diff options
Diffstat (limited to 'lang/v8/files/patch-include_v8config.h')
| -rw-r--r-- | lang/v8/files/patch-include_v8config.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lang/v8/files/patch-include_v8config.h b/lang/v8/files/patch-include_v8config.h new file mode 100644 index 000000000000..5b3e5a7df644 --- /dev/null +++ b/lang/v8/files/patch-include_v8config.h @@ -0,0 +1,21 @@ +--- include/v8config.h.orig 2021-04-22 15:00:28 UTC ++++ include/v8config.h +@@ -293,7 +293,18 @@ path. Add it with -I<path> to the command line + + # define V8_HAS_CPP_ATTRIBUTE_NODISCARD (V8_HAS_CPP_ATTRIBUTE(nodiscard)) + ++// Work around Clang bug present in 9.0.1, at least. ++// ++// Clang stores alignment as a 32-bit unsigned integer, but V8 only uses ++// V8_ASSUME_ALIGNED() for a 4GB (2^32) alignment ++// (kPtrComprIsolateRootAlignment). As such, the alignment overflows and ++// becomes zero, triggering an internal Clang assertion that alignment must not ++// be zero. ++#if 0 + # define V8_HAS_BUILTIN_ASSUME_ALIGNED (__has_builtin(__builtin_assume_aligned)) ++#else ++# define V8_HAS_BUILTIN_ASSUME_ALIGNED 0 ++#endif + # define V8_HAS_BUILTIN_BSWAP16 (__has_builtin(__builtin_bswap16)) + # define V8_HAS_BUILTIN_BSWAP32 (__has_builtin(__builtin_bswap32)) + # define V8_HAS_BUILTIN_BSWAP64 (__has_builtin(__builtin_bswap64)) |