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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [lib/] [gcc-gdb-test.exp] - Rev 708

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#   Copyright (C) 2009, 2011 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
# Argument 2 is the expected value of the variable
# Argument 3 handles expected failures and the like
proc gdb-test { 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

    set gdb_name $::env(GUALITY_GDB_NAME)
    set testname "$testcase line [lindex $args 0] [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 [lindex $args 0]"
    puts $fd "run"
    puts $fd "print [lindex $args 1]"
    puts $fd "print [lindex $args 2]"
    puts $fd "quit"
    close $fd

    send_log "Spawning: $gdb_name -nx -nw -quiet -x $cmd_file ./$output_file\n"
    set res [remote_spawn target "$gdb_name -nx -nw -quiet -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" {
            unsupported "$testname"
            remote_close target
            file delete $cmd_file
            return
        }
        -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 {
                send_log "$first != $second\n"
                fail "$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
}

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