projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 ELF constant and register definitions |
| 2 | * | |
| 3 | * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. | |
| 4 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 5 | * Written by David Howells ([email protected]) | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public Licence | |
| 9 | * as published by the Free Software Foundation; either version | |
| 10 | * 2 of the Licence, or (at your option) any later version. | |
| 11 | */ | |
| 12 | #ifndef _ASM_ELF_H | |
| 13 | #define _ASM_ELF_H | |
| 14 | ||
| 15 | #include <linux/utsname.h> | |
| 16 | #include <asm/ptrace.h> | |
| 17 | #include <asm/user.h> | |
| 18 | ||
| 19 | /* | |
| 20 | * AM33 relocations | |
| 21 | */ | |
| 22 | #define R_MN10300_NONE 0 /* No reloc. */ | |
| 23 | #define R_MN10300_32 1 /* Direct 32 bit. */ | |
| 24 | #define R_MN10300_16 2 /* Direct 16 bit. */ | |
| 25 | #define R_MN10300_8 3 /* Direct 8 bit. */ | |
| 26 | #define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */ | |
| 27 | #define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */ | |
| 28 | #define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */ | |
| 29 | #define R_MN10300_24 9 /* Direct 24 bit. */ | |
| 30 | #define R_MN10300_RELATIVE 23 /* Adjust by program base. */ | |
| 31 | ||
| 32 | /* | |
| 33 | * ELF register definitions.. | |
| 34 | */ | |
| 35 | typedef unsigned long elf_greg_t; | |
| 36 | ||
| 37 | #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) | |
| 38 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
| 39 | ||
| 40 | #define ELF_NFPREG 32 | |
| 41 | typedef float elf_fpreg_t; | |
| 42 | ||
| 43 | typedef struct { | |
| 44 | elf_fpreg_t fpregs[ELF_NFPREG]; | |
| 45 | u_int32_t fpcr; | |
| 46 | } elf_fpregset_t; | |
| 47 | ||
| 48 | extern int dump_fpu(struct pt_regs *, elf_fpregset_t *); | |
| 49 | ||
| 50 | /* | |
| 51 | * This is used to ensure we don't load something for the wrong architecture | |
| 52 | */ | |
| 53 | #define elf_check_arch(x) \ | |
| 54 | (((x)->e_machine == EM_CYGNUS_MN10300) || \ | |
| 55 | ((x)->e_machine == EM_MN10300)) | |
| 56 | ||
| 57 | /* | |
| 58 | * These are used to set parameters in the core dumps. | |
| 59 | */ | |
| 60 | #define ELF_CLASS ELFCLASS32 | |
| 61 | #define ELF_DATA ELFDATA2LSB | |
| 62 | #define ELF_ARCH EM_MN10300 | |
| 63 | ||
| 64 | /* | |
| 65 | * ELF process initialiser | |
| 66 | */ | |
| 67 | #define ELF_PLAT_INIT(_r, load_addr) \ | |
| 68 | do { \ | |
| 69 | struct pt_regs *_ur = current->thread.uregs; \ | |
| 70 | _ur->a3 = 0; _ur->a2 = 0; _ur->d3 = 0; _ur->d2 = 0; \ | |
| 71 | _ur->mcvf = 0; _ur->mcrl = 0; _ur->mcrh = 0; _ur->mdrq = 0; \ | |
| 72 | _ur->e1 = 0; _ur->e0 = 0; _ur->e7 = 0; _ur->e6 = 0; \ | |
| 73 | _ur->e5 = 0; _ur->e4 = 0; _ur->e3 = 0; _ur->e2 = 0; \ | |
| 74 | _ur->lar = 0; _ur->lir = 0; _ur->mdr = 0; \ | |
| 75 | _ur->a1 = 0; _ur->a0 = 0; _ur->d1 = 0; _ur->d0 = 0; \ | |
| 76 | } while (0) | |
| 77 | ||
| 78 | #define USE_ELF_CORE_DUMP | |
| 79 | #define ELF_EXEC_PAGESIZE 4096 | |
| 80 | ||
| 81 | /* | |
| 82 | * This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
| 83 | * use of this is to invoke "./ld.so someprog" to test out a new version of | |
| 84 | * the loader. We need to make sure that it is out of the way of the program | |
| 85 | * that it will "exec", and that there is sufficient room for the brk. | |
| 86 | * - must clear the VMALLOC area | |
| 87 | */ | |
| 88 | #define ELF_ET_DYN_BASE 0x04000000 | |
| 89 | ||
| 90 | /* | |
| 91 | * regs is struct pt_regs, pr_reg is elf_gregset_t (which is | |
| 92 | * now struct user_regs, they are different) | |
| 93 | * - ELF_CORE_COPY_REGS has been guessed, and may be wrong | |
| 94 | */ | |
| 95 | #define ELF_CORE_COPY_REGS(pr_reg, regs) \ | |
| 96 | do { \ | |
| 97 | pr_reg[0] = regs->a3; \ | |
| 98 | pr_reg[1] = regs->a2; \ | |
| 99 | pr_reg[2] = regs->d3; \ | |
| 100 | pr_reg[3] = regs->d2; \ | |
| 101 | pr_reg[4] = regs->mcvf; \ | |
| 102 | pr_reg[5] = regs->mcrl; \ | |
| 103 | pr_reg[6] = regs->mcrh; \ | |
| 104 | pr_reg[7] = regs->mdrq; \ | |
| 105 | pr_reg[8] = regs->e1; \ | |
| 106 | pr_reg[9] = regs->e0; \ | |
| 107 | pr_reg[10] = regs->e7; \ | |
| 108 | pr_reg[11] = regs->e6; \ | |
| 109 | pr_reg[12] = regs->e5; \ | |
| 110 | pr_reg[13] = regs->e4; \ | |
| 111 | pr_reg[14] = regs->e3; \ | |
| 112 | pr_reg[15] = regs->e2; \ | |
| 113 | pr_reg[16] = regs->sp; \ | |
| 114 | pr_reg[17] = regs->lar; \ | |
| 115 | pr_reg[18] = regs->lir; \ | |
| 116 | pr_reg[19] = regs->mdr; \ | |
| 117 | pr_reg[20] = regs->a1; \ | |
| 118 | pr_reg[21] = regs->a0; \ | |
| 119 | pr_reg[22] = regs->d1; \ | |
| 120 | pr_reg[23] = regs->d0; \ | |
| 121 | pr_reg[24] = regs->orig_d0; \ | |
| 122 | pr_reg[25] = regs->epsw; \ | |
| 123 | pr_reg[26] = regs->pc; \ | |
| 124 | } while (0); | |
| 125 | ||
| 126 | /* | |
| 127 | * This yields a mask that user programs can use to figure out what | |
| 128 | * instruction set this CPU supports. This could be done in user space, | |
| 129 | * but it's not easy, and we've already done it here. | |
| 130 | */ | |
| 131 | #define ELF_HWCAP (0) | |
| 132 | ||
| 133 | /* | |
| 134 | * This yields a string that ld.so will use to load implementation | |
| 135 | * specific libraries for optimization. This is more specific in | |
| 136 | * intent than poking at uname or /proc/cpuinfo. | |
| 137 | * | |
| 138 | * For the moment, we have only optimizations for the Intel generations, | |
| 139 | * but that could change... | |
| 140 | */ | |
| 141 | #define ELF_PLATFORM (NULL) | |
| 142 | ||
| 143 | #ifdef __KERNEL__ | |
| 144 | #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX) | |
| 145 | #endif | |
| 146 | ||
| 147 | #endif /* _ASM_ELF_H */ |