1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * Bootstrap the linker/loader. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <sys/types.h> 34*0Sstevel@tonic-gate #include <sys/bootconf.h> 35*0Sstevel@tonic-gate #include <sys/link.h> 36*0Sstevel@tonic-gate #include <sys/auxv.h> 37*0Sstevel@tonic-gate #include <sys/kobj.h> 38*0Sstevel@tonic-gate #include <sys/elf.h> 39*0Sstevel@tonic-gate #include <sys/bootsvcs.h> 40*0Sstevel@tonic-gate #include <sys/kobj_impl.h> 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #if !defined(__GNUC__) 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate /* 45*0Sstevel@tonic-gate * We don't use the global offset table, but 46*0Sstevel@tonic-gate * ld may throw in an UNDEFINED reference in 47*0Sstevel@tonic-gate * our symbol table. 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate #if !defined(_KERNEL) 50*0Sstevel@tonic-gate #pragma weak _GLOBAL_OFFSET_TABLE_ 51*0Sstevel@tonic-gate #endif 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate #else 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate /* 56*0Sstevel@tonic-gate * We -do- use the global offset table, but only by 57*0Sstevel@tonic-gate * accident -- when you tell gcc to emit PIC code, 58*0Sstevel@tonic-gate * it -always- generates a reference to the GOT in 59*0Sstevel@tonic-gate * a register, even if the compilation unit never 60*0Sstevel@tonic-gate * uses it. 61*0Sstevel@tonic-gate * 62*0Sstevel@tonic-gate * Rumoured to be fixed in a later version of gcc.. 63*0Sstevel@tonic-gate */ 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate long _GLOBAL_OFFSET_TABLE_[1]; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate #endif 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate #define roundup ALIGN 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate #define MAXSECT 64 /* max # of sects. */ 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #define HIBITS 0xffffffff80000000 /* upper 32 bits */ 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * Boot transfers control here. At this point, 77*0Sstevel@tonic-gate * we haven't relocated our own symbols, so the 78*0Sstevel@tonic-gate * world (as we know it) is pretty small right now. 79*0Sstevel@tonic-gate */ 80*0Sstevel@tonic-gate void 81*0Sstevel@tonic-gate _kobj_boot( 82*0Sstevel@tonic-gate struct boot_syscalls *syscallp, 83*0Sstevel@tonic-gate void *dvec, 84*0Sstevel@tonic-gate struct bootops *bootops, 85*0Sstevel@tonic-gate Boot *ebp) 86*0Sstevel@tonic-gate { 87*0Sstevel@tonic-gate Shdr *section[MAXSECT]; /* cache */ 88*0Sstevel@tonic-gate val_t bootaux[BA_NUM]; 89*0Sstevel@tonic-gate struct bootops *bop; 90*0Sstevel@tonic-gate Phdr *phdr; 91*0Sstevel@tonic-gate auxv_t *auxv = NULL; 92*0Sstevel@tonic-gate Shdr *sh; 93*0Sstevel@tonic-gate Half sh_num; 94*0Sstevel@tonic-gate ulong_t end, edata = 0; 95*0Sstevel@tonic-gate int i; 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate bop = (dvec) ? *(struct bootops **)bootops : bootops; 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate for (i = 0; i < BA_NUM; i++) 100*0Sstevel@tonic-gate bootaux[i].ba_val = NULL; 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate /* 103*0Sstevel@tonic-gate * Check the bootstrap vector. 