update.c revision 11827:d7ef53deac3f
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 *	Copyright (c) 1988 AT&T
24 *	  All Rights Reserved
25 *
26 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
27 * Use is subject to license terms.
28 */
29
30/*
31 * Update the new output file image, perform virtual address, offset and
32 * displacement calculations on the program headers and sections headers,
33 * and generate any new output section information.
34 */
35
36#define	ELF_TARGET_AMD64
37
38#include	<stdio.h>
39#include	<string.h>
40#include	<unistd.h>
41#include	<debug.h>
42#include	"msg.h"
43#include	"_libld.h"
44
45/*
46 * Comparison routine used by qsort() for sorting of the global symbol list
47 * based off of the hashbuckets the symbol will eventually be deposited in.
48 */
49static int
50sym_hash_compare(Sym_s_list * s1, Sym_s_list * s2)
51{
52	return (s1->sl_hval - s2->sl_hval);
53}
54
55/*
56 * Comparison routine used by qsort() for sorting of dyn[sym|tls]sort section
57 * indices based on the address of the symbols they reference. The
58 * use of the global dynsort_compare_syms variable is needed because
59 * we need to examine the symbols the indices reference. It is safe, because
60 * the linker is single threaded.
61 */
62Sym *dynsort_compare_syms;
63
64static int
65dynsort_compare(const void *idx1, const void *idx2)
66{
67	Sym *s1 = dynsort_compare_syms + *((const Word *) idx1);
68	Sym *s2 = dynsort_compare_syms + *((const Word *) idx2);
69
70	/*
71	 * Note: the logical computation for this is
72	 *	(st_value1 - st_value2)
73	 * However, that is only correct if the address type is smaller
74	 * than a pointer. Writing it this way makes it immune to the
75	 * class (32 or 64-bit) of the linker.
76	 */
77	return ((s1->st_value < s2->st_value) ? -1 :
78	    (s1->st_value > s2->st_value));
79}
80
81/*
82 * Scan the sorted symbols, and issue warnings if there are any duplicate
83 * values in the list. We only do this if -zverbose is set, or we are
84 * running with LD_DEBUG defined
85 *
86 * entry:
87 *	ofl - Output file descriptor
88 *	ldynsym - Pointer to start of .SUNW_ldynsym section that the
89 *		sort section indexes reference.
90 *	symsort - Pointer to start of .SUNW_dynsymsort or .SUNW_dyntlssort
91 *		section.
92 *	n - # of indices in symsort array
93 *	secname - Name of the symsort section.
94 *
95 * exit:
96 *	If the symsort section contains indexes to more than one
97 *	symbol with the same address value, a warning is issued.
98 */
99static void
100dynsort_dupwarn(Ofl_desc *ofl, Sym *ldynsym, const char *str,
101    Word *symsort, Word n, const char *secname)
102{
103	int zverbose = (ofl->ofl_flags & FLG_OF_VERBOSE) != 0;
104	Word ndx, cmp_ndx;
105	Addr addr, cmp_addr;
106
107	/* Nothing to do if -zverbose or LD_DEBUG are not active */
108	if (!(zverbose || DBG_ENABLED))
109		return;
110
111	cmp_ndx = 0;
112	cmp_addr = ldynsym[symsort[cmp_ndx]].st_value;
113	for (ndx = 1; ndx < n; ndx++) {
114		addr = ldynsym[symsort[ndx]].st_value;
115		if (cmp_addr == addr) {
116			if (zverbose)
117				eprintf(ofl->ofl_lml, ERR_WARNING,
118				    MSG_INTL(MSG_SYM_DUPSORTADDR), secname,
119				    str + ldynsym[symsort[cmp_ndx]].st_name,
120				    str + ldynsym[symsort[ndx]].st_name,
121				    EC_ADDR(addr));
122			DBG_CALL(Dbg_syms_dup_sort_addr(ofl->ofl_lml, secname,
123			    str + ldynsym[symsort[cmp_ndx]].st_name,
124			    str + ldynsym[symsort[ndx]].st_name,
125			    EC_ADDR(addr)));
126		} else {	/* Not a dup. Move reference up */
127			cmp_ndx = ndx;
128			cmp_addr = addr;
129		}
130	}
131}
132
133/*
134 * Build and update any output symbol tables.  Here we work on all the symbol
135 * tables at once to reduce the duplication of symbol and string manipulation.
136 * Symbols and their associated strings are copied from the read-only input
137 * file images to the output image and their values and index's updated in the
138 * output image.
139 */
140static Addr
141update_osym(Ofl_desc *ofl)
142{
143	/*
144	 * There are several places in this function where we wish
145	 * to insert a symbol index to the combined .SUNW_ldynsym/.dynsym
146	 * symbol table into one of the two sort sections (.SUNW_dynsymsort
147	 * or .SUNW_dyntlssort), if that symbol has the right attributes.
148	 * This macro is used to generate the necessary code from a single
149	 * specification.
150	 *
151	 * entry:
152	 *	_sdp, _sym, _type - As per DYNSORT_COUNT. See _libld.h
153	 *	_sym_ndx - Index that _sym will have in the combined
154	 *		.SUNW_ldynsym/.dynsym symbol table.
155	 */
156#define	ADD_TO_DYNSORT(_sdp, _sym, _type, _sym_ndx) \
157	{ \
158		Word *_dynsort_arr, *_dynsort_ndx; \
159		\
160		if (dynsymsort_symtype[_type]) { \
161			_dynsort_arr = dynsymsort; \
162			_dynsort_ndx = &dynsymsort_ndx; \
163		} else if (_type == STT_TLS) { \
164			_dynsort_arr = dyntlssort; \
165			_dynsort_ndx = &dyntlssort_ndx; \
166		} else { \
167			_dynsort_arr = NULL; \
168		} \
169		if ((_dynsort_arr != NULL) && DYNSORT_TEST_ATTR(_sdp, _sym)) \
170		    _dynsort_arr[(*_dynsort_ndx)++] = _sym_ndx; \
171	}
172
173	Sym_desc	*sdp;
174	Sym_avlnode	*sav;
175	Sg_desc		*sgp, *tsgp = NULL, *dsgp = NULL, *esgp = NULL;
176	Os_desc		*osp, *iosp = NULL, *fosp = NULL;
177	Is_desc		*isc;
178	Ifl_desc	*ifl;
179	Word		bssndx, etext_ndx, edata_ndx = 0, end_ndx, start_ndx;
180	Word		end_abs = 0, etext_abs = 0, edata_abs;
181	Word		tlsbssndx = 0, parexpnndx;
182#if	defined(_ELF64)
183	Word		lbssndx = 0;
184	Addr		lbssaddr = 0;
185#endif
186	Addr		bssaddr, etext = 0, edata = 0, end = 0, start = 0;
187	Addr		tlsbssaddr = 0;
188	Addr 		parexpnbase, parexpnaddr;
189	int		start_set = 0;
190	Sym		_sym = {0}, *sym, *symtab = NULL;
191	Sym		*dynsym = NULL, *ldynsym = NULL;
192	Word		symtab_ndx = 0;		/* index into .symtab */
193	Word		symtab_gbl_bndx;	/* .symtab ndx 1st global */
194	Word		ldynsym_ndx = 0;	/* index into .SUNW_ldynsym */
195	Word		dynsym_ndx = 0;		/* index into .dynsym */
196	Word		scopesym_ndx = 0;	/* index into scoped symbols */
197	Word		scopesym_bndx = 0;	/* .symtab ndx 1st scoped sym */
198	Word		ldynscopesym_ndx = 0;	/* index to ldynsym scoped */
199						/*	symbols */
200	Word		*dynsymsort = NULL;	/* SUNW_dynsymsort index */
201						/*	vector */
202	Word		*dyntlssort = NULL;	/* SUNW_dyntlssort index */
203						/*	vector */
204	Word		dynsymsort_ndx;		/* index dynsymsort array */
205	Word		dyntlssort_ndx;		/* index dyntlssort array */
206	Word		*symndx;		/* symbol index (for */
207						/*	relocation use) */
208	Word		*symshndx = NULL;	/* .symtab_shndx table */
209	Word		*dynshndx = NULL;	/* .dynsym_shndx table */
210	Word		*ldynshndx = NULL;	/* .SUNW_ldynsym_shndx table */
211	Word		ldynsym_cnt = NULL;	/* number of items in */
212						/*	.SUNW_ldynsym */
213	Str_tbl		*shstrtab;
214	Str_tbl		*strtab;
215	Str_tbl		*dynstr;
216	Word		*hashtab;	/* hash table pointer */
217	Word		*hashbkt;	/* hash table bucket pointer */
218	Word		*hashchain;	/* hash table chain pointer */
219	Wk_desc		*wkp;
220	Alist		*weak = NULL;
221	ofl_flag_t	flags = ofl->ofl_flags;
222	Versym		*versym;
223	Gottable	*gottable;	/* used for display got debugging */
224					/*	information */
225	Syminfo		*syminfo;
226	Sym_s_list	*sorted_syms;	/* table to hold sorted symbols */
227	Word		ssndx;		/* global index into sorted_syms */
228	Word		scndx;		/* scoped index into sorted_syms */
229	size_t		stoff;		/* string offset */
230	Aliste		idx1;
231
232	/*
233	 * Initialize pointers to the symbol table entries and the symbol
234	 * table strings.  Skip the first symbol entry and the first string
235	 * table byte.  Note that if we are not generating any output symbol
236	 * tables we must still generate and update internal copies so
237	 * that the relocation phase has the correct information.
238	 */
239	if (!(flags & FLG_OF_STRIP) || (flags & FLG_OF_RELOBJ) ||
240	    ((flags & FLG_OF_STATIC) && ofl->ofl_osversym)) {
241		symtab = (Sym *)ofl->ofl_ossymtab->os_outdata->d_buf;
242		symtab[symtab_ndx++] = _sym;
243		if (ofl->ofl_ossymshndx)
244			symshndx =
245			    (Word *)ofl->ofl_ossymshndx->os_outdata->d_buf;
246	}
247	if (OFL_ALLOW_DYNSYM(ofl)) {
248		dynsym = (Sym *)ofl->ofl_osdynsym->os_outdata->d_buf;
249		dynsym[dynsym_ndx++] = _sym;
250		/*
251		 * If we are also constructing a .SUNW_ldynsym section
252		 * to contain local function symbols, then set it up too.
253		 */
254		if (ofl->ofl_osldynsym) {
255			ldynsym = (Sym *)ofl->ofl_osldynsym->os_outdata->d_buf;
256			ldynsym[ldynsym_ndx++] = _sym;
257			ldynsym_cnt = 1 + ofl->ofl_dynlocscnt +
258			    ofl->ofl_dynscopecnt;
259
260			/*
261			 * If there is a SUNW_ldynsym, then there may also
262			 * be a .SUNW_dynsymsort and/or .SUNW_dyntlssort
263			 * sections, used to collect indices of function
264			 * and data symbols sorted by address order.
265			 */
266			if (ofl->ofl_osdynsymsort) {	/* .SUNW_dynsymsort */
267				dynsymsort = (Word *)
268				    ofl->ofl_osdynsymsort->os_outdata->d_buf;
269				dynsymsort_ndx = 0;
270			}
271			if (ofl->ofl_osdyntlssort) {	/* .SUNW_dyntlssort */
272				dyntlssort = (Word *)
273				    ofl->ofl_osdyntlssort->os_outdata->d_buf;
274				dyntlssort_ndx = 0;
275			}
276		}
277
278		/*
279		 * Initialize the hash table.
280		 */
281		hashtab = (Word *)(ofl->ofl_oshash->os_outdata->d_buf);
282		hashbkt = &hashtab[2];
283		hashchain = &hashtab[2 + ofl->ofl_hashbkts];
284		hashtab[0] = ofl->ofl_hashbkts;
285		hashtab[1] = DYNSYM_ALL_CNT(ofl);
286		if (ofl->ofl_osdynshndx)
287			dynshndx =
288			    (Word *)ofl->ofl_osdynshndx->os_outdata->d_buf;
289		if (ofl->ofl_osldynshndx)
290			ldynshndx =
291			    (Word *)ofl->ofl_osldynshndx->os_outdata->d_buf;
292	}
293
294	/*
295	 * symndx is the symbol index to be used for relocation processing.  It
296	 * points to the relevant symtab's (.dynsym or .symtab) symbol ndx.
297	 */
298	if (dynsym)
299		symndx = &dynsym_ndx;
300	else
301		symndx = &symtab_ndx;
302
303	/*
304	 * If we have version definitions initialize the version symbol index
305	 * table.  There is one entry for each symbol which contains the symbols
306	 * version index.
307	 */
308	if (!(flags & FLG_OF_NOVERSEC) &&
309	    (flags & (FLG_OF_VERNEED | FLG_OF_VERDEF))) {
310		versym = (Versym *)ofl->ofl_osversym->os_outdata->d_buf;
311		versym[0] = NULL;
312	} else
313		versym = NULL;
314
315	/*
316	 * If syminfo section exists be prepared to fill it in.
317	 */
318	if (ofl->ofl_ossyminfo) {
319		syminfo = ofl->ofl_ossyminfo->os_outdata->d_buf;
320		syminfo[0].si_flags = SYMINFO_CURRENT;
321	} else
322		syminfo = NULL;
323
324	/*
325	 * Setup our string tables.
326	 */
327	shstrtab = ofl->ofl_shdrsttab;
328	strtab = ofl->ofl_strtab;
329	dynstr = ofl->ofl_dynstrtab;
330
331	DBG_CALL(Dbg_syms_sec_title(ofl->ofl_lml));
332
333	/*
334	 * Put output file name to the first .symtab and .SUNW_ldynsym symbol.
335	 */
336	if (symtab) {
337		(void) st_setstring(strtab, ofl->ofl_name, &stoff);
338		sym = &symtab[symtab_ndx++];
339		/* LINTED */
340		sym->st_name = stoff;
341		sym->st_value = 0;
342		sym->st_size = 0;
343		sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_FILE);
344		sym->st_other = 0;
345		sym->st_shndx = SHN_ABS;
346
347		if (versym && !dynsym)
348			versym[1] = 0;
349	}
350	if (ldynsym) {
351		(void) st_setstring(dynstr, ofl->ofl_name, &stoff);
352		sym = &ldynsym[ldynsym_ndx];
353		/* LINTED */
354		sym->st_name = stoff;
355		sym->st_value = 0;
356		sym->st_size = 0;
357		sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_FILE);
358		sym->st_other = 0;
359		sym->st_shndx = SHN_ABS;
360
361		/* Scoped symbols get filled in global loop below */
362		ldynscopesym_ndx = ldynsym_ndx + 1;
363		ldynsym_ndx += ofl->ofl_dynscopecnt;
364	}
365
366	/*
367	 * If we are to display GOT summary information, then allocate
368	 * the buffer to 'cache' the GOT symbols into now.
369	 */
370	if (DBG_ENABLED) {
371		if ((ofl->ofl_gottable = gottable =
372		    libld_calloc(ofl->ofl_gotcnt, sizeof (Gottable))) == NULL)
373			return ((Addr)S_ERROR);
374	}
375
376	/*
377	 * Traverse the program headers.  Determine the last executable segment
378	 * and the last data segment so that we can update etext and edata. If
379	 * we have empty segments (reservations) record them for setting _end.
380	 */
381	for (APLIST_TRAVERSE(ofl->ofl_segs, idx1, sgp)) {
382		Phdr	*phd = &(sgp->sg_phdr);
383		Os_desc	*osp;
384		Aliste	idx2;
385
386		if (phd->p_type == PT_LOAD) {
387			if (sgp->sg_osdescs != NULL) {
388				Word	_flags = phd->p_flags & (PF_W | PF_R);
389
390				if (_flags == PF_R)
391					tsgp = sgp;
392				else if (_flags == (PF_W | PF_R))
393					dsgp = sgp;
394			} else if (sgp->sg_flags & FLG_SG_EMPTY)
395				esgp = sgp;
396		}
397
398		/*
399		 * Generate a section symbol for each output section.
400		 */
401		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
402			Word	sectndx;
403
404			sym = &_sym;
405			sym->st_value = osp->os_shdr->sh_addr;
406			sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_SECTION);
407			/* LINTED */
408			sectndx = elf_ndxscn(osp->os_scn);
409
410			if (symtab) {
411				if (sectndx >= SHN_LORESERVE) {
412					symshndx[symtab_ndx] = sectndx;
413					sym->st_shndx = SHN_XINDEX;
414				} else {
415					/* LINTED */
416					sym->st_shndx = (Half)sectndx;
417				}
418				symtab[symtab_ndx++] = *sym;
419			}
420
421			if (dynsym && (osp->os_flags & FLG_OS_OUTREL))
422				dynsym[dynsym_ndx++] = *sym;
423
424			if ((dynsym == NULL) ||
425			    (osp->os_flags & FLG_OS_OUTREL)) {
426				if (versym)
427					versym[*symndx - 1] = 0;
428				osp->os_identndx = *symndx - 1;
429				DBG_CALL(Dbg_syms_sec_entry(ofl->ofl_lml,
430				    osp->os_identndx, sgp, osp));
431			}
432
433			/*
434			 * Generate the .shstrtab for this section.
435			 */
436			(void) st_setstring(shstrtab, osp->os_name, &stoff);
437			osp->os_shdr->sh_name = (Word)stoff;
438
439			/*
440			 * Find the section index for our special symbols.
441			 */
442			if (sgp == tsgp) {
443				/* LINTED */
444				etext_ndx = elf_ndxscn(osp->os_scn);
445			} else if (dsgp == sgp) {
446				if (osp->os_shdr->sh_type != SHT_NOBITS) {
447					/* LINTED */
448					edata_ndx = elf_ndxscn(osp->os_scn);
449				}
450			}
451
452			if (start_set == 0) {
453				start = sgp->sg_phdr.p_vaddr;
454				/* LINTED */
455				start_ndx = elf_ndxscn(osp->os_scn);
456				start_set++;
457			}
458
459			/*
460			 * While we're here, determine whether a .init or .fini
461			 * section exist.
462			 */
463			if ((iosp == NULL) && (strcmp(osp->os_name,
464			    MSG_ORIG(MSG_SCN_INIT)) == 0))
465				iosp = osp;
466			if ((fosp == NULL) && (strcmp(osp->os_name,
467			    MSG_ORIG(MSG_SCN_FINI)) == 0))
468				fosp = osp;
469		}
470	}
471
472	/*
473	 * Add local register symbols to the .dynsym.  These are required as
474	 * DT_REGISTER .dynamic entries must have a symbol to reference.
475	 */
476	if (ofl->ofl_regsyms && dynsym) {
477		int	ndx;
478
479		for (ndx = 0; ndx < ofl->ofl_regsymsno; ndx++) {
480			Sym_desc	*rsdp;
481
482			if ((rsdp = ofl->ofl_regsyms[ndx]) == NULL)
483				continue;
484
485			if (!SYM_IS_HIDDEN(rsdp) &&
486			    (ELF_ST_BIND(rsdp->sd_sym->st_info) != STB_LOCAL))
487				continue;
488
489			dynsym[dynsym_ndx] = *(rsdp->sd_sym);
490			rsdp->sd_symndx = *symndx;
491
492			if (dynsym[dynsym_ndx].st_name) {
493				(void) st_setstring(dynstr, rsdp->sd_name,
494				    &stoff);
495				dynsym[dynsym_ndx].st_name = stoff;
496			}
497			dynsym_ndx++;
498		}
499	}
500
501	/*
502	 * Having traversed all the output segments, warn the user if the
503	 * traditional text or data segments don't exist.  Otherwise from these
504	 * segments establish the values for `etext', `edata', `end', `END',
505	 * and `START'.
506	 */
507	if (!(flags & FLG_OF_RELOBJ)) {
508		Sg_desc	*sgp;
509
510		if (tsgp)
511			etext = tsgp->sg_phdr.p_vaddr + tsgp->sg_phdr.p_filesz;
512		else {
513			etext = (Addr)0;
514			etext_ndx = SHN_ABS;
515			etext_abs = 1;
516			if (flags & FLG_OF_VERBOSE)
517				eprintf(ofl->ofl_lml, ERR_WARNING,
518				    MSG_INTL(MSG_UPD_NOREADSEG));
519		}
520		if (dsgp) {
521			edata = dsgp->sg_phdr.p_vaddr + dsgp->sg_phdr.p_filesz;
522		} else {
523			edata = (Addr)0;
524			edata_ndx = SHN_ABS;
525			edata_abs = 1;
526			if (flags & FLG_OF_VERBOSE)
527				eprintf(ofl->ofl_lml, ERR_WARNING,
528				    MSG_INTL(MSG_UPD_NORDWRSEG));
529		}
530
531		if (dsgp == NULL) {
532			if (tsgp)
533				sgp = tsgp;
534			else
535				sgp = 0;
536		} else if (tsgp == NULL)
537			sgp = dsgp;
538		else if (dsgp->sg_phdr.p_vaddr > tsgp->sg_phdr.p_vaddr)
539			sgp = dsgp;
540		else if (dsgp->sg_phdr.p_vaddr < tsgp->sg_phdr.p_vaddr)
541			sgp = tsgp;
542		else {
543			/*
544			 * One of the segments must be of zero size.
