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Set LIBFFI_TMPDIR at startup (#80651) #80699

Merged
merged 2 commits into from
Nov 15, 2021
Merged

Set LIBFFI_TMPDIR at startup (#80651) #80699

merged 2 commits into from
Nov 15, 2021

Commits on Nov 15, 2021

  1. Set LIBFFI_TMPDIR at startup (elastic#80651) 

    Today if `libffi` cannot allocate pages of memory which are both
writeable and executable then it will attempt to write code to a
temporary file. Elasticsearch configures itself a suitable temporary
directory for use by JNA but by default `libffi` won't find this
directory and will try various other places. In certain configurations,
none of the other places that `libffi` tries are suitable. With older
versions of JNA this would result in a `SIGSEGV`; since elastic#80617 the JVM
will exit with an exception.

With this commit we use the `LIBFFI_TMPDIR` environment variable to
configure `libffi` to use the same directory as JNA for its temporary
files if they are needed.

Closes elastic#18272
Closes elastic#73309
Closes elastic#74545
Closes elastic#77014
Closes elastic#77053
Relates elastic#77285

Co-authored-by: Rory Hunter <[email protected]>
    @DaveCTurner @pugnascotia
    DaveCTurner and pugnascotia committed Nov 15, 2021
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  2. Fix incorrect SSL usage

    @pugnascotia
    pugnascotia committed Nov 15, 2021
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