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# Copyright 1998, 1999, 2001, 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 .  */

if $tracelevel then {

        strace $tracelevel

}

set testfile1 "average"

set testfile2 "sum"

set testfile "dbx-test"

set binfile1 ${objdir}/${subdir}/${testfile1}

set binfile2 ${objdir}/${subdir}/${testfile2}

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

if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {

     untested dbx.exp

     return -1

}

if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {

     untested dbx.exp

     return -1

}

if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {

     untested dbx.exp

     return -1

}

#

# start gdb -- start gdb running, default procedure

#

proc dbx_gdb_start { } {

    global verbose

    global GDB

    global INTERNAL_GDBFLAGS GDBFLAGS

    global prompt

    global spawn_id

    global timeout

    verbose "Spawning $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"

    if { [which $GDB] == 0 } then {

        perror "$GDB does not exist."

        exit 1

    }

    set oldtimeout $timeout

    set timeout [expr "$timeout + 60"]

    eval "spawn $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"

    gdb_expect {

        -re ".*\r\n$gdb_prompt $" {

            verbose "GDB initialized."

        }

        -re "$prompt $" {

            perror "GDB never initialized."

            return -1

        }

        timeout         {

            perror "(timeout) GDB never initialized."

            return -1

        }

    }

    set timeout $oldtimeout

    # force the height to "unlimited", so no pagers get used

    send_gdb "set height 0\n"

    gdb_expect {

        -re ".*$prompt $" {

            verbose "Setting height to 0." 2

        }

        timeout {

            warning "Couldn't set the height to 0."

        }

    }

    # force the width to "unlimited", so no wraparound occurs

    send_gdb "set width 0\n"

    gdb_expect {

        -re ".*$prompt $" {

            verbose "Setting width to 0." 2

        }

        timeout {

            warning "Couldn't set the width to 0."

        }

    }

}

proc dbx_reinitialize_dir { subdir } {

    global gdb_prompt

   send_gdb "use\n"

    gdb_expect {

        -re "Reinitialize source path to empty.*y or n. " {

            send_gdb "y\n"

            gdb_expect {

                -re "Source directories searched.*$gdb_prompt $" {

                    send_gdb "use $subdir\n"

                    gdb_expect {

                        -re "Source directories searched.*$gdb_prompt $" {

                            verbose "Dir set to $subdir"

                        }

                        -re ".*$gdb_prompt $" {

                            perror "Dir \"$subdir\" failed."

                        }

                    }

                }

                -re ".*$gdb_prompt $" {

                    perror "Dir \"$subdir\" failed."

                }

            }

        }

        -re ".*$gdb_prompt $" {

            perror "Dir \"$subdir\" failed."

        }

    }

}

# In "testsuite/config/unix-gdb.exp", the routine "gdb_load"

# is defined as "gdb_file_cmd".  The binding of "gdb_file_cmd"

# is done at invocation time.  Before this file is processed,

# it binds to the definition in "testsuite/lib/gdb.exp"; after

# this file is processed, it binds to this definition.

# TCL lets us overrides a previous routine definition without a

# warning (isn't that special?).

#

# This means that tests before use "file" to load a target, and

# tests afterwards use the pair "symbol-file" "exec-file".

#

# I'm leaving it as it is for now because at the moment it

# is the only test we have of the use of the combination of

# "symbol-file" and "exec-file" to load a debugging target (the

# other definition uses "file".

#

# Symbol-file and exec-file should be tested explicitly, not

# as a side effect of running a particular test (in this case,

# "testsuite/gdb.compat/dbx.exp").

#

# CM: Renamed the procedure so it does not override the orginal file name.

#     Having the test suite change behavior depending on the tests run makes

#     it extremely difficult to reproduce errors. I've also added a

#     "dbx_gdb_load" procedure.  This and only this test will call these

#     procedures now. I also added an "expect" to the "send exec-file" line.

#     The "expect" waits for a prompt to appear. Otherwise, if the tests run

#     too quickly, the caller could send another command before the prompt

#     of this command returns, causing the test to get out of sync and fail

#     seemingly randomly or only on a loaded system.

#

# Problem is, though, that the testsuite config files can override the definition of

# gdb_load (without notice, as was mentioned above). Unfortunately, the gdb_load proc

# that was copied into this test was a copy of the unix native version.

#

# The real problem that we're attempting to solve is how to load an exec and symbol

# file into gdb for a dbx session. So why not just override gdb_file_cmd with the

# right sequence of events, allowing gdb_load to do its normal thing? This way

# remotes and simulators will work, too.

#

# [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.

set old_gdb_file_cmd_args [info args gdb_file_cmd]

set old_gdb_file_cmd_body [info body gdb_file_cmd]

proc gdb_file_cmd {arg} {

    global verbose

    global loadpath

    global loadfile

    global GDB

    global gdb_prompt

    global spawn_id

    upvar timeout timeout

    global last_loaded_file

    set last_loaded_file $arg

    if [is_remote host] {

        set arg [remote_download host $arg];

        if { $arg == "" } {

            error "download failed"

            return -1;

