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+# This shell script emits a C file. -*- C -*-
+# It does some substitutions.
+cat >e${EMULATION_NAME}.c <<EOF
+/* This file is is generated by a shell script. DO NOT EDIT! */
+
+/* AIX emulation code for ${EMULATION_NAME}
+ Copyright (C) 1991, 93, 95, 96, 97, 1998 Free Software Foundation, Inc.
+ Written by Steve Chamberlain <sac@cygnus.com>
+ AIX support by Ian Lance Taylor <ian@cygnus.com>
+
+This file is part of GLD, the Gnu Linker.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#define TARGET_IS_${EMULATION_NAME}
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libiberty.h"
+#include "getopt.h"
+#include "obstack.h"
+#include "bfdlink.h"
+
+#include <ctype.h>
+
+#include "ld.h"
+#include "ldmain.h"
+#include "ldemul.h"
+#include "ldfile.h"
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldlang.h"
+#include "ldctor.h"
+#include "ldgram.h"
+
+static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
+static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
+static void gld${EMULATION_NAME}_after_open PARAMS ((void));
+static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
+static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean));
+static void gld${EMULATION_NAME}_free PARAMS ((PTR));
+static void gld${EMULATION_NAME}_find_relocs
+ PARAMS ((lang_statement_union_type *));
+static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
+static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
+
+/* The file alignment required for each section. */
+static unsigned long file_align;
+
+/* The maximum size the stack is permitted to grow. This is stored in
+ the a.out header. */
+static unsigned long maxstack;
+
+/* The maximum data size. This is stored in the a.out header. */
+static unsigned long maxdata;
+
+/* Whether to perform garbage collection. */
+static int gc = 1;
+
+/* The module type to use. */
+static unsigned short modtype = ('1' << 8) | 'L';
+
+/* Whether the .text section must be read-only (i.e., no relocs
+ permitted). */
+static int textro;
+
+/* Whether to implement Unix like linker semantics. */
+static int unix_ld;
+
+/* Structure used to hold import file list. */
+
+struct filelist
+{
+ struct filelist *next;
+ const char *name;
+};
+
+/* List of import files. */
+static struct filelist *import_files;
+
+/* List of export symbols read from the export files. */
+
+struct export_symbol_list
+{
+ struct export_symbol_list *next;
+ const char *name;
+ boolean syscall;
+};
+
+static struct export_symbol_list *export_symbols;
+
+/* This routine is called before anything else is done. */
+
+static void
+gld${EMULATION_NAME}_before_parse()
+{
+#ifndef TARGET_ /* I.e., if not generic. */
+ ldfile_output_architecture = bfd_arch_${ARCH};
+#endif /* not TARGET_ */
+ config.has_shared = true;
+}
+
+/* Handle AIX specific options. */
+
+static int
+gld${EMULATION_NAME}_parse_args (argc, argv)
+ int argc;
+ char **argv;
+{
+ int prevoptind = optind;
+ int prevopterr = opterr;
+ int indx;
+ int longind;
+ int optc;
+ long val;
+ char *end;
+
+#define OPTION_IGNORE (300)
+#define OPTION_AUTOIMP (OPTION_IGNORE + 1)
+#define OPTION_ERNOTOK (OPTION_AUTOIMP + 1)
+#define OPTION_EROK (OPTION_ERNOTOK + 1)
+#define OPTION_EXPORT (OPTION_EROK + 1)
+#define OPTION_IMPORT (OPTION_EXPORT + 1)
+#define OPTION_LOADMAP (OPTION_IMPORT + 1)
+#define OPTION_MAXDATA (OPTION_LOADMAP + 1)
+#define OPTION_MAXSTACK (OPTION_MAXDATA + 1)
+#define OPTION_MODTYPE (OPTION_MAXSTACK + 1)
+#define OPTION_NOAUTOIMP (OPTION_MODTYPE + 1)
+#define OPTION_NOSTRCMPCT (OPTION_NOAUTOIMP + 1)
+#define OPTION_PD (OPTION_NOSTRCMPCT + 1)
+#define OPTION_PT (OPTION_PD + 1)
+#define OPTION_STRCMPCT (OPTION_PT + 1)
+#define OPTION_UNIX (OPTION_STRCMPCT + 1)
+
+ static struct option longopts[] = {
+ {"basis", no_argument, NULL, OPTION_IGNORE},
+ {"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
+ {"bcomprld", no_argument, NULL, OPTION_IGNORE},
+ {"bcrld", no_argument, NULL, OPTION_IGNORE},
+ {"bcror31", no_argument, NULL, OPTION_IGNORE},
+ {"bD", required_argument, NULL, OPTION_MAXDATA},
+ {"bE", required_argument, NULL, OPTION_EXPORT},
+ {"bernotok", no_argument, NULL, OPTION_ERNOTOK},
+ {"berok", no_argument, NULL, OPTION_EROK},
+ {"berrmsg", no_argument, NULL, OPTION_IGNORE},
+ {"bexport", required_argument, NULL, OPTION_EXPORT},
+ {"bf", no_argument, NULL, OPTION_ERNOTOK},
+ {"bgc", no_argument, &gc, 1},
+ {"bh", required_argument, NULL, OPTION_IGNORE},
+ {"bhalt", required_argument, NULL, OPTION_IGNORE},
+ {"bI", required_argument, NULL, OPTION_IMPORT},
+ {"bimport", required_argument, NULL, OPTION_IMPORT},
+ {"bl", required_argument, NULL, OPTION_LOADMAP},
+ {"bloadmap", required_argument, NULL, OPTION_LOADMAP},
+ {"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
+ {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
+ {"bM", required_argument, NULL, OPTION_MODTYPE},
+ {"bmodtype", required_argument, NULL, OPTION_MODTYPE},
+ {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
+ {"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
+ {"bnoentry", no_argument, NULL, OPTION_IGNORE},
+ {"bnogc", no_argument, &gc, 0},
+ {"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
+ {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
+ {"bnotextro", no_argument, &textro, 0},
+ {"bnro", no_argument, &textro, 0},
+ {"bpD", required_argument, NULL, OPTION_PD},
+ {"bpT", required_argument, NULL, OPTION_PT},
+ {"bro", no_argument, &textro, 1},
+ {"bS", required_argument, NULL, OPTION_MAXSTACK},
+ {"bso", no_argument, NULL, OPTION_AUTOIMP},
+ {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
+ {"btextro", no_argument, &textro, 1},
+ {"static", no_argument, NULL, OPTION_NOAUTOIMP},
+ {"unix", no_argument, NULL, OPTION_UNIX},
+ {NULL, no_argument, NULL, 0}
+ };
+
+ /* Options supported by the AIX linker which we do not support: -f,
+ -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
+ -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
+ -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
+ -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
+ -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
+ -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
+ -bx, -bX, -bxref. */
+
+ /* If the current option starts with -b, change the first : to an =.
