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1046 lines
22 KiB
C
1046 lines
22 KiB
C
/* evax-misc.c -- Miscellaneous functions for ALPHA EVAX (openVMS/Alpha) files.
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Copyright 1996, 1997 Free Software Foundation, Inc.
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Written by Klaus K"ampf (kkaempf@progis.de)
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of proGIS Softwareentwicklung, Aachen, Germany
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#if __STDC__
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#include <stdarg.h>
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#endif
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#include <stdio.h>
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#include "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "evax.h"
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/*-----------------------------------------------------------------------------*/
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#if EVAX_DEBUG
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/* debug functions */
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/* debug function for all evax extensions
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evaluates environment variable EVAX_DEBUG for a
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numerical value on the first call
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all error levels below this value are printed
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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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level is also identation level. Indentation is performed
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if level > 0
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*/
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#if __STDC__
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void
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_bfd_evax_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("EVAX_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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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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return;
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}
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#else /* not __STDC__ */
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void
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_bfd_evax_debug (level, format, a1, a2, a3, a4, a5, a6)
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int level;
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char *format;
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long a1; long a2; long a3;
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long a4; long a5; long a6;
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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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if (min_level == -1)
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{
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if ((eptr = getenv("EVAX_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 (level > min_level)
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return;
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while(--level>0)
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fprintf(output, " ");
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fprintf(output, format, a1, a2, a3, a4, a5, a6);
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fflush(output);
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return;
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}
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#endif /* __STDC__ */
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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 (level, ptr, size, offset)
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int level;
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unsigned char *ptr;
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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;
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while (size-- > 0)
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{
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if ((count%16) == 0)
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evax_debug (level, "%08lx:", start);
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evax_debug (-level, " %02x", *ptr++);
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count++;
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start++;
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if (size == 0)
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{
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while ((count%16) != 0)
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{
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evax_debug (-level, " ");
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count++;
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}
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}
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if ((count%16) == 0)
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{
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evax_debug (-level, " ");
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while (lptr < ptr)
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{
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evax_debug (-level, "%c", (*lptr < 32)?'.':*lptr);
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lptr++;
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}
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evax_debug (-level, "\n");
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}
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}
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if ((count%16) != 0)
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evax_debug (-level, "\n");
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return;
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}
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#endif
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/* hash functions
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These are needed when reading an object file. */
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/* allocate new evax_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 *
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_bfd_evax_hash_newfunc (entry, table, string)
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struct bfd_hash_entry *entry;
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struct bfd_hash_table *table;
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const char *string;
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{
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evax_symbol_entry *ret = (evax_symbol_entry *)entry;
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#if EVAX_DEBUG
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evax_debug (5, "_bfd_evax_hash_newfunc(%p, %p, %s)\n", entry, table, string);
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#endif
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if (ret == (evax_symbol_entry *)NULL)
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ret = ((evax_symbol_entry *) bfd_hash_allocate (table, sizeof (evax_symbol_entry)));
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if (ret == (evax_symbol_entry *)NULL)
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{
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bfd_set_error (bfd_error_no_memory);
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return (struct bfd_hash_entry *)NULL;
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}
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ret = (evax_symbol_entry *) bfd_hash_newfunc ((struct bfd_hash_entry *)ret, table, string);
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ret->symbol = (asymbol *)NULL;
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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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/* Return type and length from record header (buf) */
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void
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_bfd_evax_get_header_values (abfd, buf, type, length)
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bfd *abfd;
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unsigned char *buf;
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int *type;
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int *length;
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{
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if (type != 0)
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*type = bfd_getl16 (buf);
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buf += 2;
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if (length != 0)
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*length = bfd_getl16 (buf);
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return;
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}
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/* Get next record from object file to evax_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/AXP 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 doesn't
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know about 'formatted' files, so reading and writing such an object
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file in a unix environment is not trivial.
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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 length at the first 2 bytes of every record. The same
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happens during the transfer of object files from vms to unix,
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at least with ucx, dec's implementation of tcp/ip.
