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Diffstat (limited to 'gcc/testsuite/lib/compat.exp')
| -rw-r--r-- | gcc/testsuite/lib/compat.exp | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/gcc/testsuite/lib/compat.exp b/gcc/testsuite/lib/compat.exp new file mode 100644 index 00000000000..89cf5ae5e0f --- /dev/null +++ b/gcc/testsuite/lib/compat.exp @@ -0,0 +1,240 @@ +# Copyright (C) 2002 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# This file was written by Janis Johnson, <janis187@us.ibm.com> + + +# Test interoperability of two compilers that follow the same ABI, or +# compatibility of two versions of GCC. +# +# Each test has a main program that does nothing but call a function, +# plus two additional source files that contain parts of a program that +# rely on the ABI. those source files are compiled into relocatable +# object files with both compilers. Executables are built using various +# combinations of those object files, with the main program compiled +# with the compiler under test and using that compiler's runtime support. + +# The including .exp file must define these callback procedures. +if [string match "" [info procs "compat-use-alt-compiler"]] then { + error "Proc compat-use-alt-compiler is not defined." +} +if [string match "" [info procs "compat-use-tst-compiler"]] then { + error "Proc compat-use-tst-compiler is not defined." +} + +# Each test is run with each pair of compiler options from this list. +# The first set of options in each pair is used by the compiler under +# test, and the second set is used by the alternate compiler. +# The default option lists can be overridden by +# COMPAT_OPTIONS="[list [list {tst_1} {alt_1}]...[list {tst_n} {alt_n}]]" +# where tst_i and alt_i are lists of options. You can put this in the +# environment before site.exp is written or add it to site.exp directly. +if ![info exists COMPAT_OPTIONS] { + set COMPAT_OPTIONS [list \ + [list {} {}]] +} + +set option_list $COMPAT_OPTIONS + +# +# compat-obj -- compile to an object file +# +# SOURCE is the source file +# DEST is the object file +# OPTIONS is the list of compiler options +# OPTSTR is the options to print with test messages +# +proc compat-obj { source dest options optstr } { + global testcase + global tool + + set comp_output [${tool}_target_compile "$source" "$dest" object $options] + ${tool}_check_compile "$testcase $dest compile" $optstr $dest $comp_output +} + +# compat-run -- link and run an executable +# +# TESTNAME is the mixture of object files to link +# OBJLIST is the list of object files to link +# DEST is the name of the executable +# OPTIONS is a list of compiler and linker options to use +# OPTSTR is the list of options to list in messages +# +proc compat-run { testname objlist dest options optstr } { + global testcase + global tool + + # Check that all of the objects were built successfully. + foreach obj [split $objlist] { + if ![file exists $obj] then { + unresolved "$testcase $testname link $optstr" + unresolved "$testcase $testname execute $optstr" + return + } + } + + # Link the objects into an executable. + set comp_output [${tool}_target_compile "$objlist" $dest executable \ + "$options"] + if ![${tool}_check_compile "$testcase $testname link" "" \ + $dest $comp_output] then { + unresolved "$testcase $testname execute $optstr" + return + } + + # Run the self-checking executable. + if ![string match "*/*" $dest] then { + set dest "./$dest" + } + set result [${tool}_load $dest "" ""] + set status [lindex $result 0] + if { $status == "pass" } then { + remote_file build delete $dest + } + $status "$testcase $testname execute $optstr" +} + +# +# compat-execute -- compile with compatible compilers +# +# SRC1 is the full pathname of the main file of the testcase. +# USE_ALT is nonzero if we're using an alternate compiler as well as +# the compiler under test. +# +proc compat-execute { src1 use_alt } { + global srcdir tmpdir + global option_list + global tool + global verbose + global testcase + global gluefile + + # Use the dg-options mechanism to specify extra flags for this test. + # FIXME: This does not handle other uses of dg-options, and it only + # processes the first one. + set extra_tool_flags "" + set tmp [grep $src1 "{\[ \t\]\*dg-options.