Subversion Repositories openrisc_2011-10-31

# Copyright 1997, 1998, 1999, 2003, 2004, 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 [target_info exists gdb,nosignals] {

    verbose "Skipping signals.exp because of nosignals."

    continue

}

if $tracelevel then {

        strace $tracelevel

}

set testfile signals

set srcfile ${testfile}.c

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

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {

    untested signals.exp

    return -1

}

# Create and source the file that provides information about the compiler

# used to compile the test case.

if [get_compiler_info ${binfile}] {

    return -1;

}

if {$hp_cc_compiler} {

    set void 0

} else {

    set void void

}

gdb_exit

gdb_start

# This will need to be updated as the exact list of signals changes,

# but I want to test that TARGET_SIGNAL_0, TARGET_SIGNAL_DEFAULT, and

# TARGET_SIGNAL_UNKNOWN are skipped.

proc test_handle_all_print {} {

    global timeout

    # Increase timeout and expect input buffer for large output from gdb.

    # Allow blank or TAB as whitespace characters.

    set oldtimeout $timeout

    set timeout [expr "$timeout + 360"]

    verbose "Timeout is now $timeout seconds" 2

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

         && ( [istarget "*-*-gnu*"]

              || [istarget "*-*-mach*"] ) } {

        gdb_test "handle all print" "Signal\[   \]+Stop\[       \]+Print\[      \]+Pass to program\[    \]+Description\r\nSIGHUP\[      \]+Yes\[        \]+Yes\[        \]+Yes\[        \]+Hangup.*SIG63\[      \]+Yes\[        \]+Yes\[        \]+Yes\[        \]+Real-time event 63.*EXC_BREAKPOINT\[         \]+Yes\[        \]+Yes\[        \]+Yes\[        \]+Breakpoint"

    } else {

        gdb_test "handle all print" "Signal\[   \]+Stop\[       \]+Print\[      \]+Pass to program\[    \]+Description\r\nSIGHUP\[      \]+Yes\[        \]+Yes\[        \]+Yes\[        \]+Hangup.*SIG63\[      \]+Yes\[        \]+Yes\[        \]+Yes\[        \]+Real-time event 63.*"

    }

    set timeout $oldtimeout

    verbose "Timeout restored to $timeout seconds" 2

}

test_handle_all_print

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load $binfile

if [runto_main] then {

    # Since count is a static variable outside main, runto_main is no

    # guarantee that count will be 0 at this point.

    gdb_test_no_output "set variable count = 0"

    # Test an inferior function call that takes a signal that hits a

    # breakpoint (with a false condition).  When GDB tries to run the

    # stack dummy, it will hit the breakpoint at handler.  Provided it

    # doesn't lose its cool, this is not a problem, it just has to

    # note that the breakpoint condition is false and keep going.

    # ...setup an always false conditional breakpoint

    gdb_test "break handler if 0" "Breakpoint \[0-9\]+ .*"

    gdb_test_no_output "set \$handler_breakpoint_number = \$bpnum"

    # ...setup the signal

    gdb_test "next" "signal \\(SIGUSR1.*" "next to signal"

    gdb_test "next" "alarm \\(.*" "next to alarm #1"

    gdb_test "next" "\\+\\+count; /\\* first \\*/" \

        "next to ++count #1"

    sleep 2

    # ...call the function

    gdb_test "p func1 ()" "^p func1 \\(\\)\r\n.\[0-9\]* = $void" \

        "p func1 () #1"

    # ...veryfiy that the cout was updated

    gdb_test "p count" "= 2" "p count #1"

    # Now run the same test but with a breakpoint that does stop.

    # ...set up the breakpoint and signal

    gdb_test "condition \$handler_breakpoint_number" "now unconditional\\."

    gdb_test "next" "alarm \\(.*" "next to alarm #2"

    gdb_test "next" "\\+\\+count; /\\* second \\*/" \

        "next to ++count #2"

    sleep 2

    # ...call the function, which is immediatly interrupted

    gdb_test "p func1 ()" \

"Breakpoint \[0-9\]*, handler.*

The program being debugged stopped while in a function called from GDB.*" \

        "p func1 () #2"

    # ...verify the backtrace

    gdb_test "backtrace" \

        "#0  handler.*#1  .signal handler called.*#2  func1.*#3  .function called from gdb.*#4.*main.*" \

        "backtrace from handler when calling func1"

    # ...and continue (silently returning)

    gdb_test "continue" "Continuing\\."

    # ...and then count should have been incremented

    gdb_test "p count" "= 5" "p count #2"

    # Verify that "info signals" produces reasonable output.

    gdb_test "info signals" "SIGHUP.*SIGINT.*SIGQUIT.*SIGILL.*SIGTRAP.*SIGABRT.*SIGEMT.*SIGFPE.*SIGKILL.*SIGBUS.*SIGSEGV.*SIGSYS.*SIGPIPE.*SIGALRM.*SIGTERM.*SIGURG.*SIGSTOP.*SIGTSTP.*SIGCONT.*SIGCHLD.*SIGTTIN.*SIGTTOU.*SIGIO.*SIGXCPU.*SIGXFSZ.*SIGVTALRM.*SIGPROF.*SIGWINCH.*SIGLOST.*SIGUSR1.*SIGUSR2.*SIGPWR.*SIGPOLL.*SIGWIND.*SIGPHONE.*SIGWAITING.*SIGLWP.*SIGDANGER.*SIGGRANT.*SIGRETRACT.*SIGMSG.*SIGSOUND.*SIGSAK.*SIGPRIO.*SIG33.*SIG34.*SIG35.*SIG36.*SIG37.*SIG38.*SIG39.*SIG40.*SIG41.*SIG42.*SIG43.*SIG44.*SIG45.*SIG46.*SIG47.*SIG48.*SIG49.*SIG50.*SIG51.*SIG52.*SIG53.*SIG54.*SIG55.*SIG56.*SIG57.*SIG58.*SIG59.*SIG60.*SIG61.*SIG62.*SIG63.*Use the \"handle\" command to change these tables.*" \

