382 lines
8.4 KiB
C
382 lines
8.4 KiB
C
/* 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
/*
|
|
ldfile.c
|
|
|
|
look after all the file stuff
|
|
|
|
*/
|
|
|
|
#include "bfd.h"
|
|
#include "sysdep.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 <ctype.h>
|
|
|
|
char *ldfile_input_filename;
|
|
const char *ldfile_output_machine_name = "";
|
|
unsigned long ldfile_output_machine;
|
|
enum bfd_architecture ldfile_output_architecture;
|
|
search_dirs_type *search_head;
|
|
|
|
/* start-sanitize-mpw */
|
|
#ifndef MPW
|
|
/* end-sanitize-mpw */
|
|
#ifdef VMS
|
|
char *slash = "";
|
|
#else
|
|
char *slash = "/";
|
|
#endif
|
|
/* start-sanitize-mpw */
|
|
#else /* MPW */
|
|
/* The MPW path char is a colon. */
|
|
char *slash = ":";
|
|
#endif /* MPW */
|
|
/* end-sanitize-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 bfd *cached_bfd_openr PARAMS ((const char *attempt,
|
|
lang_input_statement_type *entry));
|
|
static bfd *open_a PARAMS ((char *arch, lang_input_statement_type *entry,
|
|
char *lib, char *suffix));
|
|
static FILE *try_open PARAMS ((char *name, 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;
|
|
}
|
|
|
|
|
|
static bfd *
|
|
cached_bfd_openr(attempt,entry)
|
|
const char *attempt;
|
|
lang_input_statement_type *entry;
|
|
{
|
|
entry->the_bfd = bfd_openr(attempt, entry->target);
|
|
if (trace_file_tries == true ) {
|
|
info_msg ("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 ;
|
|
|
|
/* If this is not an archive, try to open it in the current
|
|
directory first. */
|
|
if (! entry->is_archive)
|
|
{
|
|
desc = cached_bfd_openr (entry->filename, entry);
|
|
if (desc != NULL)
|
|
return desc;
|
|
}
|
|
|
|
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->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;
|
|
{
|
|
ASSERT (entry->the_bfd == NULL);
|
|
|
|
if (! entry->search_dirs_flag)
|
|
entry->the_bfd = cached_bfd_openr (entry->filename, entry);
|
|
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 (config.dynamic_link)
|
|
{
|
|
/* FIXME: Perhaps we will sometimes want something other
|
|
than .so. */
|
|
if (open_a (arch->name, entry, "lib", ".so") != (bfd *) NULL)
|
|
return;
|
|
}
|
|
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
|
|
}
|
|
}
|
|
|
|
if (entry->the_bfd == NULL)
|
|
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)
|
|
char *name;
|
|
char *exten;
|
|
{
|
|
FILE *result;
|
|
char buff[1000];
|
|
|
|
result = fopen(name, "r");
|
|
if (trace_file_tries == true) {
|
|
if (result == (FILE *)NULL) {
|
|
info_msg ("cannot find ");
|
|
}
|
|
info_msg ("%s\n",name);
|
|
}
|
|
if (result != (FILE *)NULL) {
|
|
return result;
|
|
}
|
|
|
|
if (*exten) {
|
|
sprintf(buff, "%s%s", name, exten);
|
|
result = fopen(buff, "r");
|
|
if (trace_file_tries == true) {
|
|
if (result == (FILE *)NULL) {
|
|
info_msg ("cannot find ");
|
|
}
|
|
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)
|
|
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 = 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;
|
|
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((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
|
|
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: cannot represent machine `%s'\n", string);
|
|
}
|
|
}
|