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>

1 files changed, 27 insertions, 5 deletions

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 1ea2b8571e1a..ef3e4f1042b5 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