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提交 99eb8a55 编写于 作者: A Adrian Bunk 提交者： Linus Torvalds
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Remove the arm26 port 

The arm26 port has been in a state where it was far from even compiling
for quite some time.

Ian Molton agreed with the removal.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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MAINTAINERS
浏览文件 @ 99eb8a55
......@@ -387,21 +387,6 @@ P: Jaya Kumar
M: jayalk@intworks.biz
S: Maintained
ARM26 ARCHITECTURE
P: Ian Molton
M: spyro@f2s.com
S: Maintained
ARM26/ARCHIMEDES
P: Ian Molton
M: spyro@f2s.com
S: Maintained
ARM26/A5000
P: John Appleby
M: john@dnsworld.co.uk
S: Maintained
ARM MFM AND FLOPPY DRIVERS
P: Ian Molton
M: spyro@f2s.com
......
arch/arm/nwfpe/Makefile
浏览文件 @ 99eb8a55
......@@ -9,5 +9,4 @@ nwfpe-y += fpa11.o fpa11_cpdo.o fpa11_cpdt.o \
softfloat.o single_cpdo.o double_cpdo.o
nwfpe-$(CONFIG_FPE_NWFPE_XP) += extended_cpdo.o
nwfpe-$(CONFIG_CPU_26) += entry26.o
nwfpe-$(CONFIG_CPU_32) += entry.o
arch/arm/nwfpe/entry26.S 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
NetWinder Floating Point Emulator
(c) Rebel.COM, 1998
(c) Philip Blundell 1998-1999
Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <asm/asm-offsets.h>
/* This is the kernel's entry point into the floating point emulator.
It is called from the kernel with code similar to this:
mov fp, #0
teqp pc, #PSR_I_BIT | SVC_MODE
ldr r4, .LC2
ldr pc, [r4] @ Call FP module USR entry point
The kernel expects the emulator to return via one of two possible
points of return it passes to the emulator. The emulator, if
successful in its emulation, jumps to ret_from_exception and the
kernel takes care of returning control from the trap to the user code.
If the emulator is unable to emulate the instruction, it returns to
fpundefinstr and the kernel halts the user program with a core dump.
This routine does four things:
1) It saves SP into a variable called userRegisters. The kernel has
created a struct pt_regs on the stack and saved the user registers
into it. See /usr/include/asm/proc/ptrace.h for details. The
emulator code uses userRegisters as the base of an array of words from
which the contents of the registers can be extracted.
2) It locates the FP emulator work area within the TSS structure and
points `fpa11' to it.
3) It calls EmulateAll to emulate a floating point instruction.
EmulateAll returns 1 if the emulation was successful, or 0 if not.
4) If an instruction has been emulated successfully, it looks ahead at
the next instruction. If it is a floating point instruction, it
executes the instruction, without returning to user space. In this
way it repeatedly looks ahead and executes floating point instructions
until it encounters a non floating point instruction, at which time it
returns via _fpreturn.
This is done to reduce the effect of the trap overhead on each
floating point instructions. GCC attempts to group floating point
instructions to allow the emulator to spread the cost of the trap over
several floating point instructions. */
.globl nwfpe_enter
nwfpe_enter:
mov sl, sp
ldr r5, [sp, #60] @ get contents of PC
bic r5, r5, #0xfc000003
ldr r0, [r5, #-4] @ get actual instruction into r0
bl EmulateAll @ emulate the instruction
1: cmp r0, #0 @ was emulation successful
beq fpundefinstr @ no, return failure
next:
.Lx1: ldrt r6, [r5], #4 @ get the next instruction and
@ increment PC
and r2, r6, #0x0F000000 @ test for FP insns
teq r2, #0x0C000000
teqne r2, #0x0D000000
teqne r2, #0x0E000000
bne ret_from_exception @ return ok if not a fp insn
ldr r9, [sp, #60] @ get new condition codes
and r9, r9, #0xfc000003
orr r7, r5, r9
str r7, [sp, #60] @ update PC copy in regs
mov r0, r6 @ save a copy
mov r1, r9 @ fetch the condition codes
bl checkCondition @ check the condition
cmp r0, #0 @ r0 = 0 ==> condition failed
@ if condition code failed to match, next insn
beq next @ get the next instruction;
mov r0, r6 @ prepare for EmulateAll()
adr lr, 1b
orr lr, lr, #3
b EmulateAll @ if r0 != 0, goto EmulateAll
.Lret: b ret_from_exception @ let the user eat segfaults
@ We need to be prepared for the instruction at .Lx1 to fault.
@ Emit the appropriate exception gunk to fix things up.
.section __ex_table,"a"
.align 3
.long .Lx1
ldr lr, [lr, $(.Lret - .Lx1)/4]
.previous
arch/arm26/ACKNOWLEDGEMENTS 已删除 100644 → 0
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The work in this architecture (ARM26) is that of a great many people.
This is what has happened:
I [Ian Molton] have been trying to repair the ARM26 architecture support, but it has become an impossible task whilst it is still merged with the ARM32 (arch/arm) code. The ARM26 code is too different to be sensible to keep with the ARM32 code now, and Russell King really doesnt have the time to maintain the ARM26 code. Add to that that most ARM32 developers dont know about or care about ARM26 when writing patches, and you have a reall mess.
As a result, I've split it off into a new architecture of its own. I've named it arm26 since these CPUs have only a 26 bit address space, unlike the other ARMs.
The upheaval in moving around so many source files and chopping out vasty ammounts of cruft was enormous, and the copyright of many files is sometimes unclear. Because of this, I am writing this, in order that no-one is left out / misaccredited / blamed for any of the code.
People I KNOW have made major contributions to the code:
David Alan Gilbert (former maintainer of ARM26 bits)
Philip Blundell
Russell King
Keith Owens
also thanks to Nicholas Pitre for hints, and for the basis or our XIP support.
Currently maintaing the code are
Ian Molton (Maintainer / Archimedes)
John Appleby (kernel / A5K)
If anyone has a problem with attributions in header files / source files, please do contact me to straighten things out.
Ian Molton (aka spyro) - ARM26 maintainer
spyro@f2s.com
arch/arm26/Kconfig 已删除 100644 → 0
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#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux Kernel Configuration"
config ARM
bool
default y
config ARM26
bool
default y
config MMU
bool
default y
config NO_DMA
def_bool y
config ARCH_ACORN
bool
default y
config CPU_26
bool
default y
config FIQ
bool
default y
# 9 = 512 pages 8 = 256 pages 7 = 128 pages
config FORCE_MAX_ZONEORDER
int
default 9
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
config ARCH_HAS_ILOG2_U32
bool
default n
config ARCH_HAS_ILOG2_U64
bool
default n
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config ZONE_DMA
bool
default y
config GENERIC_ISA_DMA
bool
config ARCH_MAY_HAVE_PC_FDC
bool
source "init/Kconfig"
menu "System Type"
choice
prompt "Archimedes/A5000 Implementations"
config ARCH_ARC
bool "Archimedes"
help
Say Y to support the Acorn Archimedes.
The Acorn Archimedes was an personal computer based on an 8MHz ARM2
processor, released in 1987. It supported up to 16MB of RAM in
later models and floppy, harddisc, ethernet etc.
config ARCH_A5K
bool "A5000"
select ARCH_MAY_HAVE_PC_FDC
help
Say Y here to support the Acorn A5000.
Linux can support the
internal IDE disk and CD-ROM interface, serial and parallel port,
and the floppy drive. Note that on some A5000s the floppy is
plugged into the wrong socket on the motherboard.
config PAGESIZE_16
bool "2MB physical memory (broken)"
help
Say Y here if your Archimedes or A5000 system has only 2MB of
memory, otherwise say N. The resulting kernel will not run on a
machine with 4MB of memory.
endchoice
endmenu
config ISA_DMA_API
bool
default y
menu "General setup"
# Compressed boot loader in ROM. Yes, we really want to ask about
# TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM
bool "Compressed boot loader in ROM/flash"
help
Say Y here if you intend to execute your compressed kernel image (zImage)
directly from ROM or flash. If unsure, say N.
config ZBOOT_ROM_TEXT
depends on ZBOOT_ROM
hex "Compressed ROM boot loader base address"
default "0"
help
The base address for zImage. Unless you have special requirements, you
should not change this value.
config ZBOOT_ROM_BSS
depends on ZBOOT_ROM
hex "Compressed ROM boot loader BSS address"
default "0"
help
The base address of 64KiB of read/write memory, which must be available
while the decompressor is running. Unless you have special requirements,
you should not change this value.
config XIP_KERNEL
bool "Execute In Place (XIP) kernel image"
help
Select this option to create a kernel that can be programmed into
the OS ROMs.
comment "At least one math emulation must be selected"
config FPE_NWFPE
tristate "NWFPE math emulation"
---help---
Say Y to include the NWFPE floating point emulator in the kernel.
This is necessary to run most binaries. Linux does not currently
support floating point hardware so you need to say Y here even if
your machine has an FPA or floating point co-processor module.
It is also possible to say M to build the emulator as a module
(nwfpe) or indeed to leave it out altogether. However, unless you
know what you are doing this can easily render your machine
unbootable. Saying Y is the safe option.
You may say N here if you are going to load the Acorn FPEmulator
early in the bootup.
source "fs/Kconfig.binfmt"
config PREEMPT
bool "Preemptible Kernel (EXPERIMENTAL)"
depends on CPU_32 && EXPERIMENTAL
help
This option reduces the latency of the kernel when reacting to
real-time or interactive events by allowing a low priority process to
be preempted even if it is in kernel mode executing a system call.
This allows applications to run more reliably even when the system is
under load.
Say Y here if you are building a kernel for a desktop, embedded
or real-time system. Say N if you are unsure.
config ARTHUR
tristate "RISC OS personality"
depends on CPU_32
help
Say Y here to include the kernel code necessary if you want to run
Acorn RISC OS/Arthur binaries under Linux. This code is still very
experimental; if this sounds frightening, say N and sleep in peace.
You can also say M here to compile this support as a module (which
will be called arthur).
config CMDLINE
string "Default kernel command string"
default ""
help
On some architectures (EBSA110 and CATS), there is currently no way
for the boot loader to pass arguments to the kernel. For these
architectures, you should supply some command-line options at build
time by entering them here. As a minimum, you should specify the
memory size and the root device (e.g., mem=64M root=/dev/nfs).
source "mm/Kconfig"
endmenu
source "net/Kconfig"
source "drivers/base/Kconfig"
source "drivers/parport/Kconfig"
source "drivers/pnp/Kconfig"
source "drivers/block/Kconfig"
source "drivers/md/Kconfig"
source "drivers/net/Kconfig"
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
source "drivers/isdn/Kconfig"
#
# input before char - char/joystick depends on it. As does USB.
#
source "drivers/input/Kconfig"
source "drivers/char/Kconfig"
source "drivers/media/Kconfig"
source "fs/Kconfig"
source "drivers/video/Kconfig"
if ARCH_ACORN
source "sound/Kconfig"
endif
source "drivers/misc/Kconfig"
source "drivers/usb/Kconfig"
source "arch/arm26/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/arm26/Kconfig.debug 已删除 100644 → 0
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menu "Kernel hacking"
source "lib/Kconfig.debug"
# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
# n, but then RMK will have to kill you ;).
config FRAME_POINTER
bool
default y
help
If you say N here, the resulting kernel will be slightly smaller and
faster. However, when a problem occurs with the kernel, the
information that is reported is severely limited. Most people
should say Y here.
config DEBUG_USER
bool "Verbose user fault messages"
help
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
config DEBUG_WAITQ
bool "Wait queue debugging"
depends on DEBUG_KERNEL
config DEBUG_ERRORS
bool "Verbose kernel error messages"
depends on DEBUG_KERNEL
help
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printchar, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
endmenu
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#
# arch/arm26/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995-2001 by Russell King
# Copyright (c) 2004 Ian Molton
LDFLAGS_vmlinux :=-p -X
CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
GZFLAGS :=-9
ifeq ($(CONFIG_FRAME_POINTER),y)
CFLAGS +=-fno-omit-frame-pointer -mno-sched-prolog
endif
CFLAGS_BOOT :=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm
CFLAGS +=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm
AFLAGS +=-mapcs-26 -mcpu=arm3 -msoft-float
ifeq ($(CONFIG_XIP_KERNEL),y)
TEXTADDR := 0x03880000
DATAADDR := 0x02080000
else
TEXTADDR := 0x02080000
DATAADDR := .
