/* 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 (aurelien.jacquiot@jaluna.com)
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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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