Commit | Line | Data |
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1fcccbac DH |
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 | ||
9 | Elf32_Half elf_core_extra_phdrs(void) | |
10 | { | |
11 | return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0; | |
12 | } | |
13 | ||
506f21c5 | 14 | int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset) |
1fcccbac DH |
15 | { |
16 | if ( vsyscall_ehdr ) { | |
17 | const struct elfhdr *const ehdrp = | |
18 | (struct elfhdr *) vsyscall_ehdr; | |
19 | const struct elf_phdr *const phdrp = | |
20 | (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); | |
21 | int i; | |
22 | Elf32_Off ofs = 0; | |
23 | ||
24 | for (i = 0; i < ehdrp->e_phnum; ++i) { | |
25 | struct elf_phdr phdr = phdrp[i]; | |
26 | ||
27 | if (phdr.p_type == PT_LOAD) { | |
28 | ofs = phdr.p_offset = offset; | |
29 | offset += phdr.p_filesz; | |
30 | } else { | |
31 | phdr.p_offset += ofs; | |
32 | } | |
33 | phdr.p_paddr = 0; /* match other core phdrs */ | |
506f21c5 | 34 | if (!dump_emit(cprm, &phdr, sizeof(phdr))) |
1fcccbac DH |
35 | return 0; |
36 | } | |
37 | } | |
38 | return 1; | |
39 | } | |
40 | ||
aa3e7eaf | 41 | int elf_core_write_extra_data(struct coredump_params *cprm) |
1fcccbac DH |
42 | { |
43 | if ( vsyscall_ehdr ) { | |
44 | const struct elfhdr *const ehdrp = | |
45 | (struct elfhdr *) vsyscall_ehdr; | |
46 | const struct elf_phdr *const phdrp = | |
47 | (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); | |
48 | int i; | |
49 | ||
50 | for (i = 0; i < ehdrp->e_phnum; ++i) { | |
51 | if (phdrp[i].p_type == PT_LOAD) { | |
52 | void *addr = (void *) phdrp[i].p_vaddr; | |
53 | size_t filesz = phdrp[i].p_filesz; | |
aa3e7eaf | 54 | if (!dump_emit(cprm, addr, filesz)) |
1fcccbac DH |
55 | return 0; |
56 | } | |
57 | } | |
58 | } | |
59 | return 1; | |
60 | } | |
8d9032bb DH |
61 | |
62 | size_t elf_core_extra_data_size(void) | |
63 | { | |
64 | if ( vsyscall_ehdr ) { | |
65 | const struct elfhdr *const ehdrp = | |
66 | (struct elfhdr *)vsyscall_ehdr; | |
67 | const struct elf_phdr *const phdrp = | |
68 | (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); | |
69 | int i; | |
70 | ||
71 | for (i = 0; i < ehdrp->e_phnum; ++i) | |
72 | if (phdrp[i].p_type == PT_LOAD) | |
73 | return (size_t) phdrp[i].p_filesz; | |
74 | } | |
75 | return 0; | |
76 | } |