add libc building to agbcc.

1 files changed, 18 insertions, 0 deletions

diff --git a/libc/syscalls/syssbrk.c b/libc/syscalls/syssbrk.c
new file mode 100644
index 0000000..cee7ee1
--- /dev/null
+++ b/libc/syscalls/syssbrk.c
@@ -0,0 +1,18 @@
+/* connector for sbrk */
+
+#include <reent.h>
+#include <unistd.h>
+
+extern void *_sbrk_r (struct _reent *, size_t);
+extern void *_sbrk (size_t);
+
+void *
+sbrk (incr)
+     size_t incr;
+{
+#ifdef REENTRANT_SYSCALLS_PROVIDED
+  return _sbrk_r (_REENT, incr);
+#else
+  return _sbrk (incr);
+#endif
+}