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Subject[tip:x86/kbuild] x86, vmlinux.lds: unify remaining parts
Commit-ID:  091e52c3551d3031343df24b573b770b4c6c72b6
Gitweb: http://git.kernel.org/tip/091e52c3551d3031343df24b573b770b4c6c72b6
Author: Sam Ravnborg <sam@ravnborg.org>
AuthorDate: Wed, 29 Apr 2009 09:47:29 +0200
Committer: Ingo Molnar <mingo@elte.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@ravnborg.org>
Cc: Tim Abbott <tabbott@MIT.EDU>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1240991249-27117-13-git-send-email-sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.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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