zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/c6x/brk.c b/ap/build/uClibc/libc/sysdeps/linux/c6x/brk.c
new file mode 100644
index 0000000..7eb4863
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/c6x/brk.c
@@ -0,0 +1,54 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2004 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+libc_hidden_proto(brk)
+
+/* This must be initialized data because commons can't have aliases. */
+void * __curbrk attribute_hidden = 0;
+
+int brk (void *addr)
+{
+ void *newbrk;
+
+ __asm__ __volatile__ ( \
+ "mv .d1 %2, A4\n\t" \
+ "mvk .s2 %1, B0\n\t" \
+ "swe\n\t" \
+ "nop\n\t" \
+ "mv .d2 B0, %0" \
+ : "=b" (newbrk) \
+ : "i" (__NR_brk), \
+ "a" (addr) \
+ : "memory", "cc", "B0", "A4"); \
+
+ __curbrk = newbrk;
+
+ if (newbrk < addr) {
+ __set_errno (ENOMEM);
+ return -1;
+ }
+ return 0;
+}
+libc_hidden_def(brk)