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e1c81d10d7
Summary: This patch implements the initialisation and patching routines for the XRay runtime, along with the necessary trampolines for function entry/exit handling. For now we only define the basic hooks for allowing an implementation to define a handler that gets run on function entry/exit. We expose a minimal API for controlling the behaviour of the runtime (patching, cleanup, and setting the handler to invoke when instrumenting). Depends on D19904 Reviewers: echristo, kcc, rnk Subscribers: rnk, mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D21612 llvm-svn: 276117
19 lines
636 B
C++
19 lines
636 B
C++
//===-- xray_flags.inc ------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// XRay runtime flags.
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//
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//===----------------------------------------------------------------------===//
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#ifndef XRAY_FLAG
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#error "Define XRAY_FLAG prior to including this file!"
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#endif
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XRAY_FLAG(bool, patch_premain, true,
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"Whether to patch instrumentation points before main.")
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