/* SPDX-License-Identifier: GPL-2.0-or-later */ /* FDPIC ELF load map * * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #ifndef _LINUX_ELF_FDPIC_H #define _LINUX_ELF_FDPIC_H #include <uapi/linux/elf-fdpic.h> #if ELF_CLASS == ELFCLASS32 #define Elf_Sword Elf32_Sword #define elf_fdpic_loadseg elf32_fdpic_loadseg #define elf_fdpic_loadmap elf32_fdpic_loadmap #define ELF_FDPIC_LOADMAP_VERSION ELF32_FDPIC_LOADMAP_VERSION #else #define Elf_Sword Elf64_Sxword #define elf_fdpic_loadmap elf64_fdpic_loadmap #define elf_fdpic_loadseg elf64_fdpic_loadseg #define ELF_FDPIC_LOADMAP_VERSION ELF64_FDPIC_LOADMAP_VERSION #endif /* * 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 elf_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 */