X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=code.c;h=372e7eb63c68bb797216a159f9a897d9d7541106;hp=8654ced3156163a611465d63a61e753d3c0ca20b;hb=091173341eace2d290f6c0ebc4159c3afca7fbaa;hpb=0b322a8944aac54e143cf251df5636fc3b77bcfc diff --git a/code.c b/code.c index 8654ced..372e7eb 100644 --- a/code.c +++ b/code.c @@ -1,6 +1,6 @@ /* - * Copyright (C) 2012 - * Dale Weiler + * 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 @@ -20,151 +20,238 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ -#include -#include #include "gmqcc.h" -typedef struct { - uint16_t opcode; - - /* operand 1 */ - union { - int16_t s1; /* signed */ - uint16_t u1; /* unsigned */ - }; - /* operand 2 */ - union { - int16_t s2; /* signed */ - uint16_t u2; /* unsigned */ - }; - /* operand 3 */ - union { - int16_t s3; /* signed */ - uint16_t u3; /* unsigned */ - }; - - /* - * 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 type is (I assume) - * 0 = ev_void - * 1 = ev_string - * 2 = ev_float - * 3 = ev_vector - * 4 = ev_entity - * 5 = ev_field - * 6 = ev_function - * 7 = ev_pointer - * 8 = ev_bad (is this right for uint16_t type?) - */ - uint16_t type; - uint16_t offset; /* offset in file? (what about length) */ - uint32_t name; /* offset in string table? (confused :() */ -} prog_section_both; +prog_section_statement *code_statements; +prog_section_def *code_defs; +prog_section_field *code_fields; +prog_section_function *code_functions; +int *code_globals; +char *code_chars; -/* - * var and field use the same structure. But lets not use the same - * name just for safety reasons? (still castable ...). - */ -typedef prog_section_both prog_section_var; -typedef prog_section_both prog_section_field; - -typedef struct { - int32_t entry; /* in statement table for instructions */ - uint32_t args; /* What is this? */ - uint32_t locals; /* Total ints of params + locals */ - uint32_t profile; /* What is this? */ - uint32_t name; /* name of function in string table */ - uint32_t nargs; /* number of arguments */ - uint8_t argsize[8]; /* size of arguments (keep 8 always?) */ -} prog_section_function; - -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) */ - uint32_t crc16; /* What is this? */ - prog_section statements; /* prog_section_statement */ - prog_section vars; /* prog_section_var */ - 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; +uint16_t code_crc; +uint32_t code_entfields; -/* - * The macros below expand to a typesafe vector implementation, which - * can be viewed in gmqcc.h - * - * code_statements_data -- raw prog_section_statement array - * code_statements_elements -- number of elements - * code_statements_allocated -- size of the array allocated - * code_statements_add(T) -- add element (returns -1 on error) - * - * code_vars_data -- raw prog_section_var array - * code_vars_elements -- number of elements - * code_vars_allocated -- size of the array allocated - * code_vars_add(T) -- add element (returns -1 on error) - * - * code_fields_data -- raw prog_section_field array - * code_fields_elements -- number of elements - * code_fields_allocated -- size of the array allocated - * code_fields_add(T) -- add element (returns -1 on error) - * - * code_functions_data -- raw prog_section_function array - * code_functions_elements -- number of elements - * code_functions_allocated -- size of the array allocated - * code_functions_add(T) -- add element (returns -1 on error) - * - * code_globals_data -- raw prog_section_var array - * code_globals_elements -- number of elements - * code_globals_allocated -- size of the array allocated - * code_globals_add(T) -- add element (returns -1 on error) - * - * code_strings_data -- raw char* array - * code_strings_elements -- number of elements - * code_strings_allocated -- size of the array allocated - * code_strings_add(T) -- add element (returns -1 on error) - */ -VECTOR_MAKE(prog_section_statement, code_statements); -VECTOR_MAKE(prog_section_var, code_vars ); -VECTOR_MAKE(prog_section_field, code_fields ); -VECTOR_MAKE(prog_section_function, code_functions ); -VECTOR_MAKE(prog_section_var, code_globals ); -VECTOR_MAKE(char*, code_strings ); - -/* program header */ -prog_header code_header; -void code_write() { - code_header.version = 6; - code_header.crc16 = 0; /* TODO: */ - code_header.statements = (prog_section){sizeof(prog_header), code_statements_elements }; - code_header.vars = (prog_section){sizeof(prog_header)+sizeof(prog_section_statement)*code_statements_elements, code_vars_elements }; - code_header.fields = (prog_section){sizeof(prog_header)+sizeof(prog_section_var) *code_vars_elements, code_fields_elements }; - code_header.functions = (prog_section){sizeof(prog_header)+sizeof(prog_section_field) *code_fields_elements, code_functions_elements }; - code_header.globals = (prog_section){sizeof(prog_header)+sizeof(prog_section_function) *code_functions_elements, code_globals_elements }; - /* how, I think I don't have strings figured out yet :| */ - code_header.entfield = 0; /* TODO: */ - - #if 0 /* is this right? */ - fwrite(&code_header, 1, sizeof(prog_header), fp); - fwrite(code_statements_data, 1, sizeof(prog_section_statement)*code_statements_elements, fp); - fwrite(code_vars_data, 1, sizeof(prog_section_var) *code_vars_elements, fp); - fwrite(code_fields_data, 1, sizeof(prog_section_field) *code_fields_elements, fp); - fwrite(code_functions_data, 1, sizeof(prog_section_function) *code_functions_elements, fp); - fwrite(code_globals_data, 1, sizeof(prog_section_var) *code_globals_elements, fp); - #endif +void code_init() { + prog_section_function empty_function = {0,0,0,0,0,0,0,{0}}; + prog_section_statement empty_statement = {0,{0},{0},{0}}; + prog_section_def empty_def = {0, 0, 0}; + int i = 0; + + code_entfields = 0; + + /* omit creation of null code */ + if (OPTS_FLAG(OMIT_NULL_BYTES)) + return; + + /* + * The way progs.dat is suppose to work is odd, there needs to be + * some null (empty) statements, functions, and 28 globals + */ + for(; i < 28; i++) + vec_push(code_globals, 0); + + vec_push(code_chars, '\0'); + vec_push(code_functions, empty_function); + vec_push(code_statements, empty_statement); + vec_push(code_defs, empty_def); + vec_push(code_fields, empty_def); +} + +uint32_t code_genstring(const char *str) +{ + uint32_t off = vec_size(code_chars); + while (*str) { + vec_push(code_chars, *str); + ++str; + } + vec_push(code_chars, 0); + return off; +} + +uint32_t code_cachedstring(const char *str) +{ + size_t s = 0; + /* We could implement knuth-morris-pratt or something + * and also take substrings, but I'm uncomfortable with + * pointing to subparts of strings for the sake of clarity... + */ + while (s < vec_size(code_chars)) { + if (!strcmp(str, code_chars + s)) + return s; + while (code_chars[s]) ++s; + ++s; + } + return code_genstring(str); +} + +void code_test() { + prog_section_def d1 = { TYPE_VOID, 28, 1 }; + prog_section_def d2 = { TYPE_FUNCTION, 29, 8 }; + prog_section_def d3 = { TYPE_STRING, 30, 