17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 55aefb655Srie * Common Development and Distribution License (the "License"). 65aefb655Srie * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21141040e8Srie 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. 247c478bd9Sstevel@tonic-gate * Copyright (c) 1988 AT&T 257c478bd9Sstevel@tonic-gate * All Rights Reserved 267c478bd9Sstevel@tonic-gate * 27bf994817SAli Bahrami * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. 287c478bd9Sstevel@tonic-gate */ 297c478bd9Sstevel@tonic-gate 30ba2be530Sab /* Get the x86 version of the relocation engine */ 31ba2be530Sab #define DO_RELOC_LIBLD_X86 32ba2be530Sab 337c478bd9Sstevel@tonic-gate #include <string.h> 347c478bd9Sstevel@tonic-gate #include <stdio.h> 357c478bd9Sstevel@tonic-gate #include <sys/elf_386.h> 365aefb655Srie #include <debug.h> 375aefb655Srie #include <reloc.h> 38ba2be530Sab #include <i386/machdep_x86.h> 397c478bd9Sstevel@tonic-gate #include "msg.h" 407c478bd9Sstevel@tonic-gate #include "_libld.h" 417c478bd9Sstevel@tonic-gate 4257ef7aa9SRod Evans /* 4357ef7aa9SRod Evans * Search the GOT index list for a GOT entry with a matching reference. 4457ef7aa9SRod Evans */ 4557ef7aa9SRod Evans /* ARGSUSED3 */ 4657ef7aa9SRod Evans static Gotndx * 4757ef7aa9SRod Evans ld_find_got_ndx(Alist *alp, Gotref gref, Ofl_desc *ofl, Rel_desc *rdesc) 4857ef7aa9SRod Evans { 4957ef7aa9SRod Evans Aliste idx; 5057ef7aa9SRod Evans Gotndx *gnp; 5157ef7aa9SRod Evans 5257ef7aa9SRod Evans if ((gref == GOT_REF_TLSLD) && ofl->ofl_tlsldgotndx) 5357ef7aa9SRod Evans return (ofl->ofl_tlsldgotndx); 5457ef7aa9SRod Evans 5557ef7aa9SRod Evans for (ALIST_TRAVERSE(alp, idx, gnp)) { 5657ef7aa9SRod Evans if (gnp->gn_gotref == gref) 5757ef7aa9SRod Evans return (gnp); 5857ef7aa9SRod Evans } 5957ef7aa9SRod Evans return (NULL); 6057ef7aa9SRod Evans } 6157ef7aa9SRod Evans 6257ef7aa9SRod Evans static Xword 6357ef7aa9SRod Evans ld_calc_got_offset(Rel_desc *rdesc, Ofl_desc *ofl) 6457ef7aa9SRod Evans { 6557ef7aa9SRod Evans Os_desc *osp = ofl->ofl_osgot; 6657ef7aa9SRod Evans Sym_desc *sdp = rdesc->rel_sym; 6757ef7aa9SRod Evans Xword gotndx; 6857ef7aa9SRod Evans Gotref gref; 6957ef7aa9SRod Evans Gotndx *gnp; 7057ef7aa9SRod Evans 7157ef7aa9SRod Evans if (rdesc->rel_flags & FLG_REL_DTLS) 7257ef7aa9SRod Evans gref = GOT_REF_TLSGD; 7357ef7aa9SRod Evans else if (rdesc->rel_flags & FLG_REL_MTLS) 7457ef7aa9SRod Evans gref = GOT_REF_TLSLD; 7557ef7aa9SRod Evans else if (rdesc->rel_flags & FLG_REL_STLS) 7657ef7aa9SRod Evans gref = GOT_REF_TLSIE; 7757ef7aa9SRod Evans else 7857ef7aa9SRod Evans gref = GOT_REF_GENERIC; 79ba2be530Sab 8057ef7aa9SRod Evans gnp = ld_find_got_ndx(sdp->sd_GOTndxs, gref, ofl, NULL); 8157ef7aa9SRod Evans assert(gnp); 8257ef7aa9SRod Evans 8357ef7aa9SRod Evans gotndx = (Xword)gnp->gn_gotndx; 8457ef7aa9SRod Evans 8557ef7aa9SRod Evans if ((rdesc->rel_flags & FLG_REL_DTLS) && 8657ef7aa9SRod Evans (rdesc->rel_rtype == R_386_TLS_DTPOFF32)) 8757ef7aa9SRod Evans gotndx++; 8857ef7aa9SRod Evans 8957ef7aa9SRod Evans return ((Xword)(osp->os_shdr->sh_addr + (gotndx * M_GOT_ENTSIZE))); 9057ef7aa9SRod Evans } 91ba2be530Sab 92ba2be530Sab static Word 93bf994817SAli Bahrami ld_init_rel(Rel_desc *reld, Word *typedata, void *reloc) 947c478bd9Sstevel@tonic-gate { 9557ef7aa9SRod Evans Rel *rel = (Rel *)reloc; 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate /* LINTED */ 98ba2be530Sab reld->rel_rtype = (Word)ELF_R_TYPE(rel->r_info, M_MACH); 997c478bd9Sstevel@tonic-gate reld->rel_roffset = rel->r_offset; 1007c478bd9Sstevel@tonic-gate reld->rel_raddend = 0; 101bf994817SAli Bahrami *typedata = 0; 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate return ((Word)ELF_R_SYM(rel->r_info)); 1047c478bd9Sstevel@tonic-gate } 1057c478bd9Sstevel@tonic-gate 106ba2be530Sab static void 1075aefb655Srie ld_mach_eflags(Ehdr *ehdr, Ofl_desc *ofl) 1087c478bd9Sstevel@tonic-gate { 1095aefb655Srie ofl->ofl_dehdr->e_flags |= ehdr->e_flags; 1107c478bd9Sstevel@tonic-gate } 1117c478bd9Sstevel@tonic-gate 112ba2be530Sab static void 1135aefb655Srie ld_mach_make_dynamic(Ofl_desc *ofl, size_t *cnt) 1147c478bd9Sstevel@tonic-gate { 1157c478bd9Sstevel@tonic-gate if (!(ofl->ofl_flags & FLG_OF_RELOBJ)) { 1167c478bd9Sstevel@tonic-gate /* 1177c478bd9Sstevel@tonic-gate * Create this entry if we are going to create a PLT table. 1187c478bd9Sstevel@tonic-gate */ 1197c478bd9Sstevel@tonic-gate if (ofl->ofl_pltcnt) 1207c478bd9Sstevel@tonic-gate (*cnt)++; /* DT_PLTGOT */ 1217c478bd9Sstevel@tonic-gate } 1227c478bd9Sstevel@tonic-gate } 1237c478bd9Sstevel@tonic-gate 124ba2be530Sab static void 125d326b23bSrie ld_mach_update_odynamic(Ofl_desc *ofl, Dyn **dyn) 1267c478bd9Sstevel@tonic-gate { 1275aefb655Srie if (((ofl->ofl_flags & FLG_OF_RELOBJ) == 0) && ofl->ofl_pltcnt) { 1285aefb655Srie (*dyn)->d_tag = DT_PLTGOT; 1295aefb655Srie if (ofl->ofl_osgot) 1305aefb655Srie (*dyn)->d_un.d_ptr = ofl->ofl_osgot->os_shdr->sh_addr; 1315aefb655Srie else 1325aefb655Srie (*dyn)->d_un.d_ptr = 0; 1335aefb655Srie (*dyn)++; 1347c478bd9Sstevel@tonic-gate } 1357c478bd9Sstevel@tonic-gate } 1367c478bd9Sstevel@tonic-gate 137ba2be530Sab static Xword 1385aefb655Srie ld_calc_plt_addr(Sym_desc *sdp, Ofl_desc *ofl) 1397c478bd9Sstevel@tonic-gate { 1407c478bd9Sstevel@tonic-gate Xword value; 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate value = (Xword)(ofl->ofl_osplt->os_shdr->sh_addr) + 1437c478bd9Sstevel@tonic-gate M_PLT_RESERVSZ + ((sdp->sd_aux->sa_PLTndx - 1) * M_PLT_ENTSIZE); 1447c478bd9Sstevel@tonic-gate return (value); 1457c478bd9Sstevel@tonic-gate } 1467c478bd9Sstevel@tonic-gate 1477c478bd9Sstevel@tonic-gate /* 1487c478bd9Sstevel@tonic-gate * Build a single plt entry - code is: 1497c478bd9Sstevel@tonic-gate * if (building a.out) 1507c478bd9Sstevel@tonic-gate * JMP *got_off 1517c478bd9Sstevel@tonic-gate * else 1527c478bd9Sstevel@tonic-gate * JMP *got_off@GOT(%ebx) 1537c478bd9Sstevel@tonic-gate * PUSHL &rel_off 1547c478bd9Sstevel@tonic-gate * JMP -n(%pc) # -n is pcrel offset to first plt entry 1557c478bd9Sstevel@tonic-gate * 1567c478bd9Sstevel@tonic-gate * The got_off@GOT entry gets filled with the address of the PUSHL, 1577c478bd9Sstevel@tonic-gate * so the first pass through the plt jumps back here, jumping 1587c478bd9Sstevel@tonic-gate * in turn to the first plt entry, which jumps to the dynamic 1597c478bd9Sstevel@tonic-gate * linker. The dynamic linker then patches the GOT, rerouting 1607c478bd9Sstevel@tonic-gate * future plt calls to the proper destination. 1617c478bd9Sstevel@tonic-gate */ 1627c478bd9Sstevel@tonic-gate static void 1637c478bd9Sstevel@tonic-gate plt_entry(Ofl_desc * ofl, Word rel_off, Sym_desc * sdp) 1647c478bd9Sstevel@tonic-gate { 165b3fbe5e6Sseizo uchar_t *pltent, *gotent; 1667c478bd9Sstevel@tonic-gate Sword plt_off; 1677c478bd9Sstevel@tonic-gate Word got_off; 168ba2be530Sab int bswap = (ofl->ofl_flags1 & FLG_OF1_ENCDIFF) != 0; 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate got_off = sdp->sd_aux->sa_PLTGOTndx * M_GOT_ENTSIZE; 1717c478bd9Sstevel@tonic-gate plt_off = M_PLT_RESERVSZ + ((sdp->sd_aux->sa_PLTndx - 1) * 1727c478bd9Sstevel@tonic-gate M_PLT_ENTSIZE); 173b3fbe5e6Sseizo pltent = (uchar_t *)(ofl->ofl_osplt->os_outdata->d_buf) + plt_off; 174b3fbe5e6Sseizo gotent = (uchar_t *)(ofl->ofl_osgot->os_outdata->d_buf) + got_off; 1757c478bd9Sstevel@tonic-gate 1767c478bd9Sstevel@tonic-gate /* 1777c478bd9Sstevel@tonic-gate * Fill in the got entry with the address of the next instruction. 1787c478bd9Sstevel@tonic-gate */ 1797c478bd9Sstevel@tonic-gate /* LINTED */ 1807c478bd9Sstevel@tonic-gate *(Word *)gotent = ofl->ofl_osplt->os_shdr->sh_addr + plt_off + 181b3fbe5e6Sseizo M_PLT_INSSIZE; 182ba2be530Sab if (bswap) 183ba2be530Sab /* LINTED */ 184ba2be530Sab *(Word *)gotent = ld_bswap_Word(*(Word *)gotent); 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate if (!(ofl->ofl_flags & FLG_OF_SHAROBJ)) { 1877c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 1887c478bd9Sstevel@tonic-gate pltent[1] = M_JMP_DISP_IND; 1897c478bd9Sstevel@tonic-gate pltent += 2; 1907c478bd9Sstevel@tonic-gate /* LINTED */ 1917c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)(ofl->ofl_osgot->os_shdr->sh_addr + 192de777a60Sab got_off); 1937c478bd9Sstevel@tonic-gate } else { 1947c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 1957c478bd9Sstevel@tonic-gate pltent[1] = M_JMP_REG_DISP_IND; 1967c478bd9Sstevel@tonic-gate pltent += 2; 1977c478bd9Sstevel@tonic-gate /* LINTED */ 1987c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)got_off; 1997c478bd9Sstevel@tonic-gate } 200ba2be530Sab if (bswap) 201ba2be530Sab /* LINTED */ 202ba2be530Sab *(Word *)pltent = ld_bswap_Word(*(Word *)pltent); 2037c478bd9Sstevel@tonic-gate pltent += 4; 2047c478bd9Sstevel@tonic-gate 2057c478bd9Sstevel@tonic-gate pltent[0] = M_INST_PUSHL; 2067c478bd9Sstevel@tonic-gate pltent++; 2077c478bd9Sstevel@tonic-gate /* LINTED */ 2087c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)rel_off; 209ba2be530Sab if (bswap) 210ba2be530Sab /* LINTED */ 211ba2be530Sab *(Word *)pltent = ld_bswap_Word(*(Word *)pltent); 2127c478bd9Sstevel@tonic-gate pltent += 4; 2137c478bd9Sstevel@tonic-gate 2147c478bd9Sstevel@tonic-gate plt_off = -(plt_off + 16); /* JMP, PUSHL, JMP take 16 bytes */ 2157c478bd9Sstevel@tonic-gate pltent[0] = M_INST_JMP; 2167c478bd9Sstevel@tonic-gate pltent++; 2177c478bd9Sstevel@tonic-gate /* LINTED */ 2187c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)plt_off; 219ba2be530Sab if (bswap) 220ba2be530Sab /* LINTED */ 221ba2be530Sab *(Word *)pltent = ld_bswap_Word(*(Word *)pltent); 2227c478bd9Sstevel@tonic-gate } 2237c478bd9Sstevel@tonic-gate 224ba2be530Sab static uintptr_t 2251007fd6fSAli Bahrami ld_perform_outreloc(Rel_desc * orsp, Ofl_desc * ofl, Boolean *remain_seen) 2267c478bd9Sstevel@tonic-gate { 2277c478bd9Sstevel@tonic-gate Os_desc * relosp, * osp = 0; 2287c478bd9Sstevel@tonic-gate Word ndx, roffset, value; 2297c478bd9Sstevel@tonic-gate Rel rea; 2307c478bd9Sstevel@tonic-gate char *relbits; 2317c478bd9Sstevel@tonic-gate Sym_desc * sdp, * psym = (Sym_desc *)0; 2327c478bd9Sstevel@tonic-gate int sectmoved = 0; 2337c478bd9Sstevel@tonic-gate 2347c478bd9Sstevel@tonic-gate sdp = orsp->rel_sym; 2357c478bd9Sstevel@tonic-gate 2367c478bd9Sstevel@tonic-gate /* 2377c478bd9Sstevel@tonic-gate * If the section this relocation is against has been discarded 2387c478bd9Sstevel@tonic-gate * (-zignore), then also discard (skip) the relocation itself. 