--- /dev/null
+# 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 ${EMULATION_NAME}
+ Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+ Written by Steve Chamberlain <sac@cygnus.com>
+ AIX support by Ian Lance Taylor <ian@cygnus.com>
+
+This file is part of GLD, the Gnu Linker.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#define TARGET_IS_${EMULATION_NAME}
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libiberty.h"
+#include "getopt.h"
+#include "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"
+
+static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
+static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
+static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
+static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean));
+static void gld${EMULATION_NAME}_free PARAMS ((PTR));
+static char *gld${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;
+
+/* Structure used to hold import or export file list. */
+
+struct filelist
+{
+ struct filelist *next;
+ const char *name;
+};
+
+/* List of import files. */
+struct filelist *import_files;
+
+/* List of export files. */
+struct filelist *export_files;
+
+static void
+gld${EMULATION_NAME}_before_parse()
+{
+#ifndef TARGET_ /* I.e., if not generic. */
+ ldfile_output_architecture = bfd_arch_${ARCH};
+#endif /* not TARGET_ */
+}
+
+/* Handle AIX specific options. */
+
+static int
+gld${EMULATION_NAME}_parse_args (argc, argv)
+ int argc;
+ char **argv;
+{
+ int prevoptind = optind;
+ int prevopterr = opterr;
+ 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_MAXDATA (OPTION_IMPORT + 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_STRCMPCT (OPTION_NOSTRCMPCT + 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},
+ {"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},
+ {"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},
+ {"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},
+ {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 first 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. */
+ if (optind < argc && strncmp (argv[optind], "-b", 2) == 0)
+ {
+ char *s;
+
+ for (s = argv[optind]; *s != '\0'; s++)
+ {
+ if (*s == ':')
+ {
+ *s = '=';
+ break;
+ }
+ }
+ }
+
+ opterr = 0;
+ optc = getopt_long_only (argc, argv, "-D:H:KT:z", longopts, &longind);
+ opterr = prevopterr;
+
+ switch (optc)
+ {
+ default:
+ optind = prevoptind;
+ return 0;
+
+ 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:
+ case OPTION_IMPORT:
+ {
+ struct filelist *n;
+ struct filelist **flpp;
+
+ n = (struct filelist *) xmalloc (sizeof (struct filelist));
+ n->next = NULL;
+ n->name = optarg;
+ if (optc == OPTION_EXPORT)
+ flpp = &export_files;
+ else
+ flpp = &import_files;
+ while (*flpp != NULL)
+ flpp = &(*flpp)->next;
+ *flpp = n;
+ }
+ 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:
+ config.traditional_format = true;
+ break;
+
+ case OPTION_STRCMPCT:
+ config.traditional_format = false;
+ break;
+ }
+
+ return 1;
+}
+
+/* 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;
+ char *libpath;
+
+ /* Handle the import and export files, if any. */
+ for (fl = import_files; fl != NULL; fl = fl->next)
+ gld${EMULATION_NAME}_read_file (fl->name, true);
+ for (fl = export_files; fl != NULL; fl = fl->next)
+ gld${EMULATION_NAME}_read_file (fl->name, false);
+
+ /* 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 ? true : false,
+ modtype,
+ textro ? true : false))
+ einfo ("%P%F: failed to set dynamic section sizes: %E\n");
+}
+
+/* Read an import or export file. */
+
+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, "r");
+ 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",
+ filename, lineno);
+ else
+ {
+ char cs;
+ char *file;
+
+ (void) obstack_finish (o);
+ keep = true;
+ imppath = s;
+ impfile = 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 (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);
+ }
+ }
+
+ 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. */
+ if (! import)
+ einfo ("%X%s:%d: attempt to export undefined symbol %s\n",
+ filename, lineno, symname);
+ }
+ else if (import)
+ {
+ 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);
+ }
+ else
+ {
+ if (! bfd_xcoff_export_symbol (output_bfd, &link_info, h, syscall))
+ einfo ("%X%s:%d: failed to export 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${EMULATION_NAME}_free (p)
+ PTR p;
+{
+ free (p);
+}
+
+static char *
+gld${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${EMULATION_NAME}_before_parse,
+ syslib_default,
+ hll_default,
+ after_parse_default,
+ after_open_default,
+ after_allocation_default,
+ set_output_arch_default,
+ ldemul_default_target,
+ gld${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,
+};
+EOF
projects / binutils-gdb.git / commitdiff