[Bug gdb/14100] internal-error: frame_cleanup_after_sniffer: Assertion `frame->prologue_cache == NULL' failed.

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=14100

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Yao Qi <qiyao@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=be7d3cd5f13196dd070978aa48c2832c351c25b6

commit be7d3cd5f13196dd070978aa48c2832c351c25b6
Author: Yao Qi <yao.qi@linaro.org>
Date:   Fri Aug 11 09:30:02 2017 +0100

    Reset *THIS_CACHE in frame_unwind_try_unwinder in case of exception

    It is required that unwinder->sniffer should set *this_cache to NULL if
    the unwinder is not applicable or exception is thrown, so
    78ac5f831692f70b841044961069e50d4ba6a76f adds clear_pointer_cleanup to set
    *this_cache to NULL in case of exception in order to fix PR 14100.
    https://sourceware.org/ml/gdb-patches/2012-08/msg00075.html

    This patch removes that clear_pointer_cleanup, and catch all exception in
    the caller of unwinder->sniffer.  In case of exception, reset *this_case.

    gdb:

    2017-08-11  Yao Qi  <yao.qi@linaro.org>

        * dwarf2-frame.c (clear_pointer_cleanup): Remove.
        (dwarf2_frame_cache): Remove reset_cache_cleanup.
        (dwarf2_frame_cache):
        * frame-unwind.c (frame_unwind_try_unwinder): Catch
        RETURN_MASK_ALL and set *this_case to NULL.
        * frame-unwind.h: Update comments.

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