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[JNI][Gandiva] LLVM generated code can't access some system functions on certain platforms #657

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lriggs opened this issue Mar 7, 2025 · 0 comments · May be fixed by #658
Open

[JNI][Gandiva] LLVM generated code can't access some system functions on certain platforms #657

lriggs opened this issue Mar 7, 2025 · 0 comments · May be fixed by #658
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lriggs commented Mar 7, 2025 •
edited by kou
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Describe the bug, including details regarding any error messages, version, and platform.

When linux loads libraries there are different options for symbols visibility like: RTLD_LOCAL, RTLD_GLOBAL. Default in Java is RTLD_LOCAL which makes all symbols inside Gandiva library only visible to the Gandiva library.

The problem is when LLVM compiles code and loads it into Java process that code won't be able to find any symbols imported by Gandiva. One example is 'sinhl' from libgcc which causes sinh function to fail when it is present in SQL query executed by Dremio using Gandiva engine. By importing JNA package we can control how to load Gandiva library and set Global symbol visibility.

See also: apache/arrow#40839
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GH-657: Set JNA library loading symbol visibility lriggs/arrow-java
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