8355047: SA fails to discover JDK libraries for Linux core files

[djelinski]

Linux core files contain absolute paths to all libraries that were loaded in memory at the time the core dump was taken. If the file paths do not match the ones present on the machine where SA runs, loading the core file requires setting SA_ALTROOT and copying additional binaries (ld-linux, possibly others).

We can do better than that; we know the path to the executable file on the SA machine, and the core dump contains the path to the executable file on the original machine. Based on the two locations, we can rewrite the paths in the core dump to corresponding paths on the SA machine.

The code added in this PR reads all file paths in the NT_FILE section, and tries to match them to the executable file name passed on the command line with the --exe parameter. Once a matching path is found, the common suffix is stripped, and the differing prefixes are used to remap the paths to other JDK files.

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Progress

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Issue

• JDK-8355047: SA fails to discover JDK libraries for Linux core files (Bug - P4)

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