Hi Xiangyu,
As Matt said, my swig is too old (1.3.40). I just fixed the problem by
updating it to 2.0.9 (latest one).
Maybe the dependency on the official website should be updated
accordingly... http://www.gem5.org/Dependencies
-Tao
On 03/21/2013 01:00 PM, Rio Xiangyu Dong wrote:
The root cause is that the new src/SConscript does not set up GCC
environment for version 4.4 correctly
if env['GCC']:
# Depending on the SWIG version, we also need to supress
# warnings about missing field initializers.
swig_env.Append(CCFLAGS='-Wno-missing-field-initializers')
* # suppress warning from GCC 4.4*
* if compareVersions(env['GCC_VERSION'], '4.4') >= 0:*
* swig_env.Append(CCFLAGS='-Wno-uninitialized')*
if compareVersions(env['GCC_VERSION'], '4.6') >= 0:
swig_env.Append(CCFLAGS='-Wno-unused-but-set-variable')
# If gcc supports it, also warn for deletion of derived
# classes with non-virtual desctructors. For gcc >= 4.7 we
# also have to disable warnings about the SWIG code having
# potentially uninitialized variables.
if compareVersions(env['GCC_VERSION'], '4.7') >= 0:
new_env.Append(CXXFLAGS='-Wdelete-non-virtual-dtor')
swig_env.Append(CCFLAGS='-Wno-maybe-uninitialized')
*From:*gem5-users-boun...@gem5.org
[mailto:gem5-users-boun...@gem5.org] *On Behalf Of *Steve Reinhardt
*Sent:* Wednesday, March 20, 2013 8:09 PM
*To:* gem5 users mailing list
*Subject:* Re: [gem5-users] gem5 build problem
The quickest fix is to delete this line in src/SConscript:
swig_env.Append(CCFLAGS='-Werror')
Steve
On Wed, Mar 20, 2013 at 7:52 PM, Tao Zhang <tao.zhang.0...@gmail.com
<mailto:tao.zhang.0...@gmail.com>> wrote:
Dear all,
When I built the latest gem5, the following compilation erros came up.
More interesting, it only happens when buiding gem5.fast. gem5.debug
can still be built successfully. Any clue to fix it? (swig--1.3.40,
scons--2.1.0, python--2.6.6, gcc--4.4.5)
============================================================
cc1plus: warnings being treated as errors
build/ALPHA/python/swig/core_wrap.cc: In function 'PyObject*
_wrap_new_Cycles(PyObject*, PyObject*)':
build/ALPHA/python/swig/core_wrap.cc:3323: error: 'argv[0]' may be
used uninitialized in this function
scons: *** [build/ALPHA/python/swig/core_wrap.fo
<http://core_wrap.fo>] Error 1
cc1plus: warnings being treated as errors
build/ALPHA/python/swig/event_wrap.cc: In function 'PyObject*
_wrap_new_Cycles(PyObject*, PyObject*)':
build/ALPHA/python/swig/event_wrap.cc:3380: error: 'argv[0]' may be
used uninitialized in this function
build/ALPHA/python/swig/event_wrap.cc: In function 'PyObject*
_wrap_simulate(PyObject*, PyObject*)':
build/ALPHA/python/swig/event_wrap.cc:4590: error: 'argv[0]' may be
used uninitialized in this function
scons: *** [build/ALPHA/python/swig/event_wrap.fo
<http://event_wrap.fo>] Error 1
cc1plus: warnings being treated as errors
build/ALPHA/python/swig/range_wrap.cc: In function 'PyObject*
_wrap_new_Cycles(PyObject*, PyObject*)':
build/ALPHA/python/swig/range_wrap.cc:3120: error: 'argv[0]' may be
used uninitialized in this function
scons: *** [build/ALPHA/python/swig/range_wrap.fo
<http://range_wrap.fo>] Error 1
cc1plus: warnings being treated as errors
build/ALPHA/python/swig/debug_wrap.cc: In function 'PyObject*
_wrap_new_Cycles(PyObject*, PyObject*)':
build/ALPHA/python/swig/debug_wrap.cc:10624: error: 'argv[0]' may be
used uninitialized in this function
scons: *** [build/ALPHA/python/swig/debug_wrap.fo
<http://debug_wrap.fo>] Error 1
scons: building terminated because of errors.
============================================================
Regards,
--
**********************************
Tao Zhang
Department of Computer Science& Engineering,
College of Engineering, Pennsylvania State University
354B IST Building
University Park, PA 16802
(Office) 814-863-1047 <tel:814-863-1047>
(Mobile) 408-930-8930 <tel:408-930-8930>
Homepage: www.cse.psu.edu/~tzz106 <http://www.cse.psu.edu/%7Etzz106>
**********************************
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_..`--'_..-_/ /--'_.' ,'
(il),-'' (li),' ((!.-'
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your grasp, but if you will sit down quietly, may alight upon you.
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