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0561b945b9
Summary:
We are using symbols to represent label and csect interchangeably before, and that could be a problem.
There are cases we would need to add storage mapping class to the symbol if that symbol is actually the name of a csect, but it's hard for us to figure out whether that symbol is a label or csect.
This patch intend to do the following:
1. Construct a QualName (A name include the storage mapping class)
MCSymbolXCOFF for every MCSectionXCOFF.
2. Keep a pointer to that QualName inside of MCSectionXCOFF.
3. Use that QualName whenever we need a symbol refers to that
MCSectionXCOFF.
4. Adapt the snowball effect from the above changes in
XCOFFObjectWriter.cpp.
Reviewers: xingxue, DiggerLin, sfertile, daltenty, hubert.reinterpretcast
Reviewed By: DiggerLin, daltenty
Subscribers: wuzish, nemanjai, mgorny, hiraditya, kbarton, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69633
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
//===- MC/MCAsmInfoXCOFF.cpp - XCOFF asm properties ------------ *- C++ -*-===//
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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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#include "llvm/MC/MCAsmInfoXCOFF.h"
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using namespace llvm;
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void MCAsmInfoXCOFF::anchor() {}
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MCAsmInfoXCOFF::MCAsmInfoXCOFF() {
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IsLittleEndian = false;
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HasDotTypeDotSizeDirective = false;
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COMMDirectiveAlignmentIsInBytes = false;
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LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment;
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UseDotAlignForAlignment = true;
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AsciiDirective = nullptr; // not supported
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AscizDirective = nullptr; // not supported
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NeedsFunctionDescriptors = true;
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HasDotLGloblDirective = true;
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Data64bitsDirective = "\t.llong\t";
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SupportsQuotedNames = false;
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}
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bool MCAsmInfoXCOFF::isAcceptableChar(char C) const {
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// QualName is allowed for a MCSymbolXCOFF, and
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// QualName contains '[' and ']'.
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if (C == '[' || C == ']')
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return true;
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return MCAsmInfo::isAcceptableChar(C);
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}
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