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