# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxxxxx>
# Node ID 6f36370e373a4a75d0c3a6695a3cef7f1adb8ce6
# Parent 965df40965e5fa684e0c8fe38dc4950af5b37c84
[LINUX] Move .bss declaration after .data.* in x86_64 linker script.
Older binutils (prior to 2.16) have a problem with the linker script resulting
from the change introducing explicit segment maps. Namely does the
respective linker not properly handle @nobits sections (i.e. .bss) sitting
between @progbits ones (i.e. .data.*). The .bss section must therefore
be moved past all initialized sections (as is already the case on i386).
Replacement patch attached.
From: Jan Beulich <jbeulich@xxxxxxxxxx>
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxxxxx>
---
patches/linux-2.6.16.13/x86_64-put-note-sections-into-a-pt_note-segment-in-vmlinux.patch
| 27 +++++++---
1 files changed, 21 insertions(+), 6 deletions(-)
diff -r 965df40965e5 -r 6f36370e373a
patches/linux-2.6.16.13/x86_64-put-note-sections-into-a-pt_note-segment-in-vmlinux.patch
---
a/patches/linux-2.6.16.13/x86_64-put-note-sections-into-a-pt_note-segment-in-vmlinux.patch
Fri Sep 08 16:45:39 2006 -0700
+++
b/patches/linux-2.6.16.13/x86_64-put-note-sections-into-a-pt_note-segment-in-vmlinux.patch
Sat Sep 09 20:48:16 2006 +0100
@@ -1,5 +1,3 @@ diff --git a/arch/x86_64/kernel/vmlinux.
-diff --git a/arch/x86_64/kernel/vmlinux.lds.S
b/arch/x86_64/kernel/vmlinux.lds.S
-index 7c4de31..ef418b3 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -13,6 +13,12 @@ OUTPUT_FORMAT("elf64-x86-64", "elf64-x86
@@ -24,7 +22,7 @@ index 7c4de31..ef418b3 100644
/* out-of-line lock text */
.text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) }
-@@ -57,7 +63,7 @@ #endif
+@@ -57,17 +63,10 @@ #endif
.data : AT(ADDR(.data) - LOAD_OFFSET) {
*(.data)
CONSTRUCTORS
@@ -33,7 +31,17 @@ index 7c4de31..ef418b3 100644
_edata = .; /* End of data section */
-@@ -89,7 +95,7 @@ #define VVIRT_OFFSET (VSYSCALL_ADDR - VS
+- __bss_start = .; /* BSS */
+- .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+- *(.bss.page_aligned)
+- *(.bss)
+- }
+- __bss_stop = .;
+-
+ . = ALIGN(PAGE_SIZE);
+ . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
+@@ -89,7 +88,7 @@ #define VVIRT_OFFSET (VSYSCALL_ADDR - VS
#define VVIRT(x) (ADDR(x) - VVIRT_OFFSET)
. = VSYSCALL_ADDR;
@@ -42,7 +50,7 @@ index 7c4de31..ef418b3 100644
__vsyscall_0 = VSYSCALL_VIRT_ADDR;
. = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
-@@ -132,7 +138,7 @@ #undef VVIRT
+@@ -132,7 +131,7 @@ #undef VVIRT
. = ALIGN(8192); /* init_task */
.data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
*(.data.init_task)
@@ -51,7 +59,22 @@ index 7c4de31..ef418b3 100644
. = ALIGN(4096);
.data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-@@ -235,4 +241,6 @@ #endif
+@@ -222,6 +221,14 @@ SECTIONS
+ . = ALIGN(4096);
+ __nosave_end = .;
+
++ __bss_start = .; /* BSS */
++ . = ALIGN(4096);
++ .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
++ *(.bss.page_aligned)
++ *(.bss)
++ }
++ __bss_stop = .;
++
+ _end = . ;
+
+ /* Sections to be discarded */
+@@ -235,4 +242,6 @@ #endif
STABS_DEBUG
DWARF_DEBUG
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