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# Copyright (C) 2009-2013 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 3 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 GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
global gdb_tests
set gdb_tests {}
# Scan a file for markers and fill in the gdb_marker array for that
# file. Any error in this script is simply thrown; errors here are
# programming errors in the test suite itself and should not be
# caught.
proc scan_gdb_markers {filename} {
global gdb_markers
if {[info exists gdb_markers($filename,-)]} {
return
}
set fd [open $filename]
set lineno 1
while {! [eof $fd]} {
set line [gets $fd]
if {[regexp -- "Mark (\[a-zA-Z0-9\]+)" $line ignore marker]} {
set gdb_markers($filename,$marker) $lineno
}
incr lineno
}
close $fd
set gdb_markers($filename,-) {}
}
# Find a marker in a source file, and return the marker's line number.
proc get_line_number {filename marker} {
global gdb_markers
scan_gdb_markers $filename
return $gdb_markers($filename,$marker)
}
# Make note of a gdb test. A test consists of a variable name and an
# expected result.
proc note-test {var result} {
global gdb_tests
lappend gdb_tests $var $result 0
}
# A test that uses a regular expression. This is like note-test, but
# the result is a regular expression that is matched against the
# output.
proc regexp-test {var result} {
global gdb_tests
lappend gdb_tests $var $result 1
}
# A test of 'whatis'. This tests a type rather than a variable.
proc whatis-test {var result} {
global gdb_tests
lappend gdb_tests $var $result whatis
}
# Utility for testing variable values using gdb, invoked via dg-final.
# Tests all tests indicated by note-test and regexp-test.
#
# Argument 0 is the marker on which to put a breakpoint
# Argument 2 handles expected failures and the like
proc gdb-test { marker {selector {}} } {
if { ![isnative] || [is_remote target] } { return }
if {[string length $selector] > 0} {
switch [dg-process-target $selector] {
"S" { }
"N" { return }
"F" { setup_xfail "*-*-*" }
"P" { }
}
}
set do_whatis_tests [gdb_batch_check "python print gdb.type_printers" \
"\\\[\\\]"]
if {!$do_whatis_tests} {
send_log "skipping 'whatis' tests - gdb too old"
}
# This assumes that we are three frames down from dg-test, and that
# it still stores the filename of the testcase in a local variable "name".
# A cleaner solution would require a new DejaGnu release.
upvar 2 name testcase
upvar 2 prog prog
set line [get_line_number $prog $marker]
set gdb_name $::env(GUALITY_GDB_NAME)
set testname "$testcase"
set output_file "[file rootname [file tail $prog]].exe"
set cmd_file "[file rootname [file tail $prog]].gdb"
global srcdir
set pycode [file join $srcdir .. python libstdcxx v6 printers.py]
global gdb_tests
set fd [open $cmd_file "w"]
puts $fd "source $pycode"
puts $fd "python register_libstdcxx_printers(None)"
puts $fd "break $line"
puts $fd "run"
set count 0
foreach {var result kind} $gdb_tests {
incr count
set gdb_var($count) $var
set gdb_expected($count) $result
if {$kind == "whatis"} {
if {$do_whatis_tests} {
set gdb_is_type($count) 1
set gdb_command($count) "whatis $var"
} else {
unsupported "$testname"
close $fd
return
}
} else {
set gdb_is_type($count) 0
set gdb_is_regexp($count) $kind
set gdb_command($count) "print $var"
}
puts $fd $gdb_command($count)
}
set gdb_tests {}
puts $fd "quit"
close $fd
send_log "Spawning: $gdb_name -nx -nw -quiet -batch -x $cmd_file ./$output_file\n"
set res [remote_spawn target "$gdb_name -nx -nw -quiet -batch -x $cmd_file ./$output_file"]
if { $res < 0 || $res == "" } {
unsupported "$testname"
return
}
set test_counter 0
remote_expect target [timeout_value] {
-re {^(type|\$([0-9]+)) = ([^\n\r]*)[\n\r]+} {
send_log "got: $expect_out(buffer)"
incr test_counter
set first $expect_out(3,string)
if {$gdb_is_type($test_counter)} {
if {$expect_out(1,string) != "type"} {
error "gdb failure"
}
set match [expr {![string compare $first \
$gdb_expected($test_counter)]}]
} elseif {$gdb_is_regexp($test_counter)} {
set match [regexp -- $gdb_expected($test_counter) $first]
} else {
set match [expr {![string compare $first \
$gdb_expected($test_counter)]}]
}
if {$match} {
pass "$testname $gdb_command($test_counter)"
} else {
fail "$testname $gdb_command($test_counter)"
verbose " got =>$first<="
verbose "expected =>$gdb_expected($test_counter)<="
}
if {$test_counter == $count} {
remote_close target
return
} else {
exp_continue
}
}
-re {Python scripting is not supported in this copy of GDB.[\n\r]+} {
unsupported "$testname"
remote_close target
return
}
-re {^[^$][^\n\r]*[\n\r]+} {
send_log "skipping: $expect_out(buffer)"
exp_continue
}
timeout {
unsupported "$testname"
remote_close target
return
}
}
remote_close target
unsupported "$testname"
return
}
# Invoke gdb with a command and pattern-match the output.
proc gdb_batch_check {command pattern} {
set gdb_name $::env(GUALITY_GDB_NAME)
set cmd "$gdb_name -nw -nx -quiet -batch -ex \"$command\""
send_log "Spawning: $cmd\n"
if [catch { set res [remote_spawn target "$cmd"] } ] {
return 0
}
if { $res < 0 || $res == "" } {
return 0
}
remote_expect target [timeout_value] {
-re $pattern {
return 1
}
-re {^[^\n\r]*[\n\r]+} {
verbose "skipping: $expect_out(buffer)"
exp_continue
}
timeout {
remote_close target
return 0
}
}
remote_close target
return 0
}
# Check for a new-enough version of gdb. The pretty-printer tests
# require gdb 7.3, but we don't want to test versions, so instead we
# check for the python "lookup_global_symbol" method, which is in 7.3
# but not earlier versions.
# Return 1 if the version is ok, 0 otherwise.
proc gdb_version_check {} {
return [gdb_batch_check "python print gdb.lookup_global_symbol" \
"<built-in function lookup_global_symbol>"]
}