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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [testsuite/] [gdb.threads/] [attach-into-signal.exp] - Blame information for rev 842

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1 227 jeremybenn
# Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program.  If not, see .
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# This test was created by modifying attach-stopped.exp.
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# This file was created by Jan Kratochvil .
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# This test only works on Linux
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if { ![isnative] || [is_remote host] || ![istarget *-linux*] } {
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    continue
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}
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set testfile "attach-into-signal"
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set srcfile  ${testfile}.c
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set binfile  ${objdir}/${subdir}/${testfile}
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set escapedbinfile  [string_to_regexp ${objdir}/${subdir}/${testfile}]
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remote_exec build "rm -f ${binfile}"
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# For debugging this test
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#
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#log_user 1
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proc corefunc { threadtype } {
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    global srcfile
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    global binfile
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    global escapedbinfile
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    global srcdir
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    global subdir
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    global gdb_prompt
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    if [get_compiler_info ${binfile}] {
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        return -1
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    }
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    # Start the program running and then wait for a bit, to be sure
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    # that it can be attached to.
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    # Statistically there is a better chance without giving process a nice.
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    set testpid [eval exec $binfile &]
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    exec sleep 2
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    # Run 2 passes of the test.
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    # The C file inferior stops pending its signals if a single one is lost,
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    # we test successful redelivery of the caught signal by the 2nd pass.
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    # linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs.
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    set attempts 100
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    set attempt 1
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    set passes 1
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    while { $passes < 3 && $attempt <= $attempts } {
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        set stoppedtry 0
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        while { $stoppedtry < 10 } {
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            if [catch {open /proc/${testpid}/status r} fileid] {
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                set stoppedtry 10
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                break
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            }
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            gets $fileid line1;
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            gets $fileid line2;
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            close $fileid;
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            if {![string match "*(stopped)*" $line2]} {
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                # No PASS message as we may be looping in multiple attempts.
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                break
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            }
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            sleep 1
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            set stoppedtry [expr $stoppedtry + 1]
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        }
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        if { $stoppedtry >= 10 } {
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            verbose -log $line2
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            set test "$threadtype: process is still running on the attempt # $attempt of $attempts"
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            break
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        }
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        # Main test:
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        set test "$threadtype: attach (pass $passes), pending signal catch"
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        if {[gdb_test_multiple "attach $testpid" $test {
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            -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Received Alarm clock.*$gdb_prompt $" {
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                # nonthreaded:
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                pass $test
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                verbose -log "$test succeeded on the attempt # $attempt of $attempts"
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                set passes [expr $passes + 1]
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            }
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            -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
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                # nonthreaded:
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                # We just lack the luck, we should try it again.
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                set attempt [expr $attempt + 1]
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            }
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            -re "Attaching to process $testpid.*Received Alarm clock.*$gdb_prompt $" {
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                # threaded:
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                pass $test
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                verbose -log "$test succeeded on the attempt # $attempt of $attempts"
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                set passes [expr $passes + 1]
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            }
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            -re "Attaching to process $testpid.*$gdb_prompt $" {
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                # threaded:
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                # We just lack the luck, we should try it again.
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                set attempt [expr $attempt - 1]
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            }
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        }] != 0 } {
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            break
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        }
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        gdb_test "detach" "Detaching from.*" ""
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    }
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    if {$passes < 3} {
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        if {$attempt > $attempts} {
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            unresolved $test
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        } else {
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            fail $test
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        }
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    }
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    # Exit and detach the process.
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    gdb_exit
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    # Make sure we don't leave a process around to confuse
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    # the next test run (and prevent the compile by keeping
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    # the text file busy), in case the "set should_exit" didn't
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    # work.
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    # Continue the program - some Linux kernels need it before -9 if the
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    # process is stopped.
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    remote_exec build "kill -s CONT ${testpid}"
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    remote_exec build "kill -9 ${testpid}"
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}
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# Start with clean gdb
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gdb_exit
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# build the test case first without threads
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#
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if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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    untested "attach-into-signal.exp (unthreaded)"
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    return -1
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}
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set debug lin-lwp 1" "" ""
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corefunc nonthreaded
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# build the test case also with threads
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#
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if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
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    untested "attach-into-signal.exp (threaded)"
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    return -1
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}
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set debug lin-lwp 1" "" ""
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corefunc threaded

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