From 4df23cb65d9d526f3a2dc5df13bddb0a14da1b0c Mon Sep 17 00:00:00 2001 From: Andrea Adami Date: Sat, 12 Dec 2009 00:40:19 +0100 Subject: linux-kexecboot_2.6.32: add pending lzo and lzma patches from upstream (kernel patchwork). --- ...support-for-LZMA-compressed-kernel-images.patch | 51 ++++ ...-4-Add-support-for-LZO-compressed-kernels.patch | 321 +++++++++++++++++++++ ...upport-for-LZO-compressed-kernels-for-ARM.patch | 298 +++++++++++++++++++ ...support-for-LZO-compressed-kernels-on-x86.patch | 54 ++++ ...upport-for-initramfs-and-old-style-initrd.patch | 114 ++++++++ recipes/kexecboot/linux-kexecboot_2.6.32.bb | 5 + 6 files changed, 843 insertions(+) create mode 100644 recipes/kexecboot/linux-kexecboot-2.6.32/ARM-Add-support-for-LZMA-compressed-kernel-images.patch create mode 100644 recipes/kexecboot/linux-kexecboot-2.6.32/v3-1-4-Add-support-for-LZO-compressed-kernels.patch create mode 100644 recipes/kexecboot/linux-kexecboot-2.6.32/v3-2-4-Add-support-for-LZO-compressed-kernels-for-ARM.patch create mode 100644 recipes/kexecboot/linux-kexecboot-2.6.32/v3-3-4-Add-support-for-LZO-compressed-kernels-on-x86.patch create mode 100644 recipes/kexecboot/linux-kexecboot-2.6.32/v3-4-4-Add-LZO-compression-support-for-initramfs-and-old-style-initrd.patch (limited to 'recipes') diff --git a/recipes/kexecboot/linux-kexecboot-2.6.32/ARM-Add-support-for-LZMA-compressed-kernel-images.patch b/recipes/kexecboot/linux-kexecboot-2.6.32/ARM-Add-support-for-LZMA-compressed-kernel-images.patch new file mode 100644 index 0000000000..3344ea6439 --- /dev/null +++ b/recipes/kexecboot/linux-kexecboot-2.6.32/ARM-Add-support-for-LZMA-compressed-kernel-images.patch @@ -0,0 +1,51 @@ +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 350921d..34163da 100644 +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -20,6 +20,7 @@ config ARM + select HAVE_GENERIC_DMA_COHERENT + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_LZO ++ select HAVE_KERNEL_LZMA + help + The ARM series is a line of low-power-consumption RISC chip designs + licensed by ARM Ltd and targeted at embedded applications and +diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile +index 2d4d88b..3906432 100644 +--- a/arch/arm/boot/compressed/Makefile ++++ b/arch/arm/boot/compressed/Makefile +@@ -65,6 +65,7 @@ SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ + + suffix_$(CONFIG_KERNEL_GZIP) = gzip + suffix_$(CONFIG_KERNEL_LZO) = lzo ++suffix_$(CONFIG_KERNEL_LZMA) = lzma + + targets := vmlinux vmlinux.lds \ + piggy.$(suffix_y) piggy.$(suffix_y).o \ +diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c +index 7e0fe4d..4e35a10 100644 +--- a/arch/arm/boot/compressed/misc.c ++++ b/arch/arm/boot/compressed/misc.c +@@ -237,6 +237,10 @@ static unsigned long free_mem_end_ptr; + #include "../../../../lib/decompress_inflate.c" + #endif + ++#ifdef CONFIG_KERNEL_LZMA ++#include "../../../../lib/decompress_unlzma.c" ++#endif ++ + #ifdef CONFIG_KERNEL_LZO + #include "../../../../lib/decompress_unlzo.c" + #endif +diff --git a/arch/arm/boot/compressed/piggy.lzma.S b/arch/arm/boot/compressed/piggy.lzma.S +new file mode 100644 +index 0000000..d7e69cf +--- /dev/null ++++ b/arch/arm/boot/compressed/piggy.lzma.S +@@ -0,0 +1,6 @@ ++ .section .piggydata,#alloc ++ .globl input_data ++input_data: ++ .incbin "arch/arm/boot/compressed/piggy.lzma" ++ .globl input_data_end ++input_data_end: diff --git a/recipes/kexecboot/linux-kexecboot-2.6.32/v3-1-4-Add-support-for-LZO-compressed-kernels.patch b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-1-4-Add-support-for-LZO-compressed-kernels.patch new file mode 100644 index 0000000000..fad1b87466 --- /dev/null +++ b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-1-4-Add-support-for-LZO-compressed-kernels.patch @@ -0,0 +1,321 @@ +diff --git a/include/linux/decompress/unlzo.h b/include/linux/decompress/unlzo.h +new file mode 100644 +index 0000000..9872297 +--- /dev/null ++++ b/include/linux/decompress/unlzo.h +@@ -0,0 +1,10 @@ ++#ifndef DECOMPRESS_UNLZO_H ++#define DECOMPRESS_UNLZO_H ++ ++int unlzo(unsigned char *inbuf, int len, ++ int(*fill)(void*, unsigned int), ++ int(*flush)(void*, unsigned int), ++ unsigned char *output, ++ int *pos, ++ void(*error)(char *x)); ++#endif +diff --git a/init/Kconfig b/init/Kconfig +index f515864..eb65318 100644 +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -115,10 +115,13 @@ config HAVE_KERNEL_BZIP2 + config HAVE_KERNEL_LZMA + bool + ++config HAVE_KERNEL_LZO ++ bool ++ + choice + prompt "Kernel compression mode" + default KERNEL_GZIP +- depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA ++ depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_LZO + help + The linux kernel is a kind of self-extracting executable. + Several compression algorithms are available, which differ +@@ -141,9 +144,8 @@ config KERNEL_GZIP + bool "Gzip" + depends on HAVE_KERNEL_GZIP + help +- The old and tried gzip compression. Its compression ratio is +- the poorest among the 3 choices; however its speed (both +- compression and decompression) is the fastest. ++ The old and tried gzip compression. It provides a good balance ++ between compression ratio and decompression speed. + + config KERNEL_BZIP2 + bool "Bzip2" +@@ -164,6 +166,14 @@ config KERNEL_LZMA + two. Compression is slowest. The kernel size is about 33% + smaller with LZMA in comparison to gzip. + ++config KERNEL_LZO ++ bool "LZO" ++ depends on HAVE_KERNEL_LZO ++ help ++ Its compression ratio is the poorest among the 4. The kernel ++ size is about about 10% bigger than gzip; however its speed ++ (both compression and decompression) is the fastest. ++ + endchoice + + config SWAP +diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c +new file mode 100644 +index 0000000..2bb736f +--- /dev/null ++++ b/lib/decompress_unlzo.c +@@ -0,0 +1,208 @@ ++/* ++ * LZO decompressor for the Linux kernel. Code borrowed from the lzo ++ * implementation by Markus Franz Xaver Johannes Oberhumer. ++ * ++ * Linux kernel adaptation: ++ * Copyright (C) 2009 ++ * Albin Tonnerre, Free Electrons ++ * ++ * Original code: ++ * Copyright (C) 1996-2005 Markus Franz Xaver Johannes Oberhumer ++ * All Rights Reserved. ++ * ++ * lzop and the LZO library are free software; you can redistribute them ++ * and/or modify them 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; see the file COPYING. ++ * If not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * Markus F.X.J. Oberhumer ++ * ++ * http://www.oberhumer.com/opensource/lzop/ ++ */ ++ ++#ifdef STATIC ++#include "lzo/lzo1x_decompress.c" ++#else ++#include ++#include ++#endif ++ ++#include ++#include ++#include ++ ++#include ++#include ++ ++static const unsigned char lzop_magic[] = ++ { 0x89, 0x4c, 0x5a, 0x4f, 0x00, 0x0d, 0x0a, 0x1a, 0x0a }; ++ ++#define LZO_BLOCK_SIZE (256*1024l) ++#define HEADER_HAS_FILTER 0x00000800L ++ ++STATIC inline int INIT parse_header(u8 *input, u8 *skip) ++{ ++ int l; ++ u8 *parse = input; ++ u8 level = 0; ++ u16 version; ++ ++ /* read magic: 9 first bits */ ++ for (l = 0; l < 9; l++) { ++ if (*parse++ != lzop_magic[l]) ++ return 0; ++ } ++ /* get version (2bytes), skip library version (2), ++ * 'need to be extracted' version (2) and ++ * method (1) */ ++ version = get_unaligned_be16(parse); ++ parse += 7; ++ if (version >= 0x0940) ++ level = *parse++; ++ if (get_unaligned_be32(parse) & HEADER_HAS_FILTER) ++ parse += 8; /* flags + filter info */ ++ else ++ parse += 4; /* flags */ ++ ++ /* skip mode and mtime_low */ ++ parse += 8; ++ if (version >= 0x0940) ++ parse += 4; /* skip mtime_high */ ++ ++ l = *parse++; ++ /* don't care about the file name, and skip checksum */ ++ parse += l + 4; ++ ++ *skip = parse - input; ++ return 1; ++} ++ ++STATIC inline int INIT unlzo(u8 *input, int in_len, ++ int (*fill) (void *, unsigned int), ++ int (*flush) (void *, unsigned int), ++ u8 *output, int *posp, ++ void (*error_fn) (char *x)) ++{ ++ u8 skip = 0, r = 0; ++ u32 src_len, dst_len; ++ size_t tmp; ++ u8 *in_buf, *in_buf_save, *out_buf; ++ int obytes_processed = 0; ++ ++ set_error_fn(error_fn); ++ ++ if (output) ++ out_buf = output; ++ else if (!flush) { ++ error("NULL output pointer and no flush function provided"); ++ goto exit; ++ } else { ++ out_buf = malloc(LZO_BLOCK_SIZE); ++ if (!out_buf) { ++ error("Could not allocate output buffer"); ++ goto exit; ++ } ++ } ++ ++ if (input && fill) { ++ error("Both input pointer and fill function provided, don't know what to do"); ++ goto exit_1; ++ } else if (input) ++ in_buf = input; ++ else if (!fill || !posp) { ++ error("NULL input pointer and missing position pointer or fill function"); ++ goto exit_1; ++ } else { ++ in_buf = malloc(lzo1x_worst_compress(LZO_BLOCK_SIZE)); ++ if (!in_buf) { ++ error("Could not allocate input buffer"); ++ goto exit_1; ++ } ++ } ++ in_buf_save = in_buf; ++ ++ if (posp) ++ *posp = 0; ++ ++ if (fill) ++ fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE)); ++ ++ if (!parse_header(input, &skip)) { ++ error("invalid header"); ++ goto exit_2; ++ } ++ in_buf += skip; ++ ++ if (posp) ++ *posp = skip; ++ ++ for (;;) { ++ /* read uncompressed block size */ ++ dst_len = get_unaligned_be32(in_buf); ++ in_buf += 4; ++ ++ /* exit if last block */ ++ if (dst_len == 0) { ++ if (posp) ++ *posp += 4; ++ break; ++ } ++ ++ if (dst_len > LZO_BLOCK_SIZE) { ++ error("dest len longer than block size"); ++ goto exit_2; ++ } ++ ++ /* read compressed block size, and skip block checksum info */ ++ src_len = get_unaligned_be32(in_buf); ++ in_buf += 8; ++ ++ if (src_len <= 0 || src_len > dst_len) { ++ error("file corrupted"); ++ goto exit_2; ++ } ++ ++ /* decompress */ ++ tmp = dst_len; ++ r = lzo1x_decompress_safe((u8 *) in_buf, src_len, out_buf, &tmp); ++ ++ if (r != LZO_E_OK || dst_len != tmp) { ++ error("Compressed data violation"); ++ goto exit_2; ++ } ++ ++ obytes_processed += dst_len; ++ if (flush) ++ flush(out_buf, dst_len); ++ if (output) ++ out_buf += dst_len; ++ if (posp) ++ *posp += src_len + 12; ++ if (fill) { ++ in_buf = in_buf_save; ++ fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE)); ++ } else ++ in_buf += src_len; ++ } ++ ++exit_2: ++ if (!input) ++ free(in_buf); ++exit_1: ++ if (!output) ++ free(out_buf); ++exit: ++ return obytes_processed; ++} ++ ++#define decompress unlzo +diff --git a/lib/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c +index 5dc6b29..f2fd098 100644 +--- a/lib/lzo/lzo1x_decompress.c ++++ b/lib/lzo/lzo1x_decompress.c +@@ -11,11 +11,13 @@ + * Richard Purdie + */ + ++#ifndef STATIC + #include + #include +-#include +-#include ++#endif ++ + #include ++#include + #include "lzodefs.h" + + #define HAVE_IP(x, ip_end, ip) ((size_t)(ip_end - ip) < (x)) +@@ -244,9 +246,10 @@ lookbehind_overrun: + *out_len = op - out; + return LZO_E_LOOKBEHIND_OVERRUN; + } +- ++#ifndef STATIC + EXPORT_SYMBOL_GPL(lzo1x_decompress_safe); + + MODULE_LICENSE("GPL"); + MODULE_DESCRIPTION("LZO1X Decompressor"); + ++#endif +diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib +index ffdafb2..39c3483 100644 +--- a/scripts/Makefile.lib ++++ b/scripts/Makefile.lib +@@ -230,3 +230,8 @@ quiet_cmd_lzma = LZMA $@ + cmd_lzma = (cat $(filter-out FORCE,$^) | \ + lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) ++ ++quiet_cmd_lzo = LZO $@ ++cmd_lzo = (cat $(filter-out FORCE,$^) | \ ++ lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ ++ (rm -f $@ ; false) diff --git a/recipes/kexecboot/linux-kexecboot-2.6.32/v3-2-4-Add-support-for-LZO-compressed-kernels-for-ARM.patch b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-2-4-Add-support-for-LZO-compressed-kernels-for-ARM.patch new file mode 100644 index 0000000000..f155c0a1b5 --- /dev/null +++ b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-2-4-Add-support-for-LZO-compressed-kernels-for-ARM.patch @@ -0,0 +1,298 @@ +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 1c4119c..350921d 100644 +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -18,6 +18,8 @@ config ARM + select HAVE_KRETPROBES if (HAVE_KPROBES) + select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) + select HAVE_GENERIC_DMA_COHERENT ++ select HAVE_KERNEL_GZIP ++ select HAVE_KERNEL_LZO + help + The ARM series is a line of low-power-consumption RISC chip designs + licensed by ARM Ltd and targeted at embedded applications and +diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile +index ce39dc5..5b4629b 100644 +--- a/arch/arm/boot/compressed/Makefile ++++ b/arch/arm/boot/compressed/Makefile +@@ -63,8 +63,12 @@ endif + + SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ + +-targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \ +- head.o misc.o $(OBJS) ++suffix_$(CONFIG_KERNEL_GZIP) = gzip ++suffix_$(CONFIG_KERNEL_LZO) = lzo ++ ++targets := vmlinux vmlinux.lds \ ++ piggy.$(suffix_y) piggy.$(suffix_y).o \ ++ font.o font.c head.o misc.o $(OBJS) + + ifeq ($(CONFIG_FUNCTION_TRACER),y) + ORIG_CFLAGS := $(KBUILD_CFLAGS) +@@ -87,22 +91,31 @@ endif + ifneq ($(PARAMS_PHYS),) + LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS) + endif +-LDFLAGS_vmlinux += -p --no-undefined -X \ +- $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T ++# ? ++LDFLAGS_vmlinux += -p ++# Report unresolved symbol references ++LDFLAGS_vmlinux += --no-undefined ++# Delete all temporary local symbols ++LDFLAGS_vmlinux += -X ++# Next argument is a linker script ++LDFLAGS_vmlinux += -T ++ ++# For __aeabi_uidivmod ++lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o + + # Don't allow any static data in misc.o, which + # would otherwise mess up our GOT table + CFLAGS_misc.o := -Dstatic= + +-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \ +- $(addprefix $(obj)/, $(OBJS)) FORCE ++$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ ++ $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE + $(call if_changed,ld) + @: + +-$(obj)/piggy.gz: $(obj)/../Image FORCE +- $(call if_changed,gzip) ++$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE ++ $(call if_changed,$(suffix_y)) + +-$(obj)/piggy.o: $(obj)/piggy.gz FORCE ++$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE + + CFLAGS_font.o := -Dstatic= + +diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c +index 17153b5..7e0fe4d 100644 +--- a/arch/arm/boot/compressed/misc.c ++++ b/arch/arm/boot/compressed/misc.c +@@ -18,10 +18,15 @@ + + unsigned int __machine_arch_type; + ++#define _LINUX_STRING_H_ ++ + #include /* for inline */ + #include /* for size_t */ + #include /* for NULL */ + #include ++#include ++ ++#include + + #ifdef STANDALONE_DEBUG + #define putstr printf +@@ -188,34 +193,8 @@ static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src, + /* + * 