/* NDS32 ELF support for BFD.

   Copyright (C) 2012-2018 Free Software Foundation, Inc.

   Contributed by Andes Technology Corporation.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA

   02110-1301, USA.  */

#ifndef _ELF_NDS32_H

#define _ELF_NDS32_H

#include "elf/reloc-macros.h"

/* Relocations.  */

START_RELOC_NUMBERS (elf_nds32_reloc_type)

  RELOC_NUMBER (R_NDS32_NONE, 0)

  /* REL relocations.  */

  RELOC_NUMBER (R_NDS32_16, 1)

  RELOC_NUMBER (R_NDS32_32, 2)

  RELOC_NUMBER (R_NDS32_20, 3)

  RELOC_NUMBER (R_NDS32_9_PCREL, 4)

  RELOC_NUMBER (R_NDS32_15_PCREL, 5)

  RELOC_NUMBER (R_NDS32_17_PCREL, 6)

  RELOC_NUMBER (R_NDS32_25_PCREL, 7)

  RELOC_NUMBER (R_NDS32_HI20, 8)

  RELOC_NUMBER (R_NDS32_LO12S3, 9)

  RELOC_NUMBER (R_NDS32_LO12S2, 10)

  RELOC_NUMBER (R_NDS32_LO12S1, 11)

  RELOC_NUMBER (R_NDS32_LO12S0, 12)

  RELOC_NUMBER (R_NDS32_SDA15S3, 13)

  RELOC_NUMBER (R_NDS32_SDA15S2, 14)

  RELOC_NUMBER (R_NDS32_SDA15S1, 15)

  RELOC_NUMBER (R_NDS32_SDA15S0, 16)

  RELOC_NUMBER (R_NDS32_GNU_VTINHERIT, 17)

  RELOC_NUMBER (R_NDS32_GNU_VTENTRY, 18)

  /* RELA relocations.  */

  RELOC_NUMBER (R_NDS32_16_RELA, 19)

  RELOC_NUMBER (R_NDS32_32_RELA, 20)

  RELOC_NUMBER (R_NDS32_20_RELA, 21)

  RELOC_NUMBER (R_NDS32_9_PCREL_RELA, 22)

  RELOC_NUMBER (R_NDS32_15_PCREL_RELA, 23)

  RELOC_NUMBER (R_NDS32_17_PCREL_RELA, 24)

  RELOC_NUMBER (R_NDS32_25_PCREL_RELA, 25)

  RELOC_NUMBER (R_NDS32_HI20_RELA, 26)

  RELOC_NUMBER (R_NDS32_LO12S3_RELA, 27)

  RELOC_NUMBER (R_NDS32_LO12S2_RELA, 28)

  RELOC_NUMBER (R_NDS32_LO12S1_RELA, 29)

  RELOC_NUMBER (R_NDS32_LO12S0_RELA, 30)

  RELOC_NUMBER (R_NDS32_SDA15S3_RELA, 31)

  RELOC_NUMBER (R_NDS32_SDA15S2_RELA, 32)

  RELOC_NUMBER (R_NDS32_SDA15S1_RELA, 33)

  RELOC_NUMBER (R_NDS32_SDA15S0_RELA, 34)

  RELOC_NUMBER (R_NDS32_RELA_GNU_VTINHERIT, 35)

  RELOC_NUMBER (R_NDS32_RELA_GNU_VTENTRY, 36)

  RELOC_NUMBER (R_NDS32_GOT20, 37)

  RELOC_NUMBER (R_NDS32_25_PLTREL, 38)

  RELOC_NUMBER (R_NDS32_COPY, 39)

  RELOC_NUMBER (R_NDS32_GLOB_DAT, 40)

  RELOC_NUMBER (R_NDS32_JMP_SLOT, 41)

  RELOC_NUMBER (R_NDS32_RELATIVE, 42)

  RELOC_NUMBER (R_NDS32_GOTOFF, 43)

  RELOC_NUMBER (R_NDS32_GOTPC20, 44)

  RELOC_NUMBER (R_NDS32_GOT_HI20, 45)

  RELOC_NUMBER (R_NDS32_GOT_LO12, 46)

  RELOC_NUMBER (R_NDS32_GOTPC_HI20, 47)

  RELOC_NUMBER (R_NDS32_GOTPC_LO12, 48)

  RELOC_NUMBER (R_NDS32_GOTOFF_HI20, 49)

  RELOC_NUMBER (R_NDS32_GOTOFF_LO12, 50)

  RELOC_NUMBER (R_NDS32_INSN16, 51)