104*0Sstevel@tonic-gate */ 105*0Sstevel@tonic-gate for (; ebp->eb_tag != EB_NULL; ebp++) { 106*0Sstevel@tonic-gate switch (ebp->eb_tag) { 107*0Sstevel@tonic-gate #if defined(__GNUC__) 108*0Sstevel@tonic-gate /* 109*0Sstevel@tonic-gate * gcc 2.95, 3.1 cannot be told to not generate GOT references, 110*0Sstevel@tonic-gate * which krtld cannot handle. yet switch statements which 111*0Sstevel@tonic-gate * can be mapped to jump tables are a frequent generator 112*0Sstevel@tonic-gate * of such references. 113*0Sstevel@tonic-gate */ 114*0Sstevel@tonic-gate case 0x12345678: 115*0Sstevel@tonic-gate /* 116*0Sstevel@tonic-gate * deliberately mess up the compilers 117*0Sstevel@tonic-gate * temptation to create a jump table 118*0Sstevel@tonic-gate */ 119*0Sstevel@tonic-gate break; 120*0Sstevel@tonic-gate #endif 121*0Sstevel@tonic-gate case EB_AUXV: 122*0Sstevel@tonic-gate auxv = (auxv_t *)ebp->eb_un.eb_ptr; 123*0Sstevel@tonic-gate break; 124*0Sstevel@tonic-gate case EB_DYNAMIC: 125*0Sstevel@tonic-gate bootaux[BA_DYNAMIC].ba_ptr = (void *)ebp->eb_un.eb_ptr; 126*0Sstevel@tonic-gate break; 127*0Sstevel@tonic-gate default: 128*0Sstevel@tonic-gate break; 129*0Sstevel@tonic-gate } 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (auxv == NULL) 133*0Sstevel@tonic-gate return; 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate /* 136*0Sstevel@tonic-gate * Now the aux vector. 137*0Sstevel@tonic-gate */ 138*0Sstevel@tonic-gate for (; auxv->a_type != AT_NULL; auxv++) { 139*0Sstevel@tonic-gate switch (auxv->a_type) { 140*0Sstevel@tonic-gate #if defined(__GNUC__) 141*0Sstevel@tonic-gate case 0x12345678: 142*0Sstevel@tonic-gate /* 143*0Sstevel@tonic-gate * deliberately mess up the compilers 144*0Sstevel@tonic-gate * temptation to create a jump table 145*0Sstevel@tonic-gate */ 146*0Sstevel@tonic-gate break; 147*0Sstevel@tonic-gate #endif 148*0Sstevel@tonic-gate case AT_PHDR: 149*0Sstevel@tonic-gate bootaux[BA_PHDR].ba_ptr = auxv->a_un.a_ptr; 150*0Sstevel@tonic-gate break; 151*0Sstevel@tonic-gate case AT_PHENT: 152*0Sstevel@tonic-gate bootaux[BA_PHENT].ba_val = auxv->a_un.a_val; 153*0Sstevel@tonic-gate break; 154*0Sstevel@tonic-gate case AT_PHNUM: 155*0Sstevel@tonic-gate bootaux[BA_PHNUM].ba_val = auxv->a_un.a_val; 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate case AT_PAGESZ: 158*0Sstevel@tonic-gate bootaux[BA_PAGESZ].ba_val = auxv->a_un.a_val; 159*0Sstevel@tonic-gate break; 160*0Sstevel@tonic-gate case AT_SUN_LDELF: 161*0Sstevel@tonic-gate bootaux[BA_LDELF].ba_ptr = auxv->a_un.a_ptr; 162*0Sstevel@tonic-gate break; 163*0Sstevel@tonic-gate case AT_SUN_LDSHDR: 164*0Sstevel@tonic-gate bootaux[BA_LDSHDR].ba_ptr = auxv->a_un.a_ptr; 165*0Sstevel@tonic-gate break; 166*0Sstevel@tonic-gate case AT_SUN_LDNAME: 167*0Sstevel@tonic-gate