Add -malign-double to IA32 compiler flags

This changes the alignment of UINT64 data to 8 bytes on IA32, which matches EDK2's understanding of alignment. In particular this change affects the offset where shim writes `EFI_LOADED_IMAGE.ImageSize`. Fixes #515 Signed-off-by: Nicholas Bishop <[email protected]>
rhboot · Nov 14, 2022 · 0cf43ac · 0cf43ac
1 parent ea4911c
commit 0cf43ac
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Make.defaults b/Make.defaults
@@ -71,7 +71,7 @@ ifeq ($(ARCH),x86_64)
 endif
 ifeq ($(ARCH),ia32)
 	ARCH_CFLAGS		?= -mno-mmx -mno-sse -mno-red-zone -nostdinc \
-				   $(CLANG_BUGS) -m32 \
+				   $(CLANG_BUGS) -m32 -malign-double \
 				   -DMDE_CPU_IA32 -DPAGE_SIZE=4096
 	ARCH_GNUEFI		?= ia32
 	ARCH_SUFFIX		?= ia32