1999-05-03 09:29:11 +02:00
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# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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cat >e${EMULATION_NAME}.c <<EOF
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/* This file is is generated by a shell script. DO NOT EDIT! */
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/* AIX emulation code for ${EMULATION_NAME}
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2000-07-11 05:42:41 +02:00
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Copyright (C) 1991, 93, 95, 96, 97, 98, 99, 2000
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Free Software Foundation, Inc.
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1999-05-03 09:29:11 +02:00
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Written by Steve Chamberlain <sac@cygnus.com>
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AIX support by Ian Lance Taylor <ian@cygnus.com>
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This file is part of GLD, the Gnu Linker.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define TARGET_IS_${EMULATION_NAME}
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#include "bfd.h"
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#include "sysdep.h"
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#include "libiberty.h"
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#include "getopt.h"
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#include "obstack.h"
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#include "bfdlink.h"
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#include <ctype.h>
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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2000-07-11 05:42:41 +02:00
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#include "ldfile.h"
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#include "ldemul.h"
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1999-05-03 09:29:11 +02:00
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#include "ldctor.h"
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#include "ldgram.h"
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static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
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static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
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static void gld${EMULATION_NAME}_after_open PARAMS ((void));
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static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
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static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean));
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static void gld${EMULATION_NAME}_free PARAMS ((PTR));
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static void gld${EMULATION_NAME}_find_relocs
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PARAMS ((lang_statement_union_type *));
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static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
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static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
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/* The file alignment required for each section. */
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static unsigned long file_align;
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/* The maximum size the stack is permitted to grow. This is stored in
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the a.out header. */
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static unsigned long maxstack;
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/* The maximum data size. This is stored in the a.out header. */
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static unsigned long maxdata;
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/* Whether to perform garbage collection. */
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static int gc = 1;
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/* The module type to use. */
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static unsigned short modtype = ('1' << 8) | 'L';
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/* Whether the .text section must be read-only (i.e., no relocs
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permitted). */
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static int textro;
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/* Whether to implement Unix like linker semantics. */
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static int unix_ld;
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/* Structure used to hold import file list. */
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struct filelist
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{
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struct filelist *next;
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const char *name;
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};
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/* List of import files. */
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static struct filelist *import_files;
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/* List of export symbols read from the export files. */
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struct export_symbol_list
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{
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struct export_symbol_list *next;
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const char *name;
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boolean syscall;
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};
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static struct export_symbol_list *export_symbols;
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/* This routine is called before anything else is done. */
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static void
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gld${EMULATION_NAME}_before_parse()
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{
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#ifndef TARGET_ /* I.e., if not generic. */
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ldfile_output_architecture = bfd_arch_${ARCH};
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#endif /* not TARGET_ */
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config.has_shared = true;
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}
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/* Handle AIX specific options. */
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static int
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gld${EMULATION_NAME}_parse_args (argc, argv)
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int argc;
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char **argv;
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{
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int prevoptind = optind;
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int prevopterr = opterr;
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int indx;
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int longind;
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int optc;
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long val;
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char *end;
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#define OPTION_IGNORE (300)
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#define OPTION_AUTOIMP (OPTION_IGNORE + 1)
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#define OPTION_ERNOTOK (OPTION_AUTOIMP + 1)
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#define OPTION_EROK (OPTION_ERNOTOK + 1)
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#define OPTION_EXPORT (OPTION_EROK + 1)
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#define OPTION_IMPORT (OPTION_EXPORT + 1)
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#define OPTION_LOADMAP (OPTION_IMPORT + 1)
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#define OPTION_MAXDATA (OPTION_LOADMAP + 1)
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#define OPTION_MAXSTACK (OPTION_MAXDATA + 1)
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#define OPTION_MODTYPE (OPTION_MAXSTACK + 1)
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#define OPTION_NOAUTOIMP (OPTION_MODTYPE + 1)
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#define OPTION_NOSTRCMPCT (OPTION_NOAUTOIMP + 1)