2397c478bd9Sstevel@tonic-gate */ 2407c478bd9Sstevel@tonic-gate if (orsp->rel_isdesc && ((orsp->rel_flags & 2417c478bd9Sstevel@tonic-gate (FLG_REL_GOT | FLG_REL_BSS | FLG_REL_PLT | FLG_REL_NOINFO)) == 0) && 2427c478bd9Sstevel@tonic-gate (orsp->rel_isdesc->is_flags & FLG_IS_DISCARD)) { 2435aefb655Srie DBG_CALL(Dbg_reloc_discard(ofl->ofl_lml, M_MACH, orsp)); 2447c478bd9Sstevel@tonic-gate return (1); 2457c478bd9Sstevel@tonic-gate } 2467c478bd9Sstevel@tonic-gate 2477c478bd9Sstevel@tonic-gate /* 2487c478bd9Sstevel@tonic-gate * If this is a relocation against a move table, or expanded move 2497c478bd9Sstevel@tonic-gate * table, adjust the relocation entries. 2507c478bd9Sstevel@tonic-gate */ 251bf994817SAli Bahrami if (RELAUX_GET_MOVE(orsp)) 2525aefb655Srie ld_adj_movereloc(ofl, orsp); 2537c478bd9Sstevel@tonic-gate 2547c478bd9Sstevel@tonic-gate /* 2557c478bd9Sstevel@tonic-gate * If this is a relocation against a section using a partial initialized 2567c478bd9Sstevel@tonic-gate * symbol, adjust the embedded symbol info. 2577c478bd9Sstevel@tonic-gate * 2587c478bd9Sstevel@tonic-gate * The second argument of the am_I_partial() is the value stored at the 2597c478bd9Sstevel@tonic-gate * target address relocation is going to be applied. 2607c478bd9Sstevel@tonic-gate */ 2617c478bd9Sstevel@tonic-gate if (ELF_ST_TYPE(sdp->sd_sym->st_info) == STT_SECTION) { 26257ef7aa9SRod Evans if (ofl->ofl_parsyms && 2637c478bd9Sstevel@tonic-gate (sdp->sd_isc->is_flags & FLG_IS_RELUPD) && 2647c478bd9Sstevel@tonic-gate /* LINTED */ 2655aefb655Srie (psym = ld_am_I_partial(orsp, *(Xword *) 266b3fbe5e6Sseizo ((uchar_t *)(orsp->rel_isdesc->is_indata->d_buf) + 2677c478bd9Sstevel@tonic-gate orsp->rel_roffset)))) { 2685aefb655Srie DBG_CALL(Dbg_move_outsctadj(ofl->ofl_lml, psym)); 2697c478bd9Sstevel@tonic-gate sectmoved = 1; 270de777a60Sab } 2717c478bd9Sstevel@tonic-gate } 2727c478bd9Sstevel@tonic-gate 2737c478bd9Sstevel@tonic-gate value = sdp->sd_sym->st_value; 2747c478bd9Sstevel@tonic-gate 2757c478bd9Sstevel@tonic-gate if (orsp->rel_flags & FLG_REL_GOT) { 2767c478bd9Sstevel@tonic-gate osp = ofl->ofl_osgot; 2775aefb655Srie roffset = (Word)ld_calc_got_offset(orsp, ofl); 2785aefb655Srie 2797c478bd9Sstevel@tonic-gate } else if (orsp->rel_flags & FLG_REL_PLT) { 2807c478bd9Sstevel@tonic-gate /* 2817c478bd9Sstevel@tonic-gate * Note that relocations for PLT's actually 2827c478bd9Sstevel@tonic-gate * cause a relocation againt the GOT. 2837c478bd9Sstevel@tonic-gate */ 2847c478bd9Sstevel@tonic-gate osp = ofl->ofl_osplt; 2857c478bd9Sstevel@tonic-gate roffset = (Word) (ofl->ofl_osgot->os_shdr->sh_addr) + 2867c478bd9Sstevel@tonic-gate sdp->sd_aux->sa_PLTGOTndx * M_GOT_ENTSIZE; 2877c478bd9Sstevel@tonic-gate 2887c478bd9Sstevel@tonic-gate plt_entry(ofl, osp->os_relosdesc->os_szoutrels, sdp); 2897c478bd9Sstevel@tonic-gate 2907c478bd9Sstevel@tonic-gate } else if (orsp->rel_flags & FLG_REL_BSS) { 2917c478bd9Sstevel@tonic-gate /* 2927c478bd9Sstevel@tonic-gate * This must be a R_386_COPY. For these set the roffset to 2937c478bd9Sstevel@tonic-gate * point to the new symbols location. 2947c478bd9Sstevel@tonic-gate */ 2957c478bd9Sstevel@tonic-gate osp = ofl->ofl_isbss->is_osdesc; 2967c478bd9Sstevel@tonic-gate roffset = (Word)value; 2977c478bd9Sstevel@tonic-gate } else { 298bf994817SAli Bahrami osp = RELAUX_GET_OSDESC(orsp); 2997c478bd9Sstevel@tonic-gate 3007c478bd9Sstevel@tonic-gate /* 3017c478bd9Sstevel@tonic-gate * Calculate virtual offset of reference point; equals offset 3027c478bd9Sstevel@tonic-gate * into section + vaddr of section for loadable sections, or 3037c478bd9Sstevel@tonic-gate * offset plus section displacement for nonloadable sections. 3047c478bd9Sstevel@tonic-gate */ 3057c478bd9Sstevel@tonic-gate roffset = orsp->rel_roffset + 3067c478bd9Sstevel@tonic-gate (Off)_elf_getxoff(orsp->rel_isdesc->is_indata); 3077c478bd9Sstevel@tonic-gate if (!(ofl->ofl_flags & FLG_OF_RELOBJ)) 3087c478bd9Sstevel@tonic-gate roffset += orsp->rel_isdesc->is_osdesc-> 3097c478bd9Sstevel@tonic-gate os_shdr->sh_addr; 3107c478bd9Sstevel@tonic-gate } 3117c478bd9Sstevel@tonic-gate 3127c478bd9Sstevel@tonic-gate if ((osp == 0) || ((relosp = osp->os_relosdesc) == 0)) 3137c478bd9Sstevel@tonic-gate relosp = ofl->ofl_osrel; 3147c478bd9Sstevel@tonic-gate 3157c478bd9Sstevel@tonic-gate /* 3167c478bd9Sstevel@tonic-gate * Assign the symbols index for the output relocation. If the 3177c478bd9Sstevel@tonic-gate * relocation refers to a SECTION symbol then it's index is based upon 3187c478bd9Sstevel@tonic-gate * the output sections symbols index. Otherwise the index can be 3197c478bd9Sstevel@tonic-gate * derived from the symbols index itself. 3207c478bd9Sstevel@tonic-gate */ 3217c478bd9Sstevel@tonic-gate if (orsp->rel_rtype == R_386_RELATIVE) 3227c478bd9Sstevel@tonic-gate ndx = STN_UNDEF; 3237c478bd9Sstevel@tonic-gate else if ((orsp->rel_flags & FLG_REL_SCNNDX) || 3247c478bd9Sstevel@tonic-gate (ELF_ST_TYPE(sdp->sd_sym->st_info) == STT_SECTION)) { 3257c478bd9Sstevel@tonic-gate if (sectmoved == 0) { 3267c478bd9Sstevel@tonic-gate /* 3277c478bd9Sstevel@tonic-gate * Check for a null input section. This can 3287c478bd9Sstevel@tonic-gate * occur if this relocation references a symbol 3297c478bd9Sstevel@tonic-gate * generated by sym_add_sym(). 3307c478bd9Sstevel@tonic-gate */ 33157ef7aa9SRod Evans if (sdp->sd_isc && sdp->sd_isc->is_osdesc) 33257ef7aa9SRod Evans ndx = sdp->sd_isc->is_osdesc->os_identndx; 3337c478bd9Sstevel@tonic-gate else 3347c478bd9Sstevel@tonic-gate ndx = sdp->sd_shndx; 3357c478bd9Sstevel@tonic-gate } else 33635450702SAli Bahrami ndx = ofl->ofl_parexpnndx; 3377c478bd9Sstevel@tonic-gate } else 3387c478bd9Sstevel@tonic-gate ndx = sdp->sd_symndx; 3397c478bd9Sstevel@tonic-gate 340cce0e03bSab /* 341cce0e03bSab * If we have a replacement value for the relocation 342cce0e03bSab * target, put it in place now. 343cce0e03bSab */ 344cce0e03bSab if (orsp->rel_flags & FLG_REL_NADDEND) { 345cce0e03bSab Xword addend = orsp->rel_raddend; 346cce0e03bSab uchar_t *addr; 347cce0e03bSab 348cce0e03bSab /* 349cce0e03bSab * Get the address of the data item we need to modify. 350cce0e03bSab */ 351cce0e03bSab addr = (uchar_t *)((uintptr_t)orsp->rel_roffset + 352cce0e03bSab (uintptr_t)_elf_getxoff(orsp->rel_isdesc->is_indata)); 353bf994817SAli Bahrami addr += (uintptr_t)RELAUX_GET_OSDESC(orsp)->os_outdata->d_buf; 354cce0e03bSab if (ld_reloc_targval_set(ofl, orsp, addr, addend) == 0) 355cce0e03bSab return (S_ERROR); 356cce0e03bSab } 357cce0e03bSab 358*0bc0887eSRichard Lowe if ((orsp->rel_rtype != M_R_NONE) && 359*0bc0887eSRichard Lowe (orsp->rel_rtype != M_R_RELATIVE)) { 360*0bc0887eSRichard Lowe if (ndx == 0) { 361*0bc0887eSRichard Lowe Conv_inv_buf_t inv_buf; 362*0bc0887eSRichard Lowe Is_desc *isp = orsp->rel_isdesc; 363*0bc0887eSRichard Lowe 364*0bc0887eSRichard Lowe ld_eprintf(ofl, ERR_FATAL, MSG_INTL(MSG_REL_NOSYMBOL), 365*0bc0887eSRichard Lowe conv_reloc_type(ofl->ofl_nehdr->e_machine, 366*0bc0887eSRichard Lowe orsp->rel_rtype, 0, &inv_buf), 367*0bc0887eSRichard Lowe isp->is_file->ifl_name, EC_WORD(isp->is_scnndx), 368*0bc0887eSRichard Lowe isp->is_name, EC_XWORD(roffset)); 369*0bc0887eSRichard Lowe return (S_ERROR); 370*0bc0887eSRichard Lowe } 371*0bc0887eSRichard Lowe } 3727c478bd9Sstevel@tonic-gate 3737c478bd9Sstevel@tonic-gate rea.r_info = ELF_R_INFO(ndx, orsp->rel_rtype); 3747c478bd9Sstevel@tonic-gate rea.r_offset = roffset; 3755aefb655Srie DBG_CALL(Dbg_reloc_out(ofl, ELF_DBG_LD, SHT_REL, &rea, relosp->os_name, 376bf994817SAli Bahrami ld_reloc_sym_name(orsp))); 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate /* 3797c478bd9Sstevel@tonic-gate * Assert we haven't walked off the end of our relocation table. 3807c478bd9Sstevel@tonic-gate */ 3817c478bd9Sstevel@tonic-gate assert(relosp->os_szoutrels <= relosp->os_shdr->sh_size); 3827c478bd9Sstevel@tonic-gate 383*0bc0887eSRichard Lowe relbits = (char *)relosp->os_outdata->d_buf; 384*0bc0887eSRichard Lowe 3857c478bd9Sstevel@tonic-gate (void) memcpy((relbits + relosp->os_szoutrels), 3867c478bd9Sstevel@tonic-gate (char *)&rea, sizeof (Rel)); 3877c478bd9Sstevel@tonic-gate relosp->os_szoutrels += sizeof (Rel); 3887c478bd9Sstevel@tonic-gate 3897c478bd9Sstevel@tonic-gate /* 3907c478bd9Sstevel@tonic-gate * Determine if this relocation is against a non-writable, allocatable 3917c478bd9Sstevel@tonic-gate * section. If so we may need to provide a text relocation diagnostic. 3927c478bd9Sstevel@tonic-gate * Note that relocations against the .plt (R_386_JMP_SLOT) actually 3937c478bd9Sstevel@tonic-gate * result in modifications to the .got. 3947c478bd9Sstevel@tonic-gate */ 3957c478bd9Sstevel@tonic-gate if (orsp->rel_rtype == R_386_JMP_SLOT) 3967c478bd9Sstevel@tonic-gate osp = ofl->ofl_osgot; 3977c478bd9Sstevel@tonic-gate 3981007fd6fSAli Bahrami ld_reloc_remain_entry(orsp, osp, ofl, remain_seen); 3997c478bd9Sstevel@tonic-gate return (1); 4007c478bd9Sstevel@tonic-gate } 4017c478bd9Sstevel@tonic-gate 4027c478bd9Sstevel@tonic-gate /* 4037c478bd9Sstevel@tonic-gate * i386 Instructions for TLS processing 4047c478bd9Sstevel@tonic-gate */ 405b3fbe5e6Sseizo static uchar_t tlsinstr_gd_ie[] = { 4067c478bd9Sstevel@tonic-gate /* 4077c478bd9Sstevel@tonic-gate * 0x00 movl %gs:0x0, %eax 4087c478bd9Sstevel@tonic-gate */ 4097c478bd9Sstevel@tonic-gate 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, 4107c478bd9Sstevel@tonic-gate /* 4117c478bd9Sstevel@tonic-gate * 0x06 addl x(%eax), %eax 4127c478bd9Sstevel@tonic-gate * 0x0c ... 