endif
head-y := arch/arm26/kernel/head.o arch/arm26/kernel/init_task.o
ifeq ($(incdir-y),)
incdir-y :=
endif
INCDIR :=
export MACHINE TEXTADDR GZFLAGS CFLAGS_BOOT
# If we have a machine-specific directory, then include it in the build.
core-y += arch/arm26/kernel/ arch/arm26/mm/ arch/arm26/machine/
core-$(CONFIG_FPE_NWFPE) += arch/arm26/nwfpe/
libs-y += arch/arm26/lib/
# Default target when executing plain make
all: zImage
boot := arch/arm26/boot
PHONY += maketools FORCE
maketools: FORCE
# Convert bzImage to zImage
bzImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/zImage
zImage Image bootpImage xipImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
zinstall install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
# My testing targets (that short circuit a few dependencies)
zImg:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/zImage
Img:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/Image
bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/bootpImage
i:; $(Q)$(MAKE) $(build)=$(boot) install
zi:; $(Q)$(MAKE) $(build)=$(boot) zinstall
#
# Configuration targets. Use these to select a
# configuration for your architecture
%_config:
@( \
CFG=$(@:_config=); \
if [ -f arch/arm26/def-configs/$$CFG ]; then \
[ -f .config ] && mv -f .config .config.old; \
cp arch/arm26/def-configs/$$CFG .config; \
echo "*** Default configuration for $$CFG installed"; \
echo "*** Next, you may run 'make oldconfig'"; \
else \
echo "$$CFG does not exist"; \
fi; \
)
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo ' bootpImage - Combined zImage and initial RAM disk'
echo ' xipImage - eXecute In Place capable image for ROM use (arch/$(ARCH)/boot/xipImage)'
echo ' initrd - Create an initial image'
echo ' install - Install uncompressed kernel'
echo ' zinstall - Install compressed kernel'
echo ' Install using (your) ~/bin/installkernel or'
echo ' (distribution) /sbin/installkernel or'
echo ' install to $$(INSTALL_PATH) and run lilo'
endef
arch/arm26/boot/Makefile 已删除 100644 → 0
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#
# arch/arm26/boot/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995-2002 Russell King
#
# Note: the following conditions must always be true:
# ZRELADDR == virt_to_phys(TEXTADDR)
# PARAMS_PHYS must be with 4MB of ZRELADDR
# INITRD_PHYS must be in RAM
zreladdr-y := 0x02080000
params_phys-y := 0x0207c000
initrd_phys-y := 0x02180000
ZRELADDR := 0x02080000
ZTEXTADDR := 0x0207c000
PARAMS_PHYS := $(params_phys-y)
INITRD_PHYS := 0x02180000
# We now have a PIC decompressor implementation. Decompressors running
# from RAM should not define ZTEXTADDR. Decompressors running directly
# from ROM or Flash must define ZTEXTADDR (preferably via the config)
# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
ifeq ($(CONFIG_ZBOOT_ROM),y)
ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
else
ZTEXTADDR := 0
ZBSSADDR := ALIGN(4)
endif
export ZTEXTADDR ZBSSADDR ZRELADDR INITRD_PHYS PARAMS_PHYS
targets := Image zImage bootpImage xipImage
$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
@echo ' Kernel: $@ is ready'
$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
@echo ' Kernel: $@ is ready'
$(obj)/compressed/vmlinux: vmlinux FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
ifeq ($(CONFIG_XIP_KERNEL),y)
$(obj)/xipImage: vmlinux FORCE
# $(OBJCOPY) -S -O binary -R .data -R .comment vmlinux vmlinux-text.bin
# FIXME - where has .pci_fixup crept in from?
$(OBJCOPY) -S -O binary -R .data -R .pci_fixup -R .comment vmlinux vmlinux-text.bin
$(OBJCOPY) -S -O binary -R .init -R .text -R __ex_table -R .pci_fixup -R __ksymtab -R __ksymtab_gpl -R __kcrctab -R __kcrctab_gpl -R __param -R .comment vmlinux vmlinux-data.bin
cat vmlinux-text.bin vmlinux-data.bin > $@
$(RM) -f vmlinux-text.bin vmlinux-data.bin
@echo ' Kernel: $@ is ready'
endif
PHONY += initrd
initrd:
@test "$(INITRD_PHYS)" != "" || \
(echo This machine does not support INITRD; exit -1)
@test "$(INITRD)" != "" || \
(echo You must specify INITRD; exit -1)
install: $(obj)/Image
$(CONFIG_SHELL) $(obj)/install.sh \
$(KERNELRELEASE) \
$(obj)/Image System.map "$(INSTALL_PATH)"
zinstall: $(obj)/zImage
$(CONFIG_SHELL) $(obj)/install.sh \
$(KERNELRELEASE) \
$(obj)/zImage System.map "$(INSTALL_PATH)"
subdir- := compressed
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#
# linux/arch/arm26/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#
# Note! ZTEXTADDR, ZBSSADDR and ZRELADDR are now exported
# from arch/arm26/boot/Makefile
#
HEAD = head.o
OBJS = misc.o
FONTC = drivers/video/console/font_acorn_8x8.c
OBJS += ll_char_wr.o font.o
CFLAGS_misc.o := -DPARAMS_PHYS=$(PARAMS_PHYS)
targets := vmlinux vmlinux.lds piggy piggy.gz piggy.o font.o head.o $(OBJS)
SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/LOAD_ADDR/$(ZRELADDR)/;s/BSS_START/$(ZBSSADDR)/
EXTRA_CFLAGS := $(CFLAGS_BOOT) -fpic
EXTRA_AFLAGS := -traditional
LDFLAGS_vmlinux := -p -X \
$(shell $(CC) $(CFLAGS)) -T
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
$(addprefix $(obj)/, $(OBJS)) FORCE
$(call if_changed,ld)
@:
$(obj)/piggy: vmlinux FORCE
$(call if_changed,objcopy)
$(obj)/piggy.gz: $(obj)/piggy FORCE
$(call if_changed,gzip)
LDFLAGS_piggy.o := -r -b binary
$(obj)/piggy.o: $(obj)/piggy.gz FORCE
$(call if_changed,ld)
$(obj)/font.o: $(FONTC)
$(CC) $(CFLAGS) -Dstatic= -c $(FONTC) -o $(obj)/font.o
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in Makefile arch/arm26/boot/Makefile .config
@sed "$(SEDFLAGS)" < $< > $@
$(obj)/misc.o: $(obj)/misc.c $(obj)/uncompress.h lib/inflate.c
arch/arm26/boot/compressed/head.S 已删除 100644 → 0
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/*
* linux/arch/arm26/boot/compressed/head.S
*
* Copyright (C) 1996-2002 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
/*
* Debugging stuff
*
* Note that these macros must not contain any code which is not
* 100% relocatable. Any attempt to do so will result in a crash.
* Please select one of the following when turning on debugging.
*/
.macro kputc,val
mov r0, \val
bl putc
.endm
.macro kphex,val,len
mov r0, \val
mov r1, #\len
bl phex
.endm
.macro debug_reloc_start
.endm
.macro debug_reloc_end
.endm
.section ".start", #alloc, #execinstr
/*
* sort out different calling conventions
*/
.align
start:
.type start,#function
.rept 8
mov r0, r0
.endr
b 1f
.word 0x016f2818 @ Magic numbers to help the loader
.word start @ absolute load/run zImage address
.word _edata @ zImage end address
1: mov r7, r1 @ save architecture ID
mov r8, #0 @ save r0
teqp pc, #0x0c000003 @ turn off interrupts
.text
adr r0, LC0
ldmia r0, {r1, r2, r3, r4, r5, r6, ip, sp}
subs r0, r0, r1 @ calculate the delta offset
teq r0, #0 @ if delta is zero, we're
beq not_relocated @ running at the address we
@ were linked at.
add r2, r2, r0 @ different address, so we
add r3, r3, r0 @ need to fix up various
add r5, r5, r0 @ pointers.
add r6, r6, r0
add ip, ip, r0
add sp, sp, r0
1: ldr r1, [r6, #0] @ relocate entries in the GOT
add r1, r1, r0 @ table. This fixes up the
str r1, [r6], #4 @ C references.
cmp r6, ip
blo 1b
not_relocated: mov r0, #0
1: str r0, [r2], #4 @ clear bss
str r0, [r2], #4
str r0, [r2], #4
str r0, [r2], #4
cmp r2, r3
blo 1b
bl cache_on
mov r1, sp @ malloc space above stack
add r2, sp, #0x10000 @ 64k max
/*
* Check to see if we will overwrite ourselves.
* r4 = final kernel address
* r5 = start of this image
* r2 = end of malloc space (and therefore this image)
* We basically want:
* r4 >= r2 -> OK
* r4 + image length <= r5 -> OK
*/
cmp r4, r2
bhs wont_overwrite
add r0, r4, #4096*1024 @ 4MB largest kernel size
cmp r0, r5
bls wont_overwrite
mov r5, r2 @ decompress after malloc space
mov r0, r5
mov r3, r7
bl decompress_kernel
add r0, r0, #127
bic r0, r0, #127 @ align the kernel length
/*
* r0 = decompressed kernel length
* r1-r3 = unused
* r4 = kernel execution address
* r5 = decompressed kernel start
* r6 = processor ID
* r7 = architecture ID
* r8-r14 = unused
*/
add r1, r5, r0 @ end of decompressed kernel
adr r2, reloc_start
ldr r3, LC1
add r3, r2, r3
1: ldmia r2!, {r8 - r13} @ copy relocation code
stmia r1!, {r8 - r13}
ldmia r2!, {r8 - r13}
stmia r1!, {r8 - r13}
cmp r2, r3
blo 1b
bl cache_clean_flush
add pc, r5, r0 @ call relocation code
/*
* We're not in danger of overwriting ourselves. Do this the simple way.
*
* r4 = kernel execution address
* r7 = architecture ID
*/
wont_overwrite: mov r0, r4
mov r3, r7
bl decompress_kernel
b call_kernel
.type LC0, #object
LC0: .word LC0 @ r1
.word __bss_start @ r2
.word _end @ r3
.word _load_addr @ r4
.word _start @ r5
.word _got_start @ r6
.word _got_end @ ip
.word user_stack+4096 @ sp
LC1: .word reloc_end - reloc_start
.size LC0, . - LC0
/*
* Turn on the cache. We need to setup some page tables so that we
* can have both the I and D caches on.
*
* We place the page tables 16k down from the kernel execution address,
* and we hope that nothing else is using it. If we're using it, we
* will go pop!
*
* On entry,
* r4 = kernel execution address
* r6 = processor ID
* r7 = architecture number
* r8 = run-time address of "start"
* On exit,
* r1, r2, r3, r8, r9, r12 corrupted
* This routine must preserve:
* r4, r5, r6, r7
*/
.align 5
cache_on: mov r3, #8 @ cache_on function
b call_cache_fn
__setup_mmu: sub r3, r4, #16384 @ Page directory size
bic r3, r3, #0xff @ Align the pointer
bic r3, r3, #0x3f00
/*
* Initialise the page tables, turning on the cacheable and bufferable
* bits for the RAM area only.
*/
mov r0, r3
mov r8, r0, lsr #18
mov r8, r8, lsl #18 @ start of RAM
add r9, r8, #0x10000000 @ a reasonable RAM size
mov r1, #0x12
orr r1, r1, #3 << 10
add r2, r3, #16384
1: cmp r1, r8 @ if virt > start of RAM
orrhs r1, r1, #0x0c @ set cacheable, bufferable
cmp r1, r9 @ if virt > end of RAM
bichs r1, r1, #0x0c @ clear cacheable, bufferable
str r1, [r0], #4 @ 1:1 mapping
add r1, r1, #1048576
teq r0, r2
bne 1b
/*
* If ever we are running from Flash, then we surely want the cache
* to be enabled also for our execution instance... We map 2MB of it
* so there is no map overlap problem for up to 1 MB compressed kernel.
* If the execution is in RAM then we would only be duplicating the above.
*/
mov r1, #0x1e
orr r1, r1, #3 << 10
mov r2, pc, lsr #20
orr r1, r1, r2, lsl #20
add r0, r3, r2, lsl #2
str r1, [r0], #4
add r1, r1, #1048576
str r1, [r0]
mov pc, lr
__armv4_cache_on:
mov r12, lr
bl __setup_mmu
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
mcr p15, 0, r0, c8, c7, 0 @ flush I,D TLBs
mrc p15, 0, r0, c1, c0, 0 @ read control reg
orr r0, r0, #0x1000 @ I-cache enable
orr r0, r0, #0x0030
b __common_cache_on
__arm6_cache_on:
mov r12, lr
bl __setup_mmu
mov r0, #0
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
mcr p15, 0, r0, c5, c0, 0 @ invalidate whole TLB v3
mov r0, #0x30
__common_cache_on:
#ifndef DEBUG
orr r0, r0, #0x000d @ Write buffer, mmu
#endif
mov r1, #-1
mcr p15, 0, r3, c2, c0, 0 @ load page table pointer
mcr p15, 0, r1, c3, c0, 0 @ load domain access control
mcr p15, 0, r0, c1, c0, 0 @ load control register
mov pc, r12
/*
* All code following this line is relocatable. It is relocated by
* the above code to the end of the decompressed kernel image and
* executed there. During this time, we have no stacks.
