[Bug record/25038] Process record does not support instruction 0xfae64 (xsave)

cvs-commit at gcc dot gnu.org sourceware-bugzilla@sourceware.org
Sun Oct 13 00:41:00 GMT 2019


https://sourceware.org/bugzilla/show_bug.cgi?id=25038

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d6e763135663f01349ed4126b80090ea2f37fcf2

commit d6e763135663f01349ed4126b80090ea2f37fcf2
Author: Tom de Vries <tdevries@suse.de>
Date:   Sun Oct 13 02:40:57 2019 +0200

    [gdb/testsuite] Add KFAIL for missing support of reverse-debugging xsave

    Normally the gdb.reverse/*.exp test-cases pass on my system (apart from the
    record/23188 KFAIL for gdb.reverse/step-precsave.exp).  But when specifying
    GLIBC_TUNABLES=glibc.tune.hwcaps=-XSAVEC_Usable to force glibc to use
    _dl_runtime_resolve_xsave instead of _dl_runtime_resolve_xsavec, we run
into
    1054 FAILs like this:
    ...
    (gdb) PASS: gdb.reverse/sigall-reverse.exp: b gen_HUP
    continue^M
    Continuing.^M
    Process record does not support instruction 0xfae64 at address \
      0x7ffff7ded958.^M
    Process record: failed to record execution log.^M
    ^M
    Program stopped.^M
    0x00007ffff7ded958 in _dl_runtime_resolve_xsave () from \
      /lib64/ld-linux-x86-64.so.2^M
    (gdb) FAIL: gdb.reverse/sigall-reverse.exp: get signal ABRT
    ...

    The problem is that the xsave instruction is not supported in
    reverse-debugging (PR record/25038).

    Add KFAILs for this PR.

    Tested on x86_64-linux.

    gdb/testsuite/ChangeLog:

    2019-10-13  Tom de Vries  <tdevries@suse.de>

        PR record/25038
        * gdb.reverse/sigall-precsave.exp: Add PR record/25038 KFAIL.
        * gdb.reverse/sigall-reverse.exp: Same.
        * gdb.reverse/solib-precsave.exp: Same.
        * gdb.reverse/solib-reverse.exp: Same.
        * gdb.reverse/step-precsave.exp: Same.
        * gdb.reverse/until-precsave.exp: Same.
        * gdb.reverse/until-reverse.exp: Same.
        * lib/gdb.exp (gdb_continue_to_breakpoint): Same.

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