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84 lines
2.4 KiB
84 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (C) 2003 Matjaz Breskvar <[email protected]> |
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* Copyright (C) 2010-2011 Jonas Bonn <[email protected]> |
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* Copyright (C) 2012 Regents of the University of California |
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*/ |
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#ifndef _ASM_RISCV_ELF_H |
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#define _ASM_RISCV_ELF_H |
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#include <uapi/asm/elf.h> |
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#include <asm/auxvec.h> |
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#include <asm/byteorder.h> |
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#include <asm/cacheinfo.h> |
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/* |
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* These are used to set parameters in the core dumps. |
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*/ |
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#define ELF_ARCH EM_RISCV |
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#ifdef CONFIG_64BIT |
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#define ELF_CLASS ELFCLASS64 |
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#else |
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#define ELF_CLASS ELFCLASS32 |
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#endif |
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#define ELF_DATA ELFDATA2LSB |
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/* |
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* This is used to ensure we don't load something for the wrong architecture. |
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*/ |
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#define elf_check_arch(x) ((x)->e_machine == EM_RISCV) |
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#define CORE_DUMP_USE_REGSET |
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#define ELF_EXEC_PAGESIZE (PAGE_SIZE) |
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/* |
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* This is the location that an ET_DYN program is loaded if exec'ed. Typical |
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* use of this is to invoke "./ld.so someprog" to test out a new version of |
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* the loader. We need to make sure that it is out of the way of the program |
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* that it will "exec", and that there is sufficient room for the brk. |
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*/ |
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#define ELF_ET_DYN_BASE ((TASK_SIZE / 3) * 2) |
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/* |
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* This yields a mask that user programs can use to figure out what |
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* instruction set this CPU supports. This could be done in user space, |
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* but it's not easy, and we've already done it here. |
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*/ |
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#define ELF_HWCAP (elf_hwcap) |
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extern unsigned long elf_hwcap; |
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/* |
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* This yields a string that ld.so will use to load implementation |
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* specific libraries for optimization. This is more specific in |
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* intent than poking at uname or /proc/cpuinfo. |
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*/ |
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#define ELF_PLATFORM (NULL) |
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#ifdef CONFIG_MMU |
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#define ARCH_DLINFO \ |
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do { \ |
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NEW_AUX_ENT(AT_SYSINFO_EHDR, \ |
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(elf_addr_t)current->mm->context.vdso); \ |
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NEW_AUX_ENT(AT_L1I_CACHESIZE, \ |
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get_cache_size(1, CACHE_TYPE_INST)); \ |
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NEW_AUX_ENT(AT_L1I_CACHEGEOMETRY, \ |
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get_cache_geometry(1, CACHE_TYPE_INST)); \ |
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NEW_AUX_ENT(AT_L1D_CACHESIZE, \ |
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get_cache_size(1, CACHE_TYPE_DATA)); \ |
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NEW_AUX_ENT(AT_L1D_CACHEGEOMETRY, \ |
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get_cache_geometry(1, CACHE_TYPE_DATA)); \ |
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NEW_AUX_ENT(AT_L2_CACHESIZE, \ |
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get_cache_size(2, CACHE_TYPE_UNIFIED)); \ |
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NEW_AUX_ENT(AT_L2_CACHEGEOMETRY, \ |
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get_cache_geometry(2, CACHE_TYPE_UNIFIED)); \ |
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} while (0) |
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES |
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struct linux_binprm; |
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extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
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int uses_interp); |
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#endif /* CONFIG_MMU */ |
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#endif /* _ASM_RISCV_ELF_H */
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