4137c478bd9Sstevel@tonic-gate */ 4147c478bd9Sstevel@tonic-gate 0x03, 0x80, 0x00, 0x00, 0x00, 0x00 4157c478bd9Sstevel@tonic-gate }; 4167c478bd9Sstevel@tonic-gate 417b3fbe5e6Sseizo static uchar_t tlsinstr_gd_le[] = { 4187c478bd9Sstevel@tonic-gate /* 4197c478bd9Sstevel@tonic-gate * 0x00 movl %gs:0x0, %eax 4207c478bd9Sstevel@tonic-gate */ 4217c478bd9Sstevel@tonic-gate 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, 4227c478bd9Sstevel@tonic-gate /* 4237c478bd9Sstevel@tonic-gate * 0x06 addl $0x0, %eax 4247c478bd9Sstevel@tonic-gate */ 4257c478bd9Sstevel@tonic-gate 0x05, 0x00, 0x00, 0x00, 0x00, 4267c478bd9Sstevel@tonic-gate /* 4277c478bd9Sstevel@tonic-gate * 0x0b nop 4287c478bd9Sstevel@tonic-gate * 0x0c 4297c478bd9Sstevel@tonic-gate */ 4307c478bd9Sstevel@tonic-gate 0x90 4317c478bd9Sstevel@tonic-gate }; 4327c478bd9Sstevel@tonic-gate 433096c97d6SRichard Lowe static uchar_t tlsinstr_ld_le_movgs[] = { 4347c478bd9Sstevel@tonic-gate /* 435096c97d6SRichard Lowe * 0x00 movl %gs:0x0,%eax 4367c478bd9Sstevel@tonic-gate */ 437096c97d6SRichard Lowe 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, 438096c97d6SRichard Lowe }; 439096c97d6SRichard Lowe 440096c97d6SRichard Lowe /* 441096c97d6SRichard Lowe * 0x00 nopl 0(%eax,%eax) -- the intel recommended 5-byte nop 442096c97d6SRichard Lowe * See Intel® 64 and IA-32 Architectures Software Developer’s Manual 443096c97d6SRichard Lowe * Volume 2B: Instruction Set Reference, M-U 444096c97d6SRichard Lowe * Table 4-12, Recommended Multi-Byte Sequence of NOP Instruction 445096c97d6SRichard Lowe */ 446096c97d6SRichard Lowe static uchar_t tlsinstr_nop5[] = { 447096c97d6SRichard Lowe 448096c97d6SRichard Lowe 0x0f, 0x1f, 0x44, 0x00, 0x00 4497c478bd9Sstevel@tonic-gate }; 4507c478bd9Sstevel@tonic-gate 4517c478bd9Sstevel@tonic-gate #define TLS_GD_IE_MOV 0x8b /* movl opcode */ 4527c478bd9Sstevel@tonic-gate #define TLS_GD_IE_POP 0x58 /* popl + reg */ 4537c478bd9Sstevel@tonic-gate 4547c478bd9Sstevel@tonic-gate #define TLS_GD_LE_MOVL 0xb8 /* movl + reg */ 4557c478bd9Sstevel@tonic-gate 4567c478bd9Sstevel@tonic-gate #define TLS_NOP 0x90 /* NOP instruction */ 4577c478bd9Sstevel@tonic-gate 4587c478bd9Sstevel@tonic-gate #define MODRM_MSK_MOD 0xc0 4597c478bd9Sstevel@tonic-gate #define MODRM_MSK_RO 0x38 4607c478bd9Sstevel@tonic-gate #define MODRM_MSK_RM 0x07 4617c478bd9Sstevel@tonic-gate 4627c478bd9Sstevel@tonic-gate #define SIB_MSK_SS 0xc0 4637c478bd9Sstevel@tonic-gate #define SIB_MSK_IND 0x38 4647c478bd9Sstevel@tonic-gate #define SIB_MSK_BS 0x07 4657c478bd9Sstevel@tonic-gate 4665aefb655Srie static Fixupret 4675aefb655Srie tls_fixups(Ofl_desc *ofl, Rel_desc *arsp) 4687c478bd9Sstevel@tonic-gate { 4697c478bd9Sstevel@tonic-gate Sym_desc *sdp = arsp->rel_sym; 4707c478bd9Sstevel@tonic-gate Word rtype = arsp->rel_rtype; 471b3fbe5e6Sseizo uchar_t *offset, r1, r2; 4727c478bd9Sstevel@tonic-gate 473b3fbe5e6Sseizo offset = (uchar_t *)((uintptr_t)arsp->rel_roffset + 474b3fbe5e6Sseizo (uintptr_t)_elf_getxoff(arsp->rel_isdesc->is_indata) + 475bf994817SAli Bahrami (uintptr_t)RELAUX_GET_OSDESC(arsp)->os_outdata->d_buf); 4767c478bd9Sstevel@tonic-gate 4777c478bd9Sstevel@tonic-gate if (sdp->sd_ref == REF_DYN_NEED) { 4787c478bd9Sstevel@tonic-gate /* 4797c478bd9Sstevel@tonic-gate * IE reference model 4807c478bd9Sstevel@tonic-gate */ 4817c478bd9Sstevel@tonic-gate switch (rtype) { 4827c478bd9Sstevel@tonic-gate case R_386_TLS_GD: 4837c478bd9Sstevel@tonic-gate /* 4847c478bd9Sstevel@tonic-gate * Transition: 4857c478bd9Sstevel@tonic-gate * 0x0 leal x@tlsgd(,r1,1), %eax 4867c478bd9Sstevel@tonic-gate * 0x7 call ___tls_get_addr 4877c478bd9Sstevel@tonic-gate * 0xc 4887c478bd9Sstevel@tonic-gate * To: 4897c478bd9Sstevel@tonic-gate * 0x0 movl %gs:0, %eax 4907c478bd9Sstevel@tonic-gate * 0x6 addl x@gotntpoff(r1), %eax 4917c478bd9Sstevel@tonic-gate */ 4925aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 493bf994817SAli Bahrami R_386_TLS_GOTIE, arsp, ld_reloc_sym_name)); 4947c478bd9Sstevel@tonic-gate arsp->rel_rtype = R_386_TLS_GOTIE; 4957c478bd9Sstevel@tonic-gate arsp->rel_roffset += 5; 4965aefb655Srie 4977c478bd9Sstevel@tonic-gate /* 498051d39bbSrie * Adjust 'offset' to beginning of instruction 4997c478bd9Sstevel@tonic-gate * sequence. 5007c478bd9Sstevel@tonic-gate */ 5017c478bd9Sstevel@tonic-gate offset -= 3; 5027c478bd9Sstevel@tonic-gate r1 = (offset[2] & SIB_MSK_IND) >> 3; 5037c478bd9Sstevel@tonic-gate (void) memcpy(offset, tlsinstr_gd_ie, 5045aefb655Srie sizeof (tlsinstr_gd_ie)); 5055aefb655Srie 5067c478bd9Sstevel@tonic-gate /* 5077c478bd9Sstevel@tonic-gate * set register %r1 into the addl 5087c478bd9Sstevel@tonic-gate * instruction. 5097c478bd9Sstevel@tonic-gate */ 5107c478bd9Sstevel@tonic-gate offset[0x7] |= r1; 5117c478bd9Sstevel@tonic-gate return (FIX_RELOC); 5125aefb655Srie 5137c478bd9Sstevel@tonic-gate case R_386_TLS_GD_PLT: 5147c478bd9Sstevel@tonic-gate /* 5157c478bd9Sstevel@tonic-gate * Fixup done via the TLS_GD relocation 5167c478bd9Sstevel@tonic-gate */ 5175aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 518bf994817SAli Bahrami R_386_NONE, arsp, ld_reloc_sym_name)); 5197c478bd9Sstevel@tonic-gate return (FIX_DONE); 5207c478bd9Sstevel@tonic-gate } 5217c478bd9Sstevel@tonic-gate } 5227c478bd9Sstevel@tonic-gate 5237c478bd9Sstevel@tonic-gate /* 5247c478bd9Sstevel@tonic-gate * LE reference model 5257c478bd9Sstevel@tonic-gate */ 5267c478bd9Sstevel@tonic-gate switch (rtype) { 5277c478bd9Sstevel@tonic-gate case R_386_TLS_GD: 5287c478bd9Sstevel@tonic-gate /* 5297c478bd9Sstevel@tonic-gate * Transition: 5307c478bd9Sstevel@tonic-gate * 0x0 leal x@tlsgd(,r1,1), %eax 5317c478bd9Sstevel@tonic-gate * 0x7 call ___tls_get_addr 5327c478bd9Sstevel@tonic-gate * 0xc 5337c478bd9Sstevel@tonic-gate * To: 5347c478bd9Sstevel@tonic-gate * 0x0 movl %gs:0, %eax 5357c478bd9Sstevel@tonic-gate * 0x6 addl $x@ntpoff, %eax 5367c478bd9Sstevel@tonic-gate * 0xb nop 5377c478bd9Sstevel@tonic-gate * 0xc 5387c478bd9Sstevel@tonic-gate */ 5395aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 540bf994817SAli Bahrami R_386_TLS_LE, arsp, ld_reloc_sym_name)); 5417c478bd9Sstevel@tonic-gate 5427c478bd9Sstevel@tonic-gate arsp->rel_rtype = R_386_TLS_LE; 5437c478bd9Sstevel@tonic-gate arsp->rel_roffset += 4; 5445aefb655Srie 5457c478bd9Sstevel@tonic-gate /* 546051d39bbSrie * Adjust 'offset' to beginning of instruction 5477c478bd9Sstevel@tonic-gate * sequence. 5487c478bd9Sstevel@tonic-gate */ 5497c478bd9Sstevel@tonic-gate offset -= 3; 5507c478bd9Sstevel@tonic-gate (void) memcpy(offset, tlsinstr_gd_le, 5515aefb655Srie sizeof (tlsinstr_gd_le)); 5527c478bd9Sstevel@tonic-gate return (FIX_RELOC); 5535aefb655Srie 5547c478bd9Sstevel@tonic-gate case R_386_TLS_GD_PLT: 5557c478bd9Sstevel@tonic-gate case R_386_PLT32: 5567c478bd9Sstevel@tonic-gate /* 557096c97d6SRichard Lowe * Fixup done via the TLS_GD/TLS_LDM relocation processing 558096c97d6SRichard Lowe * and ld_reloc_plt() handling __tls_get_addr(). 5597c478bd9Sstevel@tonic-gate */ 5605aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 561bf994817SAli Bahrami R_386_NONE, arsp, ld_reloc_sym_name)); 5627c478bd9Sstevel@tonic-gate return (FIX_DONE); 5635aefb655Srie 5647c478bd9Sstevel@tonic-gate case R_386_TLS_LDM_PLT: 5655aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 566bf994817SAli Bahrami R_386_NONE, arsp, ld_reloc_sym_name)); 5675aefb655Srie 5687c478bd9Sstevel@tonic-gate /* 5697c478bd9Sstevel@tonic-gate * Transition: 5707c478bd9Sstevel@tonic-gate * call __tls_get_addr() 5717c478bd9Sstevel@tonic-gate * to: 572096c97d6SRichard Lowe * nopl 0x0(%eax,%eax) 5737c478bd9Sstevel@tonic-gate */ 574096c97d6SRichard Lowe (void) memcpy(offset - 1, tlsinstr_nop5, 575096c97d6SRichard Lowe sizeof (tlsinstr_nop5)); 5767c478bd9Sstevel@tonic-gate return (FIX_DONE); 5775aefb655Srie 5787c478bd9Sstevel@tonic-gate case R_386_TLS_LDM: 5795aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 580bf994817SAli Bahrami R_386_NONE, arsp, ld_reloc_sym_name)); 5815aefb655Srie 5827c478bd9Sstevel@tonic-gate /* 5837c478bd9Sstevel@tonic-gate * Transition: 5847c478bd9Sstevel@tonic-gate * 5857c478bd9Sstevel@tonic-gate * 0x00 leal x1@tlsldm(%ebx), %eax 5867c478bd9Sstevel@tonic-gate * 0x06 call ___tls_get_addr 5877c478bd9Sstevel@tonic-gate * 5887c478bd9Sstevel@tonic-gate * to: 5897c478bd9Sstevel@tonic-gate * 5907c478bd9Sstevel@tonic-gate * 0x00 movl %gs:0, %eax 5917c478bd9Sstevel@tonic-gate */ 592096c97d6SRichard Lowe (void) memcpy(offset - 2, tlsinstr_ld_le_movgs, 593096c97d6SRichard Lowe sizeof (tlsinstr_ld_le_movgs)); 594096c97d6SRichard Lowe 595096c97d6SRichard Lowe /* 596096c97d6SRichard Lowe * We implicitly treat this as if a R_386_TLS_LDM_PLT for the 597096c97d6SRichard Lowe * __tls_get_addr call followed it as the GNU compiler 598096c97d6SRichard Lowe * doesn't generate one. This is safe, because if one _does_ 599096c97d6SRichard Lowe * exist we'll just write the nop again. 600096c97d6SRichard Lowe */ 601096c97d6SRichard Lowe (void) memcpy(offset + 4, tlsinstr_nop5, 602096c97d6SRichard Lowe sizeof (tlsinstr_nop5)); 6037c478bd9Sstevel@tonic-gate return (FIX_DONE); 6045aefb655Srie 6057c478bd9Sstevel@tonic-gate case R_386_TLS_LDO_32: 6067c478bd9Sstevel@tonic-gate /* 6077c478bd9Sstevel@tonic-gate * Instructions: 6087c478bd9Sstevel@tonic-gate * 6097c478bd9Sstevel@tonic-gate * 0x10 leal x1@dtpoff(%eax), %edx R_386_TLS_LDO_32 6107c478bd9Sstevel@tonic-gate * to 6117c478bd9Sstevel@tonic-gate * 0x10 leal x1@ntpoff(%eax), %edx R_386_TLS_LE 6127c478bd9Sstevel@tonic-gate * 6137c478bd9Sstevel@tonic-gate */ 6147c478bd9Sstevel@tonic-gate offset -= 2; 6157c478bd9Sstevel@tonic-gate 6165aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 617bf994817SAli Bahrami R_386_TLS_LE, arsp, ld_reloc_sym_name)); 6187c478bd9Sstevel@tonic-gate arsp->rel_rtype = R_386_TLS_LE; 6197c478bd9Sstevel@tonic-gate return (FIX_RELOC); 6205aefb655Srie 6217c478bd9Sstevel@tonic-gate case R_386_TLS_GOTIE: 6227c478bd9Sstevel@tonic-gate /* 6237c478bd9Sstevel@tonic-gate * These transitions are a little different than the 6247c478bd9Sstevel@tonic-gate * others, in that we could have multiple instructions 6257c478bd9Sstevel@tonic-gate * pointed to by a single relocation. Depending upon the 6267c478bd9Sstevel@tonic-gate * instruction, we perform a different code transition. 6277c478bd9Sstevel@tonic-gate * 6287c478bd9Sstevel@tonic-gate * Here's the known transitions: 6297c478bd9Sstevel@tonic-gate * 6307c478bd9Sstevel@tonic-gate * 1) movl foo@gotntpoff(%reg1), %reg2 6317c478bd9Sstevel@tonic-gate * 0x8b, 0x80 | (reg2 << 3) | reg1, foo@gotntpoff 6327c478bd9Sstevel@tonic-gate * 6337c478bd9Sstevel@tonic-gate * 2) addl foo@gotntpoff(%reg1), %reg2 6347c478bd9Sstevel@tonic-gate * 0x03, 0x80 | (reg2 << 3) | reg1, foo@gotntpoff 6357c478bd9Sstevel@tonic-gate * 6367c478bd9Sstevel@tonic-gate * Transitions IE -> LE 6377c478bd9Sstevel@tonic-gate * 6387c478bd9Sstevel@tonic-gate * 1) movl $foo@ntpoff, %reg2 6397c478bd9Sstevel@tonic-gate * 0xc7, 0xc0 | reg2, foo@ntpoff 6407c478bd9Sstevel@tonic-gate * 6417c478bd9Sstevel@tonic-gate * 2) addl $foo@ntpoff, %reg2 6427c478bd9Sstevel@tonic-gate * 0x81, 0xc0 | reg2, foo@ntpoff 6437c478bd9Sstevel@tonic-gate * 6447c478bd9Sstevel@tonic-gate * Note: reg1 != 4 (%esp) 6457c478bd9Sstevel@tonic-gate */ 6465aefb655Srie DBG_CALL(Dbg_reloc_transition(ofl->ofl_lml, M_MACH, 647bf994817SAli Bahrami R_386_TLS_LE, arsp, ld_reloc_sym_name)); 6487c478bd9Sstevel@tonic-gate arsp->rel_rtype = R_386_TLS_LE; 6495aefb655Srie 6507c478bd9Sstevel@tonic-gate offset -= 2; 6517c478bd9Sstevel@tonic-gate r2 = (offset[1] & MODRM_MSK_RO) >> 3; 6527c478bd9Sstevel@tonic-gate if (offset[0] == 0x8b) { 6537c478bd9Sstevel@tonic-gate /* case 1 above */ 6547c478bd9Sstevel@tonic-gate offset[0] = 0xc7; /* movl */ 6557c478bd9Sstevel@tonic-gate offset[1] = 0xc0 | r2; 6567c478bd9Sstevel@tonic-gate return (FIX_RELOC); 6577c478bd9Sstevel@tonic-gate } 6587c478bd9Sstevel@tonic-gate 6597c478bd9Sstevel@tonic-gate if (offset[0] == 0x03) { 6607c478bd9Sstevel@tonic-gate /* case 2 above */ 6617c478bd9Sstevel@tonic-gate assert(offset[0] == 0x03); 6627c478bd9Sstevel@tonic-gate offset[0] = 0x81; /* addl */ 6637c478bd9Sstevel@tonic-gate offset[1] = 0xc0 | r2; 6647c478bd9Sstevel@tonic-gate return (FIX_RELOC); 6657c478bd9Sstevel@tonic-gate } 6667c478bd9Sstevel@tonic-gate 6677c478bd9Sstevel@tonic-gate /* 6687c478bd9Sstevel@tonic-gate * Unexpected instruction sequence - fatal error. 