blob: 04bc8fd5f893ed3dacd7ff487257277c193de571 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#include <linux/elf.h>
#include <linux/coredump.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <asm/elf.h>
Elf64_Half elf_core_extra_phdrs(void)
{
return GATE_EHDR->e_phnum;
}
int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
{
const struct elf_phdr *const gate_phdrs =
(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
int i;
Elf64_Off ofs = 0;
for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
struct elf_phdr phdr = gate_phdrs[i];
if (phdr.p_type == PT_LOAD) {
phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);
phdr.p_filesz = phdr.p_memsz;
if (ofs == 0) {
ofs = phdr.p_offset = offset;
offset += phdr.p_filesz;
} else {
phdr.p_offset = ofs;
}
} else {
phdr.p_offset += ofs;
}
phdr.p_paddr = 0; /* match other core phdrs */
if (!dump_emit(cprm, &phdr, sizeof(phdr)))
return 0;
}
return 1;
}
int elf_core_write_extra_data(struct coredump_params *cprm)
{
const struct elf_phdr *const gate_phdrs =
(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
int i;
for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
if (gate_phdrs[i].p_type == PT_LOAD) {
void *addr = (void *)gate_phdrs[i].p_vaddr;
size_t memsz = PAGE_ALIGN(gate_phdrs[i].p_memsz);
if (!dump_emit(cprm, addr, memsz))
return 0;
break;
}
}
return 1;
}
size_t elf_core_extra_data_size(void)
{
const struct elf_phdr *const gate_phdrs =
(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
int i;
size_t size = 0;
for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
if (gate_phdrs[i].p_type == PT_LOAD) {
size += PAGE_ALIGN(gate_phdrs[i].p_memsz);
break;
}
}
return size;
}
|