545			 */
546			if (tsgp->sg_phdr.p_memsz)
547				sgp = tsgp;
548			else
549				sgp = dsgp;
550		}
551
552		if (esgp && (esgp->sg_phdr.p_vaddr > sgp->sg_phdr.p_vaddr))
553			sgp = esgp;
554
555		if (sgp) {
556			end = sgp->sg_phdr.p_vaddr + sgp->sg_phdr.p_memsz;
557
558			/*
559			 * If the last loadable segment is a read-only segment,
560			 * then the application which uses the symbol _end to
561			 * find the beginning of writable heap area may cause
562			 * segmentation violation. We adjust the value of the
563			 * _end to skip to the next page boundary.
564			 *
565			 * 6401812 System interface which returs beginning
566			 *	   heap would be nice.
567			 * When the above RFE is implemented, the changes below
568			 * could be changed in a better way.
569			 */
570			if ((sgp->sg_phdr.p_flags & PF_W) == 0)
571				end = (Addr)S_ROUND(end, sysconf(_SC_PAGESIZE));
572
573			/*
574			 * If we're dealing with a memory reservation there are
575			 * no sections to establish an index for _end, so assign
576			 * it as an absolute.
577			 */
578			if (sgp->sg_osdescs != NULL) {
579				/*
580				 * Determine the last section for this segment.
581				 */
582				Os_desc	*osp = sgp->sg_osdescs->apl_data
583				    [sgp->sg_osdescs->apl_nitems - 1];
584
585				/* LINTED */
586				end_ndx = elf_ndxscn(osp->os_scn);
587			} else {
588				end_ndx = SHN_ABS;
589				end_abs = 1;
590			}
591		} else {
592			end = (Addr) 0;
593			end_ndx = SHN_ABS;
594			end_abs = 1;
595			eprintf(ofl->ofl_lml, ERR_WARNING,
596			    MSG_INTL(MSG_UPD_NOSEG));
597		}
598	}
599
600	/*
601	 * Initialize the scoped symbol table entry point.  This is for all
602	 * the global symbols that have been scoped to locals and will be
603	 * filled in during global symbol processing so that we don't have
604	 * to traverse the globals symbol hash array more than once.
605	 */
606	if (symtab) {
607		scopesym_bndx = symtab_ndx;
608		scopesym_ndx = scopesym_bndx;
609		symtab_ndx += ofl->ofl_scopecnt;
610	}
611
612	/*
613	 * If expanding partially expanded symbols under '-z nopartial',
614	 * prepare to do that.
615	 */
616	if (ofl->ofl_isparexpn) {
617		osp = ofl->ofl_isparexpn->is_osdesc;
618		parexpnbase = parexpnaddr = (Addr)(osp->os_shdr->sh_addr +
619		    ofl->ofl_isparexpn->is_indata->d_off);
620		/* LINTED */
621		parexpnndx = elf_ndxscn(osp->os_scn);
622		ofl->ofl_parexpnndx = osp->os_identndx;
623	}
624
625	/*
626	 * If we are generating a .symtab collect all the local symbols,
627	 * assigning a new virtual address or displacement (value).
628	 */
629	for (APLIST_TRAVERSE(ofl->ofl_objs, idx1, ifl)) {
630		Xword		lndx, local = ifl->ifl_locscnt;
631		Cap_desc	*cdp = ifl->ifl_caps;
632
633		for (lndx = 1; lndx < local; lndx++) {
634			Gotndx		*gnp;
635			uchar_t		type;
636			Word		*_symshndx;
637			int		enter_in_symtab, enter_in_ldynsym;
638			int		update_done;
639
640			sdp = ifl->ifl_oldndx[lndx];
641			sym = sdp->sd_sym;
642
643			/*
644			 * Assign a got offset if necessary.
645			 */
646			if ((ld_targ.t_mr.mr_assign_got != NULL) &&
647			    (*ld_targ.t_mr.mr_assign_got)(ofl, sdp) == S_ERROR)
648				return ((Addr)S_ERROR);
649
650			if (DBG_ENABLED) {
651				Aliste	idx2;
652
653				for (ALIST_TRAVERSE(sdp->sd_GOTndxs,
654				    idx2, gnp)) {
655					gottable->gt_sym = sdp;
656					gottable->gt_gndx.gn_gotndx =
657					    gnp->gn_gotndx;
658					gottable->gt_gndx.gn_addend =
659					    gnp->gn_addend;
660					gottable++;
661				}
662			}
663
664			if ((type = ELF_ST_TYPE(sym->st_info)) == STT_SECTION)
665				continue;
666
667			/*
668			 * Ignore any symbols that have been marked as invalid
669			 * during input processing.  Providing these aren't used
670			 * for relocation they'll just be dropped from the
671			 * output image.
672			 */
673			if (sdp->sd_flags & FLG_SY_INVALID)
674				continue;
675
676			/*
677			 * If the section that this symbol was associated
678			 * with has been discarded - then we discard
679			 * the local symbol along with it.
680			 */
681			if (sdp->sd_flags & FLG_SY_ISDISC)
682				continue;
683
684			/*
685			 * If this symbol is from a different file
686			 * than the input descriptor we are processing,
687			 * treat it as if it has FLG_SY_ISDISC set.
688			 * This happens when sloppy_comdat_reloc()
689			 * replaces a symbol to a discarded comdat section
690			 * with an equivalent symbol from a different
691			 * file. We only want to enter such a symbol
692			 * once --- as part of the file that actually
693			 * supplies it.
694			 */
695			if (ifl != sdp->sd_file)
696				continue;
697
698			/*
699			 * Generate an output symbol to represent this input
700			 * symbol.  Even if the symbol table is to be stripped
701			 * we still need to update any local symbols that are
702			 * used during relocation.
703			 */
704			enter_in_symtab = symtab &&
705			    (!(ofl->ofl_flags & FLG_OF_REDLSYM) ||
706			    sdp->sd_move);
707			enter_in_ldynsym = ldynsym && sdp->sd_name &&
708			    ldynsym_symtype[type] &&
709			    !(ofl->ofl_flags & FLG_OF_REDLSYM);
710			_symshndx = NULL;
711
712			if (enter_in_symtab) {
713				if (!dynsym)
714					sdp->sd_symndx = *symndx;
715				symtab[symtab_ndx] = *sym;
716
717				/*
718				 * Provided this isn't an unnamed register
719				 * symbol, update its name.
720				 */
721				if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) ||
722				    symtab[symtab_ndx].st_name) {
723					(void) st_setstring(strtab,
724					    sdp->sd_name, &stoff);
725					symtab[symtab_ndx].st_name = stoff;
726				}
727				sdp->sd_flags &= ~FLG_SY_CLEAN;
728				if (symshndx)
729					_symshndx = &symshndx[symtab_ndx];
730				sdp->sd_sym = sym = &symtab[symtab_ndx++];
731
732				if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
733				    (sym->st_shndx == SHN_ABS) &&
734				    !enter_in_ldynsym)
735					continue;
736			} else if (enter_in_ldynsym) {
737				/*
738				 * Not using symtab, but we do have ldynsym
739				 * available.
740				 */
741				ldynsym[ldynsym_ndx] = *sym;
742				(void) st_setstring(dynstr, sdp->sd_name,
743				    &stoff);
744				ldynsym[ldynsym_ndx].st_name = stoff;
745
746				sdp->sd_flags &= ~FLG_SY_CLEAN;
747				if (ldynshndx)
748					_symshndx = &ldynshndx[ldynsym_ndx];
749				sdp->sd_sym = sym = &ldynsym[ldynsym_ndx];
750				/* Add it to sort section if it qualifies */
751				ADD_TO_DYNSORT(sdp, sym, type, ldynsym_ndx);
752				ldynsym_ndx++;
753			} else {	/* Not using symtab or ldynsym */
754				/*
755				 * If this symbol requires modifying to provide
756				 * for a relocation or move table update, make
757				 * a copy of it.
758				 */
759				if (!(sdp->sd_flags & FLG_SY_UPREQD) &&
760				    !(sdp->sd_move))
761					continue;
762				if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
763				    (sym->st_shndx == SHN_ABS))
764					continue;
765
766				if (ld_sym_copy(sdp) == S_ERROR)
767					return ((Addr)S_ERROR);
768				sym = sdp->sd_sym;
769			}
770
771			/*
772			 * Update the symbols contents if necessary.
773			 */
774			update_done = 0;
775			if (type == STT_FILE) {
776				sdp->sd_shndx = sym->st_shndx = SHN_ABS;
777				sdp->sd_flags |= FLG_SY_SPECSEC;
778				update_done = 1;
779			}
780
781			/*
782			 * If we are expanding the locally bound partially
783			 * initialized symbols, then update the address here.
784			 */
785			if (ofl->ofl_isparexpn &&
786			    (sdp->sd_flags & FLG_SY_PAREXPN) && !update_done) {
787				sym->st_shndx = parexpnndx;
788				sdp->sd_isc = ofl->ofl_isparexpn;
789				sym->st_value = parexpnaddr;
790				parexpnaddr += sym->st_size;
791				if ((flags & FLG_OF_RELOBJ) == 0)
792					sym->st_value -= parexpnbase;
793			}
794
795			/*
796			 * If this isn't an UNDEF symbol (ie. an input section
797			 * is associated), update the symbols value and index.
798			 */
799			if (((isc = sdp->sd_isc) != NULL) && !update_done) {
800				Word	sectndx;
801
802				osp = isc->is_osdesc;
803				/* LINTED */
804				sym->st_value +=
805				    (Off)_elf_getxoff(isc->is_indata);
806				if ((flags & FLG_OF_RELOBJ) == 0) {
807					sym->st_value += osp->os_shdr->sh_addr;
808					/*
809					 * TLS symbols are relative to
810					 * the TLS segment.
811					 */
812					if ((type == STT_TLS) &&
813					    (ofl->ofl_tlsphdr)) {
814						sym->st_value -=
815						    ofl->ofl_tlsphdr->p_vaddr;
816					}
817				}
818				/* LINTED */
819				if ((sdp->sd_shndx = sectndx =
820				    elf_ndxscn(osp->os_scn)) >= SHN_LORESERVE) {
821					if (_symshndx) {
822						*_symshndx = sectndx;
823					}
824					sym->st_shndx = SHN_XINDEX;
825				} else {
826					/* LINTED */
827					sym->st_shndx = sectndx;
828				}
829			}
830
831			/*
832			 * If entering the symbol in both the symtab and the
833			 * ldynsym, then the one in symtab needs to be
834			 * copied to ldynsym. If it is only in the ldynsym,
835			 * then the code above already set it up and we have
836			 * nothing more to do here.
837			 */
838			if (enter_in_symtab && enter_in_ldynsym) {
839				ldynsym[ldynsym_ndx] = *sym;
840				(void) st_setstring(dynstr, sdp->sd_name,
841				    &stoff);
842				ldynsym[ldynsym_ndx].st_name = stoff;
843
844				if (_symshndx && ldynshndx)
845					ldynshndx[ldynsym_ndx] = *_symshndx;
846
847				/* Add it to sort section if it qualifies */
848				ADD_TO_DYNSORT(sdp, sym, type, ldynsym_ndx);
849
850				ldynsym_ndx++;
851			}
852		}
853
854		/*
855		 * If this input file has undergone object to symbol
856		 * capabilities conversion, supply any new capabilities symbols.
857		 * These symbols are copies of the original global symbols, and
858		 * follow the existing local symbols that are supplied from this
859		 * input file (which are identified with a preceding STT_FILE).
860		 */
861		if (symtab && cdp && cdp->ca_syms) {
862			Aliste		idx2;
863			Cap_sym		*csp;
864
865			for (APLIST_TRAVERSE(cdp->ca_syms, idx2, csp)) {
866				Is_desc	*isp;
867
868				sdp = csp->cs_sdp;
869				sym = sdp->sd_sym;
870
871				if ((isp = sdp->sd_isc) != NULL) {
872					Os_desc	*osp = isp->is_osdesc;
873
874					/*
875					 * Update the symbols value.
876					 */
877					/* LINTED */
878					sym->st_value +=
879					    (Off)_elf_getxoff(isp->is_indata);
880					if ((flags & FLG_OF_RELOBJ) == 0)
881						sym->st_value +=
882						    osp->os_shdr->sh_addr;
883
884					/*
885					 * Update the symbols section index.
886					 */
887					sdp->sd_shndx = sym->st_shndx =
888					    elf_ndxscn(osp->os_scn);
889				}
890
891				symtab[symtab_ndx] = *sym;
892				(void) st_setstring(strtab, sdp->sd_name,
893				    &stoff);
894				symtab[symtab_ndx].st_name = stoff;
895				sdp->sd_symndx = symtab_ndx++;
896			}
897		}
898	}
899
900	symtab_gbl_bndx = symtab_ndx;	/* .symtab index of 1st global entry */
901
902	/*
903	 * Two special symbols are `_init' and `_fini'.  If these are supplied
904	 * by crti.o then they are used to represent the total concatenation of
905	 * the `.init' and `.fini' sections.
906	 *
907	 * Determine whether any .init or .fini sections exist.  If these
908	 * sections exist and a dynamic object is being built, but no `_init'
909	 * or `_fini' symbols are found, then the user is probably building
910	 * this object directly from ld(1) rather than using a compiler driver
911	 * that provides the symbols via crt's.
912	 *
913	 * If the .init or .fini section exist, and their associated symbols,
914	 * determine the size of the sections and updated the symbols value
915	 * accordingly.
916	 */
917	if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_INIT_U), SYM_NOHASH, 0,
918	    ofl)) != NULL) && (sdp->sd_ref == REF_REL_NEED) && sdp->sd_isc &&
919	    (sdp->sd_isc->is_osdesc == iosp)) {
920		if (ld_sym_copy(sdp) == S_ERROR)
921			return ((Addr)S_ERROR);
922		sdp->sd_sym->st_size = sdp->sd_isc->is_osdesc->os_shdr->sh_size;
923
924	} else if (iosp && !(flags & FLG_OF_RELOBJ)) {
925		eprintf(ofl->ofl_lml, ERR_WARNING, MSG_INTL(MSG_SYM_NOCRT),
926		    MSG_ORIG(MSG_SYM_INIT_U), MSG_ORIG(MSG_SCN_INIT));
927	}
928
929	if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_FINI_U), SYM_NOHASH, 0,
930	    ofl)) != NULL) && (sdp->sd_ref == REF_REL_NEED) && sdp->sd_isc &&
931	    (sdp->sd_isc->is_osdesc == fosp)) {
932		if (ld_sym_copy(sdp) == S_ERROR)
933			return ((Addr)S_ERROR);
934		sdp->sd_sym->st_size = sdp->sd_isc->is_osdesc->os_shdr->sh_size;
935
936	} else if (fosp && !(flags & FLG_OF_RELOBJ)) {
937		eprintf(ofl->ofl_lml, ERR_WARNING, MSG_INTL(MSG_SYM_NOCRT),
938		    MSG_ORIG(MSG_SYM_FINI_U), MSG_ORIG(MSG_SCN_FINI));
939	}
940
941	/*
942	 * Assign .bss information for use with updating COMMON symbols.
943	 */
944	if (ofl->ofl_isbss) {
945		isc = ofl->ofl_isbss;
946		osp = isc->is_osdesc;
947
948		bssaddr = osp->os_shdr->sh_addr +
949		    (Off)_elf_getxoff(isc->is_indata);
950		/* LINTED */
951		bssndx = elf_ndxscn(osp->os_scn);
952	}
953
954#if	defined(_ELF64)
955	/*
956	 * For amd64 target, assign .lbss information for use
957	 * with updating LCOMMON symbols.
958	 */
959	if ((ld_targ.t_m.m_mach == EM_AMD64) && ofl->ofl_islbss) {
960		osp = ofl->ofl_islbss->is_osdesc;
961
962		lbssaddr = osp->os_shdr->sh_addr +
963		    (Off)_elf_getxoff(ofl->ofl_islbss->is_indata);
964		/* LINTED */
965		lbssndx = elf_ndxscn(osp->os_scn);
966	}
967#endif
968	/*
969	 * Assign .tlsbss information for use with updating COMMON symbols.
970	 */
971	if (ofl->ofl_istlsbss) {
972		osp = ofl->ofl_istlsbss->is_osdesc;
973		tlsbssaddr = osp->os_shdr->sh_addr +
974		    (Off)_elf_getxoff(ofl->ofl_istlsbss->is_indata);
975		/* LINTED */
976		tlsbssndx = elf_ndxscn(osp->os_scn);
977	}
978
979	if ((sorted_syms = libld_calloc(ofl->ofl_globcnt +
980	    ofl->ofl_elimcnt + ofl->ofl_scopecnt,
981	    sizeof (*sorted_syms))) == NULL)
982		return ((Addr)S_ERROR);
983
984	scndx = 0;
985	ssndx = ofl->ofl_scopecnt + ofl->ofl_elimcnt;
986
987	DBG_CALL(Dbg_syms_up_title(ofl->ofl_lml));
988
989	/*
990	 * Traverse the internal symbol table updating global symbol information
991	 * and allocating common.
992	 */
993	for (sav = avl_first(&ofl->ofl_symavl); sav;
994	    sav = AVL_NEXT(&ofl->ofl_symavl, sav)) {
995		Sym	*symptr;
996		int	local;
997		int	restore;
998
999		sdp = sav->sav_sdp;
1000
1001		/*
1002		 * Ignore any symbols that have been marked as invalid during
1003		 * input processing.  Providing these aren't used for
1004		 * relocation, they will be dropped from the output image.
1005		 */
1006		if (sdp->sd_flags & FLG_SY_INVALID) {
1007			DBG_CALL(Dbg_syms_old(ofl, sdp));
1008			DBG_CALL(Dbg_syms_ignore(ofl, sdp));
1009			continue;
1010		}
1011
1012		/*
1013		 * Only needed symbols are copied to the output symbol table.
1014		 */
1015		if (sdp->sd_ref == REF_DYN_SEEN)
1016			continue;
1017
1018		if (SYM_IS_HIDDEN(sdp) && (flags & FLG_OF_PROCRED))
1019			local = 1;
1020		else
1021			local = 0;
1022
1023		if (local || (ofl->ofl_hashbkts == 0)) {
1024			sorted_syms[scndx++].sl_sdp = sdp;
1025		} else {
1026			sorted_syms[ssndx].sl_hval = sdp->sd_aux->sa_hash %
1027			    ofl->ofl_hashbkts;
1028			sorted_syms[ssndx].sl_sdp = sdp;
1029			ssndx++;
1030		}
1031
1032		/*
1033		 * Note - expand the COMMON symbols here because an address
1034		 * must be assigned to them in the same order that space was
1035		 * calculated in sym_validate().  If this ordering isn't
1036		 * followed differing alignment requirements can throw us all
1037		 * out of whack.
1038		 *
1039		 * The expanded .bss global symbol is handled here as well.
1040		 *
1041		 * The actual adding entries into the symbol table still occurs
1042		 * below in hashbucket order.
1043		 */
1044		symptr = sdp->sd_sym;
1045		restore = 0;
1046		if ((sdp->sd_flags & FLG_SY_PAREXPN) ||
1047		    ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1048		    (sdp->sd_shndx = symptr->st_shndx) == SHN_COMMON)) {
1049
1050			/*
1051			 * An expanded symbol goes to a special .data section
1052			 * prepared for that purpose (ofl->ofl_isparexpn).
1053			 * Assign COMMON allocations to .bss.
1054			 * Otherwise leave it as is.
1055			 */
1056			if (sdp->sd_flags & FLG_SY_PAREXPN) {
1057				restore = 1;
1058				sdp->sd_shndx = parexpnndx;
1059				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1060				symptr->st_value = (Xword) S_ROUND(
1061				    parexpnaddr, symptr->st_value);
1062				parexpnaddr = symptr->st_value +
1063				    symptr->st_size;
1064				sdp->sd_isc = ofl->ofl_isparexpn;
1065				sdp->sd_flags |= FLG_SY_COMMEXP;
1066
1067			} else if (ELF_ST_TYPE(symptr->st_info) != STT_TLS &&
1068			    (local || !(flags & FLG_OF_RELOBJ))) {
1069				restore = 1;
1070				sdp->sd_shndx = bssndx;
1071				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1072				symptr->st_value = (Xword)S_ROUND(bssaddr,
1073				    symptr->st_value);
1074				bssaddr = symptr->st_value + symptr->st_size;
1075				sdp->sd_isc = ofl->ofl_isbss;
1076				sdp->sd_flags |= FLG_SY_COMMEXP;
1077
1078			} else if (ELF_ST_TYPE(symptr->st_info) == STT_TLS &&
1079			    (local || !(flags & FLG_OF_RELOBJ))) {
1080				restore = 1;
1081				sdp->sd_shndx = tlsbssndx;
1082				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1083				symptr->st_value = (Xword)S_ROUND(tlsbssaddr,
1084				    symptr->st_value);
1085				tlsbssaddr = symptr->st_value + symptr->st_size;
1086				sdp->sd_isc = ofl->ofl_istlsbss;
1087				sdp->sd_flags |= FLG_SY_COMMEXP;
1088				/*
1089				 * TLS symbols are relative to the TLS segment.
