4b544b6468
* vms.h: Include time.h. Add prototypes for vms_get_module_name, vms_time_to_time_t and vms_rawtime_to_time_t. * vms.c (vms_alpha_vec): Add archives support. * vms-misc.c: Include safe-ctype.h (vms_get_module_name): New function. (vms_time_to_time_t, vms_rawtime_to_time_t): Ditto. * vms-hdr.c (_bfd_vms_write_hdr): Put module name creation to the vms_get_module_name function. Use this function. * targets.c: Declare vms_lib_txt_vec. Add it to _bfd_target_vector. * libbfd-in.h: Add prototype for _bfd_append_relative_path. Add prototypes for vms-lib.c * libbfd.h: Regenerate. * configure.in (TDEFINES): Add an entry for vms_lib_txt_vec. Add vms-lib.lo to vms_alpha_vec. * config.bfd (targ_cpu): Add targ_selvecs for alpha*-*-*vms*. * configure: Regenerate. * bfd.c: Add selective_search field. * bfd-in2.h: Regenerate. * archive.c (append_relative_path): Rename to _bfd_append_relative_path and make it public. (_bfd_get_elt_at_filepos): Adjust for above renaming. * Makefile.am (BFD32_BACKENDS): Add vms-lib.lo (BFD32_BACKENDS_CFILES): Add vms-lib.c * Makefile.in: Regenerate.
1138 lines
26 KiB
C
1138 lines
26 KiB
C
/* vms-misc.c -- BFD back-end for VMS/VAX (openVMS/VAX) and
|
||
EVAX (openVMS/Alpha) files.
|
||
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
|
||
2007, 2008, 2009 Free Software Foundation, Inc.
|
||
|
||
Miscellaneous functions.
|
||
|
||
Written by Klaus K"ampf (kkaempf@rmi.de)
|
||
|
||
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
|
||
MA 02110-1301, USA. */
|
||
|
||
#if __STDC__
|
||
#include <stdarg.h>
|
||
#endif
|
||
|
||
#include "sysdep.h"
|
||
#include "bfd.h"
|
||
#include "bfdlink.h"
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||
#include "libbfd.h"
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||
#include "safe-ctype.h"
|
||
|
||
#include "vms.h"
|
||
|
||
#define MIN(a,b) ((a) < (b) ? (a) : (b))
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||
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||
static int hash_string PARAMS ((const char *));
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||
static asymbol *new_symbol PARAMS ((bfd *, char *));
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||
static void maybe_adjust_record_pointer_for_object PARAMS ((bfd *));
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||
static int vms_get_remaining_object_record PARAMS ((bfd *, int ));
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||
static int vms_get_remaining_image_record PARAMS ((bfd *, int ));
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||
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||
#if VMS_DEBUG
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||
/* Debug functions. */
|
||
|
||
/* Debug function for all vms extensions evaluates environment
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||
variable VMS_DEBUG for a numerical value on the first call all
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||
error levels below this value are printed:
|
||
|
||
Levels:
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||
1 toplevel bfd calls (functions from the bfd vector)
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||
2 functions called by bfd calls
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||
...
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||
9 almost everything
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||
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||
Level is also indentation level. Indentation is performed
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if level > 0. */
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||
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||
void
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||
_bfd_vms_debug (int level, char *format, ...)
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||
{
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static int min_level = -1;
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||
static FILE *output = NULL;
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||
char *eptr;
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||
va_list args;
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int abslvl = (level > 0) ? level : - level;
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||
|
||
if (min_level == -1)
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||
{
|
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if ((eptr = getenv ("VMS_DEBUG")) != NULL)
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||
{
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||
min_level = atoi (eptr);
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output = stderr;
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||
}
|
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else
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min_level = 0;
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}
|
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if (output == NULL)
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return;
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if (abslvl > min_level)
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return;
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||
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while (--level>0)
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fprintf (output, " ");
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va_start (args, format);
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vfprintf (output, format, args);
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fflush (output);
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va_end (args);
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}
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||
|
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/* A debug function
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hex dump 'size' bytes starting at 'ptr'. */
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||
|
||
void
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||
_bfd_hexdump (int level,
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unsigned char *ptr,
|
||
int size,
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||
int offset)
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||
{
|
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unsigned char *lptr = ptr;
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int count = 0;
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long start = offset;
|
||
|
||
while (size-- > 0)
|
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{
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if ((count%16) == 0)
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vms_debug (level, "%08lx:", start);
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vms_debug (-level, " %02x", *ptr++);
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count++;
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start++;
|
||
if (size == 0)
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||
{
|
||
