| /* NDS32 ELF support for BFD. |
| Copyright (C) 2012-2021 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" |
| |
| START_RELOC_NUMBERS (elf_nds32_reloc_type) |
| /* These used for relocations. */ |
| 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) |
| /* GOT and PLT. */ |
| 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) |
| /* 32_to_16 relaxations. */ |
| RELOC_NUMBER (R_NDS32_INSN16, 51) |
| /* Alignment tag. */ |
| RELOC_NUMBER (R_NDS32_LABEL, 52) |
| RELOC_NUMBER (R_NDS32_LONGCALL1, 53) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LONGCALL2, 54) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LONGCALL3, 55) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LONGJUMP1, 56) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LONGJUMP2, 57) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LONGJUMP3, 58) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_LOADSTORE, 59) /* This is obsoleted. */ |
| 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) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_DWARF2_OP2_RELA, 78) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_DWARF2_LEB_RELA, 79) /* This is obsoleted. */ |
| 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) /* This is obsoleted. */ |
| RELOC_NUMBER (R_NDS32_10IFCU_PCREL_RELA, 97) /* This is obsoleted. */ |
| /* TLS support. */ |
| 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) |
| /* Reserved numbers: 114. */ |
| /* TLS support */ |
| RELOC_NUMBER (R_NDS32_TLS_IE_LO12, 115) |
| RELOC_NUMBER (R_NDS32_TLS_IEGP_HI20, 116) |
| RELOC_NUMBER (R_NDS32_TLS_IEGP_LO12, 117) |
| RELOC_NUMBER (R_NDS32_TLS_IEGP_LO12S2, 118) |
| RELOC_NUMBER (R_NDS32_TLS_DESC, 119) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_HI20, 120) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_LO12, 121) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_20, 122) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_SDA17S2, 123) |
| /* Reserved numbers: 124-191. */ |
| |
| /* These used only for relaxations */ |
| 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) |
| /* TLS support */ |
| RELOC_NUMBER (R_NDS32_TLS_LE_ADD, 211) |
| RELOC_NUMBER (R_NDS32_TLS_LE_LS, 212) |
| RELOC_NUMBER (R_NDS32_EMPTY, 213) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_ADD, 214) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_FUNC, 215) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_CALL, 216) |
| RELOC_NUMBER (R_NDS32_TLS_DESC_MEM, 217) |
| RELOC_NUMBER (R_NDS32_RELAX_REMOVE, 218) |
| RELOC_NUMBER (R_NDS32_RELAX_GROUP, 219) |
| RELOC_NUMBER (R_NDS32_TLS_IEGP_LW, 220) |
| RELOC_NUMBER (R_NDS32_LSI, 221) |
| /* Reserved numbers: 222-255. */ |
| |
| 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. */ |
| /* 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. */ |
| /* 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 |
| /* DSP extension. */ |
| #define E_NDS32_HAS_DSP_INST 0x02000000 |
| /* PIC enabled. */ |
| #define E_NDS32_HAS_PIC 0x04000000 |
| /* Use custom section. */ |
| #define E_NDS32_HAS_CUSTOM_SEC 0x08000000 |
| /* Hardware zero-overhead loop enabled. */ |
| #define E_NDS32_HAS_ZOL (1 << 26) |
| |
| /* 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 SAT. */ |
| #define E_NDS32_ELF_VER_1_4 0x2 |
| |
| #endif |