*
* r0 = decompressed kernel length
* r1-r3 = unused
* r4 = kernel execution address
* r5 = decompressed kernel start
* r6 = processor ID
* r7 = architecture ID
* r8-r14 = unused
*/
.align 5
reloc_start: add r8, r5, r0
debug_reloc_start
mov r1, r4
1:
.rept 4
ldmia r5!, {r0, r2, r3, r9 - r13} @ relocate kernel
stmia r1!, {r0, r2, r3, r9 - r13}
.endr
cmp r5, r8
blo 1b
debug_reloc_end
call_kernel: bl cache_clean_flush
bl cache_off
mov r0, #0
mov r1, r7 @ restore architecture number
mov pc, r4 @ call kernel
/*
* Here follow the relocatable cache support functions for the
* various processors. This is a generic hook for locating an
* entry and jumping to an instruction at the specified offset
* from the start of the block. Please note this is all position
* independent code.
*
* r1 = corrupted
* r2 = corrupted
* r3 = block offset
* r6 = corrupted
* r12 = corrupted
*/
call_cache_fn: adr r12, proc_types
mrc p15, 0, r6, c0, c0 @ get processor ID
1: ldr r1, [r12, #0] @ get value
ldr r2, [r12, #4] @ get mask
eor r1, r1, r6 @ (real ^ match)
tst r1, r2 @ & mask
addeq pc, r12, r3 @ call cache function
add r12, r12, #4*5
b 1b
/*
* Table for cache operations. This is basically:
* - CPU ID match
* - CPU ID mask
* - 'cache on' method instruction
* - 'cache off' method instruction
* - 'cache flush' method instruction
*
* We match an entry using: ((real_id ^ match) & mask) == 0
*
* Writethrough caches generally only need 'on' and 'off'
* methods. Writeback caches _must_ have the flush method
* defined.
*/
.type proc_types,#object
proc_types:
.word 0x41560600 @ ARM6/610
.word 0xffffffe0
b __arm6_cache_off @ works, but slow
b __arm6_cache_off
mov pc, lr
@ b __arm6_cache_on @ untested
@ b __arm6_cache_off
@ b __armv3_cache_flush
.word 0x41007000 @ ARM7/710
.word 0xfff8fe00
b __arm7_cache_off
b __arm7_cache_off
mov pc, lr
.word 0x41807200 @ ARM720T (writethrough)
.word 0xffffff00
b __armv4_cache_on
b __armv4_cache_off
mov pc, lr
.word 0x41129200 @ ARM920T
.word 0xff00fff0
b __armv4_cache_on
b __armv4_cache_off
b __armv4_cache_flush
.word 0x4401a100 @ sa110 / sa1100
.word 0xffffffe0
b __armv4_cache_on
b __armv4_cache_off
b __armv4_cache_flush
.word 0x6901b110 @ sa1110
.word 0xfffffff0
b __armv4_cache_on
b __armv4_cache_off
b __armv4_cache_flush
.word 0x69050000 @ xscale
.word 0xffff0000
b __armv4_cache_on
b __armv4_cache_off
b __armv4_cache_flush
.word 0 @ unrecognised type
.word 0
mov pc, lr
mov pc, lr
mov pc, lr
.size proc_types, . - proc_types
/*
* Turn off the Cache and MMU. ARMv3 does not support
* reading the control register, but ARMv4 does.
*
* On entry, r6 = processor ID
* On exit, r0, r1, r2, r3, r12 corrupted
* This routine must preserve: r4, r6, r7
*/
.align 5
cache_off: mov r3, #12 @ cache_off function
b call_cache_fn
__armv4_cache_off:
mrc p15, 0, r0, c1, c0
bic r0, r0, #0x000d
mcr p15, 0, r0, c1, c0 @ turn MMU and cache off
mov r0, #0
mcr p15, 0, r0, c7, c7 @ invalidate whole cache v4
mcr p15, 0, r0, c8, c7 @ invalidate whole TLB v4
mov pc, lr
__arm6_cache_off:
mov r0, #0x00000030 @ ARM6 control reg.
b __armv3_cache_off
__arm7_cache_off:
mov r0, #0x00000070 @ ARM7 control reg.
b __armv3_cache_off
__armv3_cache_off:
mcr p15, 0, r0, c1, c0, 0 @ turn MMU and cache off
mov r0, #0
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
mcr p15, 0, r0, c5, c0, 0 @ invalidate whole TLB v3
mov pc, lr
/*
* Clean and flush the cache to maintain consistency.
*
* On entry,
* r6 = processor ID
* On exit,
* r1, r2, r3, r12 corrupted
* This routine must preserve:
* r0, r4, r5, r6, r7
*/
.align 5
cache_clean_flush:
mov r3, #16
b call_cache_fn
__armv4_cache_flush:
bic r1, pc, #31
add r2, r1, #65536 @ 2x the largest dcache size
1: ldr r12, [r1], #32 @ s/w flush D cache
teq r1, r2
bne 1b
mcr p15, 0, r1, c7, c7, 0 @ flush I cache
mcr p15, 0, r1, c7, c10, 4 @ drain WB
mov pc, lr
__armv3_cache_flush:
mov r1, #0
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
mov pc, lr
/*
* Various debugging routines for printing hex characters and
* memory, which again must be relocatable.
*/
#ifdef DEBUG
.type phexbuf,#object
phexbuf: .space 12
.size phexbuf, . - phexbuf
phex: adr r3, phexbuf
mov r2, #0
strb r2, [r3, r1]
1: subs r1, r1, #1
movmi r0, r3
bmi puts
and r2, r0, #15
mov r0, r0, lsr #4
cmp r2, #10
addge r2, r2, #7
add r2, r2, #'0'
strb r2, [r3, r1]
b 1b
puts: loadsp r3
1: ldrb r2, [r0], #1
teq r2, #0
moveq pc, lr
2: writeb r2
mov r1, #0x00020000
3: subs r1, r1, #1
bne 3b
teq r2, #'\n'
moveq r2, #'\r'
beq 2b
teq r0, #0
bne 1b
mov pc, lr
putc:
mov r2, r0
mov r0, #0
loadsp r3
b 2b
memdump: mov r12, r0
mov r10, lr
mov r11, #0
2: mov r0, r11, lsl #2
add r0, r0, r12
mov r1, #8
bl phex
mov r0, #':'
bl putc
1: mov r0, #' '
bl putc
ldr r0, [r12, r11, lsl #2]
mov r1, #8
bl phex
and r0, r11, #7
teq r0, #3
moveq r0, #' '
bleq putc
and r0, r11, #7
add r11, r11, #1
teq r0, #7
bne 1b
mov r0, #'\n'
bl putc
cmp r11, #64
blt 2b
mov pc, r10
#endif
reloc_end:
.align
.section ".stack", "aw"
user_stack: .space 4096
arch/arm26/boot/compressed/ll_char_wr.S 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/lib/ll_char_wr.S
*
* Copyright (C) 1995, 1996 Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Speedups & 1bpp code (C) 1996 Philip Blundell & Russell King.
*
* 10-04-96 RMK Various cleanups & reduced register usage.
* 08-04-98 RMK Shifts re-ordered
*/
@ Regs: [] = corruptible
@ {} = used
@ () = do not use
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
#define BOLD 0x01
#define ITALIC 0x02
#define UNDERLINE 0x04
#define FLASH 0x08
#define INVERSE 0x10
LC0: .word bytes_per_char_h
.word video_size_row
.word acorndata_8x8
.word con_charconvtable
ENTRY(ll_write_char)
stmfd sp!, {r4 - r7, lr}
@
@ Smashable regs: {r0 - r3}, [r4 - r7], (r8 - fp), [ip], (sp), [lr], (pc)
@
eor ip, r1, #UNDERLINE << 9
/*
* calculate colours
*/
tst r1, #INVERSE << 9
moveq r2, r1, lsr #16
moveq r3, r1, lsr #24
movne r2, r1, lsr #24
movne r3, r1, lsr #16
and r3, r3, #255
and r2, r2, #255
/*
* calculate offset into character table
*/
mov r1, r1, lsl #23
mov r1, r1, lsr #20
/*
* calculate offset required for each row [maybe I should make this an argument to this fn.
* Have to see what the register usage is like in the calling routines.
*/
adr r4, LC0
ldmia r4, {r4, r5, r6, lr}
ldr r4, [r4]
ldr r5, [r5]
/*
* Go to resolution-dependent routine...
*/
cmp r4, #4
blt Lrow1bpp
eor r2, r3, r2 @ Create eor mask to change colour from bg
orr r3, r3, r3, lsl #8 @ to fg.
orr r3, r3, r3, lsl #16
add r0, r0, r5, lsl #3 @ Move to bottom of character
add r1, r1, #7
ldrb r7, [r6, r1]
tst ip, #UNDERLINE << 9
eoreq r7, r7, #255
teq r4, #8
beq Lrow8bpplp
@
@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc)
@
orr r3, r3, r3, lsl #4
Lrow4bpplp: ldr r7, [lr, r7, lsl #2]
mul r7, r2, r7
tst r1, #7 @ avoid using r7 directly after
eor ip, r3, r7
str ip, [r0, -r5]!
LOADREGS(eqfd, sp!, {r4 - r7, pc})
sub r1, r1, #1
ldrb r7, [r6, r1]
ldr r7, [lr, r7, lsl #2]
mul r7, r2, r7
tst r1, #7 @ avoid using r7 directly after
eor ip, r3, r7
str ip, [r0, -r5]!
subne r1, r1, #1
ldrneb r7, [r6, r1]
bne Lrow4bpplp
LOADREGS(fd, sp!, {r4 - r7, pc})
@
@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc)
@
Lrow8bpplp: mov ip, r7, lsr #4
ldr ip, [lr, ip, lsl #2]
mul r4, r2, ip
and ip, r7, #15 @ avoid r4
ldr ip, [lr, ip, lsl #2] @ avoid r4
mul ip, r2, ip @ avoid r4
eor r4, r3, r4 @ avoid ip
tst r1, #7 @ avoid ip
sub r0, r0, r5 @ avoid ip
eor ip, r3, ip
stmia r0, {r4, ip}
LOADREGS(eqfd, sp!, {r4 - r7, pc})
sub r1, r1, #1
ldrb r7, [r6, r1]
mov ip, r7, lsr #4
ldr ip, [lr, ip, lsl #2]
mul r4, r2, ip
and ip, r7, #15 @ avoid r4
ldr ip, [lr, ip, lsl #2] @ avoid r4
mul ip, r2, ip @ avoid r4
eor r4, r3, r4 @ avoid ip
tst r1, #7 @ avoid ip
sub r0, r0, r5 @ avoid ip
eor ip, r3, ip
stmia r0, {r4, ip}
subne r1, r1, #1
ldrneb r7, [r6, r1]
bne Lrow8bpplp
LOADREGS(fd, sp!, {r4 - r7, pc})
@
@ Smashable regs: {r0 - r3}, [r4], {r5, r6}, [r7], (r8 - fp), [ip], (sp), [lr], (pc)
@
Lrow1bpp: add r6, r6, r1
ldmia r6, {r4, r7}
tst ip, #INVERSE << 9
mvnne r4, r4
mvnne r7, r7
strb r4, [r0], r5
mov r4, r4, lsr #8
strb r4, [r0], r5
mov r4, r4, lsr #8
strb r4, [r0], r5
mov r4, r4, lsr #8
strb r4, [r0], r5
strb r7, [r0], r5
mov r7, r7, lsr #8
strb r7, [r0], r5
mov r7, r7, lsr #8
strb r7, [r0], r5
mov r7, r7, lsr #8
tst ip, #UNDERLINE << 9
mvneq r7, r7
strb r7, [r0], r5
LOADREGS(fd, sp!, {r4 - r7, pc})
.bss
ENTRY(con_charconvtable)
.space 1024
arch/arm26/boot/compressed/misc.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* misc.c
*
* This is a collection of several routines from gzip-1.0.3
* adapted for Linux.
*
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
*
* Modified for ARM Linux by Russell King
*
* Nicolas Pitre <nico@visuaide.com> 1999/04/14 :
* For this code to run directly from Flash, all constant variables must
* be marked with 'const' and all other variables initialized at run-time
* only. This way all non constant variables will end up in the bss segment,
* which should point to addresses in RAM and cleared to 0 on start.
* This allows for a much quicker boot time.
*/
unsigned int __machine_arch_type;
#include <linux/kernel.h>
#include <asm/uaccess.h>
#include "uncompress.h"
#ifdef STANDALONE_DEBUG
#define puts printf
#endif
#define __ptr_t void *
/*
* Optimised C version of memzero for the ARM.
