1 /* vms-misc.c -- BFD back-end for VMS/VAX (openVMS/VAX) and
2 EVAX (openVMS/Alpha) files.
3 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 Miscellaneous functions.
8 Written by Klaus K"ampf (kkaempf@rmi.de)
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23 MA 02110-1301, USA. */
33 #include "safe-ctype.h"
41 #define RME$C_SETRFM 0x00000001
50 /* Debug functions. */
52 /* Debug function for all vms extensions evaluates environment
53 variable VMS_DEBUG for a numerical value on the first call all
54 error levels below this value are printed:
57 1 toplevel bfd calls (functions from the bfd vector)
58 2 functions called by bfd calls
62 Level is also indentation level. Indentation is performed
66 _bfd_vms_debug (int level
, char *format
, ...)
68 static int min_level
= -1;
69 static FILE *output
= NULL
;
72 int abslvl
= (level
> 0) ? level
: - level
;
76 if ((eptr
= getenv ("VMS_DEBUG")) != NULL
)
78 min_level
= atoi (eptr
);
86 if (abslvl
> min_level
)
90 fprintf (output
, " ");
91 va_start (args
, format
);
92 vfprintf (output
, format
, args
);
98 hex dump 'size' bytes starting at 'ptr'. */
101 _bfd_hexdump (int level
, unsigned char *ptr
, int size
, int offset
)
103 unsigned char *lptr
= ptr
;
109 if ((count
% 16) == 0)
110 vms_debug (level
, "%08lx:", start
);
111 vms_debug (-level
, " %02x", *ptr
++);
116 while ((count
% 16) != 0)
118 vms_debug (-level
, " ");
122 if ((count
% 16) == 0)
124 vms_debug (-level
, " ");
127 vms_debug (-level
, "%c", (*lptr
< 32) ? '.' : *lptr
);
130 vms_debug (-level
, "\n");
133 if ((count
% 16) != 0)
134 vms_debug (-level
, "\n");
139 /* Copy sized string (string with fixed size) to new allocated area
140 size is string size (size of record) */
143 _bfd_vms_save_sized_string (unsigned char *str
, int size
)
145 char *newstr
= bfd_malloc ((bfd_size_type
) size
+ 1);
149 memcpy (newstr
, (char *) str
, (size_t) size
);
155 /* Copy counted string (string with size at first byte) to new allocated area
156 ptr points to size byte on entry */
159 _bfd_vms_save_counted_string (unsigned char *ptr
)
163 return _bfd_vms_save_sized_string (ptr
, len
);
166 /* Object output routines. */
169 Write 2 bytes rectype and 2 bytes record length. */
172 _bfd_vms_output_begin (struct vms_rec_wr
*recwr
, int rectype
)
174 vms_debug2 ((6, "_bfd_vms_output_begin (type %d)\n", rectype
));
176 /* Record must have been closed. */
177 BFD_ASSERT (recwr
->size
== 0);
179 _bfd_vms_output_short (recwr
, (unsigned int) rectype
);
181 /* Placeholder for length. */
182 _bfd_vms_output_short (recwr
, 0);
185 /* Begin new sub-record.
186 Write 2 bytes rectype, and 2 bytes record length. */
189 _bfd_vms_output_begin_subrec (struct vms_rec_wr
*recwr
, int rectype
)
191 vms_debug2 ((6, "_bfd_vms_output_begin_subrec (type %d)\n", rectype
));
193 /* Subrecord must have been closed. */
194 BFD_ASSERT (recwr
->subrec_offset
== 0);
196 /* Save start of subrecord offset. */
197 recwr
->subrec_offset
= recwr
->size
;
199 /* Subrecord type. */
200 _bfd_vms_output_short (recwr
, (unsigned int) rectype
);
202 /* Placeholder for length. */
203 _bfd_vms_output_short (recwr
, 0);
206 /* Set record/subrecord alignment. */
209 _bfd_vms_output_alignment (struct vms_rec_wr
*recwr
, int alignto
)
211 vms_debug2 ((6, "_bfd_vms_output_alignment (%d)\n", alignto
));
212 recwr
->align
= alignto
;
215 /* Align the size of the current record (whose length is LENGTH).
