Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/sparc64/sparc64/elf_machdep.c
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1 /*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * Copyright (c) 2000 Eduardo Horvath. 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * from: NetBSD: mdreloc.c,v 1.42 2008/04/28 20:23:04 martin Exp 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 #include <sys/param.h> 38 #include <sys/kernel.h> 39 #include <sys/systm.h> 40 #include <sys/exec.h> 41 #include <sys/imgact.h> 42 #include <sys/linker.h> 43 #include <sys/proc.h> 44 #include <sys/sysent.h> 45 #include <sys/imgact_elf.h> 46 #include <sys/syscall.h> 47 #include <sys/signalvar.h> 48 #include <sys/vnode.h> 49 50 #include <vm/vm.h> 51 #include <vm/vm_param.h> 52 53 #include <machine/elf.h> 54 55 #include "linker_if.h" 56 57 static struct sysentvec elf64_freebsd_sysvec = { 58 .sv_size = SYS_MAXSYSCALL, 59 .sv_table = sysent, 60 .sv_mask = 0, 61 .sv_sigsize = 0, 62 .sv_sigtbl = NULL, 63 .sv_errsize = 0, 64 .sv_errtbl = NULL, 65 .sv_transtrap = NULL, 66 .sv_fixup = __elfN(freebsd_fixup), 67 .sv_sendsig = sendsig, 68 .sv_sigcode = NULL, 69 .sv_szsigcode = NULL, 70 .sv_prepsyscall = NULL, 71 .sv_name = "FreeBSD ELF64", 72 .sv_coredump = __elfN(coredump), 73 .sv_imgact_try = NULL, 74 .sv_minsigstksz = MINSIGSTKSZ, 75 .sv_pagesize = PAGE_SIZE, 76 .sv_minuser = VM_MIN_ADDRESS, 77 .sv_maxuser = VM_MAXUSER_ADDRESS, 78 .sv_usrstack = USRSTACK, 79 .sv_psstrings = PS_STRINGS, 80 .sv_stackprot = VM_PROT_READ | VM_PROT_WRITE, 81 .sv_copyout_strings = exec_copyout_strings, 82 .sv_setregs = exec_setregs, 83 .sv_fixlimit = NULL, 84 .sv_maxssiz = NULL, 85 .sv_flags = SV_ABI_FREEBSD | SV_LP64, 86 .sv_set_syscall_retval = cpu_set_syscall_retval, 87 .sv_fetch_syscall_args = cpu_fetch_syscall_args, 88 .sv_syscallnames = syscallnames, 89 .sv_schedtail = NULL, 90 }; 91 92 static Elf64_Brandinfo freebsd_brand_info = { 93 .brand = ELFOSABI_FREEBSD, 94 .machine = EM_SPARCV9, 95 .compat_3_brand = "FreeBSD", 96 .emul_path = NULL, 97 .interp_path = "/libexec/ld-elf.so.1", 98 .sysvec = &elf64_freebsd_sysvec, 99 .interp_newpath = NULL, 100 .brand_note = &elf64_freebsd_brandnote, 101 .flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE 102 }; 103 104 SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_FIRST, 105 (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_info); 106 107 static Elf64_Brandinfo freebsd_brand_oinfo = { 108 .brand = ELFOSABI_FREEBSD, 109 .machine = EM_SPARCV9, 110 .compat_3_brand = "FreeBSD", 111 .emul_path = NULL, 112 .interp_path = "/usr/libexec/ld-elf.so.1", 113 .sysvec = &elf64_freebsd_sysvec, 114 .interp_newpath = NULL, 115 .brand_note = &elf64_freebsd_brandnote, 116 .flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE 117 }; 118 119 SYSINIT(oelf64, SI_SUB_EXEC, SI_ORDER_ANY, 120 (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_oinfo); 121 122 void 123 elf64_dump_thread(struct thread *td __unused, void *dst __unused, 124 size_t *off __unused) 125 { 126 127 } 128 129 /* 130 * The following