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#define OPTION_PD (OPTION_NOSTRCMPCT + 1)
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#define OPTION_PT (OPTION_PD + 1)
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#define OPTION_STRCMPCT (OPTION_PT + 1)
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#define OPTION_UNIX (OPTION_STRCMPCT + 1)
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static struct option longopts[] = {
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{"basis", no_argument, NULL, OPTION_IGNORE},
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{"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
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{"bcomprld", no_argument, NULL, OPTION_IGNORE},
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{"bcrld", no_argument, NULL, OPTION_IGNORE},
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{"bcror31", no_argument, NULL, OPTION_IGNORE},
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{"bD", required_argument, NULL, OPTION_MAXDATA},
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{"bE", required_argument, NULL, OPTION_EXPORT},
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{"bernotok", no_argument, NULL, OPTION_ERNOTOK},
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{"berok", no_argument, NULL, OPTION_EROK},
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{"berrmsg", no_argument, NULL, OPTION_IGNORE},
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{"bexport", required_argument, NULL, OPTION_EXPORT},
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{"bf", no_argument, NULL, OPTION_ERNOTOK},
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{"bgc", no_argument, &gc, 1},
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{"bh", required_argument, NULL, OPTION_IGNORE},
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{"bhalt", required_argument, NULL, OPTION_IGNORE},
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{"bI", required_argument, NULL, OPTION_IMPORT},
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{"bimport", required_argument, NULL, OPTION_IMPORT},
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{"bl", required_argument, NULL, OPTION_LOADMAP},
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{"bloadmap", required_argument, NULL, OPTION_LOADMAP},
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{"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
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{"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
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{"bM", required_argument, NULL, OPTION_MODTYPE},
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{"bmodtype", required_argument, NULL, OPTION_MODTYPE},
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{"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
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{"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
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{"bnoentry", no_argument, NULL, OPTION_IGNORE},
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{"bnogc", no_argument, &gc, 0},
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{"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
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{"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
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{"bnotextro", no_argument, &textro, 0},
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{"bnro", no_argument, &textro, 0},
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{"bpD", required_argument, NULL, OPTION_PD},
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{"bpT", required_argument, NULL, OPTION_PT},
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{"bro", no_argument, &textro, 1},
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{"bS", required_argument, NULL, OPTION_MAXSTACK},
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{"bso", no_argument, NULL, OPTION_AUTOIMP},
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{"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
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{"btextro", no_argument, &textro, 1},
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{"static", no_argument, NULL, OPTION_NOAUTOIMP},
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{"unix", no_argument, NULL, OPTION_UNIX},
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{NULL, no_argument, NULL, 0}
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};
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/* Options supported by the AIX linker which we do not support: -f,
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-S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
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-bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
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-bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
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-bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
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-bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
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-bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
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-bx, -bX, -bxref. */
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/* If the current option starts with -b, change the first : to an =.
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The AIX linker uses : to separate the option from the argument;
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changing it to = lets us treat it as a getopt option. */
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indx = optind;
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if (indx == 0)
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indx = 1;
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if (indx < argc && strncmp (argv[indx], "-b", 2) == 0)
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{
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char *s;
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for (s = argv[indx]; *s != '\0'; s++)
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{
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if (*s == ':')
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{
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*s = '=';
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break;
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}
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}
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}
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/* We add s and u so to the short options list so that -s and -u on
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the command line do not match -static and -unix. */
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opterr = 0;
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optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind);
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opterr = prevopterr;
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switch (optc)
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{
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case 's':
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case 'u':
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default:
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optind = prevoptind;
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return 0;
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case 0:
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/* Long option which just sets a flag. */
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break;
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case 'D':
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val = strtol (optarg, &end, 0);
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if (*end != '\0')
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einfo ("%P: warning: ignoring invalid -D number %s\n", optarg);
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else if (val != -1)
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lang_section_start (".data", exp_intop (val));
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break;
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case 'H':
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val = strtoul (optarg, &end, 0);
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if (*end != '\0'
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|| (val & (val - 1)) != 0)
