Release 4.16 arch/sh/boot/compressed/misc.c
// SPDX-License-Identifier: GPL-2.0
/*
* arch/sh/boot/compressed/misc.c
*
* This is a collection of several routines from gzip-1.0.3
* adapted for Linux.
*
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
*
* Adapted for SH by Stuart Menefy, Aug 1999
*
* Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
*/
#include <linux/uaccess.h>
#include <asm/addrspace.h>
#include <asm/page.h>
/*
* gzip declarations
*/
#define STATIC static
#undef memset
#undef memcpy
#define memzero(s, n) memset ((s), 0, (n))
/* cache.c */
#define CACHE_ENABLE 0
#define CACHE_DISABLE 1
int cache_control(unsigned int command);
extern char input_data[];
extern int input_len;
static unsigned char *output;
static void error(char *m);
int puts(const char *);
extern int _text; /* Defined in vmlinux.lds.S */
extern int _end;
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#define HEAP_SIZE 0x400000
#else
#define HEAP_SIZE 0x10000
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
#ifdef CONFIG_KERNEL_XZ
#include "../../../../lib/decompress_unxz.c"
#endif
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
int puts(const char *s)
{
/* This should be updated to use the sh-sci routines */
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 10 | 71.43% | 1 | 50.00% |
| Andrew Morton | 4 | 28.57% | 1 | 50.00% |
| Total | 14 | 100.00% | 2 | 100.00% |
void* memset(void* s, int c, size_t n)
{
int i;
char *ss = (char*)s;
for (i=0;i<n;i++) ss[i] = c;
return s;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
void* memcpy(void* __dest, __const void* __src,
size_t __n)
{
int i;
char *d = (char *)__dest, *s = (char *)__src;
for (i=0;i<__n;i++) d[i] = s[i];
return __dest;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 66 | 100.00% | 1 | 100.00% |
| Total | 66 | 100.00% | 1 | 100.00% |
static void error(char *x)
{
puts("\n\n");
puts(x);
puts("\n\n -- System halted");
while(1); /* Halt */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
unsigned long __stack_chk_guard;
void __stack_chk_guard_setup(void)
{
__stack_chk_guard = 0x000a0dff;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kees Cook | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
void __stack_chk_fail(void)
{
error("stack-protector: Kernel stack is corrupted\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kees Cook | 12 | 100.00% | 1 | 100.00% |
| Total | 12 | 100.00% | 1 | 100.00% |
#ifdef CONFIG_SUPERH64
#define stackalign 8
#else
#define stackalign 4
#endif
#define STACK_SIZE (4096)
long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE];
long *stack_start = &user_stack[STACK_SIZE];
void decompress_kernel(void)
{
unsigned long output_addr;
__stack_chk_guard_setup();
#ifdef CONFIG_SUPERH64
output_addr = (CONFIG_MEMORY_START + 0x2000);
#else
output_addr = __pa((unsigned long)&_text+PAGE_SIZE);
#if defined(CONFIG_29BIT)
output_addr |= P2SEG;
#endif
#endif
output = (unsigned char *)output_addr;
free_mem_ptr = (unsigned long)&_end;
free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
puts("Uncompressing Linux... ");
cache_control(CACHE_ENABLE);
__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
cache_control(CACHE_DISABLE);
puts("Ok, booting the kernel.\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Paul Mundt | 56 | 47.46% | 4 | 36.36% |
| Linus Torvalds (pre-git) | 42 | 35.59% | 1 | 9.09% |
| Stuart Menefy | 6 | 5.08% | 1 | 9.09% |
| Nobuhiro Iwamatsu | 5 | 4.24% | 1 | 9.09% |
| Kees Cook | 3 | 2.54% | 1 | 9.09% |
| Yinghai Lu | 3 | 2.54% | 1 | 9.09% |
| Yoshinori Sato | 2 | 1.69% | 1 | 9.09% |
| Matt Fleming | 1 | 0.85% | 1 | 9.09% |
| Total | 118 | 100.00% | 11 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 301 | 59.49% | 2 | 11.11% |
| Paul Mundt | 147 | 29.05% | 7 | 38.89% |
| Kees Cook | 30 | 5.93% | 1 | 5.56% |
| Stuart Menefy | 6 | 1.19% | 1 | 5.56% |
| Andrew Morton | 6 | 1.19% | 1 | 5.56% |
| Yoshinori Sato | 5 | 0.99% | 1 | 5.56% |
| Nobuhiro Iwamatsu | 5 | 0.99% | 1 | 5.56% |
| Yinghai Lu | 3 | 0.59% | 1 | 5.56% |
| Matt Fleming | 1 | 0.20% | 1 | 5.56% |
| Linus Torvalds | 1 | 0.20% | 1 | 5.56% |
| Greg Kroah-Hartman | 1 | 0.20% | 1 | 5.56% |
| Total | 506 | 100.00% | 18 | 100.00% |
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