256 lines
8.9 KiB
Text
256 lines
8.9 KiB
Text
# Copyright (C) 2004-2015 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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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 3 of the License, or
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# (at your option) any later version.
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#
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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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#
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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., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# binutils@sources.redhat.com
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# This scripts tests of all available SH architectures with all other SH
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# architectures. It ensures that those combinations which should not work
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# do not work, and that those that should work produce the correct output
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# architecture.
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#
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# It looks for files in the same directory as this file named sh*.s .
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# Each file must contain one or more instructions which uniquely identifies
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# that architecture. The architecture name is inferred from the file name.
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# It is best to use the same files used by the assembler testsuite.
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#
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# It also creates another architecture named 'sh-unknown' by modifying
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# another arch type (there is no way to assemble such an arch) in order
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# to test what the linker would do with an older object file.
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#
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# The script generates the architecture permutations automatically,
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# but it reads the expected results from the file arch_expected.txt (also
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# found in the same directory as this script).
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#
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# The arch_expected.txt file should NOT be hand edited. Whenever the script
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# is run (e.g. with 'make check') it creates a new (usually identical) file
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# named arch_results.txt in the <objdir>/ld/testsuite directory. When the
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# expected results change (or new architectures are added) this new file
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# can be used to replace arch_expected.txt with no modification required.
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# The procedure extracts the architecture name from the objdump output.
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# If there is no architecture name (or objdump output changes significantly)
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# then the behaviour is undefined, but it will most likely return junk.
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proc get_sh_arch { ofile } {
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global OBJDUMP
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set cmd "$OBJDUMP -f $ofile"
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verbose -log $cmd
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catch "exec $cmd" objdump_output
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verbose -log $objdump_output
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set objdump_output [string replace $objdump_output 0 \
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[expr [string first "architecture:" $objdump_output] + 13] ""]
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return [string range $objdump_output 0 [expr [string first "," $objdump_output] - 1]]
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}
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# This procedure runs two tests:
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# Test 1: Check the linker can link the given files.
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# Test 2: Check that the resultant architecture is as expected.
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# It also writes an entry to the arch_results.txt file.
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proc test_arch { file1 file2 arch resultfile } {
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global LD
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set name1 [file tail $file1]
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set rootname1 [file rootname $name1]
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set name2 [file tail $file2]
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set rootname2 [file rootname $name2]
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set flags [big_or_little_endian]
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# This must use -r to prevent LD trying to relocate the (unrealistic) file
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send_log "$LD $flags -r -o ${rootname1}_${rootname2}.o $file1 $file2\n"
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catch "exec $LD $flags -r -o ${rootname1}_${rootname2}.o $file1 $file2" ld_output
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send_log $ld_output
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if {[string equal $ld_output ""] == 1} then {
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pass "$rootname1 file should link with $rootname2 file"
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set result [get_sh_arch "${rootname1}_${rootname2}.o"]
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puts $resultfile [format "%-20s %-20s %s" $file1 $file2 $result]
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if {$result == $arch} then {
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pass "$rootname1 file with $rootname2 file should link to arch $arch"
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file delete "${rootname1}_${rootname2}.o"
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} else {
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fail "$rootname1 file with $rootname2 file should link to arch $arch"
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}
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} else {
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fail "$rootname1 file should link with $rootname2 file"
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puts $resultfile [format "%-20s %-20s ERROR" $file1 $file2]
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untested "$rootname2 file with $rootname2 file should link to arch $arch"
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}
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}
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# This procedure tests that a pair of files that are not
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# suposed to link does, in fact, not link.
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# It also writes an entry to the arch_results.txt file.
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proc test_arch_error { file1 file2 resultfile} {
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global link_output LD
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set name1 [file tail $file1]
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set rootname1 [file rootname $name1]
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set name2 [file tail $file2]
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set rootname2 [file rootname $name2]
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# This must use -r to prevent LD trying to relocate the (unrealistic) file
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send_log "$LD -r -o ${rootname1}_${rootname2}.o $file1 $file2\n"
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catch "exec $LD -r -o ${rootname1}_${rootname2}.o $file1 $file2" ld_output
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send_log $ld_output
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if {[string equal $ld_output ""] == 1} then {
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fail "$rootname1 file should NOT link with $rootname2 file"
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puts $resultfile [format "%-20s %-20s [get_sh_arch ${rootname1}_${rootname2}.o]" $file1 $file2]
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} else {
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pass "$rootname1 file should NOT link with $rootname2 file"
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puts $resultfile [format "%-20s %-20s ERROR" $file1 $file2]
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}
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}
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# These tests are not suitable for sh-coff because
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# coff does not store the architecture information.
