mirror of
https://github.com/rd-stuffs/msm-4.14.git
synced 2025-02-20 11:45:48 +08:00
2f127229bd
ELF header format is been used in multiple places, add helper functions to get section, program headers, and string table section details of the elf header. Change-Id: Ib67b6f25a3a9c32305710eae4ad66bea511d6799 Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org> [isaacm@codeaurora.org: Resolve trivial merge conflicts] Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_ELF_H
|
|
#define _LINUX_ELF_H
|
|
|
|
#include <asm/elf.h>
|
|
#include <uapi/linux/elf.h>
|
|
|
|
#ifndef elf_read_implies_exec
|
|
/* Executables for which elf_read_implies_exec() returns TRUE will
|
|
have the READ_IMPLIES_EXEC personality flag set automatically.
|
|
Override in asm/elf.h as needed. */
|
|
# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
|
|
#endif
|
|
#ifndef SET_PERSONALITY
|
|
#define SET_PERSONALITY(ex) \
|
|
set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
|
|
#endif
|
|
|
|
#ifndef SET_PERSONALITY2
|
|
#define SET_PERSONALITY2(ex, state) \
|
|
SET_PERSONALITY(ex)
|
|
#endif
|
|
|
|
#if ELF_CLASS == ELFCLASS32
|
|
|
|
extern Elf32_Dyn _DYNAMIC [];
|
|
#define elfhdr elf32_hdr
|
|
#define elf_phdr elf32_phdr
|
|
#define elf_shdr elf32_shdr
|
|
#define elf_note elf32_note
|
|
#define elf_addr_t Elf32_Off
|
|
#define Elf_Half Elf32_Half
|
|
#define Elf_Word Elf32_Word
|
|
|
|
#else
|
|
|
|
extern Elf64_Dyn _DYNAMIC [];
|
|
#define elfhdr elf64_hdr
|
|
#define elf_phdr elf64_phdr
|
|
#define elf_shdr elf64_shdr
|
|
#define elf_note elf64_note
|
|
#define elf_addr_t Elf64_Off
|
|
#define Elf_Half Elf64_Half
|
|
#define Elf_Word Elf64_Word
|
|
|
|
#endif
|
|
|
|
/* Generic helpers for ELF use */
|
|
/* Return first section header */
|
|
static inline struct elf_shdr *elf_sheader(struct elfhdr *hdr)
|
|
{
|
|
return (struct elf_shdr *)((size_t)hdr + (size_t)hdr->e_shoff);
|
|
}
|
|
|
|
/* Return idx section header */
|
|
static inline struct elf_shdr *elf_section(struct elfhdr *hdr, int idx)
|
|
{
|
|
return &elf_sheader(hdr)[idx];
|
|
}
|
|
|
|
/* Return first program header */
|
|
static inline struct elf_phdr *elf_pheader(struct elfhdr *hdr)
|
|
{
|
|
return (struct elf_phdr *)((size_t)hdr + (size_t)hdr->e_phoff);
|
|
}
|
|
|
|
/* Return idx program header */
|
|
static inline struct elf_phdr *elf_program(struct elfhdr *hdr, int idx)
|
|
{
|
|
return &elf_pheader(hdr)[idx];
|
|
}
|
|
|
|
/* Retunr section's string table header */
|
|
static inline char *elf_str_table(struct elfhdr *hdr)
|
|
{
|
|
if (hdr->e_shstrndx == SHN_UNDEF)
|
|
return NULL;
|
|
return (char *)hdr + elf_section(hdr, hdr->e_shstrndx)->sh_offset;
|
|
}
|
|
|
|
/* Optional callbacks to write extra ELF notes. */
|
|
struct file;
|
|
struct coredump_params;
|
|
|
|
#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
|
|
static inline int elf_coredump_extra_notes_size(void) { return 0; }
|
|
static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
|
|
#else
|
|
extern int elf_coredump_extra_notes_size(void);
|
|
extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
|
|
#endif
|
|
#endif /* _LINUX_ELF_H */
|