| # Copyright (C) 2009-2021 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/>. |
| |
| # Utility for testing variable values using gdb, invoked via dg-final. |
| # Call pass if variable has the desired value, otherwise fail. |
| # |
| # Argument 0 is the line number on which to put a breakpoint |
| # Argument 1 is the name of the variable to be checked |
| # possibly prefixed with type: to get the type of the variable |
| # instead of the value of the variable (the default). |
| # Argument 2 is the expected value (or type) of the variable |
| # When asking for the value, the expected value is produced |
| # calling print on it in gdb. When asking for the type it is |
| # the literal string with extra whitespace removed. |
| # Argument 3 handles expected failures and the like |
| proc gdb-test { useline args } { |
| if { ![isnative] || [is_remote target] } { return } |
| |
| if { [llength $args] >= 4 } { |
| switch [dg-process-target [lindex $args 3]] { |
| "S" { } |
| "N" { return } |
| "F" { setup_xfail "*-*-*" } |
| "P" { } |
| } |
| } |
| |
| # 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 |
| |
| # The command to run on the variable |
| set arg1 [lindex $args 1] |
| if { [string equal -length 5 "type:" $arg1] == 1 } { |
| set command "ptype" |
| set var [string range $arg1 5 end] |
| } else { |
| set command "print" |
| set var $arg1 |
| } |
| |
| set line [lindex $args 0] |
| if { [string range $line 0 0] == "@" } { |
| set line [string range $line 1 end] |
| } else { |
| set line [get-absolute-line $useline $line] |
| } |
| |
| set gdb_name $::env(GUALITY_GDB_NAME) |
| set testname "$testcase line $line [lindex $args 1] == [lindex $args 2]" |
| set output_file "[file rootname [file tail $prog]].exe" |
| set cmd_file "[file rootname [file tail $prog]].gdb" |
| |
| set fd [open $cmd_file "w"] |
| puts $fd "break $line" |
| puts $fd "run" |
| puts $fd "$command $var" |
| if { $command == "print" } { |
| # For values, let gdb interpret them by printing them. |
| puts $fd "print [lindex $args 2]" |
| } else { |
| # Since types can span multiple lines, we need an end marker. |
| puts $fd "echo TYPE_END\\n" |
| } |
| 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" |
| file delete $cmd_file |
| return |
| } |
| |
| remote_expect target [timeout_value] { |
| # Too old GDB |
| -re "Unhandled dwarf expression|Error in sourced command file|<unknown type in " { |
| unsupported "$testname" |
| remote_close target |
| file delete $cmd_file |
| return |
| } |
| # print var; print expected |
| -re {[\n\r]\$1 = ([^\n\r]*)[\n\r]+\$2 = ([^\n\r]*)[\n\r]} { |
| set first $expect_out(1,string) |
| set second $expect_out(2,string) |
| if { $first == $second } { |
| pass "$testname" |
| } else { |
| # We need the -- to disambiguate $first from an option, |
| # as it may be negative. |
| send_log -- "$first != $second\n" |
| fail "$testname" |
| } |
| remote_close target |
| file delete $cmd_file |
| return |
| } |
| # ptype var; |
| -re {[\n\r]type = (.*)[\n\r][\n\r]TYPE_END[\n\r]} { |
| set type $expect_out(1,string) |
| # Squash all extra whitespace/newlines that gdb might use for |
| # "pretty printing" into one so result is just one line. |
| regsub -all {[\n\r\t ]+} $type " " type |
| # Old gdb might output "long int" instead of just "long" |
| # and "short int" instead of just "short". Canonicalize. |
| regsub -all {\mlong int\M} $type "long" type |
| regsub -all {\mshort int\M} $type "short" type |
| set expected [lindex $args 2] |
| if { $type == $expected } { |
| pass "$testname" |
| } else { |
| send_log -- "$type != $expected\n" |
| fail "$testname" |
| } |
| remote_close target |
| file delete $cmd_file |
| return |
| } |
| timeout { |
| unsupported "$testname" |
| remote_close target |
| file delete $cmd_file |
| return |
| } |
| } |
| |
| unsupported "$testname" |
| remote_close target |
| file delete $cmd_file |
| return |
| } |
| |
| # Report the gdb path and version log the .log file |
| # Argument 0 is the gdb path |
| # Argument 1 is the location where gdb is used |
| # |
| proc report_gdb { gdb loc } { |
| if { [catch { exec which $gdb } msg] } { |
| send_log "gdb not found in $loc: $msg\n" |
| return |
| } |
| set gdb [exec which $gdb] |
| send_log "gdb used in $loc: $gdb\n" |
| |
| send_log "gdb used in $loc: " |
| if { [catch { exec $gdb -v } gdb_version] } { |
| send_log "getting version failed:\n" |
| } else { |
| send_log "version:\n" |
| } |
| send_log -- "---\n$gdb_version\n---\n" |
| } |
| |
| # Argument 0 is the option list. |
| # Return the option list, ensuring that at least -Og is present. |
| |
| proc guality_minimal_options { args } { |
| set options [lindex $args 0] |
| foreach opt $options { |
| if { [regexp -- "-Og" $opt] } { |
| return $options |
| } |
| } |
| |
| return [lappend options "-Og"] |
| } |