table holds for each relocation type: 131 * - the width in bits of the memory location the relocation 132 * applies to (not currently used) 133 * - the number of bits the relocation value must be shifted to the 134 * right (i.e. discard least significant bits) to fit into 135 * the appropriate field in the instruction word. 136 * - flags indicating whether 137 * * the relocation involves a symbol 138 * * the relocation is relative to the current position 139 * * the relocation is for a GOT entry 140 * * the relocation is relative to the load address 141 * 142 */ 143 #define _RF_S 0x80000000 /* Resolve symbol */ 144 #define _RF_A 0x40000000 /* Use addend */ 145 #define _RF_P 0x20000000 /* Location relative */ 146 #define _RF_G 0x10000000 /* GOT offset */ 147 #define _RF_B 0x08000000 /* Load address relative */ 148 #define _RF_U 0x04000000 /* Unaligned */ 149 #define _RF_X 0x02000000 /* Bare symbols, needs proc */ 150 #define _RF_D 0x01000000 /* Use dynamic TLS offset */ 151 #define _RF_O 0x00800000 /* Use static TLS offset */ 152 #define _RF_I 0x00400000 /* Use TLS object ID */ 153 #define _RF_SZ(s) (((s) & 0xff) << 8) /* memory target size */ 154 #define _RF_RS(s) ( (s) & 0xff) /* right shift */ 155 static const int reloc_target_flags[] = { 156 0, /* NONE */ 157 _RF_S|_RF_A| _RF_SZ(8) | _RF_RS(0), /* 8 */ 158 _RF_S|_RF_A| _RF_SZ(16) | _RF_RS(0), /* 16 */ 159 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* 32 */ 160 _RF_S|_RF_A|_RF_P| _RF_SZ(8) | _RF_RS(0), /* DISP_8 */ 161 _RF_S|_RF_A|_RF_P| _RF_SZ(16) | _RF_RS(0), /* DISP_16 */ 162 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(0), /* DISP_32 */ 163 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WDISP_30 */ 164 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WDISP_22 */ 165 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(10), /* HI22 */ 166 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 22 */ 167 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 13 */ 168 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* LO10 */ 169 _RF_G| _RF_SZ(32) | _RF_RS(0), /* GOT10 */ 170 _RF_G| _RF_SZ(32) | _RF_RS(0), /* GOT13 */ 171 _RF_G| _RF_SZ(32) | _RF_RS(10), /* GOT22 */ 172 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(0), /* PC10 */ 173 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(10), /* PC22 */ 174 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WPLT30 */ 175 _RF_SZ(32) | _RF_RS(0), /* COPY */ 176 _RF_S|_RF_A| _RF_SZ(64) | _RF_RS(0), /* GLOB_DAT */ 177 _RF_SZ(32) | _RF_RS(0), /* JMP_SLOT */ 178 _RF_A| _RF_B| _RF_SZ(64) | _RF_RS(0), /* RELATIVE */ 179 _RF_S|_RF_A| _RF_U| _RF_SZ(32) | _RF_RS(0), /* UA_32 */ 180 181 _RF_A| _RF_SZ(32) | _RF_RS(0), /* PLT32 */ 182 _RF_A| _RF_SZ(32) | _RF_RS(10), /* HIPLT22 */ 183 _RF_A| _RF_SZ(32) | _RF_RS(0), /* LOPLT10 */ 184 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(0), /* PCPLT32 */ 185 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(10), /* PCPLT22 */ 186 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(0), /* PCPLT10 */ 187 