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additions and mods for lzma.

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Signed-off-by: Carl-Daniel Hailfinger
Signed-off-by: Ronald G. Minnich


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2413 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Carl-Daniel Hailfinger
2006-09-14 15:12:36 +00:00
committed by Ronald G. Minnich
parent 7d9441276f
commit cba07dd682
16 changed files with 578 additions and 18 deletions
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47
src/stream/rom_stream.c
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@@ -4,10 +4,30 @@
#include <stream/read_bytes.h>
#include <string.h>
#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
/* if they set the precompressed rom stream, they better have set a type */
#if CONFIG_PRECOMPRESSED_ROM_STREAM && ((!CONFIG_COMPRESSED_ROM_STREAM) && (!CONFIG_COMPRESSED_ROM_STREAM_NRV2B) && (!CONFIG_COMPRESSED_ROM_STREAM_LZMA))
#error "You set CONFIG_PRECOMPRESSED_ROM_STREAM but need to set CONFIG_COMPRESSED_ROM_STREAM (implies NRV2B, deprecated) or CONFIG_COMPRESSED_ROM_STREAM_NRV2B or CONFIG_COMPRESSED_ROM_STREAM_LZMA
#endif
/* If they set ANY of these, then we're compressed */
#if ((CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B) || (CONFIG_COMPRESSED_ROM_STREAM_LZMA))
#define UNCOMPRESSER 1
extern unsigned char _heap, _eheap;
#endif
#if (CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B)
#define HAVE_UNCOMPRESSER 1
// include generic nrv2b
#include "../lib/nrv2b.c"
extern unsigned char _heap, _eheap;
#endif
#if (CONFIG_COMPRESSED_ROM_STREAM_LZMA)
#if HAVE_UNCOMPRESSER
#error "You're defining more than one compression type, which is not allowed (of course)"
#endif
#define HAVE_UNCOMPRESSER 1
// include generic nrv2b
#include "../lib/lzma.c"
#endif
#ifndef CONFIG_ROM_STREAM_START
@@ -29,9 +49,21 @@ extern unsigned char _heap, _eheap;
static const unsigned char *rom;
#if UNCOMPRESSER
unsigned long
uncompress(uint8_t * rom_start, uint8_t *dest )
{
#if (CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B)
return unrv2b(rom_start, dest);
#endif
#if (CONFIG_COMPRESSED_ROM_STREAM_LZMA)
return ulzma(rom_start, dest);
#endif
}
#endif
int stream_init(void)
{
#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
#if (UNCOMPRESSER)
unsigned char *dest;
unsigned long olen;
#endif
@@ -40,7 +72,7 @@ int stream_init(void)
(unsigned long)rom_start,
(unsigned long)rom_end);
#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
#if (UNCOMPRESSER)
dest = &_eheap; /* need a good address on RAM */
@@ -56,8 +88,13 @@ int stream_init(void)
}
#endif
/* ALL of those settings are too smart and also unsafe. Set the dest to 16 MB:
* known to be safe for LB for now, and mostly safe for all elf images we have tried.
* long term, this has got to be fixed.
*/
dest = (unsigned char *) (16 * 1024 * 1024);
printk_debug("Uncompressing to RAM 0x%08lx ", dest);
olen = unrv2b((uint8_t *) rom_start, (uint8_t *)dest );
olen = uncompress((uint8_t *) rom_start, (uint8_t *)dest );
printk_debug(" olen = 0x%08lx done.\n", olen);
rom_end = dest + olen - 1;
rom = dest;