127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASMm68k_ELF_H
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#define __ASMm68k_ELF_H
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/*
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* ELF register definitions..
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*/
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#include <asm/ptrace.h>
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#include <asm/user.h>
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/*
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* 68k ELF relocation types
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*/
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#define R_68K_NONE 0
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#define R_68K_32 1
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#define R_68K_16 2
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#define R_68K_8 3
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#define R_68K_PC32 4
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#define R_68K_PC16 5
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#define R_68K_PC8 6
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#define R_68K_GOT32 7
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#define R_68K_GOT16 8
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#define R_68K_GOT8 9
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#define R_68K_GOT32O 10
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#define R_68K_GOT16O 11
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#define R_68K_GOT8O 12
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#define R_68K_PLT32 13
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#define R_68K_PLT16 14
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#define R_68K_PLT8 15
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#define R_68K_PLT32O 16
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#define R_68K_PLT16O 17
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#define R_68K_PLT8O 18
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#define R_68K_COPY 19
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#define R_68K_GLOB_DAT 20
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#define R_68K_JMP_SLOT 21
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#define R_68K_RELATIVE 22
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_m68kfp_struct 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_68K)
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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 ELFDATA2MSB
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#define ELF_ARCH EM_68K
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/* For SVR4/m68k the function pointer to be registered with `atexit' is
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passed in %a1. Although my copy of the ABI has no such statement, it
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is actually used on ASV. */
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#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0
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#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \
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do { \
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(_r)->d3 = _exec_map_addr; \
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(_r)->d4 = _interp_map_addr; \
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(_r)->d5 = dynamic_addr; \
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} while(0)
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#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
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#define ELF_EXEC_PAGESIZE 8192
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#else
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#define ELF_EXEC_PAGESIZE 4096
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#endif
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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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#ifndef CONFIG_SUN3
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#define ELF_ET_DYN_BASE 0xD0000000UL
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#else
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#define ELF_ET_DYN_BASE 0x0D800000UL
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#endif
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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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/* Bleech. */ \
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pr_reg[0] = regs->d1; \
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pr_reg[1] = regs->d2; \
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pr_reg[2] = regs->d3; \
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pr_reg[3] = regs->d4; \
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pr_reg[4] = regs->d5; \
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pr_reg[7] = regs->a0; \
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pr_reg[8] = regs->a1; \
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pr_reg[9] = regs->a2; \
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pr_reg[14] = regs->d0; \
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pr_reg[15] = rdusp(); \
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pr_reg[16] = regs->orig_d0; \
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pr_reg[17] = regs->sr; \
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pr_reg[18] = regs->pc; \
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pr_reg[19] = (regs->format << 12) | regs->vector; \
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{ \
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struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \
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pr_reg[5] = sw->d6; \
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pr_reg[6] = sw->d7; \
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pr_reg[10] = sw->a3; \
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pr_reg[11] = sw->a4; \
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pr_reg[12] = sw->a5; \
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pr_reg[13] = sw->a6; \
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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. */
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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 ELF_FDPIC_CORE_EFLAGS 0
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#endif
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