6697c478bd9Sstevel@tonic-gate */ 670de777a60Sab { 671de777a60Sab Conv_inv_buf_t inv_buf; 672de777a60Sab 6731007fd6fSAli Bahrami ld_eprintf(ofl, ERR_FATAL, MSG_INTL(MSG_REL_BADTLSINS), 674de777a60Sab conv_reloc_386_type(arsp->rel_rtype, 0, &inv_buf), 675de777a60Sab arsp->rel_isdesc->is_file->ifl_name, 676bf994817SAli Bahrami ld_reloc_sym_name(arsp), 677de777a60Sab arsp->rel_isdesc->is_name, 678de777a60Sab EC_OFF(arsp->rel_roffset)); 679de777a60Sab } 6807c478bd9Sstevel@tonic-gate return (FIX_ERROR); 6815aefb655Srie 6827c478bd9Sstevel@tonic-gate case R_386_TLS_IE: 6837c478bd9Sstevel@tonic-gate /* 6847c478bd9Sstevel@tonic-gate * These transitions are a little different than the 6857c478bd9Sstevel@tonic-gate * others, in that we could have multiple instructions 6867c478bd9Sstevel@tonic-gate * pointed to by a single relocation. Depending upon the 6877c478bd9Sstevel@tonic-gate * instruction, we perform a different code transition. 6887c478bd9Sstevel@tonic-gate * 6897c478bd9Sstevel@tonic-gate * Here's the known transitions: 6907c478bd9Sstevel@tonic-gate * 1) movl foo@indntpoff, %eax 6917c478bd9Sstevel@tonic-gate * 0xa1, foo@indntpoff 6927c478bd9Sstevel@tonic-gate * 6937c478bd9Sstevel@tonic-gate * 2) movl foo@indntpoff, %eax 6947c478bd9Sstevel@tonic-gate * 0x8b, 0x05 | (reg << 3), foo@gotntpoff 6957c478bd9Sstevel@tonic-gate * 6967c478bd9Sstevel@tonic-gate * 3) addl foo@indntpoff, %eax 6977c478bd9Sstevel@tonic-gate * 0x03, 0x05 | (reg << 3), foo@gotntpoff 6987c478bd9Sstevel@tonic-gate * 6997c478bd9Sstevel@tonic-gate * Transitions IE -> LE 7007c478bd9Sstevel@tonic-gate * 7017c478bd9Sstevel@tonic-gate * 1) movl $foo@ntpoff, %eax 7027c478bd9Sstevel@tonic-gate * 0xb8, foo@ntpoff 7037c478bd9Sstevel@tonic-gate * 7047c478bd9Sstevel@tonic-gate * 2) movl $foo@ntpoff, %reg 7057c478bd9Sstevel@tonic-gate * 0xc7, 0xc0 | reg, foo@ntpoff 7067c478bd9Sstevel@tonic-gate * 7077c478bd9Sstevel@tonic-gate * 3) addl $foo@ntpoff, %reg 7087c478bd9Sstevel@tonic-gate * 0x81, 0xc0 | reg, foo@ntpoff 7097c478bd9Sstevel@tonic-gate */ 7107c478bd9Sstevel@tonic-gate arsp->rel_rtype = R_386_TLS_LE; 7117c478bd9Sstevel@tonic-gate offset--; 7127c478bd9Sstevel@tonic-gate if (offset[0] == 0xa1) { 7137c478bd9Sstevel@tonic-gate /* case 1 above */ 7147c478bd9Sstevel@tonic-gate offset[0] = 0xb8; /* movl */ 7157c478bd9Sstevel@tonic-gate return (FIX_RELOC); 7167c478bd9Sstevel@tonic-gate } 7177c478bd9Sstevel@tonic-gate 7187c478bd9Sstevel@tonic-gate offset--; 7197c478bd9Sstevel@tonic-gate if (offset[0] == 0x8b) { 7207c478bd9Sstevel@tonic-gate /* case 2 above */ 7217c478bd9Sstevel@tonic-gate r2 = (offset[1] & MODRM_MSK_RO) >> 3; 7227c478bd9Sstevel@tonic-gate offset[0] = 0xc7; /* movl */ 7237c478bd9Sstevel@tonic-gate offset[1] = 0xc0 | r2; 7247c478bd9Sstevel@tonic-gate return (FIX_RELOC); 7257c478bd9Sstevel@tonic-gate } 7267c478bd9Sstevel@tonic-gate if (offset[0] == 0x03) { 7277c478bd9Sstevel@tonic-gate /* case 3 above */ 7287c478bd9Sstevel@tonic-gate r2 = (offset[1] & MODRM_MSK_RO) >> 3; 7297c478bd9Sstevel@tonic-gate offset[0] = 0x81; /* addl */ 7307c478bd9Sstevel@tonic-gate offset[1] = 0xc0 | r2; 7317c478bd9Sstevel@tonic-gate return (FIX_RELOC); 7327c478bd9Sstevel@tonic-gate } 7337c478bd9Sstevel@tonic-gate /* 7347c478bd9Sstevel@tonic-gate * Unexpected instruction sequence - fatal error. 7357c478bd9Sstevel@tonic-gate */ 736de777a60Sab { 737de777a60Sab Conv_inv_buf_t inv_buf; 738de777a60Sab 7391007fd6fSAli Bahrami ld_eprintf(ofl, ERR_FATAL, MSG_INTL(MSG_REL_BADTLSINS), 740de777a60Sab conv_reloc_386_type(arsp->rel_rtype, 0, &inv_buf), 741de777a60Sab arsp->rel_isdesc->is_file->ifl_name, 742bf994817SAli Bahrami ld_reloc_sym_name(arsp), 743de777a60Sab arsp->rel_isdesc->is_name, 744de777a60Sab EC_OFF(arsp->rel_roffset)); 745de777a60Sab } 7467c478bd9Sstevel@tonic-gate return (FIX_ERROR); 7477c478bd9Sstevel@tonic-gate } 7487c478bd9Sstevel@tonic-gate return (FIX_RELOC); 7497c478bd9Sstevel@tonic-gate } 7507c478bd9Sstevel@tonic-gate 751ba2be530Sab static uintptr_t 7525aefb655Srie ld_do_activerelocs(Ofl_desc *ofl) 7537c478bd9Sstevel@tonic-gate { 754141040e8Srie Rel_desc *arsp; 755bf994817SAli Bahrami Rel_cachebuf *rcbp; 75657ef7aa9SRod Evans Aliste idx; 7577c478bd9Sstevel@tonic-gate uintptr_t return_code = 1; 7581d9df23bSab ofl_flag_t flags = ofl->ofl_flags; 7597c478bd9Sstevel@tonic-gate 760bf994817SAli Bahrami if (aplist_nitems(ofl->ofl_actrels.rc_list) != 0) 7617010c12aSrie DBG_CALL(Dbg_reloc_doact_title(ofl->ofl_lml)); 7627010c12aSrie 7637c478bd9Sstevel@tonic-gate /* 764141040e8Srie * Process active relocations. 7657c478bd9Sstevel@tonic-gate */ 766bf994817SAli Bahrami REL_CACHE_TRAVERSE(&ofl->ofl_actrels, idx, rcbp, arsp) { 767bf994817SAli Bahrami uchar_t *addr; 768096c97d6SRichard Lowe Xword value; 769bf994817SAli Bahrami Sym_desc *sdp; 770bf994817SAli Bahrami const char *ifl_name; 771bf994817SAli Bahrami Xword refaddr; 772bf994817SAli Bahrami int moved = 0; 773bf994817SAli Bahrami Gotref gref; 774bf994817SAli Bahrami Os_desc *osp; 7757c478bd9Sstevel@tonic-gate 776bf994817SAli Bahrami /* 777bf994817SAli Bahrami * If the section this relocation is against has been discarded 778bf994817SAli Bahrami * (-zignore), then discard (skip) the relocation itself. 779bf994817SAli Bahrami */ 780bf994817SAli Bahrami if ((arsp->rel_isdesc->is_flags & FLG_IS_DISCARD) && 781bf994817SAli Bahrami ((arsp->rel_flags & (FLG_REL_GOT | FLG_REL_BSS | 782bf994817SAli Bahrami FLG_REL_PLT | FLG_REL_NOINFO)) == 0)) { 783bf994817SAli Bahrami DBG_CALL(Dbg_reloc_discard(ofl->ofl_lml, M_MACH, arsp)); 784bf994817SAli Bahrami continue; 785bf994817SAli Bahrami } 7867c478bd9Sstevel@tonic-gate 787bf994817SAli Bahrami /* 788bf994817SAli Bahrami * We determine what the 'got reference' model (if required) 789bf994817SAli Bahrami * is at this point. This needs to be done before tls_fixup() 790bf994817SAli Bahrami * since it may 'transition' our instructions. 791bf994817SAli Bahrami * 792bf994817SAli Bahrami * The got table entries have already been assigned, 793bf994817SAli Bahrami * and we bind to those initial entries. 794bf994817SAli Bahrami */ 795bf994817SAli Bahrami if (arsp->rel_flags & FLG_REL_DTLS) 796bf994817SAli Bahrami gref = GOT_REF_TLSGD; 797bf994817SAli Bahrami else if (arsp->rel_flags & FLG_REL_MTLS) 798bf994817SAli Bahrami gref = GOT_REF_TLSLD; 799bf994817SAli Bahrami else if (arsp->rel_flags & FLG_REL_STLS) 800bf994817SAli Bahrami gref = GOT_REF_TLSIE; 801bf994817SAli Bahrami else 802bf994817SAli Bahrami gref = GOT_REF_GENERIC; 8037c478bd9Sstevel@tonic-gate 804bf994817SAli Bahrami /* 805bf994817SAli Bahrami * Perform any required TLS fixups. 806bf994817SAli Bahrami */ 807bf994817SAli Bahrami if (arsp->rel_flags & FLG_REL_TLSFIX) { 808bf994817SAli Bahrami Fixupret ret; 8097c478bd9Sstevel@tonic-gate 810bf994817SAli Bahrami if ((ret = tls_fixups(ofl, arsp)) == FIX_ERROR) 811bf994817SAli Bahrami return (S_ERROR); 812bf994817SAli Bahrami if (ret == FIX_DONE) 813bf994817SAli Bahrami continue; 814bf994817SAli Bahrami } 8157c478bd9Sstevel@tonic-gate 816bf994817SAli Bahrami /* 817bf994817SAli Bahrami * If this is a relocation against a move table, or 818bf994817SAli Bahrami * expanded move table, adjust the relocation entries. 819bf994817SAli Bahrami */ 820bf994817SAli Bahrami if (RELAUX_GET_MOVE(arsp)) 821bf994817SAli Bahrami ld_adj_movereloc(ofl, arsp); 822bf994817SAli Bahrami 823bf994817SAli Bahrami sdp = arsp->rel_sym; 824bf994817SAli Bahrami refaddr = arsp->rel_roffset + 825bf994817SAli Bahrami (Off)_elf_getxoff(arsp->rel_isdesc->is_indata); 826bf994817SAli Bahrami 827bf994817SAli Bahrami if (arsp->rel_flags & FLG_REL_CLVAL) 828bf994817SAli Bahrami value = 0; 829bf994817SAli Bahrami else if (ELF_ST_TYPE(sdp->sd_sym->st_info) == STT_SECTION) { 8307c478bd9Sstevel@tonic-gate /* 831bf994817SAli Bahrami * The value for a symbol pointing to a SECTION 832bf994817SAli Bahrami * is based off of that sections position. 8337c478bd9Sstevel@tonic-gate */ 834bf994817SAli Bahrami if (sdp->sd_isc->is_flags & FLG_IS_RELUPD) { 835bf994817SAli Bahrami Sym_desc *sym; 836bf994817SAli Bahrami Xword radd; 837bf994817SAli Bahrami uchar_t *raddr = (uchar_t *) 838bf994817SAli Bahrami arsp->rel_isdesc->is_indata->d_buf + 839bf994817SAli Bahrami arsp->rel_roffset; 8407c478bd9Sstevel@tonic-gate 8417c478bd9Sstevel@tonic-gate /* 842bf994817SAli Bahrami * This is a REL platform. Hence, the second 843bf994817SAli Bahrami * argument of ld_am_I_partial() is the value 844bf994817SAli Bahrami * stored at the target address where the 845bf994817SAli Bahrami * relocation is going to be applied. 8467c478bd9Sstevel@tonic-gate */ 847bf994817SAli Bahrami if (ld_reloc_targval_get(ofl, arsp, raddr, 848bf994817SAli Bahrami &radd) == 0) 849bf994817SAli Bahrami return (S_ERROR); 850bf994817SAli Bahrami sym = ld_am_I_partial(arsp, radd); 851bf994817SAli Bahrami if (sym) { 852bf994817SAli Bahrami Sym *osym = sym->sd_osym; 853b26cc8daSAli Bahrami 8547c478bd9Sstevel@tonic-gate /* 855bf994817SAli Bahrami * The symbol was moved, so adjust the 856bf994817SAli Bahrami * value relative to the new section. 8577c478bd9Sstevel@tonic-gate */ 858bf994817SAli Bahrami value = sym->sd_sym->st_value; 859bf994817SAli Bahrami moved = 1; 860bf994817SAli Bahrami 861bf994817SAli Bahrami /* 862bf994817SAli Bahrami * The original raddend covers the 863bf994817SAli Bahrami * displacement from the section start 864bf994817SAli Bahrami * to the desired address. The value 865bf994817SAli Bahrami * computed above gets us from the 866bf994817SAli Bahrami * section start to the start of the 867bf994817SAli Bahrami * symbol range. Adjust the old raddend 868bf994817SAli Bahrami * to remove the offset from section 869bf994817SAli Bahrami * start to symbol start, leaving the 870bf994817SAli Bahrami * displacement within the range of 871bf994817SAli Bahrami * the symbol. 