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- /* Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
-
- This file is part of GLD, the Gnu Linker.
-
- GLD 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 1, or (at your option)
- any later version.
-
- GLD 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 GLD; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- /*
- ldfile.c
-
- look after all the file stuff
-
- */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "bfdlink.h"
- #include "ld.h"
- #include "ldmisc.h"
- #include "ldexp.h"
- #include "ldlang.h"
- #include "ldfile.h"
- #include "ldmain.h"
- #include "ldgram.h"
- #include "ldlex.h"
- #include "ldemul.h"
-
- #include <ctype.h>
-
- const char *ldfile_input_filename;
- boolean ldfile_assumed_script = false;
- const char *ldfile_output_machine_name = "";
- unsigned long ldfile_output_machine;
- enum bfd_architecture ldfile_output_architecture;
- search_dirs_type *search_head;
-
- #ifndef MPW
- #ifdef VMS
- char *slash = "";
- #else
- char *slash = "/";
- #endif
- #else /* MPW */
- /* The MPW path char is a colon. */
- char *slash = ":";
- #endif /* MPW */
-
- /* LOCAL */
-
- static search_dirs_type **search_tail_ptr = &search_head;
-
- typedef struct search_arch
- {
- char *name;
- struct search_arch *next;
- } search_arch_type;
-
- static search_arch_type *search_arch_head;
- static search_arch_type **search_arch_tail_ptr = &search_arch_head;
-
- static boolean ldfile_open_file_search
- PARAMS ((const char *arch, lang_input_statement_type *,
- const char *lib, const char *suffix));
- static FILE *try_open PARAMS ((const char *name, const char *exten));
-
- void
- ldfile_add_library_path (name, cmdline)
- const char *name;
- boolean cmdline;
- {
- search_dirs_type *new;
-
- new = (search_dirs_type *) xmalloc (sizeof (search_dirs_type));
- new->next = NULL;
- new->name = name;
- new->cmdline = cmdline;
- *search_tail_ptr = new;
- search_tail_ptr = &new->next;
- }
-
- /* Try to open a BFD for a lang_input_statement. */
-
- boolean
- ldfile_try_open_bfd (attempt, entry)
- const char *attempt;
- lang_input_statement_type *entry;
- {
- entry->the_bfd = bfd_openr (attempt, entry->target);
-
- if (trace_file_tries)
- info_msg ("attempt to open %s %s\n", attempt,
- entry->the_bfd == NULL ? "failed" : "succeeded");
-
- if (entry->the_bfd != NULL)
- return true;
- else
- {
- if (bfd_get_error () == bfd_error_invalid_target)
- einfo ("%F%P: invalid BFD target `%s'\n", entry->target);
- return false;
- }
- }
-
- /* Search for and open the file specified by ENTRY. If it is an
- archive, use ARCH, LIB and SUFFIX to modify the file name. */
-
- static boolean
- ldfile_open_file_search (arch, entry, lib, suffix)
- const char *arch;
- lang_input_statement_type *entry;
- const char *lib;
- const char *suffix;
- {
- search_dirs_type *search;
-
- /* If this is not an archive, try to open it in the current
- directory first. */
- if (! entry->is_archive)
- {
- if (ldfile_try_open_bfd (entry->filename, entry))
- return true;
- }
-
- for (search = search_head;
- search != (search_dirs_type *)NULL;
- search = search->next)
- {
- char *string;
-
- if (entry->dynamic && ! link_info.relocateable)
- {
- if (ldemul_open_dynamic_archive (arch, search, entry))
- return true;
- }
-
- string = (char *) xmalloc (strlen (search->name)
- + strlen (slash)
- + strlen (lib)
- + strlen (entry->filename)
- + strlen (arch)
- + strlen (suffix)
- + 1);
-
- if (entry->is_archive)
- sprintf (string, "%s%s%s%s%s%s", search->name, slash,
- lib, entry->filename, arch, suffix);
- else if (entry->filename[0] == '/' || entry->filename[0] == '.')
