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Add Linux dynamic library checks using ldd/LD_DEBUG
#1718
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hayleycall
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Mar 17, 2022
ghost
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Add support for detecting for missing dynamic libraries on Linux, and extend the existing CLI tool.
This uses the
lddtool and theLD_DEBUGenvironment variable to enableld.sodebug logging. We could replace the use oflddwithLD_TRACE_LOADED_OBJECTSand target invocation, but I think the presence oflddis a safe assumption.Integration tested with the
linux-libfuzzer-dlopenandlinux-libfuzzer-linked-libraryexample binaries. Verified that the CLI tool works as expected with 0, 1, or many missing shared libraries, both when linking at process startup or loading at runtime.Toward #1706.