Import newlib and create makefile

1 files changed, 21 insertions, 0 deletions

diff --git a/newlib/libc/sys/sysvi386/sbrk.c b/newlib/libc/sys/sysvi386/sbrk.c
new file mode 100644
index 0000000..8ae3ed1
--- /dev/null
+++ b/newlib/libc/sys/sysvi386/sbrk.c
@@ -0,0 +1,21 @@
+extern end;
+
+static void *curbrk = (char*)&end;
+
+void *
+sbrk(incr)
+int incr; {
+	extern int errno;
+	extern int _brk(void *);
+	void *ptr = curbrk;
+	int t;
+
+	if (incr == 0)
+		return curbrk;
+	t = _brk (curbrk + incr);
+	if (t == -1 && errno)
+		return (void *)-1;
+	curbrk = ((char *)curbrk) + incr;
+	return ptr;
+}
+