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einfo ("%P: warning: ignoring invalid -H number %s\n", optarg);
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else
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file_align = val;
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break;
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case 'K':
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case 'z':
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/* FIXME: This should use the page size for the target system. */
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file_align = 4096;
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break;
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case 'T':
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/* On AIX this is the same as GNU ld -Ttext. When we see -T
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number, we assume the AIX option is intended. Otherwise, we
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assume the usual GNU ld -T option is intended. We can't just
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ignore the AIX option, because gcc passes it to the linker. */
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val = strtoul (optarg, &end, 0);
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if (*end != '\0')
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{
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optind = prevoptind;
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return 0;
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}
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lang_section_start (".text", exp_intop (val));
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break;
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case OPTION_IGNORE:
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break;
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case OPTION_AUTOIMP:
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link_info.static_link = false;
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break;
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case OPTION_ERNOTOK:
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force_make_executable = false;
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break;
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case OPTION_EROK:
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force_make_executable = true;
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break;
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case OPTION_EXPORT:
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gld${EMULATION_NAME}_read_file (optarg, false);
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break;
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case OPTION_IMPORT:
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{
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struct filelist *n;
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struct filelist **flpp;
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n = (struct filelist *) xmalloc (sizeof (struct filelist));
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n->next = NULL;
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n->name = optarg;
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flpp = &import_files;
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while (*flpp != NULL)
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flpp = &(*flpp)->next;
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*flpp = n;
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}
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break;
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case OPTION_LOADMAP:
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config.map_filename = optarg;
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break;
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case OPTION_MAXDATA:
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val = strtoul (optarg, &end, 0);
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if (*end != '\0')
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einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n",
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optarg);
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else
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maxdata = val;
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break;
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case OPTION_MAXSTACK:
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val = strtoul (optarg, &end, 0);
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if (*end != '\0')
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einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n",
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optarg);
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else
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maxstack = val;
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break;
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case OPTION_MODTYPE:
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if (*optarg == 'S')
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{
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link_info.shared = true;
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++optarg;
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}
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if (*optarg == '\0' || optarg[1] == '\0')
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einfo ("%P: warning: ignoring invalid module type %s\n", optarg);
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else
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modtype = (*optarg << 8) | optarg[1];
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break;
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case OPTION_NOAUTOIMP:
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link_info.static_link = true;
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break;
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case OPTION_NOSTRCMPCT:
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link_info.traditional_format = true;
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break;
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case OPTION_PD:
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/* This sets the page that the .data section is supposed to
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start on. The offset within the page should still be the
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offset within the file, so we need to build an appropriate
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expression. */
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val = strtoul (optarg, &end, 0);
|
|
|
|
if (*end != '\0')
|
|
|
|
einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
etree_type *t;
|
|
|
|
|
|
|
|
t = exp_binop ('+',
|
|
|
|
exp_intop (val),
|
|
|
|
exp_binop ('&',
|
|
|
|
exp_nameop (NAME, "."),
|
|
|
|
exp_intop (0xfff)));
|
|
|
|
t = exp_binop ('&',
|
|
|
|
exp_binop ('+', t, exp_intop (31)),
|
|
|
|
exp_intop (~ (bfd_vma) 31));
|
|
|
|
lang_section_start (".data", t);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case OPTION_PT:
|
|
|
|
/* This set the page that the .text section is supposed to start
|
|
|
|
on. The offset within the page should still be the offset
|
|
|
|
within the file. */
|
|
|
|
val = strtoul (optarg, &end, 0);
|
|
|
|
if (*end != '\0')
|
|
|
|
einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
etree_type *t;
|
|
|
|
|
|
|
|
t = exp_binop ('+',
|
|
|
|
exp_intop (val),
|
|
|
|
exp_nameop (SIZEOF_HEADERS, NULL));
|
|
|
|
t = exp_binop ('&',
|
|
|
|
exp_binop ('+', t, exp_intop (31)),
|
|
|
|
exp_intop (~ (bfd_vma) 31));
|
|
|
|
lang_section_start (".text", t);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case OPTION_STRCMPCT:
|
|
|
|
link_info.traditional_format = false;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case OPTION_UNIX:
|
|
|
|
unix_ld = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This is called when an input file can not be recognized as a BFD
|
|
|
|
object or an archive. If the file starts with #!, we must treat it
|
|
|
|
as an import file. This is for AIX compatibility. */
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
gld${EMULATION_NAME}_unrecognized_file (entry)
|
|
|
|
lang_input_statement_type *entry;
|
|
|
|
{
|
|
|
|
FILE *e;
|
|
|
|
boolean ret;
|
|
|
|
|
|
|
|
e = fopen (entry->filename, FOPEN_RT);
|
|
|
|
if (e == NULL)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
ret = false;
|
|
|
|
|
|
|
|
if (getc (e) == '#' && getc (e) == '!')