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The EVAX format repeats the length 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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first just the record header is read and the length extracted
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by get_header_values
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then the read buffer is adjusted and the remaining bytes are
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read in.
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all file i/o is always done on even file positions */
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int
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_bfd_evax_get_record (abfd)
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bfd *abfd;
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{
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int test_len, test_start, remaining;
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unsigned char *evax_buf;
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#if EVAX_DEBUG
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evax_debug (8, "_bfd_evax_get_record\n");
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#endif
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/* minimum is 6 bytes
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(2 bytes length, 2 bytes record id, 2 bytes length repeated) */
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if (PRIV(buf_size) == 0)
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{
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PRIV(evax_buf) = (unsigned char *) malloc (6);
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#if EVAX_DEBUG
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evax_debug (9, "PRIV(evax_buf) %p\n", PRIV(evax_buf));
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#endif
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}
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evax_buf = PRIV(evax_buf);
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if (evax_buf == 0)
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{
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#if EVAX_DEBUG
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evax_debug (9, "can't alloc evax_buf\n");
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#endif
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bfd_set_error (bfd_error_no_memory);
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return -1;
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}
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switch (PRIV(file_format))
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{
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case FF_UNKNOWN:
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case FF_FOREIGN:
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test_len = 6; /* probe 6 bytes */
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test_start = 2; /* where the record starts */
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break;
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case FF_NATIVE:
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test_len = 4;
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test_start = 0;
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break;
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}
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/* skip odd alignment byte */
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#if 0
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if (PRIV(file_format) == FF_FOREIGN)
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{
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#endif
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if (bfd_tell (abfd) & 1)
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{
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#if EVAX_DEBUG
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evax_debug (10, "skip odd\n");
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#endif
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if (bfd_read (PRIV(evax_buf), 1, 1, abfd) != 1)
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{
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#if EVAX_DEBUG
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evax_debug (9, "skip odd failed\n");
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#endif
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bfd_set_error (bfd_error_file_truncated);
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return 0;
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}
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}
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#if 0
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}
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#endif
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/* read the record header */
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if (bfd_read (PRIV(evax_buf), 1, test_len, abfd) != test_len)
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{
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#if EVAX_DEBUG
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evax_debug (9, "can't bfd_read test %d bytes\n", test_len);
