2011/6/21 Douglas E. Engert <deeng...@anl.gov>: > > > On 6/21/2011 9:56 AM, Ludovic Rousseau wrote: >> 2011/6/21 Ludovic Rousseau<ludovic.rouss...@gmail.com>: >>> Hello, >>> >>> I try to debug a PKCS#11 program using pkcs11-spy. >>> The problem is that for an unknown reason the C_Initialize() from the >>> spy is calling istelf instead of the C_Initialize from OpenSC. >>> >>> After some 261418 calls the program crashes because of a stack >>> exhaustion of something similar. >>> >>> With another program the pkcs11-spy works great. So the problem is not >>> general :-( >>> >>> >>> It looks like the C_Initialize symbol used by C_GetFunctionList() from >>> OpenSC is resolved using the C_Initialize from the spy and not the >>> C_Initialize from OpenSC. >>> >>> If I rename the function C_Initialize into C_InitializeX in >>> src/pkcs11/pkcs11-global.c and use C_InitializeX to initialize >>> pkcs11_function_list it works but I get the problem on the next >>> PKCS#11 call, C_GetSlotList in my case. >>> >>> The program exposing the problem is a C++ one. But maybe that is not >>> related. >>> Anyone having the same problem? >>> >>> Any idea how to solve this? >> >> Using LD_DEBUG=all I get some debug info. >> >> With the working program I have: >> 2035: symbol=C_Initialize; lookup in >> file=/home/lroussea/sc/TU/tellme [0] >> 2035: symbol=C_Initialize; lookup in file=/lib/libdl.so.2 [0] >> 2035: symbol=C_Initialize; lookup in file=/lib/libpthread.so.0 [0] >> 2035: symbol=C_Initialize; lookup in file=/usr/lib/libstdc++.so.6 [0] >> 2035: symbol=C_Initialize; lookup in file=/lib/libm.so.6 [0] >> 2035: symbol=C_Initialize; lookup in file=/lib/libgcc_s.so.1 [0] >> 2035: symbol=C_Initialize; lookup in file=/lib/libc.so.6 [0] >> 2035: symbol=C_Initialize; lookup in >> file=/lib64/ld-linux-x86-64.so.2 [0] >> 2035: symbol=C_Initialize; lookup in >> file=/usr/lib/pkcs11/opensc-pkcs11.so [0] >> 2035: binding file /usr/lib/pkcs11/opensc-pkcs11.so [0] to >> /usr/lib/pkcs11/opensc-pkcs11.so [0]: normal symbol `C_Initialize' >> >> With the problematic program I have: >> 4621: symbol=C_Initialize; lookup in file=../src/TestSuiteP11 [0] >> 4621: symbol=C_Initialize; lookup in >> file=/usr/lib/libcppunit-1.12.so.1 [0] >> 4621: symbol=C_Initialize; lookup in file=/lib/libdl.so.2 [0] >> 4621: symbol=C_Initialize; lookup in file=/usr/lib/libssl.so.0.9.8 >> [0] >> 4621: symbol=C_Initialize; lookup in >> file=/usr/lib/libcrypto.so.0.9.8 [0] >> 4621: symbol=C_Initialize; lookup in file=/lib/libpthread.so.0 [0] >> 4621: symbol=C_Initialize; lookup in file=/usr/lib/libstdc++.so.6 [0] >> 4621: symbol=C_Initialize; lookup in file=/lib/libm.so.6 [0] >> 4621: symbol=C_Initialize; lookup in file=/lib/libgcc_s.so.1 [0] >> 4621: symbol=C_Initialize; lookup in file=/lib/libc.so.6 [0] >> 4621: symbol=C_Initialize; lookup in >> file=/lib64/ld-linux-x86-64.so.2 [0] >> 4621: symbol=C_Initialize; lookup in file=/usr/lib/libz.so.1 [0] >> 4621: symbol=C_Initialize; lookup in >> file=/usr/lib/pkcs11/pkcs11-spy.so [0] >> 4621: >> 4621: file=/usr/lib/pkcs11/pkcs11-spy.so [0]; needed by >> /usr/lib/pkcs11/opensc-pkcs11.so [0] (relocation dependency) >> 4621: >> 4621: binding file /usr/lib/pkcs11/opensc-pkcs11.so [0] to >> /usr/lib/pkcs11/pkcs11-spy.so [0]: normal symbol `C_Initialize' >> >> Note the "relocation dependency". >> opensc-pkcs11.so is using a symbol from pkcs11-spy.so. This is the problem. > > That should not happen.
:-) > Is it possible that the test program is causing opensc-pkcs11 to be loaded > because it was linked in, rather then being dynamically loaded based > on something like a --module option? No. > Can you identify the routine? Which routine? The problem is with the C_Initialize symbol. I think that is the routine you mention. > Is opensc-pkcs11 missing a routine, and only spy has the routine? No. > Could this have something to do C++ loading libs differently? That is also my suspect. One option is to configure pkcs11-spy to NOT export symbols except C_GetFunctionList. It will try and let you know. Bye -- Dr. Ludovic Rousseau _______________________________________________ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel
