Disable RTLD_DEEPBIND when compiled under AddressSanitizer

bin/named/unix/dlz_dlopen_driver.c

@@ -257,7 +257,7 @@ dlopen_dlz_create(const char *dlzname, unsigned int argc, char *argv[],
 	/* Open the library */
 	dlopen_flags = RTLD_NOW|RTLD_GLOBAL;
 
-#ifdef RTLD_DEEPBIND
+#if defined(RTLD_DEEPBIND) && !__ADDRESS_SANITIZER__
 	/*
 	 * If RTLD_DEEPBIND is available then use it. This can avoid
 	 * issues with a module using a different version of a system

lib/dns/dyndb.c

@@ -133,7 +133,7 @@ load_library(isc_mem_t *mctx, const char *filename, const char *instname,
 		      instname, filename);
 
 	flags = RTLD_NOW|RTLD_LOCAL;
-#ifdef RTLD_DEEPBIND
+#if defined(RTLD_DEEPBIND) && !__ADDRESS_SANITIZER__
 	flags |= RTLD_DEEPBIND;
 #endif
 

lib/ns/hooks.c

@@ -109,7 +109,7 @@ load_plugin(isc_mem_t *mctx, const char *modpath, ns_plugin_t **pluginp) {
 	REQUIRE(pluginp != NULL && *pluginp == NULL);
 
 	flags = RTLD_LAZY | RTLD_LOCAL;
-#ifdef RTLD_DEEPBIND
+#if defined(RTLD_DEEPBIND) && !__ADDRESS_SANITIZER__
 	flags |= RTLD_DEEPBIND;
 #endif