h8300: compressed image support
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
This commit is contained in:
Yoshinori Sato
parent
df2078b8da
commit
06706c96ed
|
|
@ -0,0 +1,26 @@
|
|||
# arch/h8300/boot/Makefile
|
||||
|
||||
targets := vmlinux.srec vmlinux.bin zImage
|
||||
subdir- := compressed
|
||||
|
||||
OBJCOPYFLAGS_vmlinux.srec := -Osrec
|
||||
OBJCOPYFLAGS_vmlinux.bin := -Obinary
|
||||
OBJCOPYFLAGS_zImage := -O binary -R .note -R .comment -R .stab -R .stabstr -S
|
||||
|
||||
UIMAGE_LOADADDR = $(CONFIG_RAMBASE)
|
||||
UIMAGE_ENTRYADDR = $(shell /bin/bash -c 'printf "0x%08x" \
|
||||
$$[$(CONFIG_RAMBASE) + $(CONFIG_OFFSET)]')
|
||||
|
||||
$(obj)/vmlinux.srec $(obj)/vmlinux.bin: vmlinux FORCE
|
||||
$(call if_changed,objcopy)
|
||||
|
||||
$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
|
||||
$(call if_changed,objcopy)
|
||||
|
||||
$(obj)/compressed/vmlinux: FORCE
|
||||
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
|
||||
|
||||
$(obj)/uImage.bin: $(obj)/vmlinux.bin
|
||||
$(call if_changed,uimage,none)
|
||||
|
||||
CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec arch/$(ARCH)/uImage.bin
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
#
|
||||
# linux/arch/sh/boot/compressed/Makefile
|
||||
#
|
||||
# create a compressed vmlinux image from the original vmlinux
|
||||
#
|
||||
|
||||
targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
|
||||
|
||||
OBJECTS = $(obj)/head.o $(obj)/misc.o
|
||||
|
||||
#
|
||||
# IMAGE_OFFSET is the load offset of the compression loader
|
||||
# Assign dummy values if these 2 variables are not defined,
|
||||
# in order to suppress error message.
|
||||
#
|
||||
CONFIG_MEMORY_START ?= 0x00400000
|
||||
CONFIG_BOOT_LINK_OFFSET ?= 0x00140000
|
||||
IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET))))
|
||||
|
||||
LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
|
||||
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup $(obj)/vmlinux.lds
|
||||
|
||||
$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
|
||||
$(call if_changed,ld)
|
||||
@:
|
||||
|
||||
$(obj)/vmlinux.bin: vmlinux FORCE
|
||||
$(call if_changed,objcopy)
|
||||
|
||||
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
|
||||
$(call if_changed,gzip)
|
||||
|
||||
LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T
|
||||
OBJCOPYFLAGS := -O binary
|
||||
|
||||
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
|
||||
$(call if_changed,ld)
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
/*
|
||||
* linux/arch/h8300/boot/compressed/head.S
|
||||
*
|
||||
* Copyright (C) 2006 Yoshinori Sato
|
||||
*/
|
||||
|
||||
#include <linux/linkage.h>
|
||||
|
||||
.section .text..startup,"ax"
|
||||
.global startup
|
||||
startup:
|
||||
mov.l er0, er4
|
||||
mov.l er0, sp
|
||||
mov.l #__sbss, er0
|
||||
mov.l #__ebss, er1
|
||||
sub.l er0, er1
|
||||
shlr er1
|
||||
shlr er1
|
||||
sub.l er2, er2
|
||||
1:
|
||||
mov.l er2, @er0
|
||||
adds #4, er0
|
||||
dec.l #1, er1
|
||||
bne 1b
|
||||
jsr @decompress_kernel
|
||||
mov.l er4, er0
|
||||
jmp @0x400000
|
||||
|
||||
.align 9
|
||||