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#endif
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bfd_set_error (bfd_error_file_truncated);
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return 0;
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}
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/* check file format on first call */
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if (PRIV(file_format) == FF_UNKNOWN)
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{ /* record length repeats ? */
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if ( (evax_buf[0] == evax_buf[4])
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&& (evax_buf[1] == evax_buf[5]))
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{
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PRIV(file_format) = FF_FOREIGN; /* Y: foreign environment */
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test_start = 2;
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}
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else
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{
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PRIV(file_format) = FF_NATIVE; /* N: native environment */
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test_start = 0;
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}
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#if EVAX_DEBUG
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evax_debug (10, "File format is %s\n", (PRIV(file_format) == FF_FOREIGN)?"foreign":"native");
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#endif
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}
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/* extract evax record length */
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_bfd_evax_get_header_values (abfd, evax_buf+test_start, NULL,
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&PRIV(rec_length));
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if (PRIV(rec_length) <= 0)
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{
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bfd_set_error (bfd_error_file_truncated);
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return 0;
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}
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/* that's what the linker manual says */
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if (PRIV(rec_length) > EOBJ_S_C_MAXRECSIZ)
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{
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bfd_set_error (bfd_error_file_truncated);
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return 0;
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}
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/* adjust the buffer */
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if (PRIV(rec_length) > PRIV(buf_size))
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{
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PRIV(evax_buf) = (unsigned char *) realloc (evax_buf, PRIV(rec_length));
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#if EVAX_DEBUG
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evax_debug (3, "adjusted the buffer (%p) from %d to %d\n", PRIV(evax_buf), PRIV(buf_size), PRIV(rec_length));
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#endif
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evax_buf = PRIV(evax_buf);
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if (evax_buf == 0)
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{
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#if EVAX_DEBUG
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evax_debug (9, "can't realloc evax_buf to %d bytes\n", PRIV(rec_length));
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#endif
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bfd_set_error (bfd_error_no_memory);
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return -1;
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}
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PRIV(buf_size) = PRIV(rec_length);
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}
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/* read the remaining record */
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remaining = PRIV(rec_length) - test_len + test_start;
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if (bfd_read (evax_buf + test_len, 1, remaining, abfd) != remaining)
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{
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#if EVAX_DEBUG
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evax_debug (9, "can't bfd_read remaining %d bytes\n", remaining);
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#endif
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bfd_set_error (bfd_error_file_truncated);
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return 0;
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}
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PRIV(evax_rec) = evax_buf + test_start;
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return PRIV(rec_length);
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}
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/* get next EVAX record from file
