Hi,
we found a problem with parsing header files on a Redhat based Linux
(Scientific Linux 4). The gccxml version is a checkout from yesterday.
[lxbuild115] /build/roiser > uname -a
Linux lxbuild115.cern.ch 2.6.25.1-pfm080429 #1 SMP Tue May 6 17:53:24
CEST 2008 x86_64 x86_64 x86_64 GNU/Linux
[lxbuild115] /build/roiser > which gccxml
/build/roiser/gccxml/0.9.0_20080811/slc4_amd64_gcc34/bin/gccxml
[lxbuild115] /build/roiser > gccxml --version
GCC-XML version 0.9.0_20080811
[lxbuild115] /build/roiser > cat test.h
#include <iosfwd>
[lxbuild115] /build/roiser > gccxml test.h -fxml=test.xml
In file included from /usr/lib/gcc/x86_64-redhat-linux/
3.4.6/../../../../include/c++/3.4.6/x86_64-redhat-linux/bits/gthr.h:104,
from /usr/lib/gcc/x86_64-redhat-linux/
3.4.6/../../../../include/c++/3.4.6/x86_64-redhat-linux/bits/c++io.h:37,
from /usr/lib/gcc/x86_64-redhat-linux/
3.4.6/../../../../include/c++/3.4.6/iosfwd:47,
from test.h:1:
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:68: error: weakref 'int
__gthrw_pthread_once(pthread_once_t*, void (*)())' must have static
linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:69: error: weakref 'int
__gthrw_pthread_key_create(pthread_key_t*, void (*)(void*))' must have
static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:70: error: weakref 'int
__gthrw_pthread_key_delete(pthread_key_t)' must have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:71: error: weakref 'void*
__gthrw_pthread_getspecific(pthread_key_t)' must have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:72: error: weakref 'int
__gthrw_pthread_setspecific(pthread_key_t, const void*)' must have
static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:73: error: weakref 'int
__gthrw_pthread_create(pthread_t*, const pthread_attr_t*, void* (*)
(void*), void*)' must have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:75: error: weakref 'int
__gthrw_pthread_mutex_lock(pthread_mutex_t*)' must have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:76: error: weakref 'int
__gthrw_pthread_mutex_trylock(pthread_mutex_t*)' must have static
linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:77: error: weakref 'int
__gthrw_pthread_mutex_unlock(pthread_mutex_t*)' must have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:78: error: weakref 'int
__gthrw_pthread_mutexattr_init(pthread_mutexattr_t*)' must have static
linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:79: error: weakref 'int
__gthrw_pthread_mutexattr_settype(pthread_mutexattr_t*, int)' must
have static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:80: error: weakref 'int
__gthrw_pthread_mutexattr_destroy(pthread_mutexattr_t*)' must have
static linkage
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/
x86_64-redhat-linux/bits/gthr-default.h:82: error: weakref 'int
__gthrw_pthread_mutex_init(pthread_mutex_t*, const
pthread_mutexattr_t*)' must have static linkage
Looking into gthr-default.h
61 #if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK && defined
__GNUC_RH_RELEASE__ \
62 && ((__GNUC__ == 3 && __GNUC_MINOR__ == 4 &&
(__GNUC_PATCHLEVEL__ > 4 || (__GNUC_PATCHLEVEL__ == 4 &&
__GNUC_RH_RELEASE__ > 2))) \
63 || (__GNUC__ == 4 && __GNUC_MINOR__ == 0 &&
(__GNUC_PATCHLEVEL__ > 2 || (__GNUC_PATCHLEVEL__ == 2 &&
__GNUC_RH_RELEASE__ > 6)))) \
64 && ! defined __attribute__
65 # define __gthrw(name) \
66 extern __typeof(name) __gthrw_ ## name __attribute__
((__weakref__(#name)))
67
68 __gthrw(pthread_once);
69 __gthrw(pthread_key_create);
70 __gthrw(pthread_key_delete);
71 __gthrw(pthread_getspecific);
72 __gthrw(pthread_setspecific);
73 __gthrw(pthread_create);
74
75 __gthrw(pthread_mutex_lock);
76 __gthrw(pthread_mutex_trylock);
77 __gthrw(pthread_mutex_unlock);
78 __gthrw(pthread_mutexattr_init);
79 __gthrw(pthread_mutexattr_settype);
80 __gthrw(pthread_mutexattr_destroy);
81
82 __gthrw(pthread_mutex_init);
it seems that the macro __GXX_WEAK__ is the culprit because the system
compiler does not define it while the gccxml compiled version does
[lxbuild115] /build/roiser > echo | /usr/bin/c++ -E -dD - | grep
GXX_WEAK
[lxbuild115] /build/roiser > echo | /build/roiser/gccxml/
0.9.0_20080811/slc4_amd64_gcc34/bin/gccxml_cc1plus -E -dD - | grep
GXX_WEAK
#define __GXX_WEAK__ 1
and invoking the following line works fine
[lxbuild115] /build/roiser > gccxml --gccxml-cxxflags "-U__GXX_WEAK__"
test.h -fxml=test.xml
[lxbuild115] /build/roiser >
Would it be possible to build gccxml(_cc1plus) without the
__GXX_WEAK__ symbol? Or would there be another solution to this?
Thx for any help
Stefan
---
Stefan Roiser, CERN, PH Department, CH-1211 Geneva 23
tel:+41 22 76 74838, cell: +41 76 48 75334, fax:+41 22 76 69119
_______________________________________________
gccxml mailing list
[email protected]
http://www.gccxml.org/mailman/listinfo/gccxml