216 Warning: this obviously changes the record (and the possible subrecord)
220 _bfd_vms_output_align (struct vms_rec_wr
*recwr
, unsigned int length
)
222 unsigned int real_size
= recwr
->size
;
223 unsigned int aligncount
;
225 /* Pad with 0 if alignment is required. */
226 aligncount
= (recwr
->align
- (length
% recwr
->align
)) % recwr
->align
;
227 vms_debug2 ((6, "align: adding %d bytes\n", aligncount
));
228 while (aligncount
-- > 0)
229 recwr
->buf
[real_size
++] = 0;
231 recwr
->size
= real_size
;
234 /* Ends current sub-record. Set length field. */
237 _bfd_vms_output_end_subrec (struct vms_rec_wr
*recwr
)
239 int real_size
= recwr
->size
;
242 /* Subrecord must be open. */
243 BFD_ASSERT (recwr
->subrec_offset
!= 0);
245 length
= real_size
- recwr
->subrec_offset
;
250 _bfd_vms_output_align (recwr
, length
);
252 /* Put length to buffer. */
253 bfd_putl16 ((bfd_vma
) (recwr
->size
- recwr
->subrec_offset
),
254 recwr
->buf
+ recwr
->subrec_offset
+ 2);
256 /* Close the subrecord. */
257 recwr
->subrec_offset
= 0;
260 /* Ends current record (and write it). */
263 _bfd_vms_output_end (bfd
*abfd
, struct vms_rec_wr
*recwr
)
265 vms_debug2 ((6, "_bfd_vms_output_end (size %u)\n", recwr
->size
));
267 /* Subrecord must have been closed. */
268 BFD_ASSERT (recwr
->subrec_offset
== 0);
270 if (recwr
->size
== 0)
273 _bfd_vms_output_align (recwr
, recwr
->size
);
275 /* Write the length word. */
276 bfd_putl16 ((bfd_vma
) recwr
->size
, recwr
->buf
+ 2);
278 /* File is open in undefined (UDF) format on VMS, but ultimately will be
279 converted to variable length (VAR) format. VAR format has a length
280 word first which must be explicitly output in UDF format. */
281 /* So, first the length word. */
282 bfd_bwrite (recwr
->buf
+ 2, 2, abfd
);
286 recwr
->buf
[recwr
->size
++] = 0;
288 /* Then the record. */
289 bfd_bwrite (recwr
->buf
, (size_t) recwr
->size
, abfd
);
294 /* Check remaining buffer size. Return what's left. */
297 _bfd_vms_output_check (struct vms_rec_wr
*recwr
, int size
)
299 vms_debug2 ((6, "_bfd_vms_output_check (%d)\n", size
));
301 return (MAX_OUTREC_SIZE
- (recwr
->size
+ size
+ MIN_OUTREC_LUFT
));
304 /* Output byte (8 bit) value. */
307 _bfd_vms_output_byte (struct vms_rec_wr
*recwr
, unsigned int value
)
309 vms_debug2 ((6, "_bfd_vms_output_byte (%02x)\n", value
));
311 *(recwr
->buf
+ recwr
->size
) = value
;
315 /* Output short (16 bit) value. */
318 _bfd_vms_output_short (struct vms_rec_wr
*recwr
, unsigned int value
)
320 vms_debug2 ((6, "_bfd_vms_output_short (%04x)\n", value
));
322 bfd_putl16 ((bfd_vma
) value
& 0xffff, recwr
->buf
+ recwr
->size
);
326 /* Output long (32 bit) value. */
329 _bfd_vms_output_long (struct vms_rec_wr
*recwr
, unsigned long value
)
331 vms_debug2 ((6, "_bfd_vms_output_long (%08lx)\n", value
));
333 bfd_putl32 ((bfd_vma
) value
, recwr
->buf
+ recwr
->size
);
337 /* Output quad (64 bit) value. */
340 _bfd_vms_output_quad (struct vms_rec_wr
*recwr
, bfd_vma value