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);} +@@ -233,24 +212,20 @@ static unsigned outcnt; /* bytes in output buffer */ + # define Tracecv(c,x) + #endif + +-static int fill_inbuf(void); +-static void flush_window(void); + static void error(char *m); + + extern char input_data[]; + extern char input_data_end[]; + +-static uch *output_data; +-static ulg output_ptr; +-static ulg bytes_out; ++static unsigned char *output_data; ++static unsigned long output_ptr; + + static void error(char *m); + + static void putstr(const char *); + +-extern int end; +-static ulg free_mem_ptr; +-static ulg free_mem_end_ptr; ++static unsigned long free_mem_ptr; ++static unsigned long free_mem_end_ptr; + + #ifdef STANDALONE_DEBUG + #define NO_INFLATE_MALLOC +@@ -258,46 +233,13 @@ static ulg free_mem_end_ptr; + + #define ARCH_HAS_DECOMP_WDOG + +-#include "../../../../lib/inflate.c" +- +-/* =========================================================================== +- * 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]; +-} ++#ifdef CONFIG_KERNEL_GZIP ++#include "../../../../lib/decompress_inflate.c" ++#endif + +-/* =========================================================================== +- * 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; +- putstr("."); +-} ++#ifdef CONFIG_KERNEL_LZO ++#include "../../../../lib/decompress_unlzo.c" ++#endif + + #ifndef arch_error + #define arch_error(x) +@@ -314,22 +256,33 @@ static void error(char *x) + while(1); /* Halt */ + } + ++asmlinkage void __div0(void) ++{ ++ error("Attempting division by 0!"); ++} ++ + #ifndef STANDALONE_DEBUG + +-ulg +-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p, +- int arch_id) ++unsigned long ++decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, ++ unsigned long free_mem_ptr_end_p, ++ int arch_id) + { +- output_data = (uch *)output_start; /* Points to kernel start */ ++ unsigned char *tmp; ++ ++ output_data = (unsigned char *)output_start; + free_mem_ptr = free_mem_ptr_p; + free_mem_end_ptr = free_mem_ptr_end_p; + __machine_arch_type = arch_id; + + arch_decomp_setup(); + +- makecrc(); ++ tmp = (unsigned char *) (((unsigned long)input_data_end) - 4); ++ output_ptr = get_unaligned_le32(tmp); ++ + putstr("Uncompressing Linux..."); +- gunzip(); ++ decompress(input_data, input_data_end - input_data, ++ NULL, NULL, output_data, NULL, error); + putstr(" done, booting the kernel.\n"); + return output_ptr; + } +@@ -341,11 +294,10 @@ int main() + { + output_data = output_buffer; + +- makecrc(); + putstr("Uncompressing Linux..."); +- gunzip(); ++ decompress(input_data, input_data_end - input_data, ++ NULL, NULL, output_data, NULL, error); + putstr("done.\n"); + return 0; + } + #endif +- +diff --git a/arch/arm/boot/compressed/piggy.S b/arch/arm/boot/compressed/piggy.S +deleted file mode 100644 +index 54c9518..0000000 +--- a/arch/arm/boot/compressed/piggy.S ++++ /dev/null +@@ -1,6 +0,0 @@ +- .section .piggydata,#alloc +- .globl input_data +-input_data: +- .incbin "arch/arm/boot/compressed/piggy.gz" +- .globl input_data_end +-input_data_end: +diff --git a/arch/arm/boot/compressed/piggy.gzip.S b/arch/arm/boot/compressed/piggy.gzip.S +new file mode 100644 +index 0000000..a68adf9 +--- /dev/null ++++ b/arch/arm/boot/compressed/piggy.gzip.S +@@ -0,0 +1,6 @@ ++ .section .piggydata,#alloc ++ .globl input_data ++input_data: ++ .incbin "arch/arm/boot/compressed/piggy.gzip" ++ .globl input_data_end ++input_data_end: +diff --git a/arch/arm/boot/compressed/piggy.lzo.S b/arch/arm/boot/compressed/piggy.lzo.S +new file mode 100644 +index 0000000..a425ad9 +--- /dev/null ++++ b/arch/arm/boot/compressed/piggy.lzo.S +@@ -0,0 +1,6 @@ ++ .section .piggydata,#alloc ++ .globl input_data ++input_data: ++ .incbin "arch/arm/boot/compressed/piggy.lzo" ++ .globl input_data_end ++input_data_end: diff --git a/recipes/kexecboot/linux-kexecboot-2.6.32/v3-3-4-Add-support-for-LZO-compressed-kernels-on-x86.patch b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-3-4-Add-support-for-LZO-compressed-kernels-on-x86.patch new file mode 100644 index 0000000000..bfefe8bfde --- /dev/null +++ b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-3-4-Add-support-for-LZO-compressed-kernels-on-x86.patch @@ -0,0 +1,54 @@ +diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig +index 72ace95..89f7771 100644 +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -49,6 +49,7 @@ config X86 + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_BZIP2 + select HAVE_KERNEL_LZMA ++ select HAVE_KERNEL_LZO + select HAVE_ARCH_KMEMCHECK + + config OUTPUT_FORMAT +diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile +index f8ed065..0e835d0 100644 +--- a/arch/x86/boot/compressed/Makefile ++++ b/arch/x86/boot/compressed/Makefile +@@ -4,7 +4,7 @@ + # create a compressed vmlinux image from the original vmlinux + # + +-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o ++targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo head_$(BITS).o misc.o piggy.o + + KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 + KBUILD_CFLAGS += -fno-strict-aliasing -fPIC +@@ -48,10 +48,13 @@ $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE + $(call if_changed,bzip2) + $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE + $(call if_changed,lzma) ++$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE ++ $(call if_changed,lzo) + + suffix-$(CONFIG_KERNEL_GZIP) := gz + suffix-$(CONFIG_KERNEL_BZIP2) := bz2 + suffix-$(CONFIG_KERNEL_LZMA) := lzma ++suffix-$(CONFIG_KERNEL_LZO) := lzo + + quiet_cmd_mkpiggy = MKPIGGY $@ + cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false ) +diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c +index 842b2a3..3b22fe8 100644 +--- a/arch/x86/boot/compressed/misc.c ++++ b/arch/x86/boot/compressed/misc.c +@@ -162,6 +162,10 @@ static int lines, cols; + #include "../../../../lib/decompress_unlzma.c" + #endif + ++#ifdef CONFIG_KERNEL_LZO ++#include "../../../../lib/decompress_unlzo.c" ++#endif ++ + static void scroll(void) + { + int i; diff --git a/recipes/kexecboot/linux-kexecboot-2.6.32/v3-4-4-Add-LZO-compression-support-for-initramfs-and-old-style-initrd.patch b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-4-4-Add-LZO-compression-support-for-initramfs-and-old-style-initrd.patch new file mode 100644 index 0000000000..f0d8ff39f9 --- /dev/null +++ b/recipes/kexecboot/linux-kexecboot-2.6.32/v3-4-4-Add-LZO-compression-support-for-initramfs-and-old-style-initrd.patch @@ -0,0 +1,114 @@ +diff --git a/lib/Kconfig b/lib/Kconfig +index bb1326d..8639349 100644 +--- a/lib/Kconfig ++++ b/lib/Kconfig +@@ -117,6 +117,10 @@ config DECOMPRESS_BZIP2 + config DECOMPRESS_LZMA + tristate + ++config DECOMPRESS_LZO ++ select LZO_DECOMPRESS ++ tristate ++ + # + # Generic allocator support is selected if needed + # +diff --git a/lib/Makefile b/lib/Makefile +index 2e78277..cfa4041 100644 +--- a/lib/Makefile ++++ b/lib/Makefile +@@ -69,6 +69,7 @@ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ + lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o + lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o + lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o ++lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o + + obj-$(CONFIG_TEXTSEARCH) += textsearch.o + obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o +diff --git a/lib/decompress.c b/lib/decompress.c +index d2842f5..a760681 100644 +--- a/lib/decompress.c ++++ b/lib/decompress.c +@@ -9,6 +9,7 @@ + #include + #include + #include ++#include + + #include + #include +@@ -22,6 +23,9 @@ + #ifndef CONFIG_DECOMPRESS_LZMA + # define unlzma NULL + #endif ++#ifndef CONFIG_DECOMPRESS_LZO ++# define unlzo NULL ++#endif + + static const struct compress_format { + unsigned char magic[2]; +@@ -32,6 +36,7 @@ static const struct compress_format { + { {037, 0236}, "gzip", gunzip }, + { {0x42, 0x5a}, "bzip2", bunzip2 }, + { {0x5d, 0x00}, "lzma", unlzma }, ++ { {0x89, 0x4c}, "lzo", unlzo }, + { {0, 0}, NULL, NULL } + }; + +diff --git a/usr/Kconfig b/usr/Kconfig +index 1c3039f..e2721f5 100644 +--- a/usr/Kconfig ++++ b/usr/Kconfig +@@ -72,6 +72,15 @@ config RD_LZMA + Support loading of a LZMA encoded initial ramdisk or cpio buffer + If unsure, say N. + ++config RD_LZO ++ bool "Support initial ramdisks compressed using LZO" if EMBEDDED ++ default !EMBEDDED ++ depends on BLK_DEV_INITRD ++ select DECOMPRESS_LZO ++ help ++ Support loading of a LZO encoded initial ramdisk or cpio buffer ++ If unsure, say N. ++ + choice + prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!="" + help +@@ -108,16 +117,15 @@ config INITRAMFS_COMPRESSION_GZIP + bool "Gzip" + depends on RD_GZIP + help +- The old and tried gzip compression. Its compression ratio is +- the poorest among the 3 choices; however its speed (both +- compression and decompression) is the fastest. ++ The old and tried gzip compression. It provides a good balance ++ between compression ratio and decompression speed. + + config INITRAMFS_COMPRESSION_BZIP2 + bool "Bzip2" + depends on RD_BZIP2 + help + Its compression ratio and speed is intermediate. +- Decompression speed is slowest among the three. The initramfs ++ Decompression speed is slowest among the four. The initramfs + size is about 10% smaller with bzip2, in comparison to gzip. + Bzip2 uses a large amount of memory. For modern kernels you + will need at least 8MB RAM or more for booting. +@@ -128,7 +136,15 @@ config INITRAMFS_COMPRESSION_LZMA + help + The most recent compression algorithm. + Its ratio is best, decompression speed is between the other +- two. Compression is slowest. The initramfs size is about 33% ++ three. Compression is slowest. The initramfs size is about 33% + smaller with LZMA in comparison to gzip. + ++config INITRAMFS_COMPRESSION_LZO ++ bool "LZO" ++ depends on RD_LZO ++ help ++ Its compression ratio is the poorest among the four. The kernel ++ size is about about 10% bigger than gzip; however its speed ++ (both compression and decompression) is the fastest. ++ + endchoice diff --git a/recipes/kexecboot/linux-kexecboot_2.6.32.bb b/recipes/kexecboot/linux-kexecboot_2.6.32.bb index ee446d798f..858deb4b5a 100644 --- a/recipes/kexecboot/linux-kexecboot_2.6.32.bb +++ b/recipes/kexecboot/linux-kexecboot_2.6.32.bb @@ -12,6 +12,11 @@ DEFAULT_PREFERENCE_spitz = "-1" DEFAULT_PREFERENCE_tosa = "-1" SRC_URI = "${KERNELORG_MIRROR}/pub/linux/kernel/v2.6/linux-${PV}.tar.bz2;name=kernel \ + file://v3-1-4-Add-support-for-LZO-compressed-kernels.patch;patch=1;status=pending \ + file://v3-2-4-Add-support-for-LZO-compressed-kernels-for-ARM.patch;patch=1;status=pending \ + file://v3-3-4-Add-support-for-LZO-compressed-kernels-on-x86.patch;patch=1;status=pending \ + file://v3-4-4-Add-LZO-compression-support-for-initramfs-and-old-style-initrd.patch;patch=1;status=pending \ + file://ARM-Add-support-for-LZMA-compressed-kernel-images.patch;patch=1;status=pending \ file://defconfig" SRC_URI[kernel.md5sum] = "260551284ac224c3a43c4adac7df4879" -- cgit v1.2.3