/*
- * Copyright (C) 2012
- * Dale Weiler
+ * Copyright (C) 2012, 2013
+ * 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
* SOFTWARE.
*/
#include "gmqcc.h"
-/*
- * This file is empty: This is where codegen will take place: Once the
- * parser is completed, right now it on;y creates parse trees. Syntax
- * checking and other convoluted things on the parse tree need to take
- * place much like a parser.
- */
+
+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;
+
+/* This is outrageous! */
+#define QCINT_ENTRY void*
+#define QCINT_TO_HASH_ENTRY(q) ((void*)(uintptr_t)(q))
+#define HASH_ENTRY_TO_QCINT(h) ((qcint)(uintptr_t)(h))
+static ht code_string_cache;
+static qcint code_string_cached_empty;
+
+void code_push_statement(prog_section_statement *stmt, int linenum)
+{
+ vec_push(code_statements, *stmt);
+ vec_push(code_linenums, linenum);
+}
+
+void code_pop_statement()
+{
+ vec_pop(code_statements);
+ vec_pop(code_linenums);
+}
+
+void code_init() {
+ prog_section_function empty_function = {0,0,0,0,0,0,0,{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;
+
+ code_string_cache = util_htnew(OPTS_OPTIMIZATION(OPTIM_OVERLAP_STRINGS) ? 0x100 : 1024);
+
+ /*
+ * 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);
+}
+
+void *code_util_str_htgeth(hash_table_t *ht, const char *key, size_t bin);
+uint32_t code_genstring(const char *str)
+{
+ uint32_t off;
+ size_t hash;
+ QCINT_ENTRY existing;
+
+ if (!str)
+ return 0;
+
+ if (!*str) {
+ if (!code_string_cached_empty) {
+ code_string_cached_empty = vec_size(code_chars);
+ vec_push(code_chars, 0);
+ }
+ return code_string_cached_empty;
+ }
+
+ if (OPTS_OPTIMIZATION(OPTIM_OVERLAP_STRINGS)) {
+ hash = ((unsigned char*)str)[strlen(str)-1];
+ existing = code_util_str_htgeth(code_string_cache, str, hash);
+ } else {
+ hash = util_hthash(code_string_cache, str);
+ existing = util_htgeth(code_string_cache, str, hash);
+ }
+
+ if (existing)
+ return HASH_ENTRY_TO_QCINT(existing);
+
+ off = vec_size(code_chars);
+ vec_upload(code_chars, str, strlen(str)+1);
+
+ util_htseth(code_string_cache, str, hash, QCINT_TO_HASH_ENTRY(off));
+ return off;
+}
+
+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;
+
+ 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_OPTION_BOOL(OPTION_FORCECRC))
+ code_header.crc16 = OPTS_OPTION_U16(OPTION_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.version, 1, sizeof(code_header.version));
+ util_endianswap(&code_header.crc16, 1, sizeof(code_header.crc16));
+ util_endianswap(&code_header.statements, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.defs, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.fields, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.functions, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.strings, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.globals, 2, sizeof(code_header.statements.offset));
+ util_endianswap(&code_header.entfield, 1, sizeof(code_header.entfield));
+ 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));
+
+ if (lnofile) {
+ uint32_t version = 1;
+
+ fp = file_open(lnofile, "wb");
+ if (!fp)
+ return false;
+
+ util_endianswap(&version, 1, sizeof(version));
+ util_endianswap(code_linenums, vec_size(code_linenums), sizeof(code_linenums[0]));
+
+
+ if (file_write("LNOF", 4, 1, fp) != 1 ||
+ file_write(&version, sizeof(version), 1, fp) != 1 ||
+ file_write(&code_header.defs.length, sizeof(code_header.defs.length), 1, fp) != 1 ||
+ file_write(&code_header.globals.length, sizeof(code_header.globals.length), 1, fp) != 1 ||
+ file_write(&code_header.fields.length, sizeof(code_header.fields.length), 1, fp) != 1 ||
+ file_write(&code_header.statements.length, sizeof(code_header.statements.length), 1, fp) != 1 ||
+ file_write(code_linenums, sizeof(code_linenums[0]), vec_size(code_linenums), fp) != vec_size(code_linenums))
+ {
+ con_err("failed to write lno file\n");
+ }
+
+ file_close(fp);
+ fp = NULL;
+ }
+
+ fp = file_open(filename, "wb");
+ if (!fp)
+ return false;
+
+ if (1 != file_write(&code_header, sizeof(prog_header) , 1 , fp) ||
+ vec_size(code_statements) != file_write(code_statements, sizeof(prog_section_statement), vec_size(code_statements), fp) ||
+ vec_size(code_defs) != file_write(code_defs, sizeof(prog_section_def) , vec_size(code_defs) , fp) ||
+ vec_size(code_fields) != file_write(code_fields, sizeof(prog_section_field) , vec_size(code_fields) , fp) ||
+ vec_size(code_functions) != file_write(code_functions, sizeof(prog_section_function) , vec_size(code_functions) , fp) ||
+ vec_size(code_globals) != file_write(code_globals, sizeof(int32_t) , vec_size(code_globals) , fp) ||
+ vec_size(code_chars) != file_write(code_chars, 1 , vec_size(code_chars) , fp))
+ {
+ file_close(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 != INSTR_DONE)
+ 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_linenums);
+ vec_free(code_defs);
+ vec_free(code_fields);
+ vec_free(code_functions);
+ vec_free(code_globals);
+ vec_free(code_chars);
+ util_htdel(code_string_cache);
+
+ file_close(fp);
+ return true;
+}
projects / xonotic / gmqcc.git / blobdiff