/* * 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. */ #include "gmqcc.h" prog_section_statement *code_statements; int *code_linenums; prog_section_def *code_defs; prog_section_field *code_fields; prog_section_function *code_functions; int *code_globals; char *code_chars; uint16_t code_crc; uint32_t code_entfields; void code_push_statement(prog_section_statement *stmt, int linenum) { vec_push(code_statements, *stmt); vec_push(code_linenums, linenum); } 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); code_push_statement(&empty_statement, 0); 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, const char *lnofile) { 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 */ } if (lnofile) { uint32_t lnotype = *(unsigned int*)"LNOF"; uint32_t version = 1; fp = util_fopen(lnofile, "wb"); if (!fp) return false; if (fwrite(&lnotype, sizeof(lnotype), 1, fp) != 1 || fwrite(&version, sizeof(version), 1, fp) != 1 || fwrite(&code_header.defs.length, sizeof(code_header.defs.length), 1, fp) != 1 || fwrite(&code_header.globals.length, sizeof(code_header.globals.length), 1, fp) != 1 || fwrite(&code_header.fields.length, sizeof(code_header.fields.length), 1, fp) != 1 || fwrite(&code_header.statements.length, sizeof(code_header.statements.length), 1, fp) != 1 || fwrite(code_linenums, sizeof(code_linenums[0]), vec_size(code_linenums), fp) != vec_size(code_linenums)) { con_err("failed to write lno file\n"); } /* h = SafeOpenWrite (destfile, 2*1024*1024); SafeWrite (h, &lnotype, sizeof(int)); SafeWrite (h, &version, sizeof(int)); SafeWrite (h, &numglobaldefs, sizeof(int)); SafeWrite (h, &numpr_globals, sizeof(int)); SafeWrite (h, &numfielddefs, sizeof(int)); SafeWrite (h, &numstatements, sizeof(int)); SafeWrite (h, statement_linenums, numstatements*sizeof(int)); SafeClose (h); */ fclose(fp); fp = NULL; } /* 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; }