938c5031ab
Summary: This is a fixed-up version of D21612, to address failure identified post-commit. Original commit description: 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). Fixes include: - Gating XRay build to only Linux x86_64 and with the right dependencies in case it is the only library being built - Including <cstddef> to fix std::size_t issue Reviewers: kcc, rnk, echristo Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D22611 llvm-svn: 276251
43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
//===-- xray_interface_internal.h -------------------------------*- 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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// This file is a part of XRay, a dynamic runtime instrumentation system.
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//
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// Implementation of the API functions. See also include/xray/xray_interface.h.
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//
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//===----------------------------------------------------------------------===//
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#ifndef XRAY_INTERFACE_INTERNAL_H
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#define XRAY_INTERFACE_INTERNAL_H
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#include "xray/xray_interface.h"
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#include <cstddef>
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#include <cstdint>
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extern "C" {
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struct XRaySledEntry {
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uint64_t Address;
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uint64_t Function;
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unsigned char Kind;
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unsigned char AlwaysInstrument;
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unsigned char Padding[14]; // Need 32 bytes
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};
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}
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namespace __xray {
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struct XRaySledMap {
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const XRaySledEntry *Sleds;
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size_t Entries;
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};
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} // namespace __xray
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#endif
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