while ((count%16) != 0)
|
||
{
|
||
vms_debug (-level, " ");
|
||
count++;
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||
}
|
||
}
|
||
if ((count%16) == 0)
|
||
{
|
||
vms_debug (-level, " ");
|
||
while (lptr < ptr)
|
||
{
|
||
vms_debug (-level, "%c", (*lptr < 32)?'.':*lptr);
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||
lptr++;
|
||
}
|
||
vms_debug (-level, "\n");
|
||
}
|
||
}
|
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if ((count%16) != 0)
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vms_debug (-level, "\n");
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||
}
|
||
#endif
|
||
|
||
/* Hash functions
|
||
|
||
These are needed when reading an object file. */
|
||
|
||
/* Allocate new vms_hash_entry
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keep the symbol name and a pointer to the bfd symbol in the table. */
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||
|
||
struct bfd_hash_entry *
|
||
_bfd_vms_hash_newfunc (struct bfd_hash_entry *entry,
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struct bfd_hash_table *table,
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||
const char *string)
|
||
{
|
||
vms_symbol_entry *ret;
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||
|
||
#if VMS_DEBUG
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vms_debug (5, "_bfd_vms_hash_newfunc (%p, %p, %s)\n", entry, table, string);
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#endif
|
||
|
||
if (entry == NULL)
|
||
{
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||
ret = (vms_symbol_entry *)
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bfd_hash_allocate (table, sizeof (vms_symbol_entry));
|
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if (ret == NULL)
|
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{
|
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bfd_set_error (bfd_error_no_memory);
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return NULL;
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||
}
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entry = (struct bfd_hash_entry *) ret;
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||
}
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||
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||
/* Call the allocation method of the base class. */
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||
ret = (vms_symbol_entry *) bfd_hash_newfunc (entry, table, string);
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#if VMS_DEBUG
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||
vms_debug (6, "_bfd_vms_hash_newfunc ret %p\n", ret);
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||
#endif
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ret->symbol = NULL;
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||
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||
return (struct bfd_hash_entry *)ret;
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||
}
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/* Object file input functions. */
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||
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||
/* Return type and size from record header (buf) on Alpha. */
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void
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_bfd_vms_get_header_values (bfd * abfd ATTRIBUTE_UNUSED,
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unsigned char *buf,
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int *type,
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int *size)
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{
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||
if (type)
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*type = bfd_getl16 (buf);
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||
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||
if (size)
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*size = bfd_getl16 (buf+2);
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#if VMS_DEBUG
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vms_debug (10, "_bfd_vms_get_header_values type %x, size %x\n",
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type ? *type : 0, size ? *size : 0);
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#endif
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}
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||
/* Get next record from object file to vms_buf.
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Set PRIV(buf_size) and return it
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This is a little tricky since it should be portable.
|
||
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||
The openVMS object file has 'variable length' which means that
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read() returns data in chunks of (hopefully) correct and expected
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size. The linker (and other tools on VMS) depend on that. Unix
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doesn't know about 'formatted' files, so reading and writing such
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an object file in a Unix environment is not trivial.
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||
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||
With the tool 'file' (available on all VMS FTP sites), one
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||
can view and change the attributes of a file. Changing from
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'variable length' to 'fixed length, 512 bytes' reveals the
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record size at the first 2 bytes of every record. The same
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may happen during the transfer of object files from VMS to Unix,
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at least with UCX, the DEC implementation of TCP/IP.
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||
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The VMS format repeats the size at bytes 2 & 3 of every record.
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||
On the first call (file_format == FF_UNKNOWN) we check if
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the first and the third byte pair (!) of the record match.
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If they do it's an object file in an Unix environment or with
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wrong attributes (FF_FOREIGN), else we should be in a VMS
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environment where read() returns the record size (FF_NATIVE).
|
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Reading is always done in 2 steps:
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1. first just the record header is read and the size extracted,
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2. then the read buffer is adjusted and the remaining bytes are
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read in.
