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| author | Paul Eggert <eggert@cs.ucla.edu> | 2018-05-18 15:45:42 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2018-05-18 15:49:48 -0700 |
| commit | a1c925fd41818cb8ad209762739b220efb919d1e (patch) | |
| tree | 4d3c95a065057114a49a9a3435d26479a086d8a1 /lisp/emacs-lisp/cursor-sensor.el | |
| parent | f4d9fd3dd45f767eca33fbf1beee40da790fa74e (diff) | |
| download | emacs-a1c925fd41818cb8ad209762739b220efb919d1e.tar.gz emacs-a1c925fd41818cb8ad209762739b220efb919d1e.tar.bz2 emacs-a1c925fd41818cb8ad209762739b220efb919d1e.zip | |
Port to GCC 8 -fsanitize=undefined
In GCC 8, gcc -fsanitize=undefined flags the undefined behavior
that Emacs relies on in its XPNTR and XSYMBOL low-level functions.
Disable undefined sanitization in these functions. Although this
disabling doesn’t suffice if DEFINE_KEY_OPS_AS_MACROS is true, it
works for -fsanitize=undefined -DINLINING=0, which is good enough.
* src/alloc.c (macro_PNTR_ADD): New macro.
(PNTR_ADD): New function and macro.
The function disables -fsanitize=undefined.
(macro_XPNTR): Use it.
* src/conf_post.h (ATTRIBUTE_NO_SANITIZE_UNDEFINED): New macro.
* src/lisp.h (XSYMBOL): Disable -fsanitize=undefined.
Diffstat (limited to 'lisp/emacs-lisp/cursor-sensor.el')
0 files changed, 0 insertions, 0 deletions