2014-02-11 Joey Ye <joey.ye@arm.com>

* libc/sys/arm/syscalls.c (_sbrk): Define as weak symbols.
        (_read, _write): Ditto.

newlib/ChangeLog

@@ -1,3 +1,8 @@
+2014-02-11  Joey Ye  <joey.ye@arm.com>
+
+	* libc/sys/arm/syscalls.c (_sbrk): Define as weak symbols.
+	(_read, _write): Ditto.
+
 2014-02-09  Corinna Vinschen  <vinschen@redhat.com>
 
 	* libc/include/pwd.h: Include <sys/cdefs.h>.

newlib/libc/sys/arm/syscalls.c

@@ -202,7 +202,7 @@ _swiread (int file,
 #endif
 }
 
-int
+int __attribute__((weak))
 _read (int file,
        char * ptr,
        int len)
@@ -307,7 +307,7 @@ _swiwrite (
 #endif
 }
 
-int
+int __attribute__((weak))
 _write (int    file,
 	char * ptr,
 	int    len)
@@ -451,7 +451,7 @@ _getpid (int n)
   n = n;
 }
 
-caddr_t
+caddr_t __attribute__((weak))
 _sbrk (int incr)
 {
   extern char   end asm ("end");	/* Defined by the linker.  */