)
342 vms_debug2 ((6, "_bfd_vms_output_quad (%08lx)\n", (unsigned long)value
));
344 bfd_putl64 (value
, recwr
->buf
+ recwr
->size
);
348 /* Output c-string as counted string. */
351 _bfd_vms_output_counted (struct vms_rec_wr
*recwr
, const char *value
)
355 vms_debug2 ((6, "_bfd_vms_output_counted (%s)\n", value
));
357 len
= strlen (value
);
360 (*_bfd_error_handler
) (_("_bfd_vms_output_counted called with zero bytes"));
365 (*_bfd_error_handler
) (_("_bfd_vms_output_counted called with too many bytes"));
368 _bfd_vms_output_byte (recwr
, (unsigned int) len
& 0xff);
369 _bfd_vms_output_dump (recwr
, (const unsigned char *)value
, len
);
372 /* Output character area. */
375 _bfd_vms_output_dump (struct vms_rec_wr
*recwr
, const unsigned char *data
, int len
)
377 vms_debug2 ((6, "_bfd_vms_output_dump (%d)\n", len
));
382 memcpy (recwr
->buf
+ recwr
->size
, data
, (size_t) len
);
386 /* Output count bytes of value. */
389 _bfd_vms_output_fill (struct vms_rec_wr
*recwr
, int value
, int count
)
391 vms_debug2 ((6, "_bfd_vms_output_fill (val %02x times %d)\n", value
, count
));
395 memset (recwr
->buf
+ recwr
->size
, value
, (size_t) count
);
396 recwr
->size
+= count
;
400 /* Convert the file to variable record length format. This is done
401 using undocumented system call sys$modify().
405 _bfd_vms_convert_to_var (char * vms_filename
)
407 struct FAB fab
= cc$rms_fab
;
409 fab
.fab$l_fna
= vms_filename
;
410 fab
.fab$b_fns
= strlen (vms_filename
);
411 fab
.fab$b_fac
= FAB$M_PUT
;
412 fab
.fab$l_fop
= FAB$M_ESC
;
413 fab
.fab$l_ctx
= RME$C_SETRFM
;
417 fab
.fab$b_rfm
= FAB$C_VAR
;
424 vms_convert_to_var_1 (char *filename
, int type
)
426 if (type
!= DECC$K_FILE
)
428 vms_convert_to_var (filename
);
432 /* Convert the file to variable record length format. This is done
433 using undocumented system call sys$modify().
434 Unix filename version. */
437 vms_convert_to_var_unix_filename (const char *unix_filename
)
439 if (decc$
to_vms (unix_filename
, &vms_convert_to_var_1
, 0, 1) != 1)
445 /* Manufacture a VMS like time on a unix based system.
446 stolen from obj-vms.c. */
449 get_vms_time_string (void)
451 static unsigned char tbuf
[18];
457 pnt
= ctime (&timeb
);
463 sprintf ((char *) tbuf
, "%2s-%3s-%s %s",
464 pnt
+ 8, pnt
+ 4, pnt
+ 20, pnt
+ 11);
471 Descriptor
.Size
= 17;
472 Descriptor
.Ptr
= tbuf
;
473 SYS$
ASCTIM (0, &Descriptor
, 0, 0);
476 vms_debug2 ((6, "vmstimestring:'%s'\n", tbuf
));
481 /* Create module name from filename (ie, extract the basename and convert it
482 in upper cases). Works on both VMS and UNIX pathes.
483 The result has to be free(). */
486 vms_get_module_name (const char *filename
, bfd_boolean upcase
)
491 /* Strip VMS path. */
492 fout
= strrchr (filename
, ']');
494 fout
= strchr (filename
, ':');
500 /* Strip UNIX path. */
501 fptr
= strrchr (fout
, '/');
505 fname
= strdup (fout
);
508 fptr
= strrchr (fname
, '.');
512 /* Convert to upper case and truncate at 31 characters.
