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6e8699f7d6
This patch allows using a kernel image compressed with LZMA on ARM. Extracting the image is fairly slow, but it might be useful on machines with a very limited amount of storage, as the size benefit is quite significant (about 25% smaller with LZMA compared to GZIP) Tested-by: Martin Michlmayr <tbm@cyrius.com> Tested-by: Paulius Zaleckas <paulius.zaleckas@gmail.com> Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#define _LINUX_STRING_H_
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#include <linux/compiler.h> /* for inline */
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#include <linux/types.h> /* for size_t */
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#include <linux/stddef.h> /* for NULL */
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#include <linux/linkage.h>
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#include <asm/string.h>
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extern unsigned long free_mem_ptr;
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extern unsigned long free_mem_end_ptr;
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extern void error(char *);
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#define STATIC static
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#define STATIC_RW_DATA /* non-static please */
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#define ARCH_HAS_DECOMP_WDOG
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/* Diagnostic functions */
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#ifdef DEBUG
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# define Assert(cond,msg) {if(!(cond)) error(msg);}
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# define Trace(x) fprintf x
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# define Tracev(x) {if (verbose) fprintf x ;}
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# define Tracevv(x) {if (verbose>1) fprintf x ;}
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# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
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# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
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#else
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# define Assert(cond,msg)
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# define Trace(x)
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# define Tracev(x)
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# define Tracevv(x)
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# define Tracec(c,x)
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# define Tracecv(c,x)
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#endif
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#ifdef CONFIG_KERNEL_GZIP
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#include "../../../../lib/decompress_inflate.c"
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#endif
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#ifdef CONFIG_KERNEL_LZO
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#include "../../../../lib/decompress_unlzo.c"
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#endif
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#ifdef CONFIG_KERNEL_LZMA
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#include "../../../../lib/decompress_unlzma.c"
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#endif
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void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
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{
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decompress(input, len, NULL, NULL, output, NULL, error);
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}
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