1 files changed, 19 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libcruft/__prepare_parse.c b/mdk-stage1/dietlibc/libcruft/__prepare_parse.c
new file mode 100644
index 000000000..dff1932a7
--- /dev/null
+++ b/mdk-stage1/dietlibc/libcruft/__prepare_parse.c
@@ -0,0 +1,19 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include "parselib.h"
+
+void __prepare_parse(const char* filename,struct state* s) {
+  int fd;
+  s->cur=0;
+  if (s->buffirst) return;	/* already mapped */
+  fd=open(filename,O_RDONLY);
+  if (fd>=0) {
+    s->buflen=lseek(fd,0,SEEK_END);
+    s->buffirst=mmap(0,s->buflen,PROT_READ,MAP_PRIVATE,fd,0);
+    if (s->buffirst==(const unsigned char*)-1)
+      s->buffirst=0;
+    close(fd);
+  }
+}