njn | 9a55ee8 | 2009-04-15 05:35:00 +0000 | [diff] [blame] | 1 | // Replacement for malloc.h which factors out platform differences. |
| 2 | |
| 3 | #include <stdlib.h> |
njn | f76d27a | 2009-05-28 01:53:07 +0000 | [diff] [blame] | 4 | #if defined(VGO_darwin) |
| 5 | # include <malloc/malloc.h> |
| 6 | #else |
| 7 | # include <malloc.h> |
| 8 | #endif |
njn | 9a55ee8 | 2009-04-15 05:35:00 +0000 | [diff] [blame] | 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; |
njn | f76d27a | 2009-05-28 01:53:07 +0000 | [diff] [blame] | 17 | #if defined(VGO_darwin) |
| 18 | // Darwin lacks memalign, but its malloc is always 16-aligned anyway. |
sewardj | c84e18e | 2015-09-07 08:20:45 +0000 | [diff] [blame^] | 19 | posix_memalign((void **)&x, 16, szB); |
njn | f76d27a | 2009-05-28 01:53:07 +0000 | [diff] [blame] | 20 | #else |
njn | 9a55ee8 | 2009-04-15 05:35:00 +0000 | [diff] [blame] | 21 | x = memalign(16, szB); |
njn | f76d27a | 2009-05-28 01:53:07 +0000 | [diff] [blame] | 22 | #endif |
njn | 9a55ee8 | 2009-04-15 05:35:00 +0000 | [diff] [blame] | 23 | assert(x); |
| 24 | assert(0 == ((16-1) & (unsigned long)x)); |
| 25 | return x; |
rhyskidd | 681b466 | 2015-08-15 10:47:55 +0000 | [diff] [blame] | 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 | } |
njn | 9a55ee8 | 2009-04-15 05:35:00 +0000 | [diff] [blame] | 43 | |
rhyskidd | 07d0c9e | 2015-08-15 11:16:35 +0000 | [diff] [blame] | 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 | |