From 0cf43ac6d78c6f47f8b91210639ac1aa63665f0b Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nicholasbishop@google.com>
Date: Thu, 6 Oct 2022 16:08:56 -0400
Subject: [PATCH 09/13] 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 https://github.com/rhboot/shim/issues/515
Signed-off-by: Nicholas Bishop <nicholasbishop@google.com>
---
Make.defaults | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Make.defaults b/Make.defaults
index dfed9c4a3c7..c46164a33ea 100644
--- 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
--
2.37.1