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

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Message-ID: <tip-091e52c3551d3031343df24b573b770b4c6c72b6@git.kernel.org>
Date:	Wed, 29 Apr 2009 09:05:40 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 remaining parts

Commit-ID:  091e52c3551d3031343df24b573b770b4c6c72b6
Gitweb:     http://git.kernel.org/tip/091e52c3551d3031343df24b573b770b4c6c72b6
Author:     Sam Ravnborg <sam@...nborg.org>
AuthorDate: Wed, 29 Apr 2009 09:47:29 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 29 Apr 2009 10:20:35 +0200

x86, vmlinux.lds: unify remaining parts

32 bit:
- explicit page align .bss
- move ALING() out of .brk output section
- discard *(.eh_frame)

64 bit:
- move ALIGN() out of .bss output section
- move ALIGN() out of .brk output section
- use a dedicated section to define _end

[ Impact: unify and fix section alignments in linker script ]

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Tim Abbott <tabbott@....EDU>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
LKML-Reference: <1240991249-27117-13-git-send-email-sam@...nborg.org>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/kernel/vmlinux.lds.S    |   32 +++++++++++++++++++++++++++-----
 arch/x86/kernel/vmlinux_32.lds.S |   26 --------------------------
 arch/x86/kernel/vmlinux_64.lds.S |   24 ------------------------
 3 files changed, 27 insertions(+), 55 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 1ea2b85..ef3e4f1 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -359,12 +359,34 @@ SECTIONS
 	/* use another section data.init2, see PERCPU_VADDR() above */
 #endif
 
+	/* BSS */
+	. = ALIGN(PAGE_SIZE);
+	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+		__bss_start = .;
+		*(.bss.page_aligned)
+		*(.bss)
+		. = ALIGN(4);
+		__bss_stop = .;
+	}
 
-#ifdef CONFIG_X86_32
-# include "vmlinux_32.lds.S"
-#else
-# include "vmlinux_64.lds.S"
-#endif
+	. = ALIGN(PAGE_SIZE);
+	.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
+		__brk_base = .;
+		. += 64 * 1024;		/* 64k alignment slop space */
+		*(.brk_reservation)	/* areas brk users have reserved */
+		__brk_limit = .;
+	}
+
+	.end : AT(ADDR(.end) - LOAD_OFFSET) {
+		_end = .;
+	}
+
+	/* Sections to be discarded */
+	/DISCARD/ : {
+		*(.exitcall.exit)
+		*(.eh_frame)
+		*(.discard)
+	}
 
         STABS_DEBUG
         DWARF_DEBUG
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
deleted file mode 100644
index d23ee2c..0000000
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ /dev/null
@@ -1,26 +0,0 @@
-	/* BSS */
-	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
-		__bss_start = .;
-		*(.bss.page_aligned)
-		*(.bss)
-		. = ALIGN(4);
-		__bss_stop = .;
-	}
-
-	.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
-		. = ALIGN(PAGE_SIZE);
-		__brk_base = .;
-		. += 64 * 1024;		/* 64k alignment slop space */
-		*(.brk_reservation)	/* areas brk users have reserved */
-		__brk_limit = .;
-	}
-
-	.end : AT(ADDR(.end) - LOAD_OFFSET) {
-		_end = . ;
-	}
-
-	/* Sections to be discarded */
-	/DISCARD/ : {
-		*(.exitcall.exit)
-		*(.discard)
-	}
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
deleted file mode 100644
index a539366..0000000
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ /dev/null
@@ -1,24 +0,0 @@
-	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
-		. = ALIGN(PAGE_SIZE);
-		__bss_start = .;		/* BSS */
-		*(.bss.page_aligned)
-		*(.bss)
-		__bss_stop = .;
-	}
-
-	.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
-		. = ALIGN(PAGE_SIZE);
-		__brk_base = .;
-		. += 64 * 1024;		/* 64k alignment slop space */
-		*(.brk_reservation)	/* areas brk users have reserved */
-		__brk_limit = .;
-	}
-
-	_end = . ;
-
-	/* Sections to be discarded */
-	/DISCARD/ : {
-		*(.exitcall.exit)
-		*(.eh_frame)
-		*(.discard)
-	}
--
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