fake_headers_as_bzImage:
|
||||
.word 0
|
||||
.ascii "HdrS" ; header signature
|
||||
.word 0x0202 ; header version number (>= 0x0105)
|
||||
; or else old loadlin-1.5 will fail)
|
||||
.word 0 ; default_switch
|
||||
.word 0 ; SETUPSEG
|
||||
.word 0x1000
|
||||
.word 0 ; pointing to kernel version string
|
||||
.byte 0 ; = 0, old one (LILO, Loadlin,
|
||||
; 0xTV: T=0 for LILO
|
||||
; V = version
|
||||
.byte 1 ; Load flags bzImage=1
|
||||
.word 0x8000 ; size to move, when setup is not
|
||||
.long 0x100000 ; 0x100000 = default for big kernel
|
||||
.long 0 ; address of loaded ramdisk image
|
||||
.long 0 ; its size in bytes
|
||||
|
||||
.end
|
||||
|
|
@ -0,0 +1,74 @@
|
|||
/*
|
||||
* arch/h8300/boot/compressed/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
|
||||
*
|
||||
* Adapted for h8300 by Yoshinori Sato 2006
|
||||
*/
|
||||
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
/*
|
||||
* gzip declarations
|
||||
*/
|
||||
|
||||
#define OF(args) args
|
||||
#define STATIC static
|
||||
|
||||
#undef memset
|
||||
#undef memcpy
|
||||
#define memzero(s, n) memset((s), (0), (n))
|
||||
|
||||
extern int _end;
|
||||
static unsigned long free_mem_ptr;
|
||||
static unsigned long free_mem_end_ptr;
|
||||
|
||||
extern char input_data[];
|
||||
extern int input_len;
|
||||
static unsigned char *output;
|
||||
|
||||
#define HEAP_SIZE 0x10000
|
||||
|
||||
#include "../../../../lib/decompress_inflate.c"
|
||||
|
||||
void *memset(void *s, int c, size_t n)
|
||||
{
|
||||
int i;
|
||||
char *ss = (char *)s;
|
||||
|
||||
for (i = 0; i < n; i++)
|
||||
ss[i] = c;
|
||||
return s;
|
||||
}
|
||||
|
||||
void *memcpy(void *dest, const void *src, size_t n)
|
||||
{
|
||||
int i;
|
||||
char *d = (char *)dest, *s = (char *)src;
|
||||
|
||||
for (i = 0; i < n; i++)
|
||||
d[i] = s[i];
|
||||
return dest;
|
||||
}
|
||||
|
||||
static void error(char *x)
|
||||
{
|
||||
|
||||
while (1)
|
||||
; /* Halt */
|
||||
}
|
||||
|
||||
#define STACK_SIZE (4096)
|
||||
long user_stack[STACK_SIZE];
|
||||
long *stack_start = &user_stack[STACK_SIZE];
|
||||
|
||||
void decompress_kernel(void)
|
||||
{
|
||||
free_mem_ptr = (unsigned long)&_end;
|
||||
free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
|
||||
|
||||
decompress(input_data, input_len, NULL, NULL, output, NULL, error);
|
||||
}
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
SECTIONS
|
||||
{
|
||||
.text :
|
||||
{
|
||||
__stext = . ;
|
||||
__text = .;
|
||||
*(.text..startup)
|
||||
*(.text)
|
||||
__etext = . ;
|
||||
}
|
||||
|
||||
.rodata :
|
||||
{
|
||||
*(.rodata)
|
||||
}
|
||||
.data :
|
||||
|
||||
{
|
||||
__sdata = . ;
|
||||
___data_start = . ;
|
||||
*(.data.*)
|
||||
}
|
||||
.bss :
|
||||
{
|
||||
. = ALIGN(0x4) ;
|
||||
__sbss = . ;
|
||||
*(.bss*)
|
||||
. = ALIGN(0x4) ;
|
||||
__ebss = . ;
|
||||
__end = . ;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
SECTIONS
|
||||
{
|
||||
.data : {
|
||||
input_len = .;
|
||||
LONG(input_data_end - input_data) input_data = .;
|
||||
*(.data)
|
||||
input_data_end = .;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue