144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/* elf.h: FR-V ELF definitions
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*
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* Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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* - Derived from include/asm-m68knommu/elf.h
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef __ASM_ELF_H
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#define __ASM_ELF_H
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#include <asm/ptrace.h>
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#include <asm/user.h>
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struct elf32_hdr;
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/*
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* ELF header e_flags defines.
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*/
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#define EF_FRV_GPR_MASK 0x00000003 /* mask for # of gprs */
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#define EF_FRV_GPR32 0x00000001 /* Only uses GR on 32-register */
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#define EF_FRV_GPR64 0x00000002 /* Only uses GR on 64-register */
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#define EF_FRV_FPR_MASK 0x0000000c /* mask for # of fprs */
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#define EF_FRV_FPR32 0x00000004 /* Only uses FR on 32-register */
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#define EF_FRV_FPR64 0x00000008 /* Only uses FR on 64-register */
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#define EF_FRV_FPR_NONE 0x0000000C /* Uses software floating-point */
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#define EF_FRV_DWORD_MASK 0x00000030 /* mask for dword support */
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#define EF_FRV_DWORD_YES 0x00000010 /* Assumes stack aligned to 8-byte boundaries. */
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#define EF_FRV_DWORD_NO 0x00000020 /* Assumes stack aligned to 4-byte boundaries. */
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#define EF_FRV_DOUBLE 0x00000040 /* Uses double instructions. */
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#define EF_FRV_MEDIA 0x00000080 /* Uses media instructions. */
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#define EF_FRV_PIC 0x00000100 /* Uses position independent code. */
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#define EF_FRV_NON_PIC_RELOCS 0x00000200 /* Does not use position Independent code. */
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#define EF_FRV_MULADD 0x00000400 /* -mmuladd */
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#define EF_FRV_BIGPIC 0x00000800 /* -fPIC */
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#define EF_FRV_LIBPIC 0x00001000 /* -mlibrary-pic */
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#define EF_FRV_G0 0x00002000 /* -G 0, no small data ptr */
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#define EF_FRV_NOPACK 0x00004000 /* -mnopack */
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#define EF_FRV_FDPIC 0x00008000 /* -mfdpic */
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#define EF_FRV_CPU_MASK 0xff000000 /* specific cpu bits */
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#define EF_FRV_CPU_GENERIC 0x00000000 /* Set CPU type is FR-V */
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#define EF_FRV_CPU_FR500 0x01000000 /* Set CPU type is FR500 */
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#define EF_FRV_CPU_FR300 0x02000000 /* Set CPU type is FR300 */
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#define EF_FRV_CPU_SIMPLE 0x03000000 /* SIMPLE */
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#define EF_FRV_CPU_TOMCAT 0x04000000 /* Tomcat, FR500 prototype */
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#define EF_FRV_CPU_FR400 0x05000000 /* Set CPU type is FR400 */
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#define EF_FRV_CPU_FR550 0x06000000 /* Set CPU type is FR550 */
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#define EF_FRV_CPU_FR405 0x07000000 /* Set CPU type is FR405 */
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#define EF_FRV_CPU_FR450 0x08000000 /* Set CPU type is FR450 */
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/*
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* FR-V ELF relocation types
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*/
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/*
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* ELF register definitions..
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*/
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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 struct user_fpmedia_regs 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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extern int elf_check_arch(const struct elf32_hdr *hdr);
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#define elf_check_fdpic(x) ((x)->e_flags & EF_FRV_FDPIC && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS))
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#define elf_check_const_displacement(x) ((x)->e_flags & EF_FRV_PIC)
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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_FRV
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#define ELF_PLAT_INIT(_r) \
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do { \
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__kernel_frame0_ptr->gr16 = 0; \
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__kernel_frame0_ptr->gr17 = 0; \
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__kernel_frame0_ptr->gr18 = 0; \
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__kernel_frame0_ptr->gr19 = 0; \
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__kernel_frame0_ptr->gr20 = 0; \
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__kernel_frame0_ptr->gr21 = 0; \
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__kernel_frame0_ptr->gr22 = 0; \
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__kernel_frame0_ptr->gr23 = 0; \
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__kernel_frame0_ptr->gr24 = 0; \
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__kernel_frame0_ptr->gr25 = 0; \
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__kernel_frame0_ptr->gr26 = 0; \
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__kernel_frame0_ptr->gr27 = 0; \
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__kernel_frame0_ptr->gr29 = 0; \
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} while(0)
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#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr) \
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do { \
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__kernel_frame0_ptr->gr16 = _exec_map_addr; \
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__kernel_frame0_ptr->gr17 = _interp_map_addr; \
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__kernel_frame0_ptr->gr18 = _dynamic_addr; \
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__kernel_frame0_ptr->gr19 = 0; \
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__kernel_frame0_ptr->gr20 = 0; \
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__kernel_frame0_ptr->gr21 = 0; \
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__kernel_frame0_ptr->gr22 = 0; \
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__kernel_frame0_ptr->gr23 = 0; \
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__kernel_frame0_ptr->gr24 = 0; \
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__kernel_frame0_ptr->gr25 = 0; \
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__kernel_frame0_ptr->gr26 = 0; \
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__kernel_frame0_ptr->gr27 = 0; \
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__kernel_frame0_ptr->gr29 = 0; \
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} while(0)
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#define USE_ELF_CORE_DUMP
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#define CORE_DUMP_USE_REGSET
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#define ELF_FDPIC_CORE_EFLAGS EF_FRV_FDPIC
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#define ELF_EXEC_PAGESIZE 16384
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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 0x08000000UL
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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)
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#endif
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