*/
void __memzero (__ptr_t s, size_t n)
{
union { void *vp; unsigned long *ulp; unsigned char *ucp; } u;
int i;
u.vp = s;
for (i = n >> 5; i > 0; i--) {
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 4) {
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 3) {
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 2)
*u.ulp++ = 0;
if (n & 1 << 1) {
*u.ucp++ = 0;
*u.ucp++ = 0;
}
if (n & 1)
*u.ucp++ = 0;
}
static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
size_t __n)
{
int i = 0;
unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
for (i = __n >> 3; i > 0; i--) {
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
}
if (__n & 1 << 2) {
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
}
if (__n & 1 << 1) {
*d++ = *s++;
*d++ = *s++;
}
if (__n & 1)
*d++ = *s++;
return __dest;
}
/*
* gzip delarations
*/
#define OF(args) args
#define STATIC static
typedef unsigned char uch;
typedef unsigned short ush;
typedef unsigned long ulg;
#define WSIZE 0x8000 /* Window size must be at least 32k, */
/* and a power of two */
static uch *inbuf; /* input buffer */
static uch window[WSIZE]; /* Sliding window buffer */
static unsigned insize; /* valid bytes in inbuf */
static unsigned inptr; /* index of next byte to be processed in inbuf */
static unsigned outcnt; /* bytes in output buffer */
/* gzip flag byte */
#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
#define COMMENT 0x10 /* bit 4 set: file comment present */
#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
#define RESERVED 0xC0 /* bit 6,7: reserved */
#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
/* Diagnostic functions */
#ifdef DEBUG
# define Assert(cond,msg) {if(!(cond)) error(msg);}
# define Trace(x) fprintf x
# define Tracev(x) {if (verbose) fprintf x ;}
# define Tracevv(x) {if (verbose>1) fprintf x ;}
# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
# define Assert(cond,msg)
# define Trace(x)
# define Tracev(x)
# define Tracevv(x)
# define Tracec(c,x)
# define Tracecv(c,x)
#endif
static int fill_inbuf(void);
static void flush_window(void);
static void error(char *m);
static void gzip_mark(void **);
static void gzip_release(void **);
extern char input_data[];
extern char input_data_end[];
static uch *output_data;
static ulg output_ptr;
static ulg bytes_out;
static void *malloc(int size);
static void free(void *where);
static void error(char *m);
static void gzip_mark(void **);
static void gzip_release(void **);
static void puts(const char *);
extern int end;
static ulg free_mem_ptr;
static ulg free_mem_ptr_end;
#define HEAP_SIZE 0x3000
#include "../../../../lib/inflate.c"
#ifndef STANDALONE_DEBUG
static void *malloc(int size)
{
void *p;
if (size <0) error("Malloc error");
if (free_mem_ptr <= 0) error("Memory error");
free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
p = (void *)free_mem_ptr;
free_mem_ptr += size;
if (free_mem_ptr >= free_mem_ptr_end)
error("Out of memory");
return p;
}
static void free(void *where)
{ /* gzip_mark & gzip_release do the free */
}
static void gzip_mark(void **ptr)
{
arch_decomp_wdog();
*ptr = (void *) free_mem_ptr;
}
static void gzip_release(void **ptr)
{
arch_decomp_wdog();
free_mem_ptr = (long) *ptr;
}
#else
static void gzip_mark(void **ptr)
{
}
static void gzip_release(void **ptr)
{
}
#endif
/* ===========================================================================
* Fill the input buffer. This is called only when the buffer is empty
* and at least one byte is really needed.
*/
int fill_inbuf(void)
{
if (insize != 0)
error("ran out of input data");
inbuf = input_data;
insize = &input_data_end[0] - &input_data[0];
inptr = 1;
return inbuf[0];
}
/* ===========================================================================
* Write the output window window[0..outcnt-1] and update crc and bytes_out.
* (Used for the decompressed data only.)
*/
void flush_window(void)
{
ulg c = crc;
unsigned n;
uch *in, *out, ch;
in = window;
out = &output_data[output_ptr];
for (n = 0; n < outcnt; n++) {
ch = *out++ = *in++;
c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
}
crc = c;
bytes_out += (ulg)outcnt;
output_ptr += (ulg)outcnt;
outcnt = 0;
puts(".");
}
static void error(char *x)
{
int ptr;
puts("\n\n");
puts(x);
puts("\n\n -- System halted");
while(1); /* Halt */
}
#ifndef STANDALONE_DEBUG
ulg
decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
int arch_id)
{
output_data = (uch *)output_start; /* Points to kernel start */
free_mem_ptr = free_mem_ptr_p;
free_mem_ptr_end = free_mem_ptr_end_p;
__machine_arch_type = arch_id;
arch_decomp_setup();
makecrc();
puts("Uncompressing Linux...");
gunzip();
puts(" done, booting the kernel.\n");
return output_ptr;
}
#else
char output_buffer[1500*1024];
int main()
{
output_data = output_buffer;
makecrc();
puts("Uncompressing Linux...");
gunzip();
puts("done.\n");
return 0;
}
#endif
arch/arm26/boot/compressed/uncompress.h 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
*
* Copyright (C) 1996 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define VIDMEM ((char *)0x02000000)
int video_num_columns, video_num_lines, video_size_row;
int white, bytes_per_char_h;
extern unsigned long con_charconvtable[256];
struct param_struct {
unsigned long page_size;
unsigned long nr_pages;
unsigned long ramdisk_size;
unsigned long mountrootrdonly;
unsigned long rootdev;
unsigned long video_num_cols;
unsigned long video_num_rows;
unsigned long video_x;
unsigned long video_y;
unsigned long memc_control_reg;
unsigned char sounddefault;
unsigned char adfsdrives;
unsigned char bytes_per_char_h;
unsigned char bytes_per_char_v;
unsigned long unused[256/4-11];
};
static struct param_struct *params = (struct param_struct *)0x0207c000;
/*
* This does not append a newline
*/
static void puts(const char *s)
{
extern void ll_write_char(char *, unsigned long);
int x,y;
unsigned char c;
char *ptr;
x = params->video_x;
y = params->video_y;
while ( ( c = *(unsigned char *)s++ ) != '\0' ) {
if ( c == '\n' ) {
x = 0;
if ( ++y >= video_num_lines ) {
y--;
}
} else {
ptr = VIDMEM + ((y*video_num_columns*params->bytes_per_char_v+x)*bytes_per_char_h);
ll_write_char(ptr, c|(white<<16));
if ( ++x >= video_num_columns ) {
x = 0;
if ( ++y >= video_num_lines ) {
y--;
}
}
}
}
params->video_x = x;
params->video_y = y;
}
static void error(char *x);
/*
* Setup for decompression
*/
static void arch_decomp_setup(void)
{
int i;
video_num_lines = params->video_num_rows;
video_num_columns = params->video_num_cols;
bytes_per_char_h = params->bytes_per_char_h;
video_size_row = video_num_columns * bytes_per_char_h;
if (bytes_per_char_h == 4)
for (i = 0; i < 256; i++)
con_charconvtable[i] =
(i & 128 ? 1 << 0 : 0) |
(i & 64 ? 1 << 4 : 0) |
(i & 32 ? 1 << 8 : 0) |
(i & 16 ? 1 << 12 : 0) |
(i & 8 ? 1 << 16 : 0) |
(i & 4 ? 1 << 20 : 0) |
(i & 2 ? 1 << 24 : 0) |
(i & 1 ? 1 << 28 : 0);
else
for (i = 0; i < 16; i++)
con_charconvtable[i] =
(i & 8 ? 1 << 0 : 0) |
(i & 4 ? 1 << 8 : 0) |
(i & 2 ? 1 << 16 : 0) |
(i & 1 ? 1 << 24 : 0);
white = bytes_per_char_h == 8 ? 0xfc : 7;
if (params->nr_pages * params->page_size < 4096*1024) error("<4M of mem\n");
}
/*
* nothing to do
*/
#define arch_decomp_wdog()
arch/arm26/boot/compressed/vmlinux.lds.in 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/boot/compressed/vmlinux.lds.in
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
. = LOAD_ADDR;
_load_addr = .;
. = TEXT_START;
_text = .;
.text : {
_start = .;
*(.start)
*(.text)
*(.fixup)
*(.gnu.warning)
*(.rodata)
*(.rodata.*)
*(.glue_7)
*(.glue_7t)
input_data = .;
arch/arm26/boot/compressed/piggy.o
input_data_end = .;
. = ALIGN(4);
}
_etext = .;
_got_start = .;
.got : { *(.got) }
_got_end = .;
.got.plt : { *(.got.plt) }
.data : { *(.data) }
_edata = .;
. = BSS_START;
__bss_start = .;
.bss : { *(.bss) }
_end = .;
.stack (NOLOAD) : { *(.stack) }
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
arch/arm26/boot/install.sh 已删除 100644 → 0
浏览文件 @ 0d0ed42e
#!/bin/sh
#
# arch/arm26/boot/install.sh
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995 by Linus Torvalds
#
# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
# Adapted from code in arch/i386/boot/install.sh by Russell King
# Stolen from arm32 by Ian Molton
#
# "make install" script for arm architecture
#
# Arguments:
# $1 - kernel version
# $2 - kernel image file
# $3 - kernel map file
# $4 - default install path (blank if root directory)
#
# User may have a custom install script
if [ -x /sbin/${CROSS_COMPILE}installkernel ]; then
exec /sbin/${CROSS_COMPILE}installkernel "$@"
fi
if [ "$2" = "zImage" ]; then
# Compressed install
echo "Installing compressed kernel"
if [ -f $4/vmlinuz-$1 ]; then
mv $4/vmlinuz-$1 $4/vmlinuz.old
fi
if [ -f $4/System.map-$1 ]; then
mv $4/System.map-$1 $4/System.old
fi
cat $2 > $4/vmlinuz-$1
cp $3 $4/System.map-$1
else
# Normal install
echo "Installing normal kernel"
if [ -f $4/vmlinux-$1 ]; then
mv $4/vmlinux-$1 $4/vmlinux.old
fi
if [ -f $4/System.map ]; then
mv $4/System.map $4/System.old
fi
cat $2 > $4/vmlinux-$1
cp $3 $4/System.map
fi
if [ -x /sbin/loadmap ]; then
/sbin/loadmap --rdev /dev/ima
else
echo "You have to install it yourself"
fi
arch/arm26/defconfig 已删除 100644 → 0
浏览文件 @ 0d0ed42e
#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_ARM=y
# CONFIG_EISA is not set
# CONFIG_SBUS is not set
# CONFIG_MCA is not set
CONFIG_UID16=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
# CONFIG_GENERIC_BUST_SPINLOCK is not set
# CONFIG_GENERIC_ISA_DMA is not set
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
#
# General setup
#
# CONFIG_NET is not set
# CONFIG_SYSVIPC is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
#
# Loadable module support
#
# CONFIG_MODULES is not set
#
# System Type
#
CONFIG_ARCH_ARC=y
# CONFIG_ARCH_A5K is not set
CONFIG_ARCH_ACORN=y
# CONFIG_CPU_32 is not set
CONFIG_CPU_26=y
# CONFIG_PAGESIZE_16 is not set
#
# General setup
#
CONFIG_FIQ=y
# CONFIG_ZBOOT_ROM is not set
CONFIG_ZBOOT_ROM_TEXT=0
CONFIG_ZBOOT_ROM_BSS=0
CONFIG_FPE_NWFPE=y
CONFIG_KCORE_ELF=y
# CONFIG_KCORE_AOUT is not set
# CONFIG_BINFMT_AOUT is not set
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_CMDLINE=""
# CONFIG_ALIGNMENT_TRAP is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play configuration
#
# CONFIG_PNP is not set
# CONFIG_ISAPNP is not set
# CONFIG_PNPBIOS is not set
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_CISS_SCSI_TAPE is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set
#
# Acorn-specific block devices
#
# CONFIG_BLK_DEV_FD1772 is not set
# CONFIG_BLK_DEV_MFM is not set
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_HD is not set
#
# SCSI support
#
# CONFIG_SCSI is not set
#
# ISDN subsystem
#
#
# Input device support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_TSLIBDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
# CONFIG_GAMEPORT_NS558 is not set
# CONFIG_GAMEPORT_L4 is not set
# CONFIG_GAMEPORT_EMU10K1 is not set
# CONFIG_GAMEPORT_VORTEX is not set
# CONFIG_GAMEPORT_FM801 is not set
# CONFIG_GAMEPORT_CS461x is not set
# CONFIG_SERIO is not set
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_ACORN is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
# CONFIG_SERIAL_8250_CONSOLE is not set
# CONFIG_SERIAL_8250_CS is not set
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_MANY_PORTS is not set
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_MULTIPORT is not set
# CONFIG_SERIAL_8250_RSA is not set
# CONFIG_ATOMWIDE_SERIAL is not set
# CONFIG_DUALSP_SERIAL is not set
# CONFIG_SERIAL_AMBA is not set
# CONFIG_SERIAL_AMBA_CONSOLE is not set
# CONFIG_SERIAL_CLPS711X is not set
# CONFIG_SERIAL_CLPS711X_CONSOLE is not set
# CONFIG_SERIAL_CLPS711X_OLD_NAME is not set
# CONFIG_SERIAL_21285 is not set
# CONFIG_SERIAL_21285_OLD is not set
# CONFIG_SERIAL_21285_CONSOLE is not set
# CONFIG_SERIAL_UART00 is not set
# CONFIG_SERIAL_UART00_CONSOLE is not set
# CONFIG_SERIAL_SA1100 is not set
# CONFIG_SERIAL_SA1100_CONSOLE is not set
# CONFIG_UNIX98_PTYS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCF=y
# CONFIG_I2C_ELEKTOR is not set
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_PROC is not set
#
# L3 serial bus support
#
# CONFIG_L3 is not set
# CONFIG_L3_ALGOBIT is not set
# CONFIG_L3_BIT_SA1100_GPIO is not set
# CONFIG_L3_SA1111 is not set
# CONFIG_BIT_SA1100_GPIO is not set
#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_PSMOUSE is not set
# CONFIG_QIC02_TAPE is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=y
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_JFS_FS is not set
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_DEBUG is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_SMB_FS is not set
# CONFIG_ZISOFS_FS is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
# CONFIG_ACORN_PARTITION_EESOX is not set
# CONFIG_ACORN_PARTITION_ICS is not set
CONFIG_ACORN_PARTITION_ADFS=y
# CONFIG_ACORN_PARTITION_POWERTEC is not set
CONFIG_ACORN_PARTITION_RISCIX=y
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
# CONFIG_MSDOS_PARTITION is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# Multimedia Capabilities Port drivers
#
# CONFIG_MCP is not set
# CONFIG_MCP_SA1100 is not set
# CONFIG_MCP_UCB1200 is not set
# CONFIG_MCP_UCB1200_AUDIO is not set
# CONFIG_MCP_UCB1200_TS is not set
#
# Console Switches
#
# CONFIG_SWITCHES is not set
# CONFIG_SWITCHES_SA1100 is not set
# CONFIG_SWITCHES_UCB1X00 is not set
#
# USB support
#
# CONFIG_USB is not set
#
# Kernel hacking
#
# CONFIG_NO_FRAME_POINTER is not set
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SLAB=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_WAITQ=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
