ld/testsuite/ld-sh/arch/arch.exp

   1 # Copyright (C) 2004, 2005, 2006, 2007, 2008
   2 # Free Software Foundation, Inc.
   3 #
   4 # This file is part of the GNU Binutils.
   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
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   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,
  19 # MA 02110-1301, USA.
  20
  21
  22 # Please email any bugs, comments, and/or additions to this file to:
  23 # binutils@sources.redhat.com
  24
  25 # This scripts tests of all available SH architectures with all other SH
  26 # architectures. It ensures that those combinations which should not work
  27 # do not work, and that those that should work produce the correct output
  28 # architecture.
  29 #
  30 # It looks for files in the same directory as this file named sh*.s .
  31 # Each file must contain one or more instructions which uniquely identifies
  32 # that architecture. The architecture name is inferred from the file name.
  33 # It is best to use the same files used by the assembler testsuite.
  34 #
  35 # It also creates another architecture named 'sh-unknown' by modifying
  36 # another arch type (there is no way to assemble such an arch) in order
  37 # to test what the linker would do with an older object file.
  38 #
  39 # The script generates the architecture permutations automatically,
  40 # but it reads the expected results from the file arch_expected.txt (also
  41 # found in the same directory as this script).
  42 #
  43 # The arch_expected.txt file should NOT be hand edited. Whenever the script
  44 # is run (e.g. with 'make check') it creates a new (usually identical) file
  45 # named arch_results.txt in the <objdir>/ld/testsuite directory. When the
  46 # expected results change (or new architectures are added) this new file
  47 # can be used to replace arch_expected.txt with no modification required.
  48
  49
  50 # The procedure extracts the architecture name from the objdump output.
  51 # If there is no architecture name (or objdump output changes significantly)
  52 # then the behaviour is undefined, but it will most likely return junk.
  53
  54 proc get_sh_arch { ofile } {
  55     global OBJDUMP
  56
  57     set cmd "$OBJDUMP -f $ofile"
  58     verbose -log $cmd
  59     catch "exec $cmd" objdump_output
  60     verbose -log $objdump_output
  61
  62     set objdump_output [string replace $objdump_output 0 \
  63             [expr [string first "architecture:" $objdump_output] + 13] ""]
  64
  65     return [string range $objdump_output 0 [expr [string first "," $objdump_output] - 1]]
  66 }
  67
  68
  69 # This procedure runs two tests:
  70 #   Test 1: Check the linker can link the given files.
  71 #   Test 2: Check that the resultant architecture is as expected.
  72 # It also writes an entry to the arch_results.txt file.
  73
  74 proc test_arch { file1 file2 arch resultfile } {
  75     global LD
  76
  77     set name1 [file tail $file1]
  78     set rootname1 [file rootname $name1]
  79
  80     set name2 [file tail $file2]
  81     set rootname2 [file rootname $name2]
  82
  83     set flags [big_or_little_endian]
  84
  85     # This must use -r to prevent LD trying to relocate the (unrealistic) file
  86     send_log "$LD $flags -r -o ${rootname1}_${rootname2}.o $file1 $file2\n"
  87     catch "exec $LD $flags -r -o ${rootname1}_${rootname2}.o $file1 $file2" ld_output
  88     send_log $ld_output
  89
  90     if {[string equal $ld_output ""] == 1} then {
  91         pass "$rootname1 file should link with $rootname2 file"
  92
  93         set result [get_sh_arch "${rootname1}_${rootname2}.o"]
  94         puts $resultfile [format "%-20s %-20s %s" $file1 $file2 $result]
  95
  96         if {$result == $arch} then {
  97             pass "$rootname1 file with $rootname2 file should link to arch $arch"
  98             file delete "${rootname1}_${rootname2}.o"
  99         } else {
 100             fail "$rootname1 file with $rootname2 file should link to arch $arch"
 101         }
 102     } else {
 103         fail "$rootname1 file should link with $rootname2 file"
 104
 105         puts $resultfile [format "%-20s %-20s ERROR" $file1 $file2]
 106         untested "$rootname2 file with $rootname2 file should link to arch $arch"
 107     }
 108
 109 }
 110
 111
 112
 113 # This procedure tests that a pair of files that are not
 114 # suposed to link does, in fact, not link.
 115 # It also writes an entry to the arch_results.txt file.
 116
 117 proc test_arch_error { file1 file2 resultfile} {
 118     global link_output LD
 119
 120     set name1 [file tail $file1]
 121     set rootname1 [file rootname $name1]
 122
 123     set name2 [file tail $file2]
 124     set rootname2 [file rootname $name2]
 125
 126     # This must use -r to prevent LD trying to relocate the (unrealistic) file
 127     send_log "$LD -r -o ${rootname1}_${rootname2}.o $file1 $file2\n"
 128     catch "exec $LD -r -o ${rootname1}_${rootname2}.o $file1 $file2" ld_output
 129     send_log $ld_output
 130
 131     if {[string equal $ld_output ""] == 1} then {
 132         fail "$rootname1 file should NOT link with $rootname2 file"
 133         puts $resultfile [format "%-20s %-20s [get_sh_arch ${rootname1}_${rootname2}.o]" $file1 $file2]
 134     } else {
 135         pass "$rootname1 file should NOT link with $rootname2 file"
 136         puts $resultfile [format "%-20s %-20s ERROR" $file1 $file2]
 137     }
 138 }
 139
 140 # These tests are not suitable for sh-coff because
 141 # coff does not store the architecture information.
