1441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project/* Finalize operations on the assembler context, free all resources. 2cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Copyright (C) 2002, 2003, 2005 Red Hat, Inc. 3cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng This file is part of Red Hat elfutils. 4441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Written by Ulrich Drepper <drepper@redhat.com>, 2002. 5441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 6cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is free software; you can redistribute it and/or modify 7cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng it under the terms of the GNU General Public License as published by the 8cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Free Software Foundation; version 2 of the License. 9441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 10cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is distributed in the hope that it will be useful, but 11cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 12cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng General Public License for more details. 14cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 15cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng You should have received a copy of the GNU General Public License along 16cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng with Red Hat elfutils; if not, write to the Free Software Foundation, 17cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 18cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 19cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is an included package of the Open Invention Network. 20cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng An included package of the Open Invention Network is a package for which 21cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Open Invention Network licensees cross-license their patents. No patent 22cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng license is granted, either expressly or impliedly, by designation as an 23cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng included package. Should you wish to participate in the Open Invention 24cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Network licensing program, please visit www.openinventionnetwork.com 25cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng <http://www.openinventionnetwork.com>. */ 26441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 27441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#ifdef HAVE_CONFIG_H 28441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# include <config.h> 29441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#endif 30441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 31441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <assert.h> 32441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <error.h> 33441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <libintl.h> 34441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <stdio.h> 35441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <stdlib.h> 36441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <string.h> 37441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <unistd.h> 38441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <sys/stat.h> 39441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 40441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <libasmP.h> 41441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <libelf.h> 42441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <system.h> 43441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 44441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 45441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic int 46cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengtext_end (AsmCtx_t *ctx __attribute__ ((unused))) 47441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 48cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng if (fclose (ctx->out.file) != 0) 49cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 50cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_IOERROR); 51cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 52cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 53cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 54441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return 0; 55441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 56441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 57441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 58441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic int 59441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectbinary_end (AsmCtx_t *ctx) 60441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 61441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project void *symtab = NULL; 62441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct Ebl_Strent *symscn_strent = NULL; 63441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct Ebl_Strent *strscn_strent = NULL; 64441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct Ebl_Strent *xndxscn_strent = NULL; 65441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *shstrscn; 66441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct Ebl_Strent *shstrscn_strent; 67441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project size_t shstrscnndx; 68441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project size_t symscnndx = 0; 69441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project size_t strscnndx = 0; 70441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project size_t xndxscnndx = 0; 71441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Data *data; 72441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Data *shstrtabdata; 73441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Data *strtabdata = NULL; 74441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Data *xndxdata = NULL; 75441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Shdr shdr_mem; 76441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Shdr *shdr; 77441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Ehdr ehdr_mem; 78441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Ehdr *ehdr; 79441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScn_t *asmscn; 80441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int result = 0; 81441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 82441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Iterate over the created sections and compute the offsets of the 83441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project various subsections and fill in the content. */ 84441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project for (asmscn = ctx->section_list; asmscn != NULL; asmscn = asmscn->allnext) 85441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 86441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#if 0 87441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn = elf_getscn (ctx->out.elf, asmscn->data.main.scnndx); 88441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#else 89441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn = asmscn->data.main.scn; 90441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#endif 91441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project off_t offset = 0; 92441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScn_t *asmsubscn = asmscn; 93441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 94441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 95441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 96441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct AsmData *content = asmsubscn->content; 97441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project bool first = true; 98441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 99441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project offset = ((offset + asmsubscn->max_align - 1) 100441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project & ~(asmsubscn->max_align - 1)); 101441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 102441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Update the offset for this subsection. This field now 103441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project stores the offset of the first by in this subsection. */ 104441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project asmsubscn->offset = offset; 105441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 106441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Note that the content list is circular. */ 107441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (content != NULL) 108441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 109441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 110441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Data *newdata = elf_newdata (scn); 111441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 112441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (newdata == NULL) 113cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 114cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 115cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 116cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 117441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 118441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project newdata->d_buf = content->data; 119441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project newdata->d_type = ELF_T_BYTE; 120441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project newdata->d_size = content->len; 