| /* AVR ELF support for BFD. |
| Copyright (C) 1999-2026 Free Software Foundation, Inc. |
| Contributed by Denis Chertykov <denisc@overta.ru> |
| |
| 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_AVR_H |
| #define _ELF_AVR_H |
| |
| #include "elf/reloc-macros.h" |
| #include "libiberty.h" // ARRAY_SIZE |
| |
| /* Processor specific flags for the ELF header e_flags field. */ |
| #define EF_AVR_MACH 0x7F |
| |
| /* If bit #7 is set, it is assumed that the elf file uses local symbols |
| as reference for the relocations so that linker relaxation is possible. */ |
| #define EF_AVR_LINKRELAX_PREPARED 0x80 |
| |
| #define E_AVR_MACH_AVR1 1 |
| #define E_AVR_MACH_AVR2 2 |
| #define E_AVR_MACH_AVR25 25 |
| #define E_AVR_MACH_AVR3 3 |
| #define E_AVR_MACH_AVR31 31 |
| #define E_AVR_MACH_AVR35 35 |
| #define E_AVR_MACH_AVR4 4 |
| #define E_AVR_MACH_AVR5 5 |
| #define E_AVR_MACH_AVR51 51 |
| #define E_AVR_MACH_AVR6 6 |
| #define E_AVR_MACH_AVRTINY 100 |
| #define E_AVR_MACH_XMEGA1 101 |
| #define E_AVR_MACH_XMEGA2 102 |
| #define E_AVR_MACH_XMEGA3 103 |
| #define E_AVR_MACH_XMEGA4 104 |
| #define E_AVR_MACH_XMEGA5 105 |
| #define E_AVR_MACH_XMEGA6 106 |
| #define E_AVR_MACH_XMEGA7 107 |
| |
| /* Relocations. */ |
| START_RELOC_NUMBERS (elf_avr_reloc_type) |
| RELOC_NUMBER (R_AVR_NONE, 0) |
| RELOC_NUMBER (R_AVR_32, 1) |
| RELOC_NUMBER (R_AVR_7_PCREL, 2) |
| RELOC_NUMBER (R_AVR_13_PCREL, 3) |
| RELOC_NUMBER (R_AVR_16, 4) |
| RELOC_NUMBER (R_AVR_16_PM, 5) |
| RELOC_NUMBER (R_AVR_LO8_LDI, 6) |
| RELOC_NUMBER (R_AVR_HI8_LDI, 7) |
| RELOC_NUMBER (R_AVR_HH8_LDI, 8) |
| RELOC_NUMBER (R_AVR_LO8_LDI_NEG, 9) |
| RELOC_NUMBER (R_AVR_HI8_LDI_NEG, 10) |
| RELOC_NUMBER (R_AVR_HH8_LDI_NEG, 11) |
| RELOC_NUMBER (R_AVR_LO8_LDI_PM, 12) |
| RELOC_NUMBER (R_AVR_HI8_LDI_PM, 13) |
| RELOC_NUMBER (R_AVR_HH8_LDI_PM, 14) |
| RELOC_NUMBER (R_AVR_LO8_LDI_PM_NEG, 15) |
| RELOC_NUMBER (R_AVR_HI8_LDI_PM_NEG, 16) |
| RELOC_NUMBER (R_AVR_HH8_LDI_PM_NEG, 17) |
| RELOC_NUMBER (R_AVR_CALL, 18) |
| RELOC_NUMBER (R_AVR_LDI, 19) |
| RELOC_NUMBER (R_AVR_6, 20) |
| RELOC_NUMBER (R_AVR_6_ADIW, 21) |
| RELOC_NUMBER (R_AVR_MS8_LDI, 22) |
| RELOC_NUMBER (R_AVR_MS8_LDI_NEG, 23) |
| RELOC_NUMBER (R_AVR_LO8_LDI_GS, 24) |
| RELOC_NUMBER (R_AVR_HI8_LDI_GS, 25) |
| RELOC_NUMBER (R_AVR_8, 26) |
| RELOC_NUMBER (R_AVR_8_LO8, 27) |
| RELOC_NUMBER (R_AVR_8_HI8, 28) |
| RELOC_NUMBER (R_AVR_8_HLO8, 29) |
