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4cd9d6f774
linux/arch/arm/kernel
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Richard Purdie 4cd9d6f774 [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 
Currently, the atags used by kexec are fixed to the ones originally used
to boot the kernel. This is less than ideal as changing the commandline,
initrd and other options would be a useful feature.

This patch exports the atags used for the current kernel to userspace
through an "atags" file in procfs. The presence of the file is
controlled by its own Kconfig option and cleans up several ifdef blocks
into a separate file. The tags for the new kernel are assumed to be at
a fixed location before the kernel image itself. The location of the
tags used to boot the original kernel is unimportant and no longer
saved.

Based on a patch from Uli Luckas <u.luckas@road.de>

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Uli Luckas <u.luckas@road.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:21:03 +00:00
..
armksyms.c [ARM] use __used attribute 2007-05-30 13:15:06 +01:00
arthur.c [PATCH] fix missing includes 2005-10-30 17:37:32 -08:00
asm-offsets.c [ARM] ARMv6: add CPU_HAS_ASID configuration 2007-05-17 10:19:23 +01:00
atags.c [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
atags.h [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
bios32.c [ARM] 4577/1: ITE 8152 PCI bridge support 2007-10-15 18:53:59 +01:00
calls.S [ARM] Add fallocate syscall entry 2007-10-12 23:43:31 +01:00
compat.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
compat.h [ARM] 3365/1: [cleanup] header for compat.c exported functions 2006-03-15 23:17:30 +00:00
crunch-bits.S [ARM] 3370/2: ep93xx: add crunch support 2006-06-28 17:55:01 +01:00
crunch.c [ARM] 4121/1: ep93xx: move setting of HWCAP_CRUNCH 2007-02-08 14:48:13 +00:00
debug.S [ARM] 3838/1: ARM: DCC debug console support for ARM11 2006-09-25 10:36:09 +01:00
dma-isa.c [ARM] ARRAY_SIZE() cleanup 2008-01-26 14:49:57 +00:00
dma.c [ARM] Export dma_channel_active() 2007-03-31 21:36:53 +01:00
ecard.c [ARM] ecard: add ecardm_iomap() / ecardm_iounmap() 2007-05-11 17:19:02 +01:00
ecard.h [ARM] ecard: Move private ecard junk out of asm/ecard.h 2007-05-03 14:16:56 +01:00
entry-armv.S Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel 2008-01-28 13:21:21 +00:00
entry-common.S [ARM] 4687/1: Trivial arch/arm/kernel/entry-common.S comment fix 2008-01-26 14:50:04 +00:00
entry-header.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fiq.c [ARM] 3692/1: ARM: coswitch irq handling to the generic implementation 2006-07-01 22:30:09 +01:00
head-common.S [ARM] 4423/1: add ATAGS support 2007-07-12 11:13:33 +01:00
head-nommu.S [ARM] Ensure head text is always placed at the start of kernel 2007-05-08 15:15:45 +01:00
head.S [ARM] 4423/1: add ATAGS support 2007-07-12 11:13:33 +01:00
init_task.c [ARM] Shut up warning about init_thread_union 2007-05-08 12:39:37 +01:00
io.c
irq.c [ARM] Remove needless linux/ptrace.h includes 2007-04-21 20:34:47 +01:00
isa.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
iwmmxt.S [ARM] 3707/1: iwmmxt: use the generic thread notifier infrastructure 2006-07-01 19:56:48 +01:00
kprobes-decode.c ARM kprobes: instruction single-stepping support 2008-01-26 15:25:16 +00:00
kprobes.c ARM kprobes: special hook for the kprobes breakpoint handler 2008-01-26 15:25:17 +00:00
machine_kexec.c [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
Makefile [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
module.c [ARM] Fix ARM branch relocation range 2007-05-08 22:05:25 +01:00
process.c Use helpers to obtain task pid in printks (arch code) 2007-10-19 11:53:43 -07:00
ptrace.c Use helpers to obtain task pid in printks (arch code) 2007-10-19 11:53:43 -07:00
ptrace.h [ARM] ptrace: clean up single stepping support 2007-04-21 20:34:58 +01:00
relocate_kernel.S [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
semaphore.c [ARM] 3103/1: ARM EABI: stack pointer must be 64-bit aligned (part 2) 2006-01-14 16:18:09 +00:00
setup.c [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags 2008-02-04 13:21:03 +00:00
signal.c [ARM] ptrace: clean up single stepping support 2007-04-21 20:34:58 +01:00
signal.h [ARM] nommu: fixups for the exception vectors 2006-03-27 15:18:50 +01:00
smp.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
stacktrace.c [ARM] Fix stacktrace FP range checking 2007-05-30 13:15:12 +01:00
stacktrace.h [ARM] Add stacktrace support and make oprofile use it 2007-04-28 09:59:37 +01:00
sys_arm.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sys_oabi-compat.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
time.c [ARM] Fix timer damage from d3d74453c3 2008-01-28 10:17:12 +00:00
traps.c ARM kprobes: special hook for the kprobes breakpoint handler 2008-01-26 15:25:17 +00:00
vmlinux.lds.S all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
xscale-cp0.c [ARM] 3881/4: xscale: clean up cp0/cp1 handling 2006-12-03 17:52:22 +00:00