1 /* ALPHA ELF support for BFD. 2 Copyright 1996, 1998, 2000, 2001, 2002 Free Software Foundation, Inc. 3 4 By Eric Youngdale, <eric@aib.com>. No processor supplement available 5 for this platform. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23 /* This file holds definitions specific to the ALPHA ELF ABI. Note 24 that most of this is not actually implemented by BFD. */ 25 26 #ifndef _ELF_ALPHA_H 27 #define _ELF_ALPHA_H 28 29 /* Processor specific flags for the ELF header e_flags field. */ 30 31 /* All addresses must be below 2GB. */ 32 #define EF_ALPHA_32BIT 0x00000001 33 34 /* All relocations needed for relaxation with code movement are present. */ 35 #define EF_ALPHA_CANRELAX 0x00000002 36 37 /* Processor specific section flags. */ 38 39 /* This section must be in the global data area. */ 40 #define SHF_ALPHA_GPREL 0x10000000 41 42 /* Section contains some sort of debugging information. The exact 43 format is unspecified. It's probably ECOFF symbols. */ 44 #define SHT_ALPHA_DEBUG 0x70000001 45 46 /* Section contains register usage information. */ 47 #define SHT_ALPHA_REGINFO 0x70000002 48 49 /* A section of type SHT_MIPS_REGINFO contains the following 50 structure. */ 51 typedef struct 52 { 53 /* Mask of general purpose registers used. */ 54 unsigned long ri_gprmask; 55 /* Mask of co-processor registers used. */ 56 unsigned long ri_cprmask[4]; 57 /* GP register value for this object file. */ 58 long ri_gp_value; 59 } Elf64_RegInfo; 60 61 /* Special values for the st_other field in the symbol table. */ 62 63 #define STO_ALPHA_NOPV 0x80 64 #define STO_ALPHA_STD_GPLOAD 0x88 65 66 /* Special values for Elf64_Dyn tag. */ 67 #define DT_ALPHA_PLTRO DT_LOPROC 68 69 #include "elf/reloc-macros.h" 70 71 /* Alpha relocs. */ 72 START_RELOC_NUMBERS (elf_alpha_reloc_type) 73 RELOC_NUMBER (R_ALPHA_NONE, 0) /* No reloc */ 74 RELOC_NUMBER (R_ALPHA_REFLONG, 1) /* Direct 32 bit */ 75 RELOC_NUMBER (R_ALPHA_REFQUAD, 2) /* Direct 64 bit */ 76 RELOC_NUMBER (R_ALPHA_GPREL32, 3) /* GP relative 32 bit */ 77 RELOC_NUMBER (R_ALPHA_LITERAL, 4) /* GP relative 16 bit w/optimization */ 78 RELOC_NUMBER (R_ALPHA_LITUSE, 5) /* Optimization hint for LITERAL */ 79 RELOC_NUMBER (R_ALPHA_GPDISP, 6) /* Add displacement to GP */ 80 RELOC_NUMBER (R_ALPHA_BRADDR, 7) /* PC+4 relative 23 bit shifted */ 81 RELOC_NUMBER (R_ALPHA_HINT, 8) /* PC+4 relative 16 bit shifted */ 82 RELOC_NUMBER (R_ALPHA_SREL16, 9) /* PC relative 16 bit */ 83 RELOC_NUMBER (R_ALPHA_SREL32, 10) /* PC relative 32 bit */ 84 RELOC_NUMBER (R_ALPHA_SREL64, 11) /* PC relative 64 bit */ 85 86 /* Skip 12 - 16; deprecated ECOFF relocs. */ 87 88 RELOC_NUMBER (R_ALPHA_GPRELHIGH, 17) /* GP relative 32 bit, high 16 bits */ 89 RELOC_NUMBER (R_ALPHA_GPRELLOW, 18) /* GP relative 32 bit, low 16 bits */ 90 RELOC_NUMBER (R_ALPHA_GPREL16, 19) /* GP relative 16 bit */ 91 92 /* Skip 20 - 23; deprecated ECOFF relocs. */ 93 94 /* These relocations are specific to shared libraries. */ 95 RELOC_NUMBER (R_ALPHA_COPY, 24) /* Copy symbol at runtime */ 96 RELOC_NUMBER (R_ALPHA_GLOB_DAT, 25) /* Create GOT entry */ 97 RELOC_NUMBER (R_ALPHA_JMP_SLOT, 26) /* Create PLT entry */ 98 RELOC_NUMBER (R_ALPHA_RELATIVE, 27) /* Adjust by program base */ 99 100 /* Like BRADDR, but assert that the source and target object file 101 share the same GP value, and adjust the target address for 102 STO_ALPHA_STD_GPLOAD. */ 103 RELOC_NUMBER (R_ALPHA_BRSGP, 28) 104 105 /* Thread-Local Storage. */ 106 RELOC_NUMBER (R_ALPHA_TLSGD, 29) 107 RELOC_NUMBER (R_ALPHA_TLSLDM, 30) 108 RELOC_NUMBER (R_ALPHA_DTPMOD64, 31) 109 RELOC_NUMBER (R_ALPHA_GOTDTPREL, 32) 110 RELOC_NUMBER (R_ALPHA_DTPREL64, 33) 111 RELOC_NUMBER (R_ALPHA_DTPRELHI, 34) 112 RELOC_NUMBER (R_ALPHA_DTPRELLO, 35) 113 RELOC_NUMBER (R_ALPHA_DTPREL16, 36) 114 RELOC_NUMBER (R_ALPHA_GOTTPREL, 37) 115 RELOC_NUMBER (R_ALPHA_TPREL64, 38) 116 RELOC_NUMBER (R_ALPHA_TPRELHI, 39) 117 RELOC_NUMBER (R_ALPHA_TPRELLO, 40) 118 RELOC_NUMBER (R_ALPHA_TPREL16, 41) 119 120 END_RELOC_NUMBERS (R_ALPHA_max) 121 122 #define LITUSE_ALPHA_ADDR 0 123 #define LITUSE_ALPHA_BASE 1 124 #define LITUSE_ALPHA_BYTOFF 2 125 #define LITUSE_ALPHA_JSR 3 126 #define LITUSE_ALPHA_TLSGD 4 127 #define LITUSE_ALPHA_TLSLDM 5 128 #define LITUSE_ALPHA_JSRDIRECT 6 129 130 #endif /* _ELF_ALPHA_H */ 131