#
# Security options
#
CONFIG_SECURITY_CAPABILITIES=y
#
# Library routines
#
CONFIG_CRC32=y
# CONFIG_ZLIB_INFLATE is not set
# CONFIG_ZLIB_DEFLATE is not set
arch/arm26/kernel/Makefile 已删除 100644 → 0
浏览文件 @ 0d0ed42e
#
# Makefile for the linux kernel.
#
# Object file lists.
AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR)
obj-y := compat.o dma.o entry.o irq.o process.o ptrace.o \
semaphore.o setup.o signal.o sys_arm.o time.o traps.o \
ecard.o dma.o ecard.o fiq.o time.o
extra-y := head.o init_task.o vmlinux.lds
obj-$(CONFIG_FIQ) += fiq.o
obj-$(CONFIG_MODULES) += armksyms.o
arch/arm26/kernel/armksyms.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/kernel/armksyms.c
*
* Copyright (C) 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/module.h>
#include <linux/user.h>
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/delay.h>
#include <linux/in6.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/syscalls.h>
#include <asm/byteorder.h>
#include <asm/elf.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/processor.h>
#include <asm/semaphore.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/checksum.h>
#include <asm/mach-types.h>
extern int dump_fpu(struct pt_regs *, struct user_fp_struct *);
extern void inswb(unsigned int port, void *to, int len);
extern void outswb(unsigned int port, const void *to, int len);
extern void __bad_xchg(volatile void *ptr, int size);
/*
* libgcc functions - functions that are used internally by the
* compiler... (prototypes are not correct though, but that
* doesn't really matter since they're not versioned).
*/
extern void __ashldi3(void);
extern void __ashrdi3(void);
extern void __divsi3(void);
extern void __lshrdi3(void);
extern void __modsi3(void);
extern void __muldi3(void);
extern void __ucmpdi2(void);
extern void __udivdi3(void);
extern void __umoddi3(void);
extern void __udivmoddi4(void);
extern void __udivsi3(void);
extern void __umodsi3(void);
extern void abort(void);
extern void ret_from_exception(void);
extern void fpundefinstr(void);
extern void fp_enter(void);
/*
* This has a special calling convention; it doesn't
* modify any of the usual registers, except for LR.
* FIXME - we used to use our own local version - looks to be in kernel/softirq now
*/
//extern void __do_softirq(void);
#define EXPORT_SYMBOL_ALIAS(sym,orig) \
const char __kstrtab_##sym[] \
__attribute__((section(".kstrtab"))) = \
__MODULE_STRING(sym); \
const struct module_symbol __ksymtab_##sym \
__attribute__((section("__ksymtab"))) = \
{ (unsigned long)&orig, __kstrtab_##sym };
/*
* floating point math emulator support.
* These symbols will never change their calling convention...
*/
EXPORT_SYMBOL_ALIAS(kern_fp_enter,fp_enter);
EXPORT_SYMBOL_ALIAS(fp_printk,printk);
EXPORT_SYMBOL_ALIAS(fp_send_sig,send_sig);
EXPORT_SYMBOL(fpundefinstr);
EXPORT_SYMBOL(ret_from_exception);
#ifdef CONFIG_VT
EXPORT_SYMBOL(kd_mksound);
#endif
//EXPORT_SYMBOL(__do_softirq);
/* platform dependent support */
EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(udelay);
EXPORT_SYMBOL(kernel_thread);
EXPORT_SYMBOL(system_rev);
EXPORT_SYMBOL(system_serial_low);
EXPORT_SYMBOL(system_serial_high);
#ifdef CONFIG_DEBUG_BUGVERBOSE
EXPORT_SYMBOL(__bug);
#endif
EXPORT_SYMBOL(__bad_xchg);
EXPORT_SYMBOL(__readwrite_bug);
EXPORT_SYMBOL(set_irq_type);
EXPORT_SYMBOL(pm_idle);
EXPORT_SYMBOL(pm_power_off);
/* processor dependencies */
EXPORT_SYMBOL(__machine_arch_type);
/* networking */
EXPORT_SYMBOL(csum_partial_copy_nocheck);
EXPORT_SYMBOL(__csum_ipv6_magic);
/* io */
#ifndef __raw_readsb
EXPORT_SYMBOL(__raw_readsb);
#endif
#ifndef __raw_readsw
EXPORT_SYMBOL(__raw_readsw);
#endif
#ifndef __raw_readsl
EXPORT_SYMBOL(__raw_readsl);
#endif
#ifndef __raw_writesb
EXPORT_SYMBOL(__raw_writesb);
#endif
#ifndef __raw_writesw
EXPORT_SYMBOL(__raw_writesw);
#endif
#ifndef __raw_writesl
EXPORT_SYMBOL(__raw_writesl);
#endif
/* string / mem functions */
EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strncat);
EXPORT_SYMBOL(strcmp);
EXPORT_SYMBOL(strncmp);
EXPORT_SYMBOL(strchr);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strnlen);
EXPORT_SYMBOL(strrchr);
EXPORT_SYMBOL(strstr);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memscan);
EXPORT_SYMBOL(__memzero);
/* user mem (segment) */
EXPORT_SYMBOL(uaccess_kernel);
EXPORT_SYMBOL(uaccess_user);
EXPORT_SYMBOL(__get_user_1);
EXPORT_SYMBOL(__get_user_2);
EXPORT_SYMBOL(__get_user_4);
EXPORT_SYMBOL(__get_user_8);
EXPORT_SYMBOL(__put_user_1);
EXPORT_SYMBOL(__put_user_2);
EXPORT_SYMBOL(__put_user_4);
EXPORT_SYMBOL(__put_user_8);
/* gcc lib functions */
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__divsi3);
EXPORT_SYMBOL(__lshrdi3);
EXPORT_SYMBOL(__modsi3);
EXPORT_SYMBOL(__muldi3);
EXPORT_SYMBOL(__ucmpdi2);
EXPORT_SYMBOL(__udivdi3);
EXPORT_SYMBOL(__umoddi3);
EXPORT_SYMBOL(__udivmoddi4);
EXPORT_SYMBOL(__udivsi3);
EXPORT_SYMBOL(__umodsi3);
/* bitops */
EXPORT_SYMBOL(_set_bit_le);
EXPORT_SYMBOL(_test_and_set_bit_le);
EXPORT_SYMBOL(_clear_bit_le);
EXPORT_SYMBOL(_test_and_clear_bit_le);
EXPORT_SYMBOL(_change_bit_le);
EXPORT_SYMBOL(_test_and_change_bit_le);
EXPORT_SYMBOL(_find_first_zero_bit_le);
EXPORT_SYMBOL(_find_next_zero_bit_le);
/* elf */
EXPORT_SYMBOL(elf_platform);
EXPORT_SYMBOL(elf_hwcap);
#ifdef CONFIG_PREEMPT
EXPORT_SYMBOL(kernel_flag);
#endif
arch/arm26/kernel/asm-offsets.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* Copyright (C) 1995-2001 Russell King
* 2001-2002 Keith Owens
* 2003 Ian Molton
*
* Generate definitions needed by assembly language modules.
* This code generates raw asm output which is post-processed to extract
* and format the required data.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/pgtable.h>
#include <asm/uaccess.h>
/*
* Make sure that the compiler and target are compatible.
*/
#if defined(__APCS_32__) && defined(CONFIG_CPU_26)
#error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26
#endif
/* Use marker if you need to separate the values later */
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
#define BLANK() asm volatile("\n->" : : )
int main(void)
{
DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
BLANK();
DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
BLANK();
DEFINE(VM_EXEC, VM_EXEC);
BLANK();
BLANK();
DEFINE(PAGE_PRESENT, _PAGE_PRESENT);
DEFINE(PAGE_READONLY, _PAGE_READONLY);
DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER);
DEFINE(PAGE_OLD, _PAGE_OLD);
DEFINE(PAGE_CLEAN, _PAGE_CLEAN);
BLANK();
DEFINE(PAGE_SZ, PAGE_SIZE);
BLANK();
DEFINE(SYS_ERROR0, 0x9f0000);
return 0;
}
arch/arm26/kernel/calls.S 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/kernel/calls.S
*
* Copyright (C) 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* FIXME
* This file is included twice in entry.S which may not be necessary
*/
//FIXME - clearly NR_syscalls is never defined here
#ifndef NR_syscalls
#define NR_syscalls 256
#else
__syscall_start:
/* 0 */ .long sys_ni_syscall
.long sys_exit
.long sys_fork_wrapper
.long sys_read
.long sys_write
/* 5 */ .long sys_open
.long sys_close
.long sys_ni_syscall /* was sys_waitpid */
.long sys_creat
.long sys_link
/* 10 */ .long sys_unlink
.long sys_execve_wrapper
.long sys_chdir
.long sys_time /* used by libc4 */
.long sys_mknod
/* 15 */ .long sys_chmod
.long sys_lchown16
.long sys_ni_syscall /* was sys_break */
.long sys_ni_syscall /* was sys_stat */
.long sys_lseek
/* 20 */ .long sys_getpid
.long sys_mount
.long sys_oldumount /* used by libc4 */
.long sys_setuid16
.long sys_getuid16
/* 25 */ .long sys_stime
.long sys_ptrace
.long sys_alarm /* used by libc4 */
.long sys_ni_syscall /* was sys_fstat */
.long sys_pause
/* 30 */ .long sys_utime /* used by libc4 */
.long sys_ni_syscall /* was sys_stty */
.long sys_ni_syscall /* was sys_getty */
.long sys_access
.long sys_nice
/* 35 */ .long sys_ni_syscall /* was sys_ftime */
.long sys_sync
.long sys_kill
.long sys_rename
.long sys_mkdir
/* 40 */ .long sys_rmdir
.long sys_dup
.long sys_pipe
.long sys_times
.long sys_ni_syscall /* was sys_prof */
/* 45 */ .long sys_brk
.long sys_setgid16
.long sys_getgid16
.long sys_ni_syscall /* was sys_signal */
.long sys_geteuid16
/* 50 */ .long sys_getegid16
.long sys_acct
.long sys_umount
.long sys_ni_syscall /* was sys_lock */
.long sys_ioctl
/* 55 */ .long sys_fcntl
.long sys_ni_syscall /* was sys_mpx */
.long sys_setpgid
.long sys_ni_syscall /* was sys_ulimit */
.long sys_ni_syscall /* was sys_olduname */
/* 60 */ .long sys_umask
.long sys_chroot
.long sys_ustat
.long sys_dup2
.long sys_getppid
/* 65 */ .long sys_getpgrp
.long sys_setsid
.long sys_sigaction
.long sys_ni_syscall /* was sys_sgetmask */
.long sys_ni_syscall /* was sys_ssetmask */
/* 70 */ .long sys_setreuid16
.long sys_setregid16
.long sys_sigsuspend_wrapper
.long sys_sigpending
.long sys_sethostname
/* 75 */ .long sys_setrlimit
.long sys_old_getrlimit /* used by libc4 */
.long sys_getrusage
.long sys_gettimeofday
.long sys_settimeofday
/* 80 */ .long sys_getgroups16
.long sys_setgroups16
.long old_select /* used by libc4 */
.long sys_symlink
.long sys_ni_syscall /* was sys_lstat */
/* 85 */ .long sys_readlink
.long sys_uselib
.long sys_swapon
.long sys_reboot
.long old_readdir /* used by libc4 */
/* 90 */ .long old_mmap /* used by libc4 */
.long sys_munmap
.long sys_truncate
.long sys_ftruncate
.long sys_fchmod
/* 95 */ .long sys_fchown16
.long sys_getpriority
.long sys_setpriority
.long sys_ni_syscall /* was sys_profil */
.long sys_statfs
/* 100 */ .long sys_fstatfs
.long sys_ni_syscall
.long sys_socketcall
.long sys_syslog
.long sys_setitimer
/* 105 */ .long sys_getitimer