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update evax_rec and rec_length to new (remaining) values */
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int
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_bfd_evax_next_record (abfd)
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bfd *abfd;
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{
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#if EVAX_DEBUG
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evax_debug (8, "_bfd_evax_next_record (len %d, size %d)\n",
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PRIV(rec_length), PRIV(rec_size));
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#endif
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if (PRIV(rec_length) > 0)
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{
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PRIV(evax_rec) += PRIV(rec_size);
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}
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else
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{
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if (_bfd_evax_get_record (abfd) <= 0)
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return -1;
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}
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_bfd_evax_get_header_values (abfd, PRIV(evax_rec), &PRIV(rec_type),
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&PRIV(rec_size));
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PRIV(rec_length) -= PRIV(rec_size);
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#if EVAX_DEBUG
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evax_debug (8, "_bfd_evax_next_record: rec %p, size %d, length %d, type %d\n",
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PRIV(evax_rec), PRIV(rec_size), PRIV(rec_length),
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PRIV(rec_type));
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#endif
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return PRIV(rec_type);
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}
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/* Copy sized string (string with fixed length) to new allocated area
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size is string length (size of record) */
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char *
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_bfd_evax_save_sized_string (str, size)
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char *str;
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int size;
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{
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char *newstr = bfd_malloc (size + 1);
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|
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if (newstr == NULL)
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return 0;
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strncpy (newstr, str, size);
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newstr[size] = 0;
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return newstr;
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}
|
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/* Copy counted string (string with length at first byte) to new allocated area
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ptr points to length byte on entry */
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char *
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_bfd_evax_save_counted_string (ptr)
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char *ptr;
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{
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int len = *ptr++;
|
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return _bfd_evax_save_sized_string (ptr, len);
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}
|
||
|
||
|
||
/* stack routines for EVAX ETIR commands */
|
||
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/* Push value and section index */
|
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void
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_bfd_evax_push (abfd, val, psect)
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bfd *abfd;
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uquad val;
|
||
int psect;
|
||
{
|
||
static int last_psect;
|
||
|
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#if EVAX_DEBUG
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evax_debug (4, "<push %016lx(%d) at %d>\n", val, psect, PRIV(stackptr));
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#endif
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if (psect >= 0)
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last_psect = psect;
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PRIV(stack[PRIV(stackptr)]).value = val;
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PRIV(stack[PRIV(stackptr)]).psect = last_psect;
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PRIV(stackptr)++;
|
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if (PRIV(stackptr) >= STACKSIZE)
|
||
{
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||
bfd_set_error (bfd_error_bad_value);
|
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exit(1);
