diff options
Diffstat (limited to 'gold/mremap.c')
| -rw-r--r-- | gold/mremap.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/gold/mremap.c b/gold/mremap.c index 332fded..e165634 100644 --- a/gold/mremap.c +++ b/gold/mremap.c @@ -1,6 +1,6 @@ /* mremap.c -- version of mremap for gold. */ -/* Copyright 2009 Free Software Foundation, Inc. +/* Copyright 2009, 2011 Free Software Foundation, Inc. Written by Ian Lance Taylor <iant@google.com>. This file is part of gold. @@ -23,9 +23,17 @@ #include "config.h" #include "ansidecl.h" +#include <errno.h> #include <string.h> #include <sys/types.h> + +#ifdef HAVE_SYS_MMAN_H #include <sys/mman.h> +#endif + +extern void *gold_mremap (void *, size_t, size_t, int); + +#ifdef HAVE_MMAP /* This file implements mremap for systems which don't have it. The gold code requires support for mmap. However, there are systems @@ -40,11 +48,9 @@ # define MAP_ANONYMOUS MAP_ANON #endif -extern void *mremap (void *, size_t, size_t, int, ...); - void * -mremap (void *old_address, size_t old_size, size_t new_size, - int flags ATTRIBUTE_UNUSED, ...) +gold_mremap (void *old_address, size_t old_size, size_t new_size, + int flags ATTRIBUTE_UNUSED) { void *ret; @@ -57,3 +63,25 @@ mremap (void *old_address, size_t old_size, size_t new_size, (void) munmap (old_address, old_size); return ret; } + +#else /* !defined(HAVE_MMAP) */ + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *) -1) +#endif + +#ifndef ENOSYS +#define ENOSYS EINVAL +#endif + +void * +gold_mremap (void *old_address ATTRIBUTE_UNUSED, + size_t old_size ATTRIBUTE_UNUSED, + size_t new_size ATTRIBUTE_UNUSED, + int flags ATTRIBUTE_UNUSED) +{ + errno = ENOSYS; + return MAP_FAILED; +} + +#endif /* !defined(HAVE_MMAP) */ |