300 lines
12 KiB
C
300 lines
12 KiB
C
/* NDS32 ELF support for BFD.
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Copyright (C) 2012-2014 Free Software Foundation, Inc.
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Contributed by Andes Technology Corporation.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef _ELF_NDS32_H
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#define _ELF_NDS32_H
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#include "elf/reloc-macros.h"
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/* Relocations. */
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START_RELOC_NUMBERS (elf_nds32_reloc_type)
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RELOC_NUMBER (R_NDS32_NONE, 0)
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/* REL relocations. */
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RELOC_NUMBER (R_NDS32_16, 1)
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RELOC_NUMBER (R_NDS32_32, 2)
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RELOC_NUMBER (R_NDS32_20, 3)
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RELOC_NUMBER (R_NDS32_9_PCREL, 4)
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RELOC_NUMBER (R_NDS32_15_PCREL, 5)
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RELOC_NUMBER (R_NDS32_17_PCREL, 6)
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RELOC_NUMBER (R_NDS32_25_PCREL, 7)
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RELOC_NUMBER (R_NDS32_HI20, 8)
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RELOC_NUMBER (R_NDS32_LO12S3, 9)
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RELOC_NUMBER (R_NDS32_LO12S2, 10)
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RELOC_NUMBER (R_NDS32_LO12S1, 11)
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RELOC_NUMBER (R_NDS32_LO12S0, 12)
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RELOC_NUMBER (R_NDS32_SDA15S3, 13)
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RELOC_NUMBER (R_NDS32_SDA15S2, 14)
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RELOC_NUMBER (R_NDS32_SDA15S1, 15)
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RELOC_NUMBER (R_NDS32_SDA15S0, 16)
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RELOC_NUMBER (R_NDS32_GNU_VTINHERIT, 17)
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RELOC_NUMBER (R_NDS32_GNU_VTENTRY, 18)
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/* RELA relocations. */
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RELOC_NUMBER (R_NDS32_16_RELA, 19)
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RELOC_NUMBER (R_NDS32_32_RELA, 20)
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RELOC_NUMBER (R_NDS32_20_RELA, 21)
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RELOC_NUMBER (R_NDS32_9_PCREL_RELA, 22)
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RELOC_NUMBER (R_NDS32_15_PCREL_RELA, 23)
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RELOC_NUMBER (R_NDS32_17_PCREL_RELA, 24)
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RELOC_NUMBER (R_NDS32_25_PCREL_RELA, 25)
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RELOC_NUMBER (R_NDS32_HI20_RELA, 26)
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RELOC_NUMBER (R_NDS32_LO12S3_RELA, 27)
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RELOC_NUMBER (R_NDS32_LO12S2_RELA, 28)
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RELOC_NUMBER (R_NDS32_LO12S1_RELA, 29)
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RELOC_NUMBER (R_NDS32_LO12S0_RELA, 30)
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RELOC_NUMBER (R_NDS32_SDA15S3_RELA, 31)
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RELOC_NUMBER (R_NDS32_SDA15S2_RELA, 32)
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RELOC_NUMBER (R_NDS32_SDA15S1_RELA, 33)
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RELOC_NUMBER (R_NDS32_SDA15S0_RELA, 34)
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RELOC_NUMBER (R_NDS32_RELA_GNU_VTINHERIT, 35)
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RELOC_NUMBER (R_NDS32_RELA_GNU_VTENTRY, 36)
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RELOC_NUMBER (R_NDS32_GOT20, 37)
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RELOC_NUMBER (R_NDS32_25_PLTREL, 38)
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RELOC_NUMBER (R_NDS32_COPY, 39)
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RELOC_NUMBER (R_NDS32_GLOB_DAT, 40)
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RELOC_NUMBER (R_NDS32_JMP_SLOT, 41)
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RELOC_NUMBER (R_NDS32_RELATIVE, 42)
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RELOC_NUMBER (R_NDS32_GOTOFF, 43)
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RELOC_NUMBER (R_NDS32_GOTPC20, 44)
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RELOC_NUMBER (R_NDS32_GOT_HI20, 45)
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RELOC_NUMBER (R_NDS32_GOT_LO12, 46)
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RELOC_NUMBER (R_NDS32_GOTPC_HI20, 47)
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RELOC_NUMBER (R_NDS32_GOTPC_LO12, 48)
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RELOC_NUMBER (R_NDS32_GOTOFF_HI20, 49)
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RELOC_NUMBER (R_NDS32_GOTOFF_LO12, 50)
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RELOC_NUMBER (R_NDS32_INSN16, 51)
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RELOC_NUMBER (R_NDS32_LABEL, 52)
