LXR linux/arch/ia64/kernel/elfcore.c

   1#include <linux/elf.h>
   2#include <linux/coredump.h>
   3#include <linux/fs.h>
   4#include <linux/mm.h>
   5
   6#include <asm/elf.h>
   7
   8
   9Elf64_Half elf_core_extra_phdrs(void)
  10{
  11        return GATE_EHDR->e_phnum;
  12}
  13
  14int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
  15{
  16        const struct elf_phdr *const gate_phdrs =
  17                (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
  18        int i;
  19        Elf64_Off ofs = 0;
  20
  21        for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
  22                struct elf_phdr phdr = gate_phdrs[i];
  23
  24                if (phdr.p_type == PT_LOAD) {
  25                        phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);
  26                        phdr.p_filesz = phdr.p_memsz;
  27                        if (ofs == 0) {
  28                                ofs = phdr.p_offset = offset;
  29                                offset += phdr.p_filesz;
  30                        } else {
  31                                phdr.p_offset = ofs;
  32                        }
  33                } else {
  34                        phdr.p_offset += ofs;
  35                }
  36                phdr.p_paddr = 0; /* match other core phdrs */
  37                if (!dump_emit(cprm, &phdr, sizeof(phdr)))
  38                        return 0;
  39        }
  40        return 1;
  41}
  42
  43int elf_core_write_extra_data(struct coredump_params *cprm)
  44{
  45        const struct elf_phdr *const gate_phdrs =
  46                (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
  47        int i;
  48
  49        for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
  50                if (gate_phdrs[i].p_type == PT_LOAD) {
  51                        void *addr = (void *)gate_phdrs[i].p_vaddr;
  52                        size_t memsz = PAGE_ALIGN(gate_phdrs[i].p_memsz);
  53
  54                        if (!dump_emit(cprm, addr, memsz))
  55                                return 0;
  56                        break;
  57                }
  58        }
  59        return 1;
  60}
  61
  62size_t elf_core_extra_data_size(void)
  63{
  64        const struct elf_phdr *const gate_phdrs =
  65                (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
  66        int i;
  67        size_t size = 0;
  68
  69        for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
  70                if (gate_phdrs[i].p_type == PT_LOAD) {
  71                        size += PAGE_ALIGN(gate_phdrs[i].p_memsz);
  72                        break;
  73                }
  74        }
  75        return size;
  76}
  77