# thread_local_stg.exp -- Expect script to test thread-local storage
# 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

# 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 {} {
    global timeout

    set timeout [expr "$timeout + 100"]
}

proc post_timeout {} {
    global timeout
    global oldtimeout

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

if $tracelevel then {
    strace $tracelevel
}

if { [skip_hp_tests] } then { continue }

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
}

set testfile start-stop
set srcfile ${srcdir}/${subdir}/${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

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

# To build the executable we need to link against the thread library.
#
#     cc -Ae -g -o start_stop -lpthread start_stop.c
#
#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

gdb_load ${binfile}
if ![runto_main] then {
   fail "Can't run to main"
   return 0
}

set oldtimeout $timeout
#set timeout [expr "$timeout + 200"]
set oldverbose $verbose
#set verbose 40

gdb_test "b do_pass" ".*"  "set do_pass bp"
gdb_test "c" ".*do_pass.*" "run to do_pass"
gdb_test "cle" ".*" ""

# Set a breakpoint at the "spin" routine and
# collect the thread local's value.  
#
gdb_test "b 67" ".*Breakpoint 3.*67.*"   "Set bp"

# Can't use "gdb_test", as it uses "$gdb_prompt $" in
# testing the result.  Our new prompt is ">", with
# no trailing space, so we can't do this just by
# changing "prompt". 
#
# Anyway, I couldn't get expect to see the ">" prompt,
# during the command addition, so I just punted.
# _You_ are welcome to try, if you want!
#
send_gdb "commands 3\n"
gdb_expect {
    -re "(.*Type commands.*\"end\"\.\r\n\>)" {
        pass "start commands"
    }
    -re ".*$gdb_prompt $" {
        fail "start commands"
    }
}

# Assume we're in commands-input mode.
#
send_gdb "silent\n"
send_gdb "set val_debugger_saw\[me\] = a_thread_local\n"
send_gdb "continue\n"
send_gdb "end\n"

gdb_expect {
    -re ".*set.*cont.*$gdb_prompt $" {
        pass "add commands"
    }
    -re ".*$gdb_prompt $" {
        fail "add commands"
    }
}

# Check out of paranoia.
#
send_gdb "info break 3\n"
gdb_expect {
    -re ".*breakpoint.*set val_debugger.*continue.*$gdb_prompt $" {
        pass "Commands added"
    }
    -re ".*$gdb_prompt $" {
        fail "Commands not added."
    }
}

# Set a bp to inspect the results
#
gdb_test "b 134" ".*Breakpoint 4.*" ""

# We now expect to run through a whole pass, seeing 
# specific results as noted below (actual gotten by
# running application with debugging print statements
# turned on.
#
# Since this'll run for while, set a generous timeout.
#
set timeout [expr "$timeout + 30"]
send_gdb "c\n"
gdb_expect {
    -re ".*Program exited normally.*$gdb_prompt $" {
        fail "program runaway"
    }
    -re ".*Pass 0 done.*Pass 1 done.*$gdb_prompt $" {
        fail "program runaway 2"
    }
    -re ".*Pass 0 done.*Breakpoint 4.*134.*$gdb_prompt $" {
        pass "get to end of first pass"
    }
    -re ".*$gdb_prompt $" {
        fail "No progress?"
    }
    timeout { fail "timeout" }
}

gdb_test "p val_debugger_saw" ".*0, 1, 3.*"   "first pass"

send_gdb "i th\n" 
gdb_expect {
    -re ".* 1.*system thread.* 2.*system thread.*$gdb_prompt $" {
        fail "Too many threads left"
    }
    -re ".*\\\* 1 system thread.*$gdb_prompt $" {
        pass "Expect only base thread"
    }
    -re ".*No stack.*$gdb_prompt $" {
        fail "runaway"
    }
    -re ".*$gdb_prompt $" {
        fail "Hunh?"
    }
    timeout { fail "timeout" }
}

gdb_test "i b"  ".*4.*breakpoint.*134.*hit.*1 time.*" "Expect 134 bp to exist"

gdb_test "c" ".*Breakpoint 4.*134.*" "get to end of second pass"
gdb_test "p val_debugger_saw" ".*6, 10, 15.*" "second pass"

gdb_test "c" ".*Breakpoint 4.*134.*" "get to end of third pass"
gdb_test "p val_debugger_saw" ".*21, 28, 36.*" "third pass"

gdb_test "info bre 3" ".*already hit 9 times.*" "count of silent bp hits"

# Start over and do some "info address" stuff
#
send_gdb "d\n"
gdb_expect {
   -re ".*Delete all breakpoints.*$" {
       send_gdb "y\n"
       gdb_expect {
           -re ".*$gdb_prompt $" {
               pass "del bps"
           }
       }
   }
   -re ".*$gdb_prompt $" { fail "no question" }
}

gdb_test "b spin" ".*Breakpoint 5.*" ""

send_gdb "r\n"
gdb_expect {
   -re ".*Start it from the beginning.*$" {
       send_gdb "y\n"
       gdb_expect {
           -re ".*$gdb_prompt $" { pass "restart" }
       }
   }
   -re ".*Starting program.*$gdb_prompt $" {
       pass "restart after previous fails"
   }
   -re ".*$gdb_prompt $" { fail "Can't restart" }
}
gdb_test "i ad a_global" ".*a_global.*static storage at address.*" "i ad a_global"
gdb_test "i add me"      ".*me.*local variable at frame offset.*"  "i ad me"
gdb_test "i ad a_thread_local" ".*a_thread_local.*a thread-local variable at offset.*" "i ad a_thread_local"

# Done!
#
gdb_exit

set timeout $oldtimeout
set verbose $oldverbose

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