  RELOC_NUMBER (R_NDS32_LABEL, 52)

  RELOC_NUMBER (R_NDS32_LONGCALL1, 53)

  RELOC_NUMBER (R_NDS32_LONGCALL2, 54)

  RELOC_NUMBER (R_NDS32_LONGCALL3, 55)

  RELOC_NUMBER (R_NDS32_LONGJUMP1, 56)

  RELOC_NUMBER (R_NDS32_LONGJUMP2, 57)

  RELOC_NUMBER (R_NDS32_LONGJUMP3, 58)

  RELOC_NUMBER (R_NDS32_LOADSTORE, 59)

  RELOC_NUMBER (R_NDS32_9_FIXED_RELA, 60)

  RELOC_NUMBER (R_NDS32_15_FIXED_RELA, 61)

  RELOC_NUMBER (R_NDS32_17_FIXED_RELA, 62)

  RELOC_NUMBER (R_NDS32_25_FIXED_RELA, 63)

  RELOC_NUMBER (R_NDS32_PLTREL_HI20, 64)	/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_PLTREL_LO12, 65)	/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_PLT_GOTREL_HI20, 66)

  RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO12, 67)

  RELOC_NUMBER (R_NDS32_SDA12S2_DP_RELA, 68)

  RELOC_NUMBER (R_NDS32_SDA12S2_SP_RELA, 69)

  RELOC_NUMBER (R_NDS32_LO12S2_DP_RELA, 70)

  RELOC_NUMBER (R_NDS32_LO12S2_SP_RELA, 71)

  RELOC_NUMBER (R_NDS32_LO12S0_ORI_RELA, 72)

  RELOC_NUMBER (R_NDS32_SDA16S3_RELA, 73)

  RELOC_NUMBER (R_NDS32_SDA17S2_RELA, 74)

  RELOC_NUMBER (R_NDS32_SDA18S1_RELA, 75)

  RELOC_NUMBER (R_NDS32_SDA19S0_RELA, 76)

  RELOC_NUMBER (R_NDS32_DWARF2_OP1_RELA, 77)

  RELOC_NUMBER (R_NDS32_DWARF2_OP2_RELA, 78)

  RELOC_NUMBER (R_NDS32_DWARF2_LEB_RELA, 79)

  RELOC_NUMBER (R_NDS32_UPDATE_TA_RELA, 80)	/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_9_PLTREL, 81)

  RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO20, 82)

  RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO15, 83)

  RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO19, 84)

  RELOC_NUMBER (R_NDS32_GOT_LO15, 85)

  RELOC_NUMBER (R_NDS32_GOT_LO19, 86)

  RELOC_NUMBER (R_NDS32_GOTOFF_LO15, 87)

  RELOC_NUMBER (R_NDS32_GOTOFF_LO19, 88)

  RELOC_NUMBER (R_NDS32_GOT15S2_RELA, 89)

  RELOC_NUMBER (R_NDS32_GOT17S2_RELA, 90)

  RELOC_NUMBER (R_NDS32_5_RELA, 91)

  RELOC_NUMBER (R_NDS32_10_UPCREL_RELA, 92)	/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_SDA_FP7U2_RELA, 93)

  RELOC_NUMBER (R_NDS32_WORD_9_PCREL_RELA, 94)

  RELOC_NUMBER (R_NDS32_25_ABS_RELA, 95)

  RELOC_NUMBER (R_NDS32_17IFC_PCREL_RELA, 96)

  RELOC_NUMBER (R_NDS32_10IFCU_PCREL_RELA, 97)

  RELOC_NUMBER (R_NDS32_TLS_LE_HI20, 98)

  RELOC_NUMBER (R_NDS32_TLS_LE_LO12, 99)

  RELOC_NUMBER (R_NDS32_TLS_IE_HI20, 100)

  RELOC_NUMBER (R_NDS32_TLS_IE_LO12S2, 101)

  RELOC_NUMBER (R_NDS32_TLS_TPOFF, 102)

  RELOC_NUMBER (R_NDS32_TLS_LE_20, 103)

  RELOC_NUMBER (R_NDS32_TLS_LE_15S0, 104)

  RELOC_NUMBER (R_NDS32_TLS_LE_15S1, 105)

  RELOC_NUMBER (R_NDS32_TLS_LE_15S2, 106)

  RELOC_NUMBER (R_NDS32_LONGCALL4, 107)

  RELOC_NUMBER (R_NDS32_LONGCALL5, 108)

