# 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"
}
}
}
}
}