BaseTools/tools_def CLANG38: Suppress unaligned access warning

Even though the presence of the 'packed' pragma should be a strong hint
that the misaligned placement of a GUID in a struct is intentional,
recent Clang versions will object nonetheless, and break the build due
to the presence of such GUIDs in the FPDT ACPI tables.

This is obviously not something we can fix in the code, so let's just
suppress the warning/error instead.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 9bf771385e3309355758d9bde6043a21e5218f15..380d4587335ae1757c742449b5342bbe625f78a0 100755 (executable)
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -2580,7 +2580,7 @@ DEFINE CLANG38_X64_PREFIX           = ENV(CLANG38_BIN)
 DEFINE CLANG38_IA32_TARGET          = -target i686-pc-linux-gnu\r
 DEFINE CLANG38_X64_TARGET           = -target x86_64-pc-linux-gnu\r
 \r
-DEFINE CLANG38_WARNING_OVERRIDES    = -Wno-parentheses-equality -Wno-tautological-compare -Wno-tautological-constant-out-of-range-compare -Wno-empty-body -Wno-unused-const-variable -Wno-varargs -Wno-unknown-warning-option -Wno-unused-but-set-variable -Wno-unused-const-variable\r
+DEFINE CLANG38_WARNING_OVERRIDES    = -Wno-parentheses-equality -Wno-tautological-compare -Wno-tautological-constant-out-of-range-compare -Wno-empty-body -Wno-unused-const-variable -Wno-varargs -Wno-unknown-warning-option -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-unaligned-access\r
 DEFINE CLANG38_ALL_CC_FLAGS         = DEF(GCC48_ALL_CC_FLAGS) DEF(CLANG38_WARNING_OVERRIDES) -fno-stack-protector -mms-bitfields -Wno-address -Wno-shift-negative-value -Wno-unknown-pragmas -Wno-incompatible-library-redeclaration -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -msoft-float -mno-implicit-float  -ftrap-function=undefined_behavior_has_been_optimized_away_by_clang -funsigned-char -fno-ms-extensions -Wno-null-dereference\r
 \r
 ###########################\r