1 // Replacement for malloc.h which factors out platform differences. 2 3 #include <stdlib.h> 4 #if defined(VGO_darwin) 5 # include <malloc/malloc.h> 6 #else 7 # include <malloc.h> 8 #endif 9 10 #include <assert.h> 11 12 // Allocates a 16-aligned block. Asserts if the allocation fails. 13 __attribute__((unused)) 14 static void* memalign16(size_t szB) 15 { 16 void* x; 17 #if defined(VGO_darwin) 18 // Darwin lacks memalign, but its malloc is always 16-aligned anyway. 19 posix_memalign((void **)&x, 16, szB); 20 #else 21 x = memalign(16, szB); 22 #endif 23 assert(x); 24 assert(0 == ((16-1) & (unsigned long)x)); 25 return x; 26 } 27 28 // Allocates a 32-aligned block. Asserts if the allocation fails. 29 __attribute__((unused)) 30 static void* memalign32(size_t szB) 31 { 32 void* x; 33 #if defined(VGO_darwin) 34 // Darwin lacks memalign 35 posix_memalign((void **)&x, 32, szB); 36 #else 37 x = memalign(32, szB); 38 #endif 39 assert(x); 40 assert(0 == ((32-1) & (unsigned long)x)); 41 return x; 42 } 43 44 // Allocates a 64-aligned block. Asserts if the allocation fails. 45 __attribute__((unused)) 46 static void* memalign64(size_t szB) 47 { 48 void* x; 49 #if defined(VGO_darwin) 50 // Darwin lacks memalign 51 posix_memalign((void **)&x, 64, szB); 52 #else 53 x = memalign(64, szB); 54 #endif 55 assert(x); 56 assert(0 == ((64-1) & (unsigned long)x)); 57 return x; 58 } 59 60
