From: Michael Brown <mcb30@ipxe.org>
Date: Wed, 24 Sep 2014 15:07:04 +0000 (+0100)
Subject: [build] Use -malign-double to build 32-bit UEFI binaries
X-Git-Tag: v1.20.1~1048
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3d86074ccf154f4439b0c5b7e8c12b1b29fd497;p=thirdparty%2Fipxe.git

[build] Use -malign-double to build 32-bit UEFI binaries

The EDK2 codebase uses -malign-double for 32-bit builds, which causes
64-bit integers to be naturally aligned.  This affects the layout of
some structures (including EFI_BLOCK_IO_MEDIA).

This mirrors wimboot commit 7b8f39d ("[build] Fix building of 32-bit
UEFI version").

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/arch/i386/Makefile.efi b/src/arch/i386/Makefile.efi
index 8d651b04d..aa809eb5d 100644
--- a/src/arch/i386/Makefile.efi
+++ b/src/arch/i386/Makefile.efi
@@ -4,6 +4,10 @@
 #
 ELF2EFI		= $(ELF2EFI32)
 
+# Use EFI ABI
+#
+CFLAGS		+= -malign-double
+
 # Include generic EFI Makefile
 #
 MAKEDEPS	+= arch/x86/Makefile.efi