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authorUlrich Drepper <drepper@redhat.com>2005-03-03 08:28:23 +0000
committerUlrich Drepper <drepper@redhat.com>2005-03-03 08:28:23 +0000
commit2e2b6e2618b515340650b2f60d84112840df7570 (patch)
tree8fb6568328038e782fa6bd05423f9b8a36a2338c /elf
parentfab0abb44691c24b2253c3f65897b1947da7fba4 (diff)
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2005-03-01 H.J. Lu <hongjiu.lu@intel.com> [BZ #776] * iconv/iconvconfig.c: Fix comment for the output file. (write_output): Clear padding in header. 2005-03-03 Ulrich Drepper <drepper@redhat.com> * elf/dl-close.c (_dl_close): Don't try to set up new searchpath if the loader is closed. Fixes unload3. * elf/tst-global1.c: New file. * elf/Makefile (tests): Add tst-global1. 2005-03-03 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run unload3 test. * elf/unload3.c: New test. * elf/unload3mod1.c: New file. * elf/unload3mod2.c: New file. * elf/unload3mod3.c: New file. * elf/unload3mod4.c: New file.
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-close.c30
-rw-r--r--elf/tst-global1.c36
-rw-r--r--elf/unload3.c41
-rw-r--r--elf/unload3mod1.c1
-rw-r--r--elf/unload3mod2.c1
-rw-r--r--elf/unload3mod3.c8
-rw-r--r--elf/unload3mod4.c11
7 files changed, 98 insertions, 30 deletions
diff --git a/elf/dl-close.c b/elf/dl-close.c
index eb5e805..7ad486a 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -351,36 +351,6 @@ _dl_close (void *_map)
}
assert (found);
}
- else if (new_opencount[i] != 0 && imap->l_type == lt_loaded
- && imap->l_searchlist.r_list == NULL
- && imap->l_initfini != NULL)
- {
- /* The object is still used. But the object we are
- unloading right now is responsible for loading it. If
- the current object does not have it's own scope yet we
- have to create one. This has to be done before running
- the finalizers.
-
- To do this count the number of dependencies. */
- unsigned int cnt;
- for (cnt = 1; imap->l_initfini[cnt] != NULL; ++cnt)
- if (imap->l_initfini[cnt]->l_idx >= i
- && imap->l_initfini[cnt]->l_idx < nopencount)
- ++new_opencount[imap->l_initfini[cnt]->l_idx];
- else
- ++imap->l_initfini[cnt]->l_opencount;
-
- /* We simply reuse the l_initfini list. */
- imap->l_searchlist.r_list = &imap->l_initfini[cnt + 1];
- imap->l_searchlist.r_nlist = cnt;
-
- for (cnt = 0; imap->l_scope[cnt] != NULL; ++cnt)
- if (imap->l_scope[cnt] == &map->l_searchlist)
- {
- imap->l_scope[cnt] = &imap->l_searchlist;
- break;
- }
- }
/* Store the new l_opencount value. */
imap->l_opencount = new_opencount[i];
diff --git a/elf/tst-global1.c b/elf/tst-global1.c
new file mode 100644
index 0000000..1611b51
--- /dev/null
+++ b/elf/tst-global1.c
@@ -0,0 +1,36 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+ void *h1 = dlopen ("$ORIGIN/testobj6.so", RTLD_GLOBAL|RTLD_LAZY);
+ if (h1 == NULL)
+ {
+ puts ("cannot open testobj6");
+ return 1;
+ }
+
+ void *h2 = dlopen ("$ORIGIN/testobj2.so",
+ RTLD_GLOBAL|RTLD_DEEPBIND|RTLD_LAZY);
+ if (h2 == NULL)
+ {
+ puts ("cannot open testobj2");
+ return 1;
+ }
+
+ dlclose (h1);
+
+ void (*f) (void) = dlsym (h2, "p");
+ if (f == NULL)
+ {
+ puts ("cannot find p");
+ return 1;
+ }
+
+ f ();
+
+ dlclose (h2);
+
+ return 0;
+}
diff --git a/elf/unload3.c b/elf/unload3.c
new file mode 100644
index 0000000..6f1af70
--- /dev/null
+++ b/elf/unload3.c
@@ -0,0 +1,41 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+ void *g = dlopen ("unload3mod1.so", RTLD_GLOBAL | RTLD_NOW);
+ void *h = dlopen ("unload3mod2.so", RTLD_GLOBAL | RTLD_NOW);
+ if (g == NULL || h == NULL)
+ {
+ printf ("dlopen unload3mod{1,2}.so failed: %p %p\n", g, h);
+ return 1;
+ }
+ dlclose (h);
+ dlclose (g);
+
+ g = dlopen ("unload3mod3.so", RTLD_GLOBAL | RTLD_NOW);
+ h = dlopen ("unload3mod4.so", RTLD_GLOBAL | RTLD_NOW);
+ if (g == NULL || h == NULL)
+ {
+ printf ("dlopen unload3mod{3,4}.so failed: %p %p\n", g, h);
+ return 1;
+ }
+
+ int (*fn) (int);
+ fn = dlsym (h, "bar");
+ if (fn == NULL)
+ {
+ puts ("dlsym failed");
+ return 1;
+ }
+
+ int val = fn (16);
+ if (val != 24)
+ {
+ printf ("bar returned %d != 24\n", val);
+ return 1;
+ }
+
+ return 0;
+}
diff --git a/elf/unload3mod1.c b/elf/unload3mod1.c
new file mode 100644
index 0000000..e886b11
--- /dev/null
+++ b/elf/unload3mod1.c
@@ -0,0 +1 @@
+int dummy1;
diff --git a/elf/unload3mod2.c b/elf/unload3mod2.c
new file mode 100644
index 0000000..03252a5
--- /dev/null
+++ b/elf/unload3mod2.c
@@ -0,0 +1 @@
+int dummy2;
diff --git a/elf/unload3mod3.c b/elf/unload3mod3.c
new file mode 100644
index 0000000..046022c
--- /dev/null
+++ b/elf/unload3mod3.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int
+foo (int x)
+{
+ puts ("foo");
+ return x * 2;
+}
diff --git a/elf/unload3mod4.c b/elf/unload3mod4.c
new file mode 100644
index 0000000..4586ff7
--- /dev/null
+++ b/elf/unload3mod4.c
@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int
+bar (int x)
+{
+ puts ("bar");
+ fflush (stdout);
+ x = foo (x - 4);
+ puts ("bar after foo");
+ return x;
+}