1 /* PPC64 specific symbolic name handling. 2 Copyright (C) 2004 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2004. 4 5 This program is Open Source software; you can redistribute it and/or 6 modify it under the terms of the Open Software License version 1.0 as 7 published by the Open Source Initiative. 8 9 You should have received a copy of the Open Software License along 10 with this program; if not, you may obtain a copy of the Open Software 11 License version 1.0 from http://www.opensource.org/licenses/osl.php or 12 by writing the Open Source Initiative c/o Lawrence Rosen, Esq., 13 3001 King Ranch Road, Ukiah, CA 95482. */ 14 15 #ifdef HAVE_CONFIG_H 16 # include <config.h> 17 #endif 18 19 #include <assert.h> 20 #include <elf.h> 21 #include <stddef.h> 22 23 #include <libebl_ppc64.h> 24 25 26 /* Return of the backend. */ 27 const char * 28 ppc64_backend_name (void) 29 { 30 return "ppc64"; 31 } 32 33 34 /* Relocation mapping table. */ 35 static struct 36 { 37 const char *name; 38 enum { both = 0, rel = 1, exec = 2 } appear; 39 } reloc_map_table[] = 40 { 41 // XXX Check all the appear values. 42 [R_PPC64_NONE] = { "R_PPC64_NONE", both }, 43 [R_PPC64_ADDR32] = { "R_PPC64_ADDR32", both }, 44 [R_PPC64_ADDR24] = { "R_PPC64_ADDR24", both }, 45 [R_PPC64_ADDR16] = { "R_PPC64_ADDR16", both }, 46 [R_PPC64_ADDR16_LO] = { "R_PPC64_ADDR16_LO", both }, 47 [R_PPC64_ADDR16_HI] = { "R_PPC64_ADDR16_HI", both }, 48 [R_PPC64_ADDR16_HA] = { "R_PPC64_ADDR16_HA", both }, 49 [R_PPC64_ADDR14] = { "R_PPC64_ADDR14", both }, 50 [R_PPC64_ADDR14_BRTAKEN] = { "R_PPC64_ADDR14_BRTAKEN", exec }, 51 [R_PPC64_ADDR14_BRNTAKEN] = { "R_PPC64_ADDR14_BRNTAKEN", exec }, 52 [R_PPC64_REL24] = { "R_PPC64_REL24", both }, 53 [R_PPC64_REL14] = { "R_PPC64_REL14", both }, 54 [R_PPC64_REL14_BRTAKEN] = { "R_PPC64_REL14_BRTAKEN", exec }, 55 [R_PPC64_REL14_BRNTAKEN] = { "R_PPC64_REL14_BRNTAKEN", exec }, 56 [R_PPC64_GOT16] = { "R_PPC64_GOT16", rel }, 57 [R_PPC64_GOT16_LO] = { "R_PPC64_GOT16_LO", rel }, 58 [R_PPC64_GOT16_HI] = { "R_PPC64_GOT16_HI", rel }, 59 [R_PPC64_GOT16_HA] = { "R_PPC64_GOT16_HA", rel }, 60 [R_PPC64_COPY] = { "R_PPC64_COPY", exec }, 61 [R_PPC64_GLOB_DAT] = { "R_PPC64_GLOB_DAT", exec }, 62 [R_PPC64_JMP_SLOT] = { "R_PPC64_JMP_SLOT", exec }, 63 [R_PPC64_RELATIVE] = { "R_PPC64_RELATIVE", exec }, 64 [R_PPC64_UADDR32] = { "R_PPC64_UADDR32", exec }, 65 [R_PPC64_UADDR16] = { "R_PPC64_UADDR16", exec }, 66 [R_PPC64_REL32] = { "R_PPC64_REL32", exec }, 67 [R_PPC64_PLT32] = { "R_PPC64_PLT32", exec }, 68 [R_PPC64_PLTREL32] = { "R_PPC64_PLTREL32", both }, 69 [R_PPC64_PLT16_LO] = { "R_PPC64_PLT16_LO", both }, 70 [R_PPC64_PLT16_HI] = { "R_PPC64_PLT16_HI", both }, 71 [R_PPC64_PLT16_HA] = { "R_PPC64_PLT16_HA", both }, 72 [R_PPC64_SECTOFF] = { "R_PPC64_SECTOFF", both }, 73 [R_PPC64_SECTOFF_LO] = { "R_PPC64_SECTOFF_LO", both }, 74 [R_PPC64_SECTOFF_HI] = { "R_PPC64_SECTOFF_HI", both }, 75 [R_PPC64_SECTOFF_HA] = { "R_PPC64_SECTOFF_HA", both }, 76 [R_PPC64_ADDR30] = { "R_PPC64_ADDR30", both }, 77 [R_PPC64_ADDR64] = { "R_PPC64_ADDR64", both }, 78 [R_PPC64_ADDR16_HIGHER] = { "R_PPC64_ADDR16_HIGHER", both }, 79 [R_PPC64_ADDR16_HIGHERA] = { "R_PPC64_ADDR16_HIGHERA", both }, 80 [R_PPC64_ADDR16_HIGHEST] = { "R_PPC64_ADDR16_HIGHEST", both }, 81 [R_PPC64_ADDR16_HIGHESTA] = { "R_PPC64_ADDR16_HIGHESTA", both }, 82 [R_PPC64_UADDR64] = { "R_PPC64_UADDR64", both }, 83 [R_PPC64_REL64] = { "R_PPC64_REL64", both }, 84 [R_PPC64_PLT64] = { "R_PPC64_PLT64", both }, 85 [R_PPC64_PLTREL64] = { "R_PPC64_PLTREL64", both }, 86 [R_PPC64_TOC16] = { "R_PPC64_TOC16", both }, 87 [R_PPC64_TOC16_LO] = { "R_PPC64_TOC16_LO", both }, 88 [R_PPC64_TOC16_HI] = { "R_PPC64_TOC16_HI", both }, 89 [R_PPC64_TOC16_HA] = { "R_PPC64_TOC16_HA", both }, 90 [R_PPC64_TOC] = { "R_PPC64_TOC", both }, 91 [R_PPC64_PLTGOT16] = { "R_PPC64_PLTGOT16", both }, 92 [R_PPC64_PLTGOT16_LO] = { "R_PPC64_PLTGOT16_LO", both }, 93 [R_PPC64_PLTGOT16_HI] = { "R_PPC64_PLTGOT16_HI", both }, 94 [R_PPC64_PLTGOT16_HA] = { "R_PPC64_PLTGOT16_HA", both }, 95 [R_PPC64_ADDR16_DS] = { "R_PPC64_ADDR16_DS", both }, 96 [R_PPC64_ADDR16_LO_DS] = { "R_PPC64_ADDR16_LO_DS", both }, 97 [R_PPC64_GOT16_DS] = { "R_PPC64_GOT16_DS", both }, 98 [R_PPC64_GOT16_LO_DS] = { "R_PPC64_GOT16_LO_DS", both }, 99 [R_PPC64_PLT16_LO_DS] = { "R_PPC64_PLT16_LO_DS", both }, 100 [R_PPC64_SECTOFF_DS] = { "R_PPC64_SECTOFF_DS", both }, 101 [R_PPC64_SECTOFF_LO_DS] = { "R_PPC64_SECTOFF_LO_DS", both }, 102 [R_PPC64_TOC16_DS] = { "R_PPC64_TOC16_DS", both }, 103 [R_PPC64_TOC16_LO_DS] = { "R_PPC64_TOC16_LO_DS", both }, 104 [R_PPC64_PLTGOT16_DS] = { "R_PPC64_PLTGOT16_DS", both }, 105 [R_PPC64_PLTGOT16_LO_DS] = { "R_PPC64_PLTGOT16_LO_DS", both }, 106 [R_PPC64_TLS] = { "R_PPC64_TLS", both }, 107 [R_PPC64_DTPMOD64] = { "R_PPC64_DTPMOD64", both }, 108 [R_PPC64_TPREL16] = { "R_PPC64_TPREL16", both }, 109 [R_PPC64_TPREL16_LO] = { "R_PPC64_TPREL16_LO", both }, 110 [R_PPC64_TPREL16_HI] = { "R_PPC64_TPREL16_HI", both }, 111 [R_PPC64_TPREL16_HA] = { "R_PPC64_TPREL16_HA", both }, 112 [R_PPC64_TPREL64] = { "R_PPC64_TPREL64", both }, 113 [R_PPC64_DTPREL16] = { "R_PPC64_DTPREL16", both }, 114 [R_PPC64_DTPREL16_LO] = { "R_PPC64_DTPREL16_LO", both }, 115 [R_PPC64_DTPREL16_HI] = { "R_PPC64_DTPREL16_HI", both }, 116 [R_PPC64_DTPREL16_HA] = { "R_PPC64_DTPREL16_HA", both }, 117 [R_PPC64_DTPREL64] = { "R_PPC64_DTPREL64", both }, 118 [R_PPC64_GOT_TLSGD16] = { "R_PPC64_GOT_TLSGD16", both }, 119 [R_PPC64_GOT_TLSGD16_LO] = { "R_PPC64_GOT_TLSGD16_LO", both }, 120 [R_PPC64_GOT_TLSGD16_HI] = { "R_PPC64_GOT_TLSGD16_HI", both }, 121 [R_PPC64_GOT_TLSGD16_HA] = { "R_PPC64_GOT_TLSGD16_HA", both }, 122 [R_PPC64_GOT_TLSLD16] = { "R_PPC64_GOT_TLSLD16", both }, 123 [R_PPC64_GOT_TLSLD16_LO] = { "R_PPC64_GOT_TLSLD16_LO", both }, 124 [R_PPC64_GOT_TLSLD16_HI] = { "R_PPC64_GOT_TLSLD16_HI", both }, 125 [R_PPC64_GOT_TLSLD16_HA] = { "R_PPC64_GOT_TLSLD16_HA", both }, 126 [R_PPC64_GOT_TPREL16_DS] = { "R_PPC64_GOT_TPREL16_DS", both }, 127 [R_PPC64_GOT_TPREL16_LO_DS] = { "R_PPC64_GOT_TPREL16_LO_DS", both }, 128 [R_PPC64_GOT_TPREL16_HI] = { "R_PPC64_GOT_TPREL16_HI", both }, 129 [R_PPC64_GOT_TPREL16_HA] = { "R_PPC64_GOT_TPREL16_HA", both }, 130 [R_PPC64_GOT_DTPREL16_DS] = { "R_PPC64_GOT_DTPREL16_DS", both }, 131 [R_PPC64_GOT_DTPREL16_LO_DS] = { "R_PPC64_GOT_DTPREL16_LO_DS", both }, 132 [R_PPC64_GOT_DTPREL16_HI] = { "R_PPC64_GOT_DTPREL16_HI", both }, 133 [R_PPC64_GOT_DTPREL16_HA] = { "R_PPC64_GOT_DTPREL16_HA", both }, 134 [R_PPC64_TPREL16_DS] = { "R_PPC64_TPREL16_DS", both }, 135 [R_PPC64_TPREL16_LO_DS] = { "R_PPC64_TPREL16_LO_DS", both }, 136 [R_PPC64_TPREL16_HIGHER] = { "R_PPC64_TPREL16_HIGHER", both }, 137 [R_PPC64_TPREL16_HIGHERA] = { "R_PPC64_TPREL16_HIGHERA", both }, 138 [R_PPC64_TPREL16_HIGHEST] = { "R_PPC64_TPREL16_HIGHEST", both }, 139 [R_PPC64_TPREL16_HIGHESTA] = { "R_PPC64_TPREL16_HIGHESTA", both }, 140 [R_PPC64_DTPREL16_DS] = { "R_PPC64_DTPREL16_DS", both }, 141 [R_PPC64_DTPREL16_LO_DS] = { "R_PPC64_DTPREL16_LO_DS", both }, 142 [R_PPC64_DTPREL16_HIGHER] = { "R_PPC64_DTPREL16_HIGHER", both }, 143 [R_PPC64_DTPREL16_HIGHERA] = { "R_PPC64_DTPREL16_HIGHERA", both }, 144 [R_PPC64_DTPREL16_HIGHEST] = { "R_PPC64_DTPREL16_HIGHEST", both }, 145 [R_PPC64_DTPREL16_HIGHESTA] = { "R_PPC64_DTPREL16_HIGHESTA", both } 146 }; 147 148 149 /* Determine relocation type string for PPC. */ 150 const char * 151 ppc64_reloc_type_name (int type, char *buf, size_t len) 152 { 153 if (type < R_PPC64_NONE || type >= R_PPC64_NUM) 154 return NULL; 155 156 return reloc_map_table[type].name; 157 } 158 159 160 /* Check for correct relocation type. */ 161 bool 162 ppc64_reloc_type_check (int type) 163 { 164 return (type >= R_PPC64_NONE && type < R_PPC64_NUM 165 && reloc_map_table[type].name != NULL) ? true : false; 166 } 167 168 169 /* Check for correct relocation type use. */ 170 bool 171 ppc64_reloc_valid_use (Elf *elf, int type) 172 { 173 if (type < R_PPC64_NONE || type >= R_PPC64_NUM 174 || reloc_map_table[type].name == NULL) 175 return false; 176 177 Elf64_Ehdr *ehdr = elf64_getehdr (elf); 178 assert (ehdr != NULL); 179 180 if (reloc_map_table[type].appear == rel) 181 return ehdr->e_type == ET_REL; 182 183 if (reloc_map_table[type].appear == exec) 184 return ehdr->e_type != ET_REL; 185 186 assert (reloc_map_table[type].appear == both); 187 return true; 188 } 189 190 191 const char * 192 ppc64_dynamic_tag_name (int64_t tag, char *buf, size_t len) 193 { 194 switch (tag) 195 { 196 case DT_PPC64_GLINK: 197 return "PPC64_GLINK"; 198 case DT_PPC64_OPD: 199 return "PPC64_OPD"; 200 case DT_PPC64_OPDSZ: 201 return "PPC64_OPDSZ"; 202 default: 203 break; 204 } 205 return NULL; 206 } 207
