[Bug fortran/88137] BACKTRACE seems to have a memory leak

[jb at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88137

--- Comment #7 from Janne Blomqvist <jb at gcc dot gnu.org> ---
Author: jb
Date: Sun Dec  2 15:14:51 2018
New Revision: 266725

URL: https://gcc.gnu.org/viewcvs?rev=266725&root=gcc&view=rev
Log:
Use atomic load/store to access static backtrace state pointer

As the static backtrace state pointer can be accessed from multiple
threads, use atomics to access it.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2018-12-02  Janne Blomqvist  <j...@gcc.gnu.org>

        Backport from trunk
        PR libfortran/88137
        * runtime/backtrace.c (show_backtrace): Use atomic load/store to
        access the static lbstate pointer.

Modified:
    branches/gcc-8-branch/libgfortran/ChangeLog
    branches/gcc-8-branch/libgfortran/runtime/backtrace.c