diff options
Diffstat (limited to 'src/ralloc.c')
| -rw-r--r-- | src/ralloc.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/src/ralloc.c b/src/ralloc.c index 6ef6a1f0cd1..23ff1dcb930 100644 --- a/src/ralloc.c +++ b/src/ralloc.c @@ -1317,18 +1317,7 @@ static struct mmap_region *mmap_find P_ ((POINTER_TYPE *, POINTER_TYPE *)); POINTER_TYPE *r_alloc P_ ((POINTER_TYPE **, size_t)); POINTER_TYPE *r_re_alloc P_ ((POINTER_TYPE **, size_t)); void r_alloc_free P_ ((POINTER_TYPE **ptr)); - - -void -r_alloc_init_fd () -{ -#if !MAP_ANON - /* No anonymous mmap -- we need the file descriptor. */ - mmap_fd = open ("/dev/zero", O_RDONLY); - if (mmap_fd < 0) - fatal ("cannot open /dev/zero"); -#endif -} +void r_alloc_init_fd (); /* Return a region overlapping address range START...END, or null if none. END is not including, i.e. the last byte in the range @@ -1667,6 +1656,21 @@ r_alloc_free (var) extern POINTER (*__morecore) (); #endif +/* Set up the file descriptor for non-anonymous mmapping. */ + +void +r_alloc_init_fd () +{ +#ifdef REL_ALLOC_MMAP +#if !MAP_ANON + /* No anonymous mmap -- we need the file descriptor. */ + mmap_fd = open ("/dev/zero", O_RDONLY); + if (mmap_fd < 0) + fatal ("cannot open /dev/zero"); +#endif +#endif +} + /* Initialize various things for memory allocation. */ static void |