1090				 */
1091				symptr->st_value -= ofl->ofl_tlsphdr->p_vaddr;
1092			}
1093#if	defined(_ELF64)
1094		} else if ((ld_targ.t_m.m_mach == EM_AMD64) &&
1095		    (sdp->sd_flags & FLG_SY_SPECSEC) &&
1096		    ((sdp->sd_shndx = symptr->st_shndx) ==
1097		    SHN_X86_64_LCOMMON) &&
1098		    ((local || !(flags & FLG_OF_RELOBJ)))) {
1099			restore = 1;
1100			sdp->sd_shndx = lbssndx;
1101			sdp->sd_flags &= ~FLG_SY_SPECSEC;
1102			symptr->st_value = (Xword)S_ROUND(lbssaddr,
1103			    symptr->st_value);
1104			lbssaddr = symptr->st_value + symptr->st_size;
1105			sdp->sd_isc = ofl->ofl_islbss;
1106			sdp->sd_flags |= FLG_SY_COMMEXP;
1107#endif
1108		}
1109
1110		if (restore != 0) {
1111			uchar_t		type, bind;
1112
1113			/*
1114			 * Make sure this COMMON symbol is returned to the same
1115			 * binding as was defined in the original relocatable
1116			 * object reference.
1117			 */
1118			type = ELF_ST_TYPE(symptr->st_info);
1119			if (sdp->sd_flags & FLG_SY_GLOBREF)
1120				bind = STB_GLOBAL;
1121			else
1122				bind = STB_WEAK;
1123
1124			symptr->st_info = ELF_ST_INFO(bind, type);
1125		}
1126	}
1127
1128	/*
1129	 * If this is a dynamic object then add any local capabilities symbols.
1130	 */
1131	if (dynsym && ofl->ofl_capfamilies) {
1132		Cap_avlnode	*cav;
1133
1134		for (cav = avl_first(ofl->ofl_capfamilies); cav;
1135		    cav = AVL_NEXT(ofl->ofl_capfamilies, cav)) {
1136			Cap_sym		*csp;
1137			Aliste		idx;
1138
1139			for (APLIST_TRAVERSE(cav->cn_members, idx, csp)) {
1140				sdp = csp->cs_sdp;
1141
1142				DBG_CALL(Dbg_syms_created(ofl->ofl_lml,
1143				    sdp->sd_name));
1144				DBG_CALL(Dbg_syms_entered(ofl, sdp->sd_sym,
1145				    sdp));
1146
1147				dynsym[dynsym_ndx] = *sdp->sd_sym;
1148
1149				(void) st_setstring(dynstr, sdp->sd_name,
1150				    &stoff);
1151				dynsym[dynsym_ndx].st_name = stoff;
1152
1153				sdp->sd_sym = &dynsym[dynsym_ndx];
1154				sdp->sd_symndx = dynsym_ndx;
1155
1156				/*
1157				 * Indicate that this is a capabilities symbol.
1158				 * Note, that this identification only provides
1159				 * information regarding the symbol that is
1160				 * visible from elfdump(1) -y.  The association
1161				 * of a symbol to its capabilities is derived
1162				 * from a .SUNW_capinfo entry.
1163				 */
1164				if (syminfo) {
1165					syminfo[dynsym_ndx].si_flags |=
1166					    SYMINFO_FLG_CAP;
1167				}
1168
1169				dynsym_ndx++;
1170			}
1171		}
1172	}
1173
1174	if (ofl->ofl_hashbkts) {
1175		qsort(sorted_syms + ofl->ofl_scopecnt + ofl->ofl_elimcnt,
1176		    ofl->ofl_globcnt, sizeof (Sym_s_list),
1177		    (int (*)(const void *, const void *))sym_hash_compare);
1178	}
1179
1180	for (ssndx = 0; ssndx < (ofl->ofl_elimcnt + ofl->ofl_scopecnt +
1181	    ofl->ofl_globcnt); ssndx++) {
1182		const char	*name;
1183		Sym		*sym;
1184		Sym_aux		*sap;
1185		Half		spec;
1186		int		local = 0, dynlocal = 0, enter_in_symtab;
1187		Gotndx		*gnp;
1188		Word		sectndx;
1189
1190		sdp = sorted_syms[ssndx].sl_sdp;
1191		sectndx = 0;
1192
1193		if (symtab)
1194			enter_in_symtab = 1;
1195		else
1196			enter_in_symtab = 0;
1197
1198		/*
1199		 * Assign a got offset if necessary.
1200		 */
1201		if ((ld_targ.t_mr.mr_assign_got != NULL) &&
1202		    (*ld_targ.t_mr.mr_assign_got)(ofl, sdp) == S_ERROR)
1203			return ((Addr)S_ERROR);
1204
1205		if (DBG_ENABLED) {
1206			Aliste	idx2;
1207
1208			for (ALIST_TRAVERSE(sdp->sd_GOTndxs, idx2, gnp)) {
1209				gottable->gt_sym = sdp;
1210				gottable->gt_gndx.gn_gotndx = gnp->gn_gotndx;
1211				gottable->gt_gndx.gn_addend = gnp->gn_addend;
1212				gottable++;
1213			}
1214
1215			if (sdp->sd_aux && sdp->sd_aux->sa_PLTGOTndx) {
1216				gottable->gt_sym = sdp;
1217				gottable->gt_gndx.gn_gotndx =
1218				    sdp->sd_aux->sa_PLTGOTndx;
1219				gottable++;
1220			}
1221		}
1222
1223		/*
1224		 * If this symbol has been marked as being reduced to local
1225		 * scope then it will have to be placed in the scoped portion
1226		 * of the .symtab.  Retain the appropriate index for use in
1227		 * version symbol indexing and relocation.
1228		 */
1229		if (SYM_IS_HIDDEN(sdp) && (flags & FLG_OF_PROCRED)) {
1230			local = 1;
1231			if (!(sdp->sd_flags & FLG_SY_ELIM) && !dynsym)
1232				sdp->sd_symndx = scopesym_ndx;
1233			else
1234				sdp->sd_symndx = 0;
1235
1236			if (sdp->sd_flags & FLG_SY_ELIM) {
1237				enter_in_symtab = 0;
1238			} else if (ldynsym && sdp->sd_sym->st_name &&
1239			    ldynsym_symtype[
1240			    ELF_ST_TYPE(sdp->sd_sym->st_info)]) {
1241				dynlocal = 1;
1242			}
1243		} else {
1244			sdp->sd_symndx = *symndx;
1245		}
1246
1247		/*
1248		 * Copy basic symbol and string information.
1249		 */
1250		name = sdp->sd_name;
1251		sap = sdp->sd_aux;
1252
1253		/*
1254		 * If we require to record version symbol indexes, update the
1255		 * associated version symbol information for all defined
1256		 * symbols.  If a version definition is required any zero value
1257		 * symbol indexes would have been flagged as undefined symbol
1258		 * errors, however if we're just scoping these need to fall into
1259		 * the base of global symbols.
1260		 */
1261		if (sdp->sd_symndx && versym) {
1262			Half	vndx = 0;
1263
1264			if (sdp->sd_flags & FLG_SY_MVTOCOMM) {
1265				vndx = VER_NDX_GLOBAL;
1266			} else if (sdp->sd_ref == REF_REL_NEED) {
1267				vndx = sap->sa_overndx;
1268
1269				if ((vndx == 0) &&
1270				    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
1271					if (SYM_IS_HIDDEN(sdp))
1272						vndx = VER_NDX_LOCAL;
1273					else
1274						vndx = VER_NDX_GLOBAL;
1275				}
1276			} else if ((sdp->sd_ref == REF_DYN_NEED) &&
1277			    (sap->sa_dverndx > 0) &&
1278			    (sap->sa_dverndx <= sdp->sd_file->ifl_vercnt) &&
1279			    (sdp->sd_file->ifl_verndx != NULL)) {
1280				/* Use index of verneed record */
1281				vndx = sdp->sd_file->ifl_verndx
1282				    [sap->sa_dverndx].vi_overndx;
1283			}
1284			versym[sdp->sd_symndx] = vndx;
1285		}
1286
1287		/*
1288		 * If we are creating the .syminfo section then set per symbol
1289		 * flags here.
1290		 */
1291		if (sdp->sd_symndx && syminfo &&
1292		    !(sdp->sd_flags & FLG_SY_NOTAVAIL)) {
1293			int	ndx = sdp->sd_symndx;
1294			APlist	**alpp = &(ofl->ofl_symdtent);
1295
1296			if (sdp->sd_flags & FLG_SY_MVTOCOMM)
1297				/*
1298				 * Identify a copy relocation symbol.
1299				 */
1300				syminfo[ndx].si_flags |= SYMINFO_FLG_COPY;
1301
1302			if (sdp->sd_ref == REF_DYN_NEED) {
1303				/*
1304				 * A reference is bound to a needed dependency.
1305				 * Save the syminfo entry, so that when the
1306				 * .dynamic section has been updated, a
1307				 * DT_NEEDED entry can be associated
1308				 * (see update_osyminfo()).
1309				 */
1310				if (aplist_append(alpp, sdp,
1311				    AL_CNT_OFL_SYMINFOSYMS) == NULL)
1312					return (0);
1313
1314				/*
1315				 * Flag that the symbol has a direct association
1316				 * with the external reference (this is an old
1317				 * tagging, that has no real effect by itself).
1318				 * And flag whether this reference is lazy
1319				 * loadable.
1320				 */
1321				syminfo[ndx].si_flags |= SYMINFO_FLG_DIRECT;
1322				if (sdp->sd_flags & FLG_SY_LAZYLD)
1323					syminfo[ndx].si_flags |=
1324					    SYMINFO_FLG_LAZYLOAD;
1325
1326				/*
1327				 * Enable direct symbol bindings if:
1328				 *
1329				 *  -	Symbol was identified with the DIRECT
1330				 *	keyword in a mapfile.
1331				 *
1332				 *  -	Symbol reference has been bound to a
1333				 * 	dependency which was specified as
1334				 *	requiring direct bindings with -zdirect.
1335				 *
1336				 *  -	All symbol references are required to
1337				 *	use direct bindings via -Bdirect.
1338				 */
1339				if (sdp->sd_flags & FLG_SY_DIR)
1340					syminfo[ndx].si_flags |=
1341					    SYMINFO_FLG_DIRECTBIND;
1342
1343			} else if ((sdp->sd_flags & FLG_SY_EXTERN) &&
1344			    (sdp->sd_sym->st_shndx == SHN_UNDEF)) {
1345				/*
1346				 * If this symbol has been explicitly defined
1347				 * as external, and remains unresolved, mark
1348				 * it as external.
1349				 */
1350				syminfo[ndx].si_boundto = SYMINFO_BT_EXTERN;
1351
1352			} else if ((sdp->sd_flags & FLG_SY_PARENT) &&
1353			    (sdp->sd_sym->st_shndx == SHN_UNDEF)) {
1354				/*
1355				 * If this symbol has been explicitly defined
1356				 * to be a reference to a parent object,
1357				 * indicate whether a direct binding should be
1358				 * established.
1359				 */
1360				syminfo[ndx].si_flags |= SYMINFO_FLG_DIRECT;
1361				syminfo[ndx].si_boundto = SYMINFO_BT_PARENT;
1362				if (sdp->sd_flags & FLG_SY_DIR)
1363					syminfo[ndx].si_flags |=
1364					    SYMINFO_FLG_DIRECTBIND;
1365
1366			} else if (sdp->sd_flags & FLG_SY_STDFLTR) {
1367				/*
1368				 * A filter definition.  Although this symbol
1369				 * can only be a stub, it might be necessary to
1370				 * prevent external direct bindings.
1371				 */
1372				syminfo[ndx].si_flags |= SYMINFO_FLG_FILTER;
1373				if (sdp->sd_flags & FLG_SY_NDIR)
1374					syminfo[ndx].si_flags |=
1375					    SYMINFO_FLG_NOEXTDIRECT;
1376
1377			} else if (sdp->sd_flags & FLG_SY_AUXFLTR) {
1378				/*
1379				 * An auxiliary filter definition.  By nature,
1380				 * this definition is direct, in that should the
1381				 * filtee lookup fail, we'll fall back to this
1382				 * object.  It may still be necessary to
1383				 * prevent external direct bindings.
1384				 */
1385				syminfo[ndx].si_flags |= SYMINFO_FLG_AUXILIARY;
1386				if (sdp->sd_flags & FLG_SY_NDIR)
1387					syminfo[ndx].si_flags |=
1388					    SYMINFO_FLG_NOEXTDIRECT;
1389
1390			} else if ((sdp->sd_ref == REF_REL_NEED) &&
1391			    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
1392				/*
1393				 * This definition exists within the object
1394				 * being created.  Provide a default boundto
1395				 * definition, which may be overridden later.
1396				 */
1397				syminfo[ndx].si_boundto = SYMINFO_BT_NONE;
1398
1399				/*
1400				 * Indicate whether it is necessary to prevent
1401				 * external direct bindings.
1402				 */
1403				if (sdp->sd_flags & FLG_SY_NDIR) {
1404					syminfo[ndx].si_flags |=
1405					    SYMINFO_FLG_NOEXTDIRECT;
1406				}
1407
1408				/*
1409				 * Indicate that this symbol is acting as an
1410				 * individual interposer.
1411				 */
1412				if (sdp->sd_flags & FLG_SY_INTPOSE) {
1413					syminfo[ndx].si_flags |=
1414					    SYMINFO_FLG_INTERPOSE;
1415				}
1416
1417				/*
1418				 * If external bindings are allowed, indicate
1419				 * the binding, and a direct binding if
1420				 * necessary.
1421				 */
1422				if ((sdp->sd_flags & FLG_SY_NDIR) == 0) {
1423					syminfo[ndx].si_flags |=
1424					    SYMINFO_FLG_DIRECT;
1425
1426					if (sdp->sd_flags & FLG_SY_DIR)
1427						syminfo[ndx].si_flags |=
1428						    SYMINFO_FLG_DIRECTBIND;
1429
1430					/*
1431					 * Provide a default boundto definition,
1432					 * which may be overridden later.
1433					 */
1434					syminfo[ndx].si_boundto =
1435					    SYMINFO_BT_SELF;
1436				}
1437
1438				/*
1439				 * Indicate that this is a capabilities symbol.
1440				 * Note, that this identification only provides
1441				 * information regarding the symbol that is
1442				 * visible from elfdump(1) -y.  The association
1443				 * of a symbol to its capabilities is derived
1444				 * from a .SUNW_capinfo entry.
1445				 */
1446				if ((sdp->sd_flags & FLG_SY_CAP) &&
1447				    ofl->ofl_oscapinfo) {
1448					syminfo[ndx].si_flags |=
1449					    SYMINFO_FLG_CAP;
1450				}
1451			}
1452		}
1453
1454		/*
1455		 * Note that the `sym' value is reset to be one of the new
1456		 * symbol table entries.  This symbol will be updated further
1457		 * depending on the type of the symbol.  Process the .symtab
1458		 * first, followed by the .dynsym, thus the `sym' value will
1459		 * remain as the .dynsym value when the .dynsym is present.
1460		 * This ensures that any versioning symbols st_name value will
1461		 * be appropriate for the string table used by version
1462		 * entries.
1463		 */
1464		if (enter_in_symtab) {
1465			Word	_symndx;
1466
1467			if (local)
1468				_symndx = scopesym_ndx;
1469			else
1470				_symndx = symtab_ndx;
1471
1472			symtab[_symndx] = *sdp->sd_sym;
1473			sdp->sd_sym = sym = &symtab[_symndx];
1474			(void) st_setstring(strtab, name, &stoff);
1475			sym->st_name = stoff;
1476		}
1477		if (dynlocal) {
1478			ldynsym[ldynscopesym_ndx] = *sdp->sd_sym;
1479			sdp->sd_sym = sym = &ldynsym[ldynscopesym_ndx];
1480			(void) st_setstring(dynstr, name, &stoff);
1481			ldynsym[ldynscopesym_ndx].st_name = stoff;
1482			/* Add it to sort section if it qualifies */
1483			ADD_TO_DYNSORT(sdp, sym, ELF_ST_TYPE(sym->st_info),
1484			    ldynscopesym_ndx);
1485		}
1486
1487		if (dynsym && !local) {
1488			dynsym[dynsym_ndx] = *sdp->sd_sym;
1489
1490			/*
1491			 * Provided this isn't an unnamed register symbol,
1492			 * update the symbols name and hash value.
1493			 */
1494			if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) ||
1495			    dynsym[dynsym_ndx].st_name) {
1496				(void) st_setstring(dynstr, name, &stoff);
1497				dynsym[dynsym_ndx].st_name = stoff;
1498
1499				if (stoff) {
1500					Word	hashval, _hashndx;
1501
1502					hashval =
1503					    sap->sa_hash % ofl->ofl_hashbkts;
1504
1505					/* LINTED */
1506					if (_hashndx = hashbkt[hashval]) {
1507						while (hashchain[_hashndx]) {
1508							_hashndx =
1509							    hashchain[_hashndx];
1510						}
1511						hashchain[_hashndx] =
1512						    sdp->sd_symndx;
1513					} else {
1514						hashbkt[hashval] =
1515						    sdp->sd_symndx;
1516					}
1517				}
1518			}
1519			sdp->sd_sym = sym = &dynsym[dynsym_ndx];
1520
1521			/*
1522			 * Add it to sort section if it qualifies.
1523			 * The indexes in that section are relative to the
1524			 * the adjacent SUNW_ldynsym/dymsym pair, so we
1525			 * add the number of items in SUNW_ldynsym to the
1526			 * dynsym index.
1527			 */
1528			ADD_TO_DYNSORT(sdp, sym, ELF_ST_TYPE(sym->st_info),
1529			    ldynsym_cnt + dynsym_ndx);
1530		}
1531
1532		if (!enter_in_symtab && (!dynsym || (local && !dynlocal))) {
1533			if (!(sdp->sd_flags & FLG_SY_UPREQD))
1534				continue;
1535			sym = sdp->sd_sym;
1536		} else
1537			sdp->sd_flags &= ~FLG_SY_CLEAN;
1538
1539		/*
1540		 * If we have a weak data symbol for which we need the real
1541		 * symbol also, save this processing until later.
1542		 *
1543		 * The exception to this is if the weak/strong have PLT's
1544		 * assigned to them.  In that case we don't do the post-weak
1545		 * processing because the PLT's must be maintained so that we
1546		 * can do 'interpositioning' on both of the symbols.
1547		 */
1548		if ((sap->sa_linkndx) &&
1549		    (ELF_ST_BIND(sym->st_info) == STB_WEAK) &&
1550		    (!sap->sa_PLTndx)) {
1551			Sym_desc	*_sdp;
1552
1553			_sdp = sdp->sd_file->ifl_oldndx[sap->sa_linkndx];
1554
1555			if (_sdp->sd_ref != REF_DYN_SEEN) {
1556				Wk_desc	wk;
1557
1558				if (enter_in_symtab) {
1559					if (local) {
1560						wk.wk_symtab =
1561						    &symtab[scopesym_ndx];
1562						scopesym_ndx++;
1563					} else {
1564						wk.wk_symtab =
1565						    &symtab[symtab_ndx];
1566						symtab_ndx++;
1567					}
1568				} else {
1569					wk.wk_symtab = NULL;
1570				}
1571				if (dynsym) {
1572					if (!local) {
1573						wk.wk_dynsym =
1574						    &dynsym[dynsym_ndx];
1575						dynsym_ndx++;
1576					} else if (dynlocal) {
1577						wk.wk_dynsym =
1578						    &ldynsym[ldynscopesym_ndx];
1579						ldynscopesym_ndx++;
1580					}
1581				} else {
1582					wk.wk_dynsym = NULL;
1583				}
1584				wk.wk_weak = sdp;
1585				wk.wk_alias = _sdp;
1586
1587				if (alist_append(&weak, &wk,
1588				    sizeof (Wk_desc), AL_CNT_WEAK) == NULL)
1589					return ((Addr)S_ERROR);
1590
1591				continue;
1592			}
1593		}
1594
1595		DBG_CALL(Dbg_syms_old(ofl, sdp));
1596
1597		spec = NULL;
1598		/*
1599		 * assign new symbol value.
1600		 */
1601		sectndx = sdp->sd_shndx;
1602		if (sectndx == SHN_UNDEF) {
1603			if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) &&
1604			    (sym->st_value != 0)) {
1605				eprintf(ofl->ofl_lml, ERR_WARNING,
1606				    MSG_INTL(MSG_SYM_NOTNULL),
1607				    demangle(name), sdp->sd_file->ifl_name);
1608			}
1609
1610			/*
1611			 * Undefined weak global, if we are generating a static
1612			 * executable, output as an absolute zero.  Otherwise
1613			 * leave it as is, ld.so.1 will skip symbols of this
1614			 * type (this technique allows applications and
1615			 * libraries to test for the existence of a symbol as an
1616			 * indication of the presence or absence of certain
1617			 * functionality).
1618			 */
1619			if (OFL_IS_STATIC_EXEC(ofl) &&
1620			    (ELF_ST_BIND(sym->st_info) == STB_WEAK)) {
1621				sdp->sd_flags |= FLG_SY_SPECSEC;
1622				sdp->sd_shndx = sectndx = SHN_ABS;
1623			}
1624		} else if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1625		    (sectndx == SHN_COMMON)) {
1626			/* COMMONs have already been processed */
1627			/* EMPTY */
1628			;
1629		} else {
1630			if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1631			    (sectndx == SHN_ABS))
1632				spec = sdp->sd_aux->sa_symspec;
1633
1634			/* LINTED */
1635			if (sdp->sd_flags & FLG_SY_COMMEXP) {
1636				/*
1637				 * This is (or was) a COMMON symbol which was
1638				 * processed above - no processing
1639				 * required here.
