rules_graalvm

Shared libraries with GraalVM and Bazel

GraalVM can build native shared libraries from Java or polyglot code. This functionality is integrated with these rules, via the shared_library target attribute on native_image:

load("@rules_graalvm//:defs.bzl", "native_image")

java_library(
    name = "example",
    srcs = ["..."],
)

native_image(
    name = "some_name",
    shared_library = True,
    deps = [
        ":example",
    ],
)

How main_class works with shared libraries

Even when building a shared library, GraalVM typically needs a main_class. Instead of becoming a runnable entrypoint, the main_class is used by the Native Image compiler as the starting point for points-to analysis and code gen.

Alternatively, the @CEntryPoint API can be used to define library entrypoints. See here for more information.

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