ld/testsuite/ld-srec/srec.exp

   1 # Test linking directly to S-records.
   2 # By Ian Lance Taylor, Cygnus Support.
   3 #   Copyright 2001, 2002, 2003
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 # Get the offset from an S-record line to the start of the data.
  21
  22 proc srec_off { l } {
  23     if [string match "S1*" $l] {
  24         return 8
  25     } else { if [string match "S2*" $l] {
  26         return 10
  27     } else { if [string match "S3*" $l] {
  28         return 12
  29     } else {
  30         return -1
  31     } } }
  32 }
  33
  34 # See if an S-record line contains only zero data.
  35
  36 proc srec_zero { l } {
  37     if [string match "S\[0789\]*" $l] {
  38         return 1
  39     }
  40
  41     # Strip the address and checksum.
  42     if [string match "S\[123\]*" $l] {
  43         set l [string range $l [srec_off $l] [expr [string length $l] - 3]]
  44     } else {
  45         return 0
  46     }
  47
  48     # The rest must be zero.
  49     return [string match "" [string trim $l "0"]]
  50 }
  51
  52 # Get the address of an S-record line.
  53
  54 proc srec_addr { l } {
  55     if [string match "S\[123\]*" $l] {
  56         set addr [string range $l 4 [expr [srec_off $l] - 1]]
  57     } else {
  58         return -1
  59     }
  60
  61     return "0x$addr"
  62 }
  63
  64 # Get the number of data bytes in an S-record line.
  65
  66 proc srec_len { l } {
  67     if ![string match "S\[123\]*" $l] {
  68         return 0
  69     }
  70
  71     return [expr "0x[string range $l 2 3]" - ([srec_off $l] - 4) / 2 - 1]
  72 }
  73
  74 # Extract bytes from an S-record line.
  75
  76 proc srec_extract { l start len } {
  77     set off [srec_off $l]
  78     set rlen [srec_len $l]
  79     set stop [expr $start + $len]
  80     if { $stop > $rlen } {
  81         set stop [expr $rlen]
  82     }
  83     set start [expr $start * 2 + $off]
  84     set stop [expr $stop * 2 + $off - 1]
  85     return [string range $l $start $stop]
  86 }
  87
  88 # See if a range of bytes in an S-record line is all zeroes.
  89
  90 proc srec_zero_range { l start len } {
  91     return [string match "" [string trim [srec_extract $l $start $len] "0"]]
  92 }
  93
  94 # Trim an S-record line such that the specified number of bytes remain
  95 # at the end.
  96
  97 proc srec_trim { l leave } {
  98     set off [srec_off $l]
  99     set addr [srec_addr $l]
 100     set len [srec_len $l]
 101
 102     if { $leave >= $len } {
 103         return $l
 104     }
 105
 106     set s1 [string range $l 0 1]
 107     set s2 [format "%02x" [expr ($off - 4) / 2 + $leave + 1]]
 108     set s3 [format "%0[expr $off - 4]x" [expr $addr + $len - $leave]]
 109     set s4 [string range $l [expr [string length $l] - ($leave * 2) - 2] end]
 110     set s "${s1}${s2}${s3}${s4}"
 111
 112     verbose "srec_trim { '$l' $leave } returning '$s'" 2
 113
 114     return $s
 115 }
 116
 117 # Report failure when comparing S-record lines
 118
 119 proc srec_compare_fail { which l1 l2 } {
 120     send_log "comparison failure $which:\n$l1\n$l2\n"
 121     verbose "comparison failure $which:\n$l1\n$l2"
 122 }
 123
 124 # Compare S-record files.  We don't want to fuss about things like
 125 # extra zeroes.  Note that BFD always sorts S-records by address.
 126
 127 proc srec_compare { f1 f2 } {
 128     set e1 [gets $f1 l1]
 129     set e2 [gets $f2 l2]
 130
 131     while { $e1 != -1 } {
 132         set l1 [string trimright $l1 "\r\n"]
 133         set l2 [string trimright $l2 "\r\n"]
 134         if { $e2 == -1 } {
 135             # If l1 contains data, it must be zero.