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||
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All file I/O is done on even file positions. */
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#define VMS_OBJECT_ADJUSTMENT 2
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static void
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||
maybe_adjust_record_pointer_for_object (bfd *abfd)
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||
{
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/* Set the file format once for all on the first invocation. */
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if (PRIV (file_format) == FF_UNKNOWN)
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{
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if (PRIV (vms_rec)[0] == PRIV (vms_rec)[4]
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&& PRIV (vms_rec)[1] == PRIV (vms_rec)[5])
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PRIV (file_format) = FF_FOREIGN;
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else
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PRIV (file_format) = FF_NATIVE;
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||
}
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/* The adjustment is needed only in an Unix environment. */
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||
if (PRIV (file_format) == FF_FOREIGN)
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PRIV (vms_rec) += VMS_OBJECT_ADJUSTMENT;
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}
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||
|
||
/* Get first record from file and return the file type. */
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||
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||
int
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_bfd_vms_get_first_record (bfd *abfd)
|
||
{
|
||
unsigned int test_len;
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|
||
#if VMS_DEBUG
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vms_debug (8, "_bfd_vms_get_first_record\n");
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#endif
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if (PRIV (is_vax))
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test_len = 0;
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else
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/* Minimum is 6 bytes for objects (2 bytes size, 2 bytes record id,
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2 bytes size repeated) and 12 bytes for images (4 bytes major id,
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4 bytes minor id, 4 bytes length). */
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test_len = 12;
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||
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/* Size the main buffer. */
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if (PRIV (buf_size) == 0)
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{
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/* On VAX there's no size information in the record, so
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start with OBJ_S_C_MAXRECSIZ. */
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bfd_size_type amt = (test_len ? test_len : OBJ_S_C_MAXRECSIZ);
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PRIV (vms_buf) = (unsigned char *) bfd_malloc (amt);
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PRIV (buf_size) = amt;
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}
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/* Initialize the record pointer. */
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PRIV (vms_rec) = PRIV (vms_buf);
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/* We only support modules on VAX. */
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if (PRIV (is_vax))
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{
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if (vms_get_remaining_object_record (abfd, test_len) <= 0)
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return FT_UNKNOWN;
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#if VMS_DEBUG
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vms_debug (2, "file type is VAX module\n");
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#endif
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return FT_MODULE;
|
||
}
|
||
|
||
if (bfd_bread (PRIV (vms_buf), test_len, abfd) != test_len)
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||
{
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||
bfd_set_error (bfd_error_file_truncated);
|
||
return FT_UNKNOWN;
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||
}
|
||
|
||
/* Is it an image? */
|
||
if ((bfd_getl32 (PRIV (vms_rec)) == EIHD_S_K_MAJORID)
|
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&& (bfd_getl32 (PRIV (vms_rec) + 4) == EIHD_S_K_MINORID))
|
||
{
|
||
if (vms_get_remaining_image_record (abfd, test_len) <= 0)
|
||
return FT_UNKNOWN;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (2, "file type is image\n");
|
||
#endif
|
||
|
||
return FT_IMAGE;
|
||
}
|
||
|
||
/* Assume it's a module and adjust record pointer if necessary. */
|
||
maybe_adjust_record_pointer_for_object (abfd);
|
||
|
||
/* But is it really a module? */
|
||
if (bfd_getl16 (PRIV (vms_rec)) <= EOBJ_S_C_MAXRECTYP
|
||
&& bfd_getl16 (PRIV (vms_rec) + 2) <= EOBJ_S_C_MAXRECSIZ)
|
||
{
|
||
if (vms_get_remaining_object_record (abfd, test_len) <= 0)
|
||
return FT_UNKNOWN;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (2, "file type is module\n");
|
||
#endif
|
||
|
||
return FT_MODULE;
|
||
}
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (2, "file type is unknown\n");
|
||
#endif
|
||
|
||
return FT_UNKNOWN;
|
||
}
|
||
|
||
/* Implement step #1 of the object record reading procedure.
|
||
Return the record type or -1 on failure. */
|
||
|
||
int
|
||
_bfd_vms_get_object_record (bfd *abfd)
|
||
{
|
||
unsigned int test_len;
|
||
int type;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (8, "_bfd_vms_get_obj_record\n");
|
||
#endif
|
||
|
||
if (PRIV (is_vax))
|
||
test_len = 0;
|
||
else
|
||
{
|
||
int off = 0;
|
||
|
||
/* See _bfd_vms_get_first_record. */
|
||
test_len = 6;
|
||
|
||
/* Skip odd alignment byte. */
|
||
if (bfd_tell (abfd) & 1)
|
||
{
|
||
if (bfd_bread (PRIV (vms_buf), 1, abfd) != 1)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return -1;
|
||
}
|
||
/* Alignment byte may be present or not. This is not easy to
|
||
detect but all object record types are not 0 (on Alpha VMS).
|
||
We also hope that pad byte is 0. */
|
||
if (PRIV (vms_buf)[0])
|
||
off = 1;
|
||
}
|
||
|
||
/* Read the record header */
|
||
if (bfd_bread (PRIV (vms_buf) + off, test_len - off, abfd)
|
||
!= test_len - off)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return -1;
|
||
}
|
||
|
||
/* Reset the record pointer. */
|
||
PRIV (vms_rec) = PRIV (vms_buf);
|
||
maybe_adjust_record_pointer_for_object (abfd);
|
||
}
|
||
|
||
if (vms_get_remaining_object_record (abfd, test_len) <= 0)
|
||
return -1;
|
||
|
||
if (PRIV (is_vax))
|
||
type = PRIV (vms_rec) [0];
|
||
else
|
||
type = bfd_getl16 (PRIV (vms_rec));
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (8, "_bfd_vms_get_obj_record: rec %p, size %d, type %d\n",
|
||
PRIV (vms_rec), PRIV (rec_size), type);
|
||
#endif
|
||
|
||
return type;
|
||
}
|
||
|
||
/* Implement step #2 of the object record reading procedure.
