d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
123 lines
2.3 KiB
C
123 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* linux/arch/unicore32/boot/compressed/misc.c
|
|
*
|
|
* Code specific to PKUnity SoC and UniCore ISA
|
|
*
|
|
* Copyright (C) 2001-2010 GUAN Xue-tao
|
|
*/
|
|
|
|
#include <asm/unaligned.h>
|
|
#include <mach/uncompress.h>
|
|
|
|
/*
|
|
* gzip delarations
|
|
*/
|
|
unsigned char *output_data;
|
|
unsigned long output_ptr;
|
|
|
|
unsigned int free_mem_ptr;
|
|
unsigned int free_mem_end_ptr;
|
|
|
|
#define STATIC static
|
|
#define STATIC_RW_DATA /* non-static please */
|
|
|
|
/*
|
|
* arch-dependent implementations
|
|
*/
|
|
#ifndef ARCH_HAVE_DECOMP_ERROR
|
|
#define arch_decomp_error(x)
|
|
#endif
|
|
|
|
#ifndef ARCH_HAVE_DECOMP_SETUP
|
|
#define arch_decomp_setup()
|
|
#endif
|
|
|
|
#ifndef ARCH_HAVE_DECOMP_PUTS
|
|
#define arch_decomp_puts(p)
|
|
#endif
|
|
|
|
void *memcpy(void *dest, const void *src, size_t n)
|
|
{
|
|
int i = 0;
|
|
unsigned char *d = (unsigned char *)dest, *s = (unsigned char *)src;
|
|
|
|
for (i = n >> 3; i > 0; i--) {
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
}
|
|
|
|
if (n & 1 << 2) {
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
}
|
|
|
|
if (n & 1 << 1) {
|
|
*d++ = *s++;
|
|
*d++ = *s++;
|
|
}
|
|
|
|
if (n & 1)
|
|
*d++ = *s++;
|
|
|
|
return dest;
|
|
}
|
|
|
|
void error(char *x)
|
|
{
|
|
arch_decomp_puts("\n\n");
|
|
arch_decomp_puts(x);
|
|
arch_decomp_puts("\n\n -- System halted");
|
|
|
|
arch_decomp_error(x);
|
|
|
|
for (;;)
|
|
; /* Halt */
|
|
}
|
|
|
|
/* Heap size should be adjusted for different decompress method */
|
|
#ifdef CONFIG_KERNEL_GZIP
|
|
#include "../../../../lib/decompress_inflate.c"
|
|
#endif
|
|
|
|
#ifdef CONFIG_KERNEL_BZIP2
|
|
#include "../../../../lib/decompress_bunzip2.c"
|
|
#endif
|
|
|
|
#ifdef CONFIG_KERNEL_LZO
|
|
#include "../../../../lib/decompress_unlzo.c"
|
|
#endif
|
|
|
|
#ifdef CONFIG_KERNEL_LZMA
|
|
#include "../../../../lib/decompress_unlzma.c"
|
|
#endif
|
|
|
|
unsigned long decompress_kernel(unsigned long output_start,
|
|
unsigned long free_mem_ptr_p,
|
|
unsigned long free_mem_ptr_end_p)
|
|
{
|
|
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;
|
|
|
|
arch_decomp_setup();
|
|
|
|
tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
|
|
output_ptr = get_unaligned_le32(tmp);
|
|
|
|
arch_decomp_puts("Uncompressing Linux...");
|
|
__decompress(input_data, input_data_end - input_data, NULL, NULL,
|
|
output_data, 0, NULL, error);
|
|
arch_decomp_puts(" done, booting the kernel.\n");
|
|
return output_ptr;
|
|
}
|