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-
- /* Copyright (C) 1991 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /*
- ldfile.c
-
- look after all the file stuff
-
- */
-
- #include "bfd.h"
- #include "sysdep.h"
-
- #include "ldmisc.h"
- #include "ldlang.h"
- #include "ldfile.h"
- #include <ctype.h>
- /* EXPORT */
- char *ldfile_input_filename;
- CONST char * ldfile_output_machine_name ="";
- unsigned long ldfile_output_machine;
- enum bfd_architecture ldfile_output_architecture;
- boolean had_script;
-
- /* IMPORT */
-
- extern boolean option_v;
-
-
- #ifdef VMS
- char *slash = "";
- #else
- char *slash = "/";
- #endif
-
-
-
-
- /* LOACL */
- typedef struct search_dirs
- {
- char *name;
- struct search_dirs *next;
- } search_dirs_type;
-
- static search_dirs_type *search_head;
- 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;
-
-
-
- void
- ldfile_add_library_path(name)
- char *name;
- {
- search_dirs_type *new =
- (search_dirs_type *)ldmalloc((bfd_size_type)(sizeof(search_dirs_type)));
- new->name = name;
- new->next = (search_dirs_type*)NULL;
- *search_tail_ptr = new;
- search_tail_ptr = &new->next;
- }
-
-
- static bfd*
- cached_bfd_openr(attempt,entry)
- char *attempt;
- lang_input_statement_type *entry;
- {
- entry->the_bfd = bfd_openr(attempt, entry->target);
- if (option_v == true ) {
- info("attempt to open %s %s\n", attempt,
- (entry->the_bfd == (bfd *)NULL) ? "failed" : "succeeded" );
- }
- return entry->the_bfd;
- }
-
- static bfd *
- open_a(arch, entry, lib, suffix)
- char *arch;
- lang_input_statement_type *entry;
- char *lib;
- char *suffix;
- {
- bfd*desc;
- search_dirs_type *search ;
- for (search = search_head;
- search != (search_dirs_type *)NULL;
- search = search->next)
- {
- char buffer[1000];
- char *string;
- if (entry->is_archive == true) {
- sprintf(buffer,
- "%s%s%s%s%s%s",
- search->name,
- slash,
- lib,
- entry->filename, arch, suffix);
- }
- else {
- if (entry->filename[0] == '/' || entry->filename[0] == '.') {
- strcpy(buffer, entry->filename);
- } else {
- sprintf(buffer,"%s%s%s",search->name, slash, entry->filename);
- }
- }
- string = buystring(buffer);
- desc = cached_bfd_openr (string, entry);
- if (desc)
- {
- entry->filename = string;
- entry->search_dirs_flag = false;
- entry->the_bfd = desc;
- return desc;
- }
- free(string);
- }
- return (bfd *)NULL;
- }
-
- /* Open the input file specified by 'entry', and return a descriptor.
- The open file is remembered; if the same file is opened twice in a row,
- a new open is not actually done. */
-
- void
- ldfile_open_file (entry)
- lang_input_statement_type *entry;
- {
-
- if (entry->superfile)
- ldfile_open_file (entry->superfile);
-
- if (entry->search_dirs_flag)
- {
- 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 (open_a(arch->name,entry,"lib",".a") != (bfd *)NULL) {
- return;
- }
- #ifdef VMS
- if (open_a(arch->name,entry,":lib",".a") != (bfd *)NULL) {
- return;
- }
- #endif
-
- }
-
-
- }
- else {
- entry->the_bfd = cached_bfd_openr (entry->filename, entry);
-
- }
- if (!entry->the_bfd) einfo("%F%P: Can't open %s\n", entry->filename);
-
- }
-
-
-
-
-
-
- static FILE *
- try_open(name, exten)
- char *name;
- char *exten;
- {
- FILE *result;
- char buff[1000];
- result = fopen(name, "r");
- if (option_v == true) {
- if (result == (FILE *)NULL) {
- info("can't find ");
- }
- info("%s\n",name);
-
- return result;
- }
- sprintf(buff, "%s%s", name, exten);
- result = fopen(buff, "r");
-
- if (option_v == true) {
- if (result == (FILE *)NULL) {
- info("can't find ");
- }
- info("%s\n", buff);
- }
- return result;
- }
- static FILE *
- find_a_name(name, extend)
- char *name;
- 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)
- char *name;
- {
- FILE *ldlex_input_stack;
- ldlex_input_stack = find_a_name(name, ".ld");
-
- if (ldlex_input_stack == (FILE *)NULL) {
- einfo("%P%F cannot open load script file %s\n",name);
- }
- lex_push_file(ldlex_input_stack, name);
-
- ldfile_input_filename = name;
- 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 *)ldmalloc((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
- DEFUN(ldfile_add_arch,(in_name),
- CONST char * in_name)
- {
- char *name = buystring(in_name);
- search_arch_type *new =
- (search_arch_type *)ldmalloc((bfd_size_type)(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
- DEFUN(ldfile_set_output_arch,(string),
- CONST char *string)
- {
-
-
- 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: Can't represent machine `%s'\n", string);
- }
- }
-