|
|
|
|
{
|
|
|
|
struct filelist *n;
|
|
|
|
struct filelist **flpp;
|
|
|
|
|
|
|
|
n = (struct filelist *) xmalloc (sizeof (struct filelist));
|
|
|
|
n->next = NULL;
|
|
|
|
n->name = entry->filename;
|
|
|
|
flpp = &import_files;
|
|
|
|
while (*flpp != NULL)
|
|
|
|
flpp = &(*flpp)->next;
|
|
|
|
*flpp = n;
|
|
|
|
|
|
|
|
ret = true;
|
|
|
|
entry->loaded = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
fclose (e);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This is called after the input files have been opened. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_after_open ()
|
|
|
|
{
|
|
|
|
boolean r;
|
|
|
|
struct set_info *p;
|
|
|
|
|
|
|
|
/* Call ldctor_build_sets, after pretending that this is a
|
|
|
|
relocateable link. We do this because AIX requires relocation
|
|
|
|
entries for all references to symbols, even in a final
|
|
|
|
executable. Of course, we only want to do this if we are
|
|
|
|
producing an XCOFF output file. */
|
|
|
|
r = link_info.relocateable;
|
|
|
|
if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL)
|
|
|
|
link_info.relocateable = true;
|
|
|
|
ldctor_build_sets ();
|
|
|
|
link_info.relocateable = r;
|
|
|
|
|
|
|
|
/* For each set, record the size, so that the XCOFF backend can
|
|
|
|
output the correct csect length. */
|
|
|
|
for (p = sets; p != (struct set_info *) NULL; p = p->next)
|
|
|
|
{
|
|
|
|
bfd_size_type size;
|
|
|
|
|
|
|
|
/* If the symbol is defined, we may have been invoked from
|
|
|
|
collect, and the sets may already have been built, so we do
|
|
|
|
not do anything. */
|
|
|
|
if (p->h->type == bfd_link_hash_defined
|
|
|
|
|| p->h->type == bfd_link_hash_defweak)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (p->reloc != BFD_RELOC_CTOR)
|
|
|
|
{
|
|
|
|
/* Handle this if we need to. */
|
|
|
|
abort ();
|
|
|
|
}
|
|
|
|
|
|
|
|
size = (p->count + 2) * 4;
|
|
|
|
if (! bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size))
|
|
|
|
einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This is called after the sections have been attached to output
|
|
|
|
sections, but before any sizes or addresses have been set. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_before_allocation ()
|
|
|
|
{
|
|
|
|
struct filelist *fl;
|
|
|
|
struct export_symbol_list *el;
|
|
|
|
char *libpath;
|
|
|
|
asection *special_sections[6];
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* Handle the import and export files, if any. */
|
|
|
|
for (fl = import_files; fl != NULL; fl = fl->next)
|
|
|
|
gld${EMULATION_NAME}_read_file (fl->name, true);
|
|
|
|
for (el = export_symbols; el != NULL; el = el->next)
|
|
|
|
{
|
|
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
|
|
|
|
h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false);
|
|
|
|
if (h == NULL)
|
|
|
|
einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
|
|
|
|
if (! bfd_xcoff_export_symbol (output_bfd, &link_info, h, el->syscall))
|
|
|
|
einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Track down all relocations called for by the linker script (these
|
|
|
|
are typically constructor/destructor entries created by
|
|
|
|
CONSTRUCTORS) and let the backend know it will need to create
|
|
|
|
.loader relocs for them. */
|
|
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
|
|
|
|
|
|
|
|
/* We need to build LIBPATH from the -L arguments. If any -rpath
|
|
|
|
arguments were used, though, we use -rpath instead, as a GNU
|
|
|
|
extension. */
|
|
|
|
if (command_line.rpath != NULL)
|
|
|
|
libpath = command_line.rpath;
|
|
|
|
else if (search_head == NULL)
|
|
|
|
