On Wed, 19 Jun 2024 19:00:22 GMT, Jorn Vernee <jver...@openjdk.org> 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
>
> Jorn Vernee has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Update src/jdk.jdeps/share/classes/com/sun/tools/jnativescan/Main.java
>   
>   Co-authored-by: Maurizio Cimadamore 
> <54672762+mcimadam...@users.noreply.github.com>

I've also added a first version of the man page for the tool. I'm not every 
familiar with the JDK man pages, as I rarely use them myself, so there's 
probably things missing. Please let me know.

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PR Comment: https://git.openjdk.org/jdk/pull/19774#issuecomment-2179460047

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