|
||
Return the size of the record or 0 on failure. */
|
||
|
||
static int
|
||
vms_get_remaining_object_record (bfd *abfd, int read_so_far)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (8, "vms_get_remaining_obj_record\n");
|
||
#endif
|
||
|
||
if (PRIV (is_vax))
|
||
{
|
||
if (read_so_far != 0)
|
||
abort ();
|
||
|
||
PRIV (rec_size) = bfd_bread (PRIV (vms_buf), PRIV (buf_size), abfd);
|
||
|
||
if (PRIV (rec_size) <= 0)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return 0;
|
||
}
|
||
|
||
/* Reset the record pointer. */
|
||
PRIV (vms_rec) = PRIV (vms_buf);
|
||
}
|
||
else
|
||
{
|
||
unsigned int to_read;
|
||
|
||
/* Extract record size. */
|
||
PRIV (rec_size) = bfd_getl16 (PRIV (vms_rec) + 2);
|
||
|
||
if (PRIV (rec_size) <= 0)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return 0;
|
||
}
|
||
|
||
/* That's what the linker manual says. */
|
||
if (PRIV (rec_size) > EOBJ_S_C_MAXRECSIZ)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return 0;
|
||
}
|
||
|
||
/* Take into account object adjustment. */
|
||
to_read = PRIV (rec_size);
|
||
if (PRIV (file_format) == FF_FOREIGN)
|
||
to_read += VMS_OBJECT_ADJUSTMENT;
|
||
|
||
/* Adjust the buffer. */
|
||
if (to_read > PRIV (buf_size))
|
||
{
|
||
PRIV (vms_buf)
|
||
= (unsigned char *) bfd_realloc (PRIV (vms_buf), to_read);
|
||
if (PRIV (vms_buf) == NULL)
|
||
return 0;
|
||
PRIV (buf_size) = to_read;
|
||
}
|
||
|
||
/* Read the remaining record. */
|
||
to_read -= read_so_far;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (8, "vms_get_remaining_obj_record: to_read %d\n", to_read);
|
||
#endif
|
||
|
||
if (bfd_bread (PRIV (vms_buf) + read_so_far, to_read, abfd) != to_read)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return 0;
|
||
}
|
||
|
||
/* Reset the record pointer. */
|
||
PRIV (vms_rec) = PRIV (vms_buf);
|
||
maybe_adjust_record_pointer_for_object (abfd);
|
||
}
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (8, "vms_get_remaining_obj_record: size %d\n", PRIV (rec_size));
|
||
#endif
|
||
|
||
return PRIV (rec_size);
|
||
}
|
||
|
||
/* Implement step #2 of the record reading procedure for images.
|
||
Return the size of the record or 0 on failure. */
|
||
|
||
static int
|
||
vms_get_remaining_image_record (bfd *abfd, int read_so_far)
|
||
{
|
||
unsigned int to_read;
|
||
int remaining;
|
||
|
||
/* Extract record size. */
|
||
PRIV (rec_size) = bfd_getl32 (PRIV (vms_rec) + EIHD_S_L_SIZE);
|
||
|
||
if (PRIV (rec_size) > PRIV (buf_size))
|
||
{
|
||
PRIV (vms_buf) = bfd_realloc (PRIV (vms_buf), PRIV (rec_size));
|
||
|
||
if (PRIV (vms_buf) == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_no_memory);
|
||
return 0;
|
||
}
|
||
|
||
PRIV (buf_size) = PRIV (rec_size);
|
||
}
|
||
|
||
/* Read the remaining record. */
|
||
remaining = PRIV (rec_size) - read_so_far;
|
||
to_read = MIN (VMS_BLOCK_SIZE - read_so_far, remaining);
|
||
|
||
while (remaining > 0)
|
||
{
|
||
if (bfd_bread (PRIV (vms_buf) + read_so_far, to_read, abfd) != to_read)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
return 0;
|
||
}
|
||
|
||
read_so_far += to_read;
|
||
remaining -= to_read;
|
||
|
||
/* Eat trailing 0xff's. */
|
||
if (remaining > 0)
|
||
while (PRIV (vms_buf) [read_so_far - 1] == 0xff)
|
||
read_so_far--;
|
||
|
||
to_read = MIN (VMS_BLOCK_SIZE, remaining);
|
||
}
|
||
|
||
/* Reset the record pointer. */
|
||
PRIV (vms_rec) = PRIV (vms_buf);
|
||
|
||
return PRIV (rec_size);
|
||
}
|
||
|
||
/* Copy sized string (string with fixed size) to new allocated area
|
||
size is string size (size of record) */
|
||
|
||
char *
|