1640				 */
1641				;
1642			} else if (sdp->sd_ref == REF_DYN_NEED) {
1643				uchar_t	type, bind;
1644
1645				sectndx = SHN_UNDEF;
1646				sym->st_value = 0;
1647				sym->st_size = 0;
1648
1649				/*
1650				 * Make sure this undefined symbol is returned
1651				 * to the same binding as was defined in the
1652				 * original relocatable object reference.
1653				 */
1654				type = ELF_ST_TYPE(sym-> st_info);
1655				if (sdp->sd_flags & FLG_SY_GLOBREF)
1656					bind = STB_GLOBAL;
1657				else
1658					bind = STB_WEAK;
1659
1660				sym->st_info = ELF_ST_INFO(bind, type);
1661
1662			} else if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1663			    (sdp->sd_ref == REF_REL_NEED)) {
1664				osp = sdp->sd_isc->is_osdesc;
1665				/* LINTED */
1666				sectndx = elf_ndxscn(osp->os_scn);
1667
1668				/*
1669				 * In an executable, the new symbol value is the
1670				 * old value (offset into defining section) plus
1671				 * virtual address of defining section.  In a
1672				 * relocatable, the new value is the old value
1673				 * plus the displacement of the section within
1674				 * the file.
1675				 */
1676				/* LINTED */
1677				sym->st_value +=
1678				    (Off)_elf_getxoff(sdp->sd_isc->is_indata);
1679
1680				if (!(flags & FLG_OF_RELOBJ)) {
1681					sym->st_value += osp->os_shdr->sh_addr;
1682					/*
1683					 * TLS symbols are relative to
1684					 * the TLS segment.
1685					 */
1686					if ((ELF_ST_TYPE(sym->st_info) ==
1687					    STT_TLS) && (ofl->ofl_tlsphdr))
1688						sym->st_value -=
1689						    ofl->ofl_tlsphdr->p_vaddr;
1690				}
1691			}
1692		}
1693
1694		if (spec) {
1695			switch (spec) {
1696			case SDAUX_ID_ETEXT:
1697				sym->st_value = etext;
1698				sectndx = etext_ndx;
1699				if (etext_abs)
1700					sdp->sd_flags |= FLG_SY_SPECSEC;
1701				else
1702					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1703				break;
1704			case SDAUX_ID_EDATA:
1705				sym->st_value = edata;
1706				sectndx = edata_ndx;
1707				if (edata_abs)
1708					sdp->sd_flags |= FLG_SY_SPECSEC;
1709				else
1710					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1711				break;
1712			case SDAUX_ID_END:
1713				sym->st_value = end;
1714				sectndx = end_ndx;
1715				if (end_abs)
1716					sdp->sd_flags |= FLG_SY_SPECSEC;
1717				else
1718					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1719				break;
1720			case SDAUX_ID_START:
1721				sym->st_value = start;
1722				sectndx = start_ndx;
1723				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1724				break;
1725			case SDAUX_ID_DYN:
1726				if (flags & FLG_OF_DYNAMIC) {
1727					sym->st_value = ofl->
1728					    ofl_osdynamic->os_shdr->sh_addr;
1729					/* LINTED */
1730					sectndx = elf_ndxscn(
1731					    ofl->ofl_osdynamic->os_scn);
1732					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1733				}
1734				break;
1735			case SDAUX_ID_PLT:
1736				if (ofl->ofl_osplt) {
1737					sym->st_value = ofl->
1738					    ofl_osplt->os_shdr->sh_addr;
1739					/* LINTED */
1740					sectndx = elf_ndxscn(
1741					    ofl->ofl_osplt->os_scn);
1742					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1743				}
1744				break;
1745			case SDAUX_ID_GOT:
1746				/*
1747				 * Symbol bias for negative growing tables is
1748				 * stored in symbol's value during
1749				 * allocate_got().
1750				 */
1751				sym->st_value += ofl->
1752				    ofl_osgot->os_shdr->sh_addr;
1753				/* LINTED */
1754				sectndx = elf_ndxscn(ofl->
1755				    ofl_osgot->os_scn);
1756				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1757				break;
1758			default:
1759				/* NOTHING */
1760				;
1761			}
1762		}
1763
1764		/*
1765		 * If a plt index has been assigned to an undefined function,
1766		 * update the symbols value to the appropriate .plt address.
1767		 */
1768		if ((flags & FLG_OF_DYNAMIC) && (flags & FLG_OF_EXEC) &&
1769		    (sdp->sd_file) &&
1770		    (sdp->sd_file->ifl_ehdr->e_type == ET_DYN) &&
1771		    (ELF_ST_TYPE(sym->st_info) == STT_FUNC) &&
1772		    !(flags & FLG_OF_BFLAG)) {
1773			if (sap->sa_PLTndx)
1774				sym->st_value =
1775				    (*ld_targ.t_mr.mr_calc_plt_addr)(sdp, ofl);
1776		}
1777
1778		/*
1779		 * Finish updating the symbols.
1780		 */
1781
1782		/*
1783		 * Sym Update: if scoped local - set local binding
1784		 */
1785		if (local)
1786			sym->st_info = ELF_ST_INFO(STB_LOCAL,
1787			    ELF_ST_TYPE(sym->st_info));
1788
1789		/*
1790		 * Sym Updated: If both the .symtab and .dynsym
1791		 * are present then we've actually updated the information in
1792		 * the .dynsym, therefore copy this same information to the
1793		 * .symtab entry.
1794		 */
1795		sdp->sd_shndx = sectndx;
1796		if (enter_in_symtab && dynsym && (!local || dynlocal)) {
1797			Word _symndx = dynlocal ? scopesym_ndx : symtab_ndx;
1798
1799			symtab[_symndx].st_value = sym->st_value;
1800			symtab[_symndx].st_size = sym->st_size;
1801			symtab[_symndx].st_info = sym->st_info;
1802			symtab[_symndx].st_other = sym->st_other;
1803		}
1804
1805		if (enter_in_symtab) {
1806			Word	_symndx;
1807
1808			if (local)
1809				_symndx = scopesym_ndx++;
1810			else
1811				_symndx = symtab_ndx++;
1812			if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1813			    (sectndx >= SHN_LORESERVE)) {
1814				assert(symshndx != NULL);
1815				symshndx[_symndx] = sectndx;
1816				symtab[_symndx].st_shndx = SHN_XINDEX;
1817			} else {
1818				/* LINTED */
1819				symtab[_symndx].st_shndx = (Half)sectndx;
1820			}
1821		}
1822
1823		if (dynsym && (!local || dynlocal)) {
1824			/*
1825			 * dynsym and ldynsym are distinct tables, so
1826			 * we use indirection to access the right one
1827			 * and the related extended section index array.
1828			 */
1829			Word	_symndx;
1830			Sym	*_dynsym;
1831			Word	*_dynshndx;
1832
1833			if (!local) {
1834				_symndx = dynsym_ndx++;
1835				_dynsym = dynsym;
1836				_dynshndx = dynshndx;
1837			} else {
1838				_symndx = ldynscopesym_ndx++;
1839				_dynsym = ldynsym;
1840				_dynshndx = ldynshndx;
1841			}
1842			if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1843			    (sectndx >= SHN_LORESERVE)) {
1844				assert(_dynshndx != NULL);
1845				_dynshndx[_symndx] = sectndx;
1846				_dynsym[_symndx].st_shndx = SHN_XINDEX;
1847			} else {
1848				/* LINTED */
1849				_dynsym[_symndx].st_shndx = (Half)sectndx;
1850			}
1851		}
1852
1853		DBG_CALL(Dbg_syms_new(ofl, sym, sdp));
1854	}
1855
1856	/*
1857	 * Now that all the symbols have been processed update any weak symbols
1858	 * information (ie. copy all information except `st_name').  As both
1859	 * symbols will be represented in the output, return the weak symbol to
1860	 * its correct type.
1861	 */
1862	for (ALIST_TRAVERSE(weak, idx1, wkp)) {
1863		Sym_desc	*sdp, *_sdp;
1864		Sym		*sym, *_sym, *__sym;
1865		uchar_t		bind;
1866
1867		sdp = wkp->wk_weak;
1868		_sdp = wkp->wk_alias;
1869		_sym = __sym = _sdp->sd_sym;
1870
1871		sdp->sd_flags |= FLG_SY_WEAKDEF;
1872
1873		/*
1874		 * If the symbol definition has been scoped then assign it to
1875		 * be local, otherwise if it's from a shared object then we need
1876		 * to maintain the binding of the original reference.
1877		 */
1878		if (SYM_IS_HIDDEN(sdp)) {
1879			if (flags & FLG_OF_PROCRED)
1880				bind = STB_LOCAL;
1881			else
1882				bind = STB_WEAK;
1883		} else if ((sdp->sd_ref == REF_DYN_NEED) &&
1884		    (sdp->sd_flags & FLG_SY_GLOBREF))
1885			bind = STB_GLOBAL;
1886		else
1887			bind = STB_WEAK;
1888
1889		DBG_CALL(Dbg_syms_old(ofl, sdp));
1890		if ((sym = wkp->wk_symtab) != NULL) {
1891			sym->st_value = _sym->st_value;
1892			sym->st_size = _sym->st_size;
1893			sym->st_other = _sym->st_other;
1894			sym->st_shndx = _sym->st_shndx;
1895			sym->st_info = ELF_ST_INFO(bind,
1896			    ELF_ST_TYPE(sym->st_info));
1897			__sym = sym;
1898		}
1899		if ((sym = wkp->wk_dynsym) != NULL) {
1900			sym->st_value = _sym->st_value;
1901			sym->st_size = _sym->st_size;
1902			sym->st_other = _sym->st_other;
1903			sym->st_shndx = _sym->st_shndx;
1904			sym->st_info = ELF_ST_INFO(bind,
1905			    ELF_ST_TYPE(sym->st_info));
1906			__sym = sym;
1907		}
1908		DBG_CALL(Dbg_syms_new(ofl, __sym, sdp));
1909	}
1910
1911	/*
1912	 * Now display GOT debugging information if required.
1913	 */
1914	DBG_CALL(Dbg_got_display(ofl, 0, 0,
1915	    ld_targ.t_m.m_got_xnumber, ld_targ.t_m.m_got_entsize));
1916
1917	/*
1918	 * Update the section headers information. sh_info is
1919	 * supposed to contain the offset at which the first
1920	 * global symbol resides in the symbol table, while
1921	 * sh_link contains the section index of the associated
1922	 * string table.
1923	 */
1924	if (symtab) {
1925		Shdr	*shdr = ofl->ofl_ossymtab->os_shdr;
1926
1927		shdr->sh_info = symtab_gbl_bndx;
1928		/* LINTED */
1929		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osstrtab->os_scn);
1930		if (symshndx)
1931			ofl->ofl_ossymshndx->os_shdr->sh_link =
1932			    (Word)elf_ndxscn(ofl->ofl_ossymtab->os_scn);
1933
1934		/*
1935		 * Ensure that the expected number of symbols
1936		 * were entered into the right spots:
1937		 *	- Scoped symbols in the right range
1938		 *	- Globals start at the right spot
1939		 *		(correct number of locals entered)
1940		 *	- The table is exactly filled
1941		 *		(correct number of globals entered)
1942		 */
1943		assert((scopesym_bndx + ofl->ofl_scopecnt) == scopesym_ndx);
1944		assert(shdr->sh_info == SYMTAB_LOC_CNT(ofl));
1945		assert((shdr->sh_info + ofl->ofl_globcnt) == symtab_ndx);
1946	}
1947	if (dynsym) {
1948		Shdr	*shdr = ofl->ofl_osdynsym->os_shdr;
1949
1950		shdr->sh_info = DYNSYM_LOC_CNT(ofl);
1951		/* LINTED */
1952		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
1953
1954		ofl->ofl_oshash->os_shdr->sh_link =
1955		    /* LINTED */
1956		    (Word)elf_ndxscn(ofl->ofl_osdynsym->os_scn);
1957		if (dynshndx) {
1958			shdr = ofl->ofl_osdynshndx->os_shdr;
1959			shdr->sh_link =
1960			    (Word)elf_ndxscn(ofl->ofl_osdynsym->os_scn);
1961		}
1962	}
1963	if (ldynsym) {
1964		Shdr	*shdr = ofl->ofl_osldynsym->os_shdr;
1965
1966		/* ldynsym has no globals, so give index one past the end */
1967		shdr->sh_info = ldynsym_ndx;
1968
1969		/*
1970		 * The ldynsym and dynsym must be adjacent. The
1971		 * idea is that rtld should be able to start with
1972		 * the ldynsym and march straight through the end
1973		 * of dynsym, seeing them as a single symbol table,
1974		 * despite the fact that they are in distinct sections.
1975		 * Ensure that this happened correctly.
1976		 *
1977		 * Note that I use ldynsym_ndx here instead of the
1978		 * computation I used to set the section size
1979		 * (found in ldynsym_cnt). The two will agree, unless
1980		 * we somehow miscounted symbols or failed to insert them
1981		 * all. Using ldynsym_ndx here catches that error in
1982		 * addition to checking for adjacency.
1983		 */
1984		assert(dynsym == (ldynsym + ldynsym_ndx));
1985
1986
1987		/* LINTED */
1988		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
1989
1990		if (ldynshndx) {
1991			shdr = ofl->ofl_osldynshndx->os_shdr;
1992			shdr->sh_link =
1993			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
1994		}
1995
1996		/*
1997		 * The presence of .SUNW_ldynsym means that there may be
1998		 * associated sort sections, one for regular symbols
1999		 * and the other for TLS. Each sort section needs the
2000		 * following done:
2001		 *	- Section header link references .SUNW_ldynsym
2002		 *	- Should have received the expected # of items
2003		 *	- Sorted by increasing address
2004		 */
2005		if (ofl->ofl_osdynsymsort) {	/* .SUNW_dynsymsort */
2006			ofl->ofl_osdynsymsort->os_shdr->sh_link =
2007			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
2008			assert(ofl->ofl_dynsymsortcnt == dynsymsort_ndx);
2009
2010			if (dynsymsort_ndx > 1) {
2011				dynsort_compare_syms = ldynsym;
2012				qsort(dynsymsort, dynsymsort_ndx,
2013				    sizeof (*dynsymsort), dynsort_compare);
2014				dynsort_dupwarn(ofl, ldynsym,
2015				    st_getstrbuf(dynstr),
2016				    dynsymsort, dynsymsort_ndx,
2017				    MSG_ORIG(MSG_SCN_DYNSYMSORT));
2018			}
2019		}
2020		if (ofl->ofl_osdyntlssort) {	/* .SUNW_dyntlssort */
2021			ofl->ofl_osdyntlssort->os_shdr->sh_link =
2022			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
2023			assert(ofl->ofl_dyntlssortcnt == dyntlssort_ndx);
2024
2025			if (dyntlssort_ndx > 1) {
2026				dynsort_compare_syms = ldynsym;
2027				qsort(dyntlssort, dyntlssort_ndx,
2028				    sizeof (*dyntlssort), dynsort_compare);
2029				dynsort_dupwarn(ofl, ldynsym,
2030				    st_getstrbuf(dynstr),
2031				    dyntlssort, dyntlssort_ndx,
2032				    MSG_ORIG(MSG_SCN_DYNTLSSORT));
2033			}
2034		}
2035	}
2036
2037	/*
2038	 * Used by ld.so.1 only.
2039	 */
2040	return (etext);
2041
2042#undef ADD_TO_DYNSORT
2043}
2044
2045/*
2046 * Build the dynamic section.
2047 *
2048 * This routine must be maintained in parallel with make_dynamic()
2049 * in sections.c
2050 */
2051static int
2052update_odynamic(Ofl_desc *ofl)
2053{
2054	Aliste		idx;
2055	Ifl_desc	*ifl;
2056	Sym_desc	*sdp;
2057	Shdr		*shdr;
2058	Dyn		*_dyn = (Dyn *)ofl->ofl_osdynamic->os_outdata->d_buf;
2059	Dyn		*dyn;
2060	Os_desc		*symosp, *strosp;
2061	Str_tbl		*strtbl;
2062	size_t		stoff;
2063	ofl_flag_t	flags = ofl->ofl_flags;
2064	int		not_relobj = !(flags & FLG_OF_RELOBJ);
2065	Word		cnt;
2066
2067	/*
2068	 * Relocatable objects can be built with -r and -dy to trigger the
2069	 * creation of a .dynamic section.  This model is used to create kernel
2070	 * device drivers.  The .dynamic section provides a subset of userland
2071	 * .dynamic entries, typically entries such as DT_NEEDED and DT_RUNPATH.
2072	 *
2073	 * Within a dynamic object, any .dynamic string references are to the
2074	 * .dynstr table.  Within a relocatable object, these strings can reside
2075	 * within the .strtab.
2076	 */
2077	if (OFL_IS_STATIC_OBJ(ofl)) {
2078		symosp = ofl->ofl_ossymtab;
2079		strosp = ofl->ofl_osstrtab;
2080		strtbl = ofl->ofl_strtab;
2081	} else {
2082		symosp = ofl->ofl_osdynsym;
2083		strosp = ofl->ofl_osdynstr;
2084		strtbl = ofl->ofl_dynstrtab;
2085	}
2086
2087	/* LINTED */
2088	ofl->ofl_osdynamic->os_shdr->sh_link = (Word)elf_ndxscn(strosp->os_scn);
2089
2090	dyn = _dyn;
2091
2092	for (APLIST_TRAVERSE(ofl->ofl_sos, idx, ifl)) {
2093		if ((ifl->ifl_flags &
2094		    (FLG_IF_IGNORE | FLG_IF_DEPREQD)) == FLG_IF_IGNORE)
2095			continue;
2096
2097		/*
2098		 * Create and set up the DT_POSFLAG_1 entry here if required.
2099		 */
2100		if ((ifl->ifl_flags & (FLG_IF_LAZYLD|FLG_IF_GRPPRM)) &&
2101		    (ifl->ifl_flags & (FLG_IF_NEEDED)) && not_relobj) {
2102			dyn->d_tag = DT_POSFLAG_1;
2103			if (ifl->ifl_flags & FLG_IF_LAZYLD)
2104				dyn->d_un.d_val = DF_P1_LAZYLOAD;
2105			if (ifl->ifl_flags & FLG_IF_GRPPRM)
2106				dyn->d_un.d_val |= DF_P1_GROUPPERM;
2107			dyn++;
2108		}
2109
2110		if (ifl->ifl_flags & (FLG_IF_NEEDED | FLG_IF_NEEDSTR))
2111			dyn->d_tag = DT_NEEDED;
2112		else
2113			continue;
2114
2115		(void) st_setstring(strtbl, ifl->ifl_soname, &stoff);
2116		dyn->d_un.d_val = stoff;
2117		/* LINTED */
2118		ifl->ifl_neededndx = (Half)(((uintptr_t)dyn - (uintptr_t)_dyn) /
2119		    sizeof (Dyn));
2120		dyn++;
2121	}
2122
2123	if (not_relobj) {
2124		if (ofl->ofl_dtsfltrs != NULL) {
2125			Dfltr_desc	*dftp;
2126
2127			for (ALIST_TRAVERSE(ofl->ofl_dtsfltrs, idx, dftp)) {
2128				if (dftp->dft_flag == FLG_SY_AUXFLTR)
2129					dyn->d_tag = DT_SUNW_AUXILIARY;
2130				else
2131					dyn->d_tag = DT_SUNW_FILTER;
2132
2133				(void) st_setstring(strtbl, dftp->dft_str,
2134				    &stoff);
2135				dyn->d_un.d_val = stoff;
2136				dftp->dft_ndx = (Half)(((uintptr_t)dyn -
2137				    (uintptr_t)_dyn) / sizeof (Dyn));
2138				dyn++;
2139			}
2140		}
2141		if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_INIT_U),
2142		    SYM_NOHASH, 0, ofl)) != NULL) &&
2143		    (sdp->sd_ref == REF_REL_NEED) &&
2144		    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
2145			dyn->d_tag = DT_INIT;
2146			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2147			dyn++;
2148		}
2149		if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_FINI_U),
2150		    SYM_NOHASH, 0, ofl)) != NULL) &&
2151		    (sdp->sd_ref == REF_REL_NEED) &&
2152		    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
2153			dyn->d_tag = DT_FINI;
2154			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2155			dyn++;
2156		}
2157		if (ofl->ofl_soname) {
2158			dyn->d_tag = DT_SONAME;
2159			(void) st_setstring(strtbl, ofl->ofl_soname, &stoff);
2160			dyn->d_un.d_val = stoff;
2161			dyn++;
2162		}
2163		if (ofl->ofl_filtees) {
2164			if (flags & FLG_OF_AUX) {
2165				dyn->d_tag = DT_AUXILIARY;
2166			} else {
2167				dyn->d_tag = DT_FILTER;
2168			}
2169			(void) st_setstring(strtbl, ofl->ofl_filtees, &stoff);
2170			dyn->d_un.d_val = stoff;
2171			dyn++;
2172		}
2173	}
2174
2175	if (ofl->ofl_rpath) {
2176		(void) st_setstring(strtbl, ofl->ofl_rpath, &stoff);
2177		dyn->d_tag = DT_RUNPATH;
2178		dyn->d_un.d_val = stoff;
2179		dyn++;
2180		dyn->d_tag = DT_RPATH;
2181		dyn->d_un.d_val = stoff;
2182		dyn++;
2183	}
2184
2185	if (not_relobj) {
2186		Aliste	idx;
2187
2188		if (ofl->ofl_config) {
2189			dyn->d_tag = DT_CONFIG;
2190			(void) st_setstring(strtbl, ofl->ofl_config, &stoff);
2191			dyn->d_un.d_val = stoff;
2192			dyn++;
2193		}
2194		if (ofl->ofl_depaudit) {
2195			dyn->d_tag = DT_DEPAUDIT;
2196			(void) st_setstring(strtbl, ofl->ofl_depaudit, &stoff);
2197			dyn->d_un.d_val = stoff;
2198			dyn++;
2199		}
2200		if (ofl->ofl_audit) {
2201			dyn->d_tag = DT_AUDIT;
2202			(void) st_setstring(strtbl, ofl->ofl_audit, &stoff);
2203			dyn->d_un.d_val = stoff;
2204			dyn++;
2205		}
2206
2207		dyn->d_tag = DT_HASH;
2208		dyn->d_un.d_ptr = ofl->ofl_oshash->os_shdr->sh_addr;
2209		dyn++;
2210
2211		shdr = strosp->os_shdr;
2212		dyn->d_tag = DT_STRTAB;
2213		dyn->d_un.d_ptr = shdr->sh_addr;
2214		dyn++;
2215
2216		dyn->d_tag = DT_STRSZ;
2217		dyn->d_un.d_ptr = shdr->sh_size;
2218		dyn++;
2219
2220		/*
2221		 * Note, the shdr is set and used in the ofl->ofl_osldynsym case
2222		 * that follows.
