1 /* FDPIC ELF load map 2 * 3 * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12 #ifndef _LINUX_ELF_FDPIC_H 13 #define _LINUX_ELF_FDPIC_H 14 15 #include <uapi/linux/elf-fdpic.h> 16 17 /* 18 * binfmt binary parameters structure 19 */ 20 struct elf_fdpic_params { 21 struct elfhdr hdr; /* ref copy of ELF header */ 22 struct elf_phdr *phdrs; /* ref copy of PT_PHDR table */ 23 struct elf32_fdpic_loadmap *loadmap; /* loadmap to be passed to userspace */ 24 unsigned long elfhdr_addr; /* mapped ELF header user address */ 25 unsigned long ph_addr; /* mapped PT_PHDR user address */ 26 unsigned long map_addr; /* mapped loadmap user address */ 27 unsigned long entry_addr; /* mapped entry user address */ 28 unsigned long stack_size; /* stack size requested (PT_GNU_STACK) */ 29 unsigned long dynamic_addr; /* mapped PT_DYNAMIC user address */ 30 unsigned long load_addr; /* user address at which to map binary */ 31 unsigned long flags; 32 #define ELF_FDPIC_FLAG_ARRANGEMENT 0x0000000f /* PT_LOAD arrangement flags */ 33 #define ELF_FDPIC_FLAG_INDEPENDENT 0x00000000 /* PT_LOADs can be put anywhere */ 34 #define ELF_FDPIC_FLAG_HONOURVADDR 0x00000001 /* PT_LOAD.vaddr must be honoured */ 35 #define ELF_FDPIC_FLAG_CONSTDISP 0x00000002 /* PT_LOADs require constant 36 * displacement */ 37 #define ELF_FDPIC_FLAG_CONTIGUOUS 0x00000003 /* PT_LOADs should be contiguous */ 38 #define ELF_FDPIC_FLAG_EXEC_STACK 0x00000010 /* T if stack to be executable */ 39 #define ELF_FDPIC_FLAG_NOEXEC_STACK 0x00000020 /* T if stack not to be executable */ 40 #define ELF_FDPIC_FLAG_EXECUTABLE 0x00000040 /* T if this object is the executable */ 41 #define ELF_FDPIC_FLAG_PRESENT 0x80000000 /* T if this object is present */ 42 }; 43 44 #ifdef CONFIG_MMU 45 extern void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params, 46 struct elf_fdpic_params *interp_params, 47 unsigned long *start_stack, 48 unsigned long *start_brk); 49 #endif 50 51 #endif /* _LINUX_ELF_FDPIC_H */ 52