projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | } |