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gavinray • last Sunday at 8:08 PM • 2 replies • view on HN

This article specifically discusses calling external C ABI libraries via the FFM API.

GraalVM is for compiling JVM bytecode to native, architecture-specific binaries.

FFM is like "[DllImport]" in .NET, or "extern" definitions in other languages.

The article shows how to auto-generate JVM bindings from C headers, and then allocate managed memory + interact with externally linked libs via the FFM API passing along said managed memory.

Replies

fniephaus • last Sunday at 8:50 PM

BTW: We (the GraalVM team) maintain a full-blown LLVM bitcode runtime that can be embedded in Spring or any other JVM application and compiled to native: https://github.com/oracle/graal/tree/master/sulong

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namegulf • last Monday at 2:13 AM

Don't we have JNI for that?