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20fe49b93a
Change type of l_idx to int. * elf/dl-close.c: Basically rewrite. Do not use l_opencount to determine whether a DSO has to be unloaded. Instead compute this in this function. * elf/dl-deps.c: No need to manipulate l_opencount anymore. * elf/dl-lookup.c: Likewise. * elf/rtld.c: Likewise * elf/dl-open.c: Likewise. Use l_init_called to determine whether object was just loaded. * elf/dl-fini.c: Bump l_direct_opencount instead of l_opencount. * elf/dl-load.c (_dl_map_object_from_fd): Do not recognize DSO which is about to be unloaded as a match. (_dl_map_object): Likewise. * elf/do-lookup.h (do_lookup_x): Do not look into DSO which is about to be unloaded. * elf/circleload1.c: Don't use l_opencount anymore. * elf/neededtest.c: Likewise. * elf/neededtest2.c: Likewise. * elf/neededtest3.c: Likewise. * elf/neededtest4.c: Likewise. * elf/unload.c: Likewise. * elf/unload2.c: Likewise. * elf/loadtest.c: Likewise. * elf/rtld.c: Preloading errors are now never fatal. 2005-03-08 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run unload5 test. * elf/unload5.c: New file. 2005-03-08 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run unload4 test. * elf/unload4.c: New file. * elf/unload4mod1.c: New file. * elf/unload4mod2.c: New file. * elf/unload4mod3.c: New file. * elf/unload4mod4.c: New file.
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#include <dlfcn.h>
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#include <elf.h>
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#include <errno.h>
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#include <error.h>
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#include <link.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define OUT \
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for (map = _r_debug.r_map; map != NULL; map = map->l_next) \
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if (map->l_type == lt_loaded) \
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printf ("name = \"%s\", direct_opencount = %d\n", \
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map->l_name, (int) map->l_direct_opencount); \
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fflush (stdout)
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int
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main (void)
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{
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void *h[3];
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struct link_map *map;
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void (*fp) (void);
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h[0] = dlopen ("unload2mod.so", RTLD_LAZY);
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h[1] = dlopen ("unload2mod.so", RTLD_LAZY);
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if (h[0] == NULL || h[1] == NULL)
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error (EXIT_FAILURE, errno, "cannot load \"unload2mod.so\"");
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h[2] = dlopen ("unload2dep.so", RTLD_LAZY);
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if (h[2] == NULL)
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error (EXIT_FAILURE, errno, "cannot load \"unload2dep.so\"");
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puts ("\nAfter loading everything:");
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OUT;
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dlclose (h[0]);
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puts ("\nAfter unloading \"unload2mod.so\" once:");
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OUT;
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dlclose (h[1]);
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puts ("\nAfter unloading \"unload2mod.so\" twice:");
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OUT;
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fp = dlsym (h[2], "foo");
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puts ("\nnow calling `foo'");
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fflush (stdout);
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fp ();
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puts ("managed to call `foo'");
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fflush (stdout);
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dlclose (h[2]);
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puts ("\nAfter unloading \"unload2dep.so\":");
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OUT;
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return 0;
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}
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