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 10 */ 188 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 11 */ 189 _RF_S|_RF_A|_RF_X| _RF_SZ(64) | _RF_RS(0), /* 64 */ 190 _RF_S|_RF_A|/*extra*/ _RF_SZ(32) | _RF_RS(0), /* OLO10 */ 191 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(42), /* HH22 */ 192 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(32), /* HM10 */ 193 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(10), /* LM22 */ 194 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(42), /* PC_HH22 */ 195 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(32), /* PC_HM10 */ 196 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(10), /* PC_LM22 */ 197 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WDISP16 */ 198 _RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WDISP19 */ 199 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* GLOB_JMP */ 200 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 7 */ 201 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 5 */ 202 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* 6 */ 203 _RF_S|_RF_A|_RF_P| _RF_SZ(64) | _RF_RS(0), /* DISP64 */ 204 _RF_A| _RF_SZ(64) | _RF_RS(0), /* PLT64 */ 205 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(10), /* HIX22 */ 206 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* LOX10 */ 207 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(22), /* H44 */ 208 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(12), /* M44 */ 209 _RF_S|_RF_A|_RF_X| _RF_SZ(32) | _RF_RS(0), /* L44 */ 210 _RF_S|_RF_A| _RF_SZ(64) | _RF_RS(0), /* REGISTER */ 211 _RF_S|_RF_A| _RF_U| _RF_SZ(64) | _RF_RS(0), /* UA64 */ 212 _RF_S|_RF_A| _RF_U| _RF_SZ(16) | _RF_RS(0), /* UA16 */ 213 214 #if 0 215 /* TLS */ 216 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(10), /* GD_HI22 */ 217 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* GD_LO10 */ 218 0, /* GD_ADD */ 219 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* GD_CALL */ 220 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(10), /* LDM_HI22 */ 221 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* LDM_LO10 */ 222 0, /* LDM_ADD */ 223 _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* LDM_CALL */ 224 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(10), /* LDO_HIX22 */ 225 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* LDO_LOX10 */ 226 0, /* LDO_ADD */ 227 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(10), /* IE_HI22 */ 228 _RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* IE_LO10 */ 229 0, /* IE_LD */ 230 0, /* IE_LDX */ 231 0, /* IE_ADD */ 232 _RF_S|_RF_A| _RF_O| _RF_SZ(32) | _RF_RS(10), /* LE_HIX22 */ 233 _RF_S|_RF_A| _RF_O| _RF_SZ(32) | _RF_RS(0), /* LE_LOX10 */ 234 _RF_S| _RF_I| _RF_SZ(32) | _RF_RS(0), /* DTPMOD32 */ 235 _RF_S| _RF_I| _RF_SZ(64) | _RF_RS(0), /* DTPMOD64 */ 236 _RF_S|_RF_A| _RF_D| _RF_SZ(32) | _RF_RS(0), /* DTPOFF32 */ 237 _RF_S|_RF_A| _RF_D| _RF_SZ(64) | _RF_RS(0), /* DTPOFF64 */ 238 _RF_S|_RF_A| _RF_O| _RF_SZ(32) | _RF_RS(0), /* TPOFF32 */ 239 _RF_S|_RF_A| _RF_O| _RF_SZ(64) | _RF_RS(0) /* TPOFF64 */ 240 #endif 241 }; 242 243 #if 0 244 static const char *const reloc_names[] = { 245 "NONE", "8", "16", "32", "DISP_8", "DISP_16", "DISP_32", "WDISP_30", 246 "WDISP_22", "HI22", "22", "13", "LO10", "GOT10", "GOT13", "GOT22", 247 "PC10", "PC22", "WPLT30", "COPY", "GLOB_DAT", "JMP_SLOT", "RELATIVE", 248 "UA_32", "PLT32", "HIPLT22", "LOPLT10", "LOPLT10", "PCPLT22", 249 "PCPLT32", "10", "11", "64", "OLO10", "HH22", "HM10", "LM22", 250 "PC_HH22", "PC_HM10", "PC_LM22", "WDISP16", "WDISP19", "GLOB_JMP", 251 "7", "5", "6", "DISP64", "PLT64", "HIX22", "LOX10", "H44", "M44", 252 "L44", "REGISTER", "UA64", "UA16", "GD_HI22", "GD_LO10", "GD_ADD", 253 "GD_CALL", "LDM_HI22", "LDMO10", "LDM_ADD", "LDM_CALL", "LDO_HIX22", 254 "LDO_LOX10", "LDO_ADD", "IE_HI22", "IE_LO10", "IE_LD", "IE_LDX", 255 "IE_ADD", "LE_HIX22", "LE_LOX10", "DTPMOD32", "DTPMOD64", "DTPOFF32", 256 "DTPOFF64", "TPOFF32", "TPOFF64" 257 }; 258 #endif 259 260 #define RELOC_RESOLVE_SYMBOL(t) ((reloc_target_flags[t] & _RF_S) != 0) 261 #define RELOC_PC_RELATIVE(t) ((reloc_target_flags[t] & _RF_P) != 0) 262 #define RELOC_BASE_RELATIVE(t) ((reloc_target_flags[t] & _RF_B) != 0) 263 #define RELOC_UNALIGNED(t) ((reloc_target_flags[t] & _RF_U) != 0) 264 #define RELOC_USE_ADDEND(t) ((reloc_target_flags[t] & _RF_A) != 0) 265 #define RELOC_BARE_SYMBOL(t) ((reloc_target_flags[t] & _RF_X) != 0) 266 #define RELOC_USE_TLS_DOFF(t) ((reloc_target_flags[t] & _RF_D) != 0) 267 #define RELOC_USE_TLS_OFF(t) ((reloc_target_flags[t] & _RF_O) != 0) 268 #define RELOC_USE_TLS_ID(t) ((reloc_target_flags[t] & _RF_I) != 0) 269 #define RELOC_TARGET_SIZE(t) ((reloc_target_flags[t] >> 8) & 0xff) 270 #define RELOC_VALUE_RIGHTSHIFT(t) (reloc_target_flags[t] & 0xff) 271 272 static const long reloc_target_bitmask[] = { 273 #define _BM(x) (~(-(1ULL << (x)))) 274 0, /* NONE */ 275 _BM(8), _BM(16), _BM(32), /* 8, 16, 32 */ 276 _BM(8), _BM(16), _BM(32), /* DISP8, DISP16, DISP32 */ 277 _BM(30), _BM(22), /* WDISP30, WDISP22 */ 278 _BM(22), _BM(22), /* HI22, 22 */ 279 _BM(13), _BM(10), /* 13, LO10 */ 280 _BM(10), _BM(13), _BM(22), /* GOT10, GOT13, GOT22 */ 281 _BM(10), _BM(22), /* PC10, PC22 */ 282 _BM(30), 0, /* WPLT30, COPY */ 283 _BM(32), _BM(32), _BM(32), /* GLOB_DAT, JMP_SLOT, RELATIVE */ 284 _BM(32), _BM(32), /* UA32, PLT32 */ 285 _BM(22), _BM(10), /* HIPLT22, LOPLT10 */ 286 _BM(32), _BM(22), _BM(10), /* PCPLT32, PCPLT22, PCPLT10 */ 287 _BM(10), _BM(11), -1, /* 10, 11, 64 */ 288 _BM(13), _BM(22), /* OLO10, HH22 */ 289 _BM(10), _BM(22), /* HM10, LM22 */ 290 _BM(22), _BM(10), _BM(22), /* PC_HH22, PC_HM10, PC_LM22 */ 291 _BM(16), _BM(19), /* WDISP16, WDISP19 */ 292 -1, /* GLOB_JMP */ 293 _BM(7), _BM(5), _BM(6), /* 7, 5, 6 */ 294 -1, -1, /* DISP64, PLT64 */ 295 _BM(22), _BM(13), /* HIX22, LOX10 */ 296 _BM(22), _BM(10), _BM(13), /* H44, M44, L44 */ 297 -1, -1, _BM(16), /* REGISTER, UA64, UA16 */ 298 #if 0 299 _BM(22), _BM(10), 0, _BM(30), /* GD_HI22, GD_LO10, GD_ADD, GD_CALL */ 300 _BM(22), _BM(10), 0, /* LDM_HI22, LDMO10, LDM_ADD */ 301 _BM(30), /* LDM_CALL */ 302 _BM(22), _BM(10), 