libpath = (char *) "";
|
|
|
|
else
|
|
|
|
{
|
|
|
|
size_t len;
|
|
|
|
search_dirs_type *search;
|
|
|
|
|
|
|
|
len = strlen (search_head->name);
|
|
|
|
libpath = xmalloc (len + 1);
|
|
|
|
strcpy (libpath, search_head->name);
|
|
|
|
for (search = search_head->next; search != NULL; search = search->next)
|
|
|
|
{
|
|
|
|
size_t nlen;
|
|
|
|
|
|
|
|
nlen = strlen (search->name);
|
|
|
|
libpath = xrealloc (libpath, len + nlen + 2);
|
|
|
|
libpath[len] = ':';
|
|
|
|
strcpy (libpath + len + 1, search->name);
|
|
|
|
len += nlen + 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Let the XCOFF backend set up the .loader section. */
|
|
|
|
if (! bfd_xcoff_size_dynamic_sections (output_bfd, &link_info, libpath,
|
|
|
|
entry_symbol, file_align,
|
|
|
|
maxstack, maxdata,
|
|
|
|
gc && ! unix_ld ? true : false,
|
|
|
|
modtype,
|
|
|
|
textro ? true : false,
|
|
|
|
unix_ld,
|
|
|
|
special_sections))
|
|
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
|
|
|
|
|
|
|
/* Look through the special sections, and put them in the right
|
|
|
|
place in the link ordering. This is especially magic. */
|
|
|
|
for (i = 0; i < 6; i++)
|
|
|
|
{
|
|
|
|
asection *sec;
|
|
|
|
lang_output_section_statement_type *os;
|
|
|
|
lang_statement_union_type **pls;
|
|
|
|
lang_input_section_type *is;
|
|
|
|
const char *oname;
|
|
|
|
boolean start;
|
|
|
|
|
|
|
|
sec = special_sections[i];
|
|
|
|
if (sec == NULL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* Remove this section from the list of the output section.
|
|
|
|
This assumes we know what the script looks like. */
|
|
|
|
is = NULL;
|
|
|
|
os = lang_output_section_find (sec->output_section->name);
|
|
|
|
if (os == NULL)
|
|
|
|
einfo ("%P%F: can't find output section %s\n",
|
|
|
|
sec->output_section->name);
|
|
|
|
for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->next)
|
|
|
|
{
|
|
|
|
if ((*pls)->header.type == lang_input_section_enum
|
|
|
|
&& (*pls)->input_section.section == sec)
|
|
|
|
{
|
|
|
|
is = (lang_input_section_type *) *pls;
|
|
|
|
*pls = (*pls)->next;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if ((*pls)->header.type == lang_wild_statement_enum)
|
|
|
|
{
|
|
|
|
lang_statement_union_type **pwls;
|
|
|
|
|
|
|
|
for (pwls = &(*pls)->wild_statement.children.head;
|
|
|
|
*pwls != NULL;
|
|
|
|
pwls = &(*pwls)->next)
|
|
|
|
{
|
|
|
|
if ((*pwls)->header.type == lang_input_section_enum
|
|
|
|
&& (*pwls)->input_section.section == sec)
|
|
|
|
{
|
|
|
|
is = (lang_input_section_type *) *pwls;
|
|
|
|
*pwls = (*pwls)->next;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (is != NULL)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is == NULL)
|
|
|
|
einfo ("%P%F: can't find %s in output section\n",
|
|
|
|
bfd_get_section_name (sec->owner, sec));
|
|
|
|
|
|
|
|
/* Now figure out where the section should go. */
|
|
|
|
switch (i)
|
|
|
|
{
|
|
|
|
default: /* to avoid warnings */
|
|
|
|
case 0:
|
|
|
|
/* _text */
|
|
|
|
oname = ".text";
|
|
|
|
start = true;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
/* _etext */
|
|
|
|
oname = ".text";
|
|
|
|
start = false;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
/* _data */
|
|
|
|
oname = ".data";
|
|
|
|
start = true;
|
|
|
|
break;
|
|
|
|
case 3:
|
|
|
|
/* _edata */
|
|
|
|
oname = ".data";
|
|
|
|
start = false;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
case 5:
|
|
|
|
/* _end and end */
|
|
|
|
oname = ".bss";
|
|
|
|
start = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
os = lang_output_section_find (oname);
|
|
|
|
|
|
|
|
if (start)
|
|
|
|
{
|
|
|
|
