Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Martin Schwidefsky |
104 |
45.02% |
2 |
10.53% |
| Vasily Gorbik |
65 |
28.14% |
7 |
36.84% |
| Heiko Carstens |
28 |
12.12% |
3 |
15.79% |
| Dimitri John Ledkov |
12 |
5.19% |
1 |
5.26% |
| Masahiro Yamada |
8 |
3.46% |
1 |
5.26% |
| Mikhail Zaslonko |
5 |
2.16% |
1 |
5.26% |
| Marcelo H. Cerri |
3 |
1.30% |
1 |
5.26% |
| Alexander Gordeev |
3 |
1.30% |
1 |
5.26% |
| Yinghai Lu |
2 |
0.87% |
1 |
5.26% |
| Greg Kroah-Hartman |
1 |
0.43% |
1 |
5.26% |
| Total |
231 |
|
19 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* Definitions and wrapper functions for kernel decompressor
*
* Copyright IBM Corp. 2010
*
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/page.h>
#include "decompressor.h"
#include "boot.h"
/*
* gzip declarations
*/
#define STATIC static
#undef memset
#undef memcpy
#undef memmove
#define memmove memmove
#define memzero(s, n) memset((s), 0, (n))
#if defined(CONFIG_KERNEL_BZIP2)
#define BOOT_HEAP_SIZE 0x400000
#elif defined(CONFIG_KERNEL_ZSTD)
#define BOOT_HEAP_SIZE 0x30000
#else
#define BOOT_HEAP_SIZE 0x10000
#endif
static unsigned long free_mem_ptr = (unsigned long) _end;
static unsigned long free_mem_end_ptr = (unsigned long) _end + BOOT_HEAP_SIZE;
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZ4
#include "../../../../lib/decompress_unlz4.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
#ifdef CONFIG_KERNEL_XZ
#include "../../../../lib/decompress_unxz.c"
#endif
#ifdef CONFIG_KERNEL_ZSTD
#include "../../../../lib/decompress_unzstd.c"
#endif
#define decompress_offset ALIGN((unsigned long)_end + BOOT_HEAP_SIZE, PAGE_SIZE)
unsigned long mem_safe_offset(void)
{
/*
* due to 4MB HEAD_SIZE for bzip2
* 'decompress_offset + vmlinux.image_size' could be larger than
* kernel at final position + its .bss, so take the larger of two
*/
return max(decompress_offset + vmlinux.image_size,
vmlinux.default_lma + vmlinux.image_size + vmlinux.bss_size);
}
void *decompress_kernel(void)
{
void *output = (void *)decompress_offset;
__decompress(_compressed_start, _compressed_end - _compressed_start,
NULL, NULL, output, vmlinux.image_size, NULL, error);
return output;
}