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77 lines
1.8 KiB
77 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#include <linux/elf.h> |
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#include <linux/coredump.h> |
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#include <linux/fs.h> |
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#include <linux/mm.h> |
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#include <asm/elf.h> |
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Elf32_Half elf_core_extra_phdrs(void) |
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{ |
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return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0; |
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} |
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int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset) |
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{ |
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if ( vsyscall_ehdr ) { |
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const struct elfhdr *const ehdrp = |
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(struct elfhdr *) vsyscall_ehdr; |
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const struct elf_phdr *const phdrp = |
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(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); |
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int i; |
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Elf32_Off ofs = 0; |
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for (i = 0; i < ehdrp->e_phnum; ++i) { |
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struct elf_phdr phdr = phdrp[i]; |
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if (phdr.p_type == PT_LOAD) { |
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ofs = phdr.p_offset = offset; |
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offset += phdr.p_filesz; |
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} else { |
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phdr.p_offset += ofs; |
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} |
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phdr.p_paddr = 0; /* match other core phdrs */ |
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if (!dump_emit(cprm, &phdr, sizeof(phdr))) |
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return 0; |
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} |
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} |
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return 1; |
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} |
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int elf_core_write_extra_data(struct coredump_params *cprm) |
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{ |
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if ( vsyscall_ehdr ) { |
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const struct elfhdr *const ehdrp = |
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(struct elfhdr *) vsyscall_ehdr; |
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const struct elf_phdr *const phdrp = |
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(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); |
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int i; |
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for (i = 0; i < ehdrp->e_phnum; ++i) { |
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if (phdrp[i].p_type == PT_LOAD) { |
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void *addr = (void *) phdrp[i].p_vaddr; |
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size_t filesz = phdrp[i].p_filesz; |
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if (!dump_emit(cprm, addr, filesz)) |
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return 0; |
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} |
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} |
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} |
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return 1; |
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} |
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size_t elf_core_extra_data_size(void) |
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{ |
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if ( vsyscall_ehdr ) { |
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const struct elfhdr *const ehdrp = |
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(struct elfhdr *)vsyscall_ehdr; |
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const struct elf_phdr *const phdrp = |
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(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); |
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int i; |
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for (i = 0; i < ehdrp->e_phnum; ++i) |
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if (phdrp[i].p_type == PT_LOAD) |
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return (size_t) phdrp[i].p_filesz; |
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} |
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return 0; |
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}
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