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RELOC_NUMBER (R_NDS32_LONGCALL1, 53)
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RELOC_NUMBER (R_NDS32_LONGCALL2, 54)
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RELOC_NUMBER (R_NDS32_LONGCALL3, 55)
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RELOC_NUMBER (R_NDS32_LONGJUMP1, 56)
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RELOC_NUMBER (R_NDS32_LONGJUMP2, 57)
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RELOC_NUMBER (R_NDS32_LONGJUMP3, 58)
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RELOC_NUMBER (R_NDS32_LOADSTORE, 59)
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RELOC_NUMBER (R_NDS32_9_FIXED_RELA, 60)
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RELOC_NUMBER (R_NDS32_15_FIXED_RELA, 61)
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RELOC_NUMBER (R_NDS32_17_FIXED_RELA, 62)
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RELOC_NUMBER (R_NDS32_25_FIXED_RELA, 63)
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RELOC_NUMBER (R_NDS32_PLTREL_HI20, 64) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_PLTREL_LO12, 65) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_PLT_GOTREL_HI20, 66)
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RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO12, 67)
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RELOC_NUMBER (R_NDS32_SDA12S2_DP_RELA, 68)
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RELOC_NUMBER (R_NDS32_SDA12S2_SP_RELA, 69)
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RELOC_NUMBER (R_NDS32_LO12S2_DP_RELA, 70)
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RELOC_NUMBER (R_NDS32_LO12S2_SP_RELA, 71)
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RELOC_NUMBER (R_NDS32_LO12S0_ORI_RELA, 72)
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RELOC_NUMBER (R_NDS32_SDA16S3_RELA, 73)
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RELOC_NUMBER (R_NDS32_SDA17S2_RELA, 74)
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RELOC_NUMBER (R_NDS32_SDA18S1_RELA, 75)
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RELOC_NUMBER (R_NDS32_SDA19S0_RELA, 76)
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RELOC_NUMBER (R_NDS32_DWARF2_OP1_RELA, 77)
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RELOC_NUMBER (R_NDS32_DWARF2_OP2_RELA, 78)
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RELOC_NUMBER (R_NDS32_DWARF2_LEB_RELA, 79)
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RELOC_NUMBER (R_NDS32_UPDATE_TA_RELA, 80) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_9_PLTREL, 81)
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RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO20, 82)
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RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO15, 83)
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RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO19, 84)
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RELOC_NUMBER (R_NDS32_GOT_LO15, 85)
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RELOC_NUMBER (R_NDS32_GOT_LO19, 86)
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RELOC_NUMBER (R_NDS32_GOTOFF_LO15, 87)
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RELOC_NUMBER (R_NDS32_GOTOFF_LO19, 88)
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RELOC_NUMBER (R_NDS32_GOT15S2_RELA, 89)
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RELOC_NUMBER (R_NDS32_GOT17S2_RELA, 90)
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RELOC_NUMBER (R_NDS32_5_RELA, 91)
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RELOC_NUMBER (R_NDS32_10_UPCREL_RELA, 92) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_SDA_FP7U2_RELA, 93)
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RELOC_NUMBER (R_NDS32_WORD_9_PCREL_RELA, 94)
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RELOC_NUMBER (R_NDS32_25_ABS_RELA, 95)
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RELOC_NUMBER (R_NDS32_17IFC_PCREL_RELA, 96)
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RELOC_NUMBER (R_NDS32_10IFCU_PCREL_RELA, 97)
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RELOC_NUMBER (R_NDS32_TLS_LE_HI20, 98)
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RELOC_NUMBER (R_NDS32_TLS_LE_LO12, 99)
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RELOC_NUMBER (R_NDS32_TLS_IE_HI20, 100)
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RELOC_NUMBER (R_NDS32_TLS_IE_LO12S2, 101)
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RELOC_NUMBER (R_NDS32_TLS_TPOFF, 102)
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RELOC_NUMBER (R_NDS32_TLS_LE_20, 103)
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RELOC_NUMBER (R_NDS32_TLS_LE_15S0, 104)
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RELOC_NUMBER (R_NDS32_TLS_LE_15S1, 105)
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RELOC_NUMBER (R_NDS32_TLS_LE_15S2, 106)
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RELOC_NUMBER (R_NDS32_LONGCALL4, 107)
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RELOC_NUMBER (R_NDS32_LONGCALL5, 108)
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RELOC_NUMBER (R_NDS32_LONGCALL6, 109)
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RELOC_NUMBER (R_NDS32_LONGJUMP4, 110)
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RELOC_NUMBER (R_NDS32_LONGJUMP5, 111)
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RELOC_NUMBER (R_NDS32_LONGJUMP6, 112)
