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From: "Theodore Ts'o" <tytso@mit.edu>
To: linux-kernel@vger.kernel.org, hjl.tools@gmail.com
Subject: Trying to make a working kernel with the gold linker
Date: Tue, 10 Apr 2012 22:23:33 -0400	[thread overview]
Message-ID: <E1SHnDZ-0006Za-Kh@tytso-glaptop.cam.corp.google.com> (raw)


So I was trying to see if I could make the kernel build with the gold
linker (since until it can, I can't install it on my system).

I saw a message from HJ indicating one of the problems was x86_64 gold
used an incompatible max-page-size setting, so I tried changing it in
hopes that would make a bootable kernel.

No dice, it didn't work.  (At least not with a 2.20 binutils-gold.)

Does anybody know what the other issues with the gold linker?  Is the
2.22 binutils-gold more likely to work?

Thanks,

					- Ted


diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 41a7237..ad769ed 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -119,7 +119,11 @@ asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
 KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr)
 KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr)
 
+ifeq ($(CONFIG_X86_32),y)
 LDFLAGS := -m elf_$(UTS_MACHINE)
+else
+LDFLAGS := -m elf_$(UTS_MACHINE) -z max-page-size=0x200000
+endif
 
 # Speed up the build
 KBUILD_CFLAGS += -pipe

             reply	other threads:[~2012-04-11  2:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-11  2:23 Theodore Ts'o [this message]
2012-04-11  3:59 ` Trying to make a working kernel with the gold linker H. Peter Anvin
2012-04-11  4:51 ` Markus Trippelsdorf
2012-04-11 18:05   ` Ted Ts'o
2012-04-11 18:28     ` Markus Trippelsdorf
2012-04-11 19:13       ` Ted Ts'o
2012-04-11 19:18         ` H.J. Lu

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