|
||
}
|
||
return;
|
||
}
|
||
|
||
|
||
/* Pop value and section index */
|
||
|
||
uquad
|
||
_bfd_evax_pop (abfd, psect)
|
||
bfd *abfd;
|
||
int *psect;
|
||
{
|
||
uquad value;
|
||
|
||
if (PRIV(stackptr) == 0)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
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 EVAX_DEBUG
|
||
evax_debug (4, "<pop %016lx(%d)>\n", value, PRIV(stack[PRIV(stackptr)]).psect);
|
||
#endif
|
||
|
||
return value;
|
||
}
|
||
|
||
|
||
/* object file output functions */
|
||
|
||
/* GAS tends to write sections in little chunks (bfd_set_section_contents)
|
||
which we can't use directly. So we save the little chunks in linked
|
||
lists (one per section) and write them later. */
|
||
|
||
/* Add a new evax_section structure to evax_section_table
|
||
- forward chaining - */
|
||
|
||
static evax_section *
|
||
add_new_contents (abfd, section)
|
||
bfd *abfd;
|
||
sec_ptr section;
|
||
{
|
||
evax_section *sptr, *newptr;
|
||
|
||
sptr = PRIV(evax_section_table)[section->index];
|
||
if (sptr != NULL)
|
||
return sptr;
|
||
|
||
newptr = (evax_section *) bfd_malloc (sizeof (evax_section));
|
||
if (newptr == (evax_section *) NULL)
|
||
return NULL;
|
||
newptr->contents = (unsigned char *) bfd_alloc (abfd, (int)section->_raw_size);
|
||
if (newptr->contents == (unsigned char *)NULL)
|
||
return NULL;
|
||
newptr->offset = 0;
|
||
newptr->size = section->_raw_size;
|
||
newptr->next = 0;
|
||
PRIV(evax_section_table)[section->index] = newptr;
|
||
return newptr;
|
||
}
|
||
|
||
|
||
/* Save section data & offset to an evax_section structure
|
||
evax_section_table[] holds the evax_section chain */
|
||
|
||
boolean
|
||
_bfd_save_evax_section (abfd, section, data, offset, count)
|
||
bfd *abfd;
|
||
sec_ptr section;
|
||
PTR data;
|
||
file_ptr offset;
|
||
bfd_size_type count;
|
||
{
|
||
evax_section *sptr;
|
||
|
||
if (section->index >= EVAX_SECTION_COUNT)
|
||
{
|
||
bfd_set_error (bfd_error_nonrepresentable_section);
|
||
return false;
|
||
}
|
||
if (count == (bfd_size_type)0)
|
||
return true;
|
||
sptr = add_new_contents (abfd, section);
|
||
if (sptr == NULL)
|
||
return false;
|
||
memcpy (sptr->contents + offset, data, (size_t) count);
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
/* Get evax_section pointer to saved contents for section # index */
|
||
|
||
evax_section *
|
||
_bfd_get_evax_section (abfd, index)
|
||
bfd *abfd;
|
||
int index;
|
||
{
|
||
if (index >= EVAX_SECTION_COUNT)
|
||
{
|
||
bfd_set_error (bfd_error_nonrepresentable_section);
|
||
return NULL;
|
||
}
|
||
return PRIV(evax_section_table)[index];
|
||
}
|
||
|
||
|
||
/* 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_evax_output_begin (abfd, rectype, rechead)
|
||
bfd *abfd;
|
||
int rectype;
|
||
int rechead;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_begin(type %d, head %d)\n", rectype,
|
||
rechead);
|
||
#endif
|
||
|
||
_bfd_evax_output_short (abfd,rectype);
|
||
|
||
/* save current output position to fill in lenght later */
|
||
|
||
if (PRIV(push_level) > 0)
|
||
PRIV(length_pos) = PRIV(output_size);
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_begin: length_pos = %d\n",
|
||
PRIV(length_pos));
|
||
#endif
|
||
|
||
_bfd_evax_output_short (abfd,0); /* placeholder for length */
|
||
|
||
if (rechead != -1)
|
||
_bfd_evax_output_short (abfd,rechead);
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* Set record/subrecord alignment */
|
||
|
||
void
|
||
_bfd_evax_output_alignment (abfd, alignto)
|
||
bfd *abfd;
|
||
int alignto;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_alignment(%d)\n", alignto);
|
||
#endif
|
||
|
||
PRIV(output_alignment) = alignto;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Prepare for subrecord fields */
|
||
|
||
void
|
||
_bfd_evax_output_push (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "evax_output_push(pushed_size = %d)\n", PRIV(output_size));
|
||
#endif
|
||
|
||
PRIV(push_level)++;
|
||
PRIV(pushed_size) = PRIV(output_size);
|
||
return;
|
||
}
|
||
|
||
|
||
/* End of subrecord fields */
|
||
|
||
void
|
||
_bfd_evax_output_pop (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "evax_output_pop(pushed_size = %d)\n", PRIV(pushed_size));
|
||
#endif
|
||
|
||
_bfd_evax_output_flush (abfd);
|
||
PRIV(length_pos) = 2;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "evax_output_pop: length_pos = %d\n", PRIV(length_pos));
|
||
#endif
|
||
|
||
PRIV(pushed_size) = 0;
|
||
PRIV(push_level)--;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Flush unwritten output, ends current record */
|
||
|
||
void
|
||
_bfd_evax_output_flush (abfd)
|
||
bfd *abfd;
|
||
{
|
||
int real_size = PRIV(output_size);
|
||
int aligncount;
|
||
int length;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_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 EVAX_DEBUG
|
||
evax_debug (6, "align: adding %d bytes\n", aligncount);
|
||
#endif
|
||
|
||
while(aligncount-- > 0)
|
||
{
|
||
PRIV(output_buf)[real_size++] = 0;
|
||
#if 0
|
||
/* this is why I *love* vms: inconsistency :-}
|
||
alignment is added to the subrecord length
|
||
but not to the record length */
|
||
if (PRIV(push_level) > 0)
|
||
#endif
|
||
length++;
|
||
}
|
||
|
||
/* put length to buffer */
|
||
PRIV(output_size) = PRIV(length_pos);
|
||