- strcpy (string, entry->filename);
- else
- sprintf (string, "%s%s%s", search->name, slash, entry->filename);
-
- if (ldfile_try_open_bfd (string, entry))
- {
- entry->filename = string;
- return true;
- }
-
- free (string);
- }
-
- return false;
- }
-
- /* Open the input file specified by ENTRY. */
-
- void
- ldfile_open_file (entry)
- lang_input_statement_type *entry;
- {
- if (entry->the_bfd != NULL)
- return;
-
- if (! entry->search_dirs_flag)
- {
- if (ldfile_try_open_bfd (entry->filename, entry))
- return;
- }
- else
- {
- search_arch_type *arch;
-
- /* Try to open <filename><suffix> or lib<filename><suffix>.a */
- for (arch = search_arch_head;
- arch != (search_arch_type *) NULL;
- arch = arch->next)
- {
- if (ldfile_open_file_search (arch->name, entry, "lib", ".a"))
- return;
- #ifdef VMS
- if (ldfile_open_file_search (arch->name, entry, ":lib", ".a"))
- return;
- #endif
- }
- }
-
- einfo("%F%P: cannot open %s: %E\n", entry->local_sym_name);
- }
-
- /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */
-
- static FILE *
- try_open (name, exten)
- const char *name;
- const char *exten;
- {
- FILE *result;
- char buff[1000];
-
- result = fopen (name, "r");
- if (trace_file_tries)
- {
- if (result == NULL)
- info_msg ("cannot find script file ");
- else
- info_msg ("opened script file ");
- info_msg ("%s\n",name);
- }
-
- if (result != NULL)
- return result;
-
- if (*exten)
- {
- sprintf (buff, "%s%s", name, exten);
- result = fopen (buff, "r");
- if (trace_file_tries)
- {
- if (result == NULL)
- info_msg ("cannot find script file ");
- else
- info_msg ("opened script file ");
- info_msg ("%s\n", buff);
- }
- }
-
- return result;
- }
-
- /* Try to open NAME; if that fails, look for it in any directories
- specified with -L, without and with EXTEND apppended. */
-
- FILE *
- ldfile_find_command_file (name, extend)
- const char *name;
- const char *extend;
- {
- search_dirs_type *search;
- FILE *result;
- char buffer[1000];
-
- /* First try raw name */
- result = try_open(name,"");
- if (result == (FILE *)NULL) {
- /* Try now prefixes */
- for (search = search_head;
- search != (search_dirs_type *)NULL;
- search = search->next) {
- sprintf(buffer,"%s/%s", search->name, name);
- result = try_open(buffer, extend);
- if (result)break;
- }
- }
- return result;
- }
-
- void
- ldfile_open_command_file (name)
- const char *name;
- {
- FILE *ldlex_input_stack;
- ldlex_input_stack = ldfile_find_command_file(name, "");
-
- if (ldlex_input_stack == (FILE *)NULL) {
- bfd_set_error (bfd_error_system_call);
- einfo("%P%F: cannot open linker script file %s: %E\n",name);
- }
- lex_push_file(ldlex_input_stack, name);
-
- ldfile_input_filename = name;
- lineno = 1;
- had_script = true;
- }
-
-
-
-
-
- #ifdef GNU960
- static
- char *
- gnu960_map_archname( name )
- char *name;
- {
- struct tabentry { char *cmd_switch; char *arch; };
- static struct tabentry arch_tab[] = {
- "", "",
- "KA", "ka",
- "KB", "kb",
- "KC", "mc", /* Synonym for MC */
- "MC", "mc",
- "CA", "ca",
- "SA", "ka", /* Functionally equivalent to KA */
- "SB", "kb", /* Functionally equivalent to KB */
- NULL, ""
- };
- struct tabentry *tp;
-
-
- for ( tp = arch_tab; tp->cmd_switch != NULL; tp++ ){
- if ( !strcmp(name,tp->cmd_switch) ){
- break;
- }
- }
-
- if ( tp->cmd_switch == NULL ){
- einfo("%P%F: unknown architecture: %s\n",name);
- }
- return tp->arch;
- }
-
-
-
- void
- ldfile_add_arch(name)
- char *name;
- {
- search_arch_type *new =
- (search_arch_type *)xmalloc((bfd_size_type)(sizeof(search_arch_type)));
-
-
- if (*name != '\0') {
- if (ldfile_output_machine_name[0] != '\0') {
- einfo("%P%F: target architecture respecified\n");
- return;
- }
- ldfile_output_machine_name = name;
- }
-
- new->next = (search_arch_type*)NULL;
- new->name = gnu960_map_archname( name );
- *search_arch_tail_ptr = new;
- search_arch_tail_ptr = &new->next;
-
- }
-
- #else /* not GNU960 */
-
-
- void
- ldfile_add_arch (in_name)
- CONST char * in_name;
- {
- char *name = buystring(in_name);
- search_arch_type *new =
- (search_arch_type *) xmalloc (sizeof (search_arch_type));
-
- ldfile_output_machine_name = in_name;
-
- new->name = name;
- new->next = (search_arch_type*)NULL;
- while (*name) {
- if (isupper(*name)) *name = tolower(*name);
- name++;
- }
- *search_arch_tail_ptr = new;
- search_arch_tail_ptr = &new->next;
-
- }
- #endif
-
- /* Set the output architecture */
- void
- ldfile_set_output_arch (string)
- CONST char *string;
- {
- const bfd_arch_info_type *arch = bfd_scan_arch(string);
-
- if (arch) {
- ldfile_output_architecture = arch->arch;
- ldfile_output_machine = arch->mach;
- ldfile_output_machine_name = arch->printable_name;
- }
- else {
- einfo("%P%F: cannot represent machine `%s'\n", string);
- }
- }
-