X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=util.c;h=7d6e034e613441843c6f3d83cae51aa94149b59d;hb=0a5353532b15fce7470f189824d252d49806bea6;hp=d695ae62f451e2de25f79c029877294cf17c6599;hpb=1dce501b7058000e19421af246ec14fd98aceab9;p=xonotic%2Fgmqcc.git diff --git a/util.c b/util.c index d695ae6..7d6e034 100644 --- a/util.c +++ b/util.c @@ -21,229 +21,38 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ -#include -#include -#include "gmqcc.h" - -/* TODO: remove globals ... */ -static uint64_t mem_ab = 0; -static uint64_t mem_db = 0; -static uint64_t mem_at = 0; -static uint64_t mem_dt = 0; -static uint64_t mem_pk = 0; -static uint64_t mem_hw = 0; - -struct memblock_t { - const char *file; - unsigned int line; - size_t byte; - struct memblock_t *next; - struct memblock_t *prev; -}; - -#define PEAK_MEM \ - do { \ - if (mem_hw > mem_pk) \ - mem_pk = mem_hw; \ - } while (0) - -static struct memblock_t *mem_start = NULL; - -void *util_memory_a(size_t byte, unsigned int line, const char *file) { - struct memblock_t *info = (struct memblock_t*)malloc(sizeof(struct memblock_t) + byte); - void *data = (void*)(info+1); - if (!info) return NULL; - info->line = line; - info->byte = byte; - info->file = file; - info->prev = NULL; - info->next = mem_start; - if (mem_start) - mem_start->prev = info; - mem_start = info; - - mem_at++; - mem_ab += info->byte; - mem_hw += info->byte; - - PEAK_MEM; - - return data; -} - -void util_memory_d(void *ptrn) { - struct memblock_t *info = NULL; - - if (!ptrn) return; - info = ((struct memblock_t*)ptrn - 1); - - mem_db += info->byte; - mem_hw -= info->byte; - mem_dt++; - - if (info->prev) - info->prev->next = info->next; - if (info->next) - info->next->prev = info->prev; - if (info == mem_start) - mem_start = info->next; - - free(info); -} - -void *util_memory_r(void *ptrn, size_t byte, unsigned int line, const char *file) { - struct memblock_t *oldinfo = NULL; - - struct memblock_t *newinfo; - - if (!ptrn) - return util_memory_a(byte, line, file); - if (!byte) { - util_memory_d(ptrn); - return NULL; - } - - oldinfo = ((struct memblock_t*)ptrn - 1); - newinfo = ((struct memblock_t*)malloc(sizeof(struct memblock_t) + byte)); - - /* new data */ - if (!newinfo) { - util_memory_d(oldinfo+1); - return NULL; - } - - /* copy old */ - memcpy(newinfo+1, oldinfo+1, oldinfo->byte); - - /* free old */ - if (oldinfo->prev) - oldinfo->prev->next = oldinfo->next; - if (oldinfo->next) - oldinfo->next->prev = oldinfo->prev; - if (oldinfo == mem_start) - mem_start = oldinfo->next; - - /* fill info */ - newinfo->line = line; - newinfo->byte = byte; - newinfo->file = file; - newinfo->prev = NULL; - newinfo->next = mem_start; - if (mem_start) - mem_start->prev = newinfo; - mem_start = newinfo; - - mem_ab -= oldinfo->byte; - mem_hw -= oldinfo->byte; - mem_ab += newinfo->byte; - mem_hw += newinfo->byte; - - PEAK_MEM; - - free(oldinfo); - - return newinfo+1; -} +#include +#include -static void util_dumpmem(struct memblock_t *memory, uint16_t cols) { - uint32_t i, j; - for (i = 0; i < memory->byte + ((memory->byte % cols) ? (cols - memory->byte % cols) : 0); i++) { - if (i % cols == 0) con_out(" 0x%06X: ", i); - if (i < memory->byte) con_out("%02X " , 0xFF & ((char*)(memory + 1))[i]); - else con_out(" "); - - if ((uint16_t)(i % cols) == (cols - 1)) { - for (j = i - (cols - 1); j <= i; j++) { - con_out("%c", - (j >= memory->byte) - ? ' ' - : (isprint(((char*)(memory + 1))[j])) - ? 