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84aafa9199
2001-09-07 Tom Rix <trix@redhat.com> * sysdeps/unix/sysv/aix/sysv_termio.h: New file. 2001-08-26 Tom Rix <trix@redhat.com> * sysdeps/unix/sysv/aix/Makefile (aix-syscalls.o): More linker command line options. * sysdeps/unix/sysv/aix/start.s: New file, rework of start.c * sysdeps/unix/sysv/aix/start.c: Removed. * sysdeps/unix/sysv/aix/start-libc.c: New file. * sysdeps/unix/sysv/aix/init-first.c: New file. * sysdeps/unix/sysv/aix/fcntl.c: Alias __libc_fcntl to __fcntl. 2001-09-08 Ben Collins <bcollins@debian.org> * sysdeps/arm/dl-machine.h: Fix usage of new _dl_signal_error() format. * sysdeps/generic/dl-machine.h: Likewise. * sysdeps/hppa/dl-fptr.c: Likewise. * sysdeps/ia64/dl-fptr.c: Likewise. * sysdeps/mach/hurd/dl-sysdep.c: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/mips/mips64/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.c: Likewise. 2001-09-07 Ben Collins <bcollins@debian.org> * sysdeps/sparc/sparc32/dl-machine.h: Fix typo. * sysdeps/hppa/dl-lookupcfg.h: Forward declare struct link_map. * elf/dl-lookup.c (add_dependency): Bump l_opencount of all dependencies if necessary.
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
#include <dlfcn.h>
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#include <mcheck.h>
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#include <stdio.h>
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#include <stdlib.h>
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int
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main (void)
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{
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void *h1;
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void *h2;
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int (*fp) (void);
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int *vp;
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mtrace ();
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/* Open the two objects. */
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h1 = dlopen ("reldepmod1.so", RTLD_LAZY | RTLD_GLOBAL);
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if (h1 == NULL)
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{
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printf ("cannot open reldepmod1.so: %s\n", dlerror ());
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exit (1);
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}
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h2 = dlopen ("reldepmod3.so", RTLD_LAZY);
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if (h2 == NULL)
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{
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printf ("cannot open reldepmod3.so: %s\n", dlerror ());
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exit (1);
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}
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/* Get the address of the variable in reldepmod1.so. */
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vp = dlsym (h1, "some_var");
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if (vp == NULL)
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{
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printf ("cannot get address of \"some_var\": %s\n", dlerror ());
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exit (1);
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}
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*vp = 42;
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/* Get the function `call_me' in the second object. This has a
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dependency which is resolved by a definition in reldepmod1.so. */
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fp = dlsym (h2, "call_me");
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if (fp == NULL)
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{
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printf ("cannot get address of \"call_me\": %s\n", dlerror ());
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exit (1);
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}
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/* Call the function. */
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if (fp () != 0)
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{
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puts ("function \"call_me\" returned wrong result");
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exit (1);
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}
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/* Now close the first object. It must still be around since we have
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an implicit dependency. */
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if (dlclose (h1) != 0)
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{
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printf ("closing h1 failed: %s\n", dlerror ());
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exit (1);
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}
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/* Open the first object again. */
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h1 = dlopen ("reldepmod1.so", RTLD_LAZY | RTLD_GLOBAL);
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if (h1 == NULL)
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{
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printf ("cannot open reldepmod1.so the second time: %s\n", dlerror ());
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exit (1);
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}
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/* Get the variable address again. */
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vp = dlsym (h1, "some_var");
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if (vp == NULL)
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{
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printf ("cannot get address of \"some_var\" the second time: %s\n",
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dlerror ());
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exit (1);
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}
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/* The variable now must have its originial value. */
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if (*vp != 42)
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{
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puts ("variable \"some_var\" reset");
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exit (1);
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}
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/* Close the first object again, we are done. */
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if (dlclose (h1) != 0)
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{
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printf ("closing h1 failed: %s\n", dlerror ());
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exit (1);
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}
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if (dlclose (h2) != 0)
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{
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printf ("closing h2 failed: %s\n", dlerror ());
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exit (1);
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}
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return 0;
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}
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