[Bug testsuite/15703] New: map_hash.exp failures on rawhide because of gcc 'var-tracking-assignments' warning

["dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15703

            Bug ID: 15703
           Summary: map_hash.exp failures on rawhide because of gcc
                    'var-tracking-assignments' warning
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

When running on rawhide (3.10.0-0.rc7.git0.2.fc20.x86_64 or
3.10.0-0.rc7.git0.2.fc20.i686.PAE),  I'm seeing the following errors when
running the map_hash.exp testcase:

====
Running ../../src/testsuite/systemtap.maps/map_hash.exp ...
FAIL: systemtap.maps/map_hash_SSI.stp
FAIL: systemtap.maps/map_hash_stat_II.stp
FAIL: systemtap.maps/map_hash_stat_SI.stp
FAIL: systemtap.maps/map_hash_stat_SSI.stp
====

Looking into systemtap.log, the test is failing because the testcase isn't
expecting a "note" from gcc about turning off '-fvar-tracking-assignments'.

====
executing: stap ../../src/testsuite/systemtap.maps/map_hash_SSI.stp
FAIL: systemtap.maps/map_hash_SSI.stp
line 2049: expected ""
Got "/tmp/stap0rL6w4/stap_5ad2b49b66e6b2aa0a6e21eb57d0903f_83857_src.c: In
function 'probe_2055':"
    "/tmp/stap0rL6w4/stap_5ad2b49b66e6b2aa0a6e21eb57d0903f_83857_src.c:6326:13:
note: variable tracking size limit exceeded with -fvar-tracking-assignments,
retrying without"
    " static void probe_2055 (struct context * __restrict__ c) {"
    "             ^"
====

I'm not sure of the best way of fixing these errors.

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