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if [istarget sh*-*-elf] then {
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global subdir srcdir
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global AS
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# Find all the architectures and assemble all the files
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# we will use for the linker tests.
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set sfilelist [lsort -ascii [glob "$srcdir/$subdir/sh*.s"]]
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set ofilelist {}
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foreach sfile $sfilelist {
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set ofile "[file rootname [file tail $sfile]].o"
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lappend ofilelist $ofile
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set endian "-big"
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if [string equal [big_or_little_endian] " -EL"] then {
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set endian "-little"
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}
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set cmd "$AS $endian -isa=any $sfile -o $ofile"
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verbose -log $cmd
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catch "exec $cmd" as_output
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if ![file exists $ofile] then {
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verbose -log $as_output
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perror "$sfile: assembly failed"
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}
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}
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# Create the default arch ofile
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# This cannot be created with the assembler
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# sh4al-dsp is number 6, sh-unknown is 0
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lappend ofilelist "sh-unknown.o"
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if [string equal [big_or_little_endian] " -EL"] then {
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set cmd {xxd sh4al-dsp.o | sed {s/\(^0000020: .... .... \)06/\100/} | xxd -r - sh-unknown.o}
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} else {
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set cmd {xxd sh4al-dsp.o | sed {s/\(^0000020: .... .... .... ..\)06/\100/} | xxd -r - sh-unknown.o}
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}
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verbose -log $cmd
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catch "exec $cmd" xxd_output
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verbose -log $xxd_output
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if [string equal [get_sh_arch "sh-unknown.o"] "sh4al-dsp"] then {
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perror "sh-unknown.o not generated correctly"
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}
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# Initialise the results file
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set outfile [open "arch_results.txt" w 0666]
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puts $outfile "# Generated file. DO NOT EDIT"
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puts $outfile "#"
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puts $outfile "# This file is generated by ld/testsuite/ld-sh/arch/arch.exp ."
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puts $outfile "# It contains the expected results of the tests."
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puts $outfile "# If the tests are failing because the expected results"
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puts $outfile "# have changed then run 'make check' and copy the new file"
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puts $outfile "# from <objdir>/ld/arch_results.txt"
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puts $outfile "# to <srcdir>/ld/testsuite/ld-sh/arch/arch_expected.txt ."
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puts $outfile "# Make sure the new expected results are ALL correct."
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puts $outfile "#"
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puts $outfile [format "# %-18s %-20s %s" "FILE1" "FILE2" "OUTPUT"]
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puts $outfile [format "# %-18s %-20s %s" "-----" "-----" "------"]
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# Open the expected results file and skip the header
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set infile [open "$srcdir/$subdir/arch_expected.txt" r]
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while {[gets $infile line] >= 0 && [string match {\#*} $line]} {verbose -log "reading '$line'"}
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foreach file1 $ofilelist {
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foreach file2 $ofilelist {
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set name1 [file tail $file1]
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set rootname1 [file rootname $name1]
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set name2 [file tail $file2]
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set rootname2 [file rootname $name2]
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# Decode the expected result from the file
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scan $line "%s %s %s" exfile1 exfile2 exarch
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verbose -log "exfile1 = '$exfile1', exfile2 = '$exfile2', exarch = '$exarch'"
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verbose -log " name1 = '$name1', name2 = '$name2'"
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if {[string equal $exfile1 $name1] && [string equal $exfile2 $file2]} then {
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# The expected result file makes sense and
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# appears up-to-date (the file and options match)
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if {[string equal $exarch "ERROR"]} then {
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test_arch_error $file1 $file2 $outfile
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} else {
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test_arch $file1 $file2 $exarch $outfile
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}
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} else {
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# The expected result file isn't right somehow
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# so just try any old test. This will cause
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# many failures, but will genrate the results file.
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test_arch $file1 $file2 $rootname1 $outfile
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}
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# Read the next line from the expected result file.
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# This is at the end because the process of skipping
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# the header reads the first real line
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if [gets $infile line] then {
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verbose -log "reading '$line'"
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}
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}
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}
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close $infile
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close $outfile
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foreach file $ofilelist {
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file delete $file
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}
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}
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