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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
29 lines
795 B
C++
29 lines
795 B
C++
//===-- llvm/BinaryFormat/XCOFF.cpp - The XCOFF file format -----*- 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/BinaryFormat/XCOFF.h"
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using namespace llvm;
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StringRef XCOFF::getMappingClassString(XCOFF::StorageMappingClass SMC) {
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switch (SMC) {
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case XCOFF::XMC_DS:
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return "DS";
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case XCOFF::XMC_RW:
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return "RW";
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case XCOFF::XMC_PR:
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return "PR";
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case XCOFF::XMC_TC0:
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return "TC0";
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case XCOFF::XMC_BS:
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return "BS";
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default:
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report_fatal_error("Unhandled storage-mapping class.");
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}
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}
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