; /*===================================================================*/ /*============================ lex.c ================================*/ /*===================================================================*/ typedef struct lex_file_t { FILE *file; /* file handler */ char *name; /* name of file */ char peek [5]; char lastok[8192]; int last; /* last token */ int current; /* current token */ int length; /* bytes left to parse */ int size; /* never changes (size of file) */ int line; /* what line are we on? */ } lex_file; /* * It's important that this table never exceed 32 keywords, the ascii * table starts at 33 (and we don't want conflicts) */ enum { TOKEN_DO , TOKEN_ELSE , TOKEN_IF , TOKEN_WHILE , TOKEN_BREAK , TOKEN_CONTINUE , TOKEN_RETURN , TOKEN_GOTO , TOKEN_FOR , /* extension */ TOKEN_TYPEDEF , /* extension */ /* ensure the token types are out of the */ /* bounds of anyothers that may conflict. */ TOKEN_FLOAT = 110, TOKEN_VECTOR , TOKEN_STRING , TOKEN_ENTITY , TOKEN_VOID }; /* * Lexer state constants, these are numbers for where exactly in * the lexing the lexer is at. Or where it decided to stop if a lexer * error occurs. These numbers must be > where the ascii-table ends * and > the last type token which is TOKEN_VOID */ enum { LEX_COMMENT = 1128, LEX_CHRLIT , LEX_STRLIT , LEX_IDENT }; int lex_token (lex_file *); void lex_reset (lex_file *); void lex_close (lex_file *); void lex_parse (lex_file *); lex_file *lex_include(lex_file *, const char *); void lex_init (const char *, lex_file **); /*===================================================================*/ /*========================== error.c ================================*/ /*===================================================================*/ #define ERROR_LEX (SHRT_MAX+0) #define ERROR_PARSE (SHRT_MAX+1) #define ERROR_INTERNAL (SHRT_MAX+2) #define ERROR_COMPILER (SHRT_MAX+3) #define ERROR_PREPRO (SHRT_MAX+4) int error(lex_file *, int, const char *, ...); /*===================================================================*/ /*========================== parse.c ================================*/ /*===================================================================*/ int parse_gen(lex_file *); /*===================================================================*/ /*========================== typedef.c ==============================*/ /*===================================================================*/ typedef struct typedef_node_t { char *name; } typedef_node; void typedef_init(); void typedef_clear(); typedef_node *typedef_find(const char *); int typedef_add (lex_file *file, const char *, const char *); /*===================================================================*/ /*=========================== util.c ================================*/ /*===================================================================*/ void *util_memory_a (unsigned int, unsigned int, const char *); void util_memory_d (void *, unsigned int, const char *); void util_meminfo (); bool util_strupper (const char *); bool util_strdigit (const char *); bool util_strncmpexact (const char *, const char *, size_t); char *util_strdup (const char *); char *util_strrq (const char *); char *util_strrnl (const char *); char *util_strsws (const char *); char *util_strchp (const char *, const char *); void util_debug (const char *, const char *, ...); int util_getline (char **, size_t *, FILE *); void util_endianswap (void *, int, int); uint32_t util_crc32(const char *, int, register const short); #ifdef NOTRACK # define mem_a(x) malloc(x) # define mem_d(x) free (x) #else # define mem_a(x) util_memory_a((x), __LINE__, __FILE__) # define mem_d(x) util_memory_d((x), __LINE__, __FILE__) #endif /* * TODO: make these safer to use. Currently this only works on * x86 and x86_64, some systems will likely not like this. Such * as BE systems. */ #define FLT2INT(Y) *((int32_t*)&(Y)) #define INT2FLT(Y) *((float *)&(Y)) /* Builds vector type (usefull for inside structures) */ #define VECTOR_SNAP(X,Y) X ## Y #define VECTOR_FILL(X,Y) VECTOR_SNAP(X,Y) #define VECTOR_TYPE(T,N) \ T* N##_data = NULL; \ long N##_elements = 0; \ long N##_allocated = 0 /* Builds vector add */ #define VECTOR_CORE(T,N) \ int N##_add(T element) { \ void *temp = NULL; \ if (N##_elements == N##_allocated) { \ if (N##_allocated == 0) { \ N##_allocated = 12; \ } else { \ N##_allocated *= 2; \ } \ if (!(temp = mem_a(N##_allocated * sizeof(T)))) { \ mem_d(temp); \ return -1; \ } \ memcpy(temp, N##_data, (N##_elements * sizeof(T))); \ mem_d(N##_data); \ N##_data = (T*)temp; \ } \ N##_data[N##_elements] = element; \ return N##_elements++; \ } \ int N##_put(T* elements, size_t len) { \ len --; \ elements--; \ while (N##_add(*++elements) != -1 && len--); \ return N##_elements; \ } \ typedef char VECTOR_FILL(extra_semicolon_,__COUNTER__) #define VECTOR_PROT(T,N) \ extern T* N##_data ; \ extern long N##_elements ; \ extern long N##_allocated; \ int N##_add(T); \ int N##_put(T *, size_t) #define VECTOR_MAKE(T,N) \ VECTOR_TYPE(T,N); \ VECTOR_CORE(T,N) /*===================================================================*/ /*=========================== code.c ================================*/ /*===================================================================*/ /* Note: if you change the order, fix type_sizeof in ir.c */ enum { TYPE_VOID , TYPE_STRING , TYPE_FLOAT , TYPE_VECTOR , TYPE_ENTITY , TYPE_FIELD , TYPE_FUNCTION , TYPE_POINTER , /* TYPE_INTEGER , */ TYPE_VARIANT , TYPE_COUNT }; extern size_t type_sizeof[TYPE_COUNT]; extern uint16_t type_store_instr[TYPE_COUNT]; /* could use type_store_instr + INSTR_STOREP_F - INSTR_STORE_F * but this breaks when TYPE_INTEGER is added, since with the enhanced * instruction set, the old ones are left untouched, thus the _I instructions * are at a seperate place. */ extern uint16_t type_storep_instr[TYPE_COUNT]; typedef struct { uint32_t offset; /* Offset in file of where data begins */ uint32_t length; /* Length of section (how many of) */ } prog_section; typedef struct { uint32_t version; /* Program version (6) */ uint16_t crc16; /* What is this? */ uint16_t skip; /* see propsal.txt */ prog_section statements; /* prog_section_statement */ prog_section defs; /* prog_section_def */ prog_section fields; /* prog_section_field */ prog_section functions; /* prog_section_function */ prog_section strings; /* What is this? */ prog_section globals; /* What is this? */ uint32_t entfield; /* Number of entity fields */ } prog_header; /* * Each paramater incerements by 3 since vector types hold * 3 components (x,y,z). */ #define OFS_NULL 0 #define OFS_RETURN 1 #define OFS_PARM0 (OFS_RETURN+3) #define OFS_PARM1 (OFS_PARM0 +3) #define OFS_PARM2 (OFS_PARM1 +3) #define OFS_PARM3 (OFS_PARM2 +3) #define OFS_PARM4 (OFS_PARM3 +3) #define OFS_PARM5 (OFS_PARM4 +3) #define OFS_PARM6 (OFS_PARM5 +3) #define OFS_PARM7 (OFS_PARM6 +3) typedef struct { uint16_t opcode; /* operand 1 */ union { int16_t s1; /* signed */ uint16_t u1; /* unsigned */ } o1; /* operand 2 */ union { int16_t s1; /* signed */ uint16_t u1; /* unsigned */ } o2; /* operand 3 */ union { int16_t s1; /* signed */ uint16_t u1; /* unsigned */ } o3; /* * This is the same as the structure in darkplaces * { * unsigned short op; * short a,b,c; * } * But this one is more sane to work with, and the * type sizes are guranteed. */ } prog_section_statement; typedef struct { /* The types: * 0 = ev_void * 1 = ev_string * 2 = ev_float * 3 = ev_vector * 4 = ev_entity * 5 = ev_field * 6 = ev_function * 7 = ev_pointer -- engine only * 8 = ev_bad -- engine only */ uint16_t type; uint16_t offset; uint32_t name; } prog_section_both; typedef prog_section_both prog_section_def; typedef prog_section_both prog_section_field; typedef struct { int32_t entry; /* in statement table for instructions */ uint32_t firstlocal; /* First local in local table */ uint32_t locals; /* Total ints of params + locals */ uint32_t profile; /* Always zero (engine uses this) */ uint32_t name; /* name of function in string table */ uint32_t file; /* file of the source file */ uint32_t nargs; /* number of arguments */ uint8_t argsize[8]; /* size of arguments (keep 8 always?) */ } prog_section_function; /* * Instructions * These are the external instructions supported by the interperter * this is what things compile to (from the C code). */ enum { INSTR_DONE, INSTR_MUL_F, INSTR_MUL_V, INSTR_MUL_FV, INSTR_MUL_VF, INSTR_DIV_F, INSTR_ADD_F, INSTR_ADD_V, INSTR_SUB_F, INSTR_SUB_V, INSTR_EQ_F, INSTR_EQ_V, INSTR_EQ_S, INSTR_EQ_E, INSTR_EQ_FNC, INSTR_NE_F, INSTR_NE_V, INSTR_NE_S, INSTR_NE_E, INSTR_NE_FNC, INSTR_LE, INSTR_GE, INSTR_LT, INSTR_GT, INSTR_LOAD_F, INSTR_LOAD_V, INSTR_LOAD_S, INSTR_LOAD_ENT, INSTR_LOAD_FLD, INSTR_LOAD_FNC, INSTR_ADDRESS, INSTR_STORE_F, INSTR_STORE_V, INSTR_STORE_S, INSTR_STORE_ENT, INSTR_STORE_FLD, INSTR_STORE_FNC, INSTR_STOREP_F, INSTR_STOREP_V, INSTR_STOREP_S, INSTR_STOREP_ENT, INSTR_STOREP_FLD, INSTR_STOREP_FNC, INSTR_RETURN, INSTR_NOT_F, INSTR_NOT_V, INSTR_NOT_S, INSTR_NOT_ENT, INSTR_NOT_FNC, INSTR_IF, INSTR_IFNOT, INSTR_CALL0, INSTR_CALL1, INSTR_CALL2, INSTR_CALL3, INSTR_CALL4, INSTR_CALL5, INSTR_CALL6, INSTR_CALL7, INSTR_CALL8, INSTR_STATE, INSTR_GOTO, INSTR_AND, INSTR_OR, INSTR_BITAND, INSTR_BITOR, /* * Virtual instructions used by the assembler * keep at the end but before virtual instructions * for the IR below. */ AINSTR_END, /* * Virtual instructions used by the IR * Keep at the end! */ VINSTR_PHI, VINSTR_JUMP, VINSTR_COND }; /* * The symbols below are created by the following * expanded macros: * * VECTOR_MAKE(prog_section_statement, code_statements); * VECTOR_MAKE(prog_section_def, code_defs ); * VECTOR_MAKE(prog_section_field, code_fields ); * VECTOR_MAKE(prog_section_function, code_functions ); * VECTOR_MAKE(int, code_globals ); * VECTOR_MAKE(char, code_chars ); */ VECTOR_PROT(prog_section_statement, code_statements); VECTOR_PROT(prog_section_statement, code_statements); VECTOR_PROT(prog_section_def, code_defs ); VECTOR_PROT(prog_section_field, code_fields ); VECTOR_PROT(prog_section_function, code_functions ); VECTOR_PROT(int, code_globals ); VECTOR_PROT(char, code_chars ); /* * code_write -- writes out the compiled file * code_init -- prepares the code file */ bool code_write (const char *filename); void code_init (); uint32_t code_genstring (const char *string); uint32_t code_cachedstring(const char *string); /*===================================================================*/ /*========================= assembler.c =============================*/ /*===================================================================*/ static const struct { const char *m; /* menomic */ const size_t o; /* operands */ const size_t l; /* menomic len */ } asm_instr[] = { { "DONE" , 1, 4 }, { "MUL_F" , 