||
_bfd_vms_save_sized_string (unsigned char *str, int size)
|
||
{
|
||
char *newstr = bfd_malloc ((bfd_size_type) size + 1);
|
||
|
||
if (newstr == NULL)
|
||
return NULL;
|
||
strncpy (newstr, (char *) str, (size_t) size);
|
||
newstr[size] = 0;
|
||
|
||
return newstr;
|
||
}
|
||
|
||
/* Copy counted string (string with size at first byte) to new allocated area
|
||
ptr points to size byte on entry */
|
||
|
||
char *
|
||
_bfd_vms_save_counted_string (unsigned char *ptr)
|
||
{
|
||
int len = *ptr++;
|
||
|
||
return _bfd_vms_save_sized_string (ptr, len);
|
||
}
|
||
|
||
/* Stack routines for vms ETIR commands. */
|
||
|
||
/* Push value and section index. */
|
||
|
||
void
|
||
_bfd_vms_push (bfd * abfd, uquad val, int psect)
|
||
{
|
||
static int last_psect;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (4, "<push %016lx (%d) at %d>\n", val, psect, PRIV (stackptr));
|
||
#endif
|
||
|
||
if (psect >= 0)
|
||
last_psect = psect;
|
||
|
||
PRIV (stack[PRIV (stackptr)]).value = val;
|
||
PRIV (stack[PRIV (stackptr)]).psect = last_psect;
|
||
PRIV (stackptr)++;
|
||
if (PRIV (stackptr) >= STACKSIZE)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
(*_bfd_error_handler) (_("Stack overflow (%d) in _bfd_vms_push"), PRIV (stackptr));
|
||
exit (1);
|
||
}
|
||
}
|
||
|
||
/* Pop value and section index. */
|
||
|
||
uquad
|
||
_bfd_vms_pop (bfd * abfd, int *psect)
|
||
{
|
||
uquad value;
|
||
|
||
if (PRIV (stackptr) == 0)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
(*_bfd_error_handler) (_("Stack underflow in _bfd_vms_pop"));
|
||
exit (1);
|
||
}
|
||
PRIV (stackptr)--;
|
||
value = PRIV (stack[PRIV (stackptr)]).value;
|
||
if ((psect != NULL) && (PRIV (stack[PRIV (stackptr)]).psect >= 0))
|
||
*psect = PRIV (stack[PRIV (stackptr)]).psect;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (4, "<pop %016lx(%d)>\n", value, PRIV (stack[PRIV (stackptr)]).psect);
|
||
#endif
|
||
|
||
return value;
|
||
}
|
||
|
||
/* Object output routines. */
|
||
|
||
/* Begin new record or record header
|
||
write 2 bytes rectype
|
||
write 2 bytes record length (filled in at flush)
|
||
write 2 bytes header type (ommitted if rechead == -1). */
|
||
|
||
void
|
||
_bfd_vms_output_begin (bfd * abfd, int rectype, int rechead)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_begin (type %d, head %d)\n", rectype,
|
||
rechead);
|
||
#endif
|
||
|
||
_bfd_vms_output_short (abfd, (unsigned int) rectype);
|
||
|
||
/* Save current output position to fill in length later. */
|
||
|
||
if (PRIV (push_level) > 0)
|
||
PRIV (length_pos) = PRIV (output_size);
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_begin: length_pos = %d\n",
|
||
PRIV (length_pos));
|
||
#endif
|
||
|
||
/* Placeholder for length. */
|
||
_bfd_vms_output_short (abfd, 0);
|
||
|
||
if (rechead != -1)
|
||
_bfd_vms_output_short (abfd, (unsigned int) rechead);
|
||
}
|
||
|
||
/* Set record/subrecord alignment. */
|
||
|
||
void
|
||
_bfd_vms_output_alignment (bfd * abfd, int alignto)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_alignment (%d)\n", alignto);
|
||
#endif
|
||
|
||
PRIV (output_alignment) = alignto;
|
||
}
|
||
|
||
/* Prepare for subrecord fields. */
|
||
|
||
void
|
||
_bfd_vms_output_push (bfd * abfd)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "vms_output_push (pushed_size = %d)\n", PRIV (output_size));
|
||
#endif
|
||
|
||
PRIV (push_level)++;
|
||
PRIV (pushed_size) = PRIV (output_size);
|
||
}
|
||
|
||
/* End of subrecord fields. */
|
||
|
||
void
|
||
_bfd_vms_output_pop (bfd * abfd)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "vms_output_pop (pushed_size = %d)\n", PRIV (pushed_size));
