| 204 | } |
| 205 | |
| 206 | void *PREFIX(malloc)(size_t req_size) |
| 207 | { |
| 208 | int startedBet = 0; |
| 209 | unsigned long long bestSize = 0; |
| 210 | void *p = NULL; |
| 211 | uintptr_t diff; |
| 212 | struct liballoc_major *maj; |
| 213 | struct liballoc_minor *min; |
| 214 | struct liballoc_minor *new_min; |
| 215 | unsigned long size = req_size; |
| 216 | |
| 217 | // For alignment, we adjust size so there's enough space to align. |
| 218 | if (ALIGNMENT > 1) |
| 219 | { |
| 220 | size += ALIGNMENT + ALIGN_INFO; |
| 221 | } |
| 222 | // So, ideally, we really want an alignment of 0 or 1 in order |
| 223 | // to save space. |
| 224 | |
| 225 | liballoc_lock(); |
| 226 | |
| 227 | if (size == 0) |
| 228 | { |
| 229 | l_warningCount += 1; |
| 230 | #if defined DEBUG || defined INFO |
| 231 | kprintf("liballoc: WARNING: alloc( 0 ) called from %x\n"); |
| 232 | FLUSH(); |
| 233 | #endif |
| 234 | liballoc_unlock(); |
| 235 | return PREFIX(malloc)(1); |
| 236 | } |
| 237 | |
| 238 | if (l_memRoot == NULL) |
| 239 | { |
| 240 | #if defined DEBUG || defined INFO |
| 241 | #ifdef DEBUG |
| 242 | kprintf("liballoc: initialization of liballoc " VERSION "\n"); |
| 243 | #endif |
| 244 | FLUSH(); |
| 245 | #endif |
| 246 | |
| 247 | // This is the first time we are being used. |
| 248 | l_memRoot = allocate_new_page(size); |
| 249 | if (l_memRoot == NULL) |
| 250 | { |
| 251 | liballoc_unlock(); |
| 252 | #ifdef DEBUG |
| 253 | kprintf("liballoc: initial l_memRoot at %p initialization failed\n", p); |
| 254 | FLUSH(); |
| 255 | #endif |
| 256 | return NULL; |
| 257 | } |
| 258 | |
| 259 | #ifdef DEBUG |
| 260 | kprintf("liballoc: set up first memory major %x\n", l_memRoot); |
| 261 | FLUSH(); |
| 262 | #endif |
| 263 | } |
nothing calls this directly
no test coverage detected