| 1 | /* te-vms.c -- Utilities for VMS. |
| 2 | Copyright (C) 2009-2016 Free Software Foundation, Inc. |
| 3 | |
| 4 | Written by Douglas B Rupp <rupp@gnat.com> |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 | |
| 20 | #include "as.h" |
| 21 | #include "te-vms.h" |
| 22 | |
| 23 | /* The purspose of the two alternate versions below is to have one that |
| 24 | works for native VMS and one that works on an NFS mounted filesystem |
| 25 | (Unix Server/VMS client). The main issue being to generate the special |
| 26 | VMS file timestamps for the debug info. */ |
| 27 | |
| 28 | #ifdef VMS |
| 29 | #define __NEW_STARLET 1 |
| 30 | #include <vms/starlet.h> |
| 31 | #include <vms/rms.h> |
| 32 | #include <vms/atrdef.h> |
| 33 | #include <vms/fibdef.h> |
| 34 | #include <vms/stsdef.h> |
| 35 | #include <vms/iodef.h> |
| 36 | #include <vms/fatdef.h> |
| 37 | #include <errno.h> |
| 38 | #include <vms/descrip.h> |
| 39 | #include <string.h> |
| 40 | #include <unixlib.h> |
| 41 | |
| 42 | #define MAXPATH 256 |
| 43 | |
| 44 | /* Descrip.h doesn't have everything... */ |
| 45 | typedef struct fibdef * __fibdef_ptr32 __attribute__ (( mode (SI) )); |
| 46 | |
| 47 | struct dsc$descriptor_fib |
| 48 | { |
| 49 | unsigned int fib$l_len; |
| 50 | __fibdef_ptr32 fib$l_addr; |
| 51 | }; |
| 52 | |
| 53 | /* I/O Status Block. */ |
| 54 | struct IOSB |
| 55 | { |
| 56 | unsigned short status, count; |
| 57 | unsigned int devdep; |
| 58 | }; |
| 59 | |
| 60 | static char *tryfile; |
| 61 | |
| 62 | /* Variable length string. */ |
| 63 | struct vstring |
| 64 | { |
| 65 | short length; |
| 66 | char string[NAM$C_MAXRSS+1]; |
| 67 | }; |
| 68 | |
| 69 | static char filename_buff [MAXPATH]; |
| 70 | static char vms_filespec [MAXPATH]; |
| 71 | |
| 72 | /* Callback function for filespec style conversion. */ |
| 73 | |
| 74 | static int |
| 75 | translate_unix (char *name, int type ATTRIBUTE_UNUSED) |
| 76 | { |
| 77 | strncpy (filename_buff, name, MAXPATH); |
| 78 | filename_buff [MAXPATH - 1] = (char) 0; |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | /* Wrapper for DECC function that converts a Unix filespec |
| 83 | to VMS style filespec. */ |
| 84 | |
| 85 | static char * |
| 86 | to_vms_file_spec (char *filespec) |
| 87 | { |
| 88 | strncpy (vms_filespec, "", MAXPATH); |
| 89 | decc$to_vms (filespec, translate_unix, 1, 1); |
| 90 | strncpy (vms_filespec, filename_buff, MAXPATH); |
| 91 | |
| 92 | vms_filespec [MAXPATH - 1] = (char) 0; |
| 93 | |
| 94 | return vms_filespec; |
| 95 | } |
| 96 | |
| 97 | #else /* not VMS */ |
| 98 | |
| 99 | #define _BSD_SOURCE 1 |
| 100 | #include <sys/stat.h> |
| 101 | #include <time.h> |
| 102 | |
| 103 | #define VMS_EPOCH_OFFSET 35067168000000000LL |
| 104 | #define VMS_GRANULARITY_FACTOR 10000000 |
| 105 | |
| 106 | #endif /* VMS */ |
| 107 | |
| 108 | /* Return VMS file date, size, format, version given a name. */ |
| 109 | |
| 110 | static int |
| 111 | vms_file_stats_name (const char *dirname, |
| 112 | const char *filename, |
| 113 | long long *cdt, |
| 114 | long *siz, |
| 115 | char *rfo, |
| 116 | int *ver) |
| 117 | { |
| 118 | char * fullname; |
| 119 | |
| 120 | #ifdef VMS |
| 121 | struct FAB fab; |
| 122 | struct NAM nam; |
| 123 | |
| 124 | unsigned long long create; |
| 125 | FAT recattr; |
| 126 | char ascnamebuff [256]; |
| 127 | |
| 128 | ATRDEF atrlst[] |
| 129 | = { |
| 130 | { ATR$S_CREDATE, ATR$C_CREDATE, &create }, |
| 131 | { ATR$S_RECATTR, ATR$C_RECATTR, &recattr }, |
| 132 | { ATR$S_ASCNAME, ATR$C_ASCNAME, &ascnamebuff }, |
| 133 | { 0, 0, 0} |
| 134 | }; |
| 135 | |
| 136 | FIBDEF fib; |
| 137 | struct dsc$descriptor_fib fibdsc = {sizeof (fib), (void *) &fib}; |
| 138 | |
| 139 | struct IOSB iosb; |
| 140 | |
| 141 | long status; |
| 142 | unsigned short chan; |
| 143 | |
| 144 | struct vstring file; |
| 145 | struct dsc$descriptor_s filedsc |
| 146 | = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) file.string}; |
| 147 | struct vstring device; |
| 148 | struct dsc$descriptor_s devicedsc |
| 149 | = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) device.string}; |
| 150 | struct vstring result; |
| 151 | struct dsc$descriptor_s resultdsc |
| 152 | = {NAM$C_MAXRSS, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, (void *) result.string}; |
| 153 | |
| 154 | if (strcmp (filename, "<internal>") == 0 |
| 155 | || strcmp (filename, "<built-in>") == 0) |
| 156 | { |
| 157 | if (cdt) |
| 158 | *cdt = 0; |
| 159 | |
| 160 | if (siz) |
| 161 | *siz = 0; |
| 162 | |
| 163 | if (rfo) |
| 164 | *rfo = 0; |
| 165 | |
| 166 | if (ver) |
| 167 | *ver = 0; |
| 168 | |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | fullname = concat (dirname, filename, NULL); |
| 173 | tryfile = to_vms_file_spec (fullname); |
| 174 | |
| 175 | /* Allocate and initialize a FAB and NAM structures. */ |
| 176 | fab = cc$rms_fab; |
| 177 | nam = cc$rms_nam; |
| 178 | |
| 179 | nam.nam$l_esa = file.string; |
| 180 | nam.nam$b_ess = NAM$C_MAXRSS; |
| 181 | nam.nam$l_rsa = result.string; |
| 182 | nam.nam$b_rss = NAM$C_MAXRSS; |
| 183 | fab.fab$l_fna = tryfile; |
| 184 | fab.fab$b_fns = strlen (tryfile); |
| 185 | fab.fab$l_nam = &nam; |
| 186 | |
| 187 | /* Validate filespec syntax and device existence. */ |
| 188 | status = SYS$PARSE (&fab, 0, 0); |
| 189 | if ((status & 1) != 1) |
| 190 | { |
| 191 | free (fullname); |
| 192 | return 1; |
| 193 | } |
| 194 | |
| 195 | file.string[nam.nam$b_esl] = 0; |
| 196 | |
| 197 | /* Find matching filespec. */ |
| 198 | status = SYS$SEARCH (&fab, 0, 0); |
| 199 | if ((status & 1) != 1) |
| 200 | { |
| 201 | free (fullname); |
| 202 | return 1; |
| 203 | } |
| 204 | |
| 205 | file.string[nam.nam$b_esl] = 0; |
| 206 | result.string[result.length=nam.nam$b_rsl] = 0; |
| 207 | |
| 208 | /* Get the device name and assign an IO channel. */ |
| 209 | strncpy (device.string, nam.nam$l_dev, nam.nam$b_dev); |
| 210 | devicedsc.dsc$w_length = nam.nam$b_dev; |
| 211 | chan = 0; |
| 212 | status = SYS$ASSIGN (&devicedsc, &chan, 0, 0, 0); |
| 213 | if ((status & 1) != 1) |
| 214 | { |
| 215 | free (fullname); |
| 216 | return 1; |
| 217 | } |
| 218 | |
| 219 | /* Initialize the FIB and fill in the directory id field. */ |
| 220 | memset (&fib, 0, sizeof (fib)); |
| 221 | fib.fib$w_did[0] = nam.nam$w_did[0]; |
| 222 | fib.fib$w_did[1] = nam.nam$w_did[1]; |
| 223 | fib.fib$w_did[2] = nam.nam$w_did[2]; |
| 224 | fib.fib$l_acctl = 0; |
| 225 | fib.fib$l_wcc = 0; |
| 226 | strcpy (file.string, (strrchr (result.string, ']') + 1)); |
| 227 | filedsc.dsc$w_length = strlen (file.string); |
| 228 | result.string[result.length = 0] = 0; |
| 229 | |
| 230 | /* Open and close the file to fill in the attributes. */ |
| 231 | status |
| 232 | = SYS$QIOW (0, chan, IO$_ACCESS|IO$M_ACCESS, &iosb, 0, 0, |
| 233 | &fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0); |
| 234 | if ((status & 1) != 1) |
| 235 | { |
| 236 | free (fullname); |
| 237 | return 1; |
| 238 | } |
| 239 | |
| 240 | if ((iosb.status & 1) != 1) |
| 241 | { |
| 242 | free (fullname); |
| 243 | return 1; |
| 244 | } |
| 245 | |
| 246 | result.string[result.length] = 0; |
| 247 | status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, &fibdsc, 0, 0, 0, |
| 248 | &atrlst, 0); |
| 249 | if ((status & 1) != 1) |
| 250 | { |