|
||
#endif
|
||
|
||
_bfd_vms_output_flush (abfd);
|
||
PRIV (length_pos) = 2;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "vms_output_pop: length_pos = %d\n", PRIV (length_pos));
|
||
#endif
|
||
|
||
PRIV (pushed_size) = 0;
|
||
PRIV (push_level)--;
|
||
}
|
||
|
||
/* Flush unwritten output, ends current record. */
|
||
|
||
void
|
||
_bfd_vms_output_flush (bfd * abfd)
|
||
{
|
||
int real_size = PRIV (output_size);
|
||
int aligncount;
|
||
int length;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_flush (real_size = %d, pushed_size %d at lenpos %d)\n",
|
||
real_size, PRIV (pushed_size), PRIV (length_pos));
|
||
#endif
|
||
|
||
if (PRIV (push_level) > 0)
|
||
length = real_size - PRIV (pushed_size);
|
||
else
|
||
length = real_size;
|
||
|
||
if (length == 0)
|
||
return;
|
||
aligncount = (PRIV (output_alignment)
|
||
- (length % PRIV (output_alignment))) % PRIV (output_alignment);
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "align: adding %d bytes\n", aligncount);
|
||
#endif
|
||
|
||
while (aligncount-- > 0)
|
||
{
|
||
PRIV (output_buf)[real_size++] = 0;
|
||
length++;
|
||
}
|
||
|
||
/* Put length to buffer. */
|
||
PRIV (output_size) = PRIV (length_pos);
|
||
_bfd_vms_output_short (abfd, (unsigned int) length);
|
||
|
||
if (PRIV (push_level) == 0)
|
||
{
|
||
/* File is open in undefined (UDF) format on VMS, but ultimately will be
|
||
converted to variable length (VAR) format. VAR format has a length
|
||
word first which must be explicitly output in UDF format. */
|
||
bfd_bwrite (PRIV (output_buf) + 2, 2, abfd);
|
||
bfd_bwrite (PRIV (output_buf), (size_t) real_size, abfd);
|
||
PRIV (output_size) = 0;
|
||
}
|
||
else
|
||
{
|
||
PRIV (output_size) = real_size;
|
||
PRIV (pushed_size) = PRIV (output_size);
|
||
}
|
||
}
|
||
|
||
/* End record output. */
|
||
|
||
void
|
||
_bfd_vms_output_end (bfd * abfd)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_end\n");
|
||
#endif
|
||
|
||
_bfd_vms_output_flush (abfd);
|
||
}
|
||
|
||
/* Check remaining buffer size
|
||
|
||
Return what's left. */
|
||
|
||
int
|
||
_bfd_vms_output_check (bfd * abfd, int size)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_check (%d)\n", size);
|
||
#endif
|
||
|
||
return (MAX_OUTREC_SIZE - (PRIV (output_size) + size + MIN_OUTREC_LUFT));
|
||
}
|
||
|
||
/* Output byte (8 bit) value. */
|
||
|
||
void
|
||
_bfd_vms_output_byte (bfd * abfd, unsigned int value)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_byte (%02x)\n", value);
|
||
#endif
|
||
|
||
bfd_put_8 (abfd, value & 0xff, PRIV (output_buf) + PRIV (output_size));
|
||
PRIV (output_size) += 1;
|
||
}
|
||
|
||
/* Output short (16 bit) value. */
|
||
|
||
void
|
||
_bfd_vms_output_short (bfd * abfd, unsigned int value)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_short (%04x)\n", value);
|
||
#endif
|
||
|
||
bfd_put_16 (abfd, (bfd_vma) value & 0xffff,
|
||
PRIV (output_buf) + PRIV (output_size));
|
||
PRIV (output_size) += 2;
|
||
}
|
||
|
||
/* Output long (32 bit) value. */
|
||
|
||
void
|
||
_bfd_vms_output_long (bfd * abfd, unsigned long value)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_long (%08lx)\n", value);
|
||
#endif
|
||
|
||
bfd_put_32 (abfd, (bfd_vma) value, PRIV (output_buf) + PRIV (output_size));
|
||
PRIV (output_size) += 4;
|
||
}
|
||
|
||
/* Output quad (64 bit) value. */
|
||
|
||
void
|
||
_bfd_vms_output_quad (bfd * abfd, uquad value)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_quad (%016lx)\n", value);
|
||
#endif
|
||
|
||