121441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project newdata->d_off = offset; 122441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project newdata->d_align = first ? asmsubscn->max_align : 1; 123441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 124441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project offset += content->len; 125441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 126441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((content = content->next) != asmsubscn->content); 127441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 128441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((asmsubscn = asmsubscn->subnext) != NULL); 129441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 130441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 131441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 132441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the symbol table if necessary. */ 133441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (ctx->nsymbol_tab > 0) 134441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 135441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the symbol table and string table section names. */ 136441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project symscn_strent = ebl_strtabadd (ctx->section_strtab, ".symtab", 8); 137441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project strscn_strent = ebl_strtabadd (ctx->section_strtab, ".strtab", 8); 138441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 139441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the symbol string table section. */ 140cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Elf_Scn *strscn = elf_newscn (ctx->out.elf); 141441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project strtabdata = elf_newdata (strscn); 142441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (strscn, &shdr_mem); 143441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (strtabdata == NULL || shdr == NULL) 144cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 145cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 146cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 147cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 148441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project strscnndx = elf_ndxscn (strscn); 149441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 150441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ebl_strtabfinalize (ctx->symbol_strtab, strtabdata); 151441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 152441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_type = SHT_STRTAB; 153441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (shdr->sh_entsize == 0); 154441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 155441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (strscn, shdr); 156441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 157441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the symbol table section. */ 158cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Elf_Scn *symscn = elf_newscn (ctx->out.elf); 159441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data = elf_newdata (symscn); 160441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (symscn, &shdr_mem); 161441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (data == NULL || shdr == NULL) 162cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 163cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 164cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 165cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 166441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project symscnndx = elf_ndxscn (symscn); 167441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 168441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We know how many symbols there will be in the symbol table. */ 169441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_size = gelf_fsize (ctx->out.elf, ELF_T_SYM, 170441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ctx->nsymbol_tab + 1, EV_CURRENT); 171441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project symtab = malloc (data->d_size); 172441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (symtab == NULL) 173441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 174441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_buf = symtab; 175441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_type = ELF_T_SYM; 176441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_off = 0; 177441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 178441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Clear the first entry. */ 179cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng GElf_Sym syment; 180441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project memset (&syment, '\0', sizeof (syment)); 181441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_sym (data, 0, &syment); 182441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 183441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Iterate over the symbol table. */ 184cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng void *runp = NULL; 185cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng int ptr_local = 1; /* Start with index 1; zero remains unused. */ 186cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng int ptr_nonlocal = ctx->nsymbol_tab; 187cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng uint32_t *xshndx = NULL; 188cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng AsmSym_t *sym; 189441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((sym = asm_symbol_tab_iterate (&ctx->symbol_tab, &runp)) != NULL) 190441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (asm_emit_symbol_p (ebl_string (sym->strent))) 191441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 192441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (ptr_local <= ptr_nonlocal); 193441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 194441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_name = ebl_strtaboffset (sym->strent); 195441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_info = GELF_ST_INFO (sym->binding, sym->type); 196441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_other = 0; 197441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_value = sym->scn->offset + sym->offset; 198441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_size = sym->size; 199441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 200441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Add local symbols at the beginning, the other from 201441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project the end. */ 202cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng int ptr = sym->binding == STB_LOCAL ? ptr_local++ : ptr_nonlocal--; 203441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 204441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Determine the section index. We have to handle the 205441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project overflow correctly. */ 206cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Elf_Scn *scn = (sym->scn->subsection_id == 0 207cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng ? sym->scn->data.main.scn 208cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng : sym->scn->data.up->data.main.scn); 209441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 210cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Elf32_Word ndx; 211441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (scn == ASM_ABS_SCN)) 212441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ndx = SHN_ABS; 213441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project else if (unlikely (scn == ASM_COM_SCN)) 214441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ndx = SHN_COMMON; 215441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project else if (unlikely ((ndx = elf_ndxscn (scn)) >= SHN_LORESERVE)) 216441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 217441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (xshndx == NULL)) 218441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 219441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* The extended section index section does not yet 220441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project exist. */ 221441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *xndxscn; 222441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 223441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxscn = elf_newscn (ctx->out.elf); 224441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxdata = elf_newdata (xndxscn); 225441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (xndxscn, &shdr_mem); 226441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (xndxdata == NULL || shdr == NULL) 227cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 228cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 229cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 230cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 231441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxscnndx = elf_ndxscn (xndxscn); 232441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 233441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_type = SHT_SYMTAB_SHNDX; 234441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_entsize = sizeof (Elf32_Word); 235441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_addralign = sizeof (Elf32_Word); 236441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_link = symscnndx; 237441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 238441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (xndxscn, shdr); 