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RELOC_NUMBER (R_NDS32_LONGJUMP7, 113)
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RELOC_NUMBER (R_NDS32_RELAX_ENTRY, 192)
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RELOC_NUMBER (R_NDS32_GOT_SUFF, 193)
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RELOC_NUMBER (R_NDS32_GOTOFF_SUFF, 194)
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RELOC_NUMBER (R_NDS32_PLT_GOT_SUFF, 195)
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RELOC_NUMBER (R_NDS32_MULCALL_SUFF, 196) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_PTR, 197)
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RELOC_NUMBER (R_NDS32_PTR_COUNT, 198)
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RELOC_NUMBER (R_NDS32_PTR_RESOLVED, 199)
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RELOC_NUMBER (R_NDS32_PLTBLOCK, 200) /* This is obsoleted. */
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RELOC_NUMBER (R_NDS32_RELAX_REGION_BEGIN, 201)
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RELOC_NUMBER (R_NDS32_RELAX_REGION_END, 202)
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RELOC_NUMBER (R_NDS32_MINUEND, 203)
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RELOC_NUMBER (R_NDS32_SUBTRAHEND, 204)
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RELOC_NUMBER (R_NDS32_DIFF8, 205)
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RELOC_NUMBER (R_NDS32_DIFF16, 206)
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RELOC_NUMBER (R_NDS32_DIFF32, 207)
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RELOC_NUMBER (R_NDS32_DIFF_ULEB128, 208)
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RELOC_NUMBER (R_NDS32_DATA, 209)
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RELOC_NUMBER (R_NDS32_TRAN, 210)
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RELOC_NUMBER (R_NDS32_TLS_LE_ADD, 211)
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RELOC_NUMBER (R_NDS32_TLS_LE_LS, 212)
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RELOC_NUMBER (R_NDS32_EMPTY, 213)
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END_RELOC_NUMBERS (R_NDS32_max)
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/* Processor specific section indices. These sections do not actually
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exist. Symbols with a st_shndx field corresponding to one of these
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values have a special meaning. */
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/* Processor specific flags for the ELF header e_flags field.
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31 28 27 8 7 4 3 0
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---------------------------------------------
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| ARCH | CONFUGURAION FIELD | ABI | ELF_VER |
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--------------------------------------------- */
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/* Architechure definition. */
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/* 4-bit (b31-b28) nds32 architecture field.
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We can have up to 15 architectures; 0000 is for unknown. */
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#define EF_NDS_ARCH 0xF0000000
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#define EF_NDS_ARCH_SHIFT 28
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/* There could be more architectures. For now, only n1 and n1h. */
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#define E_NDS_ARCH_STAR_RESERVED 0x00000000
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#define E_NDS_ARCH_STAR_V1_0 0x10000000
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#define E_NDS_ARCH_STAR_V2_0 0x20000000
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#define E_NDS_ARCH_STAR_V3_0 0x30000000
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#define E_NDS_ARCH_STAR_V3_M 0x40000000
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#define E_NDS_ARCH_STAR_V0_9 0x90000000 /* Obsoleted. */
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/* n1 code. */
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#define E_N1_ARCH E_NDS_ARCH_STAR_V0_9
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/* n1h code. */
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#define E_N1H_ARCH E_NDS_ARCH_STAR_V1_0
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/* Configuration field definitioans. */
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#define EF_NDS_INST 0x0FFFFF00
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/* E_NDS_ARCH_STAR_V1_0 configuration fields.
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E_NDS_ARCH_STAR_V2_0 configuration fields.
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These are discarded in v2.
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* E_NDS32_HAS_MFUSR_PC_INST 0x00000100
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* E_NDS32_HAS_DIV_INST 0x00002000
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* E_NDS32_HAS_NO_MAC_INST 0x00100000
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These are added in v2.
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* E_NDS32_HAS_DIV_DX_INST 0x00002000
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* E_NDS32_HAS_MAC_DX_INST 0x00100000 */
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/* MFUSR rt, PC and correct ISYNC, MSYNC instructions.
