Michal Simek | c6087fd | 2009-03-27 14:25:34 +0100 | [diff] [blame] | 1 | /* |
Michal Simek | e57a221 | 2009-05-26 16:30:30 +0200 | [diff] [blame] | 2 | * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> |
| 3 | * Copyright (C) 2008-2009 PetaLogix |
Michal Simek | c6087fd | 2009-03-27 14:25:34 +0100 | [diff] [blame] | 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 | |
Michal Simek | e57a221 | 2009-05-26 16:30:30 +0200 | [diff] [blame] | 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 |
| 43 | typedef 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 |
| 52 | typedef 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 */ |
| 60 | typedef unsigned long elf_fpreg_t; |
| 61 | typedef 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 | |
Michal Simek | e57a221 | 2009-05-26 16:30:30 +0200 | [diff] [blame] | 80 | #define ELF_EXEC_PAGESIZE 4096 |
| 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) \ |
| 104 | do { \ |
| 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 | |
Michal Simek | c6087fd | 2009-03-27 14:25:34 +0100 | [diff] [blame] | 122 | #endif /* _ASM_MICROBLAZE_ELF_H */ |