14}; + prog_section_function f1 = { 1, 0, 0, 0, 1, 0,0, {0}}; + prog_section_function f2 = {-4, 0, 0, 0, 8, 0,0, {0}}; + prog_section_function f3 = { 0, 0, 0, 0, 14+13, 0,0, {0}}; + prog_section_function f4 = { 0, 0, 0, 0, 14+13+10, 0,0, {0}}; + prog_section_function f5 = { 0, 0, 0, 0, 14+13+10+7, 0,0, {0}}; + prog_section_function f6 = { 0, 0, 0, 0, 14+13+10+7+9, 0,0, {0}}; + prog_section_statement s1 = { INSTR_STORE_F, {30}, {OFS_PARM0}, {0}}; + prog_section_statement s2 = { INSTR_CALL1, {29}, {0}, {0}}; + prog_section_statement s3 = { INSTR_RETURN, {0}, {0}, {0}}; + + strcpy(vec_add(code_chars, 0x7), "m_init"); + strcpy(vec_add(code_chars, 0x6), "print"); + strcpy(vec_add(code_chars, 0xD), "hello world\n"); + strcpy(vec_add(code_chars, 0xA), "m_keydown"); + strcpy(vec_add(code_chars, 0x7), "m_draw"); + strcpy(vec_add(code_chars, 0x9), "m_toggle"); + strcpy(vec_add(code_chars, 0xB), "m_shutdown"); + + vec_push(code_globals, 1); /* m_init */ + vec_push(code_globals, 2); /* print */ + vec_push(code_globals, 14); /* hello world in string table */ + + /* now the defs */ + vec_push(code_defs, d1); /* m_init */ + vec_push(code_defs, d2); /* print */ + vec_push(code_defs, d3); /*hello_world*/ + vec_push(code_functions, f1); /* m_init */ + vec_push(code_functions, f2); /* print */ + vec_push(code_functions, f3); /* m_keydown */ + vec_push(code_functions, f4); + vec_push(code_functions, f5); + vec_push(code_functions, f6); + vec_push(code_statements, s1); + vec_push(code_statements, s2); + vec_push(code_statements, s3); +} + +qcint code_alloc_field (size_t qcsize) +{ + qcint pos = (qcint)code_entfields; + code_entfields += qcsize; + return pos; +} + +bool code_write(const char *filename) { + prog_header code_header; + FILE *fp = NULL; + size_t it = 2; + + /* see proposal.txt */ + if (OPTS_FLAG(OMIT_NULL_BYTES)) {} + code_header.statements.offset = sizeof(prog_header); + code_header.statements.length = vec_size(code_statements); + code_header.defs.offset = code_header.statements.offset + (sizeof(prog_section_statement) * vec_size(code_statements)); + code_header.defs.length = vec_size(code_defs); + code_header.fields.offset = code_header.defs.offset + (sizeof(prog_section_def) * vec_size(code_defs)); + code_header.fields.length = vec_size(code_fields); + code_header.functions.offset = code_header.fields.offset + (sizeof(prog_section_field) * vec_size(code_fields)); + code_header.functions.length = vec_size(code_functions); + code_header.globals.offset = code_header.functions.offset + (sizeof(prog_section_function) * vec_size(code_functions)); + code_header.globals.length = vec_size(code_globals); + code_header.strings.offset = code_header.globals.offset + (sizeof(int32_t) * vec_size(code_globals)); + code_header.strings.length = vec_size(code_chars); + code_header.version = 6; + if (opts_forcecrc) + code_header.crc16 = opts_forced_crc; + else + code_header.crc16 = code_crc; + code_header.entfield = code_entfields; + + if (OPTS_FLAG(DARKPLACES_STRING_TABLE_BUG)) { + util_debug("GEN", "Patching stringtable for -fdarkplaces-stringtablebug\n"); + + /* >= + P */ + vec_push(code_chars, '\0'); /* > */ + vec_push(code_chars, '\0'); /* = */ + vec_push(code_chars, '\0'); /* P */ + } + + /* ensure all data is in LE format */ + util_endianswap(&code_header, 