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authorRoland McGrath <roland@gnu.org>2003-03-15 23:16:22 +0000
committerRoland McGrath <roland@gnu.org>2003-03-15 23:16:22 +0000
commit45e4762c2c7d04cd51213735c2b440c94cdcf28a (patch)
tree5b2c7f008ae7f0a787bf6798bbb7a8663bc7b0ed /dlfcn/tst-dlinfo.c
parent124dcac84b992d26cfe992f9017f49e92c37add2 (diff)
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* dlfcn/tst-dlinfo.c: New file.
* dlfcn/Makefile (tests): Add tst-dlinfo. ($(objpfx)tst-dlinfo): New target. * dlfcn/dlinfo.c: New file. * dlfcn/Makefile (libdl-routines): Add it. * dlfcn/Versions (libdl: GLIBC_2.3.3): Add dlinfo. * dlfcn/dlfcn.h [__USE_GNU]: Declare dlinfo. [__USE_GNU] (RTLD_DI_*): New enum constants. [__USE_GNU] (Dl_serpath, Dl_serinfo): New types. * elf/dl-load.c (cache_rpath): New inline function. (_dl_map_object): Use it. (_dl_rtld_di_serinfo): New function. * sysdeps/generic/ldsodefs.h: Declare it. * elf/Versions (ld: GLIBC_PRIVATE): Add it.
Diffstat (limited to 'dlfcn/tst-dlinfo.c')
-rw-r--r--dlfcn/tst-dlinfo.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/dlfcn/tst-dlinfo.c b/dlfcn/tst-dlinfo.c
new file mode 100644
index 0000000..70906eb
--- /dev/null
+++ b/dlfcn/tst-dlinfo.c
@@ -0,0 +1,96 @@
+/* Test for dlinfo.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <error.h>
+
+#define TEST_FUNCTION do_test ()
+
+static int
+do_test (void)
+{
+ int status = 0;
+
+ void *handle = dlopen ("glreflib1.so", RTLD_NOW);
+ if (handle == NULL)
+ error (EXIT_FAILURE, 0, "cannot load: glreflib1.so: %s", dlerror ());
+
+#define TRY(req, arg) \
+ if (dlinfo (handle, req, arg) != 0) \
+ { \
+ printf ("dlinfo failed for %s: %s\n", #req, dlerror ()); \
+ status = 1; \
+ } \
+ else
+
+ struct link_map *l;
+ TRY (RTLD_DI_LINKMAP, &l)
+ {
+ if (l != handle)
+ {
+ printf ("bogus link_map? %p != %p\n", l, handle);
+ status = 1;
+ }
+ }
+
+ char origin[8192]; /* >= PATH_MAX, in theory */
+ TRY (RTLD_DI_ORIGIN, origin)
+ {
+ printf ("origin: %s\n", origin);
+ }
+
+ Dl_serinfo counts;
+ TRY (RTLD_DI_SERINFOSIZE, &counts)
+ {
+ Dl_serinfo *buf = alloca (counts.dls_size);
+ buf->dls_cnt = counts.dls_cnt;
+ buf->dls_size = counts.dls_size;
+ printf ("%u library directories\n", buf->dls_cnt);
+ TRY (RTLD_DI_SERINFO, buf)
+ {
+ if (counts.dls_cnt != buf->dls_cnt)
+ {
+ printf ("??? became %u library directories\n", buf->dls_cnt);
+ status = 1;
+ }
+ for (unsigned int i = 0; i < buf->dls_cnt; ++i)
+ printf ("\t%#02x\t%s\n",
+ buf->dls_serpath[i].dls_flags,
+ buf->dls_serpath[i].dls_name);
+ }
+ }
+
+ unsigned long int lmid = 0xdeadbeefUL;
+ if (dlinfo (handle, RTLD_DI_LMID, &lmid) != 0)
+ printf ("dlinfo refuses RTLD_DI_LMID: %s\n", dlerror ());
+ else
+ {
+ printf ("dlinfo RTLD_DI_LMID worked? %#lx\n", lmid);
+ status = lmid == 0xdeadbeefUL;
+ }
+
+#undef TRY
+ dlclose (handle);
+
+ return status;
+}
+
+#include "../test-skeleton.c"