Commit | Line | Data |
---|---|---|
2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
0c552e5f DH |
2 | /* FDPIC ELF load map |
3 | * | |
4 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | |
5 | * Written by David Howells (dhowells@redhat.com) | |
0c552e5f DH |
6 | */ |
7 | ||
8 | #ifndef _LINUX_ELF_FDPIC_H | |
9 | #define _LINUX_ELF_FDPIC_H | |
10 | ||
11 | #include <uapi/linux/elf-fdpic.h> | |
12 | ||
13 | /* | |
14 | * binfmt binary parameters structure | |
15 | */ | |
16 | struct elf_fdpic_params { | |
17 | struct elfhdr hdr; /* ref copy of ELF header */ | |
18 | struct elf_phdr *phdrs; /* ref copy of PT_PHDR table */ | |
19 | struct elf32_fdpic_loadmap *loadmap; /* loadmap to be passed to userspace */ | |
20 | unsigned long elfhdr_addr; /* mapped ELF header user address */ | |
21 | unsigned long ph_addr; /* mapped PT_PHDR user address */ | |
22 | unsigned long map_addr; /* mapped loadmap user address */ | |
23 | unsigned long entry_addr; /* mapped entry user address */ | |
24 | unsigned long stack_size; /* stack size requested (PT_GNU_STACK) */ | |
25 | unsigned long dynamic_addr; /* mapped PT_DYNAMIC user address */ | |
26 | unsigned long load_addr; /* user address at which to map binary */ | |
27 | unsigned long flags; | |
28 | #define ELF_FDPIC_FLAG_ARRANGEMENT 0x0000000f /* PT_LOAD arrangement flags */ | |
29 | #define ELF_FDPIC_FLAG_INDEPENDENT 0x00000000 /* PT_LOADs can be put anywhere */ | |
30 | #define ELF_FDPIC_FLAG_HONOURVADDR 0x00000001 /* PT_LOAD.vaddr must be honoured */ | |
31 | #define ELF_FDPIC_FLAG_CONSTDISP 0x00000002 /* PT_LOADs require constant | |
32 | * displacement */ | |
33 | #define ELF_FDPIC_FLAG_CONTIGUOUS 0x00000003 /* PT_LOADs should be contiguous */ | |
34 | #define ELF_FDPIC_FLAG_EXEC_STACK 0x00000010 /* T if stack to be executable */ | |
35 | #define ELF_FDPIC_FLAG_NOEXEC_STACK 0x00000020 /* T if stack not to be executable */ | |
36 | #define ELF_FDPIC_FLAG_EXECUTABLE 0x00000040 /* T if this object is the executable */ | |
37 | #define ELF_FDPIC_FLAG_PRESENT 0x80000000 /* T if this object is present */ | |
38 | }; | |
39 | ||
40 | #ifdef CONFIG_MMU | |
41 | extern void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params, | |
42 | struct elf_fdpic_params *interp_params, | |
43 | unsigned long *start_stack, | |
44 | unsigned long *start_brk); | |
45 | #endif | |
46 | ||
47 | #endif /* _LINUX_ELF_FDPIC_H */ |