bootaux[BA_LDNAME].ba_ptr = auxv->a_un.a_ptr; 168*0Sstevel@tonic-gate break; 169*0Sstevel@tonic-gate case AT_SUN_LPAGESZ: 170*0Sstevel@tonic-gate bootaux[BA_LPAGESZ].ba_val = auxv->a_un.a_val; 171*0Sstevel@tonic-gate break; 172*0Sstevel@tonic-gate case AT_SUN_CPU: 173*0Sstevel@tonic-gate bootaux[BA_CPU].ba_ptr = auxv->a_un.a_ptr; 174*0Sstevel@tonic-gate break; 175*0Sstevel@tonic-gate case AT_SUN_MMU: 176*0Sstevel@tonic-gate bootaux[BA_MMU].ba_ptr = auxv->a_un.a_ptr; 177*0Sstevel@tonic-gate break; 178*0Sstevel@tonic-gate case AT_ENTRY: 179*0Sstevel@tonic-gate bootaux[BA_ENTRY].ba_ptr = auxv->a_un.a_ptr; 180*0Sstevel@tonic-gate break; 181*0Sstevel@tonic-gate default: 182*0Sstevel@tonic-gate break; 183*0Sstevel@tonic-gate } 184*0Sstevel@tonic-gate } 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate sh = (Shdr *)bootaux[BA_LDSHDR].ba_ptr; 188*0Sstevel@tonic-gate sh_num = ((Ehdr *)bootaux[BA_LDELF].ba_ptr)->e_shnum; 189*0Sstevel@tonic-gate /* 190*0Sstevel@tonic-gate * Make sure we won't overflow stack allocated cache 191*0Sstevel@tonic-gate */ 192*0Sstevel@tonic-gate if (sh_num >= MAXSECT) 193*0Sstevel@tonic-gate return; 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate /* 196*0Sstevel@tonic-gate * Build cache table for section addresses. 197*0Sstevel@tonic-gate */ 198*0Sstevel@tonic-gate for (i = 0; i < sh_num; i++) { 199*0Sstevel@tonic-gate section[i] = sh++; 200*0Sstevel@tonic-gate } 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate /* 203*0Sstevel@tonic-gate * Find the end of data 204*0Sstevel@tonic-gate * (to allocate bss) 205*0Sstevel@tonic-gate */ 206*0Sstevel@tonic-gate phdr = (Phdr *)bootaux[BA_PHDR].ba_ptr; 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate for (i = 0; i < bootaux[BA_PHNUM].ba_val; i++) { 209*0Sstevel@tonic-gate if (phdr->p_type == PT_LOAD && 210*0Sstevel@tonic-gate (phdr->p_flags & PF_W) && (phdr->p_flags & PF_X)) { 211*0Sstevel@tonic-gate edata = end = phdr->p_vaddr + phdr->p_memsz; 212*0Sstevel@tonic-gate break; 213*0Sstevel@tonic-gate } 214*0Sstevel@tonic-gate phdr = (Phdr *)((ulong_t)phdr + bootaux[BA_PHENT].ba_val); 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate if (edata == NULL) 217*0Sstevel@tonic-gate return; 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate /* 220*0Sstevel@tonic-gate * Find the symbol table, and then loop 221*0Sstevel@tonic-gate * through the symbols adjusting their 222*0Sstevel@tonic-gate * values to reflect where the sections 223*0Sstevel@tonic-gate * were loaded. 224*0Sstevel@tonic-gate */ 225*0Sstevel@tonic-gate for (i = 1; i < sh_num; i++) { 226*0Sstevel@tonic-gate Shdr *shp; 227*0Sstevel@tonic-gate Sym *sp; 228*0Sstevel@tonic-gate ulong_t off; 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate shp = section[i]; 231*0Sstevel@tonic-gate if (shp->sh_type != SHT_SYMTAB) 232*0Sstevel@tonic-gate continue; 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate for (off = 0; off < shp->sh_size; off += shp->sh_entsize) { 235*0Sstevel@tonic-gate