/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> * Copyright (C) 2012 Regents of the University of California */ #ifndef _ASM_RISCV_ELF_H #define _ASM_RISCV_ELF_H #include <uapi/asm/elf.h> #include <asm/auxvec.h> #include <asm/byteorder.h> /* * These are used to set parameters in the core dumps. */ #define ELF_ARCH EM_RISCV #ifdef CONFIG_64BIT #define ELF_CLASS ELFCLASS64 #else #define ELF_CLASS ELFCLASS32 #endif #define ELF_DATA ELFDATA2LSB /* * This is used to ensure we don't load something for the wrong architecture. */ #define elf_check_arch(x) ((x)->e_machine == EM_RISCV) #define CORE_DUMP_USE_REGSET #define ELF_EXEC_PAGESIZE (PAGE_SIZE) /* * This is the location that an ET_DYN program is loaded if exec'ed. Typical * use of this is to invoke "./ld.so someprog" to test out a new version of * the loader. We need to make sure that it is out of the way of the program * that it will "exec", and that there is sufficient room for the brk. */ #define ELF_ET_DYN_BASE ((TASK_SIZE / 3) * 2) /* * This yields a mask that user programs can use to figure out what * instruction set this CPU supports. This could be done in user space, * but it's not easy, and we've already done it here. */ #define ELF_HWCAP (elf_hwcap) extern unsigned long elf_hwcap; /* * This yields a string that ld.so will use to load implementation * specific libraries for optimization. This is more specific in * intent than poking at uname or /proc/cpuinfo. */ #define ELF_PLATFORM (NULL) #ifdef CONFIG_MMU #define ARCH_DLINFO \ do { \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ (elf_addr_t)current->mm->context.vdso); \ } while (0) #define ARCH_HAS_SETUP_ADDITIONAL_PAGES struct linux_binprm; extern int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); #endif /* CONFIG_MMU */ #endif /* _ASM_RISCV_ELF_H */