3, 5 }, { "MUL_V" , 3, 5 }, { "MUL_FV" , 3, 6 }, { "MUL_VF" , 3, 6 }, { "DIV" , 0, 3 }, { "ADD_F" , 3, 5 }, { "ADD_V" , 3, 5 }, { "SUB_F" , 3, 5 }, { "DUB_V" , 3, 5 }, { "EQ_F" , 0, 4 }, { "EQ_V" , 0, 4 }, { "EQ_S" , 0, 4 }, { "EQ_E" , 0, 4 }, { "EQ_FNC" , 0, 6 }, { "NE_F" , 0, 4 }, { "NE_V" , 0, 4 }, { "NE_S" , 0, 4 }, { "NE_E" , 0, 4 }, { "NE_FNC" , 0, 6 }, { "LE" , 0, 2 }, { "GE" , 0, 2 }, { "LT" , 0, 2 }, { "GT" , 0, 2 }, { "FIELD_F" , 0, 7 }, { "FIELD_V" , 0, 7 }, { "FIELD_S" , 0, 7 }, { "FIELD_ENT" , 0, 9 }, { "FIELD_FLD" , 0, 9 }, { "FIELD_FNC" , 0, 9 }, { "ADDRESS" , 0, 7 }, { "STORE_F" , 0, 7 }, { "STORE_V" , 0, 7 }, { "STORE_S" , 0, 7 }, { "STORE_ENT" , 0, 9 }, { "STORE_FLD" , 0, 9 }, { "STORE_FNC" , 0, 9 }, { "STOREP_F" , 0, 8 }, { "STOREP_V" , 0, 8 }, { "STOREP_S" , 0, 8 }, { "STOREP_ENT", 0, 10}, { "STOREP_FLD", 0, 10}, { "STOREP_FNC", 0, 10}, { "RETURN" , 0, 6 }, { "NOT_F" , 0, 5 }, { "NOT_V" , 0, 5 }, { "NOT_S" , 0, 5 }, { "NOT_ENT" , 0, 7 }, { "NOT_FNC" , 0, 7 }, { "IF" , 0, 2 }, { "IFNOT" , 0, 5 }, { "CALL0" , 1, 5 }, { "CALL1" , 2, 5 }, { "CALL2" , 3, 5 }, { "CALL3" , 4, 5 }, { "CALL4" , 5, 5 }, { "CALL5" , 6, 5 }, { "CALL6" , 7, 5 }, { "CALL7" , 8, 5 }, { "CALL8" , 9, 5 }, { "STATE" , 0, 5 }, { "GOTO" , 0, 4 }, { "AND" , 0, 3 }, { "OR" , 0, 2 }, { "BITAND" , 0, 6 }, { "BITOR" , 0, 5 }, { "END" , 0, 3 } /* virtual assembler instruction */ }; void asm_init (const char *, FILE **); void asm_close(FILE *); void asm_parse(FILE *); /*===================================================================*/ /*============================= main.c ==============================*/ /*===================================================================*/ enum { COMPILER_QCC, /* circa QuakeC */ COMPILER_FTEQCC, /* fteqcc QuakeC */ COMPILER_QCCX, /* qccx QuakeC */ COMPILER_GMQCC /* this QuakeC */ }; extern bool opts_debug; extern bool opts_memchk; extern bool opts_darkplaces_stringtablebug; extern bool opts_omit_nullcode; extern int opts_compiler; /*===================================================================*/ /*============================= ast.c ===============================*/ /*===================================================================*/ #define MEM_VECTOR_PROTO(Towner, Tmem, mem) \ bool GMQCC_WARN Towner##_##mem##_add(Towner*, Tmem); \ bool GMQCC_WARN Towner##_##mem##_remove(Towner*, size_t) #define MEM_VECTOR_PROTO_ALL(Towner, Tmem, mem) \ MEM_VECTOR_PROTO(Towner, Tmem, mem); \ bool GMQCC_WARN Towner##_##mem##_find(Towner*, Tmem, size_t*); \ void Towner##_##mem##_clear(Towner*) #define MEM_VECTOR_MAKE(Twhat, name) \ Twhat *name; \ size_t name##_count; \ size_t name##_alloc #define MEM_VEC_FUN_ADD(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_add(Tself *self, Twhat f) \ { \ Twhat *reall; \ if (self->mem##_count == self->mem##_alloc) { \ if (!self->mem##_alloc) { \ self->mem##_alloc = 16; \ } else { \ self->mem##_alloc *= 2; \ } \ reall = (Twhat*)mem_a(sizeof(Twhat) * self->mem##_alloc); \ if (!reall) { \ return false; \ } \ memcpy(reall, self->mem, sizeof(Twhat) * self->mem##_count); \ mem_d(self->mem); \ self->mem = reall; \ } \ self->mem[self->mem##_count++] = f; \ return true; \ } #define MEM_VEC_FUN_REMOVE(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_remove(Tself *self, size_t idx) \ { \ size_t i; \ Twhat *reall; \ if (idx >= self->mem##_count) { \ return true; /* huh... */ \ } \ for (i = idx; i < self->mem##_count-1; ++i) { \ self->mem[i] = self->mem[i+1]; \ } \ self->mem##_count--; \ if (self->mem##_count < self->mem##_count/2) { \ self->mem##_alloc /= 2; \ reall = (Twhat*)mem_a(sizeof(Twhat) * self->mem##_count); \ if (!reall) { \ return false; \ } \ memcpy(reall, self->mem, sizeof(Twhat) * self->mem##_count); \ mem_d(self->mem); \ self->mem = reall; \ } \ return true; \ } #define MEM_VEC_FUN_FIND(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_find(Tself *self, Twhat obj, size_t *idx) \ { \ size_t i; \ for (i = 0; i < self->mem##_count; ++i) { \ if (self->mem[i] == obj) { \ if (idx) { \ *idx = i; \ } \ return true; \ } \ } \ return false; \ } #define MEM_VEC_FUN_APPEND(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_append(Tself *s, Twhat *p, size_t c) \ { \ Twhat *reall; \ if (s->mem##_count+c >= s->mem##_alloc) { \ if (!s->mem##_alloc) { \ s->mem##_alloc = c < 16 ? 16 : c; \ } else { \ s->mem##_alloc *= 2; \ if (s->mem##_count+c >= s->mem##_alloc) { \ s->mem##_alloc = s->mem##_count+c; \ } \ } \ reall = (Twhat*)mem_a(sizeof(Twhat) * s->mem##_alloc); \ if (!reall) { \ return false; \ } \ memcpy(reall, s->mem, sizeof(Twhat) * s->mem##_count); \ mem_d(s->mem); \ s->mem = reall; \ } \ memcpy(&s->mem[s->mem##_count], p, c*sizeof(*p)); \ s->mem##_count += c; \ return true; \ } #define MEM_VEC_FUN_RESIZE(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_resize(Tself *s, size_t c) \ { \ Twhat *reall; \ if (c > s->mem##_alloc) { \ reall = (Twhat*)mem_a(sizeof(Twhat) * c); \ if (!reall) { return false; } \ memcpy(reall, s->mem, sizeof(Twhat) * s->mem##_count); \ s->mem##_alloc = c; \ mem_d(s->mem); \ s->mem = reall; \ return true; \ } \ s->mem##_count = c; \ if (c < (s->mem##_alloc / 2)) { \ reall = (Twhat*)mem_a(sizeof(Twhat) * c); \ if (!reall) { return false; } \ memcpy(reall, s->mem, sizeof(Twhat) * c); \ mem_d(s->mem); \ s->mem = reall; \ } \ return true; \ } #define MEM_VEC_FUN_CLEAR(Tself, mem) \ void Tself##_##mem##_clear(Tself *self) \ { \ if (!self->mem) \ return; \ mem_d((void*) self->mem); \ self->mem = NULL; \ self->mem##_count = 0; \ self->mem##_alloc = 0; \ } #define MEM_VECTOR_CLEAR(owner, mem) \ if ((owner)->mem) \ mem_d((void*)((owner)->mem)); \ (owner)->mem = NULL; \ (owner)->mem##_count = 0; \ (owner)->mem##_alloc = 0 #define MEM_VECTOR_INIT(owner, mem) \ { \ (owner)->mem = NULL; \ (owner)->mem##_count = 0; \ (owner)->mem##_alloc = 0; \ } #define MEM_VEC_FUNCTIONS(Tself, Twhat, mem) \ MEM_VEC_FUN_REMOVE(Tself, Twhat, mem) \ MEM_VEC_FUN_ADD(Tself, Twhat, mem) #define MEM_VEC_FUNCTIONS_ALL(Tself, Twhat, mem) \ MEM_VEC_FUNCTIONS(Tself, Twhat, mem) \ MEM_VEC_FUN_CLEAR(Tself, mem) \ MEM_VEC_FUN_FIND(Tself, Twhat, mem) enum store_types { store_global, store_local, /* local, assignable for now, should get promoted later */ store_param, /* parameters, they are locals with a fixed position */ store_value, /* unassignable */ store_return /* unassignable, at OFS_RETURN */ }; typedef struct { float x, y, z; } vector; /* * A shallow copy of a lex_file to remember where which ast node * came from. */ typedef struct { const char *file; size_t line; } lex_ctx; /*===================================================================*/ /*============================= exec.c ==============================*/ /*===================================================================*/ /* darkplaces has (or will have) a 64 bit prog loader * where the 32 bit qc program is autoconverted on load. * Since we may want to support that as well, let's redefine * float and int here. */ typedef float qcfloat; typedef int32_t qcint; typedef union { qcint _int; qcint string; qcint function; qcint edict; qcfloat _float; qcfloat vector[3]; qcint ivector[3]; } qcany; typedef char qcfloat_size_is_correct [sizeof(qcfloat) == 4 ?1:-1]; typedef char qcint_size_is_correct [sizeof(qcint) == 4 ?1:-1]; enum { VMERR_OK, VMERR_TEMPSTRING_ALLOC, VMERR_END }; #define VM_JUMPS_DEFAULT 1000000 /* execute-flags */ #define VMXF_DEFAULT 0x0000 /* default flags - nothing */ #define VMXF_TRACE 0x0001 /* trace: print statements before executing */ #define VMXF_PROFILE 0x0002 /* profile: increment the profile counters */ struct qc_program_s; typedef int (*prog_builtin)(struct qc_program_s *prog); typedef struct { qcint stmt; size_t localsp; prog_section_function *function; } qc_exec_stack; typedef struct qc_program_s { char *filename; MEM_VECTOR_MAKE(prog_section_statement, code); MEM_VECTOR_MAKE(prog_section_def, defs); MEM_VECTOR_MAKE(prog_section_def, fields); MEM_VECTOR_MAKE(prog_section_function, functions); MEM_VECTOR_MAKE(char, strings); MEM_VECTOR_MAKE(qcint, globals); MEM_VECTOR_MAKE(qcint, entitydata); size_t tempstring_start; size_t tempstring_at; qcint vmerror; MEM_VECTOR_MAKE(size_t, profile); MEM_VECTOR_MAKE(prog_builtin, builtins); /* size_t ip; */ qcint entities; size_t entityfields; bool allowworldwrites; MEM_VECTOR_MAKE(qcint, localstack); MEM_VECTOR_MAKE(qc_exec_stack, stack); size_t statement; int argc; /* current arg count for debugging */ } qc_program; qc_program* prog_load(const char *filename); void prog_delete(qc_program *prog); bool prog_exec(qc_program *prog, prog_section_function *func, size_t flags, long maxjumps); char* prog_getstring (qc_program *prog, qcint str); prog_section_def* prog_entfield (qc_program *prog, qcint off); prog_section_def* prog_getdef (qc_program *prog, qcint off); qcany* prog_getedict (qc_program *prog, qcint e); qcint prog_tempstring(qc_program *prog, const char *_str); /*===================================================================*/ /*======================= main.c commandline ========================*/ /*===================================================================*/ #if 0 /* Helpers to allow for a whole lot of flags. Otherwise we'd limit * to 32 or 64 -f options... */ typedef struct { size_t idx; /* index into an array of 32 bit words */ uint8_t bit; /* index _into_ the 32 bit word, thus just uint8 */ } longbit; #define LONGBIT(bit) { ((bit)/32), ((bit)%32) } #else typedef uint32_t longbit; #define LONGBIT(bit) (bit) #endif /* Used to store the list of flags with names */ typedef struct { const char *name; longbit bit; } opt_flag_def; /*===================================================================*/ /* list of -f flags, like -fdarkplaces-string-table-bug */ enum { # define GMQCC_DEFINE_FLAG(X) X, # include "flags.def" # undef GMQCC_DEFINE_FLAG COUNT_FLAGS }; static const opt_flag_def opt_flag_list[] = { # define GMQCC_DEFINE_FLAG(X) { #X, LONGBIT(X) }, # include "flags.def" # undef GMQCC_DEFINE_FLAG { NULL, LONGBIT(0) } }; enum { # define GMQCC_DEFINE_FLAG(X) X, # include "warns.def" # undef GMQCC_DEFINE_FLAG COUNT_WARNINGS }; static const opt_flag_def opt_warn_list[] = { # define GMQCC_DEFINE_FLAG(X) { #X, LONGBIT(X) }, # include "warns.def" # undef GMQCC_DEFINE_FLAG { NULL, LONGBIT(0) } }; /* other options: */ extern uint32_t opt_O; /* -Ox */ extern const char *opt_output; /* -o file */ extern int opt_standard; enum { STD_DEF, STD_QCC, STD_FTE }; /*===================================================================*/ #define OPT_FLAG(i) (!! (opt_flags[(i)/32] & (1<< ((i)%32)))) extern uint32_t opt_flags[1 + (COUNT_FLAGS / 32)]; #define OPT_WARN(i) (!! (opt_warn[(i)/32] & (1<< ((i)%32)))) extern uint32_t opt_warn[1 + (COUNT_WARNINGS / 32)]; #endif