 142
 143 if [istarget sh*-*-elf] then {
 144     global subdir srcdir
 145     global AS
 146
 147     # Find all the architectures and assemble all the files
 148     # we will use for the linker tests.
 149
 150     set sfilelist [lsort -ascii [glob "$srcdir/$subdir/sh*.s"]]
 151     set ofilelist {}
 152     foreach sfile $sfilelist {
 153         set ofile "[file rootname [file tail $sfile]].o"
 154         lappend ofilelist $ofile
 155
 156         set endian "-big"
 157         if [string equal [big_or_little_endian] " -EL"] then {
 158             set endian "-little"
 159         }
 160
 161         set cmd "$AS $endian -isa=any $sfile -o $ofile"
 162         verbose -log $cmd
 163         catch "exec $cmd" as_output
 164         if ![file exists $ofile] then {
 165             verbose -log $as_output
 166             perror "$sfile: assembly failed"
 167         }
 168     }
 169
 170     # Create the default arch ofile
 171     # This cannot be created with the assembler
 172     # sh4al-dsp is number 6, sh-unknown is 0
 173
 174     lappend ofilelist "sh-unknown.o"
 175
 176     if [string equal [big_or_little_endian] " -EL"] then {
 177         set cmd {xxd sh4al-dsp.o | sed {s/\(^0000020: .... .... \)06/\100/} | xxd -r - sh-unknown.o}
 178     } else {
 179         set cmd {xxd sh4al-dsp.o | sed {s/\(^0000020: .... .... .... ..\)06/\100/} | xxd -r - sh-unknown.o}
 180     }
 181     verbose -log $cmd
 182     catch "exec $cmd" xxd_output
 183     verbose -log $xxd_output
 184     if [string equal [get_sh_arch "sh-unknown.o"] "sh4al-dsp"] then {
 185         perror "sh-unknown.o not generated correctly"
 186     }
 187
 188
 189     # Initialise the results file
 190
 191     set outfile [open "arch_results.txt" w 0666]
 192     puts $outfile "# Generated file. DO NOT EDIT"
 193     puts $outfile "#"
 194     puts $outfile "# This file is generated by ld/testsuite/ld-sh/arch/arch.exp ."
 195     puts $outfile "# It contains the expected results of the tests."
 196     puts $outfile "# If the tests are failing because the expected results"
 197     puts $outfile "# have changed then run 'make check' and copy the new file"
 198     puts $outfile "# from <objdir>/ld/arch_results.txt"
 199     puts $outfile "# to   <srcdir>/ld/testsuite/ld-sh/arch/arch_expected.txt ."
 200     puts $outfile "# Make sure the new expected results are ALL correct."
 201     puts $outfile "#"
 202     puts $outfile [format "# %-18s %-20s %s" "FILE1" "FILE2" "OUTPUT"]
 203     puts $outfile [format "# %-18s %-20s %s" "-----" "-----" "------"]
 204
 205     # Open the expected results file and skip the header
 206
 207     set infile [open "$srcdir/$subdir/arch_expected.txt" r]
 208     while {[gets $infile line] >= 0 && [string match {\#*} $line]} {verbose -log "reading '$line'"}
 209
 210     foreach file1 $ofilelist {
 211         foreach file2 $ofilelist {
 212             set name1 [file tail $file1]
 213             set rootname1 [file rootname $name1]
 214
 215             set name2 [file tail $file2]
 216             set rootname2 [file rootname $name2]
 217
 218             # Decode the expected result from the file
 219
 220             scan $line "%s %s %s" exfile1 exfile2 exarch
 221             verbose -log "exfile1 = '$exfile1', exfile2 = '$exfile2', exarch = '$exarch'"
 222             verbose -log "  name1 = '$name1',   name2 = '$name2'"
 223
 224             if {[string equal $exfile1 $name1] && [string equal $exfile2 $file2]} then {
 225                 # The expected result file makes sense and
 226                 # appears up-to-date (the file and options match)
 227
 228                 if {[string equal $exarch "ERROR"]} then {
 229                     test_arch_error $file1 $file2 $outfile
 230                 } else {
 231                     test_arch $file1 $file2 $exarch $outfile
 232                 }
 233             } else {
 234                 # The expected result file isn't right somehow
 235                 # so just try any old test. This will cause
 236                 # many failures, but will genrate the results file.
 237
 238                 test_arch $file1 $file2 $rootname1 $outfile
 239             }
 240
 241             # Read the next line from the expected result file.
 242             # This is at the end because the process of skipping
 243             # the header reads the first real line
 244
 245             if [gets $infile line] then {
 246                 verbose -log "reading '$line'"
 247             }
 248         }
 249     }
 250
 251     close $infile
 252     close $outfile
 253
 254     foreach file $ofilelist {
 255         file delete $file
 256     }
 257 }