.long sys_newstat
.long sys_newlstat
.long sys_newfstat
.long sys_ni_syscall /* was sys_uname */
/* 110 */ .long sys_ni_syscall /* was sys_iopl */
.long sys_vhangup
.long sys_ni_syscall
.long sys_syscall /* call a syscall */
.long sys_wait4
/* 115 */ .long sys_swapoff
.long sys_sysinfo
.long sys_ipc
.long sys_fsync
.long sys_sigreturn_wrapper
/* 120 */ .long sys_clone_wapper
.long sys_setdomainname
.long sys_newuname
.long sys_ni_syscall
.long sys_adjtimex
/* 125 */ .long sys_mprotect
.long sys_sigprocmask
.long sys_ni_syscall /* WAS: sys_create_module */
.long sys_init_module
.long sys_delete_module
/* 130 */ .long sys_ni_syscall /* WAS: sys_get_kernel_syms */
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
.long sys_bdflush
/* 135 */ .long sys_sysfs
.long sys_personality
.long sys_ni_syscall /* .long _sys_afs_syscall */
.long sys_setfsuid16
.long sys_setfsgid16
/* 140 */ .long sys_llseek
.long sys_getdents
.long sys_select
.long sys_flock
.long sys_msync
/* 145 */ .long sys_readv
.long sys_writev
.long sys_getsid
.long sys_fdatasync
.long sys_sysctl
/* 150 */ .long sys_mlock
.long sys_munlock
.long sys_mlockall
.long sys_munlockall
.long sys_sched_setparam
/* 155 */ .long sys_sched_getparam
.long sys_sched_setscheduler
.long sys_sched_getscheduler
.long sys_sched_yield
.long sys_sched_get_priority_max
/* 160 */ .long sys_sched_get_priority_min
.long sys_sched_rr_get_interval
.long sys_nanosleep
.long sys_arm_mremap
.long sys_setresuid16
/* 165 */ .long sys_getresuid16
.long sys_ni_syscall
.long sys_ni_syscall /* WAS: sys_query_module */
.long sys_poll
.long sys_nfsservctl
/* 170 */ .long sys_setresgid16
.long sys_getresgid16
.long sys_prctl
.long sys_rt_sigreturn_wrapper
.long sys_rt_sigaction
/* 175 */ .long sys_rt_sigprocmask
.long sys_rt_sigpending
.long sys_rt_sigtimedwait
.long sys_rt_sigqueueinfo
.long sys_rt_sigsuspend_wrapper
/* 180 */ .long sys_pread64
.long sys_pwrite64
.long sys_chown16
.long sys_getcwd
.long sys_capget
/* 185 */ .long sys_capset
.long sys_sigaltstack_wrapper
.long sys_sendfile
.long sys_ni_syscall
.long sys_ni_syscall
/* 190 */ .long sys_vfork_wrapper
.long sys_getrlimit
.long sys_mmap2
.long sys_truncate64
.long sys_ftruncate64
/* 195 */ .long sys_stat64
.long sys_lstat64
.long sys_fstat64
.long sys_lchown
.long sys_getuid
/* 200 */ .long sys_getgid
.long sys_geteuid
.long sys_getegid
.long sys_setreuid
.long sys_setregid
/* 205 */ .long sys_getgroups
.long sys_setgroups
.long sys_fchown
.long sys_setresuid
.long sys_getresuid
/* 210 */ .long sys_setresgid
.long sys_getresgid
.long sys_chown
.long sys_setuid
.long sys_setgid
/* 215 */ .long sys_setfsuid
.long sys_setfsgid
.long sys_getdents64
.long sys_pivot_root
.long sys_mincore
/* 220 */ .long sys_madvise
.long sys_fcntl64
.long sys_ni_syscall /* TUX */
.long sys_ni_syscall /* WAS: sys_security */
.long sys_gettid
/* 225 */ .long sys_readahead
.long sys_setxattr
.long sys_lsetxattr
.long sys_fsetxattr
.long sys_getxattr
/* 230 */ .long sys_lgetxattr
.long sys_fgetxattr
.long sys_listxattr
.long sys_llistxattr
.long sys_flistxattr
/* 235 */ .long sys_removexattr
.long sys_lremovexattr
.long sys_fremovexattr
.long sys_tkill
__syscall_end:
.rept NR_syscalls - (__syscall_end - __syscall_start) / 4
.long sys_ni_syscall
.endr
#endif
arch/arm26/kernel/compat.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/kernel/compat.c
*
* Copyright (C) 2001 Russell King
* 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* We keep the old params compatibility cruft in one place (here)
* so we don't end up with lots of mess around other places.
*
* NOTE:
* The old struct param_struct is deprecated, but it will be kept in
* the kernel for 5 years from now (2001). This will allow boot loaders
* to convert to the new struct tag way.
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/init.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/page.h>
//#include <asm/arch.h>
//#include <asm/mach/irq.h>
/*
* Usage:
* - do not go blindly adding fields, add them at the end
* - when adding fields, don't rely on the address until
* a patch from me has been released
* - unused fields should be zero (for future expansion)
* - this structure is relatively short-lived - only
* guaranteed to contain useful data in setup_arch()
*
* This is the old deprecated way to pass parameters to the kernel
*/
struct param_struct {
union {
struct {
unsigned long page_size; /* 0 */
unsigned long nr_pages; /* 4 */
unsigned long ramdisk_size; /* 8 */
unsigned long flags; /* 12 */
#define FLAG_READONLY 1
#define FLAG_RDLOAD 4
#define FLAG_RDPROMPT 8
unsigned long rootdev; /* 16 */
unsigned long video_num_cols; /* 20 */
unsigned long video_num_rows; /* 24 */
unsigned long video_x; /* 28 */
unsigned long video_y; /* 32 */
unsigned long memc_control_reg; /* 36 */
unsigned char sounddefault; /* 40 */
unsigned char adfsdrives; /* 41 */
unsigned char bytes_per_char_h; /* 42 */
unsigned char bytes_per_char_v; /* 43 */
unsigned long pages_in_bank[4]; /* 44 */
unsigned long pages_in_vram; /* 60 */
unsigned long initrd_start; /* 64 */
unsigned long initrd_size; /* 68 */
unsigned long rd_start; /* 72 */
unsigned long system_rev; /* 76 */
unsigned long system_serial_low; /* 80 */
unsigned long system_serial_high; /* 84 */
unsigned long mem_fclk_21285; /* 88 */
} s;
char unused[256];
} u1;
union {
char paths[8][128];
struct {
unsigned long magic;
char n[1024 - sizeof(unsigned long)];
} s;
} u2;
char commandline[COMMAND_LINE_SIZE];
};
static struct tag * __init memtag(struct tag *tag, unsigned long start, unsigned long size)
{
tag = tag_next(tag);
tag->hdr.tag = ATAG_MEM;
tag->hdr.size = tag_size(tag_mem32);
tag->u.mem.size = size;
tag->u.mem.start = start;
return tag;
}
static void __init build_tag_list(struct param_struct *params, void *taglist)
{
struct tag *tag = taglist;
if (params->u1.s.page_size != PAGE_SIZE) {
printk(KERN_WARNING "Warning: bad configuration page, "
"trying to continue\n");
return;
}
printk(KERN_DEBUG "Converting old-style param struct to taglist\n");
tag->hdr.tag = ATAG_CORE;
tag->hdr.size = tag_size(tag_core);
tag->u.core.flags = params->u1.s.flags & FLAG_READONLY;
tag->u.core.pagesize = params->u1.s.page_size;
tag->u.core.rootdev = params->u1.s.rootdev;
tag = tag_next(tag);
tag->hdr.tag = ATAG_RAMDISK;
tag->hdr.size = tag_size(tag_ramdisk);
tag->u.ramdisk.flags = (params->u1.s.flags & FLAG_RDLOAD ? 1 : 0) |
(params->u1.s.flags & FLAG_RDPROMPT ? 2 : 0);
tag->u.ramdisk.size = params->u1.s.ramdisk_size;
tag->u.ramdisk.start = params->u1.s.rd_start;
tag = tag_next(tag);
tag->hdr.tag = ATAG_INITRD;
tag->hdr.size = tag_size(tag_initrd);
tag->u.initrd.start = params->u1.s.initrd_start;
tag->u.initrd.size = params->u1.s.initrd_size;
tag = tag_next(tag);
tag->hdr.tag = ATAG_SERIAL;
tag->hdr.size = tag_size(tag_serialnr);
tag->u.serialnr.low = params->u1.s.system_serial_low;
tag->u.serialnr.high = params->u1.s.system_serial_high;
tag = tag_next(tag);
tag->hdr.tag = ATAG_REVISION;
tag->hdr.size = tag_size(tag_revision);
tag->u.revision.rev = params->u1.s.system_rev;
tag = memtag(tag, PHYS_OFFSET, params->u1.s.nr_pages * PAGE_SIZE);
tag = tag_next(tag);
tag->hdr.tag = ATAG_ACORN;
tag->hdr.size = tag_size(tag_acorn);
tag->u.acorn.memc_control_reg = params->u1.s.memc_control_reg;
tag->u.acorn.vram_pages = params->u1.s.pages_in_vram;
tag->u.acorn.sounddefault = params->u1.s.sounddefault;
tag->u.acorn.adfsdrives = params->u1.s.adfsdrives;
tag = tag_next(tag);
tag->hdr.tag = ATAG_CMDLINE;
tag->hdr.size = (strlen(params->commandline) + 3 +
sizeof(struct tag_header)) >> 2;
strcpy(tag->u.cmdline.cmdline, params->commandline);
tag = tag_next(tag);
tag->hdr.tag = ATAG_NONE;
tag->hdr.size = 0;
memmove(params, taglist, ((int)tag) - ((int)taglist) +
sizeof(struct tag_header));
}
void __init convert_to_tag_list(struct tag *tags)
{
struct param_struct *params = (struct param_struct *)tags;
build_tag_list(params, &params->u2);
}
void __init squash_mem_tags(struct tag *tag)
{
for (; tag->hdr.size; tag = tag_next(tag))
if (tag->hdr.tag == ATAG_MEM)
tag->hdr.tag = ATAG_NONE;
}
arch/arm26/kernel/dma.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/kernel/dma.c
*
* Copyright (C) 1995-2000 Russell King
* 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Front-end to the DMA handling. This handles the allocation/freeing
* of DMA channels, and provides a unified interface to the machines
* DMA facilities.
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/mman.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
#include <asm/dma.h>
DEFINE_SPINLOCK(dma_spin_lock);
static dma_t dma_chan[MAX_DMA_CHANNELS];
/*
* Get dma list for /proc/dma
*/
int get_dma_list(char *buf)
{
dma_t *dma;
char *p = buf;
int i;
for (i = 0, dma = dma_chan; i < MAX_DMA_CHANNELS; i++, dma++)
if (dma->lock)
p += sprintf(p, "%2d: %14s %s\n", i,
dma->d_ops->type, dma->device_id);
return p - buf;
}
/*
* Request DMA channel
*
* On certain platforms, we have to allocate an interrupt as well...
*/
int request_dma(dmach_t channel, const char *device_id)
{
dma_t *dma = dma_chan + channel;
int ret;
if (channel >= MAX_DMA_CHANNELS || !dma->d_ops)
goto bad_dma;
if (xchg(&dma->lock, 1) != 0)
goto busy;
dma->device_id = device_id;
dma->active = 0;
dma->invalid = 1;
ret = 0;
if (dma->d_ops->request)
ret = dma->d_ops->request(channel, dma);
if (ret)
xchg(&dma->lock, 0);
return ret;
bad_dma:
printk(KERN_ERR "dma: trying to allocate DMA%d\n", channel);
return -EINVAL;
busy:
return -EBUSY;
}
/*
* Free DMA channel
*
* On certain platforms, we have to free interrupt as well...
