]> git.xonotic.org Git - xonotic/gmqcc.git/blobdiff - code.c
gitignore: add gmqcc, gmqpak, qmcvm, testsuite, pak.
[xonotic/gmqcc.git] / code.c
diff --git a/code.c b/code.c
index 42a55959ff131282d48ab71250087970cecb78ae..b0ce2baa04aa138b24a81004257414b7ad81a3cc 100644 (file)
--- a/code.c
+++ b/code.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012
+ * Copyright (C) 2012, 2013
  *     Dale Weiler
  *     Wolfgang Bumiller
  *
  */
 #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)
+/* 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))
+
+void code_push_statement(code_t *code, prog_section_statement *stmt, int linenum)
 {
-    vec_push(code_statements, *stmt);
-    vec_push(code_linenums,   linenum);
+    vec_push(code->statements, *stmt);
+    vec_push(code->linenums,   linenum);
 }
 
-void code_pop_statement()
+void code_pop_statement(code_t *code)
 {
-    vec_pop(code_statements);
-    vec_pop(code_linenums);
+    vec_pop(code->statements);
+    vec_pop(code->linenums);
 }
 
-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_t *code_init() {
+    static prog_section_function  empty_function  = {0,0,0,0,0,0,0,{0,0,0,0,0,0,0,0}};
+    static prog_section_statement empty_statement = {0,{0},{0},{0}};
+    static prog_section_def       empty_def       = {0, 0, 0};
+
+    code_t *code       = (code_t*)mem_a(sizeof(code_t));
+    int     i          = 0;
 
-    code_entfields = 0;
+    memset(code, 0, sizeof(code_t));
+    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->globals, 0);
+
+    vec_push(code->chars, '\0');
+    vec_push(code->functions,  empty_function);
 
-    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);
+    code_push_statement(code, &empty_statement, 0);
+
+    vec_push(code->defs,    empty_def);
+    vec_push(code->fields,  empty_def);
+
+    return code;
 }
 
-uint32_t code_genstring(const char *str)
+void *code_util_str_htgeth(hash_table_t *ht, const char *key, size_t bin);
+
+uint32_t code_genstring(code_t *code, const char *str)
 {
-    uint32_t off = vec_size(code_chars);
-    while (*str) {
-        vec_push(code_chars, *str);
-        ++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;
     }
-    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;
+    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);
     }
-    return code_genstring(str);
+
+    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 code_alloc_field (code_t *code, size_t qcsize)
 {
-    qcint pos = (qcint)code_entfields;
-    code_entfields += qcsize;
+    qcint pos = (qcint)code->entfields;
+    code->entfields += qcsize;
     return pos;
 }
 
-bool code_write(const char *filename, const char *lnofile) {
+bool code_write(code_t *code, 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.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;
+
+    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;
+        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 */
+        vec_push(code->chars, '\0'); /* > */
+        vec_push(code->chars, '\0'); /* = */
+        vec_push(code->chars, '\0'); /* P */
     }
 
     /* ensure all data is in LE format */
@@ -144,51 +158,51 @@ bool code_write(const char *filename, const char *lnofile) {
     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));
+    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 lnotype = *(unsigned int*)"LNOF";
         uint32_t version = 1;
 
-        fp = util_fopen(lnofile, "wb");
+        fp = fs_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]));
+        util_endianswap(&version,      1,                         sizeof(version));
+        util_endianswap(code->linenums, vec_size(code->linenums), sizeof(code->linenums[0]));
+
 
-        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))
+        if (fs_file_write("LNOF",                           4,                                       1,                        fp) != 1 ||
+            fs_file_write(&version,                         sizeof(version),                         1,                        fp) != 1 ||
+            fs_file_write(&code_header.defs.length,        sizeof(code_header.defs.length),        1,                        fp) != 1 ||
+            fs_file_write(&code_header.globals.length,     sizeof(code_header.globals.length),     1,                        fp) != 1 ||
+            fs_file_write(&code_header.fields.length,      sizeof(code_header.fields.length),      1,                        fp) != 1 ||
+            fs_file_write(&code_header.statements.length,  sizeof(code_header.statements.length),  1,                        fp) != 1 ||
+            fs_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");
         }
 
-        fclose(fp);
+        fs_file_close(fp);
         fp = NULL;
     }
 
-    fp = util_fopen(filename, "wb");
+    fp = fs_file_open(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))
+    if (1                          != fs_file_write(&code_header,    sizeof(prog_header)           , 1                         , fp) ||
+        vec_size(code->statements) != fs_file_write(code->statements, sizeof(prog_section_statement), vec_size(code->statements), fp) ||
+        vec_size(code->defs)       != fs_file_write(code->defs,       sizeof(prog_section_def)      , vec_size(code->defs)      , fp) ||
+        vec_size(code->fields)     != fs_file_write(code->fields,     sizeof(prog_section_field)    , vec_size(code->fields)    , fp) ||
+        vec_size(code->functions)  != fs_file_write(code->functions,  sizeof(prog_section_function) , vec_size(code->functions) , fp) ||
+        vec_size(code->globals)    != fs_file_write(code->globals,    sizeof(int32_t)               , vec_size(code->globals)   , fp) ||
+        vec_size(code->chars)      != fs_file_write(code->chars,      1                             , vec_size(code->chars)     , fp))
     {
-        fclose(fp);
+        fs_file_close(fp);
         return false;
     }
 
@@ -205,37 +219,37 @@ bool code_write(const char *filename, const char *lnofile) {
 
     /* FUNCTIONS */
     util_debug("GEN", "FUNCTIONS:\n");
-    for (; it < vec_size(code_functions); it++) {
-        size_t j = code_functions[it].entry;
+    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]
+            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]);
+        util_debug("GEN", "    NAME: %s\n", &code->chars[code->functions[it].name]);
         /* Internal functions have no code */
-        if (code_functions[it].entry >= 0) {
+        if (code->functions[it].entry >= 0) {
             util_debug("GEN", "    CODE:\n");
             for (;;) {
-                if (code_statements[j].opcode != INSTR_DONE)
+                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
+                        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");
@@ -246,13 +260,17 @@ bool code_write(const char *filename, const char *lnofile) {
         }
     }
 
-    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);
-    fclose(fp);
+    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);
+
+    fs_file_close(fp);
+    mem_d(code);
     return true;
 }