Align loader to 32-bit boundary

[fw/stlink] / src / mmap.c

diff --git a/src/mmap.c b/src/mmap.c
index 7316389b99ec6eca4f9768d01030b86861aa582b..c5794da9195748e6b2cccca1cbccbc097d52a94b 100644 (file)
--- a/src/mmap.c
+++ b/src/mmap.c
@@ -1,69 +1,33 @@
-/* mmap.c -- version of mmap for gold.  */
-
-/* Copyright 2009 Free Software Foundation, Inc.
-   Written by Vladimir Simonov <sv@sw.ru>.
-
-   This file is part of gold.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
-   MA 02110-1301, USA.  */
-
-//#include "config.h"
-//#include "ansidecl.h"
-
 #include <string.h>
 #include <sys/types.h>
-#ifdef HAVE_STDLIB_H
 #include <stdlib.h>
-#endif
+#include <unistd.h>
 
 #include "mmap.h"
 
-extern ssize_t pread (int, void *, size_t, off_t);
+void *mmap (void *addr, size_t len, int prot, int flags, int fd, long long  offset) {
+
+    void *buf;
+    ssize_t count;
 
-void *
-mmap (void *__addr, size_t __len, int __prot,
-       int __flags, int __fd, long long  __offset)
-{
-  void *ret;
-  ssize_t count;
+    if ( addr || fd == -1 || (prot & PROT_WRITE)) return MAP_FAILED;
 
-  if (__addr || (__fd != -1 && (__prot & PROT_WRITE))
-             || (__flags & MAP_SHARED))
-    return MAP_FAILED;
+    buf = malloc(len);
+    if ( NULL == buf ) return MAP_FAILED;
 
-  ret = malloc (__len);
-  if (!ret)
-    return MAP_FAILED;
+    if (lseek(fd,offset,SEEK_SET) != offset) return MAP_FAILED;
 
-  if (__fd == -1)
-    return ret;
+    count = read(fd, buf, len);
 
-  count = pread (__fd, ret, __len, __offset);
-  if ((size_t) count != __len)
-    {
-    free (ret);
-    return MAP_FAILED;
+    if (count != len) {
+        free (buf);
+        return MAP_FAILED;
     }
 
-  return ret;
+    return buf;
 }
 
-int
-munmap (void *__addr, size_t __len)
-{
-  free (__addr);
-  return 0;
+int munmap (void *addr, size_t len) {
+    free (addr);
+    return 0;
 }