1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2/* 3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 4 * Copyright (C) 2008-2009 PetaLogix 5 * Copyright (C) 2006 Atmark Techno, Inc. 6 * 7 * This file is subject to the terms and conditions of the GNU General Public 8 * License. See the file "COPYING" in the main directory of this archive 9 * for more details. 10 */ 11 12#ifndef _UAPI_ASM_MICROBLAZE_ELF_H 13#define _UAPI_ASM_MICROBLAZE_ELF_H 14 15#include <linux/elf-em.h> 16 17/* 18 * Note there is no "official" ELF designation for Microblaze. 19 * I've snaffled the value from the microblaze binutils source code 20 * /binutils/microblaze/include/elf/microblaze.h 21 */ 22#define EM_MICROBLAZE_OLD 0xbaab 23#define ELF_ARCH EM_MICROBLAZE 24 25/* 26 * This is used to ensure we don't load something for the wrong architecture. 27 */ 28#define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \ 29 || (x)->e_machine == EM_MICROBLAZE_OLD) 30 31/* 32 * These are used to set parameters in the core dumps. 33 */ 34#define ELF_CLASS ELFCLASS32 35 36#ifndef __uClinux__ 37 38/* 39 * ELF register definitions.. 40 */ 41 42#include <asm/ptrace.h> 43#include <asm/byteorder.h> 44 45#ifndef ELF_GREG_T 46#define ELF_GREG_T 47typedef unsigned long elf_greg_t; 48#endif 49 50#ifndef ELF_NGREG 51#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) 52#endif 53 54#ifndef ELF_GREGSET_T 55#define ELF_GREGSET_T 56typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 57#endif 58 59#ifndef ELF_FPREGSET_T 60#define ELF_FPREGSET_T 61 62/* TBD */ 63#define ELF_NFPREG 33 /* includes fsr */ 64typedef unsigned long elf_fpreg_t; 65typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; 66 67/* typedef struct user_fpu_struct elf_fpregset_t; */ 68#endif 69 70/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 71 * use of this is to invoke "./ld.so someprog" to test out a new version of 72 * the loader. We need to make sure that it is out of the way of the program 73 * that it will "exec", and that there is sufficient room for the brk. 74 */ 75 76#define ELF_ET_DYN_BASE (0x08000000) 77 78#ifdef __MICROBLAZEEL__ 79#define ELF_DATA ELFDATA2LSB 80#else 81#define ELF_DATA ELFDATA2MSB 82#endif 83 84#define ELF_EXEC_PAGESIZE PAGE_SIZE 85 86 87#define ELF_CORE_COPY_REGS(_dest, _regs) \ 88 memcpy((char *) &_dest, (char *) _regs, \ 89 sizeof(struct pt_regs)); 90 91/* This yields a mask that user programs can use to figure out what 92 * instruction set this CPU supports. This could be done in user space, 93 * but it's not easy, and we've already done it here. 94 */ 95#define ELF_HWCAP (0) 96 97/* This yields a string that ld.so will use to load implementation 98 * specific libraries for optimization. This is more specific in 99 * intent than poking at uname or /proc/cpuinfo. 100 101 * For the moment, we have only optimizations for the Intel generations, 102 * but that could change... 103 */ 104#define ELF_PLATFORM (NULL) 105 106/* Added _f parameter. Is this definition correct: TBD */ 107#define ELF_PLAT_INIT(_r, _f) \ 108do { \ 109 _r->r0 = _r->r1 = _r->r2 = _r->r3 = \ 110 _r->r4 = _r->r5 = _r->r6 = _r->r7 = \ 111 _r->r8 = _r->r9 = _r->r10 = _r->r11 = \ 112 _r->r12 = _r->r13 = _r->r14 = _r->r15 = \ 113 _r->r16 = _r->r17 = _r->r18 = _r->r19 = \ 114 _r->r20 = _r->r21 = _r->r22 = _r->r23 = \ 115 _r->r24 = _r->r25 = _r->r26 = _r->r27 = \ 116 _r->r28 = _r->r29 = _r->r30 = _r->r31 = \ 117 0; \ 118} while (0) 119 120 121#endif /* __uClinux__ */ 122 123#endif /* _UAPI_ASM_MICROBLAZE_ELF_H */ 124