Hello,
I have coredump for exception handling in a c++ program using dynamic library.
I wrote the minimal application using dlopen to load a libtest_so.so and
execute functions in so with dlsym. In the libtest_so.so I throw an exception
and try to catch it.
Source code:
1) main application test_exception (test.cpp)
#include
#include
typedef void (*TFuncVoid)();
int main() {
void* testlib = dlopen("./libtest_so.so", RTLD_NOW | RTLD_GLOBAL);
TFuncVoid FFunc = 0;
FFunc = TFuncVoid(dlsym(testlib, "ThrowCatchException"));
if (FFunc) {
try {
FFunc();
} catch (...) {
printf("Catched in test.cpp. \n");
}
}
return 0;
}
2) library libtest_so.so (test_so.cpp)
#include
extern "C" void ThrowCatchException() {
try {
throw 5;
} catch (int) {
printf("catch (int): la-la-la \n");
} catch (...) {
printf("catch (...): la-la-la \n");
}
}
3) Commands for compiling the application:
g++44 -g -Wall -fPIC -fexceptions
-DNATIVE_INCLUDE_PATH="/usr/local/lib/gcc44/include/c++/" -I
-I -o CMakeFiles/test_exception.dir/test.cpp.o -c
/test/test.cpp
g++44 -nostdlib /usr/lib/crt1.o /usr/lib/crti.o
/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd7.2/4.4.1/crtbegin.o -g -Wall
-fPIC -fexceptions -DNATIVE_INCLUDE_PATH="/usr/local/lib/gcc44/include/c++/"
-Wl,-E CMakeFiles/test_exception.dir/test.cpp.o -o test_exception
/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd7.2/4.4.1/../../../libsupc++.a
/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd7.2/4.4.1/libgcc.a
/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd7.2/4.4.1/libgcc_eh.a -lc -lm
/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd7.2/4.4.1/crtend.o
/usr/lib/crtn.o
4) Commands for compiling the library:
g++44 -g -Wall -fPIC -fexceptions
-DNATIVE_INCLUDE_PATH="/usr/local/lib/gcc44/include/c++/" -I
-I -o CMakeFiles/test_so.dir/test_so.cpp.o -c
/test_so.cpp
g++44 -fPIC -g -Wall -fexceptions
-DNATIVE_INCLUDE_PATH="/usr/local/lib/gcc44/include/c++/" -shared
-Wl,-soname,libtest_so.so -o libtest_so.so CMakeFiles/test_so.dir/test_so.cpp.o
4) correct output (command ./test_exception):
"catch (int): la-la-la"
5) wrong result (command ./test_exception):
terminate called after throwing an instance of 'int'
Abort trap (core dumped)
6) my gcc configuration info (g++44 -v)
Using built-in specs.
Target: x86_64-portbld-freebsd7.2
Configured with: ./../gcc-4.4-20090616/configure --disable-nls
--with-system-zlib --with-libiconv-prefix=/usr/local --with-gmp=/usr/local
--program-suffix=44 --libdir=/usr/local/lib/gcc44
--libexecdir=/usr/local/libexec/gcc44
--with-gxx-include-dir=/usr/local/lib/gcc44/include/c++/ --disable-libgcj
--prefix=/usr/local --mandir=/usr/local/man --infodir=/usr/local/info/gcc44
--build=x86_64-portbld-freebsd7.2
Thread model: posix
gcc version 4.4.1 20090616 (prerelease) (GCC)
--
Summary: coredump in exception handling (gcc44, FreeBSD 7.2)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: skylanderr at gmail dot com
GCC host triplet: x86_64-unknown-freebsd7.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45209