*\[ \t\]\+}"] + if ![string match "" $tmp] { + set tmp0 [lindex $tmp 0] + # Extract the compiler options. + regexp "dg-options\[ \t\]\+(.*)\[ \t\]\+\}" \ + $tmp0 all args + # Sometime the options are in quotes, sometimes not. + regsub -all "\"" $args "" args + set extra_tool_flags $args + } + + # Set up the names of the other source files. + regsub "_main.*" $src1 "" base + regsub ".*/" $base "" base + regsub "_main" $src1 "_x" src2 + regsub "_main" $src1 "_y" src3 + + # Define the names of the object files. + set obj1 "main_tst.o" + set obj2_tst "x_tst.o" + set obj2_alt "x_alt.o" + set obj3_tst "y_tst.o" + set obj3_alt "y_alt.o" + + # Get the base name of this test, for use in messages. + regsub "^$srcdir/?" $src1 "" testcase + regsub "_main.*" $testcase "" testcase + # Set up the base name of executable files so they'll be unique. + regsub -all "\[./\]" $testcase "-" execbase + + # If we couldn't rip $srcdir out of `src1' then just do the best we can. + # The point is to reduce the unnecessary noise in the logs. Don't strip + # out too much because different testcases with the same name can confuse + # `test-tool'. + if [string match "/*" $testcase] then { + set testcase "[file tail [file dirname $src1]]/[file tail $src1]" + } + + # Loop through all of the option lists used for this test. + + set count 0 + foreach option_pair $option_list { + + # Pick out each set of options. + set tst_option [lindex $option_pair 0] + set alt_option [lindex $option_pair 1] + set optstr "" + if { ![string match $tst_option ""] \ + || ![string match $alt_option ""] } then { + set optstr "\"$tst_option\",\"$alt_option\"" + } + verbose "Testing $testcase, $optstr" 1 + + set tst_options "" + set alt_options "" + if ![string match $extra_tool_flags ""] then { + lappend tst_options "additional_flags=$extra_tool_flags $tst_option" + lappend alt_options "additional_flags=$extra_tool_flags $alt_option" + } + + # There's a unique name for each executable we generate, based on + # the set of options and how the pieces of the tests are compiled. + set execname1 "${execbase}-${count}1" + set execname2 "${execbase}-${count}2" + set execname3 "${execbase}-${count}3" + set execname4 "${execbase}-${count}4" + incr count + + remote_file build delete $execname1 + remote_file build delete $execname2 + remote_file build delete $execname3 + remote_file build delete $execname4 + + # Compile pieces with the alternate compiler; we'll catch problems + # later. Skip this if we don't have an alternate compiler. + if { $use_alt != 0 } then { + compat-use-alt-compiler + compat-obj "$src2" "$obj2_alt" $alt_options $optstr + compat-obj "$src3" "$obj3_alt" $alt_options $optstr + } + + # Compile pieces with the compiler under test. + compat-use-tst-compiler + compat-obj "$src1" "$obj1" $tst_options $optstr + compat-obj "$src2" "$obj2_tst" $tst_options $optstr + compat-obj "$src3" "$obj3_tst" $tst_options $optstr + + # Link (using the compiler under test), run, and clean up tests. + compat-run "${obj2_tst}-${obj3_tst}" \ + "$obj1 $obj2_tst $obj3_tst" $execname1 $tst_options $optstr + + # If we've got an alternate compiler try some combinations. + if { $use_alt != 0 } then { + compat-run "${obj2_tst}-${obj3_alt}" "$obj1 $obj2_tst $obj3_alt" \ + $execname2 $tst_options $optstr + compat-run "${obj2_alt}-${obj3_tst}" "$obj1 $obj2_alt $obj3_tst" \ + $execname3 $tst_options $optstr + compat-run "${obj2_alt}-${obj3_alt}" "$obj1 $obj2_alt $obj3_alt" \ + $execname4 $tst_options $optstr + } + + # Clean up object files. + set files [glob -nocomplain *.o] + if { $files != "" } { + foreach objfile $files { + if { ![info exists gluefile] || $objfile != $gluefile } { + eval "remote_file build delete $objfile" + } + } + } + } +} |