X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=gmqcc.h;h=5324a72e6925849b9817f8de8262a18f27b466ef;hb=ac26c2f2f26ae21fe77bdd7fef6f53eb2413d4ed;hp=d28452659c2398f762f92c2773067f2cb68b435f;hpb=b09d75518cdf37e80db9dd77afb66b38c90cd8fc;p=xonotic%2Fgmqcc.git diff --git a/gmqcc.h b/gmqcc.h index d284526..5324a72 100644 --- a/gmqcc.h +++ b/gmqcc.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 + * Copyright (C) 2012 * Dale Weiler, Wolfgang Bumiller * * Permission is hereby granted, free of charge, to any person obtaining a copy of @@ -52,11 +52,16 @@ # endif /* !true */ # define false (0) # define true (1) -# define bool _Bool -# if __STDC_VERSION__ < 199901L && __GNUC__ < 3 - typedef int _Bool -# endif -# endif /* !__cplusplus */ +# 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 @@ -68,6 +73,46 @@ #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 @@ -86,12 +131,34 @@ typedef int int16_t; typedef unsigned int uint16_t; #endif -#if INT_MAX == 0x7FFFFFFF +#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; @@ -99,26 +166,28 @@ #else typedef unsigned int uintptr_t; typedef int intptr_t; -#endif +#endif /* Ensure type sizes are correct: */ typedef char uint8_size_is_correct [sizeof(uint8_t) == 1?1:-1]; -typedef char uint16_size_if_correct [sizeof(uint16_t) == 2?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 ================================ -//=================================================================== +/*===================================================================*/ +/*============================ lex.c ================================*/ +/*===================================================================*/ typedef struct lex_file_t { FILE *file; /* file handler */ char *name; /* name of file */ - char peek [5]; + char peek [5]; char lastok[8192]; - + int last; /* last token */ int current; /* current token */ int length; /* bytes left to parse */ @@ -139,11 +208,11 @@ enum { TOKEN_CONTINUE , TOKEN_RETURN , TOKEN_GOTO , - TOKEN_FOR , // extension - TOKEN_TYPEDEF , // extension + TOKEN_FOR , /* extension */ + TOKEN_TYPEDEF , /* extension */ - // ensure the token types are out of the - // bounds of anyothers that may conflict. + /* ensure the token types are out of the */ + /* bounds of anyothers that may conflict. */ TOKEN_FLOAT = 110, TOKEN_VECTOR , TOKEN_STRING , @@ -158,7 +227,7 @@ enum { * and > the last type token which is TOKEN_VOID */ enum { - LEX_COMMENT = 1128, + LEX_COMMENT = 1128, LEX_CHRLIT , LEX_STRLIT , LEX_IDENT @@ -171,9 +240,9 @@ void lex_parse (lex_file *); lex_file *lex_include(lex_file *, const char *); void lex_init (const char *, lex_file **); -//=================================================================== -//========================== error.c ================================ -//=================================================================== +/*===================================================================*/ +/*========================== error.c ================================*/ +/*===================================================================*/ #define ERROR_LEX (SHRT_MAX+0) #define ERROR_PARSE (SHRT_MAX+1) #define ERROR_INTERNAL (SHRT_MAX+2) @@ -181,14 +250,14 @@ void lex_init (const char *, lex_file **); #define ERROR_PREPRO (SHRT_MAX+4) int error(lex_file *, int, const char *, ...); -//=================================================================== -//========================== parse.c ================================ -//=================================================================== +/*===================================================================*/ +/*========================== parse.c ================================*/ +/*===================================================================*/ int parse_gen(lex_file *); -//=================================================================== -//========================== typedef.c ============================== -//=================================================================== +/*===================================================================*/ +/*========================== typedef.c ==============================*/ +/*===================================================================*/ typedef struct typedef_node_t { char *name; } typedef_node; @@ -199,15 +268,16 @@ typedef_node *typedef_find(const char *); int typedef_add (lex_file *file, const char *, const char *); -//=================================================================== -//=========================== util.c ================================ -//=================================================================== +/*===================================================================*/ +/*=========================== 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 *); @@ -217,7 +287,7 @@ 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); +uint32_t util_crc32(const char *, int, register const short); #ifdef NOTRACK # define mem_a(x) malloc(x) @@ -227,6 +297,14 @@ uint32_t util_crc32(const char *, int, register const short); # 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) @@ -237,14 +315,14 @@ uint32_t util_crc32(const char *, int, register const short); /* 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; \ } \ - void *temp = mem_a(N##_allocated * sizeof(T)); \ - if (!temp) { \ + if (!(temp = mem_a(N##_allocated * sizeof(T)))) { \ mem_d(temp); \ return -1; \ } \ @@ -262,16 +340,21 @@ uint32_t util_crc32(const char *, int, register const short); return N##_elements; \ } \ typedef char VECTOR_FILL(extra_semicolon_,__COUNTER__) -/* Builds a full vector inspot */ +#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) -/* Builds a vector add function pointer for inside structures */ -#define VECTOR_IMPL(T,N) int (*N##_add)(T) -//=================================================================== -//=========================== code.c ================================ -//=================================================================== +/*===================================================================*/ +/*=========================== code.c ================================*/ +/*===================================================================*/ + +/* Note: if you change the order, fix type_sizeof in ir.c */ enum { TYPE_VOID , TYPE_STRING , @@ -283,8 +366,38 @@ enum { 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). @@ -302,7 +415,7 @@ enum { typedef struct { uint16_t opcode; - + /* operand 1 */ union { int16_t s1; /* signed */ @@ -310,15 +423,15 @@ typedef struct { } o1; /* operand 2 */ union { - int16_t s2; /* signed */ - uint16_t u2; /* unsigned */ + int16_t s1; /* signed */ + uint16_t u1; /* unsigned */ } o2; /* operand 3 */ union { - int16_t s3; /* signed */ - uint16_t u3; /* unsigned */ + int16_t s1; /* signed */ + uint16_t u1; /* unsigned */ } o3; - + /* * This is the same as the structure in darkplaces * { @@ -360,8 +473,8 @@ typedef struct { uint8_t argsize[8]; /* size of arguments (keep 8 always?) */ } prog_section_function; -/* - * Instructions +/* + * Instructions * These are the external instructions supported by the interperter * this is what things compile to (from the C code). */ @@ -433,18 +546,26 @@ enum { INSTR_BITAND, INSTR_BITOR, - /* Virtual instructions used by the IR + /* + * 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, + 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 ); @@ -452,114 +573,106 @@ enum { * VECTOR_MAKE(int, code_globals ); * VECTOR_MAKE(char, code_chars ); */ -int code_statements_add(prog_section_statement); -int code_defs_add (prog_section_def); -int code_fields_add (prog_section_field); -int code_functions_add (prog_section_function); -int code_globals_add (int); -int code_chars_add (char); -int code_statements_put(prog_section_statement*, size_t); -int code_defs_put (prog_section_def*, size_t); -int code_fields_put (prog_section_field*, size_t); -int code_functions_put (prog_section_function*, size_t); -int code_globals_put (int*, size_t); -int code_chars_put (char*, size_t); -extern long code_statements_elements; -extern long code_chars_elements; -extern long code_globals_elements; -extern long code_functions_elements; -extern long code_fields_elements; -extern long code_defs_elements; +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 */ -void code_write (); -void code_init (); +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 ============================= -//=================================================================== +/*===================================================================*/ +/*========================= assembler.c =============================*/ +/*===================================================================*/ static const struct { const char *m; /* menomic */ - const size_t o; /* operands */ + const size_t o; /* operands */ const size_t l; /* menomic len */ -} const asm_instr[] = { - [INSTR_DONE] = { "DONE" , 1, 4 }, - [INSTR_MUL_F] = { "MUL_F" , 3, 5 }, - [INSTR_MUL_V] = { "MUL_V" , 3, 5 }, - [INSTR_MUL_FV] = { "MUL_FV" , 3, 6 }, - [INSTR_MUL_VF] = { "MUL_VF" , 3, 6 }, - [INSTR_DIV_F] = { "DIV" , 0, 3 }, - [INSTR_ADD_F] = { "ADD_F" , 3, 5 }, - [INSTR_ADD_V] = { "ADD_V" , 3, 5 }, - [INSTR_SUB_F] = { "SUB_F" , 3, 5 }, - [INSTR_SUB_V] = { "DUB_V" , 3, 5 }, - [INSTR_EQ_F] = { "EQ_F" , 0, 4 }, - [INSTR_EQ_V] = { "EQ_V" , 0, 4 }, - [INSTR_EQ_S] = { "EQ_S" , 0, 4 }, - [INSTR_EQ_E] = { "EQ_E" , 0, 4 }, - [INSTR_EQ_FNC] = { "ES_FNC" , 0, 6 }, - [INSTR_NE_F] = { "NE_F" , 0, 4 }, - [INSTR_NE_V] = { "NE_V" , 0, 4 }, - [INSTR_NE_S] = { "NE_S" , 0, 4 }, - [INSTR_NE_E] = { "NE_E" , 0, 4 }, - [INSTR_NE_FNC] = { "NE_FNC" , 0, 6 }, - [INSTR_LE] = { "LE" , 0, 2 }, - [INSTR_GE] = { "GE" , 0, 2 }, - [INSTR_LT] = { "LT" , 0, 2 }, - [INSTR_GT] = { "GT" , 0, 2 }, - [INSTR_LOAD_F] = { "FIELD_F" , 0, 7 }, - [INSTR_LOAD_V] = { "FIELD_V" , 0, 7 }, - [INSTR_LOAD_S] = { "FIELD_S" , 0, 7 }, - [INSTR_LOAD_ENT] = { "FIELD_ENT" , 0, 9 }, - [INSTR_LOAD_FLD] = { "FIELD_FLD" , 0, 9 }, - [INSTR_LOAD_FNC] = { "FIELD_FNC" , 0, 9 }, - [INSTR_ADDRESS] = { "ADDRESS" , 0, 7 }, - [INSTR_STORE_F] = { "STORE_F" , 0, 7 }, - [INSTR_STORE_V] = { "STORE_V" , 0, 7 }, - [INSTR_STORE_S] = { "STORE_S" , 0, 7 }, - [INSTR_STORE_ENT] = { "STORE_ENT" , 0, 9 }, - [INSTR_STORE_FLD] = { "STORE_FLD" , 0, 9 }, - [INSTR_STORE_FNC] = { "STORE_FNC" , 0, 9 }, - [INSTR_STOREP_F] = { "STOREP_F" , 0, 8 }, - [INSTR_STOREP_V] = { "STOREP_V" , 0, 8 }, - [INSTR_STOREP_S] = { "STOREP_S" , 0, 8 }, - [INSTR_STOREP_ENT] = { "STOREP_ENT", 0, 10}, - [INSTR_STOREP_FLD] = { "STOREP_FLD", 0, 10}, - [INSTR_STOREP_FNC] = { "STOREP_FNC", 0, 10}, - [INSTR_RETURN] = { "RETURN" , 0, 6 }, - [INSTR_NOT_F] = { "NOT_F" , 0, 5 }, - [INSTR_NOT_V] = { "NOT_V" , 0, 5 }, - [INSTR_NOT_S] = { "NOT_S" , 0, 5 }, - [INSTR_NOT_ENT] = { "NOT_ENT" , 0, 7 }, - [INSTR_NOT_FNC] = { "NOT_FNC" , 0, 7 }, - [INSTR_IF] = { "IF" , 0, 2 }, - [INSTR_IFNOT] = { "IFNOT" , 0, 5 }, - [INSTR_CALL0] = { "CALL0" , 0, 5 }, - [INSTR_CALL1] = { "CALL1" , 0, 5 }, - [INSTR_CALL2] = { "CALL2" , 0, 5 }, - [INSTR_CALL3] = { "CALL3" , 0, 5 }, - [INSTR_CALL4] = { "CALL4" , 0, 5 }, - [INSTR_CALL5] = { "CALL5" , 0, 5 }, - [INSTR_CALL6] = { "CALL6" , 0, 5 }, - [INSTR_CALL7] = { "CALL7" , 0, 5 }, - [INSTR_CALL8] = { "CALL8" , 