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authorUlrich Drepper <drepper@gmail.com>2012-01-17 19:21:09 -0500
committerUlrich Drepper <drepper@gmail.com>2012-01-17 19:21:09 -0500
commit6e4b210745556ea4d74d4dc6637994756bf2d6b5 (patch)
tree530c1943d5d3a855bace5a9c569f5349f3ee6f64 /malloc/malloc.c
parentd77e786926ef8d4af55d978b86cc525e7366acd7 (diff)
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More minor malloc cleanups
Diffstat (limited to 'malloc/malloc.c')
-rw-r--r--malloc/malloc.c25
1 files changed, 1 insertions, 24 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 5719148759..12d2211b0d 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1089,11 +1089,10 @@ typedef struct malloc_chunk* mchunkptr;
static void* _int_malloc(mstate, size_t);
static void _int_free(mstate, mchunkptr, int);
static void* _int_realloc(mstate, mchunkptr, INTERNAL_SIZE_T,
- INTERNAL_SIZE_T);
+ INTERNAL_SIZE_T);
static void* _int_memalign(mstate, size_t, size_t);
static void* _int_valloc(mstate, size_t);
static void* _int_pvalloc(mstate, size_t);
-/*static void* cALLOc(size_t, size_t);*/
static int mTRIm(mstate, size_t);
static size_t mUSABLe(void*);
static void mSTATs(void);
@@ -1140,9 +1139,6 @@ static void free_atfork(void* mem, const void *caller);
#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
# define MAP_ANONYMOUS MAP_ANON
#endif
-#if !defined(MAP_FAILED)
-# define MAP_FAILED ((char*)-1)
-#endif
#ifndef MAP_NORESERVE
# ifdef MAP_AUTORESRV
@@ -1152,28 +1148,9 @@ static void free_atfork(void* mem, const void *caller);
# endif
#endif
-/*
- Nearly all versions of mmap support MAP_ANONYMOUS,
- so the following is unlikely to be needed, but is
- supplied just in case.
-*/
-
-#ifndef MAP_ANONYMOUS
-
-static int dev_zero_fd = -1; /* Cached file descriptor for /dev/zero. */
-
-#define MMAP(addr, size, prot, flags) ((dev_zero_fd < 0) ? \
- (dev_zero_fd = open("/dev/zero", O_RDWR), \
- mmap((addr), (size), (prot), (flags), dev_zero_fd, 0)) : \
- mmap((addr), (size), (prot), (flags), dev_zero_fd, 0))
-
-#else
-
#define MMAP(addr, size, prot, flags) \
(mmap((addr), (size), (prot), (flags)|MAP_ANONYMOUS, -1, 0))
-#endif
-
/*
----------------------- Chunk representations -----------------------