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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_ELF_H
#define _LINUX_ELF_H
#include <linux/types.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
#ifndef START_THREAD
#define START_THREAD(elf_ex, regs, elf_entry, start_stack) \
start_thread(regs, elf_entry, start_stack)
#endif
#if defined(ARCH_HAS_SETUP_ADDITIONAL_PAGES) && !defined(ARCH_SETUP_ADDITIONAL_PAGES)
#define ARCH_SETUP_ADDITIONAL_PAGES(bprm, ex, interpreter) \
arch_setup_additional_pages(bprm, interpreter)
#endif
#define ELF32_GNU_PROPERTY_ALIGN 4
#define ELF64_GNU_PROPERTY_ALIGN 8
#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
#define ELF_GNU_PROPERTY_ALIGN ELF32_GNU_PROPERTY_ALIGN
#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
#define ELF_GNU_PROPERTY_ALIGN ELF64_GNU_PROPERTY_ALIGN
#endif
/* 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
/*
* NT_GNU_PROPERTY_TYPE_0 header:
* Keep this internal until/unless there is an agreed UAPI definition.
* pr_type values (GNU_PROPERTY_*) are public and defined in the UAPI header.
*/
struct gnu_property {
u32 pr_type;
u32 pr_datasz;
};
struct arch_elf_state;
#ifndef CONFIG_ARCH_USE_GNU_PROPERTY
static inline int arch_parse_elf_property(u32 type, const void *data,
size_t datasz, bool compat,
struct arch_elf_state *arch)
{
return 0;
}
#else
extern int arch_parse_elf_property(u32 type, const void *data, size_t datasz,
bool compat, struct arch_elf_state *arch);
#endif
#ifdef CONFIG_ARCH_HAVE_ELF_PROT
int arch_elf_adjust_prot(int prot, const struct arch_elf_state *state,
bool has_interp, bool is_interp);
#else
static inline int arch_elf_adjust_prot(int prot,
const struct arch_elf_state *state,
bool has_interp, bool is_interp)
{
return prot;
}
#endif
#endif /* _LINUX_ELF_H */
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