[Bug ada/37430] New: C974013 gives exception

["joel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Laurent indicated this is spurious on other targets but it is 100% regular on
rtems so I thought I would give a backtrace. 

It is calling pthread_kill(SIGABORT).  This is the backtrace.

,.,. C974013 ACATS 2.5 88-01-01 00:00:00
---- C974013 Asynchronous Select: Trigger is delay_until which completes
                before abortable part.

Breakpoint 6, pthread_kill (thread=184614916, sig=6)
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/posix/src/pthreadkill.c:37
37        if ( !sig )
(gdb) bt
#0  pthread_kill (thread=184614916, sig=6)
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/posix/src/pthreadkill.c:37
#1  0x00005600 in system.task_primitives.operations.abort_task (
    t=<value optimized out>) at s-taprop.adb:1077
#2  0x00009950 in system.tasking.initialization.locked_abort_to_level (
    self_id=0x90f10, t=0x93f50, l=<value optimized out>) at s-tasini.adb:505
#3  0x0000ed88 in system.tasking.async_delays.timer_server (
    <_task>=<value optimized out>) at s-taasde.adb:382
#4  0x0000e0a4 in system.tasking.stages.task_wrapper (self_id=0x90f10)
    at s-tassta.adb:1151
#5  0x00052b38 in _Thread_Handler ()
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/score/src/threadhandler.c:150
#6  0x00052a48 in _Thread_Evaluate_mode ()
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/score/src/threadevaluatemode.c:53


This is the backtrace in rtems/powerpc from the abort (signo=6) when it is
processed.

(gdb) r
Starting program:
/home/joel/work-gnat/svn/gcc/gcc/testsuite/ada/acats/work-psim/tests/c9/c974013/c974013 

,.,. C974013 ACATS 2.5 88-01-01 00:00:00
---- C974013 Asynchronous Select: Trigger is delay_until which completes
                before abortable part.

Breakpoint 4, C_exception_handler (excPtr=0x715f20) at
/home/joel/work-gnat/svn//rtems/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/vectors_init.c:119
119       nest++;
(gdb) bt
#0  C_exception_handler (excPtr=0x715f20) at
/home/joel/work-gnat/svn//rtems/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/vectors_init.c:119
#1  0x00038f20 in wrap_call_global_handler_std ()
    at
/home/joel/work-gnat/svn//rtems/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_asm_macros.h:596
#2  0xa5a5a5a5 in ?? ()
#3  0x00015880 in <__gnat_notify_handled_exception> () at a-exextr.adb:140
#4  0x00015508 in ada.exceptions.exception_propagation.propagate_exception
(e=<value optimized out>, from_signal_handler=<value optimized out>)
    at a-exexpr.adb:116
#5  0x0001641c in <__gnat_raise_nodefer_with_msg> (e=0x3ad1331d) at
a-except.adb:829
#6  0x000164b4 in <__gnat_raise_exception> (e=0x7ecf4, message={P_ARRAY =
0x80000, P_BOUNDS = 0x429f0005}) at a-except.adb:868
#7  0x00006740 in system.task_primitives.operations.abort_handler (sig=<value
optimized out>) at s-taprop.adb:222
#8  0x00052420 in _POSIX_signals_Check_signal (api=0x6efef0, signo=6,
is_global=<value optimized out>)
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/posix/src/psignalchecksignal.c:85
#9  0x0004f214 in _POSIX_signals_Post_switch_extension (the_thread=<value
optimized out>)
    at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/posix/src/psignal.c:146
#10 0x00048d38 in _API_extensions_Run_postswitch () at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/score/src/apiext.c:103
#11 0x0004ae74 in _Thread_Dispatch () at
/home/joel/work-gnat/svn//rtems/c/src/../../cpukit/score/src/threaddispatch.c:175
#12 0x00039768 in ppc_exc_wrapup (f=<value optimized out>)
    at
/home/joel/work-gnat/svn//rtems/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_hdl.c:97
#13 0x00038e28 in recover_check_twiddle_std_std ()
    at
/home/joel/work-gnat/svn//rtems/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_asm_macros.h:596
Backtrace stopped: frame did not save the PC


-- 
           Summary: C974013 gives exception
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: joel at gcc dot gnu dot org
GCC target triplet: powerpc-rtems4.9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37430