Add permitted_when_isolated_path to linker namespaces
The permitted_when_isolated_path is a way to white-list
directories not present in search-path. It is ignored for
not isolated namespaces.
Bug: http://b/25853516
Bug: http://b/22548808
Change-Id: Ib1538037268eea69323ea49968a34a4a1d1938a5
diff --git a/libc/include/android/dlext.h b/libc/include/android/dlext.h
index ed9a3b9..7979c43 100644
--- a/libc/include/android/dlext.h
+++ b/libc/include/android/dlext.h
@@ -152,16 +152,20 @@
* 2. In directories specified by DT_RUNPATH of the "needed by" binary.
* 3. deault_library_path (This of this as namespace-local default library path)
*
- * When is_isolated is true the resulted namespace requires all of the libraries
- * to be on the search path; the search_path is ld_library_path:default_library_path.
+ * When is_isolated is true the resulting namespace requires all of the libraries
+ * to be on the search path or under the permitted_when_isolated_path; the search_path is
+ * ld_library_path:default_library_path. Note that the permitted_when_isolated_path path
+ * is not part of the search_path and does not affect the search order. It is a way
+ * to allow loading libraries from specific locations when using absolute path.
*
- * If a library or any of its dependencies are outside of the search path and not
- * part of the public namespace dlopen will fail.
+ * If a library or any of its dependencies are outside of the permitted_when_isolated_path
+ * and search_path, and it is not part of the public namespace dlopen will fail.
*/
extern struct android_namespace_t* android_create_namespace(const char* name,
const char* ld_library_path,
const char* default_library_path,
- bool is_isolated);
+ bool is_isolated,
+ const char* permitted_when_isolated_path);
__END_DECLS