m32r: bzip2/lzma kernel compression support
- Support bzip2 and lzma kernel compression for m32r. - Clean up arch/m32r/boot/compressed/misc.c. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>hifive-unleashed-5.1
Hirokazu Takata
parent
e968b8d404
commit
337214e8c6
|
|
@ -11,6 +11,9 @@ config M32R
|
|||
select HAVE_IDE
|
||||
select HAVE_OPROFILE
|
||||
select INIT_ALL_POSSIBLE
|
||||
select HAVE_KERNEL_GZIP
|
||||
select HAVE_KERNEL_BZIP2
|
||||
select HAVE_KERNEL_LZMA
|
||||
|
||||
config SBUS
|
||||
bool
|
||||
|
|
|
|||
|
|
@ -4,8 +4,8 @@
|
|||
# create a compressed vmlinux image from the original vmlinux
|
||||
#
|
||||
|
||||
targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o \
|
||||
piggy.o vmlinux.lds
|
||||
targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
|
||||
vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
|
||||
|
||||
OBJECTS = $(obj)/head.o $(obj)/misc.o
|
||||
|
||||
|
|
@ -27,6 +27,12 @@ $(obj)/vmlinux.bin: vmlinux FORCE
|
|||
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
|
||||
$(call if_changed,gzip)
|
||||
|
||||
$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
|
||||
$(call if_changed,bzip2)
|
||||
|
||||
$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
|
||||
$(call if_changed,lzma)
|
||||
|
||||
CFLAGS_misc.o += -fpic
|
||||
|
||||
ifdef CONFIG_MMU
|
||||
|
|
@ -37,5 +43,9 @@ endif
|
|||
|
||||
OBJCOPYFLAGS += -R .empty_zero_page
|
||||
|
||||
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
|
||||
suffix_$(CONFIG_KERNEL_GZIP) = gz
|
||||
suffix_$(CONFIG_KERNEL_BZIP2) = bz2
|
||||
suffix_$(CONFIG_KERNEL_LZMA) = lzma
|
||||
|
||||
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix_y) FORCE
|
||||
$(call if_changed,ld)
|
||||
|
|
|
|||
|
|
@ -9,140 +9,49 @@
|
|||
* Adapted for SH by Stuart Menefy, Aug 1999
|
||||
*
|
||||
* 2003-02-12: Support M32R by Takeo Takahashi
|
||||
* This is based on arch/sh/boot/compressed/misc.c.
|
||||
*/
|
||||
|
||||
#include <linux/string.h>
|
||||
|
||||
/*
|
||||
* gzip declarations
|
||||
*/
|
||||
|
||||
#define OF(args) args
|
||||
#define STATIC static
|
||||
|
||||
#undef memset
|
||||
#undef memcpy
|
||||
#define memzero(s, n) memset ((s), 0, (n))
|
||||
|
||||
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 = 0; /* valid bytes in inbuf */
|
||||
static unsigned inptr = 0; /* index of next byte to be processed in inbuf */
|
||||
static unsigned outcnt = 0; /* 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 unsigned char *input_data;
|
||||
static int input_len;
|
||||
|
||||
static long bytes_out = 0;
|
||||
static uch *output_data;
|
||||
static unsigned long output_ptr = 0;
|
||||
|
||||
#include "m32r_sio.c"
|
||||
|
||||
static unsigned long free_mem_ptr;
|
||||
static unsigned long free_mem_end_ptr;
|
||||
|
||||
#define HEAP_SIZE 0x10000
|
||||
|
||||
#include "../../../../lib/inflate.c"
|
||||
|
||||
void* memset(void* s, int c, size_t n)
|
||||
#ifdef CONFIG_KERNEL_BZIP2
|
||||
static void *memset(void *s, int c, size_t n)
|
||||
{
|
||||
int i;
|
||||
char *ss = (char*)s;
|
||||
char *ss = s;
|
||||
|
||||
for (i=0;i<n;i++) ss[i] = c;
|
||||
while (n--)
|
||||
*ss++ = c;
|
||||
return s;
|
||||
}
|
||||
#endif
|
||||
|
||||
void* memcpy(void* __dest, __const void* __src,
|
||||
size_t __n)
|
||||
{
|
||||
int i;
|
||||
char *d = (char *)__dest, *s = (char *)__src;
|
||||
#ifdef CONFIG_KERNEL_GZIP
|
||||
#define BOOT_HEAP_SIZE 0x10000
|
||||
#include "../../../../lib/decompress_inflate.c"
|
||||
#endif
|
||||
|
||||
for (i=0;i<__n;i++) d[i] = s[i];
|
||||
return __dest;
|
||||
}
|
||||
#ifdef CONFIG_KERNEL_BZIP2
|
||||
#define BOOT_HEAP_SIZE 0x400000
|
||||
#include "../../../../lib/decompress_bunzip2.c"
|
||||
#endif
|
||||
|
||||
/* ===========================================================================
|
||||
* Fill the input buffer. This is called only when the buffer is empty
|
||||
* and at least one byte is really needed.
|
||||
*/
|
||||
static int fill_inbuf(void)
|
||||
{
|
||||
if (insize != 0) {
|
||||
error("ran out of input data");
|
||||
}
|
||||
|
||||
inbuf = input_data;
|
||||
insize = input_len;
|
||||
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.)
|
||||
*/
|
||||
static void flush_window(void)
|
||||
{
|
||||
ulg c = crc; /* temporary variable */
|
||||
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;
|
||||
}
|
||||
#ifdef CONFIG_KERNEL_LZMA
|
||||
#define BOOT_HEAP_SIZE 0x10000
|
||||
#include "../../../../lib/decompress_unlzma.c"
|
||||
#endif
|
||||
|
||||
static void error(char *x)
|
||||
{
|
||||
|
|
@ -153,20 +62,20 @@ static void error(char *x)
|
|||
while(1); /* Halt */
|
||||
}
|
||||
|
||||
/* return decompressed size */
|
||||
void
|
||||
decompress_kernel(int mmu_on, unsigned char *zimage_data,
|
||||
unsigned int zimage_len, unsigned long heap)
|
||||
{
|
||||
unsigned char *input_data = zimage_data;
|
||||
int input_len = zimage_len;
|
||||
unsigned char *output_data;
|
||||
|
||||
output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
|
||||
+ (mmu_on ? 0x80000000 : 0);
|
||||
free_mem_ptr = heap;
|
||||
free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
|
||||
input_data = zimage_data;
|
||||
input_len = zimage_len;
|
||||
free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
|
||||
|
||||
makecrc();
|
||||
puts("Uncompressing Linux... ");
|
||||
gunzip();
|
||||
puts("Ok, booting the kernel.\n");
|
||||
puts("\nDecompressing Linux... ");
|
||||
decompress(input_data, input_len, NULL, NULL, output_data, NULL, error);
|
||||
puts("done.\nBooting the kernel.\n");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue