[PATCH] D29703: [XRay] [compiler-rt] Allow logging the first argument of a function call.

[Martin Pelikán via Phabricator via llvm-commits]

pelikan created this revision.
Herald added a reviewer: javed.absar.

Functions with the LOG_ARGS_ENTRY sled kind at their beginning will be handled
in a way to (optionally) pass their first call argument to your logging handler.

For practical and performance reasons, only the first argument is supported, and
only up to 64 bits.


https://reviews.llvm.org/D29703

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_trampoline_x86_64.S
  lib/xray/xray_x86_64.cc
  test/xray/TestCases/Linux/arg1-logger.cc

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