239441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 240441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxscn_strent = ebl_strtabadd (ctx->section_strtab, 241441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ".symtab_shndx", 14); 242441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 243441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Note that using 'elf32_fsize' instead of 244441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 'gelf_fsize' here is correct. */ 245441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxdata->d_size = elf32_fsize (ELF_T_WORD, 246441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ctx->nsymbol_tab + 1, 247441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project EV_CURRENT); 248441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xshndx = xndxdata->d_buf = calloc (1, xndxdata->d_size); 249441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (xshndx == NULL) 250441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 251441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Using ELF_T_WORD here relies on the fact that the 252441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 32- and 64-bit types are the same size. */ 253441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxdata->d_type = ELF_T_WORD; 254441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xndxdata->d_off = 0; 255441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 256441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 257441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Store the real section index in the extended setion 258441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project index table. */ 259441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert ((size_t) ptr < ctx->nsymbol_tab + 1); 260441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project xshndx[ptr] = ndx; 261441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 262441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* And signal that this happened. */ 263441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ndx = SHN_XINDEX; 264441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 265441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project syment.st_shndx = ndx; 266441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 267441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Remember where we put the symbol. */ 268441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project sym->symidx = ptr; 269441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 270441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_sym (data, ptr, &syment); 271441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 272441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 273441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (ptr_local == ptr_nonlocal + 1); 274441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 275441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_type = SHT_SYMTAB; 276441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_link = strscnndx; 277441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_info = ptr_local; 278441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_entsize = gelf_fsize (ctx->out.elf, ELF_T_SYM, 1, EV_CURRENT); 279441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_addralign = gelf_fsize (ctx->out.elf, ELF_T_ADDR, 1, 280441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project EV_CURRENT); 281441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 282441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (symscn, shdr); 283441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 284441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 285441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 286441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the section header string table section and fill in the 287441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project references in the section headers. */ 288441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shstrscn = elf_newscn (ctx->out.elf); 289441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shstrtabdata = elf_newdata (shstrscn); 290441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (shstrscn, &shdr_mem); 291441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (shstrscn == NULL || shstrtabdata == NULL || shdr == NULL) 292cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 293cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 294cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 295cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 296441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 297441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 298441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Add the name of the section header string table. */ 299441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shstrscn_strent = ebl_strtabadd (ctx->section_strtab, ".shstrtab", 10); 300441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 301441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ebl_strtabfinalize (ctx->section_strtab, shstrtabdata); 302441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 303441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_type = SHT_STRTAB; 304441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (shdr->sh_entsize == 0); 305441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (shstrscn_strent); 306441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 307441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (shstrscn, shdr); 308441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 309441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 310441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the section groups. */ 311441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (ctx->groups != NULL) 312441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 313441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScnGrp_t *runp = ctx->groups->next; 314441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 315441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 316441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 317441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn; 318441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf32_Word *grpdata; 319441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 320441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scn = runp->scn; 321441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (scn != NULL); 322441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 323441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (shdr != NULL); 324441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 325441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data = elf_newdata (scn); 326441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (data == NULL) 327cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 328cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __libasm_seterrno (ASM_E_LIBELF); 329cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return -1; 330cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 331441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 332441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* It is correct to use 'elf32_fsize' instead of 'gelf_fsize' 333441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project here. */ 334441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_size = elf32_fsize (ELF_T_WORD, runp->nmembers + 1, 335441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project EV_CURRENT); 336441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project grpdata = data->d_buf = malloc (data->d_size); 337441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (grpdata == NULL) 338441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 339441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_type = ELF_T_WORD; 340441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_off = 0; 341441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data->d_align = elf32_fsize (ELF_T_WORD, 1, EV_CURRENT); 342441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 343441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* The first word of the section is filled with the flag word. */ 344441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project *grpdata++ = runp->flags; 345441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 346441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (runp->members != NULL) 347441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 348441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScn_t *member = runp->members->data.main.next_in_group; 349441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 350441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 351441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 352441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Only sections, not subsections, can be registered 353441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project as member of a group. The subsections get 354441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project automatically included. */ 355441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (member->subsection_id == 0); 356441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 357441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project *grpdata++ = elf_ndxscn (member->data.main.scn); 358441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 359441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((member = member->data.main.next_in_group) 