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120 lines
3.0 KiB
120 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot ([email protected]) |
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*/ |
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#ifndef _ASM_C6X_ELF_H |
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#define _ASM_C6X_ELF_H |
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/* |
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* ELF register definitions.. |
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*/ |
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#include <asm/ptrace.h> |
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typedef unsigned long elf_greg_t; |
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typedef unsigned long elf_fpreg_t; |
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#define ELF_NGREG 58 |
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#define ELF_NFPREG 1 |
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typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
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typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; |
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/* |
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* This is used to ensure we don't load something for the wrong architecture. |
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*/ |
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#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000) |
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#define elf_check_fdpic(x) (1) |
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#define elf_check_const_displacement(x) (0) |
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#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \ |
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do { \ |
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_regs->b4 = (_exec_map); \ |
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_regs->a6 = (_interp_map); \ |
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_regs->b6 = (_dynamic_addr); \ |
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} while (0) |
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#define ELF_FDPIC_CORE_EFLAGS 0 |
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#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */ |
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/* |
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* These are used to set parameters in the core dumps. |
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*/ |
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#ifdef __LITTLE_ENDIAN__ |
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#define ELF_DATA ELFDATA2LSB |
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#else |
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#define ELF_DATA ELFDATA2MSB |
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#endif |
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#define ELF_CLASS ELFCLASS32 |
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#define ELF_ARCH EM_TI_C6000 |
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/* Nothing for now. Need to setup DP... */ |
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#define ELF_PLAT_INIT(_r) |
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#define USE_ELF_CORE_DUMP |
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#define ELF_EXEC_PAGESIZE 4096 |
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#define ELF_CORE_COPY_REGS(_dest, _regs) \ |
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memcpy((char *) &_dest, (char *) _regs, \ |
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sizeof(struct pt_regs)); |
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/* This yields a mask that user programs can use to figure out what |
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instruction set this cpu supports. */ |
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#define ELF_HWCAP (0) |
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/* This yields a string that ld.so will use to load implementation |
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specific libraries for optimization. This is more specific in |
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intent than poking at uname or /proc/cpuinfo. */ |
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#define ELF_PLATFORM (NULL) |
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/* C6X specific section types */ |
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#define SHT_C6000_UNWIND 0x70000001 |
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#define SHT_C6000_PREEMPTMAP 0x70000002 |
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#define SHT_C6000_ATTRIBUTES 0x70000003 |
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/* C6X specific DT_ tags */ |
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#define DT_C6000_DSBT_BASE 0x70000000 |
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#define DT_C6000_DSBT_SIZE 0x70000001 |
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#define DT_C6000_PREEMPTMAP 0x70000002 |
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#define DT_C6000_DSBT_INDEX 0x70000003 |
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/* C6X specific relocs */ |
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#define R_C6000_NONE 0 |
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#define R_C6000_ABS32 1 |
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#define R_C6000_ABS16 2 |
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#define R_C6000_ABS8 3 |
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#define R_C6000_PCR_S21 4 |
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#define R_C6000_PCR_S12 5 |
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#define R_C6000_PCR_S10 6 |
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#define R_C6000_PCR_S7 7 |
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#define R_C6000_ABS_S16 8 |
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#define R_C6000_ABS_L16 9 |
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#define R_C6000_ABS_H16 10 |
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#define R_C6000_SBR_U15_B 11 |
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#define R_C6000_SBR_U15_H 12 |
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#define R_C6000_SBR_U15_W 13 |
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#define R_C6000_SBR_S16 14 |
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#define R_C6000_SBR_L16_B 15 |
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#define R_C6000_SBR_L16_H 16 |
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#define R_C6000_SBR_L16_W 17 |
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#define R_C6000_SBR_H16_B 18 |
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#define R_C6000_SBR_H16_H 19 |
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#define R_C6000_SBR_H16_W 20 |
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#define R_C6000_SBR_GOT_U15_W 21 |
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#define R_C6000_SBR_GOT_L16_W 22 |
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#define R_C6000_SBR_GOT_H16_W 23 |
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#define R_C6000_DSBT_INDEX 24 |
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#define R_C6000_PREL31 25 |
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#define R_C6000_COPY 26 |
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#define R_C6000_ALIGN 253 |
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#define R_C6000_FPHEAD 254 |
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#define R_C6000_NOCMP 255 |
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#endif /*_ASM_C6X_ELF_H */
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