Package: gnat-4.6
Version: 4.6.3-2
Severity: normal
Hi,
Exceptions with tracebacks enabled (gnatbind -E switch) cause a
STORAGE_ERROR on kfreebsd-i386 when raised in a task rendezvous.
Simple reproducer:
procedure Main
is
task Test_Task is
entry Rendezvous;
end Test_Task;
task body Test_Task is
begin
accept Rendezvous do
raise Constraint_Error with "Some error occurred";
end Rendezvous;
end Test_Task;
begin
Test_Task.Rendezvous;
end Main;
This code works fine without tracebacks in exception occurrences. Enabling
tracebacks:
package Binder is
for Default_Switches ("ada") use ("-E");
end Binder;
This produces the following result:
Execution terminated by unhandled exception
Exception name: STORAGE_ERROR
Message: s-intman.adb:139 explicit raise
Call stack traceback locations:
0x2808c27b
gdb backtrace:
Program received signal ?, Unknown signal.
0x283bcd67 in __pthread_sigsuspend () from
/lib/i386-kfreebsd-gnu/libpthread.so.0
(gdb) bt
#0 0x283bcd67 in __pthread_sigsuspend () from
/lib/i386-kfreebsd-gnu/libpthread.so.0
#1 0x283bbd48 in __pthread_wait_for_restart_signal () from
/lib/i386-kfreebsd-gnu/libpthread.so.0
#2 0x283bccb2 in pthread_create@@GLIBC_2.3 () from
/lib/i386-kfreebsd-gnu/libpthread.so.0
#3 0x2808e6d7 in system__task_primitives__operations__create_task () from
/usr/lib/i386-kfreebsd-gnu/libgnarl-4.6.so.1
#4 0x2809488f in system__tasking__stages__activate_tasks () from
/usr/lib/i386-kfreebsd-gnu/libgnarl-4.6.so.1
#5 0x0804a26b in _ada_main ()
The signal ? looks suspicious, but I'm not sure if this is another problem on
this arch.
Regards,
- reto
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: kfreebsd-i386 (i386)
Kernel: kFreeBSD 8.2-1-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages gnat-4.6 depends on:
ii gcc-4.6 4.6.3-1
ii gnat-4.6-base 4.6.3-2
ii libc0.1 2.13-27
ii libc0.1-dev 2.13-27
ii libgcc1 1:4.6.3-1
ii libgmp10 2:5.0.4+dfsg-1
ii libgnat-4.6 4.6.3-2
ii libgnatprj4.6 4.6.3-2
ii libgnatvsn4.6 4.6.3-2
ii libmpc2 0.9-4
ii libmpfr4 3.1.0-4
ii multiarch-support 2.13-27
ii zlib1g 1:1.2.6.dfsg-2
gnat-4.6 recommends no packages.
Versions of packages gnat-4.6 suggests:
pn ada-reference-manual-html <none>
pn ada-reference-manual-info <none>
pn ada-reference-manual-pdf <none>
pn ada-reference-manual-text <none>
pn gnat-4.6-doc <none>
pn gnat-4.6-sjlj <none>
-- no debconf information
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