| 1 |
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| 2 | #ifndef _LINUX_ELF_H
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| 3 | #define _LINUX_ELF_H
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| 4 |
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| 5 | #include <linux/types.h>
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| 6 | #include <asm/elf.h>
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| 7 | #include <uapi/linux/elf.h>
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| 8 |
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| 9 | #ifndef elf_read_implies_exec
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| 10 | |
| 11 | have the READ_IMPLIES_EXEC personality flag set automatically.
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| 12 | Override in asm/elf.h as needed.
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| 13 | # define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
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| 14 | #endif
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| 15 | #ifndef SET_PERSONALITY
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| 16 | #define SET_PERSONALITY(ex) \
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| 17 | set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
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| 18 | #endif
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| 19 |
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| 20 | #ifndef SET_PERSONALITY2
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| 21 | #define SET_PERSONALITY2(ex, state) \
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| 22 | SET_PERSONALITY(ex)
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| 23 | #endif
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| 24 |
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| 25 | #ifndef START_THREAD
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| 26 | #define START_THREAD(elf_ex, regs, elf_entry, start_stack) \
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| 27 | start_thread(regs, elf_entry, start_stack)
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| 28 | #endif
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| 29 |
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| 30 | #if defined(ARCH_HAS_SETUP_ADDITIONAL_PAGES) && !defined(ARCH_SETUP_ADDITIONAL_PAGES)
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| 31 | #define ARCH_SETUP_ADDITIONAL_PAGES(bprm, ex, interpreter) \
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| 32 | arch_setup_additional_pages(bprm, interpreter)
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| 33 | #endif
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| 34 |
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| 35 | #define ELF32_GNU_PROPERTY_ALIGN 4
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| 36 | #define ELF64_GNU_PROPERTY_ALIGN 8
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| 37 |
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| 38 | #if ELF_CLASS == ELFCLASS32
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| 39 |
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| 40 | extern Elf32_Dyn _DYNAMIC [];
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| 41 | #define elfhdr elf32_hdr
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| 42 | #define elf_phdr elf32_phdr
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| 43 | #define elf_shdr elf32_shdr
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| 44 | #define elf_note elf32_note
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| 45 | #define elf_addr_t Elf32_Off
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| 46 | #define Elf_Half Elf32_Half
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| 47 | #define Elf_Word Elf32_Word
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| 48 | #define ELF_GNU_PROPERTY_ALIGN ELF32_GNU_PROPERTY_ALIGN
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| 49 |
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| 50 | #else
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| 51 |
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| 52 | extern Elf64_Dyn _DYNAMIC [];
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| 53 | #define elfhdr elf64_hdr
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| 54 | #define elf_phdr elf64_phdr
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| 55 | #define elf_shdr elf64_shdr
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| 56 | #define elf_note elf64_note
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| 57 | #define elf_addr_t Elf64_Off
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| 58 | #define Elf_Half Elf64_Half
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| 59 | #define Elf_Word Elf64_Word
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| 60 | #define ELF_GNU_PROPERTY_ALIGN ELF64_GNU_PROPERTY_ALIGN
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| 61 |
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| 62 | #endif
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| 63 |
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| 64 |
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| 65 | struct file;
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| 66 | struct coredump_params;
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| 67 |
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| 68 | #ifndef CONFIG_ARCH_HAVE_EXTRA_ELF_NOTES
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| 69 | static inline int elf_coredump_extra_notes_size(void) { return 0; }
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| 70 | static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
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| 71 | #else
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| 72 | extern int elf_coredump_extra_notes_size(void);
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| 73 | extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
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| 74 | #endif
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| 75 |
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| 76 | |
| 77 | * NT_GNU_PROPERTY_TYPE_0 header:
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| 78 | * Keep this internal until/unless there is an agreed UAPI definition.
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| 79 | * pr_type values (GNU_PROPERTY_*) are public and defined in the UAPI header.
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| 80 |
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| 81 | struct gnu_property {
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| 82 | u32 pr_type;
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| 83 | u32 pr_datasz;
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| 84 | };
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| 85 |
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| 86 | struct arch_elf_state;
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| 87 |
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| 88 | #ifndef CONFIG_ARCH_USE_GNU_PROPERTY
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| 89 | static inline int arch_parse_elf_property(u32 type, const void *data,
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| 90 | size_t datasz, bool compat,
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| 91 | struct arch_elf_state *arch)
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| 92 | {
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| 93 | return 0;
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| 94 | }
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| 95 | #else
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| 96 | extern int arch_parse_elf_property(u32 type, const void *data, size_t datasz,
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| 97 | bool compat, struct arch_elf_state *arch);
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| 98 | #endif
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| 99 |
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| 100 | #ifdef CONFIG_ARCH_HAVE_ELF_PROT
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| 101 | int arch_elf_adjust_prot(int prot, const struct arch_elf_state *state,
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| 102 | bool has_interp, bool is_interp);
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| 103 | #else
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| 104 | static inline int arch_elf_adjust_prot(int prot,
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| 105 | const struct arch_elf_state *state,
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| 106 | bool has_interp, bool is_interp)
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| 107 | {
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| 108 | return prot;
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| 109 | }
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| 110 | #endif
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| 111 |
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| 112 | #endif
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