Subversion Repositories or1k

# Copyright (C) 1996, 1997 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 2 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, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This file was written by Fred Fish. (fnf@cygnus.com)

if $tracelevel then {

        strace $tracelevel

}

set prms_id 0

set bug_id 0

# This only works with native configurations

if ![isnative] then {

    return

}

set testfile "pthreads"

set srcfile ${testfile}.c

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

# regexp for "horizontal" text (i.e. doesn't include newline or

# carriage return)

set horiz "\[^\n\r\]*"

set built_binfile 0

if [istarget "*-*-linux"] then {

    set target_cflags "-D_MIT_POSIX_THREADS"

} else {

    set target_cflags ""

}

set why_msg "unrecognized error"

foreach lib {-lpthreads -lpthread -lthread} {

    set options "debug"

    lappend options "incdir=${objdir}/${subdir}"

    lappend options "libs=$lib"

    set ccout [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options]

    switch -regexp -- $ccout {

        ".*no posix threads support.*" {

            set why_msg "missing threads include file"

            break

        }

        ".*cannot open -lpthread.*" {

            set why_msg "missing runtime threads library"

        }

        ".*Can't find library for -lpthread.*" {

            set why_msg "missing runtime threads library"

        }

        {^$} {

            pass "successfully compiled posix threads test case"

            set built_binfile 1

            break

        }

    }

}

if {$built_binfile == "0"} {

    unsupported "Couldn't compile ${srcfile}, ${why_msg}"

    return -1

}

# Now we can proceed with the real testing.

# Start with a fresh gdb.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

gdb_test "set print sevenbit-strings" ""

#gdb_test "set print address off" ""

gdb_test "set width 0" ""

# We'll need this when we send_gdb a ^C to GDB.  Need to do it before we

# run the program and gdb starts saving and restoring tty states.

# On Ultrix, we don't need it and it is really slow (because shell_escape

# doesn't use vfork).

if ![istarget "*-*-ultrix*"] then {

    gdb_test "shell stty intr '^C'" ""

}

proc all_threads_running {} {

    global gdb_prompt

    global srcfile

    # Reset all the counters to zero.

    gdb_test "set var common_routine::hits=0" ""

    gdb_test "set var common_routine::from_thread1=0" ""

    gdb_test "set var common_routine::from_thread2=0" ""

    gdb_test "set var common_routine::from_main=0" ""

    gdb_test "set var common_routine::full_coverage=0" ""

    # Disable all breakpoints.

    gdb_test "disable" ""

    # Set up a breakpoint that will cause us to stop when we have

    # been called 15 times.  This should be plenty of time to allow

    # every thread to run at least once, since each thread sleeps for

    # one second between calls to common_routine.

    gdb_test "tbreak common_routine if hits >= 15" ""

    # Start all the threads running again and wait for the inferior

    # to stop.  Since no other breakpoints are set at this time

    # we should stop only when we have been previously called 15 times.

    send_gdb "continue\n"

    gdb_expect {

        -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}

        default {

            fail "continue until common routine run 15 times"

            return 0

        }

        timeout {

            fail "continue until common routine run 15 times (timeout)"

            return 0

        }

    }

    # Check that we stopped when we actually expected to stop, by

    # verifying that there have been 15 previous hits.

    # NOTE: Because of synchronization behavior, it is possible for

    # more than one thread to increment "hits" between one breakpoint

    # trap and the next.  So stopping after 16 or 17 hits should be

    # considered acceptable.

    send_gdb "p common_routine::hits\n"

    gdb_expect {

        -re ".*= 15\r\n$gdb_prompt $" {

            pass "stopped before calling common_routine 15 times"

        }

        -re ".*= 16\r\n$gdb_prompt $" {

            pass "stopped before calling common_routine 15 times (16 times)"

        }

        -re ".*= 17\r\n$gdb_prompt $" {

            pass "stopped before calling common_routine 15 times (17 times)"

        }

        default {

            fail "stopped before calling common_routine 15 times"

            return 0

        }

        -re ".*$gdb_prompt $" {

            fail "stopped before calling common_routine 15 times"

            return 0

        }

        timeout {

            fail "stopped before calling common_routine 15 times (timeout)"

            return 0

        }

    }

    # Also check that all of the threads have run, which will only be true

    # if the full_coverage variable is set.

    send_gdb "p common_routine::full_coverage\n"

    gdb_expect {

        -re ".* = 1.*$gdb_prompt $" {}

        -re ".* = 0.*$gdb_prompt $" {

            fail "some threads didn't run"

            return 0

        }

        default {

            fail "some threads didn't run"

            return 0

        }

        timeout {

            fail "some threads didn't run (timeout)"

            return 0

        }

    }

    # Looks fine, return success.

    return 1

}

proc test_startup {} {

    global srcdir srcfile gdb_prompt expect_out

    global horiz

    global main_id thread1_id thread2_id

    # We should be able to do an info threads before starting any others.

    send_gdb "info threads\n"

    gdb_expect {

        -re ".*Thread.*main.*$gdb_prompt $" {

            pass "info threads"

