Commits on Nov 13, 2021

1. Build musl dist artifacts with debuginfo enabled …

   Since our musl targets link to a version of musl we build and bundle
   with the targets, if users need to debug into musl or generate
   backtraces which contain parts of the musl library, they will be unable
   to do so unless we enable and ship the debug info.
   
   This patch changes our dist builds so they enabled debug info when
   building musl. This patch also includes a fix for CFI detection in
   musl's `configure` script which has been posted upstream[1].
   
   The net effect of this is that we now ship debug info for musl in those
   targets. This adds ~90kb to those artifacts but running `strip` on
   binaries produced removes all of that. For a "hello world" Rust binary
   on x86_64, the numbers are:
   
   |                        | debug | release | release + strip |
   |           -            |   -   |    -    |        -        |
   | without musl debuginfo | 507kb |  495kb  |      410kb      |
   | with musl debuginfo    | 595kb |  584kb  |      410kb      |
   
   Once stripped, the final binaries are the same size (down to the byte).
   
   [1]: https://www.openwall.com/lists/musl/2021/10/21/2

   

   wesleywiser committed Nov 13, 2021
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