[all-commits] [llvm/llvm-project] ced95a: [scudo] Descriptive Fucshia errors

[Caslyn Tonelli via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ced95a5765f5743761e72685ecc944dde990305a
      https://github.com/llvm/llvm-project/commit/ced95a5765f5743761e72685ecc944dde990305a
  Author: Caslyn Tonelli <caslyn at google.com>
  Date:   2023-04-17 (Mon, 17 Apr 2023)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/fuchsia.cpp

  Log Message:
  -----------
  [scudo] Descriptive Fucshia errors

`dieOnError` in fuchsia.cpp takes the syscall name, status code, and
relevant size parameter to describe what failed, the reason, and size
context. Several different Fuchsia syscalls can fail underlying Scudo's
map operation and gets hidden if using `dieOnMapUnmapError`.

The reason for this change is to provide an error status code and more
helpful information to debug failures.