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sh: bzip2/lzma zImage support.

Browse source 
This plugs in bzip2 and lzma support for zImages.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-07-11 13:21:19 -04:00
parent df8ce2595f
commit 07e88e1bfc
7 changed files with 55 additions and 13 deletions
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2
arch/sh/Kconfig
View file

@ -18,6 +18,8 @@ config SUPERH
select HAVE_DMA_API_DEBUG
select HAVE_PERF_COUNTERS
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZMA
select RTC_LIB
select GENERIC_ATOMIC64
help

1
arch/sh/boot/compressed/.gitignore vendored Normal file
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@ -0,0 +1 @@
vmlinux.bin.*

19
arch/sh/boot/compressed/Makefile
View file

@ -5,6 +5,7 @@
#
targets := vmlinux vmlinux.bin vmlinux.bin.gz \
vmlinux.bin.bz2 vmlinux.bin.lzma \
head_$(BITS).o misc_$(BITS).o piggy.o
OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/cache.o
@ -38,10 +39,22 @@ $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
vmlinux.bin.all-y := $(obj)/vmlinux.bin
$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
$(call if_changed,gzip)
$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
$(call if_changed,bzip2)
$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
$(call if_changed,lzma)
suffix-$(CONFIG_KERNEL_GZIP) := gz
suffix-$(CONFIG_KERNEL_BZIP2) := bz2
suffix-$(CONFIG_KERNEL_LZMA) := lzma
OBJCOPYFLAGS += -R .empty_zero_page
$(obj)/piggy.o: $(obj)/piggy.S $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,as_o_S)
LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
$(call if_changed,ld)

14
arch/sh/boot/compressed/misc_32.c
View file

@ -41,12 +41,24 @@ extern int _end;
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#define HEAP_SIZE 0x10000
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#define HEAP_SIZE 0x400000
#else
#define HEAP_SIZE 0x10000
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
#ifdef CONFIG_SH_STANDARD_BIOS
size_t strlen(const char *s)
{

14
arch/sh/boot/compressed/misc_64.c
View file

@ -40,12 +40,24 @@ extern int _end;
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#define HEAP_SIZE 0x10000
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#define HEAP_SIZE 0x400000
#else
#define HEAP_SIZE 0x10000
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
void puts(const char *s)
{
}

8
arch/sh/boot/compressed/piggy.S
View file

@ -1,8 +0,0 @@
.global input_len, input_data
.data
input_len:
.long input_data_end - input_data
input_data:
.incbin "arch/sh/boot/compressed/vmlinux.bin.gz"
input_data_end:
.end

10
arch/sh/boot/compressed/vmlinux.scr Normal file
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@ -0,0 +1,10 @@
SECTIONS
{
.rodata.compressed : {
input_len = .;
LONG(input_data_end - input_data) input_data = .;
*(.data)
output_len = . - 4;
input_data_end = .;
}
}