# Copyright 2002, 2004, 2007, 2008, 2009, 2010, 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 this program.  If not, see <http://www.gnu.org/licenses/>.

# This file was written by Andrew Cagney (cagney at redhat dot com),
# derived from xfullpath.exp (written by Joel Brobecker), derived from
# selftest.exp (written by Rob Savoye).

if $tracelevel then {
    strace $tracelevel
}


# are we on a target board
if { [is_remote target] || ![isnative] } then {
    return
}

proc setup_test { executable } {
    global gdb_prompt
    global timeout

    # load yourself into the debugger
    # This can take a relatively long time, particularly for testing where
    # the executable is being accessed over a network, or where gdb does not
    # support partial symbols for a particular target and has to load the
    # entire symbol table.  Set the timeout to 10 minutes, which should be
    # adequate for most environments (it *has* timed out with 5 min on a
    # SPARCstation SLC under moderate load, so this isn't unreasonable).
    # After gdb is started, set the timeout to 30 seconds for the duration
    # of this test, and then back to the original value.

    set oldtimeout $timeout
    set timeout 600
    verbose "Timeout is now $timeout seconds" 2

    global gdb_file_cmd_debug_info
    set gdb_file_cmd_debug_info "unset"

    set result [gdb_load $executable]
    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    if { $result != 0 } then {
	return -1
    }

    if { $gdb_file_cmd_debug_info != "debug" } then {
	untested "No debug information, skipping testcase."
	return -1
    }

    # Set a breakpoint at main
    gdb_test "break captured_command_loop" \
            "Breakpoint.*at.* file.*, line.*" \
            "breakpoint in captured_command_loop"

    # run yourself
    # It may take a very long time for the inferior gdb to start (lynx),
    # so we bump it back up for the duration of this command.
    set timeout 600

    set description "run until breakpoint at captured_command_loop"
    gdb_test_multiple "run -nw" "$description" {
        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_command_loop .data.* at .*main.c:.*$gdb_prompt $" {
            pass "$description"
        }
        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_command_loop .data.*$gdb_prompt $" {
            xfail "$description (line numbers scrambled?)"
        }
        -re "vfork: No more processes.*$gdb_prompt $" {
            fail "$description (out of virtual memory)"
            set timeout $oldtimeout
            verbose "Timeout is now $timeout seconds" 2
            return -1
        }
        -re ".*$gdb_prompt $" {
            fail "$description"
            set timeout $oldtimeout
            verbose "Timeout is now $timeout seconds" 2
            return -1
        }
    }

    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    return 0
}

proc test_initial_complaints { } {

    global gdb_prompt

    # Unsupress complaints
    gdb_test "set stop_whining = 2"

    # Prime the system
    gdb_test "call complaint (&symfile_complaints, \"Register a complaint\")" \
	    "During symbol reading, Register a complaint."

    # Check that the complaint was inserted and where
    gdb_test "print symfile_complaints->root->fmt" \
	    ".\[0-9\]+ =.*\"Register a complaint\""

    # Re-issue the first message #1
    gdb_test "call complaint (&symfile_complaints, symfile_complaints->root->fmt)" \
	    "During symbol reading, Register a complaint."

    # Check that there is only one thing in the list
    gdb_test "print symfile_complaints->root->next == &complaint_sentinel" \
	    ".\[0-9\]+ = 1" "list has one entry"

    # Add a second complaint, expect it
    gdb_test "call complaint (&symfile_complaints, \"Testing! Testing! Testing!\")" \
	    "During symbol reading, Testing. Testing. Testing.."

    return 0
}

proc test_serial_complaints { } {

    global gdb_prompt

    gdb_test_exact "call clear_complaints (&symfile_complaints, 1, 0)" "" "serial start"

    # Prime the system
    gdb_test_multiple "call complaint (&symfile_complaints, \"serial line  1\")" "serial line 1" {
	-re "During symbol reading...serial line  1...$gdb_prompt $" {
	    pass "serial line 1"
	}
    }

    # Add a second complaint, expect it
    gdb_test_multiple "call complaint (&symfile_complaints, \"serial line 2\")" "serial line 2" {
	-re "serial line 2...$gdb_prompt " {
	    pass "serial line 2"
	}
    }

    gdb_test_multiple "call clear_complaints (&symfile_complaints, 1, 0)" "serial end" {
	-re "\r\n\r\n$gdb_prompt " {
	    pass "serial end"
	}
    }

    return 0
}

# For short complaints, all are the same

proc test_short_complaints { } {

    global gdb_prompt

    gdb_test_exact "call clear_complaints (&symfile_complaints, 1, 1)" "" "short start"

    # Prime the system
    gdb_test_multiple "call complaint (&symfile_complaints, \"short line 1\")" "short line 1" {
	-re "short line 1...$gdb_prompt " {
	    pass "short line 1"
	}
    }

    # Add a second complaint, expect it
    gdb_test_multiple "call complaint (&symfile_complaints, \"short line 2\")" "short line 2" {
	-re "short line 2...$gdb_prompt " {
	    pass "short line 2"
	}
    }

    gdb_test_multiple "call clear_complaints (&symfile_complaints, 1, 0)" "short end" {
	-re "\r\n\r\n$gdb_prompt " {
	    pass "short end"
	}
    }

    return 0
}

# Check that nothing comes out when there haven't been any real
# complaints.  Note that each test is really checking the previous
# command.

proc test_empty_complaint { cmd msg } {
    global gdb_prompt
    gdb_test_multiple $cmd $msg {
	-re "\r\n\r\n$gdb_prompt $" {
	    fail $msg
	}
	"\r\n$gdb_prompt $" {
	    pass $msg
	}
    }
}

proc test_empty_complaints { } {

    test_empty_complaint "call clear_complaints(&symfile_complaints,0,0)" \
	    "empty non-verbose non-noisy clear"
    test_empty_complaint "call clear_complaints(&symfile_complaints,1,0)" \
	    "empty verbose non-noisy clear"
    test_empty_complaint "call clear_complaints(&symfile_complaints,1,1)" \
	    "empty verbose noisy clear"
    test_empty_complaint "call clear_complaints(&symfile_complaints,0,1)" \
	    "empty non-verbose noisy clear"

    return 0
}

# Find a pathname to a file that we would execute if the shell was asked
# to run $arg using the current PATH.

proc find_gdb { arg } {

    # If the arg directly specifies an existing executable file, then
    # simply use it.

    if [file executable $arg] then {
	return $arg
    }

    set result [which $arg]
    if [string match "/" [ string range $result 0 0 ]] then {
	return $result
    }

    # If everything fails, just return the unqualified pathname as default
    # and hope for best.

    return $arg
}

# Run the test with self.
# Copy the file executable file in case this OS doesn't like to edit its own
# text space.

set GDB_FULLPATH [find_gdb $GDB]

# Remove any old copy lying around.
remote_file host delete x$tool

gdb_start

set file [remote_download host $GDB_FULLPATH x$tool]

set setup_result [setup_test $file ]
if {$setup_result <0} then {
    return -1
}

test_initial_complaints
test_serial_complaints
test_short_complaints
test_empty_complaints

gdb_exit;
catch "remote_file host delete $file";