| /* |
| * Port on Texas Instruments TMS320C6x architecture |
| * |
| * Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated |
| * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #ifndef _ASM_C6X_ELF_H |
| #define _ASM_C6X_ELF_H |
| |
| /* |
| * ELF register definitions.. |
| */ |
| #include <asm/ptrace.h> |
| |
| typedef unsigned long elf_greg_t; |
| typedef unsigned long elf_fpreg_t; |
| |
| #define ELF_NGREG 58 |
| #define ELF_NFPREG 1 |
| |
| typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; |
| |
| /* |
| * This is used to ensure we don't load something for the wrong architecture. |
| */ |
| #define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000) |
| |
| #define elf_check_fdpic(x) (1) |
| #define elf_check_const_displacement(x) (0) |
| |
| #define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \ |
| do { \ |
| _regs->b4 = (_exec_map); \ |
| _regs->a6 = (_interp_map); \ |
| _regs->b6 = (_dynamic_addr); \ |
| } while (0) |
| |
| #define ELF_FDPIC_CORE_EFLAGS 0 |
| |
| #define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */ |
| |
| /* |
| * These are used to set parameters in the core dumps. |
| */ |
| #ifdef __LITTLE_ENDIAN__ |
| #define ELF_DATA ELFDATA2LSB |
| #else |
| #define ELF_DATA ELFDATA2MSB |
| #endif |
| |
| #define ELF_CLASS ELFCLASS32 |
| #define ELF_ARCH EM_TI_C6000 |
| |
| /* Nothing for now. Need to setup DP... */ |
| #define ELF_PLAT_INIT(_r) |
| |
| #define USE_ELF_CORE_DUMP |
| #define ELF_EXEC_PAGESIZE 4096 |
| |
| #define ELF_CORE_COPY_REGS(_dest, _regs) \ |
| memcpy((char *) &_dest, (char *) _regs, \ |
| sizeof(struct pt_regs)); |
| |
| /* This yields a mask that user programs can use to figure out what |
| instruction set this cpu supports. */ |
| |
| #define ELF_HWCAP (0) |
| |
| /* This yields a string that ld.so will use to load implementation |
| specific libraries for optimization. This is more specific in |
| intent than poking at uname or /proc/cpuinfo. */ |
| |
| #define ELF_PLATFORM (NULL) |
| |
| /* C6X specific section types */ |
| #define SHT_C6000_UNWIND 0x70000001 |
| #define SHT_C6000_PREEMPTMAP 0x70000002 |
| #define SHT_C6000_ATTRIBUTES 0x70000003 |
| |
| /* C6X specific DT_ tags */ |
| #define DT_C6000_DSBT_BASE 0x70000000 |
| #define DT_C6000_DSBT_SIZE 0x70000001 |
| #define DT_C6000_PREEMPTMAP 0x70000002 |
| #define DT_C6000_DSBT_INDEX 0x70000003 |
| |
| /* C6X specific relocs */ |
| #define R_C6000_NONE 0 |
| #define R_C6000_ABS32 1 |
| #define R_C6000_ABS16 2 |
| #define R_C6000_ABS8 3 |
| #define R_C6000_PCR_S21 4 |
| #define R_C6000_PCR_S12 5 |
| #define R_C6000_PCR_S10 6 |
| #define R_C6000_PCR_S7 7 |
| #define R_C6000_ABS_S16 8 |
| #define R_C6000_ABS_L16 9 |
| #define R_C6000_ABS_H16 10 |
| #define R_C6000_SBR_U15_B 11 |
| #define R_C6000_SBR_U15_H 12 |
| #define R_C6000_SBR_U15_W 13 |
| #define R_C6000_SBR_S16 14 |
| #define R_C6000_SBR_L16_B 15 |
| #define R_C6000_SBR_L16_H 16 |
| #define R_C6000_SBR_L16_W 17 |
| #define R_C6000_SBR_H16_B 18 |
| #define R_C6000_SBR_H16_H 19 |
| #define R_C6000_SBR_H16_W 20 |
| #define R_C6000_SBR_GOT_U15_W 21 |
| #define R_C6000_SBR_GOT_L16_W 22 |
| #define R_C6000_SBR_GOT_H16_W 23 |
| #define R_C6000_DSBT_INDEX 24 |
| #define R_C6000_PREL31 25 |
| #define R_C6000_COPY 26 |
| #define R_C6000_ALIGN 253 |
| #define R_C6000_FPHEAD 254 |
| #define R_C6000_NOCMP 255 |
| |
| #endif /*_ASM_C6X_ELF_H */ |
