0.7.8.12:

[sbcl.git] / src / runtime / coreparse.c

diff --git a/src/runtime/coreparse.c b/src/runtime/coreparse.c
index b9bcddb..a00438c 100644 (file)
--- a/src/runtime/coreparse.c
+++ b/src/runtime/coreparse.c
@@ -34,6 +34,10 @@
 #include "interr.h"
 #include "sbcl.h"
 
+unsigned char build_id[] =
+#include "../../output/build-id.tmp"
+;
+
 static void
 process_directory(int fd, u32 *ptr, int count)
 {
@@ -172,6 +176,36 @@ load_core_file(char *file)
            }
            break;
 
+       case BUILD_ID_CORE_ENTRY_TYPE_CODE:
+           SHOW("BUILD_ID_CORE_ENTRY_TYPE_CODE case");
+           {
+               int i;
+
+               FSHOW((stderr, "build_id[]=\"%s\"\n", build_id));
+               FSHOW((stderr, "remaining_len = %d\n", remaining_len));
+               if (remaining_len != strlen(build_id))
+                   goto losing_build_id;
+               for (i = 0; i < remaining_len; ++i) {
+                   FSHOW((stderr, "ptr[%d] = char = %d, expected=%d\n",
+                          ptr[i], i, build_id[i]));
+                   if (ptr[i] != build_id[i])
+                       goto losing_build_id;
+               }
+               break;
+           losing_build_id:
+               /* .core files are not binary-compatible between
+                * builds because we can't easily detect whether the
+                * sources were patched between the time the
+                * dumping-the-.core runtime was built and the time
+                * that the loading-the-.core runtime was built.
+                *
+                * (We could easily detect whether version.lisp-expr
+                * was changed, but people experimenting with patches
+                * don't necessarily update version.lisp-expr.) */
+
+               lose("can't load .core for different runtime, sorry");
+           } 
+
        case NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE:
            SHOW("NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE case");
            process_directory(fd,