build: turn on -fno-delete-null-pointer-checks

Work around spec violations in V8 where it checks that `this == NULL`. GCC 6 started exploiting this particular kind of UB, resulting in runtime crashes. Fixes: #6724 PR-URL: #6738 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Michaël Zasso <[email protected]>
nodejs · Jun 23, 2016 · 7f44ecf · 7f44ecf
1 parent ffc55f7
commit 7f44ecf
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/common.gypi b/common.gypi
@@ -179,7 +179,11 @@
       }],
       [ 'OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
         'cflags': [ '-Wall', '-Wextra', '-Wno-unused-parameter', '-pthread', ],
-        'cflags_cc': [ '-fno-rtti', '-fno-exceptions' ],
+        'cflags_cc': [
+          '-fno-delete-null-pointer-checks',
+          '-fno-exceptions',
+          '-fno-rtti',
+        ],
         'ldflags': [ '-pthread', '-rdynamic' ],
         'target_conditions': [
           ['_type=="static_library"', {