  RELOC_NUMBER (R_NDS32_LONGCALL6, 109)

  RELOC_NUMBER (R_NDS32_LONGJUMP4, 110)

  RELOC_NUMBER (R_NDS32_LONGJUMP5, 111)

  RELOC_NUMBER (R_NDS32_LONGJUMP6, 112)

  RELOC_NUMBER (R_NDS32_LONGJUMP7, 113)

  RELOC_NUMBER (R_NDS32_RELAX_ENTRY, 192)

  RELOC_NUMBER (R_NDS32_GOT_SUFF, 193)

  RELOC_NUMBER (R_NDS32_GOTOFF_SUFF, 194)

  RELOC_NUMBER (R_NDS32_PLT_GOT_SUFF, 195)

  RELOC_NUMBER (R_NDS32_MULCALL_SUFF, 196)	/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_PTR, 197)

  RELOC_NUMBER (R_NDS32_PTR_COUNT, 198)

  RELOC_NUMBER (R_NDS32_PTR_RESOLVED, 199)

  RELOC_NUMBER (R_NDS32_PLTBLOCK, 200)		/* This is obsoleted.  */

  RELOC_NUMBER (R_NDS32_RELAX_REGION_BEGIN, 201)

  RELOC_NUMBER (R_NDS32_RELAX_REGION_END, 202)

  RELOC_NUMBER (R_NDS32_MINUEND, 203)

  RELOC_NUMBER (R_NDS32_SUBTRAHEND, 204)

  RELOC_NUMBER (R_NDS32_DIFF8, 205)

  RELOC_NUMBER (R_NDS32_DIFF16, 206)

  RELOC_NUMBER (R_NDS32_DIFF32, 207)

  RELOC_NUMBER (R_NDS32_DIFF_ULEB128, 208)

  RELOC_NUMBER (R_NDS32_DATA, 209)

  RELOC_NUMBER (R_NDS32_TRAN, 210)

  RELOC_NUMBER (R_NDS32_TLS_LE_ADD, 211)

  RELOC_NUMBER (R_NDS32_TLS_LE_LS, 212)

  RELOC_NUMBER (R_NDS32_EMPTY, 213)

END_RELOC_NUMBERS (R_NDS32_max)

/* Processor specific section indices.  These sections do not actually

   exist.  Symbols with a st_shndx field corresponding to one of these

   values have a special meaning.  */

/* Processor specific flags for the ELF header e_flags field.

   31   28 27		      8 7   4 3       0

   ---------------------------------------------

   | ARCH | CONFUGURAION FIELD | ABI | ELF_VER |

   ---------------------------------------------  */

/* Architechure definition.  */

/* 4-bit (b31-b28) nds32 architecture field.

   We can have up to 15 architectures; 0000 is for unknown.  */

#define EF_NDS_ARCH				0xF0000000

#define EF_NDS_ARCH_SHIFT			28

/* There could be more architectures. For now, only n1 and n1h.  */

#define E_NDS_ARCH_STAR_RESERVED		0x00000000

#define E_NDS_ARCH_STAR_V1_0			0x10000000

#define E_NDS_ARCH_STAR_V2_0			0x20000000

#define E_NDS_ARCH_STAR_V3_0			0x30000000

#define E_NDS_ARCH_STAR_V3_M			0x40000000

#define E_NDS_ARCH_STAR_V0_9			0x90000000	/* Obsoleted.  */

/* n1 code.  */

#define E_N1_ARCH			E_NDS_ARCH_STAR_V0_9

/* n1h code.  */

#define E_N1H_ARCH			E_NDS_ARCH_STAR_V1_0

/* Configuration field definitioans.  */

#define EF_NDS_INST				0x0FFFFF00

/* E_NDS_ARCH_STAR_V1_0 configuration fields.

   E_NDS_ARCH_STAR_V2_0 configuration fields.

   These are discarded in v2.

     * E_NDS32_HAS_MFUSR_PC_INST	0x00000100

     * E_NDS32_HAS_DIV_INST		0x00002000

     * E_NDS32_HAS_NO_MAC_INST		0x00100000

   These are added in v2.

     * E_NDS32_HAS_DIV_DX_INST		0x00002000

     * E_NDS32_HAS_MAC_DX_INST		0x00100000  */

/* MFUSR rt, PC and correct ISYNC, MSYNC instructions.