872bf994817SAli Bahrami */ 873bf994817SAli Bahrami if (osym->st_value != 0) { 874bf994817SAli Bahrami radd -= osym->st_value; 875bf994817SAli Bahrami if (ld_reloc_targval_set(ofl, 876bf994817SAli Bahrami arsp, raddr, radd) == 0) 877bf994817SAli Bahrami return (S_ERROR); 878b26cc8daSAli Bahrami } 879b26cc8daSAli Bahrami } 880bf994817SAli Bahrami } 881bf994817SAli Bahrami if (!moved) { 882bf994817SAli Bahrami value = _elf_getxoff(sdp->sd_isc->is_indata); 883bf994817SAli Bahrami if (sdp->sd_isc->is_shdr->sh_flags & SHF_ALLOC) 884bf994817SAli Bahrami value += sdp->sd_isc-> 885bf994817SAli Bahrami is_osdesc->os_shdr->sh_addr; 886bf994817SAli Bahrami } 887bf994817SAli Bahrami if (sdp->sd_isc->is_shdr->sh_flags & SHF_TLS) 888bf994817SAli Bahrami value -= ofl->ofl_tlsphdr->p_vaddr; 8892926dd2eSrie 890bf994817SAli Bahrami } else if (IS_SIZE(arsp->rel_rtype)) { 891bf994817SAli Bahrami /* 892bf994817SAli Bahrami * Size relocations require the symbols size. 893bf994817SAli Bahrami */ 894bf994817SAli Bahrami value = sdp->sd_sym->st_size; 89508278a5eSRod Evans 896bf994817SAli Bahrami } else if ((sdp->sd_flags & FLG_SY_CAP) && 897bf994817SAli Bahrami sdp->sd_aux && sdp->sd_aux->sa_PLTndx) { 898bf994817SAli Bahrami /* 899bf994817SAli Bahrami * If relocation is against a capabilities symbol, we 900bf994817SAli Bahrami * need to jump to an associated PLT, so that at runtime 901bf994817SAli Bahrami * ld.so.1 is involved to determine the best binding 902bf994817SAli Bahrami * choice. Otherwise, the value is the symbols value. 903bf994817SAli Bahrami */ 904bf994817SAli Bahrami value = ld_calc_plt_addr(sdp, ofl); 905bf994817SAli Bahrami 906bf994817SAli Bahrami } else 907bf994817SAli Bahrami value = sdp->sd_sym->st_value; 908bf994817SAli Bahrami 909bf994817SAli Bahrami /* 910bf994817SAli Bahrami * Relocation against the GLOBAL_OFFSET_TABLE. 911bf994817SAli Bahrami */ 912bf994817SAli Bahrami if ((arsp->rel_flags & FLG_REL_GOT) && 913bf994817SAli Bahrami !ld_reloc_set_aux_osdesc(ofl, arsp, ofl->ofl_osgot)) 914bf994817SAli Bahrami return (S_ERROR); 915bf994817SAli Bahrami osp = RELAUX_GET_OSDESC(arsp); 916bf994817SAli Bahrami 917bf994817SAli Bahrami /* 918bf994817SAli Bahrami * If loadable and not producing a relocatable object add the 919bf994817SAli Bahrami * sections virtual address to the reference address. 920bf994817SAli Bahrami */ 921bf994817SAli Bahrami if ((arsp->rel_flags & FLG_REL_LOAD) && 922bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) 923bf994817SAli Bahrami refaddr += 924bf994817SAli Bahrami arsp->rel_isdesc->is_osdesc->os_shdr->sh_addr; 925bf994817SAli Bahrami 926bf994817SAli Bahrami /* 927bf994817SAli Bahrami * If this entry has a PLT assigned to it, its value is actually 928bf994817SAli Bahrami * the address of the PLT (and not the address of the function). 929bf994817SAli Bahrami */ 930bf994817SAli Bahrami if (IS_PLT(arsp->rel_rtype)) { 931bf994817SAli Bahrami if (sdp->sd_aux && sdp->sd_aux->sa_PLTndx) 93208278a5eSRod Evans value = ld_calc_plt_addr(sdp, ofl); 933bf994817SAli Bahrami } 93408278a5eSRod Evans 935bf994817SAli Bahrami /* 936bf994817SAli Bahrami * Determine whether the value needs further adjustment. Filter 937bf994817SAli Bahrami * through the attributes of the relocation to determine what 938bf994817SAli Bahrami * adjustment is required. Note, many of the following cases 939bf994817SAli Bahrami * are only applicable when a .got is present. As a .got is 940bf994817SAli Bahrami * not generated when a relocatable object is being built, 941bf994817SAli Bahrami * any adjustments that require a .got need to be skipped. 942bf994817SAli Bahrami */ 943bf994817SAli Bahrami if ((arsp->rel_flags & FLG_REL_GOT) && 944bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 945bf994817SAli Bahrami Xword R1addr; 946bf994817SAli Bahrami uintptr_t R2addr; 947bf994817SAli Bahrami Word gotndx; 948bf994817SAli Bahrami Gotndx *gnp; 9497c478bd9Sstevel@tonic-gate 9507c478bd9Sstevel@tonic-gate /* 951bf994817SAli Bahrami * Perform relocation against GOT table. Since this 952bf994817SAli Bahrami * doesn't fit exactly into a relocation we place the 953bf994817SAli Bahrami * appropriate byte in the GOT directly 954bf994817SAli Bahrami * 955bf994817SAli Bahrami * Calculate offset into GOT at which to apply 956bf994817SAli Bahrami * the relocation. 9577c478bd9Sstevel@tonic-gate */ 958bf994817SAli Bahrami gnp = ld_find_got_ndx(sdp->sd_GOTndxs, gref, ofl, NULL); 959bf994817SAli Bahrami assert(gnp); 9607c478bd9Sstevel@tonic-gate 961bf994817SAli Bahrami if (arsp->rel_rtype == R_386_TLS_DTPOFF32) 962bf994817SAli Bahrami gotndx = gnp->gn_gotndx + 1; 963bf994817SAli Bahrami else 964bf994817SAli Bahrami gotndx = gnp->gn_gotndx; 965bf994817SAli Bahrami 966bf994817SAli Bahrami R1addr = (Xword)(gotndx * M_GOT_ENTSIZE); 9677c478bd9Sstevel@tonic-gate 9687c478bd9Sstevel@tonic-gate /* 969bf994817SAli Bahrami * Add the GOTs data's offset. 9707c478bd9Sstevel@tonic-gate */ 971bf994817SAli Bahrami R2addr = R1addr + (uintptr_t)osp->os_outdata->d_buf; 972bf994817SAli Bahrami 973bf994817SAli Bahrami DBG_CALL(Dbg_reloc_doact(ofl->ofl_lml, ELF_DBG_LD_ACT, 974bf994817SAli Bahrami M_MACH, SHT_REL, arsp, R1addr, value, 975bf994817SAli Bahrami ld_reloc_sym_name)); 9767c478bd9Sstevel@tonic-gate 977141040e8Srie /* 978bf994817SAli Bahrami * And do it. 979141040e8Srie */ 980bf994817SAli Bahrami if (ofl->ofl_flags1 & FLG_OF1_ENCDIFF) 981bf994817SAli Bahrami *(Xword *)R2addr = ld_bswap_Xword(value); 982bf994817SAli Bahrami else 983bf994817SAli Bahrami *(Xword *)R2addr = value; 984bf994817SAli Bahrami continue; 985bf994817SAli Bahrami 986bf994817SAli Bahrami } else if (IS_GOT_BASED(arsp->rel_rtype) && 987bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 988bf994817SAli Bahrami value -= ofl->ofl_osgot->os_shdr->sh_addr; 989bf994817SAli Bahrami 990bf994817SAli Bahrami } else if (IS_GOT_PC(arsp->rel_rtype) && 991bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 992bf994817SAli Bahrami value = (Xword)(ofl->ofl_osgot->os_shdr->sh_addr) - 993bf994817SAli Bahrami refaddr; 994bf994817SAli Bahrami 995bf994817SAli Bahrami } else if ((IS_PC_RELATIVE(arsp->rel_rtype)) && 996bf994817SAli Bahrami (((flags & FLG_OF_RELOBJ) == 0) || 997bf994817SAli Bahrami (osp == sdp->sd_isc->is_osdesc))) { 998bf994817SAli Bahrami value -= refaddr; 999bf994817SAli Bahrami 1000bf994817SAli Bahrami } else if (IS_TLS_INS(arsp->rel_rtype) && 1001bf994817SAli Bahrami IS_GOT_RELATIVE(arsp->rel_rtype) && 1002bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 1003bf994817SAli Bahrami Gotndx *gnp; 1004bf994817SAli Bahrami 1005bf994817SAli Bahrami gnp = ld_find_got_ndx(sdp->sd_GOTndxs, gref, ofl, NULL); 1006bf994817SAli Bahrami assert(gnp); 1007bf994817SAli Bahrami value = (Xword)gnp->gn_gotndx * M_GOT_ENTSIZE; 1008bf994817SAli Bahrami if (arsp->rel_rtype == R_386_TLS_IE) { 1009bf994817SAli Bahrami value += ofl->ofl_osgot->os_shdr->sh_addr; 1010bf994817SAli Bahrami } 10117c478bd9Sstevel@tonic-gate 1012bf994817SAli Bahrami } else if (IS_GOT_RELATIVE(arsp->rel_rtype) && 1013bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 1014bf994817SAli Bahrami Gotndx *gnp; 10157c478bd9Sstevel@tonic-gate 1016bf994817SAli Bahrami gnp = ld_find_got_ndx(sdp->sd_GOTndxs, 1017bf994817SAli Bahrami GOT_REF_GENERIC, ofl, NULL); 1018bf994817SAli Bahrami assert(gnp); 1019bf994817SAli Bahrami value = (Xword)gnp->gn_gotndx * M_GOT_ENTSIZE; 10207c478bd9Sstevel@tonic-gate 1021bf994817SAli Bahrami } else if ((arsp->rel_flags & FLG_REL_STLS) && 1022bf994817SAli Bahrami ((flags & FLG_OF_RELOBJ) == 0)) { 1023bf994817SAli Bahrami Xword tlsstatsize; 10247c478bd9Sstevel@tonic-gate 1025bf994817SAli Bahrami /* 1026bf994817SAli Bahrami * This is the LE TLS reference model. Static 1027bf994817SAli Bahrami * offset is hard-coded. 1028bf994817SAli Bahrami */ 1029bf994817SAli Bahrami tlsstatsize = S_ROUND(ofl->ofl_tlsphdr->p_memsz, 1030bf994817SAli Bahrami M_TLSSTATALIGN); 1031bf994817SAli Bahrami value = tlsstatsize - value; 10327c478bd9Sstevel@tonic-gate 1033bf994817SAli Bahrami /* 1034bf994817SAli Bahrami * Since this code is fixed up, it assumes a 1035bf994817SAli Bahrami * negative offset that can be added to the 1036bf994817SAli Bahrami * thread pointer. 1037bf994817SAli Bahrami */ 1038bf994817SAli Bahrami if ((arsp->rel_rtype == R_386_TLS_LDO_32) || 1039bf994817SAli Bahrami (arsp->rel_rtype == R_386_TLS_LE)) 1040bf994817SAli Bahrami value = -value; 1041bf994817SAli Bahrami } 10427c478bd9Sstevel@tonic-gate 1043bf994817SAli Bahrami if (arsp->rel_isdesc->is_file) 1044bf994817SAli Bahrami ifl_name = arsp->rel_isdesc->is_file->ifl_name; 1045bf994817SAli Bahrami else 1046bf994817SAli Bahrami ifl_name = MSG_INTL(MSG_STR_NULL); 1047141040e8Srie 1048bf994817SAli Bahrami /* 1049bf994817SAli Bahrami * Make sure we have data to relocate. Compiler and assembler 1050bf994817SAli Bahrami * developers have been known to generate relocations against 1051bf994817SAli Bahrami * invalid sections (normally .bss), so for their benefit give 1052bf994817SAli Bahrami * them sufficient information to help analyze the problem. 1053bf994817SAli Bahrami * End users should never see this. 1054bf994817SAli Bahrami */ 1055bf994817SAli Bahrami if (arsp->rel_isdesc->is_indata->d_buf == 0) { 1056bf994817SAli Bahrami Conv_inv_buf_t inv_buf; 10577c478bd9Sstevel@tonic-gate 10581007fd6fSAli Bahrami ld_eprintf(ofl, ERR_FATAL, MSG_INTL(MSG_REL_EMPTYSEC), 1059bf994817SAli Bahrami conv_reloc_386_type(arsp->rel_rtype, 0, &inv_buf), 1060bf994817SAli Bahrami ifl_name, ld_reloc_sym_name(arsp), 1061bf994817SAli Bahrami EC_WORD(arsp->rel_isdesc->is_scnndx), 1062bf994817SAli Bahrami arsp->rel_isdesc->is_name); 1063bf994817SAli Bahrami return (S_ERROR); 1064bf994817SAli Bahrami } 1065141040e8Srie 1066bf994817SAli Bahrami /* 1067bf994817SAli Bahrami * Get the address of the data item we need to modify. 1068bf994817SAli Bahrami */ 1069bf994817SAli Bahrami addr = (uchar_t *)((uintptr_t)arsp->rel_roffset + 1070bf994817SAli Bahrami (uintptr_t)_elf_getxoff(arsp->rel_isdesc->is_indata)); 1071141040e8Srie 1072bf994817SAli Bahrami DBG_CALL(Dbg_reloc_doact(ofl->ofl_lml, ELF_DBG_LD_ACT, 1073bf994817SAli Bahrami M_MACH, SHT_REL, arsp, EC_NATPTR(addr), value, 1074bf994817SAli Bahrami ld_reloc_sym_name)); 1075bf994817SAli Bahrami addr += (uintptr_t)osp->os_outdata->d_buf; 1076141040e8Srie 1077bf994817SAli Bahrami if ((((uintptr_t)addr - (uintptr_t)ofl->ofl_nehdr) > 1078bf994817SAli Bahrami ofl->ofl_size) || (arsp->rel_roffset > 1079bf994817SAli Bahrami osp->os_shdr->sh_size)) { 1080bf994817SAli Bahrami Conv_inv_buf_t inv_buf; 1081bf994817SAli Bahrami int class; 10827c478bd9Sstevel@tonic-gate 1083bf994817SAli Bahrami if (((uintptr_t)addr - (uintptr_t)ofl->ofl_nehdr) > 1084bf994817SAli Bahrami ofl->ofl_size) 1085bf994817SAli Bahrami class = ERR_FATAL; 10867c478bd9Sstevel@tonic-gate else 1087bf994817SAli Bahrami class = ERR_WARNING; 10887c478bd9Sstevel@tonic-gate 10891007fd6fSAli Bahrami ld_eprintf(ofl, class, MSG_INTL(MSG_REL_INVALOFFSET), 1090bf994817SAli Bahrami conv_reloc_386_type(arsp->rel_rtype, 0, &inv_buf), 1091bf994817SAli Bahrami ifl_name, EC_WORD(arsp->rel_isdesc->is_scnndx), 1092bf994817SAli Bahrami arsp->rel_isdesc->is_name, ld_reloc_sym_name(arsp), 1093bf994817SAli Bahrami EC_ADDR((uintptr_t)addr - 1094bf994817SAli Bahrami (uintptr_t)ofl->ofl_nehdr)); 10957c478bd9Sstevel@tonic-gate 1096bf994817SAli Bahrami if (class == ERR_FATAL) { 1097bf994817SAli Bahrami return_code = S_ERROR; 1098bf994817SAli Bahrami continue; 10997c478bd9Sstevel@tonic-gate } 1100bf994817SAli Bahrami } 11017c478bd9Sstevel@tonic-gate 1102bf994817SAli Bahrami /* 1103bf994817SAli Bahrami * The relocation is additive. Ignore the previous symbol 1104bf994817SAli Bahrami * value if this local partial symbol is expanded. 