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Old N1213HC has no such instructions. */
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#define E_NDS32_HAS_MFUSR_PC_INST 0x00000100 /* Reclaimed. */
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#define E_NDS32_HAS_EX9_INST 0x00000100 /* v3, ELF 1.4. */
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/* C/C++ performance extension instructions. */
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#define E_NDS32_HAS_EXT_INST 0x00000200
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/* Performance extension set II instructions. */
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#define E_NDS32_HAS_EXT2_INST 0x00000400
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/* Single precision Floating point processor instructions. */
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#define E_NDS32_HAS_FPU_INST 0x00000800
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/* Audio instructions with 32-bit audio dx.lo register. */
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#define E_NDS32_HAS_AUDIO_INST 0x00001000
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/* DIV instructions. */
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#define E_NDS32_HAS_DIV_INST 0x00002000 /* Reclaimed. */
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/* DIV instructions using d0/d1. */
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#define E_NDS32_HAS_DIV_DX_INST 0x00002000 /* v2. */
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/* 16-bit instructions. */
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#define E_NDS32_HAS_16BIT_INST 0x00004000 /* Reclaimed. */
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#define E_NDS32_HAS_IFC_INST 0x00004000 /* v3, ELF 1.4. */
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/* String operation instructions. */
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#define E_NDS32_HAS_STRING_INST 0x00008000
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/* Reduced register file. */
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#define E_NDS32_HAS_REDUCED_REGS 0x00010000
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/* Video instructions. */
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#define E_NDS32_HAS_VIDEO_INST 0x00020000 /* Reclaimed. */
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#define E_NDS32_HAS_SATURATION_INST 0x00020000 /* v3, ELF 1.4. */
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/* Encription instructions. */
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#define E_NDS32_HAS_ENCRIPT_INST 0x00040000
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/* Doulbe Precision Floating point processor instructions. */
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#define E_NDS32_HAS_FPU_DP_INST 0x00080000
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/* No MAC instruction used. */
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#define E_NDS32_HAS_NO_MAC_INST 0x00100000 /* Reclaimed when V2/V3. */
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/* MAC instruction using d0/d1. */
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#define E_NDS32_HAS_MAC_DX_INST 0x00100000 /* v2. */
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/* L2 cache instruction. */
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#define E_NDS32_HAS_L2C_INST 0x00200000
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/* FPU registers configuration when FPU SP/DP presents; 0x00c00000. */
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#define E_NDS32_FPU_REG_CONF_SHIFT 22
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#define E_NDS32_FPU_REG_CONF (0x3 << E_NDS32_FPU_REG_CONF_SHIFT)
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#define E_NDS32_FPU_REG_8SP_4DP 0x0
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#define E_NDS32_FPU_REG_16SP_8DP 0x1
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#define E_NDS32_FPU_REG_32SP_16DP 0x2
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#define E_NDS32_FPU_REG_32SP_32DP 0x3
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/* FPU MAC instruction used. */
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#define E_NDS32_HAS_FPU_MAC_INST 0x01000000
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/* <<<Empty Check>>>. */
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#define E_NDS32_NULL 0x02000000
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/* PIC enabled. */
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#define E_NDS32_HAS_PIC 0x04000000
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/* Use custom section. */
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#define E_NDS32_HAS_CUSTOM_SEC 0x08000000
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/* 4-bit for ABI signature, allow up to 16 ABIs
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0: for OLD ABI V0, phase out
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1: for V1 , starting with V0 toolchain
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2: for V2
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3: for V2FP (fs0, fs1 as function parameter)
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4: for AABI */
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/* Only old N1213HC use V0.
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New ABI is used due to return register is changed to r0 from r5. */
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#define EF_NDS_ABI 0x000000F0
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#define EF_NDS_ABI_SHIFT 4
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#define E_NDS_ABI_V0 0x00000000
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#define E_NDS_ABI_V1 0x00000010
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#define E_NDS_ABI_V2 0x00000020
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#define E_NDS_ABI_V2FP 0x00000030
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#define E_NDS_ABI_AABI 0x00000040
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#define E_NDS_ABI_V2FP_PLUS 0x00000050
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/* This flag signifies the version of Andes ELF.
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Some more information may exist somewhere which is TBD. */
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#define EF_NDS32_ELF_VERSION 0x0000000F
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#define EF_NDS32_ELF_VERSION_SHIFT 0
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/* Andes ELF Version 1.3 and before. */
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#define E_NDS32_ELF_VER_1_2 0x0
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/* Andes ELF Version 1.31. */
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#define E_NDS32_ELF_VER_1_3 0x1
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/* Andes ELF Version 1.4. Change the way we fix .debug_* and .gcc_except_table.
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Change three bit for EX9, IFC and SAT. */
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#define E_NDS32_ELF_VER_1_4 0x2
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#endif
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