Matthew Burgess wrote:
> On Tue, 14 Sep 2010 11:43:33 -0500, Bruce Dubbs <[email protected]> wrote:
>
>> Upgrade the stack limit with 'ulimit -s 32768' and rerun the tests to
>> see if they continue to fail.
>
> Bruce, I've just tried this with various stack sizes. 11k still tickles the
> bug, 12k is big enough to work around it. This is, however, just running the
> following:
>
> $ ulimit -s 12288
> $ cd /sources/gcc-4.5.1/gcc/testsuite/gcc.c-torture/compile
> $ gcc -o limits-exprparen.o limits-exprparen.c
>
> i.e. it's not being tested from within the GCC test framework. I don't think
> that should matter though.
I just ran a complete gcc build with ulimit -s 32768 and the tests all
passed except 13 from mudflap. Of course we already mention mudflap. I
don't recall ever having all the mudflap tests pass.
This got me interested.
gcc -Wall -o t -O2 -fmudflap -fmudflapir -lmudflap pass46-frag.c
pass46-frag.c:15:14: warning: array subscript is above array bounds
gcc -Wall -o t -O2 -fmudflap -fmudflapir -lmudflap pass45-frag.c
pass45-frag.c:21:9: warning: unused variable 'cccp'
g++ -Wall -o t -O3 -fmudflap -fmudflapir -lmudflap fail31-frag.c
fail31-frag.c:8:7: warning: unused variable 'z'
I can't get pass41-frag.cxx to fail. It's a very simple c++ Hello,
World (literally) using STL strings.
libmudflap is a library to instrument all risky pointer/array
dereferencing operations, some standard library string/heap functions,
and some other associated constructs with range/validity tests.
It should never be used in a production program.
-- Bruce
FAIL: libmudflap.c/pass46-frag.c (-O2) (test for excess errors)
FAIL: libmudflap.c/pass46-frag.c (-O2) (test for excess errors)
FAIL: libmudflap.c/fail31-frag.c (-O3) output pattern test
FAIL: libmudflap.c/pass45-frag.c (-O3) execution test
FAIL: libmudflap.c/pass45-frag.c (-O3) output pattern test
FAIL: libmudflap.c/pass45-frag.c (-O3) execution test
FAIL: libmudflap.c/pass45-frag.c (-O3) output pattern test
FAIL: libmudflap.c/pass46-frag.c (-O3) (test for excess errors)
FAIL: libmudflap.c/pass46-frag.c (-O3) (test for excess errors)
Running /sources/gcc-4.5.1/libmudflap/testsuite/libmudflap.c/externs.exp ...
Running
/sources/gcc-4.5.1/libmudflap/testsuite/libmudflap.c++/c++frags.exp ...
FAIL: libmudflap.c++/pass41-frag.cxx execution test
FAIL: libmudflap.c++/pass41-frag.cxx ( -O) execution test
FAIL: libmudflap.c++/pass41-frag.cxx (-O2) execution test
FAIL: libmudflap.c++/pass41-frag.cxx (-O3) execution test
Running /sources/gcc-4.5.1/libmudflap/testsuite/libmudflap.c++/ctors.exp ...
Running
/sources/gcc-4.5.1/libmudflap/testsuite/libmudflap.cth/cthfrags.exp ...
=== libmudflap Summary ===
# of expected passes 1414
# of unexpected failures 13
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