| RELOC_NUMBER (R_AVR_DIFF8, 30) |
| RELOC_NUMBER (R_AVR_DIFF16, 31) |
| RELOC_NUMBER (R_AVR_DIFF32, 32) |
| RELOC_NUMBER (R_AVR_LDS_STS_16, 33) |
| RELOC_NUMBER (R_AVR_PORT6, 34) |
| RELOC_NUMBER (R_AVR_PORT5, 35) |
| RELOC_NUMBER (R_AVR_32_PCREL, 36) |
| END_RELOC_NUMBERS (R_AVR_max) |
| |
| |
| // Object attribute tags. |
| enum |
| { |
| // 0-3 are generic. |
| |
| // VTABLE is located in some named address space. |
| Tag_GNU_AVR_VTABLE_AS = 4, |
| }; |
| |
| |
| // Object attribute values. |
| enum |
| { |
| // There's no VTABLE instance or VTABLE access in the ojbect file. |
| Val_GNU_AVR_VTABLE_NONE = 0, |
| |
| // When the module hosts or reads a VTABLE, then Tag_GNU_AVR_VTABLE_AS is |
| // one plus AVR GCC's address space enum from <GCC>/gcc/config/avr/avr.h. |
| |
| // VTABLE is located in AS0, the generic address space (RAM). |
| // This includes .rodata. */ |
| Val_GNU_AVR_VTABLE_RAM = 0 + 1, |
| |
| // __flash: 16-bit flash in 0x0 -- 0xffff. |
| Val_GNU_AVR_VTABLE_FLASH = 1 + 1, |
| |
| // __flash1: 16-bit flash in 0x10000 -- 0x1ffff. |
| Val_GNU_AVR_VTABLE_FLASH1 = 2 + 1, |
| |
| // __flash2: 16-bit flash in 0x20000 -- 0x2ffff. |
| Val_GNU_AVR_VTABLE_FLASH2 = 3 + 1, |
| |
| // __flash3: 16-bit flash in 0x30000 -- 0x3ffff. |
| Val_GNU_AVR_VTABLE_FLASH3 = 4 + 1, |
| |
| // __flash4: 16-bit flash in 0x40000 -- 0x4ffff. |
| Val_GNU_AVR_VTABLE_FLASH4 = 5 + 1, |
| |
| // __flash5: 16-bit flash in 0x50000 -- 0x5ffff. |
| Val_GNU_AVR_VTABLE_FLASH5 = 6 + 1, |
| |
| // __flashx: 24-bit flash. |
| Val_GNU_AVR_VTABLE_FLASHX = 7 + 1, |
| |
| Val_GNU_AVR_VTABLE_Sentinel |
| }; |
| |
| |
| // Map Tag_GNU_AVR_VTABLE_AS to a static string for diagnostics. |
| |
| static inline const char * |
| avr_tag_vtable_as_name (int tag) |
| { |
| switch (tag) |
| { |
| default: |
| break; |
| case Val_GNU_AVR_VTABLE_NONE: return "no vtables"; |
| case Val_GNU_AVR_VTABLE_RAM: return "generic address space"; |
| case Val_GNU_AVR_VTABLE_FLASH: return "__flash"; |
| case Val_GNU_AVR_VTABLE_FLASH1: return "__flash1"; |
| case Val_GNU_AVR_VTABLE_FLASH2: return "__flash2"; |
| case Val_GNU_AVR_VTABLE_FLASH3: return "__flash3"; |
| case Val_GNU_AVR_VTABLE_FLASH4: return "__flash4"; |
| case Val_GNU_AVR_VTABLE_FLASH5: return "__flash5"; |
| case Val_GNU_AVR_VTABLE_FLASHX: return "__flashx"; |
| } |
| |
| return "<unknown>"; |
| } |
| |
| #endif /* _ELF_AVR_H */ |