bfd_put_64(abfd, value, PRIV (output_buf) + PRIV (output_size));
|
||
PRIV (output_size) += 8;
|
||
}
|
||
|
||
/* Output c-string as counted string. */
|
||
|
||
void
|
||
_bfd_vms_output_counted (bfd * abfd, char *value)
|
||
{
|
||
int len;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_counted (%s)\n", value);
|
||
#endif
|
||
|
||
len = strlen (value);
|
||
if (len == 0)
|
||
{
|
||
(*_bfd_error_handler) (_("_bfd_vms_output_counted called with zero bytes"));
|
||
return;
|
||
}
|
||
if (len > 255)
|
||
{
|
||
(*_bfd_error_handler) (_("_bfd_vms_output_counted called with too many bytes"));
|
||
return;
|
||
}
|
||
_bfd_vms_output_byte (abfd, (unsigned int) len & 0xff);
|
||
_bfd_vms_output_dump (abfd, (unsigned char *) value, len);
|
||
}
|
||
|
||
/* Output character area. */
|
||
|
||
void
|
||
_bfd_vms_output_dump (bfd * abfd,
|
||
unsigned char *data,
|
||
int length)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_dump (%d)\n", length);
|
||
#endif
|
||
|
||
if (length == 0)
|
||
return;
|
||
|
||
memcpy (PRIV (output_buf) + PRIV (output_size), data, (size_t) length);
|
||
PRIV (output_size) += length;
|
||
}
|
||
|
||
/* Output count bytes of value. */
|
||
|
||
void
|
||
_bfd_vms_output_fill (bfd * abfd,
|
||
int value,
|
||
int count)
|
||
{
|
||
#if VMS_DEBUG
|
||
vms_debug (6, "_bfd_vms_output_fill (val %02x times %d)\n", value, count);
|
||
#endif
|
||
|
||
if (count == 0)
|
||
return;
|
||
memset (PRIV (output_buf) + PRIV (output_size), value, (size_t) count);
|
||
PRIV (output_size) += count;
|
||
}
|
||
|
||
/* This hash routine borrowed from GNU-EMACS, and strengthened slightly. ERY. */
|
||
|
||
static int
|
||
hash_string (const char *ptr)
|
||
{
|
||
const unsigned char *p = (unsigned char *) ptr;
|
||
const unsigned char *end = p + strlen (ptr);
|
||
unsigned char c;
|
||
int hash = 0;
|
||
|
||
while (p != end)
|
||
{
|
||
c = *p++;
|
||
hash = ((hash << 3) + (hash << 15) + (hash >> 28) + c);
|
||
}
|
||
return hash;
|
||
}
|
||
|
||
/* Generate a length-hashed VMS symbol name (limited to maxlen chars). */
|
||
|
||
char *
|
||
_bfd_vms_length_hash_symbol (bfd * abfd, const char *in, int maxlen)
|
||
{
|
||
unsigned long result;
|
||
int in_len;
|
||
char *new_name;
|
||
const char *old_name;
|
||
int i;
|
||
static char outbuf[EOBJ_S_C_SYMSIZ+1];
|
||
char *out = outbuf;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (4, "_bfd_vms_length_hash_symbol \"%s\"\n", in);
|
||
#endif
|
||
|
||
if (maxlen > EOBJ_S_C_SYMSIZ)
|
||
maxlen = EOBJ_S_C_SYMSIZ;
|
||
|
||
/* Save this for later. */
|
||
new_name = out;
|
||
|
||
/* We may need to truncate the symbol, save the hash for later. */
|
||
in_len = strlen (in);
|
||
|
||
result = (in_len > maxlen) ? hash_string (in) : 0;
|
||
|
||
old_name = in;
|
||
|
||
/* Do the length checking. */
|
||
if (in_len <= maxlen)
|
||
i = in_len;
|
||
else
|
||
{
|
||
if (PRIV (flag_hash_long_names))
|
||
i = maxlen-9;
|
||
else
|
||
i = maxlen;
|
||
}
|
||
|
||
strncpy (out, in, (size_t) i);
|
||
in += i;
|
||
out += i;
|
||
|
||
if ((in_len > maxlen)
|
||
&& PRIV (flag_hash_long_names))
|
||
sprintf (out, "_%08lx", result);
|
||
else
|
||
*out = 0;
|
||
|
||
#if VMS_DEBUG
|
||
vms_debug (4, "--> [%d]\"%s\"\n", strlen (outbuf), outbuf);
|
||
#endif
|
||
|
||
if (in_len > maxlen
|
||
&& PRIV (flag_hash_long_names)
|
||
&& PRIV (flag_show_after_trunc))
|
||
printf (_("Symbol %s replaced by %s\n"), old_name, new_name);
|
||
|
||
return outbuf;
|
||
}
|
||
|
||
/* Allocate and initialize a new symbol. */
|
||
|
||
static asymbol *
|
||
new_symbol (bfd * abfd, char *name)
|
||