        "info signals"

    # Verify that "info signal" correctly handles an argument, be it a

    # symbolic signal name, or an integer ID.

    gdb_test "info signal SIGTRAP" \

        "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \

        "info signal SIGTRAP"

    gdb_test "info signal 5" \

        "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \

        "info signal 5"

    # Verify that "handle" with illegal arguments is gracefully, um,

    # handled.

    gdb_test "handle" \

        "Argument required .signal to handle.*" \

        "handle without arguments"

    gdb_test "handle SIGFOO" \

        "Unrecognized or ambiguous flag word: \"SIGFOO\".*" \

        "handle with bogus SIG"

    gdb_test "handle SIGHUP frump" \

        "Unrecognized or ambiguous flag word: \"frump\".*" \

        "handle SIG with bogus action"

    # Verify that "handle" can take multiple actions per SIG, and that

    # in the case of conflicting actions, that the rightmost action

    # "wins".

    gdb_test "handle SIGHUP print noprint" \

        "SIGHUP\[ \t\]*No\[ \t\]*No\[ \t\]*Yes\[ \t\]*Hangup.*" \

        "handle SIG with multiple conflicting actions"

    # Exercise all the various actions.  (We don't care what the

    # outcome is, this is just to ensure that they all can be parsed.)

    gdb_test "handle SIGHUP print noprint stop nostop ignore noignore pass nopass" \

        "Signal.*" \

        "handle SIG parses all legal actions"

    # Verify that we can "handle" multiple signals at once,

    # interspersed with actions.

    gdb_test "handle SIG63 print SIGILL" \

        "SIGILL\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Illegal instruction.*SIG63\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*Real-time event 63.*" \

        "handle multiple SIGs"

    # Verify that "handle" can take a numeric argument for the signal

    # ID, rather than a symbolic name.  (This may not be portable;

    # works for HP-UX.)

    # Also note that this testpoint overrides SIGTRAP, which on HP-UX

    # at least, is used to implement single-steps and breakpoints.

    # Don't expect to run the inferior after this!

    set test "override SIGTRAP"

    gdb_test_multiple "handle 5 nopass" "$test" {

        -re "SIGTRAP is used by the debugger.*Are you sure you want to change it.*y or n.*" {

            gdb_test "y" \

                "SIGTRAP\[ \t\]*Yes\[ \t\]*Yes\[ \t\]*No\[ \t\]*Trace/breakpoint trap.*" \

                "$test"

        }

    }

    # GDB doesn't seem to allow numeric signal IDs larger than 15.  Verify

    # that restriction.  ??rehrauer: Not sure if this is a feature or a

    # bug, actually.  Why is the range 1-15?

    gdb_test "handle 58" \

        "Only signals 1-15 are valid as numeric signals.*Use \"info signals\" for a list of symbolic signals.*" \

        "invalid signal number rejected"

    # Verify that we can accept a signal ID range (number-number).

    # ??rehrauer: This feature isn't documented on the quick-reference

    # card.

    gdb_test "handle 13-15" \

        "SIGPIPE.*SIGALRM.*SIGTERM.*" \

        "handle multiple SIGs via integer range"

    # Bizarrely enough, GDB also allows you to reverse the range stat,

    # stop IDs.  E.g., "3-1" and "1-3" mean the same thing.  Probably

    # this isn't documented, but the code anticipates it, so we'd best

    # test it...

    gdb_test "handle 15-13" \

        "SIGPIPE.*SIGALRM.*SIGTERM.*" \

        "handle multiple SIGs via reverse integer range"

    # SIGINT is used by the debugger as well.  Verify that we can

    # change our minds about changing it.

    set test "override SIGINT"

    gdb_test_multiple "handle SIGINT nopass" "$test" {

        -re "SIGINT is used by the debugger.*Are you sure you want to change it.*y or n.*" {

            gdb_test_multiple "n" "$test" {

                -re "Not confirmed, unchanged.*Signal.*$gdb_prompt $"  {

                    # "Signal ..." should not be in the output.

                    fail gdb/8812 "$test"

                }

                -re "Not confirmed, unchanged.*$gdb_prompt $" {

                    pass "$test"

                }

            }

        }

    }

    # Verify that GDB responds gracefully to the "signal" command with

    # a missing argument.

    gdb_test "signal" \

        "Argument required .signal number..*" \

        "signal without arguments disallowed"

    # Verify that we can successfully send a signal other than 0 to

    # the inferior.  (This probably causes the inferior to run away.

    # Be prepared to rerun to main for further testing.)

    gdb_test "signal SIGUSR1" "Breakpoint.*handler.*"

    gdb_test "bt" \

        "#0  handler .*#1  .signal handler called.*\#2 .*main.*" \

        "backtrace for SIGUSR1"

}

return 0