1 // SPDX-License-Identifier: GPL-2.0
3 #include <linux/coredump.h>
10 Elf32_Half elf_core_extra_phdrs(void)
12 return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
15 int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
17 if ( vsyscall_ehdr ) {
18 const struct elfhdr *const ehdrp =
19 (struct elfhdr *) vsyscall_ehdr;
20 const struct elf_phdr *const phdrp =
21 (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
25 for (i = 0; i < ehdrp->e_phnum; ++i) {
26 struct elf_phdr phdr = phdrp[i];
28 if (phdr.p_type == PT_LOAD) {
29 ofs = phdr.p_offset = offset;
30 offset += phdr.p_filesz;
34 phdr.p_paddr = 0; /* match other core phdrs */
35 if (!dump_emit(cprm, &phdr, sizeof(phdr)))
42 int elf_core_write_extra_data(struct coredump_params *cprm)
44 if ( vsyscall_ehdr ) {
45 const struct elfhdr *const ehdrp =
46 (struct elfhdr *) vsyscall_ehdr;
47 const struct elf_phdr *const phdrp =
48 (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
51 for (i = 0; i < ehdrp->e_phnum; ++i) {
52 if (phdrp[i].p_type == PT_LOAD) {
53 void *addr = (void *) phdrp[i].p_vaddr;
54 size_t filesz = phdrp[i].p_filesz;
55 if (!dump_emit(cprm, addr, filesz))
63 size_t elf_core_extra_data_size(void)
65 if ( vsyscall_ehdr ) {
66 const struct elfhdr *const ehdrp =
67 (struct elfhdr *)vsyscall_ehdr;
68 const struct elf_phdr *const phdrp =
69 (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
72 for (i = 0; i < ehdrp->e_phnum; ++i)
73 if (phdrp[i].p_type == PT_LOAD)
74 return (size_t) phdrp[i].p_filesz;