+ The AIX linker uses : to separate the option from the argument;
+ changing it to = lets us treat it as a getopt option. */
+ indx = optind;
+ if (indx == 0)
+ indx = 1;
+ if (indx < argc && strncmp (argv[indx], "-b", 2) == 0)
+ {
+ char *s;
+
+ for (s = argv[indx]; *s != '\0'; s++)
+ {
+ if (*s == ':')
+ {
+ *s = '=';
+ break;
+ }
+ }
+ }
+
+ /* We add s and u so to the short options list so that -s and -u on
+ the command line do not match -static and -unix. */
+
+ opterr = 0;
+ optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind);
+ opterr = prevopterr;
+
+ switch (optc)
+ {
+ case 's':
+ case 'u':
+ default:
+ optind = prevoptind;
+ return 0;
+
+ case 0:
+ /* Long option which just sets a flag. */
+ break;
+
+ case 'D':
+ val = strtol (optarg, &end, 0);
+ if (*end != '\0')
+ einfo ("%P: warning: ignoring invalid -D number %s\n", optarg);
+ else if (val != -1)
+ lang_section_start (".data", exp_intop (val));
+ break;
+
+ case 'H':
+ val = strtoul (optarg, &end, 0);
+ if (*end != '\0'
+ || (val & (val - 1)) != 0)
+ einfo ("%P: warning: ignoring invalid -H number %s\n", optarg);
+ else
+ file_align = val;
+ break;
+
+ case 'K':
+ case 'z':
+ /* FIXME: This should use the page size for the target system. */
+ file_align = 4096;
+ break;
+
+ case 'T':
+ /* On AIX this is the same as GNU ld -Ttext. When we see -T
+ number, we assume the AIX option is intended. Otherwise, we
+ assume the usual GNU ld -T option is intended. We can't just
+ ignore the AIX option, because gcc passes it to the linker. */
+ val = strtoul (optarg, &end, 0);
+ if (*end != '\0')
+ {
+ optind = prevoptind;
+ return 0;
+ }
+ lang_section_start (".text", exp_intop (val));
+ break;
+
+ case OPTION_IGNORE:
+ break;
+
+ case OPTION_AUTOIMP:
+ link_info.static_link = false;
+ break;
+
+ case OPTION_ERNOTOK:
+ force_make_executable = false;
+ break;
+
+ case OPTION_EROK:
+ force_make_executable = true;
+ break;
+
+ case OPTION_EXPORT:
+ gld${EMULATION_NAME}_read_file (optarg, false);
+ break;
+
+ case OPTION_IMPORT:
+ {
+ struct filelist *n;
+ struct filelist **flpp;
+
+ n = (struct filelist *) xmalloc (sizeof (struct filelist));
+ n->next = NULL;
+ n->name = optarg;
+ flpp = &import_files;
+ while (*flpp != NULL)
+ flpp = &(*flpp)->next;
+ *flpp = n;
+ }
+ break;
+
+ case OPTION_LOADMAP:
+ config.map_filename = optarg;
+ break;
+
+ case OPTION_MAXDATA:
+ val = strtoul (optarg, &end, 0);
+ if (*end != '\0')
+ einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n",
+ optarg);
+ else
+ maxdata = val;
+ break;
+
+ case OPTION_MAXSTACK:
+ val = strtoul (optarg, &end, 0);
+ if (*end != '\0')
+ einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n",
+ optarg);
+ else
+ maxstack = val;
+ break;
+
+ case OPTION_MODTYPE:
+ if (*optarg == 'S')
+ {
+ link_info.shared = true;
+ ++optarg;
+ }
+ if (*optarg == '\0' || optarg[1] == '\0')
+ einfo ("%P: warning: ignoring invalid module type %s\n", optarg);
+ else
+ modtype = (*optarg << 8) | optarg[1];
+ break;
+
+ case OPTION_NOAUTOIMP:
+ link_info.static_link = true;
+ break;
+
+ case OPTION_NOSTRCMPCT:
+ link_info.traditional_format = true;
+ break;
+
+ case OPTION_PD:
+ /* This sets the page that the .data section is supposed to
+ start on. The offset within the page should still be the
+ offset within the file, so we need to build an appropriate
+ expression. */
+ 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.
+sc="-f ${srcdir}/emultempl/stringify.sed"
+
+cat >>e${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${EMULATION_NAME}_parse_args,
+ gld${EMULATION_NAME}_unrecognized_file
+};
+EOF