From: Ralf Baechle <ralf@linux-mips.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Tim Abbott" <tabbott@MIT.EDU>, "Sam Ravnborg" <sam@ravnborg.org>,
"Linux kernel mailing list" <linux-kernel@vger.kernel.org>,
"Anders Kaseorg" <andersk@MIT.EDU>,
"Waseem Daher" <wdaher@MIT.EDU>,
"Denys Vlasenko" <vda.linux@googlemail.com>,
"Rusty Russell" <rusty@rustcorp.com.au>,
"Andi Kleen" <andi@firstfloor.org>,
"H. Peter Anvin" <hpa@zytor.com>,
"Stephen Rothwell" <sfr@canb.auug.org.au>,
"Jeff Arnold" <jbarnold@MIT.EDU>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Jon Masters" <jonathan@jonmasters.org>,
"Masami Hiramatsu" <mhiramat@redhat.com>,
"Theodore Ts'o" <tytso@MIT.EDU>,
"Nikanth Karthikesan" <knikanth@suse.de>,
"Arjan van de Ven" <arjan@infradead.org>,
"Paul Mundt" <lethal@linux-sh.org>,
"Américo Wang" <xiyou.wangcong@gmail.com>,
"Kyle McMartin" <kyle@mcmartin.ca>,
"David Howells" <dhowells@redhat.com>,
"Russell King" <rmk+kernel@arm.linux.org.uk>,
"Tony Luck" <tony.luck@intel.com>
Subject: Re: [PATCH 05/15] arm: convert to use __HEAD and HEAD_TEXT macros.
Date: Tue, 28 Apr 2009 10:56:53 +0200 [thread overview]
Message-ID: <20090428085653.GA28601@linux-mips.org> (raw)
In-Reply-To: <alpine.LFD.2.00.0904270958010.22156@localhost.localdomain>
On Mon, Apr 27, 2009 at 10:06:26AM -0700, Linus Torvalds wrote:
> On Mon, 27 Apr 2009, Tim Abbott wrote:
> >
> > Does .head.text actually need its own output section here?
>
> Probably not. Does the ARM build system massage the end result some way
> looking for that .text.head section in the end? As you note, nobody else
> cares, and the proper patch may be more along the lines of something
> below.
>
> Of course, most other architectures put the "init" section at the end, and
> leave the HEAD_TEXT in the regular text section, but I suspect the ARM way
> of laying things out (init text first) is probably better, since it allows
> you to free that head code too.
There are a few platforms were due to excess bootloader primitivity (read
the boot format is a simple blob) it is desireable to have the entry point
at the lowest address of the final image - because that is what the firmware
is expecting.
Ralf
next prev parent reply other threads:[~2009-04-28 8:57 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-05 23:14 [PATCH v2 0/4] Add support for compiling with -ffunction-sections -fdata-sections Tim Abbott
2009-04-05 23:14 ` [PATCH v2 1/4] Make section names compatible " Tim Abbott
2009-04-05 23:14 ` [PATCH v2 2/4] modpost: Check the section flags, not name, to catch missing "ax"/"aw" Tim Abbott
2009-04-05 23:14 ` [PATCH v2 3/4] modpost: Support objects with more than 64k sections Tim Abbott
2009-04-05 23:14 ` [PATCH v2 4/4] x86: Add an option to compile with -ffunction-sections -fdata-sections Tim Abbott
2009-04-08 0:34 ` [PATCH v2 0/4] Add support for compiling " Tim Abbott
2009-04-08 5:22 ` Rusty Russell
2009-04-20 20:26 ` Tim Abbott
2009-04-20 23:40 ` Linus Torvalds
2009-04-21 0:26 ` Tim Abbott
2009-04-21 0:35 ` Linus Torvalds
2009-04-21 1:25 ` H. Peter Anvin
2009-04-21 1:49 ` Denys Vlasenko
2009-04-21 3:18 ` Arjan van de Ven
2009-04-21 3:26 ` Anders Kaseorg
2009-04-21 10:26 ` Andi Kleen
2009-04-21 6:01 ` Tim Abbott
2009-04-21 10:24 ` Andi Kleen
2009-04-23 20:48 ` [PATCH v3 0/3] " Tim Abbott
2009-04-23 20:49 ` [PATCH v3 1/3] Make section names compatible " Tim Abbott
2009-04-23 20:49 ` [PATCH v3 2/3] modpost: Check the section flags, not name, to catch missing "ax"/"aw" Tim Abbott
2009-04-23 20:49 ` [PATCH v3 3/3] modpost: Support objects with more than 64k sections Tim Abbott
2009-04-24 0:16 ` [PATCH v3 1/3] Make section names compatible with -ffunction-sections -fdata-sections Paul Mundt
2009-04-24 17:23 ` Sam Ravnborg
2009-04-26 2:10 ` Tim Abbott