0xFF & ((char*)(memory + 1)) [j] - : '.' - ); - } - con_out("\n"); - } - } -} - -void util_meminfo() { - struct memblock_t *info; - - - if (OPTS_OPTION_BOOL(OPTION_DEBUG)) { - for (info = mem_start; info; info = info->next) { - con_out("lost: %u (bytes) at %s:%u\n", - info->byte, - info->file, - info->line); - - util_dumpmem(info, OPTS_OPTION_U16(OPTION_MEMDUMPCOLS)); - } - } - - if (OPTS_OPTION_BOOL(OPTION_DEBUG) || - OPTS_OPTION_BOOL(OPTION_MEMCHK)) { - con_out("Memory information:\n\ - Total allocations: %llu\n\ - Total deallocations: %llu\n\ - Total allocated: %f (MB)\n\ - Total deallocated: %f (MB)\n\ - Total peak memory: %f (MB)\n\ - Total leaked memory: %f (MB) in %llu allocations\n", - mem_at, - mem_dt, - (float)(mem_ab) / 1048576.0f, - (float)(mem_db) / 1048576.0f, - (float)(mem_pk) / 1048576.0f, - (float)(mem_ab - mem_db) / 1048576.0f, - - /* could be more clever */ - (mem_at - mem_dt) - ); - } -} +#include "gmqcc.h" /* - * Some string utility functions, because strdup uses malloc, and we want - * to track all memory (without replacing malloc). + * Initially this was handled with a table in the gmqcc.h header, but + * much to my surprise the contents of the table was duplicated for + * each translation unit, causing all these strings to be duplicated + * for every .c file it was included into. This method culls back on + * it. This is a 'utility' function because the executor also depends + * on this for dissasembled bytecode. */ -char *_util_Estrdup(const char *s, const char *file, size_t line) { - size_t len = 0; - char *ptr = NULL; - - /* in case of -DNOTRACK */ - (void)file; - (void)line; - - if (!s) - return NULL; - - if ((len = strlen(s)) && (ptr = (char*)mem_af(len+1, line, file))) { - memcpy(ptr, s, len); - ptr[len] = '\0'; - } - return ptr; -} - -char *_util_Estrdup_empty(const char *s, const char *file, size_t line) { - size_t len = 0; - char *ptr = NULL; - - /* in case of -DNOTRACK */ - (void)file; - (void)line; - - if (!s) - return NULL; - - len = strlen(s); - if ((ptr = (char*)mem_af(len+1, line, file))) { - memcpy(ptr, s, len); - ptr[len] = '\0'; - } - return ptr; -} +const char *util_instr_str[VINSTR_END] = { + "DONE", "MUL_F", "MUL_V", "MUL_FV", + "MUL_VF", "DIV_F", "ADD_F", "ADD_V", + "SUB_F", "SUB_V", "EQ_F", "EQ_V", + "EQ_S", "EQ_E", "EQ_FNC", "NE_F", + "NE_V", "NE_S", "NE_E", "NE_FNC", + "LE", "GE", "LT", "GT", + "LOAD_F", "LOAD_V", "LOAD_S", "LOAD_ENT", + "LOAD_FLD", "LOAD_FNC", "ADDRESS", "STORE_F", + "STORE_V", "STORE_S", "STORE_ENT", "STORE_FLD", + "STORE_FNC", "STOREP_F", "STOREP_V", "STOREP_S", + "STOREP_ENT", "STOREP_FLD", "STOREP_FNC", "RETURN", + "NOT_F", "NOT_V", "NOT_S", "NOT_ENT", + "NOT_FNC", "IF", "IFNOT", "CALL0", + "CALL1", "CALL2", "CALL3", "CALL4", + "CALL5", "CALL6", "CALL7", "CALL8", + "STATE", "GOTO", "AND", "OR", + "BITAND", "BITOR" +}; void util_debug(const char *area, const char *ms, ...) { va_list va; @@ -416,257 +225,31 @@ uint16_t util_crc16(const char *k, int len, const short clamp) { } #endif -size_t util_strtocmd(const char *in, char *out, size_t outsz) { - size_t sz = 1; - for (; *in && sz < outsz; ++in, ++out, ++sz) - *out = (*in == '-') ? '_' : (isalpha(*in) && !isupper(*in)) ? *in + 'A' - 'a': *in; - *out = 0; - return sz-1; -} - -size_t util_strtononcmd(const char *in, char *out, size_t outsz) { +/* + * modifier is the match to make and the transpsition from it, while add is the upper-value that determines the + * transposion from uppercase to lower case. + */ +static GMQCC_INLINE size_t util_strtransform(const char *in, char *out, size_t outsz, const char *mod, int add) { size_t sz = 1; - for (; *in && sz < outsz; ++in, ++out, ++sz) - *out = (*in == '_') ? '-' : (isalpha(*in) && isupper(*in)) ? *in + 'a' - 'A' : *in; + for (; *in && sz < outsz; ++in, ++out, ++sz) { + *out = (*in == mod[0]) + ? mod[1] + : (util_isalpha(*in) && ((add > 0) ? util_isupper(*in) : !util_isupper(*in))) + ? *in + add + : *in; + } *out = 0; return sz-1; } -/* TODO: rewrite ... when I redo the ve cleanup */ -void _util_vec_grow(void **a, size_t i, size_t s) { - vector_t *d = vec_meta(*a); - size_t m = *a ? 