sp = (Sym *)(shp->sh_addr + off); 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate if (sp->st_shndx == SHN_ABS || 238*0Sstevel@tonic-gate sp->st_shndx == SHN_UNDEF) 239*0Sstevel@tonic-gate continue; 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate /* 242*0Sstevel@tonic-gate * Assign the addresses for COMMON 243*0Sstevel@tonic-gate * symbols even though we haven't 244*0Sstevel@tonic-gate * actually allocated bss yet. 245*0Sstevel@tonic-gate */ 246*0Sstevel@tonic-gate if (sp->st_shndx == SHN_COMMON) { 247*0Sstevel@tonic-gate end = ALIGN(end, sp->st_value); 248*0Sstevel@tonic-gate sp->st_value = end; 249*0Sstevel@tonic-gate /* 250*0Sstevel@tonic-gate * Squirrel it away for later. 251*0Sstevel@tonic-gate */ 252*0Sstevel@tonic-gate if (bootaux[BA_BSS].ba_val == 0) 253*0Sstevel@tonic-gate bootaux[BA_BSS].ba_val = end; 254*0Sstevel@tonic-gate end += sp->st_size; 255*0Sstevel@tonic-gate continue; 256*0Sstevel@tonic-gate } else if (sp->st_shndx > (Half)sh_num) { 257*0Sstevel@tonic-gate BSVC_PUTCHAR(syscallp, '>'); 258*0Sstevel@tonic-gate return; 259*0Sstevel@tonic-gate } 260*0Sstevel@tonic-gate 261*0Sstevel@tonic-gate /* 262*0Sstevel@tonic-gate * Symbol's new address. 263*0Sstevel@tonic-gate */ 264*0Sstevel@tonic-gate sp->st_value += section[sp->st_shndx]->sh_addr; 265*0Sstevel@tonic-gate } 266*0Sstevel@tonic-gate } 267*0Sstevel@tonic-gate 268*0Sstevel@tonic-gate /* 269*0Sstevel@tonic-gate * Allocate bss for COMMON, if any. 270*0Sstevel@tonic-gate */ 271*0Sstevel@tonic-gate if (end > edata) { 272*0Sstevel@tonic-gate unsigned long va, bva; 273*0Sstevel@tonic-gate unsigned long asize; 274*0Sstevel@tonic-gate unsigned long align; 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate if (bootaux[BA_LPAGESZ].ba_val) { 277*0Sstevel@tonic-gate asize = bootaux[BA_LPAGESZ].ba_val; 278*0Sstevel@tonic-gate align = bootaux[BA_LPAGESZ].ba_val; 279*0Sstevel@tonic-gate } else { 280*0Sstevel@tonic-gate asize = bootaux[BA_PAGESZ].ba_val; 281*0Sstevel@tonic-gate align = BO_NO_ALIGN; 282*0Sstevel@tonic-gate } 283*0Sstevel@tonic-gate va = roundup(edata, asize); 284*0Sstevel@tonic-gate bva = roundup(end, asize); 285*0Sstevel@tonic-gate 286*0Sstevel@tonic-gate if (bva > va) { 287*0Sstevel@tonic-gate bva = (unsigned long)BOP_ALLOC(bop, (caddr_t)va, 288*0Sstevel@tonic-gate bva - va, align); 289*0Sstevel@tonic-gate if (bva == NULL) 290*0Sstevel@tonic-gate return; 291*0Sstevel@tonic-gate } 292*0Sstevel@tonic-gate /* 293*0Sstevel@tonic-gate * Zero it. 294*0Sstevel@tonic-gate */ 295*0Sstevel@tonic-gate for (va = edata; va < end; va++) 296*0Sstevel@tonic-gate *(char *)va = 0; 297*0Sstevel@tonic-gate /* 298*0Sstevel@tonic-gate * Update the size of data. 299*0Sstevel@tonic-gate */ 300*0Sstevel@tonic-gate phdr->p_memsz += (end - edata); 301*0Sstevel@tonic-gate } 302*0Sstevel@tonic-gate 303*0Sstevel@tonic-gate /* 304*0Sstevel@tonic-gate * Relocate our own symbols. We'll handle the 305*0Sstevel@tonic-gate * undefined symbols later. 