is->header.next = os->children.head;
|
|
|
|
os->children.head = (lang_statement_union_type *) is;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
is->header.next = NULL;
|
|
|
|
lang_statement_append (&os->children,
|
|
|
|
(lang_statement_union_type *) is,
|
|
|
|
&is->header.next);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Read an import or export file. For an import file, this is called
|
|
|
|
by the before_allocation emulation routine. For an export file,
|
|
|
|
this is called by the parse_args emulation routine. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_read_file (filename, import)
|
|
|
|
const char *filename;
|
|
|
|
boolean import;
|
|
|
|
{
|
|
|
|
struct obstack *o;
|
|
|
|
FILE *f;
|
|
|
|
int lineno;
|
|
|
|
int c;
|
|
|
|
boolean keep;
|
|
|
|
const char *imppath;
|
|
|
|
const char *impfile;
|
|
|
|
const char *impmember;
|
|
|
|
|
|
|
|
o = (struct obstack *) xmalloc (sizeof (struct obstack));
|
|
|
|
obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free);
|
|
|
|
|
|
|
|
f = fopen (filename, FOPEN_RT);
|
|
|
|
if (f == NULL)
|
|
|
|
{
|
|
|
|
bfd_set_error (bfd_error_system_call);
|
|
|
|
einfo ("%F%s: %E\n", filename);
|
|
|
|
}
|
|
|
|
|
|
|
|
keep = false;
|
|
|
|
|
|
|
|
imppath = NULL;
|
|
|
|
impfile = NULL;
|
|
|
|
impmember = NULL;
|
|
|
|
|
|
|
|
lineno = 0;
|
|
|
|
while ((c = getc (f)) != EOF)
|
|
|
|
{
|
|
|
|
char *s;
|
|
|
|
char *symname;
|
|
|
|
boolean syscall;
|
|
|
|
bfd_vma address;
|
|
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
|
|
|
|
if (c != '\n')
|
|
|
|
{
|
|
|
|
obstack_1grow (o, c);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
obstack_1grow (o, '\0');
|
|
|
|
++lineno;
|
|
|
|
|
|
|
|
s = (char *) obstack_base (o);
|
|
|
|
while (isspace ((unsigned char) *s))
|
|
|
|
++s;
|
|
|
|
if (*s == '\0'
|
|
|
|
|| *s == '*'
|
|
|
|
|| (*s == '#' && s[1] == ' ')
|
|
|
|
|| (! import && *s == '#' && s[1] == '!'))
|
|
|
|
{
|
|
|
|
obstack_free (o, obstack_base (o));
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*s == '#' && s[1] == '!')
|
|
|
|
{
|
|
|
|
s += 2;
|
|
|
|
while (isspace ((unsigned char) *s))
|
|
|
|
++s;
|
|
|
|
if (*s == '\0')
|
|
|
|
{
|
|
|
|
imppath = NULL;
|
|
|
|
impfile = NULL;
|
|
|
|
impmember = NULL;
|
|
|
|
obstack_free (o, obstack_base (o));
|
|
|
|
}
|
|
|
|
else if (*s == '(')
|
|
|
|
einfo ("%F%s%d: #! ([member]) is not supported in import files\n",
|
|
|
|
filename, lineno);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
char cs;
|
|
|
|
char *file;
|
|
|
|
|
|
|
|
(void) obstack_finish (o);
|
|
|
|
keep = true;
|
|
|
|
imppath = s;
|
|
|
|
file = NULL;
|
|
|
|
while (! isspace ((unsigned char) *s) && *s != '(' && *s != '\0')
|
|
|
|
{
|
|
|
|
if (*s == '/')
|
|
|
|
file = s + 1;
|
|
|
|
++s;
|
|
|
|
}
|
|
|
|
if (file != NULL)
|
|
|
|
{
|
|
|
|
file[-1] = '\0';
|
|
|
|
impfile = file;
|
|
|
|
if (imppath == file - 1)
|
|
|
|
imppath = "/";
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
impfile = imppath;
|
|
|
|
imppath = "";
|
|
|
|
}
|
|
|
|
cs = *s;
|
|
|
|
*s = '\0';
|
|
|
|
while (isspace ((unsigned char) cs))
|
|
|
|
{
|
|
|
|
++s;
|
|
|
|
cs = *s;
|
|
|
|
}
|
|
|
|
if (cs != '(')
|
|
|
|
{
|
|
|
|
impmember = "";
|
|
|
|
if (cs != '\0')
|
|
|
|
einfo ("%s:%d: warning: syntax error in import file\n",
|
|
|
|
filename, lineno);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
++s;
|
|
|
|
impmember = s;
|
|
|
|
while (*s != ')' && *s != '\0')
|
|
|
|
++s;
|
|
|
|
if (*s == ')')
|
|
|
|
*s = '\0';
|
|
|
|
else
|
|
|
|
einfo ("%s:%d: warning: syntax error in import file\n",
|
|
|
|
filename, lineno);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This is a symbol to be imported or exported. */
|
|
|
|
symname = s;
|
|
|
|
syscall = false;
|
|
|
|
address = (bfd_vma) -1;
|
|
|
|
|
|
|
|
while (! isspace ((unsigned char) *s) && *s != '\0')
|
|
|
|
++s;
|
|
|
|
if (*s != '\0')
|
|
|
|
{
|
|
|
|
char *se;
|
|
|
|
|
|
|
|
*s++ = '\0';
|
|
|
|
|
|
|
|
while (isspace ((unsigned char) *s))
|
|
|
|
++s;
|
|
|
|
|
|
|
|
se = s;
|
|
|
|
while (! isspace ((unsigned char) *se) && *se != '\0')
|
|
|
|
++se;
|
|
|
|
if (*se != '\0')
|
|
|
|
{
|
|
|
|
*se++ = '\0';
|
|
|
|
while (isspace ((unsigned char) *se))
|
|
|
|
++se;
|
|
|
|
if (*se != '\0')
|
|
|
|
einfo ("%s%d: warning: syntax error in import/export file\n",
|
|
|
|
filename, lineno);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s == se)
|
|
|
|
{
|
|
|
|
/* There was no address after all. */
|
|
|
|
}
|
|
|
|
else if (strcasecmp (s, "svc") == 0
|
|
|
|
|| strcasecmp (s, "syscall") == 0)
|
|
|
|
syscall = true;
|
|
|
|
else
|
|
|
|
{
|
|
|
|
char *end;
|
|
|
|
|
|
|
|
address = strtoul (s, &end, 0);
|
|
|
|
if (*end != '\0')
|
|
|
|
einfo ("%s:%d: warning: syntax error in import/export file\n",
|
|
|
|
filename, lineno);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (! import)
|
|
|
|
{
|
|
|
|
struct export_symbol_list *n;
|
|
|
|
|
|
|
|
ldlang_add_undef (symname);
|
|
|
|
n = ((struct export_symbol_list *)
|
|
|
|
xmalloc (sizeof (struct export_symbol_list)));
|
|
|
|
n->next = export_symbols;
|
|
|
|
n->name = buystring (symname);
|
|
|
|
n->syscall = syscall;
|
|
|
|
export_symbols = n;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
h = bfd_link_hash_lookup (link_info.hash, symname, false, false,
|
|
|
|
true);
|
|
|
|
if (h == NULL || h->type == bfd_link_hash_new)
|
|
|
|
{
|
|
|
|
/* We can just ignore attempts to import an unreferenced
|
|
|
|
symbol. */
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (! bfd_xcoff_import_symbol (output_bfd, &link_info, h,
|
|
|
|
address, imppath, impfile,
|
|
|
|
impmember))
|
|
|
|
einfo ("%X%s:%d: failed to import symbol %s: %E\n",
|
|
|
|
filename, lineno, symname);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
obstack_free (o, obstack_base (o));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (obstack_object_size (o) > 0)
|
|
|
|
{
|
|
|
|
einfo ("%s:%d: warning: ignoring unterminated last line\n",
|
|
|
|
filename, lineno);
|
|
|
|
obstack_free (o, obstack_base (o));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (! keep)
|
|
|
|
{
|
|
|
|
obstack_free (o, NULL);
|
|
|
|
free (o);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This routine saves us from worrying about declaring free. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_free (p)
|
|
|
|
PTR p;
|
|
|
|
{
|
|
|
|
free (p);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This is called by the before_allocation routine via
|
|
|
|
lang_for_each_statement. It looks for relocations and assignments
|
|
|
|
to symbols. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_find_relocs (s)
|
|
|
|
lang_statement_union_type *s;
|
|
|
|
{
|
|
|
|
if (s->header.type == lang_reloc_statement_enum)
|
|
|
|
{
|
|
|
|
lang_reloc_statement_type *rs;
|
|
|
|
|
|
|
|
rs = &s->reloc_statement;
|
|
|
|
if (rs->name == NULL)
|
|
|
|
einfo ("%F%P: only relocations against symbols are permitted\n");
|
|
|
|
if (! bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name))
|
|
|
|
einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->header.type == lang_assignment_statement_enum)
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Look through an expression for an assignment statement. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp)