*/
void free_dma(dmach_t channel)
{
dma_t *dma = dma_chan + channel;
if (channel >= MAX_DMA_CHANNELS || !dma->d_ops)
goto bad_dma;
if (dma->active) {
printk(KERN_ERR "dma%d: freeing active DMA\n", channel);
dma->d_ops->disable(channel, dma);
dma->active = 0;
}
if (xchg(&dma->lock, 0) != 0) {
if (dma->d_ops->free)
dma->d_ops->free(channel, dma);
return;
}
printk(KERN_ERR "dma%d: trying to free free DMA\n", channel);
return;
bad_dma:
printk(KERN_ERR "dma: trying to free DMA%d\n", channel);
}
/* Set DMA Scatter-Gather list
*/
void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg)
{
dma_t *dma = dma_chan + channel;
if (dma->active)
printk(KERN_ERR "dma%d: altering DMA SG while "
"DMA active\n", channel);
dma->sg = sg;
dma->sgcount = nr_sg;
dma->using_sg = 1;
dma->invalid = 1;
}
/* Set DMA address
*
* Copy address to the structure, and set the invalid bit
*/
void set_dma_addr (dmach_t channel, unsigned long physaddr)
{
dma_t *dma = dma_chan + channel;
if (dma->active)
printk(KERN_ERR "dma%d: altering DMA address while "
"DMA active\n", channel);
dma->sg = &dma->buf;
dma->sgcount = 1;
dma->buf.__address = (char *)physaddr;//FIXME - not pretty
dma->using_sg = 0;
dma->invalid = 1;
}
/* Set DMA byte count
*
* Copy address to the structure, and set the invalid bit
*/
void set_dma_count (dmach_t channel, unsigned long count)
{
dma_t *dma = dma_chan + channel;
if (dma->active)
printk(KERN_ERR "dma%d: altering DMA count while "
"DMA active\n", channel);
dma->sg = &dma->buf;
dma->sgcount = 1;
dma->buf.length = count;
dma->using_sg = 0;
dma->invalid = 1;
}
/* Set DMA direction mode
*/
void set_dma_mode (dmach_t channel, dmamode_t mode)
{
dma_t *dma = dma_chan + channel;
if (dma->active)
printk(KERN_ERR "dma%d: altering DMA mode while "
"DMA active\n", channel);
dma->dma_mode = mode;
dma->invalid = 1;
}
/* Enable DMA channel
*/
void enable_dma (dmach_t channel)
{
dma_t *dma = dma_chan + channel;
if (!dma->lock)
goto free_dma;
if (dma->active == 0) {
dma->active = 1;
dma->d_ops->enable(channel, dma);
}
return;
free_dma:
printk(KERN_ERR "dma%d: trying to enable free DMA\n", channel);
BUG();
}
/* Disable DMA channel
*/
void disable_dma (dmach_t channel)
{
dma_t *dma = dma_chan + channel;
if (!dma->lock)
goto free_dma;
if (dma->active == 1) {
dma->active = 0;
dma->d_ops->disable(channel, dma);
}
return;
free_dma:
printk(KERN_ERR "dma%d: trying to disable free DMA\n", channel);
BUG();
}
/*
* Is the specified DMA channel active?
*/
int dma_channel_active(dmach_t channel)
{
return dma_chan[channel].active;
}
void set_dma_page(dmach_t channel, char pagenr)
{
printk(KERN_ERR "dma%d: trying to set_dma_page\n", channel);
}
void set_dma_speed(dmach_t channel, int cycle_ns)
{
dma_t *dma = dma_chan + channel;
int ret = 0;
if (dma->d_ops->setspeed)
ret = dma->d_ops->setspeed(channel, dma, cycle_ns);
dma->speed = ret;
}
int get_dma_residue(dmach_t channel)
{
dma_t *dma = dma_chan + channel;
int ret = 0;
if (dma->d_ops->residue)
ret = dma->d_ops->residue(channel, dma);
return ret;
}
void __init init_dma(void)
{
arch_dma_init(dma_chan);
}
EXPORT_SYMBOL(request_dma);
EXPORT_SYMBOL(free_dma);
EXPORT_SYMBOL(enable_dma);
EXPORT_SYMBOL(disable_dma);
EXPORT_SYMBOL(set_dma_addr);
EXPORT_SYMBOL(set_dma_count);
EXPORT_SYMBOL(set_dma_mode);
EXPORT_SYMBOL(set_dma_page);
EXPORT_SYMBOL(get_dma_residue);
EXPORT_SYMBOL(set_dma_sg);
EXPORT_SYMBOL(set_dma_speed);
EXPORT_SYMBOL(dma_spin_lock);
arch/arm26/kernel/ecard.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
此差异已折叠。
arch/arm26/kernel/entry.S 已删除 100644 → 0
浏览文件 @ 0d0ed42e
此差异已折叠。
arch/arm26/kernel/fiq.c 已删除 100644 → 0
浏览文件 @ 0d0ed42e
/*
* linux/arch/arm26/kernel/fiq.c
*
* Copyright (C) 1998 Russell King
* Copyright (C) 1998, 1999 Phil Blundell
* Copyright (C) 2003 Ian Molton
*
* FIQ support written by Philip Blundell <philb@gnu.org>, 1998.
*
* FIQ support re-written by Russell King to be more generic
*
* We now properly support a method by which the FIQ handlers can
* be stacked onto the vector. We still do not support sharing
* the FIQ vector itself.
*
* Operation is as follows:
* 1. Owner A claims FIQ:
* - default_fiq relinquishes control.
* 2. Owner A:
* - inserts code.
* - sets any registers,
* - enables FIQ.
* 3. Owner B claims FIQ:
* - if owner A has a relinquish function.
* - disable FIQs.
* - saves any registers.
* - returns zero.
* 4. Owner B:
* - inserts code.
* - sets any registers,
* - enables FIQ.
* 5. Owner B releases FIQ:
* - Owner A is asked to reacquire FIQ:
* - inserts code.
* - restores saved registers.
* - enables FIQ.
* 6. Goto 3
*/
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <asm/fiq.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pgalloc.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#define FIQ_VECTOR (vectors_base() + 0x1c)
static unsigned long no_fiq_insn;
#define unprotect_page_0()
#define protect_page_0()
/* Default reacquire function
* - we always relinquish FIQ control
* - we always reacquire FIQ control
*/
static int fiq_def_op(void *ref, int relinquish)
{
if (!relinquish) {
unprotect_page_0();
*(unsigned long *)FIQ_VECTOR = no_fiq_insn;
protect_page_0();
}
return 0;
}
static struct fiq_handler default_owner = {
.name = "default",
.fiq_op = fiq_def_op,
};
static struct fiq_handler *current_fiq = &default_owner;
int show_fiq_list(struct seq_file *p, void *v)
{
if (current_fiq != &default_owner)
seq_printf(p, "FIQ: %s\n", current_fiq->name);
return 0;
}
void set_fiq_handler(void *start, unsigned int length)
{
unprotect_page_0();
memcpy((void *)FIQ_VECTOR, start, length);
protect_page_0();
}
/*
* Taking an interrupt in FIQ mode is death, so both these functions
* disable irqs for the duration.
*/
void set_fiq_regs(struct pt_regs *regs)
{
register unsigned long tmp, tmp2;
__asm__ volatile (
"mov %0, pc \n"
"bic %1, %0, #0x3 \n"
"orr %1, %1, %3 \n"
"teqp %1, #0 @ select FIQ mode \n"
"mov r0, r0 \n"
"ldmia %2, {r8 - r14} \n"
"teqp %0, #0 @ return to SVC mode \n"
"mov r0, r0 "
: "=&r" (tmp), "=&r" (tmp2)
: "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26)
/* These registers aren't modified by the above code in a way
visible to the compiler, but we mark them as clobbers anyway
so that GCC won't put any of the input or output operands in
them. */
: "r8", "r9", "r10", "r11", "r12", "r13", "r14");
}
void get_fiq_regs(struct pt_regs *regs)
{
register unsigned long tmp, tmp2;
__asm__ volatile (
"mov %0, pc \n"
"bic %1, %0, #0x3 \n"
"orr %1, %1, %3 \n"
"teqp %1, #0 @ select FIQ mode \n"
"mov r0, r0 \n"
"stmia %2, {r8 - r14} \n"
"teqp %0, #0 @ return to SVC mode \n"
"mov r0, r0 "
: "=&r" (tmp), "=&r" (tmp2)
: "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26)
/* These registers aren't modified by the above code in a way
visible to the compiler, but we mark them as clobbers anyway
so that GCC won't put any of the input or output operands in
them. */
: "r8", "r9", "r10", "r11", "r12", "r13", "r14");
}
int claim_fiq(struct fiq_handler *f)
{
int ret = 0;
if (current_fiq) {
ret = -EBUSY;
if (current_fiq->fiq_op != NULL)
ret = current_fiq->fiq_op(current_fiq->dev_id, 1);
}
if (!ret) {
f->next = current_fiq;
current_fiq = f;
}
return ret;
}
void release_fiq(struct fiq_handler *f)
{
if (current_fiq != f) {
printk(KERN_ERR "%s FIQ trying to release %s FIQ\n",
f->name, current_fiq->name);
#ifdef CONFIG_DEBUG_ERRORS
__backtrace();
#endif
return;
}
do
current_fiq = current_fiq->next;
while (current_fiq->fiq_op(current_fiq->dev_id, 0));
}
void enable_fiq(int fiq)
{
enable_irq(fiq + FIQ_START);
}
void disable_fiq(int fiq)
{
disable_irq(fiq + FIQ_START);
}
EXPORT_SYMBOL(set_fiq_handler);
EXPORT_SYMBOL(set_fiq_regs);
EXPORT_SYMBOL(get_fiq_regs);
EXPORT_SYMBOL(claim_fiq);
EXPORT_SYMBOL(release_fiq);
EXPORT_SYMBOL(enable_fiq);
EXPORT_SYMBOL(disable_fiq);
void __init init_FIQ(void)
{
no_fiq_insn = *(unsigned long *)FIQ_VECTOR;
set_fs(get_fs());
}
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/*
* linux/arch/arm26/kernel/head.S
*
* Copyright (C) 1994-2000 Russell King
* Copyright (C) 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 26-bit kernel startup code
*/
#include <linux/linkage.h>
#include <asm/mach-types.h>
.globl swapper_pg_dir
.equ swapper_pg_dir, 0x0207d000
/*
* Entry point.
*/
.section ".init.text",#alloc,#execinstr
ENTRY(stext)
__entry:
cmp pc, #0x02000000
ldrlt pc, LC0 @ if 0x01800000, call at 0x02080000
teq r0, #0 @ Check for old calling method
blne oldparams @ Move page if old
adr r0, LC0
ldmib r0, {r2-r5, sp} @ Setup stack (and fetch other values)
mov r0, #0 @ Clear BSS
1: cmp r2, r3
strcc r0, [r2], #4
bcc 1b
bl detect_proc_type
str r0, [r4]
bl detect_arch_type
str r0, [r5]
#ifdef CONFIG_XIP_KERNEL
ldr r3, ETEXT @ data section copy
ldr r4, SDATA
ldr r5, EDATA
1:
ldr r6, [r3], #4
str r6, [r4], #4
cmp r4, r5
blt 1b
#endif
mov fp, #0
b start_kernel
LC0: .word _stext
.word __bss_start @ r2
.word _end @ r3
.word processor_id @ r4
.word __machine_arch_type @ r5
.word init_thread_union+8192 @ sp
#ifdef CONFIG_XIP_KERNEL
ETEXT: .word _endtext
SDATA: .word _sdata
EDATA: .word __bss_start
#endif
arm2_id: .long 0x41560200 @ ARM2 and 250 dont have a CPUID
arm250_id: .long 0x41560250 @ So we create some after probing for them
.align
oldparams: mov r4, #0x02000000
add r3, r4, #0x00080000
add r4, r4, #0x0007c000
1: ldmia r0!, {r5 - r12}
stmia r4!, {r5 - r12}
cmp r4, r3
blt 1b
mov pc, lr
/*
* We need some way to automatically detect the difference between
* these two machines. Unfortunately, it is not possible to detect
* the presence of the SuperIO chip, because that will hang the old
* Archimedes machines solid.
*/
/* DAG: Outdated, these have been combined !!!!!!! */
detect_arch_type:
#if defined(CONFIG_ARCH_ARC)
mov r0, #MACH_TYPE_ARCHIMEDES
#elif defined(CONFIG_ARCH_A5K)
mov r0, #MACH_TYPE_A5K
#endif
mov pc, lr
detect_proc_type:
mov ip, lr
mov r2, #0xea000000 @ Point undef instr to continuation
adr r0, continue - 12
orr r0, r2, r0, lsr #2
mov r1, #0
str r0, [r1, #4]
ldr r0, arm2_id
swp r2, r2, [r1] @ check for swp (ARM2 cant)
ldr r0, arm250_id
mrc 15, 0, r3, c0, c0 @ check for CP#15 (ARM250 cant)
mov r0, r3
continue: mov r2, #0xeb000000 @ Make undef vector loop
sub r2, r2, #2
str r2, [r1, #4]
mov pc, ip
arch/arm26/kernel/init_task.c 已删除 100644 → 0
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/*
* linux/arch/arm26/kernel/init_task.c
*
* Copyright (C) 2003 Ian Molton
*
*/
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/mqueue.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
static struct fs_struct init_fs = INIT_FS;
static struct files_struct init_files = INIT_FILES;
static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
struct mm_struct init_mm = INIT_MM(init_mm);
EXPORT_SYMBOL(init_mm);
/*
* Initial thread structure.