306*0Sstevel@tonic-gate */ 307*0Sstevel@tonic-gate for (i = 1; i < sh_num; i++) { 308*0Sstevel@tonic-gate Shdr *rshp, *shp, *ssp; 309*0Sstevel@tonic-gate unsigned long baseaddr, reladdr, rend; 310*0Sstevel@tonic-gate long relocsize; 311*0Sstevel@tonic-gate 312*0Sstevel@tonic-gate rshp = section[i]; 313*0Sstevel@tonic-gate 314*0Sstevel@tonic-gate if (rshp->sh_type != SHT_RELA) 315*0Sstevel@tonic-gate continue; 316*0Sstevel@tonic-gate /* 317*0Sstevel@tonic-gate * Get the section being relocated 318*0Sstevel@tonic-gate * and the symbol table. 319*0Sstevel@tonic-gate */ 320*0Sstevel@tonic-gate shp = section[rshp->sh_info]; 321*0Sstevel@tonic-gate ssp = section[rshp->sh_link]; 322*0Sstevel@tonic-gate 323*0Sstevel@tonic-gate /* 324*0Sstevel@tonic-gate * Only perform relocations against allocatable 325*0Sstevel@tonic-gate * sections. 326*0Sstevel@tonic-gate */ 327*0Sstevel@tonic-gate if ((shp->sh_flags & SHF_ALLOC) == 0) 328*0Sstevel@tonic-gate continue; 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate reladdr = rshp->sh_addr; 331*0Sstevel@tonic-gate baseaddr = shp->sh_addr; 332*0Sstevel@tonic-gate rend = reladdr + rshp->sh_size; 333*0Sstevel@tonic-gate relocsize = rshp->sh_entsize; 334*0Sstevel@tonic-gate /* 335*0Sstevel@tonic-gate * Loop through relocations. 336*0Sstevel@tonic-gate */ 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate while (reladdr < rend) { 339*0Sstevel@tonic-gate Sym *symref; 340*0Sstevel@tonic-gate Rela *reloc; 341*0Sstevel@tonic-gate unsigned long stndx; 342*0Sstevel@tonic-gate unsigned long off, *offptr; 343*0Sstevel@tonic-gate long addend, value; 344*0Sstevel@tonic-gate unsigned long symoff, symsize; 345*0Sstevel@tonic-gate int rtype; 346*0Sstevel@tonic-gate 347*0Sstevel@tonic-gate reloc = (Rela *)reladdr; 348*0Sstevel@tonic-gate off = reloc->r_offset; 349*0Sstevel@tonic-gate addend = (long)reloc->r_addend; 350*0Sstevel@tonic-gate rtype = ELF_R_TYPE(reloc->r_info); 351*0Sstevel@tonic-gate stndx = ELF_R_SYM(reloc->r_info); 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate reladdr += relocsize; 354*0Sstevel@tonic-gate 355*0Sstevel@tonic-gate if (rtype == R_AMD64_NONE) 356*0Sstevel@tonic-gate continue; 357*0Sstevel@tonic-gate 358*0Sstevel@tonic-gate off += baseaddr; 359*0Sstevel@tonic-gate 360*0Sstevel@tonic-gate symsize = ssp->sh_entsize; 361*0Sstevel@tonic-gate symoff = stndx * symsize; 362*0Sstevel@tonic-gate 363*0Sstevel@tonic-gate /* 364*0Sstevel@tonic-gate * Check for bad symbol index. 365*0Sstevel@tonic-gate */ 366*0Sstevel@tonic-gate if (symoff > ssp->sh_size) 367*0Sstevel@tonic-gate return; 368*0Sstevel@tonic-gate 369*0Sstevel@tonic-gate symref = (Sym *)(ssp->sh_addr + symoff); 370*0Sstevel@tonic-gate 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate /* 373*0Sstevel@tonic-gate * Just bind our own symbols at this point. 