2223		 */
2224		shdr = symosp->os_shdr;
2225		dyn->d_tag = DT_SYMTAB;
2226		dyn->d_un.d_ptr = shdr->sh_addr;
2227		dyn++;
2228
2229		dyn->d_tag = DT_SYMENT;
2230		dyn->d_un.d_ptr = shdr->sh_entsize;
2231		dyn++;
2232
2233		if (ofl->ofl_osldynsym) {
2234			Shdr	*lshdr = ofl->ofl_osldynsym->os_shdr;
2235
2236			/*
2237			 * We have arranged for the .SUNW_ldynsym data to be
2238			 * immediately in front of the .dynsym data.
2239			 * This means that you could start at the top
2240			 * of .SUNW_ldynsym and see the data for both tables
2241			 * without a break. This is the view we want to
2242			 * provide for DT_SUNW_SYMTAB, which is why we
2243			 * add the lengths together.
2244			 */
2245			dyn->d_tag = DT_SUNW_SYMTAB;
2246			dyn->d_un.d_ptr = lshdr->sh_addr;
2247			dyn++;
2248
2249			dyn->d_tag = DT_SUNW_SYMSZ;
2250			dyn->d_un.d_val = lshdr->sh_size + shdr->sh_size;
2251			dyn++;
2252		}
2253
2254		if (ofl->ofl_osdynsymsort || ofl->ofl_osdyntlssort) {
2255			dyn->d_tag = DT_SUNW_SORTENT;
2256			dyn->d_un.d_val = sizeof (Word);
2257			dyn++;
2258		}
2259
2260		if (ofl->ofl_osdynsymsort) {
2261			shdr = ofl->ofl_osdynsymsort->os_shdr;
2262
2263			dyn->d_tag = DT_SUNW_SYMSORT;
2264			dyn->d_un.d_ptr = shdr->sh_addr;
2265			dyn++;
2266
2267			dyn->d_tag = DT_SUNW_SYMSORTSZ;
2268			dyn->d_un.d_val = shdr->sh_size;
2269			dyn++;
2270		}
2271
2272		if (ofl->ofl_osdyntlssort) {
2273			shdr = ofl->ofl_osdyntlssort->os_shdr;
2274
2275			dyn->d_tag = DT_SUNW_TLSSORT;
2276			dyn->d_un.d_ptr = shdr->sh_addr;
2277			dyn++;
2278
2279			dyn->d_tag = DT_SUNW_TLSSORTSZ;
2280			dyn->d_un.d_val = shdr->sh_size;
2281			dyn++;
2282		}
2283
2284		/*
2285		 * Reserve the DT_CHECKSUM entry.  Its value will be filled in
2286		 * after the complete image is built.
2287		 */
2288		dyn->d_tag = DT_CHECKSUM;
2289		ofl->ofl_checksum = &dyn->d_un.d_val;
2290		dyn++;
2291
2292		/*
2293		 * Versioning sections: DT_VERDEF and DT_VERNEED.
2294		 *
2295		 * The Solaris ld does not produce DT_VERSYM, but the GNU ld
2296		 * does, in order to support their style of versioning, which
2297		 * differs from ours:
2298		 *
2299		 *	- The top bit of the 16-bit Versym index is
2300		 *		not part of the version, but is interpreted
2301		 *		as a "hidden bit".
2302		 *
2303		 *	- External (SHN_UNDEF) symbols can have non-zero
2304		 *		Versym values, which specify versions in
2305		 *		referenced objects, via the Verneed section.
2306		 *
2307		 *	- The vna_other field of the Vernaux structures
2308		 *		found in the Verneed section are not zero as
2309		 *		with Solaris, but instead contain the version
2310		 *		index to be used by Versym indices to reference
2311		 *		the given external version.
2312		 *
2313		 * The Solaris ld, rtld, and elfdump programs all interpret the
2314		 * presence of DT_VERSYM as meaning that GNU versioning rules
2315		 * apply to the given file. If DT_VERSYM is not present,
2316		 * then Solaris versioning rules apply. If we should ever need
2317		 * to change our ld so that it does issue DT_VERSYM, then
2318		 * this rule for detecting GNU versioning will no longer work.
2319		 * In that case, we will have to invent a way to explicitly
2320		 * specify the style of versioning in use, perhaps via a
2321		 * new dynamic entry named something like DT_SUNW_VERSIONSTYLE,
2322		 * where the d_un.d_val value specifies which style is to be
2323		 * used.
2324		 */
2325		if ((flags & (FLG_OF_VERDEF | FLG_OF_NOVERSEC)) ==
2326		    FLG_OF_VERDEF) {
2327			shdr = ofl->ofl_osverdef->os_shdr;
2328
2329			dyn->d_tag = DT_VERDEF;
2330			dyn->d_un.d_ptr = shdr->sh_addr;
2331			dyn++;
2332			dyn->d_tag = DT_VERDEFNUM;
2333			dyn->d_un.d_ptr = shdr->sh_info;
2334			dyn++;
2335		}
2336		if ((flags & (FLG_OF_VERNEED | FLG_OF_NOVERSEC)) ==
2337		    FLG_OF_VERNEED) {
2338			shdr = ofl->ofl_osverneed->os_shdr;
2339
2340			dyn->d_tag = DT_VERNEED;
2341			dyn->d_un.d_ptr = shdr->sh_addr;
2342			dyn++;
2343			dyn->d_tag = DT_VERNEEDNUM;
2344			dyn->d_un.d_ptr = shdr->sh_info;
2345			dyn++;
2346		}
2347
2348		if ((flags & FLG_OF_COMREL) && ofl->ofl_relocrelcnt) {
2349			dyn->d_tag = ld_targ.t_m.m_rel_dt_count;
2350			dyn->d_un.d_val = ofl->ofl_relocrelcnt;
2351			dyn++;
2352		}
2353		if (flags & FLG_OF_TEXTREL) {
2354			/*
2355			 * Only the presence of this entry is used in this
2356			 * implementation, not the value stored.
2357			 */
2358			dyn->d_tag = DT_TEXTREL;
2359			dyn->d_un.d_val = 0;
2360			dyn++;
2361		}
2362
2363		if (ofl->ofl_osfiniarray) {
2364			shdr = ofl->ofl_osfiniarray->os_shdr;
2365
2366			dyn->d_tag = DT_FINI_ARRAY;
2367			dyn->d_un.d_ptr = shdr->sh_addr;
2368			dyn++;
2369
2370			dyn->d_tag = DT_FINI_ARRAYSZ;
2371			dyn->d_un.d_val = shdr->sh_size;
2372			dyn++;
2373		}
2374
2375		if (ofl->ofl_osinitarray) {
2376			shdr = ofl->ofl_osinitarray->os_shdr;
2377
2378			dyn->d_tag = DT_INIT_ARRAY;
2379			dyn->d_un.d_ptr = shdr->sh_addr;
2380			dyn++;
2381
2382			dyn->d_tag = DT_INIT_ARRAYSZ;
2383			dyn->d_un.d_val = shdr->sh_size;
2384			dyn++;
2385		}
2386
2387		if (ofl->ofl_ospreinitarray) {
2388			shdr = ofl->ofl_ospreinitarray->os_shdr;
2389
2390			dyn->d_tag = DT_PREINIT_ARRAY;
2391			dyn->d_un.d_ptr = shdr->sh_addr;
2392			dyn++;
2393
2394			dyn->d_tag = DT_PREINIT_ARRAYSZ;
2395			dyn->d_un.d_val = shdr->sh_size;
2396			dyn++;
2397		}
2398
2399		if (ofl->ofl_pltcnt) {
2400			shdr = ofl->ofl_osplt->os_relosdesc->os_shdr;
2401
2402			dyn->d_tag = DT_PLTRELSZ;
2403			dyn->d_un.d_ptr = shdr->sh_size;
2404			dyn++;
2405			dyn->d_tag = DT_PLTREL;
2406			dyn->d_un.d_ptr = ld_targ.t_m.m_rel_dt_type;
2407			dyn++;
2408			dyn->d_tag = DT_JMPREL;
2409			dyn->d_un.d_ptr = shdr->sh_addr;
2410			dyn++;
2411		}
2412		if (ofl->ofl_pltpad) {
2413			shdr = ofl->ofl_osplt->os_shdr;
2414
2415			dyn->d_tag = DT_PLTPAD;
2416			if (ofl->ofl_pltcnt) {
2417				dyn->d_un.d_ptr = shdr->sh_addr +
2418				    ld_targ.t_m.m_plt_reservsz +
2419				    ofl->ofl_pltcnt * ld_targ.t_m.m_plt_entsize;
2420			} else
2421				dyn->d_un.d_ptr = shdr->sh_addr;
2422			dyn++;
2423			dyn->d_tag = DT_PLTPADSZ;
2424			dyn->d_un.d_val = ofl->ofl_pltpad *
2425			    ld_targ.t_m.m_plt_entsize;
2426			dyn++;
2427		}
2428		if (ofl->ofl_relocsz) {
2429			shdr = ofl->ofl_osrelhead->os_shdr;
2430
2431			dyn->d_tag = ld_targ.t_m.m_rel_dt_type;
2432			dyn->d_un.d_ptr = shdr->sh_addr;
2433			dyn++;
2434			dyn->d_tag = ld_targ.t_m.m_rel_dt_size;
2435			dyn->d_un.d_ptr = ofl->ofl_relocsz;
2436			dyn++;
2437			dyn->d_tag = ld_targ.t_m.m_rel_dt_ent;
2438			if (shdr->sh_type == SHT_REL)
2439				dyn->d_un.d_ptr = sizeof (Rel);
2440			else
2441				dyn->d_un.d_ptr = sizeof (Rela);
2442			dyn++;
2443		}
2444		if (ofl->ofl_ossyminfo) {
2445			shdr = ofl->ofl_ossyminfo->os_shdr;
2446
2447			dyn->d_tag = DT_SYMINFO;
2448			dyn->d_un.d_ptr = shdr->sh_addr;
2449			dyn++;
2450			dyn->d_tag = DT_SYMINSZ;
2451			dyn->d_un.d_val = shdr->sh_size;
2452			dyn++;
2453			dyn->d_tag = DT_SYMINENT;
2454			dyn->d_un.d_val = sizeof (Syminfo);
2455			dyn++;
2456		}
2457		if (ofl->ofl_osmove) {
2458			shdr = ofl->ofl_osmove->os_shdr;
2459
2460			dyn->d_tag = DT_MOVETAB;
2461			dyn->d_un.d_val = shdr->sh_addr;
2462			dyn++;
2463			dyn->d_tag = DT_MOVESZ;
2464			dyn->d_un.d_val = shdr->sh_size;
2465			dyn++;
2466			dyn->d_tag = DT_MOVEENT;
2467			dyn->d_un.d_val = shdr->sh_entsize;
2468			dyn++;
2469		}
2470		if (ofl->ofl_regsymcnt) {
2471			int	ndx;
2472
2473			for (ndx = 0; ndx < ofl->ofl_regsymsno; ndx++) {
2474				if ((sdp = ofl->ofl_regsyms[ndx]) == NULL)
2475					continue;
2476
2477				dyn->d_tag = ld_targ.t_m.m_dt_register;
2478				dyn->d_un.d_val = sdp->sd_symndx;
2479				dyn++;
2480			}
2481		}
2482
2483		for (APLIST_TRAVERSE(ofl->ofl_rtldinfo, idx, sdp)) {
2484			dyn->d_tag = DT_SUNW_RTLDINF;
2485			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2486			dyn++;
2487		}
2488
2489		if (ofl->ofl_osdynamic->os_sgdesc &&
2490		    (ofl->ofl_osdynamic->os_sgdesc->sg_phdr.p_flags & PF_W)) {
2491			if (ofl->ofl_osinterp) {
2492				dyn->d_tag = DT_DEBUG;
2493				dyn->d_un.d_ptr = 0;
2494				dyn++;
2495			}
2496
2497			dyn->d_tag = DT_FEATURE_1;
2498			if (ofl->ofl_osmove)
2499				dyn->d_un.d_val = 0;
2500			else
2501				dyn->d_un.d_val = DTF_1_PARINIT;
2502			dyn++;
2503		}
2504
2505		if (ofl->ofl_oscap) {
2506			dyn->d_tag = DT_SUNW_CAP;
2507			dyn->d_un.d_val = ofl->ofl_oscap->os_shdr->sh_addr;
2508			dyn++;
2509		}
2510		if (ofl->ofl_oscapinfo) {
2511			dyn->d_tag = DT_SUNW_CAPINFO;
2512			dyn->d_un.d_val = ofl->ofl_oscapinfo->os_shdr->sh_addr;
2513			dyn++;
2514		}
2515		if (ofl->ofl_oscapchain) {
2516			shdr = ofl->ofl_oscapchain->os_shdr;
2517
2518			dyn->d_tag = DT_SUNW_CAPCHAIN;
2519			dyn->d_un.d_val = shdr->sh_addr;
2520			dyn++;
2521			dyn->d_tag = DT_SUNW_CAPCHAINSZ;
2522			dyn->d_un.d_val = shdr->sh_size;
2523			dyn++;
2524			dyn->d_tag = DT_SUNW_CAPCHAINENT;
2525			dyn->d_un.d_val = shdr->sh_entsize;
2526			dyn++;
2527		}
2528		if (flags & FLG_OF_SYMBOLIC) {
2529			dyn->d_tag = DT_SYMBOLIC;
2530			dyn->d_un.d_val = 0;
2531			dyn++;
2532		}
2533	}
2534
2535	dyn->d_tag = DT_FLAGS;
2536	dyn->d_un.d_val = ofl->ofl_dtflags;
2537	dyn++;
2538
2539	/*
2540	 * If -Bdirect was specified, but some NODIRECT symbols were specified
2541	 * via a mapfile, or -znodirect was used on the command line, then
2542	 * clear the DF_1_DIRECT flag.  The resultant object will use per-symbol
2543	 * direct bindings rather than be enabled for global direct bindings.
2544	 *
2545	 * If any no-direct bindings exist within this object, set the
2546	 * DF_1_NODIRECT flag.  ld(1) recognizes this flag when processing
2547	 * dependencies, and performs extra work to ensure that no direct
2548	 * bindings are established to the no-direct symbols that exist
2549	 * within these dependencies.
2550	 */
2551	if (ofl->ofl_flags1 & FLG_OF1_NGLBDIR)
2552		ofl->ofl_dtflags_1 &= ~DF_1_DIRECT;
2553	if (ofl->ofl_flags1 & FLG_OF1_NDIRECT)
2554		ofl->ofl_dtflags_1 |= DF_1_NODIRECT;
2555
2556	dyn->d_tag = DT_FLAGS_1;
2557	dyn->d_un.d_val = ofl->ofl_dtflags_1;
2558	dyn++;
2559
2560	dyn->d_tag = DT_SUNW_STRPAD;
2561	dyn->d_un.d_val = DYNSTR_EXTRA_PAD;
2562	dyn++;
2563
2564	dyn->d_tag = DT_SUNW_LDMACH;
2565	dyn->d_un.d_val = ld_sunw_ldmach();
2566	dyn++;
2567
2568	(*ld_targ.t_mr.mr_mach_update_odynamic)(ofl, &dyn);
2569
2570	for (cnt = 1 + DYNAMIC_EXTRA_ELTS; cnt--; dyn++) {
2571		dyn->d_tag = DT_NULL;
2572		dyn->d_un.d_val = 0;
2573	}
2574
2575	/*
2576	 * Ensure that we wrote the right number of entries. If not, we either
2577	 * miscounted in make_dynamic(), or we did something wrong in this
2578	 * function.
2579	 */
2580	assert((ofl->ofl_osdynamic->os_shdr->sh_size /
2581	    ofl->ofl_osdynamic->os_shdr->sh_entsize) ==
2582	    ((uintptr_t)dyn - (uintptr_t)_dyn) / sizeof (*dyn));
2583
2584	return (1);
2585}
2586
2587/*
2588 * Build the version definition section
2589 */
2590static int
2591update_overdef(Ofl_desc *ofl)
2592{
2593	Aliste		idx1;
2594	Ver_desc	*vdp, *_vdp;
2595	Verdef		*vdf, *_vdf;
2596	int		num = 0;
2597	Os_desc		*strosp;
2598	Str_tbl		*strtbl;
2599
2600	/*
2601	 * Determine which string table to use.
2602	 */
2603	if (OFL_IS_STATIC_OBJ(ofl)) {
2604		strtbl = ofl->ofl_strtab;
2605		strosp = ofl->ofl_osstrtab;
2606	} else {
2607		strtbl = ofl->ofl_dynstrtab;
2608		strosp = ofl->ofl_osdynstr;
2609	}
2610
2611	/*
2612	 * Traverse the version descriptors and update the version structures
2613	 * to point to the dynstr name in preparation for building the version
2614	 * section structure.
2615	 */
2616	for (APLIST_TRAVERSE(ofl->ofl_verdesc, idx1, vdp)) {
2617		Sym_desc	*sdp;
2618
2619		if (vdp->vd_flags & VER_FLG_BASE) {
2620			const char	*name = vdp->vd_name;
2621			size_t		stoff;
2622
2623			/*
2624			 * Create a new string table entry to represent the base
2625			 * version name (there is no corresponding symbol for
2626			 * this).
2627			 */
2628			(void) st_setstring(strtbl, name, &stoff);
2629			/* LINTED */
2630			vdp->vd_name = (const char *)stoff;
2631		} else {
2632			sdp = ld_sym_find(vdp->vd_name, vdp->vd_hash, 0, ofl);
2633			/* LINTED */
2634			vdp->vd_name = (const char *)
2635			    (uintptr_t)sdp->sd_sym->st_name;
2636		}
2637	}
2638
2639	_vdf = vdf = (Verdef *)ofl->ofl_osverdef->os_outdata->d_buf;
2640
2641	/*
2642	 * Traverse the version descriptors and update the version section to
2643	 * reflect each version and its associated dependencies.
2644	 */
2645	for (APLIST_TRAVERSE(ofl->ofl_verdesc, idx1, vdp)) {
2646		Aliste		idx2;
2647		Half		cnt = 1;
2648		Verdaux		*vdap, *_vdap;
2649
2650		_vdap = vdap = (Verdaux *)(vdf + 1);
2651
2652		vdf->vd_version = VER_DEF_CURRENT;
2653		vdf->vd_flags	= vdp->vd_flags & MSK_VER_USER;
2654		vdf->vd_ndx	= vdp->vd_ndx;
2655		vdf->vd_hash	= vdp->vd_hash;
2656
2657		/* LINTED */
2658		vdap->vda_name = (uintptr_t)vdp->vd_name;
2659		vdap++;
2660		/* LINTED */
2661		_vdap->vda_next = (Word)((uintptr_t)vdap - (uintptr_t)_vdap);
2662
2663		/*
2664		 * Traverse this versions dependency list generating the
2665		 * appropriate version dependency entries.
2666		 */
2667		for (APLIST_TRAVERSE(vdp->vd_deps, idx2, _vdp)) {
2668			/* LINTED */
2669			vdap->vda_name = (uintptr_t)_vdp->vd_name;
2670			_vdap = vdap;
2671			vdap++, cnt++;
2672			/* LINTED */
2673			_vdap->vda_next = (Word)((uintptr_t)vdap -
2674			    (uintptr_t)_vdap);
2675		}
2676		_vdap->vda_next = 0;
2677
2678		/*
2679		 * Record the versions auxiliary array offset and the associated
2680		 * dependency count.