 136             if ![srec_zero $l1] {
 137                 send_log "data after EOF: $l1\n"
 138                 verbose "data after EOF: $l1"
 139                 return 0
 140             }
 141         } else { if { [string compare $l1 $l2] == 0 } {
 142             set e1 [gets $f1 l1]
 143             set e2 [gets $f2 l2]
 144         } else { if { [srec_zero $l1] } {
 145             set e1 [gets $f1 l1]
 146         } else { if { [srec_zero $l2] } {
 147             set e2 [gets $f2 l2]
 148         } else {
 149             # The strings are not the same, and neither is all zeroes.
 150             set a1 [srec_addr $l1]
 151             set n1 [srec_len $l1]
 152             set a2 [srec_addr $l2]
 153             set n2 [srec_len $l2]
 154
 155             if { $a1 < $a2 && ![srec_zero_range $l1 0 [expr $a2 - $a1]] } {
 156                 verbose "$a1 $a2 [srec_extract $l1 0 [expr $a2 - $a1]]" 2
 157                 srec_compare_fail 1 $l1 $l2
 158                 return 0
 159             }
 160             if { $a2 < $a1 && ![srec_zero_range $l2 0 [expr $a1 - $a2]] } {
 161                 srec_compare_fail 2 $l1 $l2
 162                 return 0
 163             }
 164
 165             # Here we know that any initial data in both lines is
 166             # zero.  Now make sure that any overlapping data matches.
 167             if { $a1 < $a2 } {
 168                 set os1 [expr $a2 - $a1]
 169                 set os2 0
 170             } else {
 171                 set os1 0
 172                 set os2 [expr $a1 - $a2]
 173             }
 174             if { $a1 + $n1 < $a2 + $n2 } {
 175                 set ol [expr $n1 - $os1]
 176             } else {
 177                 set ol [expr $n2 - $os2]
 178             }
 179
 180             set x1 [srec_extract $l1 $os1 $ol]
 181             set x2 [srec_extract $l2 $os2 $ol]
 182             if { [string compare $x1 $x2] != 0 } {
 183                 verbose "$os1 $ol $x1" 2
 184                 verbose "$os2 $ol $x2" 2
 185                 srec_compare_fail 3 $l1 $l2
 186                 return 0
 187             }
 188
 189             # These strings match.  Trim the data from the larger
 190             # string, read a new copy of the smaller string, and
 191             # continue.
 192             if { $a1 + $n1 < $a2 + $n2 } {
 193                 set l2 [srec_trim $l2 [expr ($a2 + $n2) - ($a1 + $n1)]]
 194                 set e1 [gets $f1 l1]
 195             } else { if { $a1 + $n1 > $a2 + $n2 } {
 196                 set l1 [srec_trim $l1 [expr ($a1 + $n1) - ($a2 + $n2)]]
 197                 set e2 [gets $f2 l2]
 198             } else {
 199                 set e1 [gets $f1 l1]
 200                 set e2 [gets $f2 l2]
 201             } }
 202         } } } }
 203     }
 204
 205     # We've reached the end of the first file.  The remainder of the
 206     # second file must contain only zeroes.
 207     while { $e2 != -1 } {
 208         set l2 [string trimright $l2 "\r\n"]
 209         if ![srec_zero $l2] {
 210             send_log "data after EOF: $l2\n"
 211             verbose "data after EOF: $l2"
 212             return 0
 213         }
 214         set e2 [gets $f2 l2]
 215     }
 216
 217     return 1
 218 }
 219
 220 # Link twice, objcopy, and compare
 221
 222 proc run_srec_test { test objs } {
 223     global ld
 224     global objcopy
 225     global sizeof_headers
 226     global host_triplet
 227
 228     # Tell the ELF linker to not do anything clever with .eh_frame.
