From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
"H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <ak@muc.de>,
Chuck Ebbert <cebbert@redhat.com>,
Christoph Hellwig <hch@infradead.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>
Subject: [patch 22/26] Add __discard section to x86
Date: Thu, 24 Jan 2008 15:27:28 -0500 [thread overview]
Message-ID: <20080124203341.690527178@polymtl.ca> (raw)
In-Reply-To: 20080124202706.250598537@polymtl.ca
[-- Attachment #1: add-discard-section-to-x86.patch --]
[-- Type: text/plain, Size: 1794 bytes --]
Add a __discard sectionto the linker script. Code produced in this section will
not be put in the vmlinux file. This is useful when we have to calculate the
size of an instruction before actually declaring it (for alignment purposes for
instance). This is used by the immediate values.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: H. Peter Anvin <hpa@zytor.com>
CC: Andi Kleen <ak@muc.de>
CC: Chuck Ebbert <cebbert@redhat.com>
CC: Christoph Hellwig <hch@infradead.org>
CC: Jeremy Fitzhardinge <jeremy@goop.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
---
arch/x86/kernel/vmlinux_32.lds.S | 1 +
arch/x86/kernel/vmlinux_64.lds.S | 1 +
2 files changed, 2 insertions(+)
Index: linux-2.6-lttng.mm/arch/x86/kernel/vmlinux_32.lds.S
===================================================================
--- linux-2.6-lttng.mm.orig/arch/x86/kernel/vmlinux_32.lds.S 2008-01-24 14:40:42.000000000 -0500
+++ linux-2.6-lttng.mm/arch/x86/kernel/vmlinux_32.lds.S 2008-01-24 14:41:23.000000000 -0500
@@ -201,6 +201,7 @@ SECTIONS
/* Sections to be discarded */
/DISCARD/ : {
*(.exitcall.exit)
+ *(__discard)
}
STABS_DEBUG
Index: linux-2.6-lttng.mm/arch/x86/kernel/vmlinux_64.lds.S
===================================================================
--- linux-2.6-lttng.mm.orig/arch/x86/kernel/vmlinux_64.lds.S 2008-01-24 14:40:42.000000000 -0500
+++ linux-2.6-lttng.mm/arch/x86/kernel/vmlinux_64.lds.S 2008-01-24 14:41:23.000000000 -0500
@@ -226,6 +226,7 @@ SECTIONS
/DISCARD/ : {
*(.exitcall.exit)
*(.eh_frame)
+ *(__discard)
}
STABS_DEBUG
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2008-01-24 20:41 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 20:27 [patch 00/26] Instrumentation Support Enhancement (2.6.24-rc8-mm1) Mathieu Desnoyers
2008-01-24 20:27 ` [patch 01/26] Linux Kernel Markers Support for Proprierary Modules Mathieu Desnoyers
2008-01-24 22:19 ` Jon Masters
2008-01-24 20:27 ` [patch 02/26] Fix ARM to play nicely with generic Instrumentation menu Mathieu Desnoyers
2008-01-24 21:13 ` Russell King
2008-01-24 21:23 ` Mathieu Desnoyers
2008-01-24 22:17 ` Russell King
2008-01-24 20:27 ` [patch 03/26] Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig Mathieu Desnoyers
2008-01-24 21:00 ` Randy Dunlap
2008-01-24 21:05 ` Mathieu Desnoyers
2008-01-24 22:03 ` Mathieu Desnoyers
2008-01-24 23:05 ` Haavard Skinnemoen
2008-01-24 20:27 ` [patch 04/26] Kprobes - use a mutex to protect the instruction pages list Mathieu Desnoyers
2008-01-24 20:27 ` [patch 05/26] Kprobes - do not use kprobes mutex in arch code Mathieu Desnoyers
2008-01-24 20:27 ` [patch 06/26] Kprobes - declare kprobe_mutex static Mathieu Desnoyers
2008-01-24 20:27 ` [patch 07/26] Add INIT_ARRAY() to kernel.h Mathieu Desnoyers
2008-01-24 20:39 ` Jan Engelhardt
2008-01-24 20:54 ` [patch 07/26] Add INIT_ARRAY() to kernel.h (updated) Mathieu Desnoyers
2008-01-24 21:08 ` Jan Engelhardt
2008-01-24 21:18 ` Mathieu Desnoyers
2008-01-24 20:58 ` [patch 07/26] Add INIT_ARRAY() to kernel.h Randy Dunlap
2008-01-24 21:04 ` Mathieu Desnoyers
2008-01-24 22:02 ` Stefan Richter
2008-01-24 22:10 ` [patch 07/26] Add INIT_ARRAY() to kernel.h (update 2) Mathieu Desnoyers
2008-01-24 22:50 ` Alexey Dobriyan
2008-01-24 23:04 ` [patch 07/26] Add INIT_ARRAY() to kernel.h H. Peter Anvin
2008-01-25 13:14 ` Mathieu Desnoyers
2008-01-25 8:03 ` Jan Engelhardt
2008-01-24 23:03 ` H. Peter Anvin
2008-01-24 20:27 ` [patch 08/26] Text Edit Lock - Architecture Independent Code Mathieu Desnoyers
2008-01-24 20:27 ` [patch 09/26] Text Edit Lock - Alternative code for x86 Mathieu Desnoyers
2008-01-24 20:27 ` [patch 10/26] Text Edit Lock - kprobes architecture independent support Mathieu Desnoyers
2008-01-24 20:27 ` [patch 11/26] Text Edit Lock - kprobes x86 Mathieu Desnoyers
2008-01-24 20:27 ` [patch 12/26] Text Edit Lock - x86_32 standardize debug rodata Mathieu Desnoyers
2008-01-24 20:27 ` [patch 13/26] Text Edit Lock - x86_64 " Mathieu Desnoyers
2008-01-24 20:27 ` [patch 14/26] Immediate Values - Architecture Independent Code Mathieu Desnoyers
2008-01-24 20:27 ` [patch 15/26] Immediate Values - Kconfig menu in EMBEDDED Mathieu Desnoyers
2008-01-24 20:27 ` [patch 16/26] Immediate Values - x86 Optimization Mathieu Desnoyers
2008-01-24 20:27 ` [patch 17/26] Add text_poke and sync_core to powerpc Mathieu Desnoyers
2008-01-24 20:27 ` [patch 18/26] Immediate Values - Powerpc Optimization Mathieu Desnoyers
2008-01-24 20:27 ` [patch 19/26] Immediate Values - Documentation Mathieu Desnoyers
2008-01-24 20:27 ` [patch 20/26] Scheduler Profiling - Use Immediate Values Mathieu Desnoyers
2008-01-24 20:27 ` [patch 21/26] Immediate Values - Move Kprobes x86 restore_interrupt to kdebug.h Mathieu Desnoyers
2008-01-24 20:27 ` Mathieu Desnoyers [this message]
2008-01-24 20:27 ` [patch 23/26] Immediate Values - x86 Optimization NMI and MCE support Mathieu Desnoyers
2008-01-24 20:27 ` [patch 24/26] Immediate Values - Powerpc Optimization NMI " Mathieu Desnoyers
2008-01-24 20:27 ` [patch 25/26] Immediate Values Use Arch NMI and MCE Support Mathieu Desnoyers
2008-01-24 20:27 ` [patch 26/26] Linux Kernel Markers - Use Immediate Values Mathieu Desnoyers
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