/*
* 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 <limits.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
/*
* Disable some over protective warnings in visual studio because fixing them is a waste
* of my time.
*/
#ifdef _MSC_VER
# pragma warning(disable : 4244 ) /* conversion from 'int' to 'float', possible loss of data */
# pragma warning(disable : 4018 ) /* signed/unsigned mismatch */
# pragma warning(disable : 4996 ) /* This function or variable may be unsafe */
# pragma warning(disable : 4700 ) /* uninitialized local variable used */
#endif
#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 <stdbool.h>). 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;
#elif LONG_MAX == 0x7FFFFFFF
typedef long int32_t;
typedef unsigned long uint32_t;
#endif
#if defined(__GNUC__) || defined (__CLANG__)
typedef int int64_t __attribute__((__mode__(__DI__)));
typedef unsigned int uint64_t __attribute__((__mode__(__DI__)));
#elif defined(_MSC_VER)
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#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
#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];
/*===================================================================*/
/*=========================== util.c ================================*/
/*===================================================================*/
FILE *util_fopen(const char *filename, const char *mode);
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);
size_t util_strtocmd (const char *, char *, size_t);
size_t util_strtononcmd (const char *, char *, size_t);
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_##N,__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 const char *type_name[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];
/* other useful lists */
extern uint16_t type_eq_instr[TYPE_COUNT];
extern uint16_t type_ne_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;
/* this is ORed to the type */
#define DEF_SAVEGLOBAL (1<<15)
#define DEF_TYPEMASK ((1<<15)-1)
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, /* NOTE: the float operands must NOT be at the same locations: A != C */
INSTR_MUL_VF, /* and here: B != C */
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 );
typedef float qcfloat;
typedef int32_t qcint;
/*
* 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);
qcint code_alloc_field (size_t qcsize);
/*===================================================================*/
/*========================= 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 },
{ "SUB_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 *);
/*===================================================================*/
/*============================= 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; \
s->mem = (Twhat*)mem_a(sizeof(Twhat) * s->mem##_alloc); \
} 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; \
s->mem##_count = 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_VECTOR_MOVE(from, mem, to, tm) \
{ \
(to)->tm = (from)->mem; \
(to)->tm##_count = (from)->mem##_count; \
(to)->tm##_alloc = (from)->mem##_alloc; \
(from)->mem = NULL; \
(from)->mem##_count = 0; \
(from)->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 {
qcfloat x, y, z;
} vector;
vector vec3_add (vector, vector);
vector vec3_sub (vector, vector);
qcfloat vec3_mulvv(vector, vector);
vector vec3_mulvf(vector, float);
/*
* 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 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);
MEM_VECTOR_MAKE(bool, entitypool);
uint16_t crc16;
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;
size_t xflags;
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);
/*===================================================================*/
/*===================== error.c message printer =====================*/
/*===================================================================*/
#ifndef WIN32
enum {
CON_BLACK = 30,
CON_RED,
CON_GREEN,
CON_BROWN,
CON_BLUE,
CON_MAGENTA,
CON_CYAN ,
CON_WHITE
};
#endif
enum {
LVL_MSG,
LVL_WARNING,
LVL_ERROR
};
void vprintmsg (int level, const char *name, size_t line, const char *msgtype, const char *msg, va_list ap);
void printmsg (int level, const char *name, size_t line, const char *msgtype, const char *msg, ...);
void cvprintmsg(lex_ctx ctx, int lvl, const char *msgtype, const char *msg, va_list ap);
void cprintmsg (lex_ctx ctx, int lvl, const char *msgtype, const char *msg, ...);
/*===================================================================*/
/*===================== parser.c commandline ========================*/
/*===================================================================*/
bool parser_init ();
bool parser_compile(const char *filename);
bool parser_finish (const char *output);
void parser_cleanup();
/*===================================================================*/
/*======================= 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;
} opts_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 opts_flag_def opts_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) WARN_##X,
# include "warns.def"
# undef GMQCC_DEFINE_FLAG
COUNT_WARNINGS
};
static const opts_flag_def opts_warn_list[] = {
# define GMQCC_DEFINE_FLAG(X) { #X, LONGBIT(WARN_##X) },
# include "warns.def"
# undef GMQCC_DEFINE_FLAG
{ NULL, LONGBIT(0) }
};
/* other options: */
enum {
COMPILER_QCC, /* circa QuakeC */
COMPILER_FTEQCC, /* fteqcc QuakeC */
COMPILER_QCCX, /* qccx QuakeC */
COMPILER_GMQCC /* this QuakeC */
};
extern uint32_t opts_O; /* -Ox */
extern const char *opts_output; /* -o file */
extern int opts_standard;
extern bool opts_debug;
extern bool opts_memchk;
extern bool opts_dump;
extern bool opts_werror;
extern bool opts_forcecrc;
extern uint16_t opts_forced_crc;
/*===================================================================*/
#define OPTS_FLAG(i) (!! (opts_flags[(i)/32] & (1<< ((i)%32))))
extern uint32_t opts_flags[1 + (COUNT_FLAGS / 32)];
#define OPTS_WARN(i) (!! (opts_warn[(i)/32] & (1<< ((i)%32))))
extern uint32_t opts_warn[1 + (COUNT_WARNINGS / 32)];
#endif