Subversion Repositories openrisc_2011-10-31

# 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 reverse stepping.

# Lots of code borrowed from "step-test.exp".

#

# Test step and next in reverse

#

if ![target_info exists gdb,can_reverse] {

    return

}

set testfile "step-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"

}

# plain vanilla step/next (no count)

gdb_test "next" ".*NEXT TEST 1.*" "next test 1"

gdb_test "step" ".*STEP TEST 1.*" "step test 1"

# step/next with count

gdb_test "next 2" ".*NEXT TEST 2.*" "next test 2"

gdb_test "step 3" ".*STEP TEST 2.*" "step test 2"

# step over call

gdb_test "step" ".*NEXT OVER THIS CALL.*" "step up to call"

gdb_test "next" ".*STEP INTO THIS CALL.*" "next over call"

# step into call

gdb_test "step" ".*ARRIVED IN CALLEE.*" "step into call"

# finish out of call

set test_message "finish out of fn call"

gdb_test_multiple "finish" "$test_message" {

    -re "FINISH TEST.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "STEP INTO THIS CALL.*$gdb_prompt $" {

        send_gdb "step\n"

        exp_continue

    }

}

# stepi over flat code (no calls)

set test_message "simple stepi"

gdb_test_multiple "stepi" "$test_message" {

    -re "STEPI TEST.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "FINISH TEST.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "NEXTI TEST.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

}

# stepi into a function call

set test_message "stepi into function call"

gdb_test_multiple "stepi" "$test_message" {

    -re "ARRIVED IN CALLEE.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "NEXTI TEST.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

    -re "RETURN FROM CALLEE.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

    -re "ENTER CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "STEPI TEST.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

}

# stepi thru return of a function call

set test_message "stepi back from function call"

gdb_test_multiple "stepi" "$test_message" {

    -re "NEXTI TEST.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "ARRIVED IN CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "RETURN FROM CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "STEPI TEST.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "ENTER CALLEE.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

}

###

###

###

# Set reverse execution direction

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

# stepi backward thru return and into a function

set stepi_location  [gdb_get_line_number "ARRIVED IN CALLEE" "$srcfile"]

set test_message "reverse stepi thru function return"

gdb_test_multiple "stepi" "$test_message" {

    -re "NEXTI TEST.*$gdb_prompt $" {

        fail "$test_message (start statement)"

    }

    -re "RETURN FROM CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "$hex\[ \t\]*$stepi_location.*ARRIVED IN CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "ARRIVED IN CALLEE.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "ENTER CALLEE.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

    -re "STEPI TEST.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

}

# stepi backward out of a function call

set stepi_location  [gdb_get_line_number "STEPI TEST" "$srcfile"]

set test_message "reverse stepi from a function call"

gdb_test_multiple "stepi" "$test_message" {

    -re "ARRIVED IN CALLEE.*$gdb_prompt $" {

        fail "$test_message (start statement)"

    }

    -re "ENTER CALLEE.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "${hex} in main .*:$stepi_location.*STEPI TEST.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "STEPI TEST.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "STEP INTO THIS CALL.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

}

# stepi backward over flat code (no calls)

set stepi_location  [gdb_get_line_number "FINISH TEST" "$srcfile"]

set test_message "simple reverse stepi"

gdb_test_multiple "stepi" "$test_message" {

    -re "STEPI TEST.*$gdb_prompt $" {

        fail "$test_message (start statement)"

    }

    -re "$hex\[ \t\]*$stepi_location.* FINISH TEST.*$gdb_prompt $" {

        send_gdb "stepi\n"

        exp_continue

    }

    -re "$stepi_location.* FINISH TEST.*$gdb_prompt $" {

        pass "$test_message"

    }

    -re "STEP INTO THIS CALL.*$gdb_prompt $" {

        fail "$test_message (too far)"

    }

}

# step backward into function (thru return)

set test_message "reverse step into fn call"

gdb_test_multiple "step" "$test_message" {

    -re "RETURN FROM CALLEE.*$gdb_prompt $" {

        send_gdb "step\n"

        exp_continue

    }

    -re "ARRIVED IN CALLEE.*$gdb_prompt $" {

        pass "$test_message"

    }

}

# step backward out of called function (thru call)

gdb_test "step" ".*STEP INTO THIS CALL.*" "reverse step out of called fn"

# next backward over call

gdb_test "next" ".*NEXT OVER THIS CALL.*" "reverse next over call"

# step/next backward with count

gdb_test "step 3" ".*REVERSE STEP TEST 1.*" "reverse step test 1"

gdb_test "next 2" ".*REVERSE NEXT TEST 1.*" "reverse next test 1"

# step/next backward without count

gdb_test "step" ".*STEP TEST 1.*" "reverse step test 2"

gdb_test "next" ".*NEXT TEST 1.*" "reverse next test 2"

# Finish test by running forward to the end.

# FIXME return to this later...

# gdb_test_no_output "set exec-dir forward" "set forward execution"

# gdb_continue_to_end "step-reverse.exp"