_bfd_evax_output_short (abfd, (unsigned int)length);
|
||
|
||
if (PRIV(push_level) == 0)
|
||
{
|
||
#ifndef VMS
|
||
/* write length first, see FF_FOREIGN in the input routines */
|
||
fwrite (PRIV(output_buf)+2, 2, 1, (FILE *)abfd->iostream);
|
||
#endif
|
||
fwrite (PRIV(output_buf), real_size, 1, (FILE *)abfd->iostream);
|
||
|
||
PRIV(output_size) = 0;
|
||
}
|
||
else
|
||
{
|
||
PRIV(output_size) = real_size;
|
||
PRIV(pushed_size) = PRIV(output_size);
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* End record output */
|
||
|
||
void
|
||
_bfd_evax_output_end (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_end\n");
|
||
#endif
|
||
|
||
_bfd_evax_output_flush (abfd);
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* check remaining buffer size
|
||
|
||
return what's left. */
|
||
|
||
int
|
||
_bfd_evax_output_check (abfd, size)
|
||
bfd *abfd;
|
||
int size;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_check(%d)\n", size);
|
||
#endif
|
||
|
||
return (MAX_OUTREC_SIZE - (PRIV(output_size) + size + MIN_OUTREC_LUFT));
|
||
}
|
||
|
||
|
||
/* Output byte (8 bit) value */
|
||
|
||
void
|
||
_bfd_evax_output_byte (abfd, value)
|
||
bfd *abfd;
|
||
unsigned int value;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_byte(%02x)\n", value);
|
||
#endif
|
||
|
||
bfd_put_8 (abfd, value & 0xff, PRIV(output_buf) + PRIV(output_size));
|
||
PRIV(output_size) += 1;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Output short (16 bit) value */
|
||
|
||
void
|
||
_bfd_evax_output_short (abfd, value)
|
||
bfd *abfd;
|
||
unsigned int value;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_short (%04x)\n", value);
|
||
#endif
|
||
|
||
bfd_put_16 (abfd, value & 0xffff, PRIV(output_buf) + PRIV(output_size));
|
||
PRIV(output_size) += 2;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Output long (32 bit) value */
|
||
|
||
void
|
||
_bfd_evax_output_long (abfd, value)
|
||
bfd *abfd;
|
||
unsigned long value;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_long (%08lx)\n", value);
|
||
#endif
|
||
|
||
bfd_put_32 (abfd, value, PRIV(output_buf) + PRIV(output_size));
|
||
PRIV(output_size) += 4;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Output quad (64 bit) value */
|
||
|
||
void
|
||
_bfd_evax_output_quad (abfd, value)
|
||
bfd *abfd;
|
||
uquad value;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_quad(%016lx)\n", value);
|
||
#endif
|
||
|
||
bfd_put_64(abfd, value, PRIV(output_buf) + PRIV(output_size));
|
||
PRIV(output_size) += 8;
|
||
return;
|
||
}
|
||
|
||
|
||
/* Output c-string as counted string */
|
||
|
||
void
|
||
_bfd_evax_output_counted (abfd, value)
|
||
bfd *abfd;
|
||
char *value;
|
||
{
|
||
int len;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_counted(%s)\n", value);
|
||
#endif
|
||
|
||
len = strlen (value);
|
||
if (len == 0)
|
||
{
|
||
(*_bfd_error_handler) ("_bfd_evax_output_counted called with zero bytes");
|
||
return;
|
||
}
|
||
if (len > 255)
|
||
{
|
||
(*_bfd_error_handler) ("_bfd_evax_output_counted called with too many bytes");
|
||
return;
|
||
}
|
||
_bfd_evax_output_byte (abfd, len & 0xff);
|
||
_bfd_evax_output_dump (abfd, (unsigned char *)value, len);
|
||
}
|
||
|
||
|
||
/* Output character area */
|
||
|
||
void
|
||
_bfd_evax_output_dump (abfd, data, length)
|
||
bfd *abfd;
|
||
unsigned char *data;
|
||
int length;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_dump(%d)\n", length);
|
||
#endif
|
||
|
||
if (length == 0)
|
||
return;
|
||
|
||
memcpy (PRIV(output_buf) + PRIV(output_size), data, length);
|
||
PRIV(output_size) += length;
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* Output count bytes of value */
|
||
|
||
void
|
||
_bfd_evax_output_fill (abfd, value, count)
|
||
bfd *abfd;
|
||
int value;
|
||
int count;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (6, "_bfd_evax_output_fill(val %02x times %d)\n", value, count);
|
||
#endif
|
||
|
||
if (count == 0)
|
||
return;
|
||
memset (PRIV(output_buf) + PRIV(output_size), value, count);
|
||
PRIV(output_size) += count;
|
||
|
||
return;
|
||
}
|
||
|
||
/* this hash routine borrowed from GNU-EMACS, and strengthened slightly ERY*/
|
||
|
||
static int
|
||
hash_string (ptr)
|
||
const char *ptr;
|
||
{
|
||
register const unsigned char *p = (unsigned char *) ptr;
|
||
register const unsigned char *end = p + strlen (ptr);
|
||
register unsigned char c;
|
||
register 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_evax_length_hash_symbol (abfd, in, maxlen)
|
||
bfd *abfd;
|
||
const char *in;
|
||
int maxlen;
|
||
{
|
||
long int init;
|
||
long int result;
|
||
int in_len;
|
||
char *pnt = 0;
|
||
char *new_name;
|
||
const char *old_name;
|
||
int i;
|
||
static char outbuf[EOBJ_S_C_SYMSIZ+1];
|
||
char *out = outbuf;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug(4, "_bfd_evax_length_hash_symbol \"%s\"\n", in);
|
||
#endif
|
||
|
||
if (maxlen > EOBJ_S_C_SYMSIZ)
|
||
maxlen = EOBJ_S_C_SYMSIZ;
|
||
|
||
new_name = out; /* save this for later. */
|
||
|
||
/* 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, i);
|
||
in += i;
|
||
out += i;
|
||
|
||
if ((in_len > maxlen)
|
||
&& PRIV(flag_hash_long_names))
|
||
sprintf (out, "_%08x", result);
|
||
else
|
||
*out = 0;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_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;
|
||
}
|
||
|