360441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project != runp->members->data.main.next_in_group); 361441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 362441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 363441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Construct the section header. */ 364441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (runp->strent); 365441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_type = SHT_GROUP; 366441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_flags = 0; 367441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_link = symscnndx; 368441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* If the user did not specify a signature we use the initial 369441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project empty symbol in the symbol table as the signature. */ 370441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_info = (runp->signature != NULL 371441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? runp->signature->symidx : 0); 372441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 373441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (scn, shdr); 374441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 375441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((runp = runp->next) != ctx->groups->next); 376441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 377441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 378441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 379441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Add the name to the symbol section. */ 380441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (likely (symscnndx != 0)) 381441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 382441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn = elf_getscn (ctx->out.elf, symscnndx); 383441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 384441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 385441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 386441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (symscn_strent); 387441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 388441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (scn, shdr); 389441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 390441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 391441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Add the name to the string section. */ 392441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (strscnndx != 0); 393441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scn = elf_getscn (ctx->out.elf, strscnndx); 394441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 395441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 396441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 397441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (strscn_strent); 398441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 399441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (scn, shdr); 400441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 401441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 402441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Add the name to the extended symbol index section. */ 403441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (xndxscnndx != 0) 404441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 405441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scn = elf_getscn (ctx->out.elf, xndxscnndx); 406441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 407441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 408441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 409441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (xndxscn_strent); 410441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 411441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (scn, shdr); 412441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 413441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 414441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 415441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 416441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Iterate over the created sections and fill in the names. */ 417441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project for (asmscn = ctx->section_list; asmscn != NULL; asmscn = asmscn->allnext) 418441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 419441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (asmscn->data.main.scn, &shdr_mem); 420441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* This better should not fail. */ 421441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (shdr != NULL); 422441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 423441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_name = ebl_strtaboffset (asmscn->data.main.strent); 424441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 425441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We now know the maximum alignment. */ 426441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_addralign = asmscn->max_align; 427441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 428441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (asmscn->data.main.scn, shdr); 429441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 430441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 431441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Put the reference to the section header string table in the ELF 432441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project header. */ 433441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ehdr = gelf_getehdr (ctx->out.elf, &ehdr_mem); 434441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (ehdr != NULL); 435441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 436441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shstrscnndx = elf_ndxscn (shstrscn); 437441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (shstrscnndx > SHN_HIRESERVE) 438441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project || unlikely (shstrscnndx == SHN_XINDEX)) 439441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 440441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* The index of the section header string sectio is too large. */ 441441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn = elf_getscn (ctx->out.elf, 0); 442441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 443441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Get the header for the zeroth section. */ 444441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 445441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* This better does not fail. */ 446441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project assert (shdr != NULL); 447441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 448441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* The sh_link field of the zeroth section header contains the value. */ 449441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr->sh_link = shstrscnndx; 450441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 451441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) gelf_update_shdr (scn, shdr); 452441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 453441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* This is the sign for the overflow. */ 454441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ehdr->e_shstrndx = SHN_XINDEX; 455441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 456441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project else 457441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ehdr->e_shstrndx = elf_ndxscn (shstrscn); 458441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 459441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project gelf_update_ehdr (ctx->out.elf, ehdr); 460441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 461441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Write out the ELF file. */ 462441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (elf_update (ctx->out.elf, ELF_C_WRITE_MMAP)) < 0) 463441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 464441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project __libasm_seterrno (ASM_E_LIBELF); 465441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = -1; 466441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 467441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 468441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We do not need the section header and symbol string tables anymore. */ 469441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (shstrtabdata->d_buf); 470441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (strtabdata != NULL) 471441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (strtabdata->d_buf); 472441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We might have allocated the extended symbol table index. */ 473441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (xndxdata != NULL) 474441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (xndxdata->d_buf); 475441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 476441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Free section groups memory. */ 477441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScnGrp_t *scngrp = ctx->groups; 478441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (scngrp != NULL) 479441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 480441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (elf_getdata (scngrp->scn, NULL)->d_buf); 481441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((scngrp = scngrp->next) != ctx->groups); 