513 (VMS object file format restricts module name length to 31). */
515 for (fptr
= fname
; *fptr
!= 0; fptr
++)
517 if (*fptr
== ';' || (fptr
- fname
) >= 31)
523 *fptr
= TOUPPER (*fptr
);
528 /* Compared to usual UNIX time_t, VMS time has less limits:
529 - 64 bit (63 bits in fact as the MSB must be 0)
531 - epoch is Nov 17, 1858.
532 Here has the constants and the routines used to convert VMS from/to UNIX time.
533 The conversion routines don't assume 64 bits arithmetic. */
535 /* UNIX time granularity for VMS, ie 1s / 100ns. */
536 #define VMS_TIME_FACTOR 10000000
538 /* Number of seconds since VMS epoch of the UNIX epoch. */
539 #define VMS_TIME_OFFSET 3506716800U
541 /* Convert a VMS time to a unix time. */
544 vms_time_to_time_t (unsigned int hi
, unsigned int lo
)
550 /* First convert to seconds. */
551 tmp
= hi
% VMS_TIME_FACTOR
;
552 hi
= hi
/ VMS_TIME_FACTOR
;
554 for (i
= 0; i
< 4; i
++)
556 tmp
= (tmp
<< 8) | (lo
>> 24);
559 rlo
= (rlo
<< 8) | (tmp
/ VMS_TIME_FACTOR
);
560 tmp
%= VMS_TIME_FACTOR
;
564 /* Return 0 in case of overflow. */
565 if (lo
> VMS_TIME_OFFSET
&& hi
> 1)
568 /* Return 0 in case of underflow. */
569 if (lo
< VMS_TIME_OFFSET
)
572 return lo
- VMS_TIME_OFFSET
;
575 /* Convert a time_t to a VMS time. */
578 vms_time_t_to_vms_time (time_t ut
, unsigned int *hi
, unsigned int *lo
)
580 unsigned short val
[4];
581 unsigned short tmp
[4];
586 val
[0] = ut
& 0xffff;
587 val
[1] = (ut
>> 16) & 0xffff;
588 val
[2] = sizeof (ut
) > 4 ? (ut
>> 32) & 0xffff : 0;
589 val
[3] = sizeof (ut
) > 4 ? (ut
>> 48) & 0xffff : 0;
592 tmp
[0] = VMS_TIME_OFFSET
& 0xffff;
593 tmp
[1] = VMS_TIME_OFFSET
>> 16;
597 for (i
= 0; i
< 4; i
++)
599 carry
+= tmp
[i
] + val
[i
];
600 val
[i
] = carry
& 0xffff;
604 /* Multiply by factor, well first by 10000 and then by 1000. */
606 for (i
= 0; i
< 4; i
++)
608 carry
+= val
[i
] * 10000;
609 val
[i
] = carry
& 0xffff;
613 for (i
= 0; i
< 4; i
++)
615 carry
+= val
[i
] * 1000;
616 val
[i
] = carry
& 0xffff;
620 /* Write the result. */
621 *lo
= val
[0] | (val
[1] << 16);
622 *hi
= val
[2] | (val
[3] << 16);
625 /* Convert a raw (stored in a buffer) VMS time to a unix time. */
628 vms_rawtime_to_time_t (unsigned char *buf
)
630 unsigned int hi
= bfd_getl32 (buf
+ 4);
631 unsigned int lo
= bfd_getl32 (buf
+ 0);
633 return vms_time_to_time_t (hi
, lo
);
637 vms_get_time (unsigned int *hi
, unsigned int *lo
)
640 struct _generic_64 t
;
643 *lo
= t
.gen64$q_quadword
;
644 *hi
= t
.gen64$q_quadword
>> 32;
649 vms_time_t_to_vms_time (t
, hi
, lo
);
653 /* Get the current time into a raw buffer BUF. */
656 vms_raw_get_time (unsigned char *buf
)
660 vms_get_time (&hi
, &lo
);
661 bfd_putl32 (lo
, buf
+ 0);
662 bfd_putl32 (hi
, buf
+ 4);
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