1105bf994817SAli Bahrami */ 1106bf994817SAli Bahrami if (moved) 1107bf994817SAli Bahrami value -= *addr; 11087c478bd9Sstevel@tonic-gate 1109bf994817SAli Bahrami /* 1110bf994817SAli Bahrami * If we have a replacement value for the relocation 1111bf994817SAli Bahrami * target, put it in place now. 1112bf994817SAli Bahrami */ 1113bf994817SAli Bahrami if (arsp->rel_flags & FLG_REL_NADDEND) { 1114bf994817SAli Bahrami Xword addend = arsp->rel_raddend; 1115cce0e03bSab 1116bf994817SAli Bahrami if (ld_reloc_targval_set(ofl, arsp, addr, addend) == 0) 1117bf994817SAli Bahrami return (S_ERROR); 1118bf994817SAli Bahrami } 1119cce0e03bSab 1120bf994817SAli Bahrami /* 1121bf994817SAli Bahrami * If '-z noreloc' is specified - skip the do_reloc_ld stage. 1122bf994817SAli Bahrami */ 1123bf994817SAli Bahrami if (OFL_DO_RELOC(ofl)) { 1124bf994817SAli Bahrami if (do_reloc_ld(arsp, addr, &value, ld_reloc_sym_name, 1125bf994817SAli Bahrami ifl_name, OFL_SWAP_RELOC_DATA(ofl, arsp), 11261007fd6fSAli Bahrami ofl->ofl_lml) == 0) { 11271007fd6fSAli Bahrami ofl->ofl_flags |= FLG_OF_FATAL; 1128bf994817SAli Bahrami return_code = S_ERROR; 11291007fd6fSAli Bahrami } 11307c478bd9Sstevel@tonic-gate } 11317c478bd9Sstevel@tonic-gate } 11327c478bd9Sstevel@tonic-gate return (return_code); 11337c478bd9Sstevel@tonic-gate } 11347c478bd9Sstevel@tonic-gate 1135141040e8Srie /* 1136141040e8Srie * Add an output relocation record. 1137141040e8Srie */ 1138ba2be530Sab static uintptr_t 11395aefb655Srie ld_add_outrel(Word flags, Rel_desc *rsp, Ofl_desc *ofl) 11407c478bd9Sstevel@tonic-gate { 1141141040e8Srie Rel_desc *orsp; 1142141040e8Srie Sym_desc *sdp = rsp->rel_sym; 11437c478bd9Sstevel@tonic-gate 11447c478bd9Sstevel@tonic-gate /* 11457c478bd9Sstevel@tonic-gate * Static executables *do not* want any relocations against them. 11467c478bd9Sstevel@tonic-gate * Since our engine still creates relocations against a WEAK UNDEFINED 11477c478bd9Sstevel@tonic-gate * symbol in a static executable, it's best to disable them here 11487c478bd9Sstevel@tonic-gate * instead of through out the relocation code. 11497c478bd9Sstevel@tonic-gate */ 1150635216b6SRod Evans if (OFL_IS_STATIC_EXEC(ofl)) 11517c478bd9Sstevel@tonic-gate return (1); 11527c478bd9Sstevel@tonic-gate 1153*0bc0887eSRichard Lowe /* 1154*0bc0887eSRichard Lowe * If the symbol will be reduced, we can't leave outstanding 1155*0bc0887eSRichard Lowe * relocations against it, as nothing will ever be able to satisfy them 1156*0bc0887eSRichard Lowe * (and the symbol won't be in .dynsym 1157*0bc0887eSRichard Lowe */ 1158*0bc0887eSRichard Lowe if ((sdp != NULL) && 1159*0bc0887eSRichard Lowe (sdp->sd_sym->st_shndx == SHN_UNDEF) && 1160*0bc0887eSRichard Lowe (rsp->rel_rtype != M_R_NONE) && 1161*0bc0887eSRichard Lowe (rsp->rel_rtype != M_R_RELATIVE)) { 1162*0bc0887eSRichard Lowe if (ld_sym_reducable(ofl, sdp)) 1163*0bc0887eSRichard Lowe return (1); 1164*0bc0887eSRichard Lowe } 1165*0bc0887eSRichard Lowe 11667c478bd9Sstevel@tonic-gate /* 11677c478bd9Sstevel@tonic-gate * If we are adding a output relocation against a section 11687c478bd9Sstevel@tonic-gate * symbol (non-RELATIVE) then mark that section. These sections 11697c478bd9Sstevel@tonic-gate * will be added to the .dynsym symbol table. 11707c478bd9Sstevel@tonic-gate */ 11717c478bd9Sstevel@tonic-gate if (sdp && (rsp->rel_rtype != M_R_RELATIVE) && 11727c478bd9Sstevel@tonic-gate ((flags & FLG_REL_SCNNDX) || 11737c478bd9Sstevel@tonic-gate (ELF_ST_TYPE(sdp->sd_sym->st_info) == STT_SECTION))) { 11747c478bd9Sstevel@tonic-gate 11757c478bd9Sstevel@tonic-gate /* 11767c478bd9Sstevel@tonic-gate * If this is a COMMON symbol - no output section 11777c478bd9Sstevel@tonic-gate * exists yet - (it's created as part of sym_validate()). 11787c478bd9Sstevel@tonic-gate * So - we mark here that when it's created it should 11797c478bd9Sstevel@tonic-gate * be tagged with the FLG_OS_OUTREL flag. 11807c478bd9Sstevel@tonic-gate */ 11817c478bd9Sstevel@tonic-gate if ((sdp->sd_flags & FLG_SY_SPECSEC) && 11820bc07c75Srie (sdp->sd_sym->st_shndx == SHN_COMMON)) { 11837c478bd9Sstevel@tonic-gate if (ELF_ST_TYPE(sdp->sd_sym->st_info) != STT_TLS) 11847c478bd9Sstevel@tonic-gate ofl->ofl_flags1 |= FLG_OF1_BSSOREL; 11857c478bd9Sstevel@tonic-gate else 11867c478bd9Sstevel@tonic-gate ofl->ofl_flags1 |= FLG_OF1_TLSOREL; 1187141040e8Srie } else { 118808278a5eSRod Evans Os_desc *osp; 118908278a5eSRod Evans Is_desc *isp = sdp->sd_isc; 11907c478bd9Sstevel@tonic-gate 119108278a5eSRod Evans if (isp && ((osp = isp->is_osdesc) != NULL) && 119208278a5eSRod Evans ((osp->os_flags & FLG_OS_OUTREL) == 0)) { 11937c478bd9Sstevel@tonic-gate ofl->ofl_dynshdrcnt++; 11947c478bd9Sstevel@tonic-gate osp->os_flags |= FLG_OS_OUTREL; 11957c478bd9Sstevel@tonic-gate } 11967c478bd9Sstevel@tonic-gate } 11977c478bd9Sstevel@tonic-gate } 11987c478bd9Sstevel@tonic-gate 1199bf994817SAli Bahrami /* Enter it into the output relocation cache */ 1200bf994817SAli Bahrami if ((orsp = ld_reloc_enter(ofl, &ofl->ofl_outrels, rsp, flags)) == NULL) 1201bf994817SAli Bahrami return (S_ERROR); 12027c478bd9Sstevel@tonic-gate 12037c478bd9Sstevel@tonic-gate if (flags & FLG_REL_GOT) 12047c478bd9Sstevel@tonic-gate ofl->ofl_relocgotsz += (Xword)sizeof (Rel); 12057c478bd9Sstevel@tonic-gate else if (flags & FLG_REL_PLT) 12067c478bd9Sstevel@tonic-gate ofl->ofl_relocpltsz += (Xword)sizeof (Rel); 12077c478bd9Sstevel@tonic-gate else if (flags & FLG_REL_BSS) 12087c478bd9Sstevel@tonic-gate ofl->ofl_relocbsssz += (Xword)sizeof (Rel); 12097c478bd9Sstevel@tonic-gate else if (flags & FLG_REL_NOINFO) 12107c478bd9Sstevel@tonic-gate ofl->ofl_relocrelsz += (Xword)sizeof (Rel); 12117c478bd9Sstevel@tonic-gate else 1212bf994817SAli Bahrami RELAUX_GET_OSDESC(orsp)->os_szoutrels += (Xword)sizeof (Rel); 12137c478bd9Sstevel@tonic-gate 12147c478bd9Sstevel@tonic-gate if (orsp->rel_rtype == M_R_RELATIVE) 12157c478bd9Sstevel@tonic-gate ofl->ofl_relocrelcnt++; 12167c478bd9Sstevel@tonic-gate 12177c478bd9Sstevel@tonic-gate /* 12187c478bd9Sstevel@tonic-gate * We don't perform sorting on PLT relocations because 12197c478bd9Sstevel@tonic-gate * they have already been assigned a PLT index and if we 12207c478bd9Sstevel@tonic-gate * were to sort them we would have to re-assign the plt indexes. 12217c478bd9Sstevel@tonic-gate */ 12227c478bd9Sstevel@tonic-gate if (!(flags & FLG_REL_PLT)) 12237c478bd9Sstevel@tonic-gate ofl->ofl_reloccnt++; 12247c478bd9Sstevel@tonic-gate 12257c478bd9Sstevel@tonic-gate /* 1226141040e8Srie * Insure a GLOBAL_OFFSET_TABLE is generated if required. 12277c478bd9Sstevel@tonic-gate */ 1228141040e8Srie if (IS_GOT_REQUIRED(orsp->rel_rtype)) 12297c478bd9Sstevel@tonic-gate ofl->ofl_flags |= FLG_OF_BLDGOT; 12307c478bd9Sstevel@tonic-gate 12317c478bd9Sstevel@tonic-gate /* 12327c478bd9Sstevel@tonic-gate * Identify and possibly warn of a displacement relocation. 12337c478bd9Sstevel@tonic-gate */ 12347c478bd9Sstevel@tonic-gate if (orsp->rel_flags & FLG_REL_DISP) { 12357c478bd9Sstevel@tonic-gate ofl->ofl_dtflags_1 |= DF_1_DISPRELPND; 12367c478bd9Sstevel@tonic-gate 12377c478bd9Sstevel@tonic-gate if (ofl->ofl_flags & FLG_OF_VERBOSE) 12385aefb655Srie ld_disp_errmsg(MSG_INTL(MSG_REL_DISPREL4), orsp, ofl); 12397c478bd9Sstevel@tonic-gate } 12405aefb655Srie DBG_CALL(Dbg_reloc_ors_entry(ofl->ofl_lml, ELF_DBG_LD, SHT_REL, 12415aefb655Srie M_MACH, orsp)); 12427c478bd9Sstevel@tonic-gate return (1); 12437c478bd9Sstevel@tonic-gate } 12447c478bd9Sstevel@tonic-gate 12457c478bd9Sstevel@tonic-gate /* 12467c478bd9Sstevel@tonic-gate * process relocation for a LOCAL symbol 12477c478bd9Sstevel@tonic-gate */ 1248ba2be530Sab static uintptr_t 12495aefb655Srie ld_reloc_local(Rel_desc * rsp, Ofl_desc * ofl) 12507c478bd9Sstevel@tonic-gate { 12511d9df23bSab ofl_flag_t flags = ofl->ofl_flags; 12527c478bd9Sstevel@tonic-gate Sym_desc *sdp = rsp->rel_sym; 12530bc07c75Srie Word shndx = sdp->sd_sym->st_shndx; 12547c478bd9Sstevel@tonic-gate 12557c478bd9Sstevel@tonic-gate /* 12567c478bd9Sstevel@tonic-gate * if ((shared object) and (not pc relative relocation) and 12577c478bd9Sstevel@tonic-gate * (not against ABS symbol)) 12587c478bd9Sstevel@tonic-gate * then 12597c478bd9Sstevel@tonic-gate * build R_386_RELATIVE 12607c478bd9Sstevel@tonic-gate * fi 12617c478bd9Sstevel@tonic-gate */ 12627c478bd9Sstevel@tonic-gate if ((flags & FLG_OF_SHAROBJ) && (rsp->rel_flags & FLG_REL_LOAD) && 12632926dd2eSrie !(IS_PC_RELATIVE(rsp->rel_rtype)) && !(IS_SIZE(rsp->rel_rtype)) && 12647c478bd9Sstevel@tonic-gate !(IS_GOT_BASED(rsp->rel_rtype)) && 12657c478bd9Sstevel@tonic-gate !(rsp->rel_isdesc != NULL && 12667c478bd9Sstevel@tonic-gate (rsp->rel_isdesc->is_shdr->sh_type == SHT_SUNW_dof)) && 12677c478bd9Sstevel@tonic-gate (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) || 12687c478bd9Sstevel@tonic-gate (shndx != SHN_ABS) || (sdp->sd_aux && sdp->sd_aux->sa_symspec))) { 12697c478bd9Sstevel@tonic-gate Word ortype = rsp->rel_rtype; 12707c478bd9Sstevel@tonic-gate 12717c478bd9Sstevel@tonic-gate rsp->rel_rtype = R_386_RELATIVE; 12725aefb655Srie if (ld_add_outrel(NULL, rsp, ofl) == S_ERROR) 12737c478bd9Sstevel@tonic-gate return (S_ERROR); 12747c478bd9Sstevel@tonic-gate rsp->rel_rtype = ortype; 12757c478bd9Sstevel@tonic-gate } 12767c478bd9Sstevel@tonic-gate 12777c478bd9Sstevel@tonic-gate /* 12787c478bd9Sstevel@tonic-gate * If the relocation is against a 'non-allocatable' section 12797c478bd9Sstevel@tonic-gate * and we can not resolve it now - then give a warning 12807c478bd9Sstevel@tonic-gate * message. 12817c478bd9Sstevel@tonic-gate * 12827c478bd9Sstevel@tonic-gate * We can not resolve the symbol if either: 12837c478bd9Sstevel@tonic-gate * a) it's undefined 12847c478bd9Sstevel@tonic-gate * b) it's defined in a shared library and a 12857c478bd9Sstevel@tonic-gate * COPY relocation hasn't moved it to the executable 12867c478bd9Sstevel@tonic-gate * 12877c478bd9Sstevel@tonic-gate * Note: because we process all of the relocations against the 12887c478bd9Sstevel@tonic-gate * text segment before any others - we know whether 12897c478bd9Sstevel@tonic-gate * or not a copy relocation will be generated before 12907c478bd9Sstevel@tonic-gate * we get here (see reloc_init()->reloc_segments()). 