1 files changed, 120 insertions, 0 deletions
diff --git a/newlib/libc/sys/arc/stubs.c b/newlib/libc/sys/arc/stubs.c
new file mode 100644
index 0000000..1ac02de
--- /dev/null
+++ b/newlib/libc/sys/arc/stubs.c
@@ -0,0 +1,120 @@
+#include <sys/types.h>
+#include <sys/errno.h>
+#include <sys/stat.h>
+#include <stdio.h>
+
+extern char __start_heap;
+extern char __end_heap;
+
+void
+_init()
+{
+}
+
+
+extern void _exit_halt();
+void
+_exit(int i)
+{
+  _exit_halt();
+}
+
+int
+_open(const char* path, int flag, int mode)
+{
+  return 0;
+}
+
+
+caddr_t 
+_sbrk (size_t nbytes)
+{
+  static char* heap_ptr = NULL;
+  char* prev_heap_ptr;
+
+  if (heap_ptr == NULL) 
+  {
+    heap_ptr = &__start_heap;
+  }
+
+  /* Align the 'heap_ptr' so that memory will always be allocated at word
+     boundaries. */
+  heap_ptr = (char *) ((((unsigned long) heap_ptr) + 7) & ~7);
+  prev_heap_ptr = heap_ptr;
+
+  if ((heap_ptr + nbytes) < &__end_heap) 
+  {
+    heap_ptr += nbytes;
+    return (caddr_t) prev_heap_ptr;
+  } 
+
+  errno = ENOMEM;
+  return (caddr_t) -1;
+}
+
+
+int
+_read(int handle, char *buffer, unsigned int length)
+{
+  return 0;
+}
+
+int
+_write(int handle, const char *buffer, unsigned int length)
+{
+    return length;
+}
+
+int
+_lseek(int file, int ptr, int dir)
+{
+  return 0;
+}
+
+int
+_close(int handle)
+{
+  return -1; 
+}
+
+int
+_fstat(int file, struct stat *st)
+{
+  st->st_mode = S_IFCHR;
+  return 0;
+}
+
+int
+isatty(int file)
+{
+  return 1; 
+}
+
+void
+_kill(int pid, int val)
+{
+  _exit(val);
+}
+
+_getpid()
+{
+  return 1;
+}
+
+time_t
+time(time_t *t)
+{
+  return -1;
+}
+
+int
+_fork()
+{
+  return -1;
+}
+
+unsigned
+sleep(unsigned n)
+{
+  return -1;
+}