| 251 | free (fullname); |
| 252 | return 1; |
| 253 | } |
| 254 | |
| 255 | if ((iosb.status & 1) != 1) |
| 256 | { |
| 257 | free (fullname); |
| 258 | return 1; |
| 259 | } |
| 260 | |
| 261 | /* Deassign the channel and exit. */ |
| 262 | status = SYS$DASSGN (chan); |
| 263 | if ((status & 1) != 1) |
| 264 | { |
| 265 | free (fullname); |
| 266 | return 1; |
| 267 | } |
| 268 | |
| 269 | if (cdt) *cdt = create; |
| 270 | if (siz) *siz = (512 * 65536 * recattr.fat$w_efblkh) + |
| 271 | (512 * (recattr.fat$w_efblkl - 1)) + |
| 272 | recattr.fat$w_ffbyte; |
| 273 | if (rfo) *rfo = recattr.fat$v_rtype; |
| 274 | if (ver) *ver = strtol (strrchr (ascnamebuff, ';') + 1, 0, 10); |
| 275 | #else /* not VMS */ |
| 276 | |
| 277 | struct stat buff; |
| 278 | struct tm *ts; |
| 279 | long long gmtoff, secs, nsecs; |
| 280 | |
| 281 | fullname = concat (dirname, filename, NULL); |
| 282 | |
| 283 | if ((stat (fullname, &buff)) != 0) |
| 284 | { |
| 285 | free (fullname); |
| 286 | return 1; |
| 287 | } |
| 288 | |
| 289 | if (cdt) |
| 290 | { |
| 291 | ts = localtime (& buff.st_mtime); |
| 292 | |
| 293 | #ifdef HAVE_TM_GMTOFF |
| 294 | gmtoff = ts->tm_gmtoff; |
| 295 | #else |
| 296 | { |
| 297 | extern long timezone; |
| 298 | |
| 299 | if (ts->tm_isdst == 1) |
| 300 | gmtoff = - (timezone - 3600); |
| 301 | else |
| 302 | gmtoff = - timezone; |
| 303 | } |
| 304 | #endif |
| 305 | |
| 306 | #ifdef HAVE_ST_MTIM_TV_SEC |
| 307 | secs = buff.st_mtim.tv_sec; |
| 308 | #else |
| 309 | secs = buff.st_mtime; |
| 310 | #endif |
| 311 | |
| 312 | #ifdef HAVE_ST_MTIM_TV_NSEC |
| 313 | nsecs = buff.st_mtim.tv_nsec; |
| 314 | #else |
| 315 | nsecs = 0; |
| 316 | #endif |
| 317 | |
| 318 | /* VMS timestamps are stored in local time to 100 nsec accuracy, but by |
| 319 | experiment I found timestamps truncated to (at least) microseconds |
| 320 | on an NFS mounted filesystem, hence the adjustment below. DBR. */ |
| 321 | *cdt = ((secs + gmtoff) * VMS_GRANULARITY_FACTOR) |
| 322 | + (nsecs / 1000 * 10) + VMS_EPOCH_OFFSET; |
| 323 | } |
| 324 | |
| 325 | if (siz) |
| 326 | *siz = buff.st_size; |
| 327 | |
| 328 | if (rfo) |
| 329 | *rfo = 2; /* Stream LF format. */ |
| 330 | |
| 331 | /* Returning a file version of 0 is never correct for debug info, version 1 |
| 332 | will be correct if file editing is done only on the Unix side. If editing |
| 333 | is done on the VMS side, then its TBD. */ |
| 334 | if (ver) |
| 335 | *ver = 1; |
| 336 | #endif /* VMS */ |
| 337 | |
| 338 | free (fullname); |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | bfd_uint64_t |
| 343 | vms_dwarf2_file_time_name (const char *filename, const char *dirname) |
| 344 | { |
| 345 | long long cdt; |
| 346 | |
| 347 | if (vms_file_stats_name (dirname, filename, &cdt, 0, 0, 0) == 0) |
| 348 | return cdt; |
| 349 | else |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | long |
| 354 | vms_dwarf2_file_size_name (const char *filename, const char *dirname) |
| 355 | { |
| 356 | long siz; |
| 357 | |
| 358 | if (vms_file_stats_name (dirname, filename, 0, &siz, 0, 0) == 0) |
| 359 | return siz; |
| 360 | else |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | /* VMS debugger needs the filename with version appended. */ |
| 365 | /* Longest filename on VMS is 255 characters. Largest version is 32768. */ |
| 366 | char * |
| 367 | vms_dwarf2_file_name (const char *filename, const char *dirname) |
| 368 | { |
| 369 | int ver; |
| 370 | static char buff [255 + 7]; |
| 371 | |
| 372 | vms_file_stats_name (dirname, filename, 0, 0, 0, &ver); |
| 373 | snprintf (buff, 255 + 7, "%s;%d", filename, ver); |
| 374 | return buff; |
| 375 | } |