        }

    }

    send_gdb "symbol-file $arg\n"

    gdb_expect {

        -re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {

            verbose "\t\tLoaded $arg into the $GDB"

            send_gdb "exec-file $arg\n"

            gdb_expect {

                -re ".*$gdb_prompt $" {

                    verbose "\t\tLoaded $arg with new symbol table into $GDB"

                    return 0

                }

                timeout {

                    perror "(timeout) Couldn't load $arg"

                    return -1

                }

            }

            return 0

        }

        -re "Reading symbols from.*done.*$gdb_prompt $" {

            verbose "\t\tLoaded $arg into the $GDB"

            send_gdb "exec-file $arg\n"

            gdb_expect {

                -re "A program is being debugged already.*Kill it.*y or n. $" {

                    send_gdb "y\n"

                        verbose "\t\tKilling previous program being debugged"

                    exp_continue

                }

                -re ".*$gdb_prompt $" {

                    verbose "\t\tLoaded $arg with new symbol table into $GDB"

                    return 0

                }

                timeout {

                    perror "(timeout) Couldn't load $arg"

                    return -1

                }

            }

            return 0

        }

        -re "has no symbol-table.*$gdb_prompt $" {

            perror "$arg wasn't compiled with \"-g\""

            return -1

        }

        -re "Load new symbol table from \".*\".*y or n. $" {

            send_gdb "y\n"

            exp_continue

        }

        -re ".*No such file or directory.*$gdb_prompt $" {

            perror "($arg) No such file or directory\n"

            return -1

        }

        -re "$gdb_prompt $" {

            perror "couldn't load $arg into $GDB."

            return -1

            }

        timeout {

            perror "couldn't load $arg into $GDB (timed out)."

            return -1

        }

        eof {

            # This is an attempt to detect a core dump, but seems not to

            # work.  Perhaps we need to match .* followed by eof, in which

            # expect does not seem to have a way to do that.

            perror "couldn't load $arg into $GDB (end of file)."

            return -1

        }

    }

}

#

#test_breakpoints

#

proc test_breakpoints { } {

    gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."

    gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"

    gdb_test "stop at average.c:43" "Breakpoint.*at.*: file.*average\.c, line 43.*"

    gdb_test "stop in average.c:43" "Usage: stop in "

    gdb_test "stop at main" "Usage: stop at "

}

#

#test_assign

#

proc test_assign { } {

    global decimal

    global gdb_prompt

    gdb_run_cmd

    gdb_expect 30 {

        -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }

        -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }

        -re "$gdb_prompt $" { fail "running to main" }

        timeout { fail "running to main (timeout)" }

    }

    send_gdb "assign first=1\n"

    gdb_expect {

      -re "No symbol \"first\" in current context.*$" { fail "assign first" }

      -re "$gdb_prompt $" { pass "assign first" }

      timeout { fail "assign first (timeout)" }

    }

    gdb_test "print first" ".1 = 1"

}

#

#test_whereis

#

proc test_whereis { } {

    gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"

}

#

#test_func

#

proc test_func { } {

    gdb_test "cont" "" "cont 1"

    gdb_test "step" ""

    # This always fails, but it's not clear why. -sts 1999-08-17

    setup_xfail "*-*-*"

    gdb_test "func sum" "'sum' not within current stack frame\."

    gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."

    gdb_test "cont" "" "cont 2"

    # This always fails, but it's not clear why. -sts 1999-08-17

    setup_xfail "*-*-*"

    gdb_test "func print_average" ".*in print_average.*\\(list=.*, low=0, high=6\\).*at.*average\.c:24\r\n24\[ \t\]+total = sum\\(list, low, high\\);"

}

# Start with a fresh gdb.

gdb_exit

global GDBFLAGS

set saved_gdbflags $GDBFLAGS

set GDBFLAGS "$GDBFLAGS --dbx"

gdb_start

dbx_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

test_breakpoints

test_assign

test_whereis

gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"

test_func

#exit and cleanup

gdb_exit

set GDBFLAGS $saved_gdbflags

eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}

return 0