|
|
|
|
etree_type *exp;
|
|
|
|
{
|
|
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
|
|
|
|
switch (exp->type.node_class)
|
|
|
|
{
|
|
|
|
case etree_provide:
|
|
|
|
h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
|
|
|
|
false, false, false);
|
|
|
|
if (h == NULL)
|
|
|
|
break;
|
|
|
|
/* Fall through. */
|
|
|
|
case etree_assign:
|
|
|
|
if (strcmp (exp->assign.dst, ".") != 0)
|
|
|
|
{
|
|
|
|
if (! bfd_xcoff_record_link_assignment (output_bfd, &link_info,
|
|
|
|
exp->assign.dst))
|
|
|
|
einfo ("%P%F: failed to record assignment to %s: %E\n",
|
|
|
|
exp->assign.dst);
|
|
|
|
}
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case etree_binary:
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case etree_trinary:
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case etree_unary:
|
|
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *
|
|
|
|
gld${EMULATION_NAME}_get_script(isfile)
|
|
|
|
int *isfile;
|
|
|
|
EOF
|
|
|
|
|
|
|
|
if test -n "$COMPILE_IN"
|
|
|
|
then
|
|
|
|
# Scripts compiled in.
|
|
|
|
|
|
|
|
# sed commands to quote an ld script as a C string.
|
1999-08-07 00:46:03 +02:00
|
|
|
sc="-f stringify.sed"
|
1999-05-03 09:29:11 +02:00
|
|
|
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
{
|
|
|
|
*isfile = 0;
|
|
|
|
|
|
|
|
if (link_info.relocateable == true && config.build_constructors == true)
|
|
|
|
return
|
|
|
|
EOF
|
|
|
|
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
|
|
|
echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
|
|
|
|
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
|
|
|
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
|
|
|
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
|
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
|
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
|
|
|
echo ' ; else return' >> e${EMULATION_NAME}.c
|
|
|
|
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
|
|
|
echo '; }' >> e${EMULATION_NAME}.c
|
|
|
|
|
|
|
|
else
|
|
|
|
# Scripts read from the filesystem.
|
|
|
|
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
{
|
|
|
|
*isfile = 1;
|
|
|
|
|
|
|
|
if (link_info.relocateable == true && config.build_constructors == true)
|
|
|
|
return "ldscripts/${EMULATION_NAME}.xu";
|
|
|
|
else if (link_info.relocateable == true)
|
|
|
|
return "ldscripts/${EMULATION_NAME}.xr";
|
|
|
|
else if (!config.text_read_only)
|
|
|
|
return "ldscripts/${EMULATION_NAME}.xbn";
|
|
|
|
else if (!config.magic_demand_paged)
|
|
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
|
|
|
else
|
|
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
|
|
|
}
|
|
|
|
EOF
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
|
|
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
|
|
|
{
|
|
|
|
gld${EMULATION_NAME}_before_parse,
|
|
|
|
syslib_default,
|
|
|
|
hll_default,
|
|
|
|
after_parse_default,
|
|
|
|
gld${EMULATION_NAME}_after_open,
|
|
|
|
after_allocation_default,
|
|
|
|
set_output_arch_default,
|
|
|
|
ldemul_default_target,
|
|
|
|
gld${EMULATION_NAME}_before_allocation,
|
|
|
|
gld${EMULATION_NAME}_get_script,
|
|
|
|
"${EMULATION_NAME}",
|
|
|
|
"${OUTPUT_FORMAT}",
|
|
|
|
0, /* finish */
|
|
|
|
0, /* create_output_section_statements */
|
|
|
|
0, /* open_dynamic_archive */
|
|
|
|
0, /* place_orphan */
|
|
|
|
0, /* set_symbols */
|
|
|
|
gld${EMULATION_NAME}_parse_args,
|
2000-02-29 06:53:53 +01:00
|
|
|
gld${EMULATION_NAME}_unrecognized_file,
|
|
|
|
NULL /* find_potential_libraries */
|
1999-05-03 09:29:11 +02:00
|
|
|
};
|
|
|
|
EOF
|