 229     set flags "--traditional-format"
 230
 231     # If the linker script uses SIZEOF_HEADERS, use a -Ttext argument
 232     # to force both the normal link and the S-record link to be put in
 233     # the same place.  We don't always use -Ttext because it interacts
 234     # poorly with a.out.
 235
 236     if { $sizeof_headers } {
 237         set flags "$flags -Ttext 0x1000"
 238     }
 239
 240     # The a29k compiled code calls V_SPILL and V_FILL.  Since we don't
 241     # need to run this code, but we don't have definitions for those
 242     # functions, we just define them out.
 243     if [istarget a29k*-*-*] {
 244         set flags "$flags --defsym V_SPILL=0 --defsym V_FILL=0"
 245     }
 246
 247     if [istarget sh64*-*-elf] {
 248         # This is what gcc passes to ld by default.
 249         set flags "-mshelf32"
 250         # SH64 targets cannot convert format in the linker
 251         # using the -oformat command line switch.
 252         setup_xfail "sh64*-*-*"
 253     }
 254
 255     if {[istarget arm*-*-*]       || \
 256         [istarget strongarm*-*-*] || \
 257         [istarget xscale*-*-*]    || \
 258         [istarget thumb-*-*] } {
 259
 260         # ARM targets call __gccmain
 261         set flags "$flags --defsym __gccmain=0"
 262
 263         # ARM targets cannot convert format in the linker
 264         # using the --oformat command line switch
 265         setup_xfail "*arm*-*-*"
 266         setup_xfail "xscale-*-*"
 267         setup_xfail "thumb-*-*"
 268     }
 269
 270     # PowerPC EABI code calls __eabi.
 271     if [istarget powerpc*-*-eabi*] {
 272         set flags "$flags --defsym __eabi=0"
 273     }
 274
 275     # mn10200 code calls __truncsipsi2_d0_d2.
 276     if {[istarget mn10200*-*-*]} then {
 277         set flags "$flags --defsym __truncsipsi2_d0_d2=0"
 278     }
 279
 280     # m6811/m6812 code has references to soft registers.
 281     if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
 282         set flags "$flags --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
 283         set flags "$flags --defsym _.d3=0 --defsym _.d4=0"
 284         set flags "$flags --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
 285     }
 286
 287     # V850 targets need libgcc.a
 288     if [istarget v850*-*-elf] {
 289         set objs "$objs -L ../gcc -lgcc"
 290     }
 291
 292     # Xtensa ELF targets relax by default; S-Record linker does not
 293     if [istarget xtensa*-*-*] {
 294         set flags "$flags -no-relax"
 295     }
 296
 297     if { ![ld_simple_link $ld tmpdir/sr1 "$flags $objs"] \
 298          || ![ld_simple_link $ld tmpdir/sr2.sr "$flags --oformat srec $objs"] } {
 299         fail $test
 300         return
 301     }
 302
 303     send_log "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr\n"
 304     verbose "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr"
 305     catch "exec $objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr" exec_output
 306     set exec_output [prune_warnings $exec_output]
 307     if ![string match "" $exec_output] {
 308         send_log "$exec_output\n"
 309         verbose "$exec_output"
 310         unresolved $test
 311         return
 312     }
 313
 314     set f1 [open tmpdir/sr1.sr r]
 315     set f2 [open tmpdir/sr2.sr r]
 316     if [srec_compare $f1 $f2] {
 317         pass $test
 318     } else {
 319         fail $test
 320     }
 321     close $f1
 322     close $f2
 323 }
 324
 325 set test1 "S-records"
 326 set test2 "S-records with constructors"
 327
 328 # See whether the default linker script uses SIZEOF_HEADERS.
 329 catch "exec $ld --verbose" exec_output
 330 set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
 331
 332 # First test linking a C program.  We don't require any libraries.  We
 333 # link it normally, and objcopy to the S-record format, and then link
 334 # directly to the S-record format, and require that the two files
 335 # contain the same data.
