2019-05-19 06:51:43 -07:00
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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2014-11-06 00:19:55 -07:00
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/*
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* Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
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*/
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#ifndef _ASM_NIOS2_ELF_H
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#define _ASM_NIOS2_ELF_H
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#include <uapi/asm/elf.h>
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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_ALTERA_NIOS2)
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#define ELF_PLAT_INIT(_r, load_addr)
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#define CORE_DUMP_USE_REGSET
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#define ELF_EXEC_PAGESIZE 4096
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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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#define ELF_ET_DYN_BASE 0xD0000000UL
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/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
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now struct_user_regs, they are different) */
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
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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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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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{ do { \
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/* Bleech. */ \
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pr_reg[0] = regs->r8; \
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pr_reg[1] = regs->r9; \
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pr_reg[2] = regs->r10; \
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pr_reg[3] = regs->r11; \
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pr_reg[4] = regs->r12; \
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pr_reg[5] = regs->r13; \
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pr_reg[6] = regs->r14; \
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pr_reg[7] = regs->r15; \
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pr_reg[8] = regs->r1; \
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pr_reg[9] = regs->r2; \
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pr_reg[10] = regs->r3; \
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pr_reg[11] = regs->r4; \
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pr_reg[12] = regs->r5; \
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pr_reg[13] = regs->r6; \
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pr_reg[14] = regs->r7; \
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pr_reg[15] = regs->orig_r2; \
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pr_reg[16] = regs->ra; \
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pr_reg[17] = regs->fp; \
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pr_reg[18] = regs->sp; \
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pr_reg[19] = regs->gp; \
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pr_reg[20] = regs->estatus; \
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pr_reg[21] = regs->ea; \
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pr_reg[22] = regs->orig_r7; \
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{ \
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struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \
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pr_reg[23] = sw->r16; \
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pr_reg[24] = sw->r17; \
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pr_reg[25] = sw->r18; \
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pr_reg[26] = sw->r19; \
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pr_reg[27] = sw->r20; \
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pr_reg[28] = sw->r21; \
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pr_reg[29] = sw->r22; \
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pr_reg[30] = sw->r23; \
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pr_reg[31] = sw->fp; \
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pr_reg[32] = sw->gp; \
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pr_reg[33] = sw->ra; \
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} \
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} while (0); }
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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. */
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#define ELF_HWCAP (0)
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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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#define ELF_PLATFORM (NULL)
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#endif /* _ASM_NIOS2_ELF_H */
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