166 lines
7.4 KiB
C
166 lines
7.4 KiB
C
/*
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* Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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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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/* Relocation types */
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#define R_NIOS2_NONE 0
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#define R_NIOS2_S16 1
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#define R_NIOS2_U16 2
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#define R_NIOS2_PCREL16 3
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#define R_NIOS2_CALL26 4
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#define R_NIOS2_IMM5 5
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#define R_NIOS2_CACHE_OPX 6
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#define R_NIOS2_IMM6 7
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#define R_NIOS2_IMM8 8
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#define R_NIOS2_HI16 9
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#define R_NIOS2_LO16 10
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#define R_NIOS2_HIADJ16 11
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#define R_NIOS2_BFD_RELOC_32 12
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#define R_NIOS2_BFD_RELOC_16 13
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#define R_NIOS2_BFD_RELOC_8 14
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#define R_NIOS2_GPREL 15
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#define R_NIOS2_GNU_VTINHERIT 16
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#define R_NIOS2_GNU_VTENTRY 17
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#define R_NIOS2_UJMP 18
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#define R_NIOS2_CJMP 19
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#define R_NIOS2_CALLR 20
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#define R_NIOS2_ALIGN 21
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/* Keep this the last entry. */
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#define R_NIOS2_NUM 22
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#include <asm/ptrace.h>
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef unsigned long elf_fpregset_t;
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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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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2LSB
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#define ELF_ARCH EM_ALTERA_NIOS2
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#define ELF_PLAT_INIT(_r, load_addr)
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#define USE_ELF_CORE_DUMP
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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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#ifdef CONFIG_MMU
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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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do { \
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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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#else
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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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do { \
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pr_reg[0] = regs->r1; \
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pr_reg[1] = regs->r2; \
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pr_reg[2] = regs->r3; \
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pr_reg[3] = regs->r4; \
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pr_reg[4] = regs->r5; \
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pr_reg[5] = regs->r6; \
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pr_reg[6] = regs->r7; \
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pr_reg[7] = regs->r8; \
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pr_reg[8] = regs->r9; \
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pr_reg[9] = regs->r10; \
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pr_reg[10] = regs->r11; \
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pr_reg[11] = regs->r12; \
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pr_reg[12] = regs->r13; \
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pr_reg[13] = regs->r14; \
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pr_reg[14] = regs->r15; \
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pr_reg[23] = regs->sp; \
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pr_reg[26] = regs->estatus; \
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{ \
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struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \
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pr_reg[15] = sw->r16; \
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pr_reg[16] = sw->r17; \
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pr_reg[17] = sw->r18; \
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pr_reg[18] = sw->r19; \
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pr_reg[19] = sw->r20; \
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pr_reg[20] = sw->r21; \
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pr_reg[21] = sw->r22; \
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pr_reg[22] = sw->r23; \
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pr_reg[24] = sw->fp; \
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pr_reg[25] = sw->gp; \
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} \
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} while (0)
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#endif /* CONFIG_MMU */
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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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#define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT)
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#endif
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