2009-04-26 2:10 ` [PATCH 01/15] Add new HEAD_TEXT_SECTION macro Tim Abbott
2009-04-26 2:10 ` [PATCH 02/15] xtensa: convert to use __HEAD and HEAD_TEXT macros Tim Abbott
2009-04-26 2:10 ` [PATCH 03/15] alpha: " Tim Abbott
2009-04-26 2:10 ` [PATCH 04/15] frv: convert frv " Tim Abbott
2009-04-26 2:11 ` [PATCH 05/15] arm: convert " Tim Abbott
2009-04-26 2:11 ` [PATCH 06/15] ia64: " Tim Abbott
2009-04-26 2:11 ` [PATCH 07/15] m32r: " Tim Abbott
2009-04-26 2:11 ` [PATCH 08/15] m68k: " Tim Abbott
2009-04-26 2:11 ` [PATCH 09/15] mn10300: " Tim Abbott
2009-04-26 2:11 ` [PATCH 10/15] powerpc: " Tim Abbott
2009-04-26 2:11 ` [PATCH 11/15] s390: " Tim Abbott
2009-04-26 2:11 ` [PATCH 12/15] sh: " Tim Abbott
2009-04-26 2:11 ` [PATCH 13/15] sparc: " Tim Abbott
2009-04-26 2:11 ` [PATCH 14/15] x86: " Tim Abbott
2009-04-26 2:11 ` [PATCH 15/15] modpost: convert modpost to use HEAD_TEXT_SECTION macro Tim Abbott
2009-04-26 11:30 ` Sam Ravnborg
2009-04-26 22:18 ` Anders Kaseorg
2009-04-26 11:28 ` [PATCH 14/15] x86: convert to use __HEAD and HEAD_TEXT macros Sam Ravnborg
2009-04-26 16:40 ` Linus Torvalds
2009-04-26 17:12 ` Linus Torvalds
2009-04-26 18:34 ` Sam Ravnborg
2009-04-26 18:56 ` Linus Torvalds
2009-04-26 19:23 ` Sam Ravnborg
2009-04-26 21:07 ` [PATCH] x86: beautify vmlinux_64.lds.S Sam Ravnborg
2009-04-27 4:54 ` [tip:x86/kbuild] " tip-bot for Sam Ravnborg
2009-04-27 4:59 ` [PATCH 14/15] x86: convert to use __HEAD and HEAD_TEXT macros Ingo Molnar
2009-04-27 6:42 ` Sam Ravnborg
2009-04-27 7:19 ` Ingo Molnar
2009-04-27 7:37 ` Sam Ravnborg
2009-04-26 20:50 ` Andi Kleen
2009-04-27 3:47 ` Ingo Molnar
2009-04-30 10:39 ` [tip:x86/kbuild] x86: boot/compressed/vmlinux.lds.S: fix build of bzImage with 64 bit compiler tip-bot for Sam Ravnborg
2009-04-30 14:52 ` H. Peter Anvin
2009-04-30 15:09 ` Sam Ravnborg
2009-04-30 16:29 ` H. Peter Anvin
2009-04-30 17:52 ` Sam Ravnborg
2009-04-30 19:02 ` H. Peter Anvin
2009-04-26 11:24 ` [PATCH 13/15] sparc: convert to use __HEAD and HEAD_TEXT macros Sam Ravnborg
2009-04-26 11:24 ` [PATCH 12/15] sh: " Sam Ravnborg
2009-04-26 11:23 ` [PATCH 11/15] s390: " Sam Ravnborg
2009-04-26 11:23 ` [PATCH 10/15] powerpc: " Sam Ravnborg
2009-04-26 11:22 ` [PATCH 09/15] mn10300: " Sam Ravnborg
2009-04-26 11:22 ` [PATCH 08/15] m68k: " Sam Ravnborg
2009-04-26 11:21 ` [PATCH 07/15] m32r: " Sam Ravnborg
2009-04-28 3:34 ` Hirokazu Takata
2009-04-26 11:21 ` [PATCH 06/15] ia64: " Sam Ravnborg
2009-04-26 11:19 ` [PATCH 05/15] arm: " Sam Ravnborg
2009-04-27 16:46 ` Tim Abbott
2009-04-27 17:00 ` Russell King
2009-04-27 17:06 ` Linus Torvalds
2009-04-27 17:29 ` Luck, Tony
2009-04-28 8:56 ` Ralf Baechle [this message]
2009-04-26 11:16 ` [PATCH 04/15] frv: convert frv " Sam Ravnborg
2009-04-26 11:15 ` [PATCH 03/15] alpha: convert " Sam Ravnborg
2009-04-26 11:13 ` [PATCH 02/15] xtensa: " Sam Ravnborg
2009-04-26 16:29 ` [PATCH 01/15] Add new HEAD_TEXT_SECTION macro Linus Torvalds
2009-04-26 2:42 ` [PATCH v3 1/3] Make section names compatible with -ffunction-sections -fdata-sections Paul Mundt
2009-04-26 9:15 ` Sam Ravnborg
2009-04-26 9:20 ` [PATCH] kbuild: fix comment in modpost.c Sam Ravnborg
2009-04-26 17:28 ` Tim Abbott
2009-04-26 9:09 ` [PATCH v3 1/3] Make section names compatible with -ffunction-sections -fdata-sections Sam Ravnborg
2009-04-26 21:53 ` Tim Abbott
2009-04-26 13:09 ` Rusty Russell
2009-04-24 0:14 ` [PATCH v3 0/3] Add support for compiling " Paul Mundt
2009-04-24 14:19 ` Masami Hiramatsu
2009-04-24 15:32 ` Tim Abbott
2009-04-25 1:49 ` Masami Hiramatsu
2009-04-21 1:05 ` [PATCH v2 0/4] " Denys Vlasenko
2009-04-21 5:50 ` Rusty Russell
2009-04-22 12:47 ` Paul Mundt
2009-04-21 14:02 ` Américo Wang
2009-04-21 17:40 ` Anders Kaseorg
2009-04-22 11:38 ` Masami Hiramatsu
2009-04-22 17:13 ` Tim Abbott
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