GCC 4.0 has broken rtems thread support for all targets:
# configure --enable-languages=c,c++ --enable-threads=rtems\
[more options]
...
# make
...
/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/gcc/xgcc
-shared-libgcc
-B/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/gcc/
-nostdinc++
-L/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/libstdc++-v3/src
-L/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/libstdc++-v3/src/.libs
-nostdinc
-B/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/newlib/
-isystem
/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/newlib/targ-include
-isystem
/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/gcc-4.0.0/newlib/libc/include
-B/opt/rtems-4.7/arm-rtems4.7/bin/ -B/opt/rtems-4.7/arm-rtems4.7/lib/ -isystem
/opt/rtems-4.7/arm-rtems4.7/include -isystem
/opt/rtems-4.7/arm-rtems4.7/sys-include
-I/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/gcc-4.0.0/libstdc++-v3/../gcc
-I/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/libstdc++-v3/include/arm-rtems4.7
-I/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/build/arm-rtems4.7/libstdc++-v3/include
-I/users/rtems/src/rpms/BUILD/rtems-4.7-arm-rtems4.7-gcc-newlib-gcc4.0.0newlib1.13.0/gcc-4.0.0/libstdc++-v3/libsupc++
-O2 -g -O2 -g -O2 -fno-implicit-templates -Wall -Wextra -Wwrite-strings
-Wcast-qual -fdiagnostics-show-location=once -c
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc -o guard.o
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:51: error:
'__gthread_recursive_mutex_t' does not name a type
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:62: error:
'__gthread_recursive_mutex_t' does not name a type
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc: In static member function
'static void<unnamed>::static_mutex::lock()':
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:81: error: 'mutex' was not
declared in this scope
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:81: error:
'__gthread_recursive_mutex_lock' was not declared in this scope
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc: In static member function
'static void<unnamed>::static_mutex::unlock()':
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:86: error: 'mutex' was not
declared in this scope
../../../../gcc-4.0.0/libstdc++-v3/libsupc++/guard.cc:86: error:
'__gthread_recursive_mutex_unlock' was not declared in this scope
Without having looked into details, something in GCC seems to have changed which
silently breaks gthr-rtems.h.
--
Summary: gthread_recursive_mutex's missing
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: corsepiu at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org,joel at gcc dot gnu dot
org
GCC target triplet: *-rtems*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19399