2681		 */
2682		/* LINTED */
2683		vdf->vd_aux = (Word)((uintptr_t)(vdf + 1) - (uintptr_t)vdf);
2684		vdf->vd_cnt = cnt;
2685
2686		/*
2687		 * Record the next versions offset and update the version
2688		 * pointer.  Remember the previous version offset as the very
2689		 * last structures next pointer should be null.
2690		 */
2691		_vdf = vdf;
2692		vdf = (Verdef *)vdap, num++;
2693		/* LINTED */
2694		_vdf->vd_next = (Word)((uintptr_t)vdf - (uintptr_t)_vdf);
2695	}
2696	_vdf->vd_next = 0;
2697
2698	/*
2699	 * Record the string table association with the version definition
2700	 * section, and the symbol table associated with the version symbol
2701	 * table (the actual contents of the version symbol table are filled
2702	 * in during symbol update).
2703	 */
2704	/* LINTED */
2705	ofl->ofl_osverdef->os_shdr->sh_link = (Word)elf_ndxscn(strosp->os_scn);
2706
2707	/*
2708	 * The version definition sections `info' field is used to indicate the
2709	 * number of entries in this section.
2710	 */
2711	ofl->ofl_osverdef->os_shdr->sh_info = num;
2712
2713	return (1);
2714}
2715
2716/*
2717 * Finish the version symbol index section
2718 */
2719static void
2720update_oversym(Ofl_desc *ofl)
2721{
2722	Os_desc		*osp;
2723
2724	/*
2725	 * Record the symbol table associated with the version symbol table.
2726	 * The contents of the version symbol table are filled in during
2727	 * symbol update.
2728	 */
2729	if (OFL_IS_STATIC_OBJ(ofl))
2730		osp = ofl->ofl_ossymtab;
2731	else
2732		osp = ofl->ofl_osdynsym;
2733
2734	/* LINTED */
2735	ofl->ofl_osversym->os_shdr->sh_link = (Word)elf_ndxscn(osp->os_scn);
2736}
2737
2738/*
2739 * Build the version needed section
2740 */
2741static int
2742update_overneed(Ofl_desc *ofl)
2743{
2744	Aliste		idx1;
2745	Ifl_desc	*ifl;
2746	Verneed		*vnd, *_vnd;
2747	Os_desc		*strosp;
2748	Str_tbl		*strtbl;
2749	Word		num = 0;
2750
2751	_vnd = vnd = (Verneed *)ofl->ofl_osverneed->os_outdata->d_buf;
2752
2753	/*
2754	 * Determine which string table is appropriate.
2755	 */
2756	if (OFL_IS_STATIC_OBJ(ofl)) {
2757		strosp = ofl->ofl_osstrtab;
2758		strtbl = ofl->ofl_strtab;
2759	} else {
2760		strosp = ofl->ofl_osdynstr;
2761		strtbl = ofl->ofl_dynstrtab;
2762	}
2763
2764	/*
2765	 * Traverse the shared object list looking for dependencies that have
2766	 * versions defined within them.
2767	 */
2768	for (APLIST_TRAVERSE(ofl->ofl_sos, idx1, ifl)) {
2769		Half		_cnt;
2770		Word		cnt = 0;
2771		Vernaux		*_vnap, *vnap;
2772		size_t		stoff;
2773
2774		if (!(ifl->ifl_flags & FLG_IF_VERNEED))
2775			continue;
2776
2777		vnd->vn_version = VER_NEED_CURRENT;
2778
2779		(void) st_setstring(strtbl, ifl->ifl_soname, &stoff);
2780		vnd->vn_file = stoff;
2781
2782		_vnap = vnap = (Vernaux *)(vnd + 1);
2783
2784		/*
2785		 * Traverse the version index list recording
2786		 * each version as a needed dependency.
2787		 */
2788		for (_cnt = 0; _cnt <= ifl->ifl_vercnt; _cnt++) {
2789			Ver_index	*vip = &ifl->ifl_verndx[_cnt];
2790
2791			if (vip->vi_flags & FLG_VER_REFER) {
2792				(void) st_setstring(strtbl, vip->vi_name,
2793				    &stoff);
2794				vnap->vna_name = stoff;
2795
2796				if (vip->vi_desc) {
2797					vnap->vna_hash = vip->vi_desc->vd_hash;
2798					vnap->vna_flags =
2799					    vip->vi_desc->vd_flags;
2800				} else {
2801					vnap->vna_hash = 0;
2802					vnap->vna_flags = 0;
2803				}
2804				vnap->vna_other = vip->vi_overndx;
2805
2806				/*
2807				 * If version A inherits version B, then
2808				 * B is implicit in A. It suffices for ld.so.1
2809				 * to verify A at runtime and skip B. The
2810				 * version normalization process sets the INFO
2811				 * flag for the versions we want ld.so.1 to
2812				 * skip.
2813				 */
2814				if (vip->vi_flags & VER_FLG_INFO)
2815					vnap->vna_flags |= VER_FLG_INFO;
2816
2817				_vnap = vnap;
2818				vnap++, cnt++;
2819				_vnap->vna_next =
2820				    /* LINTED */
2821				    (Word)((uintptr_t)vnap - (uintptr_t)_vnap);
2822			}
2823		}
2824
2825		_vnap->vna_next = 0;
2826
2827		/*
2828		 * Record the versions auxiliary array offset and
2829		 * the associated dependency count.
2830		 */
2831		/* LINTED */
2832		vnd->vn_aux = (Word)((uintptr_t)(vnd + 1) - (uintptr_t)vnd);
2833		/* LINTED */
2834		vnd->vn_cnt = (Half)cnt;
2835
2836		/*
2837		 * Record the next versions offset and update the version
2838		 * pointer.  Remember the previous version offset as the very
2839		 * last structures next pointer should be null.
2840		 */
2841		_vnd = vnd;
2842		vnd = (Verneed *)vnap, num++;
2843		/* LINTED */
2844		_vnd->vn_next = (Word)((uintptr_t)vnd - (uintptr_t)_vnd);
2845	}
2846	_vnd->vn_next = 0;
2847
2848	/*
2849	 * Use sh_link to record the associated string table section, and
2850	 * sh_info to indicate the number of entries contained in the section.
2851	 */
2852	/* LINTED */
2853	ofl->ofl_osverneed->os_shdr->sh_link = (Word)elf_ndxscn(strosp->os_scn);
2854	ofl->ofl_osverneed->os_shdr->sh_info = num;
2855
2856	return (1);
2857}
2858
2859/*
2860 * Update syminfo section.
2861 */
2862static uintptr_t
2863update_osyminfo(Ofl_desc *ofl)
2864{
2865	Os_desc		*symosp, *infosp = ofl->ofl_ossyminfo;
2866	Syminfo		*sip = infosp->os_outdata->d_buf;
2867	Shdr		*shdr = infosp->os_shdr;
2868	char		*strtab;
2869	Aliste		idx;
2870	Sym_desc	*sdp;
2871	Sfltr_desc	*sftp;
2872
2873	if (ofl->ofl_flags & FLG_OF_RELOBJ) {
2874		symosp = ofl->ofl_ossymtab;
2875		strtab = ofl->ofl_osstrtab->os_outdata->d_buf;
2876	} else {
2877		symosp = ofl->ofl_osdynsym;
2878		strtab = ofl->ofl_osdynstr->os_outdata->d_buf;
2879	}
2880
2881	/* LINTED */
2882	infosp->os_shdr->sh_link = (Word)elf_ndxscn(symosp->os_scn);
2883	if (ofl->ofl_osdynamic)
2884		infosp->os_shdr->sh_info =
2885		    /* LINTED */
2886		    (Word)elf_ndxscn(ofl->ofl_osdynamic->os_scn);
2887
2888	/*
2889	 * Update any references with the index into the dynamic table.
2890	 */
2891	for (APLIST_TRAVERSE(ofl->ofl_symdtent, idx, sdp))
2892		sip[sdp->sd_symndx].si_boundto = sdp->sd_file->ifl_neededndx;
2893
2894	/*
2895	 * Update any filtee references with the index into the dynamic table.
2896	 */
2897	for (ALIST_TRAVERSE(ofl->ofl_symfltrs, idx, sftp)) {
2898		Dfltr_desc	*dftp;
2899
2900		dftp = alist_item(ofl->ofl_dtsfltrs, sftp->sft_idx);
2901		sip[sftp->sft_sdp->sd_symndx].si_boundto = dftp->dft_ndx;
2902	}
2903
2904	/*
2905	 * Display debugging information about section.
2906	 */
2907	DBG_CALL(Dbg_syminfo_title(ofl->ofl_lml));
2908	if (DBG_ENABLED) {
2909		Word	_cnt, cnt = shdr->sh_size / shdr->sh_entsize;
2910		Sym	*symtab = symosp->os_outdata->d_buf;
2911		Dyn	*dyn;
2912
2913		if (ofl->ofl_osdynamic)
2914			dyn = ofl->ofl_osdynamic->os_outdata->d_buf;
2915		else
2916			dyn = NULL;
2917
2918		for (_cnt = 1; _cnt < cnt; _cnt++) {
2919			if (sip[_cnt].si_flags || sip[_cnt].si_boundto)
2920				/* LINTED */
2921				DBG_CALL(Dbg_syminfo_entry(ofl->ofl_lml, _cnt,
2922				    &sip[_cnt], &symtab[_cnt], strtab, dyn));
2923		}
2924	}
2925	return (1);
2926}
2927
2928/*
2929 * Build the output elf header.
2930 */
2931static uintptr_t
2932update_oehdr(Ofl_desc * ofl)
2933{
2934	Ehdr	*ehdr = ofl->ofl_nehdr;
2935
2936	/*
2937	 * If an entry point symbol has already been established (refer
2938	 * sym_validate()) simply update the elf header entry point with the
2939	 * symbols value.  If no entry point is defined it will have been filled
2940	 * with the start address of the first section within the text segment
2941	 * (refer update_outfile()).
2942	 */
2943	if (ofl->ofl_entry)
2944		ehdr->e_entry =
2945		    ((Sym_desc *)(ofl->ofl_entry))->sd_sym->st_value;
2946
2947	/*
2948	 * Note. it may be necessary to update the `e_flags' field in the
2949	 * machine dependent section.
2950	 */
2951	ehdr->e_ident[EI_DATA] = ld_targ.t_m.m_data;
2952	ehdr->e_machine = ofl->ofl_dehdr->e_machine;
2953	ehdr->e_flags = ofl->ofl_dehdr->e_flags;
2954	ehdr->e_version = ofl->ofl_dehdr->e_version;
2955
2956	if (ehdr->e_machine != ld_targ.t_m.m_mach) {
2957		if (ehdr->e_machine != ld_targ.t_m.m_machplus)
2958			return (S_ERROR);
2959		if ((ehdr->e_flags & ld_targ.t_m.m_flagsplus) == 0)
2960			return (S_ERROR);
2961	}
2962
2963	if (ofl->ofl_flags & FLG_OF_SHAROBJ)
2964		ehdr->e_type = ET_DYN;
2965	else if (ofl->ofl_flags & FLG_OF_RELOBJ)
2966		ehdr->e_type = ET_REL;
2967	else
2968		ehdr->e_type = ET_EXEC;
2969
2970	return (1);
2971}
2972
2973/*
2974 * Perform move table expansion.
2975 */
2976static void
2977expand_move(Ofl_desc *ofl, Sym_desc *sdp, Move *mvp)
2978{
2979	Os_desc		*osp;
2980	uchar_t		*taddr, *taddr0;
2981	Sxword		offset;
2982	Half		cnt;
2983	uint_t		stride;
2984
2985	osp = ofl->ofl_isparexpn->is_osdesc;
2986	offset = sdp->sd_sym->st_value - osp->os_shdr->sh_addr;
2987
2988	taddr0 = taddr = osp->os_outdata->d_buf;
2989	taddr += offset;
2990	taddr = taddr + mvp->m_poffset;
2991
2992	for (cnt = 0; cnt < mvp->m_repeat; cnt++) {
2993		/* LINTED */
2994		DBG_CALL(Dbg_move_expand(ofl->ofl_lml, mvp,
2995		    (Addr)(taddr - taddr0)));
2996		stride = (uint_t)mvp->m_stride + 1;
2997
2998		/*
2999		 * Update the target address based upon the move entry size.
3000		 * This size was validated in ld_process_move().
3001		 */
3002		/* LINTED */
3003		switch (ELF_M_SIZE(mvp->m_info)) {
3004		case 1:
3005			/* LINTED */
3006			*taddr = (uchar_t)mvp->m_value;
3007			taddr += stride;
3008			break;
3009		case 2:
3010			/* LINTED */
3011			*((Half *)taddr) = (Half)mvp->m_value;
3012			taddr += 2 * stride;
3013			break;
3014		case 4:
3015			/* LINTED */
3016			*((Word *)taddr) = (Word)mvp->m_value;
3017			taddr += 4 * stride;
3018			break;
3019		case 8:
3020			/* LINTED */
3021			*((u_longlong_t *)taddr) = mvp->m_value;
3022			taddr += 8 * stride;
3023			break;
3024		}
3025	}
3026}
3027
3028/*
3029 * Update Move sections.
3030 */
3031static void
3032update_move(Ofl_desc *ofl)
3033{
3034	Word		ndx = 0;
3035	ofl_flag_t	flags = ofl->ofl_flags;
3036	Move		*omvp;
3037	Aliste		idx1;
3038	Sym_desc	*sdp;
3039
3040	/*
3041	 * Determine the index of the symbol table that will be referenced by
3042	 * the Move section.
3043	 */
3044	if (OFL_ALLOW_DYNSYM(ofl))
3045		/* LINTED */
3046		ndx = (Word) elf_ndxscn(ofl->ofl_osdynsym->os_scn);
3047	else if (!(flags & FLG_OF_STRIP) || (flags & FLG_OF_RELOBJ))
3048		/* LINTED */
3049		ndx = (Word) elf_ndxscn(ofl->ofl_ossymtab->os_scn);
3050
3051	/*
3052	 * Update sh_link of the Move section, and point to the new Move data.
3053	 */
3054	if (ofl->ofl_osmove) {
3055		ofl->ofl_osmove->os_shdr->sh_link = ndx;
3056		omvp = (Move *)ofl->ofl_osmove->os_outdata->d_buf;
3057	}
3058
3059	/*
3060	 * Update symbol entry index
3061	 */
3062	for (APLIST_TRAVERSE(ofl->ofl_parsyms, idx1, sdp)) {
3063		Aliste		idx2;
3064		Mv_desc		*mdp;
3065
3066		/*
3067		 * Expand move table
3068		 */
3069		if (sdp->sd_flags & FLG_SY_PAREXPN) {
3070			const char	*str;
3071
3072			if (flags & FLG_OF_STATIC)
3073				str = MSG_INTL(MSG_PSYM_EXPREASON1);
3074			else if (ofl->ofl_flags1 & FLG_OF1_NOPARTI)
3075				str = MSG_INTL(MSG_PSYM_EXPREASON2);
3076			else
3077				str = MSG_INTL(MSG_PSYM_EXPREASON3);
3078
3079			DBG_CALL(Dbg_move_parexpn(ofl->ofl_lml,
3080			    sdp->sd_name, str));
3081
3082			for (ALIST_TRAVERSE(sdp->sd_move, idx2, mdp)) {
3083				DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 0,
3084				    mdp->md_move, sdp));
3085				expand_move(ofl, sdp, mdp->md_move);
3086			}
3087			continue;
3088		}
3089
3090		/*
3091		 * Process move table
3092		 */
3093		DBG_CALL(Dbg_move_outmove(ofl->ofl_lml, sdp->sd_name));
3094
3095		for (ALIST_TRAVERSE(sdp->sd_move, idx2, mdp)) {
3096			Move	*imvp;
3097			int	idx = 1;
3098			Sym	*sym;
3099
3100			imvp = mdp->md_move;
3101			sym = sdp->sd_sym;
3102
3103			DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 1, imvp, sdp));
3104
3105			*omvp = *imvp;
3106			if ((flags & FLG_OF_RELOBJ) == 0) {
3107				if (ELF_ST_BIND(sym->st_info) == STB_LOCAL) {
3108					Os_desc	*osp = sdp->sd_isc->is_osdesc;
3109					Word	ndx = osp->os_identndx;
3110
3111					omvp->m_info =
3112					    /* LINTED */
3113					    ELF_M_INFO(ndx, imvp->m_info);
3114
3115					if (ELF_ST_TYPE(sym->st_info) !=
3116					    STT_SECTION) {
3117						omvp->m_poffset =
3118						    sym->st_value -
3119						    osp->os_shdr->sh_addr +
3120						    imvp->m_poffset;
3121					}
3122				} else {
3123					omvp->m_info =
3124					    /* LINTED */
3125					    ELF_M_INFO(sdp->sd_symndx,
3126					    imvp->m_info);
3127				}
3128			} else {
3129				Boolean 	isredloc = FALSE;
3130
3131				if ((ELF_ST_BIND(sym->st_info) == STB_LOCAL) &&
3132				    (ofl->ofl_flags & FLG_OF_REDLSYM))
3133					isredloc = TRUE;
3134
3135				if (isredloc && !(sdp->sd_move)) {
3136					Os_desc	*osp = sdp->sd_isc->is_osdesc;
3137					Word	ndx = osp->os_identndx;
3138
3139					omvp->m_info =
3140					    /* LINTED */
3141					    ELF_M_INFO(ndx, imvp->m_info);
3142
3143					omvp->m_poffset += sym->st_value;
3144				} else {
3145					if (isredloc)
3146						DBG_CALL(Dbg_syms_reduce(ofl,
3147						    DBG_SYM_REDUCE_RETAIN,
3148						    sdp, idx,
3149						    ofl->ofl_osmove->os_name));
3150
3151					omvp->m_info =
3152					    /* LINTED */
3153					    ELF_M_INFO(sdp->sd_symndx,
3154					    imvp->m_info);
3155				}
3156			}
3157
3158			DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 0, omvp, sdp));
3159			omvp++;
3160			idx++;
3161		}
3162	}
3163}
3164
3165/*
3166 * Scan through the SHT_GROUP output sections.  Update their sh_link/sh_info
3167 * fields as well as the section contents.
3168 */
3169static uintptr_t
3170update_ogroup(Ofl_desc *ofl)
3171{
3172	Aliste		idx;
3173	Os_desc		*osp;
3174	uintptr_t	error = 0;
3175
3176	for (APLIST_TRAVERSE(ofl->ofl_osgroups, idx, osp)) {
3177		Is_desc		*isp;
3178		Ifl_desc	*ifl;
3179		Shdr		*shdr = osp->os_shdr;
3180		Sym_desc	*sdp;
3181		Xword		i, grpcnt;
3182		Word		*gdata;
3183
3184		/*
3185		 * Since input GROUP sections always create unique
3186		 * output GROUP sections - we know there is only one
3187		 * item on the list.
3188		 */
3189		isp = ld_os_first_isdesc(osp);
3190
3191		ifl = isp->is_file;
3192		sdp = ifl->ifl_oldndx[isp->is_shdr->sh_info];
3193		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_ossymtab->os_scn);
3194		shdr->sh_info = sdp->sd_symndx;
3195
3196		/*
3197		 * Scan through the group data section and update
3198		 * all of the links to new values.
3199		 */
3200		grpcnt = shdr->sh_size / shdr->sh_entsize;
3201		gdata = (Word *)osp->os_outdata->d_buf;
3202
3203		for (i = 1; i < grpcnt; i++) {
3204			Os_desc	*_osp;
3205			Is_desc	*_isp = ifl->ifl_isdesc[gdata[i]];
3206
3207			/*
3208			 * If the referenced section didn't make it to the
3209			 * output file - just zero out the entry.
3210			 */
3211			if ((_osp = _isp->is_osdesc) == NULL)
3212				gdata[i] = 0;
3213			else
3214				gdata[i] = (Word)elf_ndxscn(_osp->os_scn);
3215		}
3216	}
3217	return (error);
3218}
3219
3220static void
3221update_ostrtab(Os_desc *osp, Str_tbl *stp, uint_t extra)
3222{
3223	Elf_Data	*data;
3224
3225	if (osp == NULL)
3226		return;
3227
3228	data = osp->os_outdata;
3229	assert(data->d_size == (st_getstrtab_sz(stp) + extra));
3230	(void) st_setstrbuf(stp, data->d_buf, data->d_size - extra);
3231	/* If leaving an extra hole at the end, zero it */
3232	if (extra > 0)
3233		(void) memset((char *)data->d_buf + data->d_size - extra,
3234		    0x0, extra);
3235}
3236
3237/*
3238 * Update capabilities information.
3239 *
3240 * If string table capabilities exist, then the associated string must be
3241 * translated into an offset into the string table.
3242 */
3243static void
3244update_oscap(Ofl_desc *ofl)
3245{
3246	Os_desc		*strosp, *cosp;
3247	Cap		*cap;
3248	Str_tbl		*strtbl;
3249	Capstr		*capstr;
3250	size_t		stoff;
3251	Aliste		idx1;
3252
3253	/*
3254	 * Determine which symbol table or string table is appropriate.
3255	 */
3256	if (OFL_IS_STATIC_OBJ(ofl)) {
3257		strosp = ofl->ofl_osstrtab;
3258		strtbl = ofl->ofl_strtab;
3259	} else {
3260		strosp = ofl->ofl_osdynstr;
3261		strtbl = ofl->ofl_dynstrtab;
3262	}
3263
3264	/*
3265	 * If symbol capabilities exist, set the sh_link field of the .SUNW_cap
3266	 * section to the .SUNW_capinfo section.