2 * d->allocated +i : i+1; - void *p = mem_r((*a ? d : NULL), s * m + sizeof(vector_t)); - - if (!*a) - ((vector_t*)p)->used = 0; - *a = (vector_t*)p + 1; - - vec_meta(*a)->allocated = m; -} - -/* - * Hash table for generic data, based on dynamic memory allocations - * all around. This is the internal interface, please look for - * EXPOSED INTERFACE comment below - */ -typedef struct hash_node_t { - char *key; /* the key for this node in table */ - void *value; /* pointer to the data as void* */ - struct hash_node_t *next; /* next node (linked list) */ -} hash_node_t; - -GMQCC_INLINE size_t util_hthash(hash_table_t *ht, const char *key) { - const uint32_t mix = 0x5BD1E995; - const uint32_t rot = 24; - size_t size = strlen(key); - uint32_t hash = 0x1EF0 /* LICRC TAB */ ^ size; - uint32_t alias = 0; - const unsigned char *data = (const unsigned char*)key; - - while (size >= 4) { - alias = (data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24)); - alias *= mix; - alias ^= alias >> rot; - alias *= mix; - - hash *= mix; - hash ^= alias; - - data += 4; - size -= 4; - } - - switch (size) { - case 3: hash ^= data[2] << 16; - case 2: hash ^= data[1] << 8; - case 1: hash ^= data[0]; - hash *= mix; - } - - hash ^= hash >> 13; - hash *= mix; - hash ^= hash >> 15; - - return (size_t) (hash % ht->size); -} - -static hash_node_t *_util_htnewpair(const char *key, void *value) { - hash_node_t *node; - if (!(node = (hash_node_t*)mem_a(sizeof(hash_node_t)))) - return NULL; - - if (!(node->key = util_strdupe(key))) { - mem_d(node); - return NULL; - } - - node->value = value; - node->next = NULL; - - return node; -} - -/* - * EXPOSED INTERFACE for the hashtable implementation - * util_htnew(size) -- to make a new hashtable - * util_htset(table, key, value, sizeof(value)) -- to set something in the table - * util_htget(table, key) -- to get something from the table - * util_htdel(table) -- to delete the table - */ -hash_table_t *util_htnew(size_t size) { - hash_table_t *hashtable = NULL; - if (size < 1) - return NULL; - - if (!(hashtable = (hash_table_t*)mem_a(sizeof(hash_table_t)))) - return NULL; - - if (!(hashtable->table = (hash_node_t**)mem_a(sizeof(hash_node_t*) * size))) { - mem_d(hashtable); - return NULL; - } - - hashtable->size = size; - memset(hashtable->table, 0, sizeof(hash_node_t*) * size); - - return hashtable; -} - -void util_htseth(hash_table_t *ht, const char *key, size_t bin, void *value) { - hash_node_t *newnode = NULL; - hash_node_t *next = NULL; - hash_node_t *last = NULL; - - next = ht->table[bin]; - - while (next && next->key && strcmp(key, next->key) > 0) - last = next, next = next->next; - - /* already in table, do a replace */ - if (next && next->key && strcmp(key, next->key) == 0) { - next->value = value; - } else { - /* not found, grow a pair man :P */ - newnode = _util_htnewpair(key, value); - if (next == ht->table[bin]) { - newnode->next = next; - ht->table[bin] = newnode; - } else if (!next) { - last->next = newnode; - } else { - newnode->next = next; - last->next = newnode; - } - } -} - -void util_htset(hash_table_t *ht, const char *key, void *value) { - util_htseth(ht, key, util_hthash(ht, key), value); -} - -void *util_htgeth(hash_table_t *ht, const char *key, size_t bin) { - hash_node_t *pair = ht->table[bin]; - - while (pair && pair->key && strcmp(key, pair->key) > 0) - pair = pair->next; - - if (!pair || !pair->key || strcmp(key, pair->key) != 0) - return NULL; - - return pair->value; -} - -void *util_htget(hash_table_t *ht, const char *key) { - return util_htgeth(ht, key, util_hthash(ht, key)); -} - -void *code_util_str_htgeth(hash_table_t *ht, const char *key, size_t bin) { - hash_node_t *pair; - size_t len, keylen; - int cmp; - - keylen = strlen(key); - - pair = ht->table[bin]; - while (pair && pair->key) { - len = strlen(pair->key); - if (len < keylen) { - pair = pair->next; - continue; - } - if (keylen == len) { - cmp = strcmp(key, pair->key); - if (cmp == 0) - return pair->value; - if (cmp < 0) - return NULL; - pair = pair->next; - continue; - } - cmp = strcmp(key, pair->key + len - keylen); - if (cmp == 0) { - uintptr_t up = (uintptr_t)pair->value; - up += len - keylen; - return (void*)up; - } - pair = pair->next; - } - return NULL; -} - -/* - * Free all allocated data in a hashtable, this is quite the amount - * of work. - */ -void util_htrem(hash_table_t *ht, void (*callback)(void *data)) { - size_t i = 0; - for (; i < ht->size; i++) { - hash_node_t *n = ht->table[i]; - hash_node_t *p; - - /* free in list */ - while (n) { - if (n->key) - mem_d(n->key); - if (callback) - callback(n->value); - p = n; - n = n->next; - mem_d(p); - } - - } - /* free table */ - mem_d(ht->table); - mem_d(ht); -} - -void util_htrmh(hash_table_t *ht, const char *key, size_t bin, void (*cb)(void*)) { - hash_node_t **pair = &ht->table[bin]; - hash_node_t *tmp; - - while (*pair && (*pair)->key && strcmp(key, (*pair)->key) > 0) - pair = &(*pair)->next; - - tmp = *pair; - if (!tmp || !tmp->key || strcmp(key, tmp->key) != 0) - return; - - if (cb) - (*cb)(tmp->value); - - *pair = tmp->next; - mem_d(tmp->key); - mem_d(tmp); +size_t util_strtocmd(const char *in, char *out, size_t outsz) { + return util_strtransform(in, out, outsz, "-_", 'A'-'a'); } - -void util_htrm(hash_table_t *ht, const char *key, void (*cb)(void*)) { - util_htrmh(ht, key, util_hthash(ht, key), cb); +size_t util_strtononcmd(const char *in, char *out, size_t outsz) { + return util_strtransform(in, out, outsz, "_-", 'a'-'A'); } - -void util_htdel(hash_table_t *ht) { - util_htrem(ht, NULL); +size_t util_optimizationtostr(const char *in, char *out, size_t outsz) { + return util_strtransform(in, out, outsz, "_ ", 'a'-'A'); } /* @@ -776,7 +359,7 @@ int util_asprintf(char **ret, const char *fmt, ...) { allocated = (char*)mem_a(4096); /* A page must be enough */ strerror_s(allocated, 4096, num); - + vec_push(vector, allocated); return (const char *)allocated; } @@ -826,173 +409,10 @@ int util_asprintf(char **ret, const char *fmt, ...) { #endif /*! _MSC_VER */ -/* - * Implementation of the Mersenne twister PRNG (pseudo random numer - * generator). Implementation of MT19937. Has a period of 2^19937-1 - * which is a Mersenne Prime (hence the name). - * - * Implemented from specification and original paper: - * http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/ARTICLES/mt.pdf - * - * This code is placed in the public domain by me personally - * (Dale Weiler, a.k.a graphitemaster). - */ - -#define MT_SIZE 624 -#define MT_PERIOD 397 -#define MT_SPACE (MT_SIZE - MT_PERIOD) - -static uint32_t mt_state[MT_SIZE]; -static size_t mt_index = 0; - -static GMQCC_INLINE void mt_generate() { - /* - * The loop has been unrolled here: the original paper and implemenation - * Called for the following code: - * for (register unsigned i = 0; i < MT_SIZE; ++i) { - * register uint32_t load; - * load = (0x80000000 & mt_state[i]) // most significant 