b5d5813762
Adds a generic utility for creating anonymous aarch64 pointer blocks (automatically adding an edge to initialize the pointer if given an initial target). Updates the aarch64 GOTTableManager to use the utility when building GOT entries.
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
//===---- aarch64.cpp - Generic JITLink aarch64 edge kinds, utilities -----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Generic utilities for graphs representing aarch64 objects.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/JITLink/aarch64.h"
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#define DEBUG_TYPE "jitlink"
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namespace llvm {
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namespace jitlink {
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namespace aarch64 {
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const char NullPointerContent[8] = {0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00};
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const uint8_t StubContent[8] = {
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0x10, 0x00, 0x00, 0x58, // LDR x16, <literal>
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0x00, 0x02, 0x1f, 0xd6 // BR x16
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};
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const char *getEdgeKindName(Edge::Kind R) {
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switch (R) {
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case Branch26:
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return "Branch26";
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case Pointer64:
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return "Pointer64";
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case Pointer64Anon:
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return "Pointer64Anon";
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case Page21:
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return "Page21";
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case PageOffset12:
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return "PageOffset12";
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case MoveWide16:
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return "MoveWide16";
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case GOTPage21:
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return "GOTPage21";
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case GOTPageOffset12:
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return "GOTPageOffset12";
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case TLVPage21:
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return "TLVPage21";
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case TLVPageOffset12:
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return "TLVPageOffset12";
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case TLSDescPage21:
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return "TLSDescPage21";
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case TLSDescPageOffset12:
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return "TLSDescPageOffset12";
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case Delta32ToGOT:
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return "Delta32ToGOT";
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case PairedAddend:
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return "PairedAddend";
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case LDRLiteral19:
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return "LDRLiteral19";
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case Delta32:
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return "Delta32";
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case Delta64:
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return "Delta64";
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case NegDelta32:
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return "NegDelta32";
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case NegDelta64:
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return "NegDelta64";
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default:
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return getGenericEdgeKindName(static_cast<Edge::Kind>(R));
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}
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}
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} // namespace aarch64
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} // namespace jitlink
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} // namespace llvm
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