[PATCH] D30630: [XRay][compiler-rt] Runtime changes to support custom event logging

[Dean Michael Berris via Phabricator via llvm-commits]

dberris created this revision.
Herald added subscribers: nemanjai, mehdi_amini.
Herald added a reviewer: javed.absar.

This change implements support for the custom event logging sleds and
intrinsics at runtime. For now it only supports handling the sleds in
x86_64, with the implementations for other architectures stubbed out to
do nothing.

NOTE: Work in progress, uploaded for exposition/exploration purposes.

Depends on https://reviews.llvm.org/D27503 and https://reviews.llvm.org/D30018.


https://reviews.llvm.org/D30630

Files:
  include/xray/xray_interface.h
  lib/xray/xray_AArch64.cc
  lib/xray/xray_arm.cc
  lib/xray/xray_fdr_logging.cc
  lib/xray/xray_interface.cc
  lib/xray/xray_interface_internal.h
  lib/xray/xray_mips.cc
  lib/xray/xray_mips64.cc
  lib/xray/xray_powerpc64.cc
  lib/xray/xray_trampoline_x86_64.S
  lib/xray/xray_x86_64.cc
  test/xray/TestCases/Linux/custom-event-logging.cc

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