1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
| //===- lib/MC/MCSectionWasm.cpp - Wasm 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/MCSectionWasm.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
// Decides whether a '.section' directive
// should be printed before the section name.
bool MCSectionWasm::shouldOmitSectionDirective(StringRef Name,
const MCAsmInfo &MAI) const {
return MAI.shouldOmitSectionDirective(Name);
}
static void printName(raw_ostream &OS, StringRef Name) {
if (Name.find_first_not_of("0123456789_."
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
OS << Name;
return;
}
OS << '"';
for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
if (*B == '"') // Unquoted "
OS << "\\\"";
else if (*B != '\\') // Neither " or backslash
OS << *B;
else if (B + 1 == E) // Trailing backslash
OS << "\\\\";
else {
OS << B[0] << B[1]; // Quoted character
++B;
}
}
OS << '"';
}
void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
raw_ostream &OS,
const MCExpr *Subsection) const {
if (shouldOmitSectionDirective(SectionName, MAI)) {
OS << '\t' << getSectionName();
if (Subsection) {
OS << '\t';
Subsection->print(OS, &MAI);
}
OS << '\n';
return;
}
OS << "\t.section\t";
printName(OS, getSectionName());
OS << ",\"";
if (IsPassive)
OS << "passive";
OS << '"';
OS << ',';
// If comment string is '@', e.g. as on ARM - use '%' instead
if (MAI.getCommentString()[0] == '@')
OS << '%';
else
OS << '@';
// TODO: Print section type.
if (isUnique())
OS << ",unique," << UniqueID;
OS << '\n';
if (Subsection) {
OS << "\t.subsection\t";
Subsection->print(OS, &MAI);
OS << '\n';
}
}
bool MCSectionWasm::UseCodeAlign() const { return false; }
bool MCSectionWasm::isVirtualSection() const { return false; }
|