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-rw-r--r--dep/jemalloc/src/chunk_mmap.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/dep/jemalloc/src/chunk_mmap.c b/dep/jemalloc/src/chunk_mmap.c
deleted file mode 100644
index b9ba74191a4..00000000000
--- a/dep/jemalloc/src/chunk_mmap.c
+++ /dev/null
@@ -1,80 +0,0 @@
-#define JEMALLOC_CHUNK_MMAP_C_
-#include "jemalloc/internal/jemalloc_internal.h"
-
-/******************************************************************************/
-
-static void *
-chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero, bool *commit)
-{
- void *ret;
- size_t alloc_size;
-
- alloc_size = size + alignment - PAGE;
- /* Beware size_t wrap-around. */
- if (alloc_size < size)
- return (NULL);
- do {
- void *pages;
- size_t leadsize;
- pages = pages_map(NULL, alloc_size);
- if (pages == NULL)
- return (NULL);
- leadsize = ALIGNMENT_CEILING((uintptr_t)pages, alignment) -
- (uintptr_t)pages;
- ret = pages_trim(pages, alloc_size, leadsize, size);
- } while (ret == NULL);
-
- assert(ret != NULL);
- *zero = true;
- if (!*commit)
- *commit = pages_decommit(ret, size);
- return (ret);
-}
-
-void *
-chunk_alloc_mmap(size_t size, size_t alignment, bool *zero, bool *commit)
-{
- void *ret;
- size_t offset;
-
- /*
- * Ideally, there would be a way to specify alignment to mmap() (like
- * NetBSD has), but in the absence of such a feature, we have to work
- * hard to efficiently create aligned mappings. The reliable, but
- * slow method is to create a mapping that is over-sized, then trim the
- * excess. However, that always results in one or two calls to
- * pages_unmap().
- *
- * Optimistically try mapping precisely the right amount before falling
- * back to the slow method, with the expectation that the optimistic
- * approach works most of the time.
- */
-
- assert(alignment != 0);
- assert((alignment & chunksize_mask) == 0);
-
- ret = pages_map(NULL, size);
- if (ret == NULL)
- return (NULL);
- offset = ALIGNMENT_ADDR2OFFSET(ret, alignment);
- if (offset != 0) {
- pages_unmap(ret, size);
- return (chunk_alloc_mmap_slow(size, alignment, zero, commit));
- }
-
- assert(ret != NULL);
- *zero = true;
- if (!*commit)
- *commit = pages_decommit(ret, size);
- return (ret);
-}
-
-bool
-chunk_dalloc_mmap(void *chunk, size_t size)
-{
-
- if (config_munmap)
- pages_unmap(chunk, size);
-
- return (!config_munmap);
-}