*
* We need to make sure that this is 8192-byte aligned due to the
* way process stacks are handled. This is done by making sure
* the linker maps this in the .text segment right after head.S,
* and making the linker scripts ensure the proper alignment.
*
* FIXME - should this be 32K alignment on arm26?
*
* The things we do for performance...
*/
union thread_union init_thread_union
__attribute__((__section__(".init.task"))) =
{ INIT_THREAD_INFO(init_task) };
/*
* Initial task structure.
*
* All other task structs will be allocated on slabs in fork.c
*/
struct task_struct init_task = INIT_TASK(init_task);
EXPORT_SYMBOL(init_task);
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/*
* linux/arch/arm26/kernel/process.c
*
* Copyright (C) 2003 Ian Molton - adapted for ARM26
* Copyright (C) 1996-2000 Russell King - Converted to ARM.
* Origional Copyright (C) 1995 Linus Torvalds
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <stdarg.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/leds.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
extern const char *processor_modes[];
extern void setup_mm_for_reboot(char mode);
static volatile int hlt_counter;
void disable_hlt(void)
{
hlt_counter++;
}
EXPORT_SYMBOL(disable_hlt);
void enable_hlt(void)
{
hlt_counter--;
}
EXPORT_SYMBOL(enable_hlt);
static int __init nohlt_setup(char *__unused)
{
hlt_counter = 1;
return 1;
}
static int __init hlt_setup(char *__unused)
{
hlt_counter = 0;
return 1;
}
__setup("nohlt", nohlt_setup);
__setup("hlt", hlt_setup);
/*
* This is our default idle handler. We need to disable
* interrupts here to ensure we don't miss a wakeup call.
*/
void cpu_idle(void)
{
/* endless idle loop with no priority at all */
while (1) {
while (!need_resched())
cpu_relax();
preempt_enable_no_resched();
schedule();
preempt_disable();
}
}
static char reboot_mode = 'h';
int __init reboot_setup(char *str)
{
reboot_mode = str[0];
return 1;
}
__setup("reboot=", reboot_setup);
/* ARM26 cant do these but we still need to define them. */
void machine_halt(void)
{
}
void machine_power_off(void)
{
}
void machine_restart(char * __unused)
{
/*
* Clean and disable cache, and turn off interrupts
*/
cpu_proc_fin();
/*
* Tell the mm system that we are going to reboot -
* we may need it to insert some 1:1 mappings so that
* soft boot works.
*/
setup_mm_for_reboot(reboot_mode);
/*
* copy branch instruction to reset location and call it
*/
*(unsigned long *)0 = *(unsigned long *)0x03800000;
((void(*)(void))0)();
/*
* Whoops - the architecture was unable to reboot.
* Tell the user! Should never happen...
*/
mdelay(1000);
printk("Reboot failed -- System halted\n");
while (1);
}
void show_regs(struct pt_regs * regs)
{
unsigned long flags;
flags = condition_codes(regs);
printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
"sp : %08lx ip : %08lx fp : %08lx\n",
instruction_pointer(regs),
regs->ARM_lr, print_tainted(), regs->ARM_sp,
regs->ARM_ip, regs->ARM_fp);
printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
regs->ARM_r10, regs->ARM_r9,
regs->ARM_r8);
printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
regs->ARM_r7, regs->ARM_r6,
regs->ARM_r5, regs->ARM_r4);
printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
regs->ARM_r3, regs->ARM_r2,
regs->ARM_r1, regs->ARM_r0);
printk("Flags: %c%c%c%c",
flags & PSR_N_BIT ? 'N' : 'n',
flags & PSR_Z_BIT ? 'Z' : 'z',
flags & PSR_C_BIT ? 'C' : 'c',
flags & PSR_V_BIT ? 'V' : 'v');
printk(" IRQs o%s FIQs o%s Mode %s Segment %s\n",
interrupts_enabled(regs) ? "n" : "ff",
fast_interrupts_enabled(regs) ? "n" : "ff",
processor_modes[processor_mode(regs)],
get_fs() == get_ds() ? "kernel" : "user");
}
void show_fpregs(struct user_fp *regs)
{
int i;
for (i = 0; i < 8; i++) {
unsigned long *p;
char type;
p = (unsigned long *)(regs->fpregs + i);
switch (regs->ftype[i]) {
case 1: type = 'f'; break;
case 2: type = 'd'; break;
case 3: type = 'e'; break;
default: type = '?'; break;
}
if (regs->init_flag)
type = '?';
printk(" f%d(%c): %08lx %08lx %08lx%c",
i, type, p[0], p[1], p[2], i & 1 ? '\n' : ' ');
}
printk("FPSR: %08lx FPCR: %08lx\n",
(unsigned long)regs->fpsr,
(unsigned long)regs->fpcr);
}
/*
* Task structure and kernel stack allocation.
*/
static unsigned long *thread_info_head;
static unsigned int nr_thread_info;
extern unsigned long get_page_8k(int priority);
extern void free_page_8k(unsigned long page);
// FIXME - is this valid?
#define EXTRA_TASK_STRUCT 0
#define ll_alloc_task_struct() ((struct thread_info *)get_page_8k(GFP_KERNEL))
#define ll_free_task_struct(p) free_page_8k((unsigned long)(p))
//FIXME - do we use *task param below looks like we dont, which is ok?
//FIXME - if EXTRA_TASK_STRUCT is zero we can optimise the below away permanently. *IF* its supposed to be zero.
struct thread_info *alloc_thread_info(struct task_struct *task)
{
struct thread_info *thread = NULL;
if (EXTRA_TASK_STRUCT) {
unsigned long *p = thread_info_head;
if (p) {
thread_info_head = (unsigned long *)p[0];
nr_thread_info -= 1;
}
thread = (struct thread_info *)p;
}
if (!thread)
thread = ll_alloc_task_struct();
#ifdef CONFIG_MAGIC_SYSRQ
/*
* The stack must be cleared if you want SYSRQ-T to
* give sensible stack usage information
*/
if (thread) {
char *p = (char *)thread;
memzero(p+KERNEL_STACK_SIZE, KERNEL_STACK_SIZE);
}
#endif
return thread;
}
void free_thread_info(struct thread_info *thread)
{
if (EXTRA_TASK_STRUCT && nr_thread_info < EXTRA_TASK_STRUCT) {
unsigned long *p = (unsigned long *)thread;
p[0] = (unsigned long)thread_info_head;
thread_info_head = p;
nr_thread_info += 1;
} else
ll_free_task_struct(thread);
}
/*
* Free current thread data structures etc..
*/
void exit_thread(void)
{
}
void flush_thread(void)
{
struct thread_info *thread = current_thread_info();
struct task_struct *tsk = current;
memset(&tsk->thread.debug, 0, sizeof(struct debug_info));
memset(&thread->fpstate, 0, sizeof(union fp_state));
clear_used_math();
}
void release_thread(struct task_struct *dead_task)
{
}
asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
int
copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start,
unsigned long unused, struct task_struct *p, struct pt_regs *regs)
{
struct thread_info *thread = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
*childregs = *regs;
childregs->ARM_r0 = 0;
childregs->ARM_sp = stack_start;
memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
thread->cpu_context.sp = (unsigned long)childregs;
thread->cpu_context.pc = (unsigned long)ret_from_fork | MODE_SVC26 | PSR_I_BIT;
return 0;
}
/*
* fill in the fpe structure for a core dump...
*/
int dump_fpu (struct pt_regs *regs, struct user_fp *fp)
{
struct thread_info *thread = current_thread_info();
int used_math = !!used_math();
if (used_math)
memcpy(fp, &thread->fpstate.soft, sizeof (*fp));
return used_math;
}
/*
* fill in the user structure for a core dump..
*/
void dump_thread(struct pt_regs * regs, struct user * dump)
{
struct task_struct *tsk = current;
dump->magic = CMAGIC;
dump->start_code = tsk->mm->start_code;
dump->start_stack = regs->ARM_sp & ~(PAGE_SIZE - 1);
dump->u_tsize = (tsk->mm->end_code - tsk->mm->start_code) >> PAGE_SHIFT;
dump->u_dsize = (tsk->mm->brk - tsk->mm->start_data + PAGE_SIZE - 1) >> PAGE_SHIFT;
dump->u_ssize = 0;
dump->u_debugreg[0] = tsk->thread.debug.bp[0].address;
dump->u_debugreg[1] = tsk->thread.debug.bp[1].address;
dump->u_debugreg[2] = tsk->thread.debug.bp[0].insn;
dump->u_debugreg[3] = tsk->thread.debug.bp[1].insn;
dump->u_debugreg[4] = tsk->thread.debug.nsaved;
if (dump->start_stack < 0x04000000)
dump->u_ssize = (0x04000000 - dump->start_stack) >> PAGE_SHIFT;
dump->regs = *regs;
dump->u_fpvalid = dump_fpu (regs, &dump->u_fp);
}
/*
* Shuffle the argument into the correct register before calling the
* thread function. r1 is the thread argument, r2 is the pointer to
* the thread function, and r3 points to the exit function.
* FIXME - make sure this is right - the older code used to zero fp
* and cause the parent to call sys_exit (do_exit in this version)
*/
extern void kernel_thread_helper(void);
asm( ".section .text\n"
" .align\n"
" .type kernel_thread_helper, #function\n"
"kernel_thread_helper:\n"
" mov r0, r1\n"
" mov lr, r3\n"
" mov pc, r2\n"
" .size kernel_thread_helper, . - kernel_thread_helper\n"
" .previous");
/*
* Create a kernel thread.
*/
pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
{
struct pt_regs regs;
memset(&regs, 0, sizeof(regs));
regs.ARM_r1 = (unsigned long)arg;
regs.ARM_r2 = (unsigned long)fn;
regs.ARM_r3 = (unsigned long)do_exit;
regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26;
return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
}
EXPORT_SYMBOL(kernel_thread);
unsigned long get_wchan(struct task_struct *p)
{
unsigned long fp, lr;
unsigned long stack_page;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
stack_page = 4096 + (unsigned long)p;
fp = thread_saved_fp(p);
do {
if (fp < stack_page || fp > 4092+stack_page)
return 0;
lr = pc_pointer (((unsigned long *)fp)[-1]);
if (!in_sched_functions(lr))
return lr;
fp = *(unsigned long *) (fp - 12);
} while (count ++ < 16);
return 0;
}
arch/arm26/kernel/ptrace.c 已删除 100644 → 0
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arch/arm26/kernel/ptrace.h 已删除 100644 → 0
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/*
* linux/arch/arm26/kernel/ptrace.h
*
* Copyright (C) 2000-2003 Russell King
* Copyright (C) 2003 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
extern void ptrace_cancel_bpt(struct task_struct *);
extern void ptrace_set_bpt(struct task_struct *);
extern void ptrace_break(struct task_struct *, struct pt_regs *);
arch/arm26/kernel/semaphore.c 已删除 100644 → 0
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#ifdef CONFIG_XIP_KERNEL
#include "vmlinux-arm26-xip.lds.in"
#else
#include "vmlinux-arm26.lds.in"
#endif
arch/arm26/lib/Makefile 已删除 100644 → 0
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#
# linux/arch/arm26/lib/Makefile
#
# Copyright (C) 1995-2000 Russell King
#
lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
copy_page.o delay.o findbit.o memchr.o memcpy.o \
memset.o memzero.o setbit.o \
strchr.o strrchr.o testchangebit.o \
testclearbit.o testsetbit.o getuser.o \
putuser.o ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
ucmpdi2.o udivdi3.o lib1funcs.o ecard.o io-acorn.o \
floppydma.o io-readsb.o io-writesb.o io-writesl.o \
uaccess-kernel.o uaccess-user.o io-readsw.o \
io-writesw.o io-readsl.o ecard.o io-acorn.o \
floppydma.o
lib-n :=
lib-$(CONFIG_VT)+= kbd.o
csumpartialcopy.o: csumpartialcopygeneric.S
csumpartialcopyuser.o: csumpartialcopygeneric.S
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/* More subroutines needed by GCC output code on some machines. */
/* Compile this one with gcc. */
/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* As a special exception, if you link this library with other files,
some of which are compiled with GCC, to produce an executable,
this library does not by itself cause the resulting executable
to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why
the executable file might be covered by the GNU General Public License.
*/
/* support functions required by the kernel. based on code from gcc-2.95.3 */
/* I Molton 29/07/01 */
#include "gcclib.h"
DItype
__ashldi3 (DItype u, word_type b)
{
DIunion w;
word_type bm;
DIunion uu;
if (b == 0)
return u;
uu.ll = u;
bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
if (bm <= 0)
{
w.s.low = 0;
w.s.high = (USItype)uu.s.low << -bm;
}
else
{
USItype carries = (USItype)uu.s.low >> bm;
w.s.low = (USItype)uu.s.low << b;
w.s.high = ((USItype)uu.s.high << b) | carries;
}
return w.ll;
}
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