374*0Sstevel@tonic-gate */ 375*0Sstevel@tonic-gate if (symref->st_shndx == SHN_UNDEF) 376*0Sstevel@tonic-gate continue; 377*0Sstevel@tonic-gate 378*0Sstevel@tonic-gate value = symref->st_value; 379*0Sstevel@tonic-gate 380*0Sstevel@tonic-gate if ((rtype == R_AMD64_PC32) || 381*0Sstevel@tonic-gate (rtype == R_AMD64_PLT32)) 382*0Sstevel@tonic-gate /* 383*0Sstevel@tonic-gate * If PC-relative, subtract ref addr. 384*0Sstevel@tonic-gate */ 385*0Sstevel@tonic-gate value -= off; 386*0Sstevel@tonic-gate else if (rtype == R_AMD64_32) { 387*0Sstevel@tonic-gate /* 388*0Sstevel@tonic-gate * It's illegal to have any HIBITS 389*0Sstevel@tonic-gate * set for R_AMD64_32 reloc. 390*0Sstevel@tonic-gate */ 391*0Sstevel@tonic-gate if (value & HIBITS) { 392*0Sstevel@tonic-gate BSVC_PUTCHAR(syscallp, 'h'); 393*0Sstevel@tonic-gate return; 394*0Sstevel@tonic-gate } 395*0Sstevel@tonic-gate } else if (rtype == R_AMD64_32S) { 396*0Sstevel@tonic-gate /* 397*0Sstevel@tonic-gate * All HIBITS for R_AMD64_32S 398*0Sstevel@tonic-gate * *must* be set. 399*0Sstevel@tonic-gate */ 400*0Sstevel@tonic-gate if ((value & HIBITS) != HIBITS) { 401*0Sstevel@tonic-gate BSVC_PUTCHAR(syscallp, 'H'); 402*0Sstevel@tonic-gate return; 403*0Sstevel@tonic-gate } 404*0Sstevel@tonic-gate } 405*0Sstevel@tonic-gate 406*0Sstevel@tonic-gate offptr = (unsigned long *)off; 407*0Sstevel@tonic-gate /* 408*0Sstevel@tonic-gate * insert value calculated at reference point 409*0Sstevel@tonic-gate * 2 cases - normal byte order aligned, normal byte 410*0Sstevel@tonic-gate * order unaligned. 411*0Sstevel@tonic-gate */ 412*0Sstevel@tonic-gate switch (rtype) { 413*0Sstevel@tonic-gate #if defined(__GNUC__) 414*0Sstevel@tonic-gate case 0x12345678: 415*0Sstevel@tonic-gate /* 416*0Sstevel@tonic-gate * deliberately mess up the compilers 417*0Sstevel@tonic-gate * temptation to create a jump table 418*0Sstevel@tonic-gate */ 419*0Sstevel@tonic-gate break; 420*0Sstevel@tonic-gate #endif 421*0Sstevel@tonic-gate case R_AMD64_64: 422*0Sstevel@tonic-gate *(unsigned long *)offptr = value + addend; 423*0Sstevel@tonic-gate break; 424*0Sstevel@tonic-gate case R_AMD64_PC32: 425*0Sstevel@tonic-gate case R_AMD64_32S: 426*0Sstevel@tonic-gate case R_AMD64_PLT32: 427*0Sstevel@tonic-gate *(uint_t *)offptr = (uint_t)(value + addend); 428*0Sstevel@tonic-gate break; 429*0Sstevel@tonic-gate case R_AMD64_GOT32: 430*0Sstevel@tonic-gate BSVC_PUTCHAR(syscallp, 'G'); 431*0Sstevel@tonic-gate return; 432*0Sstevel@tonic-gate case R_AMD64_32: 433*0Sstevel@tonic-gate return; 434*0Sstevel@tonic-gate default: 435*0Sstevel@tonic-gate BSVC_PUTCHAR(syscallp, 'R'); 436*0Sstevel@tonic-gate return; 437*0Sstevel@tonic-gate } 438*0Sstevel@tonic-gate /* 439*0Sstevel@tonic-gate * We only need to do it once. 440*0Sstevel@tonic-gate */ 441*0Sstevel@tonic-gate reloc->r_info = ELF_R_INFO(stndx, R_AMD64_NONE); 442*0Sstevel@tonic-gate } /* while */ 443*0Sstevel@tonic-gate } 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate /* 446*0Sstevel@tonic-gate * Done relocating all of our *defined* 447*0Sstevel@tonic-gate * symbols, so we hand off. 448*0Sstevel@tonic-gate */ 449*0Sstevel@tonic-gate kobj_init(syscallp, dvec, bootops, bootaux); 450*0Sstevel@tonic-gate } 451