Subversion Repositories openrisc_2011-10-31

# Copyright 2004, 2007, 2008, 2009, 2010 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 this program.  If not, see .

# Author: Paul N. Hilfinger (Hilfinger@gnat.com)

# Test that GDB cleans up properly after errors that result when a

# breakpoint is reset.

if $tracelevel then {

        strace $tracelevel

}

set prms_id 0

set bug_id 0

# IDT/SIM apparently doesn't have enough file descriptors to allow the

# problem checked by this test to occur.

if [istarget "mips-idt-*"] {

    return 0;

}

set testfile "chng-syms"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var1}] != "" } {

    untested chng-syms.exp

    return -1

}

set oldtimeout $timeout

set timeout 10

verbose "Timeout is now 10 seconds" 2

proc expect_to_stop_here { ident } {

    global gdb_prompt

    global decimal

    # the "at foo.c:36" output we get with -g.

    # the "in func" output we get without -g.

    gdb_expect {

        -re "Breakpoint \[0-9\]*, stop_here .*$gdb_prompt $" {

            return 1

        }

        -re "$gdb_prompt $" {

            fail "running to stop_here $ident"

            return 0

        }

        timeout {

            fail "running to stop_here $ident (timeout)"

            return 0

        }

    }

    return 1

}

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

gdb_test "break stop_here if (var1 == 42)" \

    "Breakpoint.*at.* file .*$srcfile, line.*" \

    "setting conditional breakpoint on function"

gdb_run_cmd

expect_to_stop_here "first time"

gdb_continue_to_end "breakpoint first time through"

# Now we recompile the executable, but without a variable named "var1", first

# waiting to insure that even on fast machines, the file modification times

# are distinct. This will force GDB to reload the file on the

# next "run" command, causing an error when GDB tries to tries to reset

# the breakpoint.

sleep 2

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } {

# Complication: Since GDB generally holds an open file descriptor on the

# executable at this point, there are some systems in which the

# re-compilation will fail. In such cases, we'll consider the test

# (vacuously) passed providing that re-running it succeeds as before.

    gdb_run_cmd

    expect_to_stop_here "after re-compile fails"

    gdb_continue_to_end "after re-compile fails"

} else {

    gdb_run_cmd

    gdb_expect {

        -re ".*Program exited normally.*$gdb_prompt $" {

            pass "running with invalidated bpt condition after executable changes"

        }

        -re ".*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {

            pass "running with invalidated bpt condition after executable changes"

        }

        -re "$gdb_prompt $" {

            fail "running with invalidated bpt condition after executable changes"

        }

        timeout {

            fail "(timeout) running with invalidated bpt condition after executable changes"

        }

    }

}

set timeout $oldtimeout

verbose "Timeout is now $timeout seconds" 2

return 0