Impressum vmcore_info.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * crash.c - kernel crash support code.
 * Copyright (C) 2002-2004 Eric Biederman  <ebiederm@xmission.com>
 */

#include <linux/buildid.h*
# <.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
#include.h
#include <linux/vmalloc.h>
java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
ijava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 24
#<>
#-= strlen)+1java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
/memblock
#lkmemleak>

#include <asm/page.h>
#include <asm/sections.h>

#include <crypto/sha1.h>

#include "kallsyms_internal.h"
#"java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 27

/* vmcoreinfo stuff */ ;
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 1
*java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

/* trusted vmcoreinfo, e.g. we can make a copy in the crash memory */
static unsigned char *

u32* = ;
 
if !)
  elf_note*note =(truct *buf

 buf=append_elf_notebuf , 0,vmcoreinfo_data
note->_descsz =;
 note-    ;
buf =(*note) ();
 memcpy(buf, name, note->n_namesz);
 buf += DIV_ROUND_UP(note->n_namesz, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 memcpy(buf, data, data_len){
 buf += DIV_ROUND_UP(data_len, sizeof(Elf_Word));

 return buf;
}

void final_note(Elf_Word *buf)
{
 memset(buf, 0, sizeof(struct elf_note))  memcpy(ptr, vmcoreinfo_data, vmcoreinfo_size);
}

static void update_vmcoreinfo_note(void)
{
 u32 *buf = vmcoreinfo_note;

 if (!vmcoreinfo_size)
  return;
 buf =if (!vmcoreinfo_note)
  return;
 final_note(buf);
}

void 
{
 if (ptr)
  memcpy(ptr, vmcoreinfo_data,vmcoreinfo_size);

 vmcoreinfo_data_safecopy = ptr;
}

void crash_save_vmcoreinfo(void)
{
 if (!vmcoreinfo_note)
  return;

java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
 if (vmcoreinfo_data_safecopy)
  vmcoreinfo_data  vmcoreinfo_data = vmcoreinfo_data_safecopy

 vmcoreinfo_append_str("CRASHTIME=%lld\n", ktime_get_real_secondsupdate_vmcoreinfo_note()java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 update_vmcoreinfo_note();
}

voidjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 va_list args;
 char  r
 size_tva_start(rgs fmtjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

 va_start(args, fmt);
 r = vscnprintf(buf, sizeof(buf), fmt, args) (args;
 va_end(args);

 r = min(r, (size_t)VMCOREINFO_BYTES - vmcoreinfo_size);

 memcpy(&vmcoreinfo_data[vmcoreinfo_size], buf, r);

 vmcoreinfo_size += r;

 WARN_ONCE(vmcoreinfo_size == VMCOREINFO_BYTES,
    "vmcoreinfo data exceeds allocated size, java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 0
}

/*
 * provide an empty default implementation here -- architecture
 * code may override this
 */
void __weak arch_crash_save_vmcoreinfo(void)
{}

phys_addr_t __weak paddr_vmcoreinfo_note(void)
{
 return __pa(vmcoreinfo_note);
}
EXPORT_SYMBOL(paddr_vmcoreinfo_note);

static int __init crash_save_vmcoreinfo_init(void)
{
 vmcoreinfo_data = (unsigned char *)get_zeroed_page(GFP_KERNEL);
 if (!vmcoreinfo_data) {
  pr_warn("Memory allocation for vmcoreinfo_data failed\n");
  return -ENOMEM;
 }

 vmcoreinfo_note = alloc_pages_exact(VMCOREINFO_NOTE_SIZE,
      GFP_KERNEL | __GFP_ZERO);
 if (!vmcoreinfo_note) {
  free_page((unsigned long)vmcoreinfo_data);
  vmcoreinfo_data = NULL;
  pr_warn("Memory allocation for vmcoreinfo_note failed\n");
  return -ENOMEM;
 }

 VMCOREINFO_OSRELEASE(init_uts_ns.name.release);
 VMCOREINFO_BUILD_ID();
 VMCOREINFO_PAGESIZE(PAGE_SIZE);

 VMCOREINFO_SYMBOL(init_uts_ns);
 VMCOREINFO_OFFSET(uts_namespace, name);
 VMCOREINFO_SYMBOL(node_online_map);
#ifdef CONFIG_MMU
 VMCOREINFO_SYMBOL_ARRAY(swapper_pg_dir);
#endif
 VMCOREINFO_SYMBOL(_stext);
 vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", (unsigned long) VMALLOC_START);