{
|
||
asymbol *symbol;
|
||
|
||
#if VMS_DEBUG
|
||
_bfd_vms_debug (7, "new_symbol %s\n", name);
|
||
#endif
|
||
|
||
symbol = bfd_make_empty_symbol (abfd);
|
||
if (symbol == 0)
|
||
return symbol;
|
||
symbol->name = name;
|
||
symbol->section = (asection *)(unsigned long)-1;
|
||
|
||
return symbol;
|
||
}
|
||
|
||
/* Allocate and enter a new private symbol. */
|
||
|
||
vms_symbol_entry *
|
||
_bfd_vms_enter_symbol (bfd * abfd, char *name)
|
||
{
|
||
vms_symbol_entry *entry;
|
||
|
||
#if VMS_DEBUG
|
||
_bfd_vms_debug (6, "_bfd_vms_enter_symbol %s\n", name);
|
||
#endif
|
||
|
||
entry = (vms_symbol_entry *)
|
||
bfd_hash_lookup (PRIV (vms_symbol_table), name, FALSE, FALSE);
|
||
if (entry == 0)
|
||
{
|
||
#if VMS_DEBUG
|
||
_bfd_vms_debug (8, "creating hash entry for %s\n", name);
|
||
#endif
|
||
entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV (vms_symbol_table),
|
||
name, TRUE, FALSE);
|
||
if (entry != 0)
|
||
{
|
||
asymbol *symbol;
|
||
symbol = new_symbol (abfd, name);
|
||
if (symbol != 0)
|
||
{
|
||
entry->symbol = symbol;
|
||
PRIV (gsd_sym_count)++;
|
||
abfd->symcount++;
|
||
}
|
||
else
|
||
entry = 0;
|
||
}
|
||
else
|
||
(*_bfd_error_handler) (_("failed to enter %s"), name);
|
||
}
|
||
else
|
||
{
|
||
#if VMS_DEBUG
|
||
_bfd_vms_debug (8, "found hash entry for %s\n", name);
|
||
#endif
|
||
}
|
||
|
||
#if VMS_DEBUG
|
||
_bfd_vms_debug (7, "-> entry %p, entry->symbol %p\n", entry, entry->symbol);
|
||
#endif
|
||
return entry;
|
||
}
|
||
|
||
/* Create module name from filename (ie, extract the basename and convert it
|
||
in upper cases). Works on both VMS and UNIX pathes.
|
||
The result has to be free(). */
|
||
|
||
char *
|
||
vms_get_module_name (const char *filename, bfd_boolean upcase)
|
||
{
|
||
char *fname, *fptr;
|
||
const char *fout;
|
||
|
||
/* Strip VMS path. */
|
||
fout = strrchr (filename, ']');
|
||
if (fout == NULL)
|
||
fout = strchr (filename, ':');
|
||
if (fout != NULL)
|
||
fout++;
|
||
else
|
||
fout = filename;
|
||
|
||
/* Strip UNIX path. */
|
||
fptr = strrchr (fout, '/');
|
||
if (fptr != NULL)
|
||
fout = fptr + 1;
|
||
|
||
fname = strdup (fout);
|
||
|
||
/* Strip suffix. */
|
||
fptr = strrchr (fname, '.');
|
||
if (fptr != 0)
|
||
*fptr = 0;
|
||
|
||
/* Convert to upper case and truncate at 31 characters.
|
||
(VMS object file format restricts module name length to 31). */
|
||
fptr = fname;
|
||
for (fptr = fname; *fptr != 0; fptr++)
|
||
{
|
||
if (*fptr == ';' || (fptr - fname) >= 31)
|
||
{
|
||
*fptr = 0;
|
||
break;
|
||
}
|
||
if (upcase)
|
||
*fptr = TOUPPER (*fptr);
|
||
}
|
||
return fname;
|
||
}
|
||
|
||
/* Convert a raw VMS time to a unix time. */
|
||
|
||
time_t
|
||
vms_time_to_time_t (unsigned int hi, unsigned int lo)
|
||
{
|
||
const unsigned int off = 3506716800U;
|
||
const unsigned int factor = 10000000;
|
||
unsigned int tmp;
|
||
unsigned int rlo;
|
||
int i;
|
||
|
||
/* First convert to seconds. */
|
||
tmp = hi % factor;
|
||
hi = hi / factor;
|
||
rlo = 0;
|
||
for (i = 0; i < 4; i++)
|
||
{
|
||
tmp = (tmp << 8) | (lo >> 24);
|
||
lo <<= 8;
|
||
|
||
rlo = (rlo << 8) | (tmp / factor);
|
||
tmp %= factor;
|
||
}
|
||
lo = rlo;
|
||
|
||
/* Return 0 in case of overflow. */
|
||
if (lo > off && hi > 1)
|
||
return 0;
|
||
|
||
return lo - off;
|
||
}
|
||
|
||
/* Convert a raw (stored in a buffer) VMS time to a unix time. */
|
||
|
||
time_t
|
||
vms_rawtime_to_time_t (unsigned char *buf)
|
||
{
|
||
unsigned int hi = bfd_getl32 (buf + 4);
|
||
unsigned int lo = bfd_getl32 (buf + 0);
|
||
|
||
return vms_time_to_time_t (hi, lo);
|
||
}
|