1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/types.h>
7 #include <uapi/linux/elf.h>
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
15 #ifndef SET_PERSONALITY
16 #define SET_PERSONALITY(ex) \
17 set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
20 #ifndef SET_PERSONALITY2
21 #define SET_PERSONALITY2(ex, state) \
25 #define ELF32_GNU_PROPERTY_ALIGN 4
26 #define ELF64_GNU_PROPERTY_ALIGN 8
28 #if ELF_CLASS == ELFCLASS32
30 extern Elf32_Dyn _DYNAMIC [];
31 #define elfhdr elf32_hdr
32 #define elf_phdr elf32_phdr
33 #define elf_shdr elf32_shdr
34 #define elf_note elf32_note
35 #define elf_addr_t Elf32_Off
36 #define Elf_Half Elf32_Half
37 #define Elf_Word Elf32_Word
38 #define ELF_GNU_PROPERTY_ALIGN ELF32_GNU_PROPERTY_ALIGN
42 extern Elf64_Dyn _DYNAMIC [];
43 #define elfhdr elf64_hdr
44 #define elf_phdr elf64_phdr
45 #define elf_shdr elf64_shdr
46 #define elf_note elf64_note
47 #define elf_addr_t Elf64_Off
48 #define Elf_Half Elf64_Half
49 #define Elf_Word Elf64_Word
50 #define ELF_GNU_PROPERTY_ALIGN ELF64_GNU_PROPERTY_ALIGN
54 /* Optional callbacks to write extra ELF notes. */
56 struct coredump_params;
58 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
59 static inline int elf_coredump_extra_notes_size(void) { return 0; }
60 static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
62 extern int elf_coredump_extra_notes_size(void);
63 extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
67 * NT_GNU_PROPERTY_TYPE_0 header:
68 * Keep this internal until/unless there is an agreed UAPI definition.
69 * pr_type values (GNU_PROPERTY_*) are public and defined in the UAPI header.
76 struct arch_elf_state;
78 #ifndef CONFIG_ARCH_USE_GNU_PROPERTY
79 static inline int arch_parse_elf_property(u32 type, const void *data,
80 size_t datasz, bool compat,
81 struct arch_elf_state *arch)
86 extern int arch_parse_elf_property(u32 type, const void *data, size_t datasz,
87 bool compat, struct arch_elf_state *arch);
90 #ifdef CONFIG_ARCH_HAVE_ELF_PROT
91 int arch_elf_adjust_prot(int prot, const struct arch_elf_state *state,
92 bool has_interp, bool is_interp);
94 static inline int arch_elf_adjust_prot(int prot,
95 const struct arch_elf_state *state,
96 bool has_interp, bool is_interp)
102 #endif /* _LINUX_ELF_H */