https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83027
Bug ID: 83027
Summary: Hang when attaching a SIGINT handler
Product: gcc
Version: 7.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
Assignee: unassigned at gcc dot gnu.org
Reporter: porton at narod dot ru
Target Milestone: ---
Created attachment 42630
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42630&action=edit
The source reprising the bug
Extract attached bug.zip into an empty directory.
Run
make compile
./obj/simple_test
The command simple_test hangs.
The most wonderful thing is that if I do not compile it (as "make compile"
does) as an .a library imported when linking simple_test, but put all source
into a single directory and run "gnatmake simple_test", then the error does
not happen (but Program_Error is raised as it should be accordingly the docs,
because pragma Unreserve_All_Interrupts is not in effect in this example code).
Another weird thing that it happens with SIGINT but not with SIGTERM nor with
SIGCHLD.
The bug also does not happen if I remove "with Ada.Text_IO;".
GCC 7.2.0.
