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Bug#673772: marked as done (asynchronous transfer of control with delay abort and syscalls not working)

Your message dated Tue, 5 Apr 2022 11:19:04 +0200
with message-id <YkwJiEA3+obyFkLy@pegase>
and subject line close
has caused the Debian Bug report #673772,
regarding asynchronous transfer of control with delay abort and syscalls not working
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
673772: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673772
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gnat-4.6
Version: 4.6.3-4
Severity: normal

Hi,

Asynchronous transfer of control (ATC) is needed in Ada to interrupt a
blocking call to an imported operation (e.g. a system call). This
method is not working on the mips architecture.

Given the following reproducer:

with Interfaces.C;

procedure Atc
is
   package C renames Interfaces.C;

   function C_Usleep (Secs : C.int) return C.int;
   pragma Import (C, C_Usleep, "usleep");

   Res : C.int;
begin
   select
      delay 1.0;
   then abort
      Res := C_Usleep (10000000);
   end select;
end Atc;

Result:
$ time ./atc

real   0m10.165s
user   0m0.108s
sys    0m0.032s

The call to usleep() is not aborted by the ATC.

- reto

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: mips

Kernel: Linux 2.6.32-5-4kc-malta
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            4.6.3-5
ii  gnat-4.6-base      4.6.3-4
ii  libc6              2.13-32
ii  libc6-dev          2.13-32
ii  libgcc1            1:4.7.0-8
ii  libgmp10           2:5.0.5+dfsg-1.1
ii  libgnat-4.6        4.6.3-4
ii  libgnatprj4.6      4.6.3-4
ii  libgnatvsn4.6      4.6.3-4
ii  libmpc2            0.9-4
ii  libmpfr4           3.1.0-5
ii  multiarch-support  2.13-32
ii  zlib1g             1:1.2.7.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

--- End Message ---
--- Begin Message --- 
There seems to be no way to improve the situation.
Keeping this bug open serves no purpose anymore.
Reto Buerki agrees that this bug can be closed.

--- End Message ---
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