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I've checked in patches to fix ld.so to handle the case for which I checked in a test yesterday. ld.so now tracks dependencies introduced by relocations. Example: main dlopen()s with RTLD_GLOBAL liba libb liba defines foo libb defines bar bar in libb needs foo If now the main program calls bar in libb the reference to foo gets resolved with the foo in liba. Formerly, if now liba gets unloaded, following calls to bar leads to a segfault since the jump to foo ends in nirvana. Now liba does not actually get removed until libb also gets removed. To see it actually works run the test case in dlfcn with LD_DEBUG=files. Fortunately I didn't have to change much. Most of the work was done when I added the debug messages quite some time back. We also can avoid the expensive work to add the dependency by some cheap tests so that the overall penalties of introducing this feature are very low. -- ---------------. drepper at gnu.org ,-. 1325 Chesapeake Terrace Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA Red Hat `--' drepper at redhat.com `------------------------
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