 336
 337 if { [which $CC] == 0 } {
 338     untested $test1
 339     untested $test2
 340     return
 341 }
 342
 343 if { ![ld_compile $CC $srcdir/$subdir/sr1.c tmpdir/sr1.o] \
 344      || ![ld_compile $CC $srcdir/$subdir/sr2.c tmpdir/sr2.o] } {
 345     unresolved $test1
 346     unresolved $test2
 347     return
 348 }
 349
 350 # The i386-aout target is confused: the linker does not put the
 351 # sections where objdump finds them.  I don't know which is wrong.
 352 setup_xfail "i*86-*-aout*"
 353
 354 # These tests fail on the native MIPS ELF targets because the GP value
 355 # in the .reginfo section is not updated when the S-record version is
 356 # written out.  The mips-elf target itself does not use a .reginfo section.
 357 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
 358
 359 # The S-record linker doesn't do the magic TOC handling that XCOFF
 360 # linkers do.
 361 setup_xfail "*-*-aix*" "*-*-xcoff*"
 362
 363 # The S-record linker doesn't build ARM/Thumb stubs.
 364 setup_xfail "arm-*-coff"
 365 setup_xfail "strongarm*-*-coff"
 366 setup_xfail "xscale*-*-coff"
 367 setup_xfail "arm-*-pe*"
 368 # setup_xfail "arm-*elf*"
 369 setup_xfail "thumb-*-coff*"
 370 setup_xfail "thumb-*-pe*"
 371 setup_xfail "thumb-*-elf*"
 372 setup_xfail "arm*-*-linux*"
 373
 374 # The S-record linker doesn't build special EABI sections.
 375 # setup_xfail "powerpc*-*-eabi*"
 376
 377 # The S-record linker doesn't include the .{zda} sections.
 378 setup_xfail "v850*-*-elf"
 379
 380 # The S-record linker doesn't handle Alpha Elf relaxation.
 381 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-gnu*" "alpha*-*-gnu*"
 382 setup_xfail "alpha*-*-netbsd*"
 383
 384 # The S-record linker hasn't any hope of coping with HPPA relocs.
 385 setup_xfail "hppa*-*-*"
 386
 387 # The S-record linker doesn't handle IA64 Elf relaxation.
 388 setup_xfail "ia64-*-*"
 389
 390 # The S-record linker doesn't support the special PE headers - the PE
 391 # emulation tries to write pe-specific information to the PE headers
 392 # in the output bfd, but it's not a PE bfd (it's an srec bfd)
 393 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
 394
 395 run_srec_test $test1 "tmpdir/sr1.o tmpdir/sr2.o"
 396
 397 # Now try linking a C++ program with global constructors and
 398 # destructors.  Note that since we are not linking against any
 399 # libraries, this program won't actually work or anything.
 400
 401 if { [which $CXX] == 0 } {
 402     untested $test2
 403     return
 404 }
 405
 406 if ![ld_compile "$CXX $CXXFLAGS -fno-exceptions" $srcdir/$subdir/sr3.cc tmpdir/sr3.o] {
 407     unresolved $test2
 408     return
 409 }
 410
 411 # See above.
 412 setup_xfail "i*86-*-aout*"
 413 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
 414 setup_xfail "*-*-aix*" "*-*-xcoff*"
 415 setup_xfail "arm*-*-*"
 416 setup_xfail "strongarm*-*-*"
 417 setup_xfail "thumb-*-*"
 418 setup_xfail "powerpc*-*-eabi*"
 419 setup_xfail "v850*-*-elf"
 420 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-gnu*" "alpha*-*-gnu*"
 421 setup_xfail "alpha*-*-netbsd*"
 422 setup_xfail "hppa*-*-*"
 423 setup_xfail "ia64-*-*"
 424 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
 425
 426 run_srec_test $test2 "tmpdir/sr3.o"