482441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 483441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Finalize the ELF handling. */ 484441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (elf_end (ctx->out.elf)) != 0) 485441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 486441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project __libasm_seterrno (ASM_E_LIBELF); 487441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = -1; 488441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 489441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 490441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Free the temporary resources. */ 491441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (symtab); 492441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 493441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return result; 494441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 495441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 496441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 497441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectint 498441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectasm_end (ctx) 499441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmCtx_t *ctx; 500441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 501441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int result; 502441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 503441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (ctx == NULL) 504441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Something went wrong earlier. */ 505441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 506441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 507441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = unlikely (ctx->textp) ? text_end (ctx) : binary_end (ctx); 508441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (result != 0) 509441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return result; 510441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 511441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Make the new file globally readable and user/group-writable. */ 512441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (fchmod (ctx->fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) != 0) 513441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 514441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project __libasm_seterrno (ASM_E_CANNOT_CHMOD); 515441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 516441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 517441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 518441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Rename output file. */ 519441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (rename (ctx->tmp_fname, ctx->fname) != 0) 520441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 521441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project __libasm_seterrno (ASM_E_CANNOT_RENAME); 522441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return -1; 523441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 524441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 525441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Free the resources. */ 526441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project __libasm_finictx (ctx); 527441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 528441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return 0; 529441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 530441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 531441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 532441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic void 533441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectfree_section (AsmScn_t *scnp) 534441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 535441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project void *oldp; 536441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 537441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (scnp->subnext != NULL) 538441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free_section (scnp->subnext); 539441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 540441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project struct AsmData *data = scnp->content; 541441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (data != NULL) 542441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 543441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 544441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project oldp = data; 545441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project data = data->next; 546441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (oldp); 547441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 548441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while (oldp != scnp->content); 549441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 550441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (scnp); 551441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 552441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 553441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 554441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectvoid 555441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project__libasm_finictx (ctx) 556441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmCtx_t *ctx; 557441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 558441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Iterate through section table and free individual entries. */ 559441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScn_t *scn = ctx->section_list; 560441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while (scn != NULL) 561441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 562441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScn_t *oldp = scn; 563441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scn = scn->allnext; 564441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free_section (oldp); 565441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 566441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 567441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Free the resources of the symbol table. */ 568441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project void *runp = NULL; 569441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmSym_t *sym; 570441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while ((sym = asm_symbol_tab_iterate (&ctx->symbol_tab, &runp)) != NULL) 571441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (sym); 572441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project asm_symbol_tab_free (&ctx->symbol_tab); 573441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 574441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 575441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Free section groups. */ 576441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScnGrp_t *scngrp = ctx->groups; 577441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (scngrp != NULL) 578441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do 579441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 580441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmScnGrp_t *oldp = scngrp; 581441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 582441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scngrp = scngrp->next; 583441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (oldp); 584441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 585441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project while (scngrp != ctx->groups); 586441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 587441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 588441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (unlikely (ctx->textp)) 589441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 590441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Close the stream. */ 591441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project fclose (ctx->out.file); 592441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 593441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project else 594441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 595441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Close the output file. */ 596441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* XXX We should test for errors here but what would we do if we'd 597441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project find any. */ 598441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (void) close (ctx->fd); 599441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 600441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* And the string tables. */ 601441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ebl_strtabfree (ctx->section_strtab); 602441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ebl_strtabfree (ctx->symbol_strtab); 603441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 604441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 605441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Initialize the lock. */ 606441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project rwlock_fini (ctx->lock); 607441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 608441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Finally free the data structure. */ 609441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project free (ctx); 610441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 611