1/* 2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 3 * Copyright (C) 2008-2009 PetaLogix 4 * Copyright (C) 2006 Atmark Techno, Inc. 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11#ifndef _ASM_MICROBLAZE_ELF_H 12#define _ASM_MICROBLAZE_ELF_H 13 14/* 15 * Note there is no "official" ELF designation for Microblaze. 16 * I've snaffled the value from the microblaze binutils source code 17 * /binutils/microblaze/include/elf/microblaze.h 18 */ 19#define EM_XILINX_MICROBLAZE 0xbaab 20#define ELF_ARCH EM_XILINX_MICROBLAZE 21 22/* 23 * This is used to ensure we don't load something for the wrong architecture. 24 */ 25#define elf_check_arch(x) ((x)->e_machine == EM_XILINX_MICROBLAZE) 26 27/* 28 * These are used to set parameters in the core dumps. 29 */ 30#define ELF_CLASS ELFCLASS32 31 32#ifndef __uClinux__ 33 34/* 35 * ELF register definitions.. 36 */ 37 38#include <asm/ptrace.h> 39#include <asm/byteorder.h> 40 41#ifndef ELF_GREG_T 42#define ELF_GREG_T 43typedef unsigned long elf_greg_t; 44#endif 45 46#ifndef ELF_NGREG 47#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) 48#endif 49 50#ifndef ELF_GREGSET_T 51#define ELF_GREGSET_T 52typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 53#endif 54 55#ifndef ELF_FPREGSET_T 56#define ELF_FPREGSET_T 57 58/* TBD */ 59#define ELF_NFPREG 33 /* includes fsr */ 60typedef unsigned long elf_fpreg_t; 61typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; 62 63/* typedef struct user_fpu_struct elf_fpregset_t; */ 64#endif 65 66/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 67 * use of this is to invoke "./ld.so someprog" to test out a new version of 68 * the loader. We need to make sure that it is out of the way of the program 69 * that it will "exec", and that there is sufficient room for the brk. 70 */ 71 72#define ELF_ET_DYN_BASE (0x08000000) 73 74#ifdef __LITTLE_ENDIAN__ 75#define ELF_DATA ELFDATA2LSB 76#else 77#define ELF_DATA ELFDATA2MSB 78#endif 79 80#define ELF_EXEC_PAGESIZE PAGE_SIZE 81 82 83#define ELF_CORE_COPY_REGS(_dest, _regs) \ 84 memcpy((char *) &_dest, (char *) _regs, \ 85 sizeof(struct pt_regs)); 86 87/* This yields a mask that user programs can use to figure out what 88 * instruction set this CPU supports. This could be done in user space, 89 * but it's not easy, and we've already done it here. 90 */ 91#define ELF_HWCAP (0) 92 93/* This yields a string that ld.so will use to load implementation 94 * specific libraries for optimization. This is more specific in 95 * intent than poking at uname or /proc/cpuinfo. 96 97 * For the moment, we have only optimizations for the Intel generations, 98 * but that could change... 99 */ 100#define ELF_PLATFORM (NULL) 101 102/* Added _f parameter. Is this definition correct: TBD */ 103#define ELF_PLAT_INIT(_r, _f) \ 104do { \ 105 _r->r1 = _r->r1 = _r->r2 = _r->r3 = \ 106 _r->r4 = _r->r5 = _r->r6 = _r->r7 = \ 107 _r->r8 = _r->r9 = _r->r10 = _r->r11 = \ 108 _r->r12 = _r->r13 = _r->r14 = _r->r15 = \ 109 _r->r16 = _r->r17 = _r->r18 = _r->r19 = \ 110 _r->r20 = _r->r21 = _r->r22 = _r->r23 = \ 111 _r->r24 = _r->r25 = _r->r26 = _r->r27 = \ 112 _r->r28 = _r->r29 = _r->r30 = _r->r31 = \ 113 0; \ 114} while (0) 115 116#ifdef __KERNEL__ 117#define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT) 118#endif 119 120#endif /* __uClinux__ */ 121 122#endif /* _ASM_MICROBLAZE_ELF_H */ 123