   Old N1213HC has no such instructions.  */

#define E_NDS32_HAS_MFUSR_PC_INST		0x00000100 /* Reclaimed.  */

#define E_NDS32_HAS_EX9_INST			0x00000100 /* v3, ELF 1.4.  */

/* C/C++ performance extension instructions.  */

#define E_NDS32_HAS_EXT_INST			0x00000200

/* Performance extension set II instructions.  */

#define E_NDS32_HAS_EXT2_INST			0x00000400

/* Single precision Floating point processor instructions.  */

#define E_NDS32_HAS_FPU_INST			0x00000800

/* Audio instructions with 32-bit audio dx.lo register.  */

#define E_NDS32_HAS_AUDIO_INST			0x00001000

/* DIV instructions.  */

#define E_NDS32_HAS_DIV_INST			0x00002000 /* Reclaimed.  */

/* DIV instructions using d0/d1.  */

#define E_NDS32_HAS_DIV_DX_INST			0x00002000 /* v2.  */

/* 16-bit instructions.  */

#define E_NDS32_HAS_16BIT_INST			0x00004000 /* Reclaimed.  */

#define E_NDS32_HAS_IFC_INST			0x00004000 /* v3, ELF 1.4.  */

/* String operation instructions.  */

#define E_NDS32_HAS_STRING_INST			0x00008000

/* Reduced register file.  */

#define E_NDS32_HAS_REDUCED_REGS		0x00010000

/* Video instructions.  */

#define E_NDS32_HAS_VIDEO_INST			0x00020000 /* Reclaimed.  */

#define E_NDS32_HAS_SATURATION_INST		0x00020000 /* v3, ELF 1.4.  */

/* Encription instructions.  */

#define E_NDS32_HAS_ENCRIPT_INST		0x00040000

/* Doulbe Precision Floating point processor instructions.  */

#define E_NDS32_HAS_FPU_DP_INST			0x00080000

/* No MAC instruction used.  */

#define E_NDS32_HAS_NO_MAC_INST			0x00100000 /* Reclaimed when V2/V3.  */

/* MAC instruction using d0/d1.  */

#define E_NDS32_HAS_MAC_DX_INST			0x00100000 /* v2.  */

/* L2 cache instruction.  */

#define E_NDS32_HAS_L2C_INST			0x00200000

/* FPU registers configuration when FPU SP/DP presents; 0x00c00000.  */

#define E_NDS32_FPU_REG_CONF_SHIFT		22

#define E_NDS32_FPU_REG_CONF			(0x3 << E_NDS32_FPU_REG_CONF_SHIFT)

#define E_NDS32_FPU_REG_8SP_4DP			0x0

#define E_NDS32_FPU_REG_16SP_8DP		0x1

#define E_NDS32_FPU_REG_32SP_16DP		0x2

#define E_NDS32_FPU_REG_32SP_32DP		0x3

/* FPU MAC instruction used.  */

#define E_NDS32_HAS_FPU_MAC_INST		0x01000000

/* <<<Empty Check>>>.  */

#define E_NDS32_NULL				0x02000000

/* PIC enabled.  */

#define E_NDS32_HAS_PIC				0x04000000

/* Use custom section.  */

#define E_NDS32_HAS_CUSTOM_SEC			0x08000000

/* 4-bit for ABI signature, allow up to 16 ABIs

   0: for OLD ABI V0, phase out

   1: for V1 , starting with V0 toolchain

   2: for V2

   3: for V2FP (fs0, fs1 as function parameter)

   4: for AABI  */

/* Only old N1213HC use V0.

   New ABI is used due to return register is changed to r0 from r5.  */

#define EF_NDS_ABI				0x000000F0

#define EF_NDS_ABI_SHIFT			4

#define E_NDS_ABI_V0				0x00000000

#define E_NDS_ABI_V1				0x00000010

#define E_NDS_ABI_V2				0x00000020

#define E_NDS_ABI_V2FP				0x00000030

#define E_NDS_ABI_AABI				0x00000040

#define E_NDS_ABI_V2FP_PLUS			0x00000050

/* This flag signifies the version of Andes ELF.

   Some more information may exist somewhere which is TBD.  */

#define EF_NDS32_ELF_VERSION			0x0000000F

#define EF_NDS32_ELF_VERSION_SHIFT		0

/* Andes ELF Version 1.3 and before.  */

#define E_NDS32_ELF_VER_1_2			0x0

/* Andes ELF Version 1.31.  */

#define E_NDS32_ELF_VER_1_3			0x1

/* Andes ELF Version 1.4. Change the way we fix .debug_* and .gcc_except_table.

   Change three bit for EX9, IFC and SAT.  */

#define E_NDS32_ELF_VER_1_4			0x2

#endif