On Tue, 18 Jun 2024 16:30:37 GMT, Jorn Vernee <[email protected]> wrote:
> This PR adds a new JDK tool, called `jnativescan`, that can be used to find
> code that accesses native functionality. Currently this includes `native`
> method declarations, and methods marked with `@Restricted`.
>
> The tool accepts a list of class path and module path entries through
> `--class-path` and `--module-path`, and a set of root modules through
> `--add-modules`, as well as an optional target release with `--release`.
>
> The default mode is for the tool to report all uses of `@Restricted` methods,
> and `native` method declaration in a tree-like structure:
>
>
> app.jar (ALL-UNNAMED):
> main.Main:
> main.Main::main(String[])void references restricted methods:
> java.lang.foreign.MemorySegment::reinterpret(long)MemorySegment
> main.Main::m()void is a native method declaration
>
>
> The `--print-native-access` option can be used print out all the module names
> of modules doing native access in a comma separated list. For class path
> code, this will print out `ALL-UNNAMED`.
>
> Testing:
> - `langtools_jnativescan` tests.
> - Running the tool over jextract's libclang bindings, which use the FFM API,
> and thus has a lot of references to `@Restricted` methods.
> - tier 1-3
src/jdk.jdeps/share/classes/com/sun/tools/jnativescan/RestrictedMethodFinder.java
line 43:
> 41: import java.util.*;
> 42:
> 43: class RestrictedMethodFinder {
The name of this is a bit confusing as this class looks for both restricted
methods and JNI decls
src/jdk.jdeps/share/classes/com/sun/tools/jnativescan/RestrictedMethodFinder.java
line 48:
> 46: // see
> make/langtools/src/classes/build/tools/symbolgenerator/CreateSymbols.java
> 47: private static final String RESTRICTED_NAME =
> "Ljdk/internal/javac/Restricted+Annotation;";
> 48: private static final List<String> RESTRICTED_MODULES =
> List.of("java.base");
unused?
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/19774#discussion_r1646536647
PR Review Comment: https://git.openjdk.org/jdk/pull/19774#discussion_r1646535286