0, /* LDO_HIX22, LDO_LOX10, LDO_ADD */ 303 _BM(22), _BM(10), 0, 0, /* IE_HI22, IE_LO10, IE_LD, IE_LDX */ 304 0, /* IE_ADD */ 305 _BM(22), _BM(13), /* LE_HIX22, LE_LOX10 */ 306 _BM(32), -1, /* DTPMOD32, DTPMOD64 */ 307 _BM(32), -1, /* DTPOFF32, DTPOFF64 */ 308 _BM(32), -1 /* TPOFF32, TPOFF64 */ 309 #endif 310 #undef _BM 311 }; 312 #define RELOC_VALUE_BITMASK(t) (reloc_target_bitmask[t]) 313 314 int 315 elf_reloc_local(linker_file_t lf, Elf_Addr relocbase, const void *data, 316 int type, elf_lookup_fn lookup __unused) 317 { 318 const Elf_Rela *rela; 319 Elf_Addr *where; 320 321 if (type != ELF_RELOC_RELA) 322 return (-1); 323 324 rela = (const Elf_Rela *)data; 325 if (ELF64_R_TYPE_ID(rela->r_info) != R_SPARC_RELATIVE) 326 return (-1); 327 328 where = (Elf_Addr *)(relocbase + rela->r_offset); 329 *where = elf_relocaddr(lf, rela->r_addend + relocbase); 330 331 return (0); 332 } 333 334 /* Process one elf relocation with addend. */ 335 int 336 elf_reloc(linker_file_t lf, Elf_Addr relocbase, const void *data, int type, 337 elf_lookup_fn lookup) 338 { 339 const Elf_Rela *rela; 340 Elf_Word *where32; 341 Elf_Addr *where; 342 Elf_Size rtype, symidx; 343 Elf_Addr value; 344 Elf_Addr mask; 345 Elf_Addr addr; 346 347 if (type != ELF_RELOC_RELA) 348 return (-1); 349 350 rela = (const Elf_Rela *)data; 351 where = (Elf_Addr *)(relocbase + rela->r_offset); 352 where32 = (Elf_Word *)where; 353 rtype = ELF64_R_TYPE_ID(rela->r_info); 354 symidx = ELF_R_SYM(rela->r_info); 355 356 if (rtype == R_SPARC_NONE || rtype == R_SPARC_RELATIVE) 357 return (0); 358 359 if (rtype == R_SPARC_JMP_SLOT || rtype == R_SPARC_COPY || 360 rtype >= sizeof(reloc_target_bitmask) / 361 sizeof(*reloc_target_bitmask)) { 362 printf("kldload: unexpected relocation type %ld\n", rtype); 363 return (-1); 364 } 365 366 if (RELOC_UNALIGNED(rtype)) { 367 printf("kldload: unaligned relocation type %ld\n", rtype); 368 return (-1); 369 } 370 371 value = rela->r_addend; 372 373 if (RELOC_RESOLVE_SYMBOL(rtype)) { 374 addr = lookup(lf, symidx, 1); 375 if (addr == 0) 376 return (-1); 377 value += addr; 378 if (RELOC_BARE_SYMBOL(rtype)) 379 value = elf_relocaddr(lf, value); 380 } 381 382 if (rtype == R_SPARC_OLO10) 383 value = (value & 0x3ff) + ELF64_R_TYPE_DATA(rela->r_info); 384 385 if (rtype == R_SPARC_HIX22) 386 value ^= 0xffffffffffffffff; 387 388 if (RELOC_PC_RELATIVE(rtype)) 389 value -= (Elf_Addr)where; 390 391 if (RELOC_BASE_RELATIVE(rtype)) 392 value = elf_relocaddr(lf, value + relocbase); 393 394 mask = RELOC_VALUE_BITMASK(rtype); 395 value >>= RELOC_VALUE_RIGHTSHIFT(rtype); 396 value &= mask; 397 398 if (rtype == R_SPARC_LOX10) 399 value |= 0x1c00; 400 401 if (RELOC_TARGET_SIZE(rtype) > 32) { 402 *where &= ~mask; 403 *where |= value; 404 } else { 405 *where32 &= ~mask; 406 *where32 |= value; 407 } 408 409 return (0); 410 } 411 412 int 413 elf_cpu_load_file(linker_file_t lf __unused) 414 { 415 416 return (0); 417 } 418 419 int 420 elf_cpu_unload_file(linker_file_t lf __unused) 421 { 422 423 return (0); 424 }
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