| /* 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 */ |