[Bug tdep/17379] PowerPC: internal-error: value_of_register_lazy: Assertion `frame_id_p (get_frame_id (frame))' failed.

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https://sourceware.org/bugzilla/show_bug.cgi?id=17379

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9d9bf2df89db515958b429a1aeb1db38884ba488

commit 9d9bf2df89db515958b429a1aeb1db38884ba488
Author: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
Date:   Fri Sep 12 09:20:25 2014 -0300

    PR tdep/17379: Fix internal-error when stack pointer is invalid.

    The problem is that rs6000_frame_cache attempts to read the stack backchain
via
    read_memory_unsigned_integer, which throws an exception if the stack
pointer is
    invalid.  With this patch, it calls safe_read_memory_integer instead, which
    doesn't throw an exception and allows for safe handling of that situation.

    gdb/ChangeLog
    2014-09-12  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>
            Ulrich Weigand� <uweigand@de.ibm.com>

        PR tdep/17379
        * rs6000-tdep.c (rs6000_frame_cache): Use safe_read_memory_integer
        instead of read_memory_unsigned_integer.

    gdb/testcase/ChangeLog
    2014-09-12  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>

        PR tdep/17379
        * gdb.arch/powerpc-stackless.S: New file.
        * gdb.arch/powerpc-stackless.exp: New file.

-----------------------------------------------------------------------

Summary of changes:
 gdb/ChangeLog                                |    7 ++++
 gdb/rs6000-tdep.c                            |   11 +++++--
 gdb/testsuite/ChangeLog                      |    6 ++++
 gdb/testsuite/gdb.arch/powerpc-stackless.S   |   24 +++++++++++++++
 gdb/testsuite/gdb.arch/powerpc-stackless.exp |   42 ++++++++++++++++++++++++++
 5 files changed, 87 insertions(+), 3 deletions(-)
 create mode 100644 gdb/testsuite/gdb.arch/powerpc-stackless.S
 create mode 100644 gdb/testsuite/gdb.arch/powerpc-stackless.exp

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From: "emachado at sourceware dot org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/17379] PowerPC: internal-error: value_of_register_lazy:
 Assertion `frame_id_p (get_frame_id (frame))' failed.
Date: Fri, 12 Sep 2014 13:00:00 -0000
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https://sourceware.org/bugzilla/show_bug.cgi?id\x17379

Edjunior Machado <emachado at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

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