zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/vax/brk.c b/ap/build/uClibc/libc/sysdeps/linux/vax/brk.c
new file mode 100644
index 0000000..c72ae36
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/vax/brk.c
@@ -0,0 +1,53 @@
+/* brk system call for Linux/VAX.
+ Copyright (C) 2000, 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+/* This must be initialized data because commons can't have aliases. */
+void *__curbrk attribute_hidden = NULL;
+
+int
+brk (void *addr)
+{
+ register unsigned long int result __asm__ ("%%r0");
+
+ __asm__ (
+ " pushl %%ap \n" /* Start frame */
+ " pushl %2 \n" /* New top address we wish to get */
+ " pushl $1 \n" /* One argument */
+ " movl %%sp, %%ap \n" /* Finish frame */
+ " chmk %1 \n" /* Perform the system call */
+ " addl2 $8, %%sp \n" /* Remove pushed arg */
+ " movl (%%sp)+, %%ap \n" /* Get back %AP */
+ : "=r" (result)
+ : "0" (__NR_brk),
+ "g" (addr));
+
+ if ((void *) result < addr) {
+ __set_errno (ENOMEM);
+ return -1;
+ } else
+ __curbrk = (void *) result;
+
+ return 0;
+}
+libc_hidden_def(brk)
+