# attach.exp -- Expect script to test attaching to a threaded pgm
# Copyright (C) 1992 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

# use this to debug:
#
#log_user 1

# Temporarily comment out - hanging
#return 0

if $tracelevel then {
    strace $tracelevel
}

# Thread stuff is _slow_; prepare for long waits.
#
# Further, this test has some "null" lines designed
# to consume output from gdb that was too late to be
# matched (sequence is "gdb_test" sends; timeout and
# on to next send; result finally comes in; mismatch).
#
# The null command is 'gdb_test "p \$pc" ".*" ""'
# NOTE: this command undoes any up/down stuff!
#
proc pre_timeout { how_long } {
    global timeout

    set timeout [expr "$timeout + $how_long"]
}

proc post_timeout {} {
    global timeout
    global oldtimeout

    set timeout $oldtimeout
    gdb_test "p \$pc" ".*" ""
}

if { ![istarget "hppa*-*-hpux10.30"] && ![istarget "hppa*-*-hpux11.*"] } {
    verbose "HPUX thread test ignored for non-hppa or pre-HP/UX-10.30 targets."
    return 0
}

# We used to wait 5 seconds , but tiamat is faster than
# hydra...or is it that the OS allocates time differently(?).
#
set delay 5
if { ![istarget "hppa*-*-hpux11.*"] } {
    set delay 45
}

set testfile quicksort
set srcfile ${srcdir}/${subdir}/${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if [get_compiler_info ${binfile}] {
    return -1
}

set oldtimeout $timeout
#set timeout [expr "$timeout + 100"]
set oldverbose $verbose
#set verbose 40

# To build the executable we need to link against the thread library.
#
#     cc -Ae -g -o quicksort -lpthread quicksort.c
#
#remote_exec build "${srcfile} -Ae -g -lpthread -o ${binfile}"
#gdb_compile "${srcfile} -Ae -g -lpthread -o ${binfile}"

if {$gcc_compiled == 0} {
    set additional_flags "additional_flags=-Ae"
} else {
    set additional_flags ""
}

if  { [gdb_compile "${srcdir}/${subdir}/${testfile}.c" "${binfile}.o" object [list debug $additional_flags]] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
remote_exec build "ld /usr/ccs/lib/crt0.o ${binfile}.o -lcl -lpthread  -lc /opt/langtools/lib/end.o -o ${binfile}"


gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

# Start the application running and get its pid.
# Then we wait for it to get started and attach.
# 
set testpid [eval exec $binfile 1 &]
exec sleep $delay

# Now attach to the file.
#
pre_timeout 100
gdb_test "attach $testpid" ".*Attaching to process.*Reading symbols from.*done.*" "attach to target"
post_timeout

# Wait for things to quiesce.
#
exec sleep 0

send_gdb "bt\n" 

set do_return 0
set do_go_to_118 0
pre_timeout 400
gdb_expect {
    -re ".*sleep.*work_init.*main.*$gdb_prompt $"   { 
        pass "at expected location" 
    }
    -re ".*drand48.*$gdb_prompt $" {
        set do_go_to_118 1
    }
    -re ".*pthread_mutex_lock.*$gdb_prompt $" {
        set do_go_to_118 1
    }
    -re ".*pthread_mutex_unlock.*$gdb_prompt $" {
        set do_go_to_118 1
    }
    -re ".*main.*$gdb_prompt $" {
        set do_go_to_118 1
    }
    -re ".*No stack.*$gdb_prompt $" {
        fail "Failed attach, change wait amount down, rest would fail"
        set do_return 1
    }
    -re ".*$gdb_prompt $" {
        # Who knows?
        #
        set do_go_to_118 1
    }
    timeout { 
        set do_return 1
        fail "timeout on bt, avoiding rest of test" 
    }
}
post_timeout

# Too late; just give up.
#
if { $do_return } {
    set timeout $oldtimeout
    set verbose $oldverbose
    return 0
}

# Maybe too early--set a temp break and continue.
# We have to set this on both paths, so that we can
# know what numbers breakpoints will be.
#
gdb_test "tb 118" ".*Breakpoint 1.*118.*" ""
if { $do_go_to_118 } {
    pre_timeout 100
    send_gdb "c\n"
    gdb_expect {
        -re ".*at.*118.*118.*$gdb_prompt $" {
            # Ok, just keep going
        }
        -re ".*Program exited.*$gdb_prompt $" {
            fail "Attached too late, set wait amount downwards"
            set timeout $oldtimeout
            set verbose $oldverbose
            return 0
        }
        -re ".*$gdb_prompt $" {
            fail "Unexpected result on attach" 
            set timeout $oldtimeout
            set verbose $oldverbose
            return 0
        }
        timeout { 
            fail "timeout on continue " 
        }
    }
    post_timeout
}

# Look at the threads.
#
pre_timeout 100
gdb_test "info thread" ".*7.*6.*5.*4.*3.*2.*\\\* 1.*thread.*" "first info thread"
post_timeout

# We expect to be inside the "sleep" call, so check that.
#
if { [expr "!$do_go_to_118"] } {
    gdb_test "up" ".*\#1.*nanosleep.*" "up 1" 
    gdb_test "up" ".*\#2.*sleep.*"     "up 2" 
    pre_timeout 100
    gdb_test "up" ".*\#3.*work_init.*$testfile.*c:118.*sleep.*" "up 3" 
    post_timeout
} else {
    send_user "Skipped three tests\n"
}

# Get out of that call.
#
gdb_test "b 120" ".*Breakpoint 2.*120.*" "set bp"
pre_timeout 100
gdb_test "c"     ".*Breakpoint 2.*at.*120.*" "hit bp"
post_timeout

# Look at the threads.
#
pre_timeout 100
gdb_test "info thread" ".*7.*6.*5.*4.*3.*2.*1.*thread.*$testfile.*c*120.*" "2nd info thread"
post_timeout

# Do some more stuff, to make sure we can
#
gdb_test "thread 3" ".*Switching to.*thread.*ksleep.*" "switch thread"

gdb_test "up" ".*_lwp_cond_timedwait.*"   "up 5"
gdb_test "up" ".*pthread_cond_wait.*"     "up 6"
gdb_test "up" ".*\#3.*worker.*144.*"      "up 7"
gdb_test "up" ".*__pthread_exit.*"        "up 8"
gdb_test "up" ".*Initial.*cannot go up.*" "found thread base"

gdb_test "b 145 thr 3" ".*Breakpoint 3.*145.*"             "thread-specific bp"
gdb_test "i b"         ".*2.*breakpoint.*at.*120.*3.*breakpoint.*at.*145 thread 3.*" "show thread-specific bp"
gdb_test "del 2" ".*" ""

gdb_test "c" ".*Breakpoint 3.*145.*" "hit thread-specific bp"
gdb_test "i th" ".*\\\* 3.*145.*" "at correct thread"

pre_timeout 100
gdb_test "n" ".*146.*" "next from thread-specific bp"
post_timeout

gdb_test "d 3" ".*" ""
gdb_test "c"   ".*Program exited normally\..*" "run to finish"

# Done!
#
gdb_exit

set timeout $oldtimeout
set verbose $oldverbose

# execute_anywhere "rm -f ${binfile}"
#
return 0