1 files changed, 18 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 668c3e809f6..c977eb490f5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,21 @@
+2014-11-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port better to AddressSanitizer.
+        These changes suffice for temacs on x86-64 with GCC 4.9.2 and
+        -fsanitize=address.
+        * alloc.c (valid_pointer_p) [ADDRESS_SANITIZER]:
+        Return -1 or 0, as the pipe trick doesn't work.
+        * alloc.c (relocatable_string_data_p, mark_object, sweep_symbols):
+        * data.c (Ffset):
+        * print.c (print_object):
+        When a pointer-check primitive returns -1, do not assume this
+        means the pointer is valid or that the underlying system has failed.
+        It could just be that addresses are being sanitized so Emacs can't
+        test for pointer validity.
+        * lisp.h (defined_GC_CHECK_STRING_BYTES): New constant.
+        (USE_STACK_STRING) [GC_CHECK_STRING_BYTES]: Now false, since the
+        string validity checker doesn't work on stack-based strings.
+
 2014-11-29  Paul Eggert  <eggert@cs.ucla.edu>
 
         Improve clarity of USE_LSB_TAG definition.