3267	 */
3268	if (ofl->ofl_oscapinfo) {
3269		cosp = ofl->ofl_oscap;
3270		cosp->os_shdr->sh_link =
3271		    (Word)elf_ndxscn(ofl->ofl_oscapinfo->os_scn);
3272	}
3273
3274	/*
3275	 * If there are capability strings to process, set the sh_info
3276	 * field of the .SUNW_cap section to the associated string table, and
3277	 * proceed to process any CA_SUNW_PLAT entries.
3278	 */
3279	if ((ofl->ofl_flags & FLG_OF_CAPSTRS) == 0)
3280		return;
3281
3282	cosp = ofl->ofl_oscap;
3283	cosp->os_shdr->sh_info = (Word)elf_ndxscn(strosp->os_scn);
3284
3285	cap = ofl->ofl_oscap->os_outdata->d_buf;
3286
3287	/*
3288	 * Determine whether an object capability identifier, or object
3289	 * machine/platform capabilities exists.
3290	 */
3291	capstr = &ofl->ofl_ocapset.oc_id;
3292	if (capstr->cs_str) {
3293		(void) st_setstring(strtbl, capstr->cs_str, &stoff);
3294		cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3295	}
3296	for (ALIST_TRAVERSE(ofl->ofl_ocapset.oc_plat.cl_val, idx1, capstr)) {
3297		(void) st_setstring(strtbl, capstr->cs_str, &stoff);
3298		cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3299	}
3300	for (ALIST_TRAVERSE(ofl->ofl_ocapset.oc_mach.cl_val, idx1, capstr)) {
3301		(void) st_setstring(strtbl, capstr->cs_str, &stoff);
3302		cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3303	}
3304
3305	/*
3306	 * Determine any symbol capability identifiers, or machine/platform
3307	 * capabilities.
3308	 */
3309	if (ofl->ofl_capgroups) {
3310		Cap_group	*cgp;
3311
3312		for (APLIST_TRAVERSE(ofl->ofl_capgroups, idx1, cgp)) {
3313			Objcapset	*ocapset = &cgp->cg_set;
3314			Aliste		idx2;
3315
3316			capstr = &ocapset->oc_id;
3317			if (capstr->cs_str) {
3318				(void) st_setstring(strtbl, capstr->cs_str,
3319				    &stoff);
3320				cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3321			}
3322			for (ALIST_TRAVERSE(ocapset->oc_plat.cl_val, idx2,
3323			    capstr)) {
3324				(void) st_setstring(strtbl, capstr->cs_str,
3325				    &stoff);
3326				cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3327			}
3328			for (ALIST_TRAVERSE(ocapset->oc_mach.cl_val, idx2,
3329			    capstr)) {
3330				(void) st_setstring(strtbl, capstr->cs_str,
3331				    &stoff);
3332				cap[capstr->cs_ndx].c_un.c_ptr = stoff;
3333			}
3334		}
3335	}
3336}
3337
3338/*
3339 * Update the .SUNW_capinfo, and possibly the .SUNW_capchain sections.
3340 */
3341static void
3342update_oscapinfo(Ofl_desc *ofl)
3343{
3344	Os_desc		*symosp, *ciosp, *ccosp = NULL;
3345	Capinfo		*ocapinfo;
3346	Capchain	*ocapchain;
3347	Cap_avlnode	*cav;
3348	Word		chainndx = 0;
3349
3350	/*
3351	 * Determine which symbol table is appropriate.
3352	 */
3353	if (OFL_IS_STATIC_OBJ(ofl))
3354		symosp = ofl->ofl_ossymtab;
3355	else
3356		symosp = ofl->ofl_osdynsym;
3357
3358	/*
3359	 * Update the .SUNW_capinfo sh_link to point to the appropriate symbol
3360	 * table section.  If we're creating a dynamic object, the
3361	 * .SUNW_capinfo sh_info is updated to point to the .SUNW_capchain
3362	 * section.
3363	 */
3364	ciosp = ofl->ofl_oscapinfo;
3365	ciosp->os_shdr->sh_link = (Word)elf_ndxscn(symosp->os_scn);
3366
3367	if (OFL_IS_STATIC_OBJ(ofl) == 0) {
3368		ccosp = ofl->ofl_oscapchain;
3369		ciosp->os_shdr->sh_info = (Word)elf_ndxscn(ccosp->os_scn);
3370	}
3371
3372	/*
3373	 * Establish the data for each section.  The first element of each
3374	 * section defines the section's version number.
3375	 */
3376	ocapinfo = ciosp->os_outdata->d_buf;
3377	ocapinfo[0] = CAPINFO_CURRENT;
3378	if (ccosp) {
3379		ocapchain = ccosp->os_outdata->d_buf;
3380		ocapchain[chainndx++] = CAPCHAIN_CURRENT;
3381	}
3382
3383	/*
3384	 * Traverse all capabilities families.  Each member has a .SUNW_capinfo
3385	 * assignment.  The .SUNW_capinfo entry differs for relocatable objects
3386	 * and dynamic objects.
3387	 *
3388	 * Relocatable objects:
3389	 *			ELF_C_GROUP		ELF_C_SYM
3390	 *
3391	 * Family lead:		CAPINFO_SUNW_GLOB	lead symbol index
3392	 * Family lead alias:	CAPINFO_SUNW_GLOB	lead symbol index
3393	 * Family member:	.SUNW_cap index		lead symbol index
3394	 *
3395	 * Dynamic objects:
3396	 *			ELF_C_GROUP		ELF_C_SYM
3397	 *
3398	 * Family lead:		CAPINFO_SUNW_GLOB	.SUNW_capchain index
3399	 * Family lead alias:	CAPINFO_SUNW_GLOB	.SUNW_capchain index
3400	 * Family member:	.SUNW_cap index		lead symbol index
3401	 *
3402	 * The ELF_C_GROUP field identifies a capabilities symbol.  Lead
3403	 * capability symbols, and lead capability aliases are identified by
3404	 * a CAPINFO_SUNW_GLOB group identifier.  For family members, the
3405	 * ELF_C_GROUP provides an index to the associate capabilities group
3406	 * (i.e, an index into the SUNW_cap section that defines a group).
3407	 *
3408	 * For relocatable objects, the ELF_C_SYM field identifies the lead
3409	 * capability symbol.  For the lead symbol itself, the .SUNW_capinfo
3410	 * index is the same as the ELF_C_SYM value.  For lead alias symbols,
3411	 * the .SUNW_capinfo index differs from the ELF_C_SYM value.  This
3412	 * differentiation of CAPINFO_SUNW_GLOB symbols allows ld(1) to
3413	 * identify, and propagate lead alias symbols.  For example, the lead
3414	 * capability symbol memcpy() would have the ELF_C_SYM for memcpy(),
3415	 * and the lead alias _memcpy() would also have the ELF_C_SYM for
3416	 * memcpy().
3417	 *
3418	 * For dynamic objects, both a lead capability symbol, and alias symbol
3419	 * would have a ELF_C_SYM value that represents the same capability
3420	 * chain index.  The capability chain allows ld.so.1 to traverse a
3421	 * family chain for a given lead symbol, and select the most appropriate
3422	 * family member.  The .SUNW_capchain array contains a series of symbol
3423	 * indexes for each family member:
3424	 *
3425	 *    chaincap[n]  chaincap[n + 1]  chaincap[n + 2]  chaincap[n + x]
3426	 *	foo() ndx    foo%x() ndx	foo%y() ndx	0
3427	 *
3428	 * For family members, the ELF_C_SYM value associates the capability
3429	 * members with their family lead symbol.  This association, although
3430	 * unused within a dynamic object, allows ld(1) to identify, and
3431	 * propagate family members when processing relocatable objects.
3432	 */
3433	for (cav = avl_first(ofl->ofl_capfamilies); cav;
3434	    cav = AVL_NEXT(ofl->ofl_capfamilies, cav)) {
3435		Cap_sym		*csp;
3436		Aliste		idx;
3437		Sym_desc	*asdp, *lsdp = cav->cn_symavlnode.sav_sdp;
3438
3439		if (ccosp) {
3440			/*
3441			 * For a dynamic object, identify this lead symbol, and
3442			 * point it to the head of a capability chain.  Set the
3443			 * head of the capability chain to the same lead symbol.
3444			 */
3445			ocapinfo[lsdp->sd_symndx] =
3446			    ELF_C_INFO(chainndx, CAPINFO_SUNW_GLOB);
3447			ocapchain[chainndx] = lsdp->sd_symndx;
3448		} else {
3449			/*
3450			 * For a relocatable object, identify this lead symbol,
3451			 * and set the lead symbol index to itself.
3452			 */
3453			ocapinfo[lsdp->sd_symndx] =
3454			    ELF_C_INFO(lsdp->sd_symndx, CAPINFO_SUNW_GLOB);
3455		}
3456
3457		/*
3458		 * Gather any lead symbol aliases.
3459		 */
3460		for (APLIST_TRAVERSE(cav->cn_aliases, idx, asdp)) {
3461			if (ccosp) {
3462				/*
3463				 * For a dynamic object, identify this lead
3464				 * alias symbol, and point it to the same
3465				 * capability chain index as the lead symbol.
3466				 */
3467				ocapinfo[asdp->sd_symndx] =
3468				    ELF_C_INFO(chainndx, CAPINFO_SUNW_GLOB);
3469			} else {
3470				/*
3471				 * For a relocatable object, identify this lead
3472				 * alias symbol, and set the lead symbol index
3473				 * to the lead symbol.
3474				 */
3475				ocapinfo[asdp->sd_symndx] =
3476				    ELF_C_INFO(lsdp->sd_symndx,
3477				    CAPINFO_SUNW_GLOB);
3478			}
3479		}
3480
3481		chainndx++;
3482
3483		/*
3484		 * Gather the family members.
3485		 */
3486		for (APLIST_TRAVERSE(cav->cn_members, idx, csp)) {
3487			Sym_desc	*msdp = csp->cs_sdp;
3488
3489			/*
3490			 * Identify the members capability group, and the lead
3491			 * symbol of the family this symbol is a member of.
3492			 */
3493			ocapinfo[msdp->sd_symndx] =
3494			    ELF_C_INFO(lsdp->sd_symndx, csp->cs_group->cg_ndx);
3495			if (ccosp) {
3496				/*
3497				 * For a dynamic object, set the next capability
3498				 * chain to point to this family member.
3499				 */
3500				ocapchain[chainndx++] = msdp->sd_symndx;
3501			}
3502		}
3503
3504		/*
3505		 * Any chain of family members is terminated with a 0 element.
3506		 */
3507		if (ccosp)
3508			ocapchain[chainndx++] = 0;
3509	}
3510}
3511
3512/*
3513 * Translate the shdr->sh_{link, info} from its input section value to that
3514 * of the corresponding shdr->sh_{link, info} output section value.
3515 */
3516static Word
3517translate_link(Ofl_desc *ofl, Os_desc *osp, Word link, const char *msg)
3518{
3519	Is_desc		*isp;
3520	Ifl_desc	*ifl;
3521
3522	/*
3523	 * Don't translate the special section numbers.
3524	 */
3525	if (link >= SHN_LORESERVE)
3526		return (link);
3527
3528	/*
3529	 * Does this output section translate back to an input file.  If not
3530	 * then there is no translation to do.  In this case we will assume that
3531	 * if sh_link has a value, it's the right value.
3532	 */
3533	isp = ld_os_first_isdesc(osp);
3534	if ((ifl = isp->is_file) == NULL)
3535		return (link);
3536
3537	/*
3538	 * Sanity check to make sure that the sh_{link, info} value
3539	 * is within range for the input file.
3540	 */
3541	if (link >= ifl->ifl_shnum) {
3542		eprintf(ofl->ofl_lml, ERR_WARNING, msg, ifl->ifl_name,
3543		    EC_WORD(isp->is_scnndx), isp->is_name, EC_XWORD(link));
3544		return (link);
3545	}
3546
3547	/*
3548	 * Follow the link to the input section.
3549	 */
3550	if ((isp = ifl->ifl_isdesc[link]) == NULL)
3551		return (0);
3552	if ((osp = isp->is_osdesc) == NULL)
3553		return (0);
3554
3555	/* LINTED */
3556	return ((Word)elf_ndxscn(osp->os_scn));
3557}
3558
3559/*
3560 * Having created all of the necessary sections, segments, and associated
3561 * headers, fill in the program headers and update any other data in the
3562 * output image.  Some general rules:
3563 *
3564 *  -	If an interpreter is required always generate a PT_PHDR entry as
3565 *	well.  It is this entry that triggers the kernel into passing the
3566 *	interpreter an aux vector instead of just a file descriptor.
3567 *
3568 *  -	When generating an image that will be interpreted (ie. a dynamic
3569 *	executable, a shared object, or a static executable that has been
3570 *	provided with an interpreter - weird, but possible), make the initial
3571 *	loadable segment include both the ehdr and phdr[].  Both of these
3572 *	tables are used by the interpreter therefore it seems more intuitive
3573 *	to explicitly defined them as part of the mapped image rather than
3574 *	relying on page rounding by the interpreter to allow their access.
3575 *
3576 *  -	When generating a static image that does not require an interpreter
3577 *	have the first loadable segment indicate the address of the first
3578 *	.section as the start address (things like /kernel/unix and ufsboot
3579 *	expect this behavior).
3580 */
3581uintptr_t
3582ld_update_outfile(Ofl_desc *ofl)
3583{
3584	Addr		size, etext, vaddr;
3585	Sg_desc		*sgp;
3586	Sg_desc		*dtracesgp = NULL, *capsgp = NULL, *intpsgp = NULL;
3587	Os_desc		*osp;
3588	int		phdrndx = 0, segndx = -1, secndx, intppndx, intpsndx;
3589	int		dtracepndx, dtracesndx, cappndx, capsndx;
3590	Ehdr		*ehdr = ofl->ofl_nehdr;
3591	Shdr		*hshdr;
3592	Phdr		*_phdr = NULL;
3593	Word		phdrsz = (ehdr->e_phnum * ehdr->e_phentsize), shscnndx;
3594	ofl_flag_t	flags = ofl->ofl_flags;
3595	Word		ehdrsz = ehdr->e_ehsize;
3596	Boolean		nobits;
3597	Off		offset;
3598	Aliste		idx1;
3599
3600	/*
3601	 * Initialize the starting address for the first segment.  Executables
3602	 * have different starting addresses depending upon the target ABI,
3603	 * where as shared objects have a starting address of 0.  If this is
3604	 * a 64-bit executable that is being constructed to run in a restricted
3605	 * address space, use an alternative origin that will provide more free
3606	 * address space for the the eventual process.
3607	 */
3608	if (ofl->ofl_flags & FLG_OF_EXEC) {
3609#if	defined(_ELF64)
3610		if (ofl->ofl_ocapset.oc_sf_1.cm_val & SF1_SUNW_ADDR32)
3611			vaddr = ld_targ.t_m.m_segm_aorigin;
3612		else
3613#endif
3614			vaddr = ld_targ.t_m.m_segm_origin;
3615	} else
3616		vaddr = 0;
3617
3618	/*
3619	 * Loop through the segment descriptors and pick out what we need.
3620	 */
3621	DBG_CALL(Dbg_seg_title(ofl->ofl_lml));
3622	for (APLIST_TRAVERSE(ofl->ofl_segs, idx1, sgp)) {
3623		Phdr		*phdr = &(sgp->sg_phdr);
3624		Xword 		p_align;
3625		Aliste		idx2;
3626		Sym_desc	*sdp;
3627
3628		segndx++;
3629
3630		/*
3631		 * If an interpreter is required generate a PT_INTERP and
3632		 * PT_PHDR program header entry.  The PT_PHDR entry describes
3633		 * the program header table itself.  This information will be
3634		 * passed via the aux vector to the interpreter (ld.so.1).
3635		 * The program header array is actually part of the first
3636		 * loadable segment (and the PT_PHDR entry is the first entry),
3637		 * therefore its virtual address isn't known until the first
3638		 * loadable segment is processed.
3639		 */
3640		if (phdr->p_type == PT_PHDR) {
3641			if (ofl->ofl_osinterp) {
3642				phdr->p_offset = ehdr->e_phoff;
3643				phdr->p_filesz = phdr->p_memsz = phdrsz;
3644
3645				DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3646				ofl->ofl_phdr[phdrndx++] = *phdr;
3647			}
3648			continue;
3649		}
3650		if (phdr->p_type == PT_INTERP) {
3651			if (ofl->ofl_osinterp) {
3652				intpsgp = sgp;
3653				intpsndx = segndx;
3654				intppndx = phdrndx++;
3655			}
3656			continue;
3657		}
3658
3659		/*
3660		 * If we are creating a PT_SUNWDTRACE segment, remember where
3661		 * the program header is.  The header values are assigned after
3662		 * update_osym() has completed and the symbol table addresses
3663		 * have been updated.
3664		 */
3665		if (phdr->p_type == PT_SUNWDTRACE) {
3666			if (ofl->ofl_dtracesym &&
3667			    ((flags & FLG_OF_RELOBJ) == 0)) {
3668				dtracesgp = sgp;
3669				dtracesndx = segndx;
3670				dtracepndx = phdrndx++;
3671			}
3672			continue;
3673		}
3674
3675		/*
3676		 * If a hardware/software capabilities section is required,
3677		 * generate the PT_SUNWCAP header.  Note, as this comes before
3678		 * the first loadable segment, we don't yet know its real
3679		 * virtual address.  This is updated later.
3680		 */
3681		if (phdr->p_type == PT_SUNWCAP) {
3682			if (ofl->ofl_oscap && (ofl->ofl_flags & FLG_OF_PTCAP) &&
3683			    ((flags & FLG_OF_RELOBJ) == 0)) {
3684				capsgp = sgp;
3685				capsndx = segndx;
3686				cappndx = phdrndx++;
3687			}
3688			continue;
3689		}
3690
3691		/*
3692		 * As the dynamic program header occurs after the loadable
3693		 * headers in the segment descriptor table, all the address
3694		 * information for the .dynamic output section will have been
3695		 * figured out by now.
3696		 */
3697		if (phdr->p_type == PT_DYNAMIC) {
3698			if (OFL_ALLOW_DYNSYM(ofl)) {
3699				Shdr	*shdr = ofl->ofl_osdynamic->os_shdr;
3700
3701				phdr->p_vaddr = shdr->sh_addr;
3702				phdr->p_offset = shdr->sh_offset;
3703				phdr->p_filesz = shdr->sh_size;
3704				phdr->p_flags = ld_targ.t_m.m_dataseg_perm;
3705
3706				DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3707				ofl->ofl_phdr[phdrndx++] = *phdr;
3708			}
3709			continue;
3710		}
3711
3712		/*
3713		 * As the unwind (.eh_frame_hdr) program header occurs after
3714		 * the loadable headers in the segment descriptor table, all
3715		 * the address information for the .eh_frame output section
3716		 * will have been figured out by now.
3717		 */
3718		if (phdr->p_type == PT_SUNW_UNWIND) {
3719			Shdr	    *shdr;
3720
3721			if (ofl->ofl_unwindhdr == NULL)
3722				continue;
3723
3724			shdr = ofl->ofl_unwindhdr->os_shdr;
3725
3726			phdr->p_flags = PF_R;
3727			phdr->p_vaddr = shdr->sh_addr;
3728			phdr->p_memsz = shdr->sh_size;
3729			phdr->p_filesz = shdr->sh_size;
3730			phdr->p_offset = shdr->sh_offset;
3731			phdr->p_align = shdr->sh_addralign;
3732			phdr->p_paddr = 0;
3733			ofl->ofl_phdr[phdrndx++] = *phdr;
3734			continue;
3735		}
3736
3737		/*
3738		 * The sunwstack program is used to convey non-default
3739		 * flags for the process stack. Only emit it if it would
3740		 * change the default.
3741		 */
3742		if (phdr->p_type == PT_SUNWSTACK) {
3743			if ((sgp->sg_flags & FLG_SG_DISABLED) == 0)
3744				ofl->ofl_phdr[phdrndx++] = *phdr;
3745			continue;
3746		}
3747
3748		/*
3749		 * As the TLS program header occurs after the loadable
3750		 * headers in the segment descriptor table, all the address
3751		 * information for the .tls output section will have been
3752		 * figured out by now.
3753		 */
3754		if (phdr->p_type == PT_TLS) {
3755			Os_desc		*tlsosp;
3756			Shdr		*lastfileshdr = NULL;
3757			Shdr		*firstshdr = NULL, *lastshdr;
3758			Aliste		idx;
3759
3760			if (ofl->ofl_ostlsseg == NULL)
3761				continue;
3762
3763			/*
3764			 * Scan the output sections that have contributed TLS.
3765			 * Remember the first and last so as to determine the
3766			 * TLS memory size requirement.  Remember the last
3767			 * progbits section to determine the TLS data
3768			 * contribution, which determines the TLS program
3769			 * header filesz.
