linux-kernel - [tip:x86/kbuild] x86, vmlinux.lds: unify parainstructions

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Message-ID: <tip-ae61836289a415351caa524d328110aaeae100d4@git.kernel.org>
Date:	Wed, 29 Apr 2009 09:05:08 GMT
From:	tip-bot for Sam Ravnborg <sam@...nborg.org>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	torvalds@...ux-foundation.org, sam@...nborg.org, tabbott@....EDU,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/kbuild] x86, vmlinux.lds: unify parainstructions

Commit-ID:  ae61836289a415351caa524d328110aaeae100d4
Gitweb:     http://git.kernel.org/tip/ae61836289a415351caa524d328110aaeae100d4
Author:     Sam Ravnborg <sam@...nborg.org>
AuthorDate: Wed, 29 Apr 2009 09:47:26 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 29 Apr 2009 10:20:33 +0200

x86, vmlinux.lds: unify parainstructions

32 bit:

 - increase alignment from 4 to 8 for .parainstructions
 - increase alignment from 4 to 8 for .altinstructions

64 bit:

 - move ALIGN() outside output section for .altinstructions

None of the above should result in any functional change.

[ Impact: refactor and unify linker script ]

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Tim Abbott <tabbott@....EDU>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
LKML-Reference: <1240991249-27117-10-git-send-email-sam@...nborg.org>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/kernel/vmlinux.lds.S    |   18 ++++++++++++++++++
 arch/x86/kernel/vmlinux_32.lds.S |   18 ------------------
 arch/x86/kernel/vmlinux_64.lds.S |   18 ------------------
 3 files changed, 18 insertions(+), 36 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 8b203c4..c8dd71e 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -291,6 +291,24 @@ SECTIONS
 
 	SECURITY_INIT
 
+	. = ALIGN(8);
+	.parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
+		__parainstructions = .;
+		*(.parainstructions)
+		__parainstructions_end = .;
+	}
+
+	. = ALIGN(8);
+	.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
+		__alt_instructions = .;
+		*(.altinstructions)
+		__alt_instructions_end = .;
+	}
+
+	.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
+		*(.altinstr_replacement)
+	}
+
 
 #ifdef CONFIG_X86_32
 # include "vmlinux_32.lds.S"
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index d8ba539..5df9647 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -1,21 +1,3 @@
-	. = ALIGN(4);
-	.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .;
-	}
-
-	.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
-		*(.altinstr_replacement)
-	}
-
-	. = ALIGN(4);
-	.parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
-		__parainstructions = .;
-		*(.parainstructions)
-		__parainstructions_end = .;
-	}
-
 	/*
 	 * .exit.text is discard at runtime, not link time, to deal with
 	 *  references from .altinstructions and .eh_frame
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 0e8054e..9ef7096 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -1,21 +1,3 @@
-	. = ALIGN(8);
-	.parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
-		__parainstructions = .;
-		*(.parainstructions)
-		__parainstructions_end = .;
-	}
-
-	.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
-		. = ALIGN(8);
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .;
-	}
-
-	.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
-		*(.altinstr_replacement)
-	}
-
 	/*
 	 * .exit.text is discard at runtime, not link time, to deal with
 	 *  references from .altinstructions and .eh_frame
--
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