0, 5 }, - [INSTR_STATE] = { "STATE" , 0, 5 }, - [INSTR_GOTO] = { "GOTO" , 0, 4 }, - [INSTR_AND] = { "AND" , 0, 3 }, - [INSTR_OR] = { "OR" , 0, 2 }, - [INSTR_BITAND] = { "BITAND" , 0, 6 }, - [INSTR_BITOR] = { "BITOR" , 0, 5 } +} 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 ================================= -//====================================================================== +/*===================================================================*/ +/*============================= main.c ==============================*/ +/*===================================================================*/ enum { COMPILER_QCC, /* circa QuakeC */ COMPILER_FTEQCC, /* fteqcc QuakeC */ @@ -571,9 +684,9 @@ extern bool opts_memchk; extern bool opts_darkplaces_stringtablebug; extern bool opts_omit_nullcode; extern int opts_compiler; -//====================================================================== -//============================= ast.c ================================== -//====================================================================== +/*===================================================================*/ +/*============================= 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) @@ -588,7 +701,7 @@ extern int opts_compiler; size_t name##_count; \ size_t name##_alloc -#define _MEM_VEC_FUN_ADD(Tself, Twhat, mem) \ +#define MEM_VEC_FUN_ADD(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_add(Tself *self, Twhat f) \ { \ Twhat *reall; \ @@ -610,7 +723,7 @@ bool GMQCC_WARN Tself##_##mem##_add(Tself *self, Twhat f) \ return true; \ } -#define _MEM_VEC_FUN_REMOVE(Tself, Twhat, mem) \ +#define MEM_VEC_FUN_REMOVE(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_remove(Tself *self, size_t idx) \ { \ size_t i; \ @@ -635,7 +748,7 @@ bool GMQCC_WARN Tself##_##mem##_remove(Tself *self, size_t idx) \ return true; \ } -#define _MEM_VEC_FUN_FIND(Tself, Twhat, mem) \ +#define MEM_VEC_FUN_FIND(Tself, Twhat, mem) \ bool GMQCC_WARN Tself##_##mem##_find(Tself *self, Twhat obj, size_t *idx) \ { \ size_t i; \ @@ -650,22 +763,72 @@ bool GMQCC_WARN Tself##_##mem##_find(Tself *self, Twhat obj, size_t *idx) \ return false; \ } -#define _MEM_VEC_FUN_CLEAR(Tself, mem) \ +#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; \ - free((void*) self->mem); \ + 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) \ - free((void*)((owner)->mem)); \ - (owner)->mem = NULL; \ - (owner)->mem##_count = 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) \ @@ -676,18 +839,20 @@ void Tself##_##mem##_clear(Tself *self) \ } #define MEM_VEC_FUNCTIONS(Tself, Twhat, mem) \ -_MEM_VEC_FUN_REMOVE(Tself, Twhat, mem) \ -_MEM_VEC_FUN_ADD(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) +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 { @@ -702,4 +867,165 @@ 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 { + OVERLAP_LOCALS, + DP_STRING_TABLE_BUG, + OMIT_NULLBYTES, + + NUM_F_FLAGS +}; +static const opt_flag_def opt_flag_list[] = { + { "overlap-locals", LONGBIT(OVERLAP_LOCALS) }, + { "darkplaces-string-table-bug", LONGBIT(DP_STRING_TABLE_BUG) }, + { "omit-nullbytes", LONGBIT(OMIT_NULLBYTES) } +}; +static const size_t opt_flag_list_count = sizeof(opt_flag_list) / sizeof(opt_flag_list[0]); + +enum { + WARN_UNUSED_VARIABLE, + + NUM_W_FLAGS +}; +static const opt_flag_def opt_warn_list[] = { + /* only contains single flags, no groups like 'all' */ + { "unused-variable", LONGBIT(WARN_UNUSED_VARIABLE) } +}; +static const size_t opt_warn_list_count = sizeof(opt_warn_list) / sizeof(opt_warn_list[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 + (NUM_F_FLAGS / 32)]; +#define OPT_WARN(i) (!! (opt_warn[(i)/32] & (1<< ((i)%32)))) +extern uint32_t opt_warn[1 + (NUM_W_FLAGS / 32)]; + #endif