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-rw-r--r--development/ldso/deepbind/lib.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/development/ldso/deepbind/lib.c b/development/ldso/deepbind/lib.c
new file mode 100644
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--- /dev/null
+++ b/development/ldso/deepbind/lib.c
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+#define _GNU_SOURCE
+#include <dlfcn.h>
+#include <stdio.h>
+
+#ifndef NAME
+#define NAME ""
+#endif
+
+void test() {
+ puts(NAME ":test()");
+
+ // Lookup next symbol from the libraries scope, which will search only in the
+ // libraries LOCAL scope, starting from the next object after the current one.
+ (void)dlsym(RTLD_NEXT, "next_lib" NAME);
+
+ // Global lookup from the libraries scope, which will search libraries in the
+ // GLOBAL scope and the libraries LOCAL scope. The order in which the scopes
+ // are searched depends on whether the library was loaded (a) with DEEPBIND or
+ // (b) not. whether this library was loaded with DEEPBIND). In the first case,
+ // the LOCAL scope is searched first, where in the latter, the GLOBAL scope is
+ // searched first.
+ (void)dlsym(RTLD_DEFAULT, "default_lib" NAME);
+}