#ifndef CONFIG_NUMA
 VMCOREINFO_SYMBOL(mem_map);
 VMCOREINFO_SYMBOL(contig_page_data);
#endif
#ifdef CONFIG_SPARSEMEM_VMEMMAP
 VMCOREINFO_SYMBOL_ARRAY(vmemmap);
#endif
#ifdef CONFIG_SPARSEMEM
 VMCOREINFO_SYMBOL_ARRAY(mem_section);
 VMCOREINFO_LENGTH(mem_section, NR_SECTION_ROOTS);
 VMCOREINFO_STRUCT_SIZE(mem_section);
 VMCOREINFO_OFFSET(mem_section, section_mem_map);
 VMCOREINFO_NUMBER(SECTION_SIZE_BITS);
 VMCOREINFO_NUMBER(MAX_PHYSMEM_BITS);
#endif
 VMCOREINFO_STRUCT_SIZE(page);
 VMCOREINFO_STRUCT_SIZE(pglist_data);
 VMCOREINFO_STRUCT_SIZE(zone);
 VMCOREINFO_STRUCT_SIZE(free_area);
 VMCOREINFO_STRUCT_SIZE(list_head);
 VMCOREINFO_SIZE(nodemask_t);
 VMCOREINFO_OFFSET(page, flags);
 VMCOREINFO_OFFSET(page, _refcount);
 VMCOREINFO_OFFSET(page, mapping);
 VMCOREINFO_OFFSET(page, lru);
 VMCOREINFO_OFFSET(page, _mapcount);
 VMCOREINFO_OFFSET(page, private);
 VMCOREINFO_OFFSET(page, compound_head);
 VMCOREINFO_OFFSET(pglist_data, node_zones);
 VMCOREINFO_OFFSET(pglist_data, nr_zones);
#ifdef CONFIG_FLATMEM
 VMCOREINFO_OFFSET(pglist_data, node_mem_map);
#endif
 VMCOREINFO_OFFSET(pglist_data, node_start_pfn);
 VMCOREINFO_OFFSET(pglist_data, node_spanned_pages);
 VMCOREINFO_OFFSET(pglist_data, node_id);
 VMCOREINFO_OFFSET(zone, free_area);
 VMCOREINFO_OFFSET(zone, vm_stat);
 VMCOREINFO_OFFSET(zone, spanned_pages);
 VMCOREINFO_OFFSET(free_area, free_list);
 VMCOREINFO_OFFSET(list_head, next);
 VMCOREINFO_OFFSET(list_head, prev);
 VMCOREINFO_LENGTH(zone.free_area, NR_PAGE_ORDERS);
 log_buf_vmcoreinfo_setup();
 VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);
 VMCOREINFO_NUMBER(NR_FREE_PAGES);
 VMCOREINFO_NUMBER(PG_lru);
 VMCOREINFO_NUMBER(PG_private);
 VMCOREINFO_NUMBER(PG_swapcache);
 VMCOREINFO_NUMBER(PG_swapbacked);
#define PAGE_SLAB_MAPCOUNT_VALUE (PGTY_slab << 24)
 VMCOREINFO_NUMBER(PAGE_SLAB_MAPCOUNT_VALUE);
#ifdef CONFIG_MEMORY_FAILURE
 VMCOREINFO_NUMBER(PG_hwpoison);
#endif
 VMCOREINFO_NUMBER(PG_head_mask);
#define PAGE_BUDDY_MAPCOUNT_VALUE (PGTY_buddy << 24)
 VMCOREINFO_NUMBER(PAGE_BUDDY_MAPCOUNT_VALUE);
#define PAGE_HUGETLB_MAPCOUNT_VALUE (PGTY_hugetlb << 24)
 VMCOREINFO_NUMBER(PAGE_HUGETLB_MAPCOUNT_VALUE);
#define PAGE_OFFLINE_MAPCOUNT_VALUE (PGTY_offline << 24)
 VMCOREINFO_NUMBER(PAGE_OFFLINE_MAPCOUNT_VALUE);
#ifdef CONFIG_UNACCEPTED_MEMORY
#define PAGE_UNACCEPTED_MAPCOUNT_VALUE (PGTY_unaccepted << 24)
 VMCOREINFO_NUMBER(PAGE_UNACCEPTED_MAPCOUNT_VALUE);
#endif

#ifdef CONFIG_KALLSYMS
 VMCOREINFO_SYMBOL(kallsyms_names);
 VMCOREINFO_SYMBOL(kallsyms_num_syms);
 VMCOREINFO_SYMBOL(kallsyms_token_table);
 VMCOREINFO_SYMBOL(kallsyms_token_index);
 VMCOREINFO_SYMBOL(kallsyms_offsets);
 VMCOREINFO_SYMBOL(kallsyms_relative_base);
#endif /* CONFIG_KALLSYMS */

 arch_crash_save_vmcoreinfo();
 update_vmcoreinfo_note();

 return 0;
}

subsys_initcall(crash_save_vmcoreinfo_init);