1 /* 2 * Port on Texas Instruments TMS320C6x architecture 3 * 4 * Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated 5 * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #ifndef _ASM_C6X_ELF_H 12 #define _ASM_C6X_ELF_H 13 14 /* 15 * ELF register definitions.. 16 */ 17 #include <asm/ptrace.h> 18 19 typedef unsigned long elf_greg_t; 20 typedef unsigned long elf_fpreg_t; 21 22 #define ELF_NGREG 58 23 #define ELF_NFPREG 1 24 25 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 26 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; 27 28 /* 29 * This is used to ensure we don't load something for the wrong architecture. 30 */ 31 #define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000) 32 33 #define elf_check_const_displacement(x) (1) 34 35 /* 36 * These are used to set parameters in the core dumps. 37 */ 38 #ifdef __LITTLE_ENDIAN__ 39 #define ELF_DATA ELFDATA2LSB 40 #else 41 #define ELF_DATA ELFDATA2MSB 42 #endif 43 44 #define ELF_CLASS ELFCLASS32 45 #define ELF_ARCH EM_TI_C6000 46 47 /* Nothing for now. Need to setup DP... */ 48 #define ELF_PLAT_INIT(_r) 49 50 #define USE_ELF_CORE_DUMP 51 #define ELF_EXEC_PAGESIZE 4096 52 53 #define ELF_CORE_COPY_REGS(_dest, _regs) \ 54 memcpy((char *) &_dest, (char *) _regs, \ 55 sizeof(struct pt_regs)); 56 57 /* This yields a mask that user programs can use to figure out what 58 instruction set this cpu supports. */ 59 60 #define ELF_HWCAP (0) 61 62 /* This yields a string that ld.so will use to load implementation 63 specific libraries for optimization. This is more specific in 64 intent than poking at uname or /proc/cpuinfo. */ 65 66 #define ELF_PLATFORM (NULL) 67 68 #define SET_PERSONALITY(ex) set_personality(PER_LINUX) 69 70 /* C6X specific section types */ 71 #define SHT_C6000_UNWIND 0x70000001 72 #define SHT_C6000_PREEMPTMAP 0x70000002 73 #define SHT_C6000_ATTRIBUTES 0x70000003 74 75 /* C6X specific DT_ tags */ 76 #define DT_C6000_DSBT_BASE 0x70000000 77 #define DT_C6000_DSBT_SIZE 0x70000001 78 #define DT_C6000_PREEMPTMAP 0x70000002 79 #define DT_C6000_DSBT_INDEX 0x70000003 80 81 /* C6X specific relocs */ 82 #define R_C6000_NONE 0 83 #define R_C6000_ABS32 1 84 #define R_C6000_ABS16 2 85 #define R_C6000_ABS8 3 86 #define R_C6000_PCR_S21 4 87 #define R_C6000_PCR_S12 5 88 #define R_C6000_PCR_S10 6 89 #define R_C6000_PCR_S7 7 90 #define R_C6000_ABS_S16 8 91 #define R_C6000_ABS_L16 9 92 #define R_C6000_ABS_H16 10 93 #define R_C6000_SBR_U15_B 11 94 #define R_C6000_SBR_U15_H 12 95 #define R_C6000_SBR_U15_W 13 96 #define R_C6000_SBR_S16 14 97 #define R_C6000_SBR_L16_B 15 98 #define R_C6000_SBR_L16_H 16 99 #define R_C6000_SBR_L16_W 17 100 #define R_C6000_SBR_H16_B 18 101 #define R_C6000_SBR_H16_H 19 102 #define R_C6000_SBR_H16_W 20 103 #define R_C6000_SBR_GOT_U15_W 21 104 #define R_C6000_SBR_GOT_L16_W 22 105 #define R_C6000_SBR_GOT_H16_W 23 106 #define R_C6000_DSBT_INDEX 24 107 #define R_C6000_PREL31 25 108 #define R_C6000_COPY 26 109 #define R_C6000_ALIGN 253 110 #define R_C6000_FPHEAD 254 111 #define R_C6000_NOCMP 255 112 113 #endif /*_ASM_C6X_ELF_H */ 114