diff options
Diffstat (limited to 'linux-user')
-rw-r--r-- | linux-user/mmap.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 9c062e7078..fd315aaabb 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -77,58 +77,6 @@ void mmap_unlock(void) } #endif -void *qemu_vmalloc(size_t size) -{ - void *p; - - mmap_lock(); - /* Use map and mark the pages as used. */ - p = mmap(NULL, size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - mmap_unlock(); - return p; -} - -void *qemu_malloc(size_t size) -{ - char * p; - size += 16; - p = qemu_vmalloc(size); - *(size_t *)p = size; - return p + 16; -} - -/* We use map, which is always zero initialized. */ -void * qemu_mallocz(size_t size) -{ - return qemu_malloc(size); -} - -void qemu_free(void *ptr) -{ - /* FIXME: We should unmark the reserved pages here. However this gets - complicated when one target page spans multiple host pages, so we - don't bother. */ - size_t *p; - p = (size_t *)((char *)ptr - 16); - munmap(p, *p); -} - -void *qemu_realloc(void *ptr, size_t size) -{ - size_t old_size, copy; - void *new_ptr; - - if (!ptr) - return qemu_malloc(size); - old_size = *(size_t *)((char *)ptr - 16); - copy = old_size < size ? old_size : size; - new_ptr = qemu_malloc(size); - memcpy(new_ptr, ptr, copy); - qemu_free(ptr); - return new_ptr; -} - /* NOTE: all the constants are the HOST ones, but addresses are target. */ int target_mprotect(abi_ulong start, abi_ulong len, int prot) { |