1, sizeof(prog_header)); + util_endianswap(code_statements, vec_size(code_statements), sizeof(prog_section_statement)); + util_endianswap(code_defs, vec_size(code_defs), sizeof(prog_section_def)); + util_endianswap(code_fields, vec_size(code_fields), sizeof(prog_section_field)); + util_endianswap(code_functions, vec_size(code_functions), sizeof(prog_section_function)); + util_endianswap(code_globals, vec_size(code_globals), sizeof(int32_t)); + + fp = util_fopen(filename, "wb"); + if (!fp) + return false; + + if (1 != fwrite(&code_header, sizeof(prog_header), 1, fp) || + vec_size(code_statements) != fwrite(code_statements, sizeof(prog_section_statement), vec_size(code_statements), fp) || + vec_size(code_defs) != fwrite(code_defs, sizeof(prog_section_def) , vec_size(code_defs) , fp) || + vec_size(code_fields) != fwrite(code_fields, sizeof(prog_section_field) , vec_size(code_fields) , fp) || + vec_size(code_functions) != fwrite(code_functions, sizeof(prog_section_function) , vec_size(code_functions) , fp) || + vec_size(code_globals) != fwrite(code_globals, sizeof(int32_t) , vec_size(code_globals) , fp) || + vec_size(code_chars) != fwrite(code_chars, 1 , vec_size(code_chars) , fp)) + { + fclose(fp); + return false; + } + + util_debug("GEN","HEADER:\n"); + util_debug("GEN"," version: = %d\n", code_header.version ); + util_debug("GEN"," crc16: = %d\n", code_header.crc16 ); + util_debug("GEN"," entfield: = %d\n", code_header.entfield); + util_debug("GEN"," statements = {.offset = % 8d, .length = % 8d}\n", code_header.statements.offset, code_header.statements.length); + util_debug("GEN"," defs = {.offset = % 8d, .length = % 8d}\n", code_header.defs .offset, code_header.defs .length); + util_debug("GEN"," fields = {.offset = % 8d, .length = % 8d}\n", code_header.fields .offset, code_header.fields .length); + util_debug("GEN"," functions = {.offset = % 8d, .length = % 8d}\n", code_header.functions .offset, code_header.functions .length); + util_debug("GEN"," globals = {.offset = % 8d, .length = % 8d}\n", code_header.globals .offset, code_header.globals .length); + util_debug("GEN"," strings = {.offset = % 8d, .length = % 8d}\n", code_header.strings .offset, code_header.strings .length); + + /* FUNCTIONS */ + util_debug("GEN", "FUNCTIONS:\n"); + for (; it < vec_size(code_functions); it++) { + size_t j = code_functions[it].entry; + util_debug("GEN", " {.entry =% 5d, .firstlocal =% 5d, .locals =% 5d, .profile =% 5d, .name =% 5d, .file =% 5d, .nargs =% 5d, .argsize ={%d,%d,%d,%d,%d,%d,%d,%d} }\n", + code_functions[it].entry, + code_functions[it].firstlocal, + code_functions[it].locals, + code_functions[it].profile, + code_functions[it].name, + code_functions[it].file, + code_functions[it].nargs, + code_functions[it].argsize[0], + code_functions[it].argsize[1], + code_functions[it].argsize[2], + code_functions[it].argsize[3], + code_functions[it].argsize[4], + code_functions[it].argsize[5], + code_functions[it].argsize[6], + code_functions[it].argsize[7] + + ); + util_debug("GEN", " NAME: %s\n", &code_chars[code_functions[it].name]); + /* Internal functions have no code */ + if (code_functions[it].entry >= 0) { + util_debug("GEN", " CODE:\n"); + for (;;) { + if (code_statements[j].opcode != AINSTR_END) + util_debug("GEN", " %-12s {% 5i,% 5i,% 5i}\n", + asm_instr[code_statements[j].opcode].m, + code_statements[j].o1.s1, + code_statements[j].o2.s1, + code_statements[j].o3.s1 + ); + else { + util_debug("GEN", " DONE {0x00000,0x00000,0x00000}\n"); + break; + } + j++; + } + } + } + + vec_free(code_statements); + vec_free(code_defs); + vec_free(code_fields); + vec_free(code_functions); + vec_free(code_globals); + vec_free(code_chars); + fclose(fp); + return true; }