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Re: CONFIG_64BIT and CONFIG_BUILD_ELF64

To: linux-mips@linux-mips.org
Subject: Re: CONFIG_64BIT and CONFIG_BUILD_ELF64
From: Martin Michlmayr <tbm@cyrius.com>
Date: Wed, 18 Jan 2006 14:10:59 +0000
In-reply-to: <20060118125127.GA3555@linux-mips.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060118123110.GA21786@deprecation.cyrius.com> <Pine.LNX.4.64N.0601181240090.18424@blysk.ds.pg.gda.pl> <20060118125127.GA3555@linux-mips.org>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.11
* Ralf Baechle <ralf@linux-mips.org> [2006-01-18 12:51]:
> At this stage support for gcc 2.95 is decaying and soon may be removed
> entirely from the kernel.  So the time to hardwire CONFIG_BUILD_ELF64=y
> may have come.

[mips] Enable BUILD_ELF64 when 64BIT is set

New toolchain does not support building 32-bit ELF objects with 64-bit
code, so we enable BUILD_ELF64 when 64bit is on.

Ralf Baechle: "At this stage support for gcc 2.95 is decaying and soon
may be removed entirely from the kernel.  So the time to hardwire
CONFIG_BUILD_ELF64=y may have come."

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>

---
 Kconfig |   12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

--- linux-mips/arch/mips/Kconfig        2006-01-10 11:21:15.000000000 +0000
+++ new/arch/mips/Kconfig       2006-01-18 14:07:15.000000000 +0000
@@ -1722,17 +1722,7 @@
 config BUILD_ELF64
        bool "Use 64-bit ELF format for building"
        depends on 64BIT
-       help
-         A 64-bit kernel is usually built using the 64-bit ELF binary object
-         format as it's one that allows arbitrary 64-bit constructs.  For
-         kernels that are loaded within the KSEG compatibility segments the
-         32-bit ELF format can optionally be used resulting in a somewhat
-         smaller binary, but this option is not explicitly supported by the
-         toolchain and since binutils 2.14 it does not even work at all.
-
-         Say Y to use the 64-bit format or N to use the 32-bit one.
-
-         If unsure say Y.
+       default y
 
 config BINFMT_IRIX
        bool "Include IRIX binary compatibility"

-- 
Martin Michlmayr
http://www.cyrius.com/

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