1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_ELF_H 3 #define _LINUX_ELF_H 4 5 #include <linux/types.h> 6 #include <asm/elf.h> 7 #include <uapi/linux/elf.h> 8 9 #ifndef elf_read_implies_exec 10 /* Executables for which elf_read_implies_exec() returns TRUE will 11 have the READ_IMPLIES_EXEC personality flag set automatically. 12 Override in asm/elf.h as needed. */ 13 # define elf_read_implies_exec(ex, have_pt_gnu_stack) 0 14 #endif 15 #ifndef SET_PERSONALITY 16 #define SET_PERSONALITY(ex) \ 17 set_personality(PER_LINUX | (current->personality & (~PER_MASK))) 18 #endif 19 20 #ifndef SET_PERSONALITY2 21 #define SET_PERSONALITY2(ex, state) \ 22 SET_PERSONALITY(ex) 23 #endif 24 25 #if ELF_CLASS == ELFCLASS32 26 27 extern Elf32_Dyn _DYNAMIC []; 28 #define elfhdr elf32_hdr 29 #define elf_phdr elf32_phdr 30 #define elf_shdr elf32_shdr 31 #define elf_note elf32_note 32 #define elf_addr_t Elf32_Off 33 #define Elf_Half Elf32_Half 34 #define Elf_Word Elf32_Word 35 36 #else 37 38 extern Elf64_Dyn _DYNAMIC []; 39 #define elfhdr elf64_hdr 40 #define elf_phdr elf64_phdr 41 #define elf_shdr elf64_shdr 42 #define elf_note elf64_note 43 #define elf_addr_t Elf64_Off 44 #define Elf_Half Elf64_Half 45 #define Elf_Word Elf64_Word 46 47 #endif 48 49 /* Optional callbacks to write extra ELF notes. */ 50 struct file; 51 struct coredump_params; 52 53 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES 54 static inline int elf_coredump_extra_notes_size(void) { return 0; } 55 static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; } 56 #else 57 extern int elf_coredump_extra_notes_size(void); 58 extern int elf_coredump_extra_notes_write(struct coredump_params *cprm); 59 #endif 60 61 /* 62 * NT_GNU_PROPERTY_TYPE_0 header: 63 * Keep this internal until/unless there is an agreed UAPI definition. 64 * pr_type values (GNU_PROPERTY_*) are public and defined in the UAPI header. 65 */ 66 struct gnu_property { 67 u32 pr_type; 68 u32 pr_datasz; 69 }; 70 71 #endif /* _LINUX_ELF_H */ 72