| /* elf-fdpic.h: FDPIC ELF load map |
| * |
| * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells ([email protected]) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #ifndef _LINUX_ELF_FDPIC_H |
| #define _LINUX_ELF_FDPIC_H |
| |
| #include <linux/elf.h> |
| |
| #define PT_GNU_STACK (PT_LOOS + 0x474e551) |
| |
| /* segment mappings for ELF FDPIC libraries/executables/interpreters */ |
| struct elf32_fdpic_loadseg { |
| Elf32_Addr addr; /* core address to which mapped */ |
| Elf32_Addr p_vaddr; /* VMA recorded in file */ |
| Elf32_Word p_memsz; /* allocation size recorded in file */ |
| }; |
| |
| struct elf32_fdpic_loadmap { |
| Elf32_Half version; /* version of these structures, just in case... */ |
| Elf32_Half nsegs; /* number of segments */ |
| struct elf32_fdpic_loadseg segs[]; |
| }; |
| |
| #define ELF32_FDPIC_LOADMAP_VERSION 0x0000 |
| |
| /* |
| * binfmt binary parameters structure |
| */ |
| struct elf_fdpic_params { |
| struct elfhdr hdr; /* ref copy of ELF header */ |
| struct elf_phdr *phdrs; /* ref copy of PT_PHDR table */ |
| struct elf32_fdpic_loadmap *loadmap; /* loadmap to be passed to userspace */ |
| unsigned long elfhdr_addr; /* mapped ELF header user address */ |
| unsigned long ph_addr; /* mapped PT_PHDR user address */ |
| unsigned long map_addr; /* mapped loadmap user address */ |
| unsigned long entry_addr; /* mapped entry user address */ |
| unsigned long stack_size; /* stack size requested (PT_GNU_STACK) */ |
| unsigned long dynamic_addr; /* mapped PT_DYNAMIC user address */ |
| unsigned long load_addr; /* user address at which to map binary */ |
| unsigned long flags; |
| #define ELF_FDPIC_FLAG_ARRANGEMENT 0x0000000f /* PT_LOAD arrangement flags */ |
| #define ELF_FDPIC_FLAG_INDEPENDENT 0x00000000 /* PT_LOADs can be put anywhere */ |
| #define ELF_FDPIC_FLAG_HONOURVADDR 0x00000001 /* PT_LOAD.vaddr must be honoured */ |
| #define ELF_FDPIC_FLAG_CONSTDISP 0x00000002 /* PT_LOADs require constant |
| * displacement */ |
| #define ELF_FDPIC_FLAG_CONTIGUOUS 0x00000003 /* PT_LOADs should be contiguous */ |
| #define ELF_FDPIC_FLAG_EXEC_STACK 0x00000010 /* T if stack to be executable */ |
| #define ELF_FDPIC_FLAG_NOEXEC_STACK 0x00000020 /* T if stack not to be executable */ |
| #define ELF_FDPIC_FLAG_EXECUTABLE 0x00000040 /* T if this object is the executable */ |
| #define ELF_FDPIC_FLAG_PRESENT 0x80000000 /* T if this object is present */ |
| }; |
| |
| #ifdef CONFIG_MMU |
| extern void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params, |
| struct elf_fdpic_params *interp_params, |
| unsigned long *start_stack, |
| unsigned long *start_brk); |
| #endif |
| |
| #endif /* _LINUX_ELF_FDPIC_H */ |
