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_MICROBLAZE 189 20 #define EM_MICROBLAZE_OLD 0xbaab 21 #define ELF_ARCH EM_MICROBLAZE 22 23 /* 24 * This is used to ensure we don't load something for the wrong architecture. 25 */ 26 #define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \ 27 || (x)->e_machine == EM_MICROBLAZE_OLD) 28 29 /* 30 * These are used to set parameters in the core dumps. 31 */ 32 #define ELF_CLASS ELFCLASS32 33 34 #ifndef __uClinux__ 35 36 /* 37 * ELF register definitions.. 38 */ 39 40 #include <asm/ptrace.h> 41 #include <asm/byteorder.h> 42 43 #ifndef ELF_GREG_T 44 #define ELF_GREG_T 45 typedef unsigned long elf_greg_t; 46 #endif 47 48 #ifndef ELF_NGREG 49 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) 50 #endif 51 52 #ifndef ELF_GREGSET_T 53 #define ELF_GREGSET_T 54 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 55 #endif 56 57 #ifndef ELF_FPREGSET_T 58 #define ELF_FPREGSET_T 59 60 /* TBD */ 61 #define ELF_NFPREG 33 /* includes fsr */ 62 typedef unsigned long elf_fpreg_t; 63 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; 64 65 /* typedef struct user_fpu_struct elf_fpregset_t; */ 66 #endif 67 68 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 69 * use of this is to invoke "./ld.so someprog" to test out a new version of 70 * the loader. We need to make sure that it is out of the way of the program 71 * that it will "exec", and that there is sufficient room for the brk. 72 */ 73 74 #define ELF_ET_DYN_BASE (0x08000000) 75 76 #ifdef __MICROBLAZEEL__ 77 #define ELF_DATA ELFDATA2LSB 78 #else 79 #define ELF_DATA ELFDATA2MSB 80 #endif 81 82 #define ELF_EXEC_PAGESIZE PAGE_SIZE 83 84 85 #define ELF_CORE_COPY_REGS(_dest, _regs) \ 86 memcpy((char *) &_dest, (char *) _regs, \ 87 sizeof(struct pt_regs)); 88 89 /* This yields a mask that user programs can use to figure out what 90 * instruction set this CPU supports. This could be done in user space, 91 * but it's not easy, and we've already done it here. 92 */ 93 #define ELF_HWCAP (0) 94 95 /* This yields a string that ld.so will use to load implementation 96 * specific libraries for optimization. This is more specific in 97 * intent than poking at uname or /proc/cpuinfo. 98 99 * For the moment, we have only optimizations for the Intel generations, 100 * but that could change... 101 */ 102 #define ELF_PLATFORM (NULL) 103 104 /* Added _f parameter. Is this definition correct: TBD */ 105 #define ELF_PLAT_INIT(_r, _f) \ 106 do { \ 107 _r->r1 = _r->r1 = _r->r2 = _r->r3 = \ 108 _r->r4 = _r->r5 = _r->r6 = _r->r7 = \ 109 _r->r8 = _r->r9 = _r->r10 = _r->r11 = \ 110 _r->r12 = _r->r13 = _r->r14 = _r->r15 = \ 111 _r->r16 = _r->r17 = _r->r18 = _r->r19 = \ 112 _r->r20 = _r->r21 = _r->r22 = _r->r23 = \ 113 _r->r24 = _r->r25 = _r->r26 = _r->r27 = \ 114 _r->r28 = _r->r29 = _r->r30 = _r->r31 = \ 115 0; \ 116 } while (0) 117 118 #ifdef __KERNEL__ 119 #define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT) 120 #endif 121 122 #endif /* __uClinux__ */ 123 124 #endif /* _ASM_MICROBLAZE_ELF_H */ 125