12917c478bd9Sstevel@tonic-gate */ 12927c478bd9Sstevel@tonic-gate if (!(rsp->rel_flags & FLG_REL_LOAD) && 12937c478bd9Sstevel@tonic-gate ((shndx == SHN_UNDEF) || 12947c478bd9Sstevel@tonic-gate ((sdp->sd_ref == REF_DYN_NEED) && 12957c478bd9Sstevel@tonic-gate ((sdp->sd_flags & FLG_SY_MVTOCOMM) == 0)))) { 1296bf994817SAli Bahrami Conv_inv_buf_t inv_buf; 1297bf994817SAli Bahrami Os_desc *osp = RELAUX_GET_OSDESC(rsp); 1298de777a60Sab 12997c478bd9Sstevel@tonic-gate /* 13007c478bd9Sstevel@tonic-gate * If the relocation is against a SHT_SUNW_ANNOTATE 13017c478bd9Sstevel@tonic-gate * section - then silently ignore that the relocation 13027c478bd9Sstevel@tonic-gate * can not be resolved. 13037c478bd9Sstevel@tonic-gate */ 1304bf994817SAli Bahrami if (osp && (osp->os_shdr->sh_type == SHT_SUNW_ANNOTATE)) 13057c478bd9Sstevel@tonic-gate return (0); 13061007fd6fSAli Bahrami ld_eprintf(ofl, ERR_WARNING, MSG_INTL(MSG_REL_EXTERNSYM), 1307de777a60Sab conv_reloc_386_type(rsp->rel_rtype, 0, &inv_buf), 13087c478bd9Sstevel@tonic-gate rsp->rel_isdesc->is_file->ifl_name, 1309bf994817SAli Bahrami ld_reloc_sym_name(rsp), osp->os_name); 13107c478bd9Sstevel@tonic-gate return (1); 13117c478bd9Sstevel@tonic-gate } 13127c478bd9Sstevel@tonic-gate 13137c478bd9Sstevel@tonic-gate /* 13147c478bd9Sstevel@tonic-gate * Perform relocation. 13157c478bd9Sstevel@tonic-gate */ 13165aefb655Srie return (ld_add_actrel(NULL, rsp, ofl)); 13177c478bd9Sstevel@tonic-gate } 13187c478bd9Sstevel@tonic-gate 1319ba2be530Sab static uintptr_t 13205aefb655Srie ld_reloc_TLS(Boolean local, Rel_desc * rsp, Ofl_desc * ofl) 13217c478bd9Sstevel@tonic-gate { 13227c478bd9Sstevel@tonic-gate Word rtype = rsp->rel_rtype; 13237c478bd9Sstevel@tonic-gate Sym_desc *sdp = rsp->rel_sym; 13241d9df23bSab ofl_flag_t flags = ofl->ofl_flags; 13257c478bd9Sstevel@tonic-gate Gotndx *gnp; 13267c478bd9Sstevel@tonic-gate 13277c478bd9Sstevel@tonic-gate /* 1328d326b23bSrie * If we're building an executable - use either the IE or LE access 1329d326b23bSrie * model. If we're building a shared object process any IE model. 13307c478bd9Sstevel@tonic-gate */ 1331d326b23bSrie if ((flags & FLG_OF_EXEC) || (IS_TLS_IE(rtype))) { 13327c478bd9Sstevel@tonic-gate /* 1333d326b23bSrie * Set the DF_STATIC_TLS flag. 13347c478bd9Sstevel@tonic-gate */ 13357c478bd9Sstevel@tonic-gate ofl->ofl_dtflags |= DF_STATIC_TLS; 13367c478bd9Sstevel@tonic-gate 1337d326b23bSrie if (!local || ((flags & FLG_OF_EXEC) == 0)) { 13387c478bd9Sstevel@tonic-gate /* 1339d326b23bSrie * Assign a GOT entry for static TLS references. 13407c478bd9Sstevel@tonic-gate */ 134157ef7aa9SRod Evans if ((gnp = ld_find_got_ndx(sdp->sd_GOTndxs, 134257ef7aa9SRod Evans GOT_REF_TLSIE, ofl, NULL)) == NULL) { 13437c478bd9Sstevel@tonic-gate 1344d326b23bSrie if (ld_assign_got_TLS(local, rsp, ofl, sdp, 1345d326b23bSrie gnp, GOT_REF_TLSIE, FLG_REL_STLS, 134657ef7aa9SRod Evans rtype, R_386_TLS_TPOFF, NULL) == S_ERROR) 1347d326b23bSrie return (S_ERROR); 1348d326b23bSrie } 13497c478bd9Sstevel@tonic-gate 13507c478bd9Sstevel@tonic-gate /* 1351d326b23bSrie * IE access model. 13527c478bd9Sstevel@tonic-gate */ 1353d326b23bSrie if (IS_TLS_IE(rtype)) { 1354d326b23bSrie if (ld_add_actrel(FLG_REL_STLS, 13557c478bd9Sstevel@tonic-gate rsp, ofl) == S_ERROR) 13567c478bd9Sstevel@tonic-gate return (S_ERROR); 1357d326b23bSrie 1358d326b23bSrie /* 1359d326b23bSrie * A non-pic shared object needs to adjust the 1360d326b23bSrie * active relocation (indntpoff). 1361d326b23bSrie */ 1362d326b23bSrie if (((flags & FLG_OF_EXEC) == 0) && 1363d326b23bSrie (rtype == R_386_TLS_IE)) { 1364d326b23bSrie rsp->rel_rtype = R_386_RELATIVE; 1365d326b23bSrie return (ld_add_outrel(NULL, rsp, ofl)); 1366d326b23bSrie } 1367d326b23bSrie return (1); 13687c478bd9Sstevel@tonic-gate } 13697c478bd9Sstevel@tonic-gate 13707c478bd9Sstevel@tonic-gate /* 1371d326b23bSrie * Fixups are required for other executable models. 13727c478bd9Sstevel@tonic-gate */ 13735aefb655Srie return (ld_add_actrel((FLG_REL_TLSFIX | FLG_REL_STLS), 13747c478bd9Sstevel@tonic-gate rsp, ofl)); 13757c478bd9Sstevel@tonic-gate } 1376d326b23bSrie 13777c478bd9Sstevel@tonic-gate /* 1378d326b23bSrie * LE access model. 13797c478bd9Sstevel@tonic-gate */ 13807c478bd9Sstevel@tonic-gate if (IS_TLS_LE(rtype) || (rtype == R_386_TLS_LDO_32)) 13815aefb655Srie return (ld_add_actrel(FLG_REL_STLS, rsp, ofl)); 13827c478bd9Sstevel@tonic-gate 13835aefb655Srie return (ld_add_actrel((FLG_REL_TLSFIX | FLG_REL_STLS), 13845aefb655Srie rsp, ofl)); 13857c478bd9Sstevel@tonic-gate } 13867c478bd9Sstevel@tonic-gate 13877c478bd9Sstevel@tonic-gate /* 1388d326b23bSrie * Building a shared object. 1389d326b23bSrie * 1390d326b23bSrie * Assign a GOT entry for a dynamic TLS reference. 13917c478bd9Sstevel@tonic-gate */ 139257ef7aa9SRod Evans if (IS_TLS_LD(rtype) && ((gnp = ld_find_got_ndx(sdp->sd_GOTndxs, 139357ef7aa9SRod Evans GOT_REF_TLSLD, ofl, NULL)) == NULL)) { 1394d326b23bSrie 1395d326b23bSrie if (ld_assign_got_TLS(local, rsp, ofl, sdp, gnp, GOT_REF_TLSLD, 139657ef7aa9SRod Evans FLG_REL_MTLS, rtype, R_386_TLS_DTPMOD32, NULL) == S_ERROR) 13977c478bd9Sstevel@tonic-gate return (S_ERROR); 1398d326b23bSrie 139957ef7aa9SRod Evans } else if (IS_TLS_GD(rtype) && ((gnp = ld_find_got_ndx(sdp->sd_GOTndxs, 140057ef7aa9SRod Evans GOT_REF_TLSGD, ofl, NULL)) == NULL)) { 1401d326b23bSrie 1402d326b23bSrie if (ld_assign_got_TLS(local, rsp, ofl, sdp, gnp, GOT_REF_TLSGD, 1403d326b23bSrie FLG_REL_DTLS, rtype, R_386_TLS_DTPMOD32, 1404d326b23bSrie R_386_TLS_DTPOFF32) == S_ERROR) 14057c478bd9Sstevel@tonic-gate return (S_ERROR); 14067c478bd9Sstevel@tonic-gate } 1407d326b23bSrie 14087c478bd9Sstevel@tonic-gate /* 14097c478bd9Sstevel@tonic-gate * For GD/LD TLS reference - TLS_{GD,LD}_CALL, this will eventually 1410d326b23bSrie * cause a call to __tls_get_addr(). Convert this relocation to that 1411d326b23bSrie * symbol now, and prepare for the PLT magic. 14127c478bd9Sstevel@tonic-gate */ 14137c478bd9Sstevel@tonic-gate if ((rtype == R_386_TLS_GD_PLT) || (rtype == R_386_TLS_LDM_PLT)) { 1414f5a18a30Srie Sym_desc *tlsgetsym; 14157c478bd9Sstevel@tonic-gate 14165aefb655Srie if ((tlsgetsym = ld_sym_add_u(MSG_ORIG(MSG_SYM_TLSGETADDR_UU), 1417f5a18a30Srie ofl, MSG_STR_TLSREL)) == (Sym_desc *)S_ERROR) 14187c478bd9Sstevel@tonic-gate return (S_ERROR); 1419d326b23bSrie 14207c478bd9Sstevel@tonic-gate rsp->rel_sym = tlsgetsym; 14217c478bd9Sstevel@tonic-gate rsp->rel_rtype = R_386_PLT32; 1422d326b23bSrie 14235aefb655Srie if (ld_reloc_plt(rsp, ofl) == S_ERROR) 14247c478bd9Sstevel@tonic-gate return (S_ERROR); 1425d326b23bSrie 14267c478bd9Sstevel@tonic-gate rsp->rel_sym = sdp; 14277c478bd9Sstevel@tonic-gate rsp->rel_rtype = rtype; 14287c478bd9Sstevel@tonic-gate return (1); 14297c478bd9Sstevel@tonic-gate } 14307c478bd9Sstevel@tonic-gate 14317c478bd9Sstevel@tonic-gate if (IS_TLS_LD(rtype)) 14325aefb655Srie return (ld_add_actrel(FLG_REL_MTLS, rsp, ofl)); 14337c478bd9Sstevel@tonic-gate 14345aefb655Srie return (ld_add_actrel(FLG_REL_DTLS, rsp, ofl)); 14357c478bd9Sstevel@tonic-gate } 14367c478bd9Sstevel@tonic-gate 14377c478bd9Sstevel@tonic-gate /* ARGSUSED4 */ 1438ba2be530Sab static uintptr_t 143957ef7aa9SRod Evans ld_assign_got_ndx(Alist **alpp, Gotndx *pgnp, Gotref gref, Ofl_desc *ofl, 144057ef7aa9SRod Evans Rel_desc *rsp, Sym_desc *sdp) 14417c478bd9Sstevel@tonic-gate { 144257ef7aa9SRod Evans Gotndx gn, *gnp; 14437c478bd9Sstevel@tonic-gate uint_t gotents; 14447c478bd9Sstevel@tonic-gate 14457c478bd9Sstevel@tonic-gate if (pgnp) 14467c478bd9Sstevel@tonic-gate return (1); 14477c478bd9Sstevel@tonic-gate 14487c478bd9Sstevel@tonic-gate if ((gref == GOT_REF_TLSGD) || (gref == GOT_REF_TLSLD)) 14497c478bd9Sstevel@tonic-gate gotents = 2; 14507c478bd9Sstevel@tonic-gate else 14517c478bd9Sstevel@tonic-gate gotents = 1; 14527c478bd9Sstevel@tonic-gate 145357ef7aa9SRod Evans gn.gn_addend = 0; 145457ef7aa9SRod Evans gn.gn_gotndx = ofl->ofl_gotcnt; 145557ef7aa9SRod Evans gn.gn_gotref = gref; 14567c478bd9Sstevel@tonic-gate 14577c478bd9Sstevel@tonic-gate ofl->ofl_gotcnt += gotents; 14587c478bd9Sstevel@tonic-gate 14597c478bd9Sstevel@tonic-gate if (gref == GOT_REF_TLSLD) { 146057ef7aa9SRod Evans if (ofl->ofl_tlsldgotndx == NULL) { 146157ef7aa9SRod Evans if ((gnp = libld_malloc(sizeof (Gotndx))) == NULL) 146257ef7aa9SRod Evans return (S_ERROR); 146357ef7aa9SRod Evans (void) memcpy(gnp, &gn, sizeof (Gotndx)); 146457ef7aa9SRod Evans ofl->ofl_tlsldgotndx = gnp; 146557ef7aa9SRod Evans } 14667c478bd9Sstevel@tonic-gate return (1); 14677c478bd9Sstevel@tonic-gate } 14687c478bd9Sstevel@tonic-gate 146957ef7aa9SRod Evans /* 147057ef7aa9SRod Evans * GOT indexes are maintained on an Alist, where there is typically 147157ef7aa9SRod Evans * only one index. The usage of this list is to scan the list to find 147257ef7aa9SRod Evans * an index, and then apply that index immediately to a relocation. 147357ef7aa9SRod Evans * Thus there are no external references to these GOT index structures 147457ef7aa9SRod Evans * that can be compromised by the Alist being reallocated. 147557ef7aa9SRod Evans */ 147657ef7aa9SRod Evans if (alist_append(alpp, &gn, sizeof (Gotndx), AL_CNT_SDP_GOT) == NULL) 14777c478bd9Sstevel@tonic-gate return (S_ERROR); 14787c478bd9Sstevel@tonic-gate 14797c478bd9Sstevel@tonic-gate return (1); 14807c478bd9Sstevel@tonic-gate } 14817c478bd9Sstevel@tonic-gate 1482ba2be530Sab static void 14835aefb655Srie ld_assign_plt_ndx(Sym_desc * sdp, Ofl_desc *ofl) 14847c478bd9Sstevel@tonic-gate { 14857c478bd9Sstevel@tonic-gate sdp->sd_aux->sa_PLTndx = 1 + ofl->ofl_pltcnt++; 14867c478bd9Sstevel@tonic-gate sdp->sd_aux->sa_PLTGOTndx = ofl->ofl_gotcnt++; 1487141040e8Srie ofl->ofl_flags |= FLG_OF_BLDGOT; 14887c478bd9Sstevel@tonic-gate } 14897c478bd9Sstevel@tonic-gate 14907c478bd9Sstevel@tonic-gate /* 14917c478bd9Sstevel@tonic-gate * Initializes .got[0] with the _DYNAMIC symbol value. 