kernel-ark/arch/um/kernel/uml.lds.S
Tejun Heo 405d967dc7 linker script: throw away .discard section
x86 throws away .discard section but no other archs do.  Also,
.discard is not thrown away while linking modules.  Make every arch
and module linking throw it away.  This will be used to define dummy
variables for percpu declarations and definitions.

This patch is based on Ivan Kokshaysky's alpha percpu patch.

[ Impact: always throw away everything in .discard ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
2009-06-24 15:13:38 +09:00

106 lines
2.1 KiB
ArmAsm

#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
OUTPUT_FORMAT(ELF_FORMAT)
OUTPUT_ARCH(ELF_ARCH)
ENTRY(_start)
jiffies = jiffies_64;
SECTIONS
{
/* This must contain the right address - not quite the default ELF one.*/
PROVIDE (__executable_start = START);
/* Static binaries stick stuff here, like the sigreturn trampoline,
* invisibly to objdump. So, just make __binary_start equal to the very
* beginning of the executable, and if there are unmapped pages after this,
* they are forever unusable.
*/
__binary_start = START;
. = START + SIZEOF_HEADERS;
_text = .;
_stext = .;
__init_begin = .;
.init.text : {
_sinittext = .;
INIT_TEXT
_einittext = .;
}
. = ALIGN(PAGE_SIZE);
.text :
{
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.fixup)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
}
. = ALIGN(PAGE_SIZE);
.syscall_stub : {
__syscall_stub_start = .;
*(.__syscall_stub*)
__syscall_stub_end = .;
}
#include "asm/common.lds.S"
init.data : { INIT_DATA }
.data :
{
. = ALIGN(KERNEL_STACK_SIZE); /* init_task */
*(.data.init_task)
. = ALIGN(KERNEL_STACK_SIZE);
*(.data.init_irqstack)
DATA_DATA
*(.gnu.linkonce.d*)
CONSTRUCTORS
}
.data1 : { *(.data1) }
.ctors :
{
*(.ctors)
}
.dtors :
{
*(.dtors)
}
.got : { *(.got.plt) *(.got) }
.dynamic : { *(.dynamic) }
.tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
.sdata : { *(.sdata) }
_edata = .;
PROVIDE (edata = .);
. = ALIGN(PAGE_SIZE);
.sbss :
{
__bss_start = .;
PROVIDE(_bss_start = .);
*(.sbss)
*(.scommon)
}
.bss :
{
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = .;
PROVIDE (end = .);
STABS_DEBUG
DWARF_DEBUG
/DISCARD/ : { *(.discard) }
}