From: H. Peter Anvin <hpa@zytor.com>
Date: Thu, 23 Jun 2005 07:08:09 +0000 (-0700)
Subject: [PATCH] biarch compiler support for i386
X-Git-Tag: firefly_0821_release~42766^2~123
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d0e7feb03d5ac48069c2fd57bbba61522e0ca493;p=firefly-linux-kernel-4.4.55.git

[PATCH] biarch compiler support for i386

This allows the i386 architecture to be built on a system with a biarch
compiler that defaults to x86-64, merely by specifying ARCH=i386.

As previously discussed, this uses the equivalent logic to the ppc port.

Signed-Off-By: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 1c36ca332a96..bf7c9ba709f3 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -17,6 +17,13 @@
 # 20050320  Kianusch Sayah Karadji <kianusch@sk-tech.net>
 #           Added support for GEODE CPU
 
+HAS_BIARCH      := $(call cc-option-yn, -m32)
+ifeq ($(HAS_BIARCH),y)
+AS              := $(AS) --32
+LD              := $(LD) -m elf_i386
+CC              := $(CC) -m32
+endif
+
 LDFLAGS		:= -m elf_i386
 OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
 LDFLAGS_vmlinux :=