32nd bit - * load |= (0x7FFFFFFF & mt_state[(i + 1) % MT_SIZE]) // least significant 31nd bit - * - * mt_state[i] = mt_state[(i + MT_PERIOD) % MT_SIZE] ^ (load >> 1); - * - * if (load & 1) mt_state[i] ^= 0x9908B0DF; - * } - * - * This essentially is a waste: we have two modulus operations, and - * a branch that is executed every iteration from [0, MT_SIZE). - * - * Please see: http://www.quadibloc.com/crypto/co4814.htm for more - * information on how this clever trick works. - */ - static const uint32_t matrix[2] = { - 0x00000000, - 0x9908B0Df - }; - /* - * This register gives up a little more speed by instructing the compiler - * to force these into CPU registers (they're counters for indexing mt_state - * which we can force the compiler to generate prefetch instructions for) - */ - register uint32_t y; - register uint32_t i; - - /* - * Said loop has been unrolled for MT_SPACE (226 iterations), opposed - * to [0, MT_SIZE) (634 iterations). - */ - for (i = 0; i < MT_SPACE; ++i) { - y = (0x80000000 & mt_state[i]) | (0x7FFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i + MT_PERIOD] ^ (y >> 1) ^ matrix[y & 1]; - - i ++; /* loop unroll */ - - y = (0x80000000 & mt_state[i]) | (0x7FFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i + MT_PERIOD] ^ (y >> 1) ^ matrix[y & 1]; - } - - /* - * collapsing the walls unrolled (evenly dividing 396 [632-227 = 396 - * = 2*2*3*3*11]) - */ - i = MT_SPACE; - while (i < MT_SIZE - 1) { - /* - * We expand this 11 times .. manually, no macros are required - * here. This all fits in the CPU cache. - */ - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - y = (0x80000000 & mt_state[i]) | (0x7FFFFFFF & mt_state[i + 1]); - mt_state[i] = mt_state[i - MT_SPACE] ^ (y >> 1) ^ matrix[y & 1]; - ++i; - } - - /* i = mt_state[623] */ - y = (0x80000000 & mt_state[MT_SIZE - 1]) | (0x7FFFFFFF & mt_state[MT_SIZE - 1]); - mt_state[MT_SIZE - 1] = mt_state[MT_PERIOD - 1] ^ (y >> 1) ^ matrix[y & 1]; -} void util_seed(uint32_t value) { - /* - * We seed the mt_state with a LCG (linear congruential generator) - * We're operating exactly on exactly m=32, so there is no need to - * use modulus. - * - * The multipler of choice is 0x6C07865, also knows as the Borosh- - * Niederreiter multipler used for modulus 2^32. More can be read - * about this in Knuth's TAOCP Volume 2, page 106. - * - * If you don't own TAOCP something is wrong with you :-) .. so I - * also provided a link to the original paper by Borosh and - * Niederreiter. It's called "Optional Multipliers for PRNG by The - * Linear Congruential Method" (1983). - * http://en.wikipedia.org/wiki/Linear_congruential_generator - * - * From said page, it says the following: - * "A common Mersenne twister implementation, interestingly enough - * used an LCG to generate seed data." - * - * Remarks: - * The data we're operating on is 32-bits for the mt_state array, so - * there is no masking required with 0xFFFFFFFF - */ - register size_t i; - - mt_state[0] = value; - for (i = 1; i < MT_SIZE; ++i) - mt_state[i] = 0x6C078965 * (mt_state[i - 1] ^ mt_state[i - 1] >> 30) + i; + srand((int)value); } - uint32_t util_rand() { - register uint32_t y; - - /* - * This is inlined with any sane compiler (I checked) - * for some reason though, SubC seems to be generating invalid - * code when it inlines this. - */ - if (!mt_index) - mt_generate(); - - y = mt_state[mt_index]; - - /* Standard tempering */ - y ^= y >> 11; /* +7 */ - y ^= y << 7 & 0x9D2C5680; /* +4 */ - y ^= y << 15 & 0xEFC60000; /* -4 */ - y ^= y >> 18; /* -7 */ - - if(++mt_index == MT_SIZE) - mt_index = 0; - - return y; + return rand(); }