Subversion Repositories openrisc

#   Copyright 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 .

# This file is part of the GDB testsuite.  It tests stepping over

# consecutive instructions in reverse.

if ![target_info exists gdb,can_reverse] {

    return

}

set testfile "consecutive-reverse"

set srcfile ${testfile}.c

if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {

    return -1

}

runto main

if [target_info exists gdb,use_precord] {

    # Activate process record/replay

    gdb_test_no_output "record" "Turn on process record"

}

gdb_breakpoint foo

gdb_test "continue" "Breakpoint $decimal, foo .*" \

        "continue to breakpoint in foo"

set foo1_addr 0

set foo2_addr 0

set stop_addr 0

gdb_test_multiple "x /2i \$pc" "get breakpoint address for foo" {

    global hex

    global foo1_addr

    global foo2_addr

    global gdb_prompt

    -re "=> ($hex).*\[\r\n\]+   ($hex).*$gdb_prompt $" {

        set foo1_addr $expect_out(1,string)

        set foo2_addr $expect_out(2,string)

        pass "get breakpoint address for foo"

    }

}

gdb_test "break \*$foo2_addr" "Breakpoint $decimal at $foo2_addr: file .*" \

        "set bp, 2nd instr"

set testmsg "stopped at bp, 2nd instr"

gdb_test_multiple "step" $testmsg {

    -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {

        set stop_addr $expect_out(1,string)

        if [eval expr "$foo2_addr == $stop_addr"] then {

            pass "stopped at bp, 2nd instr"

        } else {

            fail "stopped at bp, 2nd instr (wrong address)"

        }

    }

}

###

###

###

# Set reverse execution direction

gdb_test_no_output "set exec-dir reverse" "set reverse execution"

# Now step backward and hope to hit the first breakpoint.

set test_msg "stopped at bp in reverse, 1st instr"

gdb_test_multiple "step" "$test_msg" {

    -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {

        set stop_addr $expect_out(1,string)

        if [eval expr "$foo1_addr == $stop_addr"] then {

            pass "$test_msg"

        } else {

            fail "$test_msg (wrong address)"

        }

    }

    -re "Breakpoint $decimal, foo.*$gdb_prompt $" {

        gdb_test "print \$pc == $foo1_addr" \

            "$decimal = 1" \

            "$test_msg"

    }

}