1 //===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #include "llvm/MC/MCSectionWasm.h"
10 #include "llvm/MC/MCAsmInfo.h"
11 #include "llvm/MC/MCExpr.h"
12 #include "llvm/MC/MCSymbol.h"
13 #include "llvm/Support/raw_ostream.h"
17 MCSectionWasm::~MCSectionWasm() {} // anchor.
19 // Decides whether a '.section' directive
20 // should be printed before the section name.
21 bool MCSectionWasm::ShouldOmitSectionDirective(StringRef Name,
22 const MCAsmInfo &MAI) const {
23 return MAI.shouldOmitSectionDirective(Name);
26 static void printName(raw_ostream &OS, StringRef Name) {
27 if (Name.find_first_not_of("0123456789_."
28 "abcdefghijklmnopqrstuvwxyz"
29 "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
34 for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
35 if (*B == '"') // Unquoted "
37 else if (*B != '\\') // Neither " or backslash
39 else if (B + 1 == E) // Trailing backslash
42 OS << B[0] << B[1]; // Quoted character
49 void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
51 const MCExpr *Subsection) const {
53 if (ShouldOmitSectionDirective(SectionName, MAI)) {
54 OS << '\t' << getSectionName();
57 Subsection->print(OS, &MAI);
64 printName(OS, getSectionName());
67 // TODO: Print section flags.
73 // If comment string is '@', e.g. as on ARM - use '%' instead
74 if (MAI.getCommentString()[0] == '@')
79 // TODO: Print section type.
82 OS << ",unique," << UniqueID;
87 OS << "\t.subsection\t";
88 Subsection->print(OS, &MAI);
93 bool MCSectionWasm::UseCodeAlign() const { return false; }
95 bool MCSectionWasm::isVirtualSection() const { return false; }