linux-kernel - [PATCH] MIPS: malta: Set load address for 32bit kernel correctly

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Message-ID: <20200405082451.694910-1-jiaxun.yang@flygoat.com>
Date:   Sun,  5 Apr 2020 16:24:49 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     linux-mips@...r.kernel.org
Cc:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Fangrui Song <maskray@...gle.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] MIPS: malta: Set load address for 32bit kernel correctly

LLD failed to link vmlinux with 64bit load address for 32bit ELF
while bfd will strip 64bit address into 32bit silently.
To fix LLD build, we should supply a 32bit load address for 32bit
kernel.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
Reviewed-by: Fangrui Song <maskray@...gle.com>
Tested-by: Nathan Chancellor <natechancellor@...il.com>
---
 arch/mips/mti-malta/Platform | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/mips/mti-malta/Platform b/arch/mips/mti-malta/Platform
index 2cc72c9b38e3..f9b49cba1764 100644
--- a/arch/mips/mti-malta/Platform
+++ b/arch/mips/mti-malta/Platform
@@ -6,6 +6,10 @@ cflags-$(CONFIG_MIPS_MALTA)	+= -I$(srctree)/arch/mips/include/asm/mach-malta
 ifdef CONFIG_KVM_GUEST
     load-$(CONFIG_MIPS_MALTA)	+= 0x0000000040100000
 else
+ifdef CONFIG_64BIT
     load-$(CONFIG_MIPS_MALTA)	+= 0xffffffff80100000
+else
+    load-$(CONFIG_MIPS_MALTA)	+= 0x80100000
+endif
 endif
 all-$(CONFIG_MIPS_MALTA)	:= $(COMPRESSION_FNAME).bin
-- 
2.26.0.rc2