3770			 */
3771			for (APLIST_TRAVERSE(ofl->ofl_ostlsseg, idx, tlsosp)) {
3772				Shdr	*tlsshdr = tlsosp->os_shdr;
3773
3774				if (firstshdr == NULL)
3775					firstshdr = tlsshdr;
3776				if (tlsshdr->sh_type != SHT_NOBITS)
3777					lastfileshdr = tlsshdr;
3778				lastshdr = tlsshdr;
3779			}
3780
3781			phdr->p_flags = PF_R | PF_W;
3782			phdr->p_vaddr = firstshdr->sh_addr;
3783			phdr->p_offset = firstshdr->sh_offset;
3784			phdr->p_align = firstshdr->sh_addralign;
3785
3786			/*
3787			 * Determine the initialized TLS data size.  This
3788			 * address range is from the start of the TLS segment
3789			 * to the end of the last piece of initialized data.
3790			 */
3791			if (lastfileshdr)
3792				phdr->p_filesz = lastfileshdr->sh_offset +
3793				    lastfileshdr->sh_size - phdr->p_offset;
3794			else
3795				phdr->p_filesz = 0;
3796
3797			/*
3798			 * Determine the total TLS memory size.  This includes
3799			 * all TLS data and TLS uninitialized data.  This
3800			 * address range is from the start of the TLS segment
3801			 * to the memory address of the last piece of
3802			 * uninitialized data.
3803			 */
3804			phdr->p_memsz = lastshdr->sh_addr +
3805			    lastshdr->sh_size - phdr->p_vaddr;
3806
3807			DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3808			ofl->ofl_phdr[phdrndx] = *phdr;
3809			ofl->ofl_tlsphdr = &ofl->ofl_phdr[phdrndx++];
3810			continue;
3811		}
3812
3813		/*
3814		 * If this is an empty segment declaration, it will occur after
3815		 * all other loadable segments.  As empty segments can be
3816		 * defined with fixed addresses, make sure that no loadable
3817		 * segments overlap.  This might occur as the object evolves
3818		 * and the loadable segments grow, thus encroaching upon an
3819		 * existing segment reservation.
3820		 *
3821		 * Segments are only created for dynamic objects, thus this
3822		 * checking can be skipped when building a relocatable object.
3823		 */
3824		if (!(flags & FLG_OF_RELOBJ) &&
3825		    (sgp->sg_flags & FLG_SG_EMPTY)) {
3826			int	i;
3827			Addr	v_e;
3828
3829			vaddr = phdr->p_vaddr;
3830			phdr->p_memsz = sgp->sg_length;
3831			DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3832			ofl->ofl_phdr[phdrndx++] = *phdr;
3833
3834			if (phdr->p_type != PT_LOAD)
3835				continue;
3836
3837			v_e = vaddr + phdr->p_memsz;
3838
3839			/*
3840			 * Check overlaps
3841			 */
3842			for (i = 0; i < phdrndx - 1; i++) {
3843				Addr 	p_s = (ofl->ofl_phdr[i]).p_vaddr;
3844				Addr 	p_e;
3845
3846				if ((ofl->ofl_phdr[i]).p_type != PT_LOAD)
3847					continue;
3848
3849				p_e = p_s + (ofl->ofl_phdr[i]).p_memsz;
3850				if (((p_s <= vaddr) && (p_e > vaddr)) ||
3851				    ((vaddr <= p_s) && (v_e > p_s)))
3852					eprintf(ofl->ofl_lml, ERR_WARNING,
3853					    MSG_INTL(MSG_UPD_SEGOVERLAP),
3854					    ofl->ofl_name, EC_ADDR(p_e),
3855					    sgp->sg_name, EC_ADDR(vaddr));
3856			}
3857			continue;
3858		}
3859
3860		/*
3861		 * Having processed any of the special program headers any
3862		 * remaining headers will be built to express individual
3863		 * segments.  Segments are only built if they have output
3864		 * section descriptors associated with them (ie. some form of
3865		 * input section has been matched to this segment).
3866		 */
3867		if (sgp->sg_osdescs == NULL)
3868			continue;
3869
3870		/*
3871		 * Determine the segments offset and size from the section
3872		 * information provided from elf_update().
3873		 * Allow for multiple NOBITS sections.
3874		 */
3875		osp = sgp->sg_osdescs->apl_data[0];
3876		hshdr = osp->os_shdr;
3877
3878		phdr->p_filesz = 0;
3879		phdr->p_memsz = 0;
3880		phdr->p_offset = offset = hshdr->sh_offset;
3881
3882		nobits = ((hshdr->sh_type == SHT_NOBITS) &&
3883		    ((sgp->sg_flags & FLG_SG_PHREQ) == 0));
3884
3885		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
3886			Shdr	*shdr = osp->os_shdr;
3887
3888			p_align = 0;
3889			if (shdr->sh_addralign > p_align)
3890				p_align = shdr->sh_addralign;
3891
3892			offset = (Off)S_ROUND(offset, shdr->sh_addralign);
3893			offset += shdr->sh_size;
3894
3895			if (shdr->sh_type != SHT_NOBITS) {
3896				if (nobits) {
3897					eprintf(ofl->ofl_lml, ERR_FATAL,
3898					    MSG_INTL(MSG_UPD_NOBITS));
3899					return (S_ERROR);
3900				}
3901				phdr->p_filesz = offset - phdr->p_offset;
3902			} else if ((sgp->sg_flags & FLG_SG_PHREQ) == 0)
3903				nobits = TRUE;
3904		}
3905		phdr->p_memsz = offset - hshdr->sh_offset;
3906
3907		/*
3908		 * If this is the first loadable segment of a dynamic object,
3909		 * or an interpreter has been specified (a static object built
3910		 * with an interpreter will still be given a PT_HDR entry), then
3911		 * compensate for the elf header and program header array.  Both
3912		 * of these are actually part of the loadable segment as they
3913		 * may be inspected by the interpreter.  Adjust the segments
3914		 * size and offset accordingly.
3915		 */
3916		if ((_phdr == NULL) && (phdr->p_type == PT_LOAD) &&
3917		    ((ofl->ofl_osinterp) || (flags & FLG_OF_DYNAMIC)) &&
3918		    (!(ofl->ofl_dtflags_1 & DF_1_NOHDR))) {
3919			size = (Addr)S_ROUND((phdrsz + ehdrsz),
3920			    hshdr->sh_addralign);
3921			phdr->p_offset -= size;
3922			phdr->p_filesz += size;
3923			phdr->p_memsz += size;
3924		}
3925
3926		/*
3927		 * If segment size symbols are required (specified via a
3928		 * mapfile) update their value.
3929		 */
3930		for (APLIST_TRAVERSE(sgp->sg_sizesym, idx2, sdp))
3931			sdp->sd_sym->st_value = phdr->p_memsz;
3932
3933		/*
3934		 * If no file content has been assigned to this segment (it
3935		 * only contains no-bits sections), then reset the offset for
3936		 * consistency.
3937		 */
3938		if (phdr->p_filesz == 0)
3939			phdr->p_offset = 0;
3940
3941		/*
3942		 * If a virtual address has been specified for this segment
3943		 * from a mapfile use it and make sure the previous segment
3944		 * does not run into this segment.
3945		 */
3946		if (phdr->p_type == PT_LOAD) {
3947			if ((sgp->sg_flags & FLG_SG_P_VADDR)) {
3948				if (_phdr && (vaddr > phdr->p_vaddr) &&
3949				    (phdr->p_type == PT_LOAD))
3950					eprintf(ofl->ofl_lml, ERR_WARNING,
3951					    MSG_INTL(MSG_UPD_SEGOVERLAP),
3952					    ofl->ofl_name, EC_ADDR(vaddr),
3953					    sgp->sg_name,
3954					    EC_ADDR(phdr->p_vaddr));
3955				vaddr = phdr->p_vaddr;
3956				phdr->p_align = 0;
3957			} else {
3958				vaddr = phdr->p_vaddr =
3959				    (Addr)S_ROUND(vaddr, phdr->p_align);
3960			}
3961		}
3962
3963		/*
3964		 * Adjust the address offset and p_align if needed.
3965		 */
3966		if (((sgp->sg_flags & FLG_SG_P_VADDR) == 0) &&
3967		    ((ofl->ofl_dtflags_1 & DF_1_NOHDR) == 0)) {
3968			if (phdr->p_align != 0)
3969				vaddr += phdr->p_offset % phdr->p_align;
3970			else
3971				vaddr += phdr->p_offset;
3972			phdr->p_vaddr = vaddr;
3973		}
3974
3975		/*
3976		 * If an interpreter is required set the virtual address of the
3977		 * PT_PHDR program header now that we know the virtual address
3978		 * of the loadable segment that contains it.  Update the
3979		 * PT_SUNWCAP header similarly.
3980		 */
3981		if ((_phdr == NULL) && (phdr->p_type == PT_LOAD)) {
3982			_phdr = phdr;
3983
3984			if ((ofl->ofl_dtflags_1 & DF_1_NOHDR) == 0) {
3985				if (ofl->ofl_osinterp)
3986					ofl->ofl_phdr[0].p_vaddr =
3987					    vaddr + ehdrsz;
3988
3989				/*
3990				 * Finally, if we're creating a dynamic object
3991				 * (or a static object in which an interpreter
3992				 * is specified) update the vaddr to reflect
3993				 * the address of the first section within this
3994				 * segment.
3995				 */
3996				if ((ofl->ofl_osinterp) ||
3997				    (flags & FLG_OF_DYNAMIC))
3998					vaddr += size;
3999			} else {
4000				/*
4001				 * If the DF_1_NOHDR flag was set, and an
4002				 * interpreter is being generated, the PT_PHDR
4003				 * will not be part of any loadable segment.
4004				 */
4005				if (ofl->ofl_osinterp) {
4006					ofl->ofl_phdr[0].p_vaddr = 0;
4007					ofl->ofl_phdr[0].p_memsz = 0;
4008					ofl->ofl_phdr[0].p_flags = 0;
4009				}
4010			}
4011		}
4012
4013		/*
4014		 * Ensure the ELF entry point defaults to zero.  Typically, this
4015		 * value is overridden in update_oehdr() to one of the standard
4016		 * entry points.  Historically, this default was set to the
4017		 * address of first executable section, but this has since been
4018		 * found to be more confusing than it is helpful.
4019		 */
4020		ehdr->e_entry = 0;
4021
4022		DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
4023
4024		/*
4025		 * Traverse the output section descriptors for this segment so
4026		 * that we can update the section headers addresses.  We've
4027		 * calculated the virtual address of the initial section within
4028		 * this segment, so each successive section can be calculated
4029		 * based on their offsets from each other.
4030		 */
4031		secndx = 0;
4032		hshdr = 0;
4033		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
4034			Shdr	*shdr = osp->os_shdr;
4035
4036			if (shdr->sh_link)
4037				shdr->sh_link = translate_link(ofl, osp,
4038				    shdr->sh_link, MSG_INTL(MSG_FIL_INVSHLINK));
4039
4040			if (shdr->sh_info && (shdr->sh_flags & SHF_INFO_LINK))
4041				shdr->sh_info = translate_link(ofl, osp,
4042				    shdr->sh_info, MSG_INTL(MSG_FIL_INVSHINFO));
4043
4044			if (!(flags & FLG_OF_RELOBJ) &&
4045			    (phdr->p_type == PT_LOAD)) {
4046				if (hshdr)
4047					vaddr += (shdr->sh_offset -
4048					    hshdr->sh_offset);
4049
4050				shdr->sh_addr = vaddr;
4051				hshdr = shdr;
4052			}
4053
4054			DBG_CALL(Dbg_seg_os(ofl, osp, secndx));
4055			secndx++;
4056		}
4057
4058		/*
4059		 * Establish the virtual address of the end of the last section
4060		 * in this segment so that the next segments offset can be
4061		 * calculated from this.
4062		 */
4063		if (hshdr)
4064			vaddr += hshdr->sh_size;
4065
4066		/*
4067		 * Output sections for this segment complete.  Adjust the
4068		 * virtual offset for the last sections size, and make sure we
4069		 * haven't exceeded any maximum segment length specification.
4070		 */
4071		if ((sgp->sg_length != 0) && (sgp->sg_length < phdr->p_memsz)) {
4072			eprintf(ofl->ofl_lml, ERR_FATAL,
4073			    MSG_INTL(MSG_UPD_LARGSIZE), ofl->ofl_name,
4074			    sgp->sg_name, EC_XWORD(phdr->p_memsz),
4075			    EC_XWORD(sgp->sg_length));
4076			return (S_ERROR);
4077		}
4078
4079		if (phdr->p_type == PT_NOTE) {
4080			phdr->p_vaddr = 0;
4081			phdr->p_paddr = 0;
4082			phdr->p_align = 0;
4083			phdr->p_memsz = 0;
4084		}
4085
4086		if ((phdr->p_type != PT_NULL) && !(flags & FLG_OF_RELOBJ))
4087			ofl->ofl_phdr[phdrndx++] = *phdr;
4088	}
4089
4090	/*
4091	 * Update any new output sections.  When building the initial output
4092	 * image, a number of sections were created but left uninitialized (eg.
4093	 * .dynsym, .dynstr, .symtab, .symtab, etc.).  Here we update these
4094	 * sections with the appropriate data.  Other sections may still be
4095	 * modified via reloc_process().
4096	 *
4097	 * Copy the interpreter name into the .interp section.
4098	 */
4099	if (ofl->ofl_interp)
4100		(void) strcpy((char *)ofl->ofl_osinterp->os_outdata->d_buf,
4101		    ofl->ofl_interp);
4102
4103	/*
4104	 * Update the .shstrtab, .strtab and .dynstr sections.
4105	 */
4106	update_ostrtab(ofl->ofl_osshstrtab, ofl->ofl_shdrsttab, 0);
4107	update_ostrtab(ofl->ofl_osstrtab, ofl->ofl_strtab, 0);
4108	update_ostrtab(ofl->ofl_osdynstr, ofl->ofl_dynstrtab, DYNSTR_EXTRA_PAD);
4109
4110	/*
4111	 * Build any output symbol tables, the symbols information is copied
4112	 * and updated into the new output image.
4113	 */
4114	if ((etext = update_osym(ofl)) == (Addr)S_ERROR)
4115		return (S_ERROR);
4116
4117	/*
4118	 * If we have an PT_INTERP phdr, update it now from the associated
4119	 * section information.
4120	 */
4121	if (intpsgp) {
4122		Phdr	*phdr = &(intpsgp->sg_phdr);
4123		Shdr	*shdr = ofl->ofl_osinterp->os_shdr;
4124
4125		phdr->p_vaddr = shdr->sh_addr;
4126		phdr->p_offset = shdr->sh_offset;
4127		phdr->p_memsz = phdr->p_filesz = shdr->sh_size;
4128		phdr->p_flags = PF_R;
4129
4130		DBG_CALL(Dbg_seg_entry(ofl, intpsndx, intpsgp));
4131		ofl->ofl_phdr[intppndx] = *phdr;
4132	}
4133
4134	/*
4135	 * If we have a PT_SUNWDTRACE phdr, update it now with the address of
4136	 * the symbol.  It's only now been updated via update_sym().
4137	 */
4138	if (dtracesgp) {
4139		Phdr		*aphdr, *phdr = &(dtracesgp->sg_phdr);
4140		Sym_desc	*sdp = ofl->ofl_dtracesym;
4141
4142		phdr->p_vaddr = sdp->sd_sym->st_value;
4143		phdr->p_memsz = sdp->sd_sym->st_size;
4144
4145		/*
4146		 * Take permissions from the segment that the symbol is
4147		 * associated with.
4148		 */
4149		aphdr = &sdp->sd_isc->is_osdesc->os_sgdesc->sg_phdr;
4150		assert(aphdr);
4151		phdr->p_flags = aphdr->p_flags;
4152
4153		DBG_CALL(Dbg_seg_entry(ofl, dtracesndx, dtracesgp));
4154		ofl->ofl_phdr[dtracepndx] = *phdr;
4155	}
4156
4157	/*
4158	 * If we have a PT_SUNWCAP phdr, update it now from the associated
4159	 * section information.
4160	 */
4161	if (capsgp) {
4162		Phdr	*phdr = &(capsgp->sg_phdr);
4163		Shdr	*shdr = ofl->ofl_oscap->os_shdr;
4164
4165		phdr->p_vaddr = shdr->sh_addr;
4166		phdr->p_offset = shdr->sh_offset;
4167		phdr->p_memsz = phdr->p_filesz = shdr->sh_size;
4168		phdr->p_flags = PF_R;
4169
4170		DBG_CALL(Dbg_seg_entry(ofl, capsndx, capsgp));
4171		ofl->ofl_phdr[cappndx] = *phdr;
4172	}
4173
4174	/*
4175	 * Update the GROUP sections.
4176	 */
4177	if (update_ogroup(ofl) == S_ERROR)
4178		return (S_ERROR);
4179
4180	/*
4181	 * Update Move Table.
4182	 */
4183	if (ofl->ofl_osmove || ofl->ofl_isparexpn)
4184		update_move(ofl);
4185
4186	/*
4187	 * Build any output headers, version information, dynamic structure and
4188	 * syminfo structure.
4189	 */
4190	if (update_oehdr(ofl) == S_ERROR)
4191		return (S_ERROR);
4192	if (!(flags & FLG_OF_NOVERSEC)) {
4193		if ((flags & FLG_OF_VERDEF) &&
4194		    (update_overdef(ofl) == S_ERROR))
4195			return (S_ERROR);
4196		if ((flags & FLG_OF_VERNEED) &&
4197		    (update_overneed(ofl) == S_ERROR))
4198			return (S_ERROR);
4199		if (flags & (FLG_OF_VERNEED | FLG_OF_VERDEF))
4200			update_oversym(ofl);
4201	}
4202	if (flags & FLG_OF_DYNAMIC) {
4203		if (update_odynamic(ofl) == S_ERROR)
4204			return (S_ERROR);
4205	}
4206	if (ofl->ofl_ossyminfo) {
4207		if (update_osyminfo(ofl) == S_ERROR)
4208			return (S_ERROR);
4209	}
4210
4211	/*
4212	 * Update capabilities information if required.
4213	 */
4214	if (ofl->ofl_oscap)
4215		update_oscap(ofl);
4216	if (ofl->ofl_oscapinfo)
4217		update_oscapinfo(ofl);
4218
4219	/*
4220	 * Sanity test: the first and last data byte of a string table
4221	 * must be NULL.
4222	 */
4223	assert((ofl->ofl_osshstrtab == NULL) ||
4224	    (*((char *)ofl->ofl_osshstrtab->os_outdata->d_buf) == '\0'));
4225	assert((ofl->ofl_osshstrtab == NULL) ||
4226	    (*(((char *)ofl->ofl_osshstrtab->os_outdata->d_buf) +
4227	    ofl->ofl_osshstrtab->os_outdata->d_size - 1) == '\0'));
4228
4229	assert((ofl->ofl_osstrtab == NULL) ||
4230	    (*((char *)ofl->ofl_osstrtab->os_outdata->d_buf) == '\0'));
4231	assert((ofl->ofl_osstrtab == NULL) ||
4232	    (*(((char *)ofl->ofl_osstrtab->os_outdata->d_buf) +
4233	    ofl->ofl_osstrtab->os_outdata->d_size - 1) == '\0'));
4234
4235	assert((ofl->ofl_osdynstr == NULL) ||
4236	    (*((char *)ofl->ofl_osdynstr->os_outdata->d_buf) == '\0'));
4237	assert((ofl->ofl_osdynstr == NULL) ||
4238	    (*(((char *)ofl->ofl_osdynstr->os_outdata->d_buf) +
4239	    ofl->ofl_osdynstr->os_outdata->d_size - DYNSTR_EXTRA_PAD - 1) ==
4240	    '\0'));
4241
4242	/*
4243	 * Emit Strtab diagnostics.
4244	 */
4245	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osshstrtab,
4246	    ofl->ofl_shdrsttab));
4247	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osstrtab,
4248	    ofl->ofl_strtab));
4249	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osdynstr,
4250	    ofl->ofl_dynstrtab));
4251
4252	/*
4253	 * Initialize the section headers string table index within the elf
4254	 * header.
4255	 */
4256	/* LINTED */
4257	if ((shscnndx = elf_ndxscn(ofl->ofl_osshstrtab->os_scn)) <
4258	    SHN_LORESERVE) {
4259		ofl->ofl_nehdr->e_shstrndx =
4260		    /* LINTED */
4261		    (Half)shscnndx;
4262	} else {
4263		/*
4264		 * If the STRTAB section index doesn't fit into
4265		 * e_shstrndx, then we store it in 'shdr[0].st_link'.
4266		 */
4267		Elf_Scn	*scn;
4268		Shdr	*shdr0;
4269
4270		if ((scn = elf_getscn(ofl->ofl_elf, 0)) == NULL) {
4271			eprintf(ofl->ofl_lml, ERR_ELF,
4272			    MSG_INTL(MSG_ELF_GETSCN), ofl->ofl_name);
4273			return (S_ERROR);
4274		}
4275		if ((shdr0 = elf_getshdr(scn)) == NULL) {
4276			eprintf(ofl->ofl_lml, ERR_ELF,
4277			    MSG_INTL(MSG_ELF_GETSHDR), ofl->ofl_name);
4278			return (S_ERROR);
4279		}
4280		ofl->ofl_nehdr->e_shstrndx = SHN_XINDEX;
4281		shdr0->sh_link = shscnndx;
4282	}
4283
4284	return ((uintptr_t)etext);
4285}
4286