commit 506cc5e06043ba0819cc8f7c9190826faf47b1d6
author Nicolas Capens <capn@google.com> Mon Jul 24 11:30:55 2017 -0400
committer Nicolas Capens <nicolascapens@google.com> Tue Jul 25 02:20:19 2017 +0000
tree 121e0752bf0f20411fe1439fd64a43556bd5c38d
parent cfd963201e004f8b9b5b631812960d6985f03e75

Suppress UBSan false positives.

Function pointers from exported functions are wrongly flagged as being
of incorrect type. This happens both on libEGL and libGLESv2 entry
functions, as well as functions called between them.

Bug chromium:746914

Change-Id: I2bf5a8f06546c233ede7a4820c0cda3e997f096e
Reviewed-on: https://swiftshader-review.googlesource.com/10868
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>

BUILD.gn

diff --git a/BUILD.gn b/BUILD.gn
index 52a78e8..4ea872f 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -30,6 +30,7 @@
       "_CRT_SECURE_NO_DEPRECATE",
       "NOMINMAX",
       "_WINDLL",
+      "NO_SANITIZE_FUNCTION=",
     ]
 
     if (is_debug) {
@@ -48,6 +49,7 @@
     defines += [
       "__STDC_CONSTANT_MACROS",
       "__STDC_LIMIT_MACROS",
+      "NO_SANITIZE_FUNCTION=__attribute__((no_sanitize(\"function\")))",
     ]
 
     if (is_debug) {