forked from OSchip/llvm-project
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===- lib/MC/MCSectionXCOFF.cpp - XCOFF Code Section Representation ------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/MC/MCSectionXCOFF.h"
|
|
#include "llvm/MC/MCAsmInfo.h"
|
|
#include "llvm/MC/MCExpr.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace llvm;
|
|
|
|
MCSectionXCOFF::~MCSectionXCOFF() = default;
|
|
|
|
|
|
void MCSectionXCOFF::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
|
|
raw_ostream &OS,
|
|
const MCExpr *Subsection) const {
|
|
if (getKind().isText()) {
|
|
if (getMappingClass() != XCOFF::XMC_PR)
|
|
report_fatal_error("Unhandled storage-mapping class for .text csect");
|
|
|
|
OS << "\t.csect " << QualName->getName() << '\n';
|
|
return;
|
|
}
|
|
|
|
if (getKind().isReadOnly()) {
|
|
if (getMappingClass() != XCOFF::XMC_RO)
|
|
report_fatal_error("Unhandled storage-mapping class for .rodata csect.");
|
|
OS << "\t.csect " << QualName->getName() << '\n';
|
|
return;
|
|
}
|
|
|
|
if (getKind().isData()) {
|
|
switch (getMappingClass()) {
|
|
case XCOFF::XMC_RW:
|
|
case XCOFF::XMC_DS:
|
|
OS << "\t.csect " << QualName->getName() << '\n';
|
|
break;
|
|
case XCOFF::XMC_TC:
|
|
break;
|
|
case XCOFF::XMC_TC0:
|
|
OS << "\t.toc\n";
|
|
break;
|
|
default:
|
|
report_fatal_error(
|
|
"Unhandled storage-mapping class for .data csect.");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (getKind().isBSSLocal() || getKind().isCommon()) {
|
|
assert((getMappingClass() == XCOFF::XMC_RW ||
|
|
getMappingClass() == XCOFF::XMC_BS) &&
|
|
"Generated a storage-mapping class for a common/bss csect we don't "
|
|
"understand how to switch to.");
|
|
assert(getCSectType() == XCOFF::XTY_CM &&
|
|
"wrong csect type for .bss csect");
|
|
// Don't have to print a directive for switching to section for commons.
|
|
// '.comm' and '.lcomm' directives for the variable will create the needed
|
|
// csect.
|
|
return;
|
|
}
|
|
|
|
report_fatal_error("Printing for this SectionKind is unimplemented.");
|
|
}
|
|
|
|
bool MCSectionXCOFF::UseCodeAlign() const { return getKind().isText(); }
|
|
|
|
bool MCSectionXCOFF::isVirtualSection() const { return XCOFF::XTY_CM == Type; }
|