        }

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

            unsupported "gdb does not support pthreads for this machine"

            return 0

        }

    }

    # Extract the thread id number of main thread from "info threads" output.

    send_gdb "info threads\n"

    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"

    set main_id $expect_out(1,string)

    # Check that we can continue and create the first thread.

    gdb_test "break thread1" "Breakpoint .* file .*$srcdir.*"

    gdb_test "continue" \

            "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \

            "Continue to creation of first thread"

    gdb_test "disable" ""

    # Extract the thread id number of thread 1 from "info threads" output.

    send_gdb "info threads\n"

    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"

    set thread1_id $expect_out(1,string)

    # Check that we can continue and create the second thread,

    # ignoring the first thread for the moment.

    gdb_test "break thread2" "Breakpoint .* file .*$srcdir.*"

    gdb_test "continue" \

            "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \

            "Continue to creation of second thread"

    # Extract the thread id number of thread 2 from "info threads" output.

    send_gdb "info threads\n"

    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"

    set thread2_id $expect_out(1,string)

    return 1

}

proc check_control_c {} {

    global gdb_prompt

    # Verify that all threads are running.

    if [all_threads_running] then {

        pass "All threads running after startup"

    }

    # Send a continue followed by ^C to the process to stop it.

    send_gdb "continue\n"

    set description "Stopped with a ^C"

    after 1000 [send_gdb "\003"]

    gdb_expect {

        -re "Program received signal SIGINT.*$gdb_prompt $" {

            pass $description

        }

        -re "Quit.*$gdb_prompt $" {

            pass $description

        }

        timeout {

            fail "$description (timeout)"

            return 1;

        }

    }

    gdb_test "bt" ""

    # Verify that all threads can be run again after a ^C stop.

    if [all_threads_running] then {

        pass "All threads running after continuing from ^C stop"

    }

    return 0;

}

proc check_backtraces {} {

    global gdb_prompt main_id thread1_id thread2_id

    # Check that the "thread apply N backtrace" command works

    gdb_test "thread apply $main_id backtrace" \

            ".* in main \\(argc=.*, argv=.*\\).*" \

            "check backtrace from main thread"

    gdb_test "thread apply $thread1_id backtrace" \

            ".* in thread1 \\(arg=0xfeedface\\).*" \

            "check backtrace from thread 1"

    gdb_test "thread apply $thread2_id backtrace" \

            ".* in thread2 \\(arg=0xdeadbeef\\).*" \

            "check backtrace from thread 2"

    # Check that we can apply the backtrace command to all

    # three threads with a single gdb command

    gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \

            ".* in main .* in thread1 .* in thread2.*" \

            "apply backtrace command to all three threads"

    # Check that we can do thread specific backtraces

    # This also tests that we can do thread specific breakpoints.

    gdb_test "break common_routine thread $thread2_id" \

            "Breakpoint .* at 0x.* file .* line .*" \

            "set break at common_routine in thread 2"

    send_gdb "continue\n"

    gdb_expect {

        -re "Breakpoint .* common_routine \\(arg=2\\).*" {

            pass "continue to bkpt at common_routine in thread 2"

            send_gdb "backtrace\n"

            gdb_expect {

                -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {

                    pass "backtrace from thread 2 bkpt in common_routine"

                }

                default {

                    fail "backtrace from thread 2 bkpt in common_routine"

                }

                timeout {

                    fail "backtrace from thread 2 bkpt in common_routine (timeout)"

                }

            }

        }

        -re "Breakpoint .* common_routine \\(arg=0\\).*" {

            fail "continue to bkpt at common_routine in thread 2 (arg=0)"

        }

        -re "Breakpoint .* common_routine \\(arg=1\\).*" {

            fail "continue to bkpt at common_routine in thread 2 (arg=1)"

        }

        -re ".*$gdb_prompt" {

            fail "continue to bkpt at common_routine in thread 2"

        }

        default {

            fail "continue to bkpt at common_routine in thread 2 (default)"

        }

        timeout {

            fail "continue to bkpt at common_routine in thread 2 (timeout)"

        }

    }

}

setup_xfail "alpha-*-osf*"

if [runto_main] then {

    clear_xfail "alpha-*-osf*"

    if [test_startup] then {

        if [check_control_c] then {

            warning "Could not stop child with ^C; skipping rest of tests.\n"

            return;

        }

        check_backtraces

    }

}

clear_xfail "alpha-*-osf*"