14927c478bd9Sstevel@tonic-gate */ 1493ba2be530Sab static uintptr_t 1494d326b23bSrie ld_fillin_gotplt(Ofl_desc *ofl) 14957c478bd9Sstevel@tonic-gate { 14961d9df23bSab ofl_flag_t flags = ofl->ofl_flags; 14971d9df23bSab int bswap = (ofl->ofl_flags1 & FLG_OF1_ENCDIFF) != 0; 1498d326b23bSrie 14997c478bd9Sstevel@tonic-gate if (ofl->ofl_osgot) { 1500d326b23bSrie Sym_desc *sdp; 15017c478bd9Sstevel@tonic-gate 15025aefb655Srie if ((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_DYNAMIC_U), 1503635216b6SRod Evans SYM_NOHASH, NULL, ofl)) != NULL) { 1504d326b23bSrie uchar_t *genptr; 1505d326b23bSrie 1506d326b23bSrie genptr = ((uchar_t *)ofl->ofl_osgot->os_outdata->d_buf + 15077c478bd9Sstevel@tonic-gate (M_GOT_XDYNAMIC * M_GOT_ENTSIZE)); 15087c478bd9Sstevel@tonic-gate /* LINTED */ 15097c478bd9Sstevel@tonic-gate *(Word *)genptr = (Word)sdp->sd_sym->st_value; 1510ba2be530Sab if (bswap) 1511ba2be530Sab /* LINTED */ 1512ba2be530Sab *(Word *)genptr = 1513ba2be530Sab /* LINTED */ 1514ba2be530Sab ld_bswap_Word(*(Word *)genptr); 15157c478bd9Sstevel@tonic-gate } 15167c478bd9Sstevel@tonic-gate } 15177c478bd9Sstevel@tonic-gate 15187c478bd9Sstevel@tonic-gate /* 15197c478bd9Sstevel@tonic-gate * Fill in the reserved slot in the procedure linkage table the first 15207c478bd9Sstevel@tonic-gate * entry is: 15217c478bd9Sstevel@tonic-gate * if (building a.out) { 15227c478bd9Sstevel@tonic-gate * PUSHL got[1] # the address of the link map entry 15237c478bd9Sstevel@tonic-gate * JMP * got[2] # the address of rtbinder 15247c478bd9Sstevel@tonic-gate * } else { 15257c478bd9Sstevel@tonic-gate * PUSHL got[1]@GOT(%ebx) # the address of the link map entry 15267c478bd9Sstevel@tonic-gate * JMP * got[2]@GOT(%ebx) # the address of rtbinder 15277c478bd9Sstevel@tonic-gate * } 15287c478bd9Sstevel@tonic-gate */ 1529d326b23bSrie if ((flags & FLG_OF_DYNAMIC) && ofl->ofl_osplt) { 1530b3fbe5e6Sseizo uchar_t *pltent; 15317c478bd9Sstevel@tonic-gate 1532b3fbe5e6Sseizo pltent = (uchar_t *)ofl->ofl_osplt->os_outdata->d_buf; 1533d326b23bSrie if (!(flags & FLG_OF_SHAROBJ)) { 15347c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 15357c478bd9Sstevel@tonic-gate pltent[1] = M_PUSHL_DISP; 15367c478bd9Sstevel@tonic-gate pltent += 2; 15377c478bd9Sstevel@tonic-gate /* LINTED */ 15387c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)(ofl->ofl_osgot->os_shdr-> 1539de777a60Sab sh_addr + M_GOT_XLINKMAP * M_GOT_ENTSIZE); 1540ba2be530Sab if (bswap) 1541ba2be530Sab /* LINTED */ 1542ba2be530Sab *(Word *)pltent = 1543ba2be530Sab /* LINTED */ 1544ba2be530Sab ld_bswap_Word(*(Word *)pltent); 15457c478bd9Sstevel@tonic-gate pltent += 4; 15467c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 15477c478bd9Sstevel@tonic-gate pltent[1] = M_JMP_DISP_IND; 15487c478bd9Sstevel@tonic-gate pltent += 2; 15497c478bd9Sstevel@tonic-gate /* LINTED */ 15507c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)(ofl->ofl_osgot->os_shdr-> 1551de777a60Sab sh_addr + M_GOT_XRTLD * M_GOT_ENTSIZE); 1552ba2be530Sab if (bswap) 1553ba2be530Sab /* LINTED */ 1554ba2be530Sab *(Word *)pltent = 1555ba2be530Sab /* LINTED */ 1556ba2be530Sab ld_bswap_Word(*(Word *)pltent); 15577c478bd9Sstevel@tonic-gate } else { 15587c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 15597c478bd9Sstevel@tonic-gate pltent[1] = M_PUSHL_REG_DISP; 15607c478bd9Sstevel@tonic-gate pltent += 2; 15617c478bd9Sstevel@tonic-gate /* LINTED */ 15627c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)(M_GOT_XLINKMAP * 1563de777a60Sab M_GOT_ENTSIZE); 1564ba2be530Sab if (bswap) 1565ba2be530Sab /* LINTED */ 1566ba2be530Sab *(Word *)pltent = 1567ba2be530Sab /* LINTED */ 1568ba2be530Sab ld_bswap_Word(*(Word *)pltent); 15697c478bd9Sstevel@tonic-gate pltent += 4; 15707c478bd9Sstevel@tonic-gate pltent[0] = M_SPECIAL_INST; 15717c478bd9Sstevel@tonic-gate pltent[1] = M_JMP_REG_DISP_IND; 15727c478bd9Sstevel@tonic-gate pltent += 2; 15737c478bd9Sstevel@tonic-gate /* LINTED */ 15747c478bd9Sstevel@tonic-gate *(Word *)pltent = (Word)(M_GOT_XRTLD * 1575de777a60Sab M_GOT_ENTSIZE); 1576ba2be530Sab if (bswap) 1577ba2be530Sab /* LINTED */ 1578ba2be530Sab *(Word *)pltent = 1579ba2be530Sab /* LINTED */ 1580ba2be530Sab ld_bswap_Word(*(Word *)pltent); 15817c478bd9Sstevel@tonic-gate } 15827c478bd9Sstevel@tonic-gate } 15837c478bd9Sstevel@tonic-gate return (1); 15847c478bd9Sstevel@tonic-gate } 1585ba2be530Sab 1586ba2be530Sab 1587ba2be530Sab 1588ba2be530Sab /* 1589ba2be530Sab * Template for generating "void (*)(void)" function 1590ba2be530Sab */ 1591ba2be530Sab static const uchar_t nullfunc_tmpl[] = { /* IA32 */ 1592ba2be530Sab /* 0x00 */ 0xc3 /* ret */ 1593ba2be530Sab }; 1594ba2be530Sab 1595ba2be530Sab 1596ba2be530Sab 15973c573fccSAli Bahrami /* 15983c573fccSAli Bahrami * Function used to provide fill padding in SHF_EXECINSTR sections 15993c573fccSAli Bahrami * 16003c573fccSAli Bahrami * entry: 16013c573fccSAli Bahrami * 16023c573fccSAli Bahrami * base - base address of section being filled 16033c573fccSAli Bahrami * offset - starting offset for fill within memory referenced by base 16043c573fccSAli Bahrami * cnt - # bytes to be filled 16053c573fccSAli Bahrami * 16063c573fccSAli Bahrami * exit: 16073c573fccSAli Bahrami * The fill has been completed. 16083c573fccSAli Bahrami */ 16093c573fccSAli Bahrami static void 16103c573fccSAli Bahrami execfill(void *base, off_t off, size_t cnt) 16113c573fccSAli Bahrami { 16123c573fccSAli Bahrami /* 16133c573fccSAli Bahrami * 0x90 is an X86 NOP instruction in both 32 and 64-bit worlds. 16143c573fccSAli Bahrami * There are no alignment constraints. 16153c573fccSAli Bahrami */ 16163c573fccSAli Bahrami (void) memset(off + (char *)base, 0x90, cnt); 16173c573fccSAli Bahrami } 16183c573fccSAli Bahrami 16193c573fccSAli Bahrami 1620ba2be530Sab /* 1621ba2be530Sab * Return the ld_targ definition for this target. 1622ba2be530Sab */ 1623ba2be530Sab const Target * 1624ba2be530Sab ld_targ_init_x86(void) 1625ba2be530Sab { 1626ba2be530Sab static const Target _ld_targ = { 1627ba2be530Sab { /* Target_mach */ 1628ba2be530Sab M_MACH, /* m_mach */ 1629ba2be530Sab M_MACHPLUS, /* m_machplus */ 1630ba2be530Sab M_FLAGSPLUS, /* m_flagsplus */ 1631ba2be530Sab M_CLASS, /* m_class */ 1632ba2be530Sab M_DATA, /* m_data */ 1633ba2be530Sab 1634ba2be530Sab M_SEGM_ALIGN, /* m_segm_align */ 1635ba2be530Sab M_SEGM_ORIGIN, /* m_segm_origin */ 1636bb3b4f6cSRod Evans M_SEGM_AORIGIN, /* m_segm_aorigin */ 1637ba2be530Sab M_DATASEG_PERM, /* m_dataseg_perm */ 163869112eddSAli Bahrami M_STACK_PERM, /* m_stack_perm */ 1639ba2be530Sab M_WORD_ALIGN, /* m_word_align */ 1640ba2be530Sab MSG_ORIG(MSG_PTH_RTLD), /* m_def_interp */ 1641ba2be530Sab 1642ba2be530Sab /* Relocation type codes */ 1643ba2be530Sab M_R_ARRAYADDR, /* m_r_arrayaddr */ 1644ba2be530Sab M_R_COPY, /* m_r_copy */ 1645ba2be530Sab M_R_GLOB_DAT, /* m_r_glob_dat */ 1646ba2be530Sab M_R_JMP_SLOT, /* m_r_jmp_slot */ 1647ba2be530Sab M_R_NUM, /* m_r_num */ 1648ba2be530Sab M_R_NONE, /* m_r_none */ 1649ba2be530Sab M_R_RELATIVE, /* m_r_relative */ 1650ba2be530Sab M_R_REGISTER, /* m_r_register */ 1651ba2be530Sab 1652ba2be530Sab /* Relocation related constants */ 1653ba2be530Sab M_REL_DT_COUNT, /* m_rel_dt_count */ 1654ba2be530Sab M_REL_DT_ENT, /* m_rel_dt_ent */ 1655ba2be530Sab M_REL_DT_SIZE, /* m_rel_dt_size */ 1656ba2be530Sab M_REL_DT_TYPE, /* m_rel_dt_type */ 1657ba2be530Sab M_REL_SHT_TYPE, /* m_rel_sht_type */ 1658ba2be530Sab 1659ba2be530Sab /* GOT related constants */ 1660ba2be530Sab M_GOT_ENTSIZE, /* m_got_entsize */ 1661ba2be530Sab M_GOT_XNumber, /* m_got_xnumber */ 1662ba2be530Sab 1663ba2be530Sab /* PLT related constants */ 1664ba2be530Sab M_PLT_ALIGN, /* m_plt_align */ 1665ba2be530Sab M_PLT_ENTSIZE, /* m_plt_entsize */ 1666ba2be530Sab M_PLT_RESERVSZ, /* m_plt_reservsz */ 1667ba2be530Sab M_PLT_SHF_FLAGS, /* m_plt_shf_flags */ 1668ba2be530Sab 16697e16fca0SAli Bahrami /* Section type of .eh_frame/.eh_frame_hdr sections */ 16707e16fca0SAli Bahrami SHT_PROGBITS, /* m_sht_unwind */ 16717e16fca0SAli Bahrami 1672ba2be530Sab M_DT_REGISTER, /* m_dt_register */ 1673ba2be530Sab }, 1674ba2be530Sab { /* Target_machid */ 1675ba2be530Sab M_ID_ARRAY, /* id_array */ 1676ba2be530Sab M_ID_BSS, /* id_bss */ 1677ba2be530Sab M_ID_CAP, /* id_cap */ 167808278a5eSRod Evans M_ID_CAPINFO, /* id_capinfo */ 167908278a5eSRod Evans M_ID_CAPCHAIN, /* id_capchain */ 1680ba2be530Sab M_ID_DATA, /* id_data */ 1681ba2be530Sab M_ID_DYNAMIC, /* id_dynamic */ 1682ba2be530Sab M_ID_DYNSORT, /* id_dynsort */ 1683ba2be530Sab M_ID_DYNSTR, /* id_dynstr */ 1684ba2be530Sab M_ID_DYNSYM, /* id_dynsym */ 1685ba2be530Sab M_ID_DYNSYM_NDX, /* id_dynsym_ndx */ 1686ba2be530Sab M_ID_GOT, /* id_got */ 1687ba2be530Sab M_ID_UNKNOWN, /* id_gotdata (unused) */ 1688ba2be530Sab M_ID_HASH, /* id_hash */ 1689ba2be530Sab M_ID_INTERP, /* id_interp */ 1690ba2be530Sab M_ID_LBSS, /* id_lbss */ 1691ba2be530Sab M_ID_LDYNSYM, /* id_ldynsym */ 1692ba2be530Sab M_ID_NOTE, /* id_note */ 1693ba2be530Sab M_ID_NULL, /* id_null */ 1694ba2be530Sab M_ID_PLT, /* id_plt */ 1695ba2be530Sab M_ID_REL, /* id_rel */ 1696ba2be530Sab M_ID_STRTAB, /* id_strtab */ 1697ba2be530Sab M_ID_SYMINFO, /* id_syminfo */ 1698ba2be530Sab M_ID_SYMTAB, /* id_symtab */ 1699ba2be530Sab M_ID_SYMTAB_NDX, /* id_symtab_ndx */ 1700ba2be530Sab M_ID_TEXT, /* id_text */ 1701ba2be530Sab M_ID_TLS, /* id_tls */ 1702ba2be530Sab M_ID_TLSBSS, /* id_tlsbss */ 1703ba2be530Sab M_ID_UNKNOWN, /* id_unknown */ 1704ba2be530Sab M_ID_UNWIND, /* id_unwind */ 17057e16fca0SAli Bahrami M_ID_UNWINDHDR, /* id_unwindhdr */ 1706ba2be530Sab M_ID_USER, /* id_user */ 1707ba2be530Sab M_ID_VERSION, /* id_version */ 1708ba2be530Sab }, 1709ba2be530Sab { /* Target_nullfunc */ 1710ba2be530Sab nullfunc_tmpl, /* nf_template */ 1711ba2be530Sab sizeof (nullfunc_tmpl), /* nf_size */ 1712ba2be530Sab }, 17133c573fccSAli Bahrami { /* Target_fillfunc */ 17143c573fccSAli Bahrami execfill /* ff_execfill */ 17153c573fccSAli Bahrami }, 1716ba2be530Sab { /* Target_machrel */ 1717ba2be530Sab reloc_table, 1718ba2be530Sab 1719ba2be530Sab ld_init_rel, /* mr_init_rel */ 1720ba2be530Sab ld_mach_eflags, /* mr_mach_eflags */ 1721ba2be530Sab ld_mach_make_dynamic, /* mr_mach_make_dynamic */ 1722ba2be530Sab ld_mach_update_odynamic, /* mr_mach_update_odynamic */ 1723ba2be530Sab ld_calc_plt_addr, /* mr_calc_plt_addr */ 1724ba2be530Sab ld_perform_outreloc, /* mr_perform_outreloc */ 1725ba2be530Sab ld_do_activerelocs, /* mr_do_activerelocs */ 1726ba2be530Sab ld_add_outrel, /* mr_add_outrel */ 1727ba2be530Sab NULL, /* mr_reloc_register */ 1728ba2be530Sab ld_reloc_local, /* mr_reloc_local */ 1729ba2be530Sab NULL, /* mr_reloc_GOTOP */ 1730ba2be530Sab ld_reloc_TLS, /* mr_reloc_TLS */ 1731ba2be530Sab NULL, /* mr_assign_got */ 173257ef7aa9SRod Evans ld_find_got_ndx, /* mr_find_got_ndx */ 1733ba2be530Sab ld_calc_got_offset, /* mr_calc_got_offset */ 1734ba2be530Sab ld_assign_got_ndx, /* mr_assign_got_ndx */ 1735ba2be530Sab ld_assign_plt_ndx, /* mr_assign_plt_ndx */ 1736ba2be530Sab NULL, /* mr_allocate_got */ 1737ba2be530Sab ld_fillin_gotplt, /* mr_fillin_gotplt */ 1738ba2be530Sab }, 1739ba2be530Sab { /* Target_machsym */ 1740ba2be530Sab NULL, /* ms_reg_check */ 1741ba2be530Sab NULL, /* ms_mach_sym_typecheck */ 1742ba2be530Sab NULL, /* ms_is_regsym */ 1743ba2be530Sab NULL, /* ms_reg_find */ 1744ba2be530Sab NULL /* ms_reg_enter */ 1745ba2be530Sab } 1746ba2be530Sab }; 1747ba2be530Sab 1748ba2be530Sab return (&_ld_targ); 1749ba2be530Sab } 1750