#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/raw_ostream.h"
// should be printed before the section name
bool MCSectionELF::ShouldOmitSectionDirective(StringRef Name,
const MCAsmInfo &MAI) const {
-
+
// FIXME: Does .section .bss/.data/.text work everywhere??
if (Name == ".text" || Name == ".data" ||
(Name == ".bss" && !MAI.usesELFSectionDirectiveForBSS()))
return false;
}
-void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI,
- raw_ostream &OS) const {
-
- if (ShouldOmitSectionDirective(SectionName, MAI)) {
- OS << '\t' << getSectionName() << '\n';
+static void printName(raw_ostream &OS, StringRef Name) {
+ if (Name.find_first_not_of("0123456789_."
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
+ OS << Name;
return;
}
-
- StringRef name = getSectionName();
- OS << "\t.section\t\"";
- for (const char *b = name.begin(), *e = name.end(); b < e; ++b) {
- if (*b == '"') // Unquoted "
+ 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
+ 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 << B[0] << B[1]; // Quoted character
+ ++B;
}
}
OS << '"';
+}
+
+void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI,
+ raw_ostream &OS,
+ const MCExpr *Subsection) const {
+
+ if (ShouldOmitSectionDirective(SectionName, MAI)) {
+ OS << '\t' << getSectionName();
+ if (Subsection)
+ OS << '\t' << *Subsection;
+ OS << '\n';
+ return;
+ }
+
+ OS << "\t.section\t";
+ printName(OS, getSectionName());
// Handle the weird solaris syntax if desired.
- if (MAI.usesSunStyleELFSectionSwitchSyntax() &&
+ if (MAI.usesSunStyleELFSectionSwitchSyntax() &&
!(Flags & ELF::SHF_MERGE)) {
if (Flags & ELF::SHF_ALLOC)
OS << ",#alloc";
OS << ",#execinstr";
if (Flags & ELF::SHF_WRITE)
OS << ",#write";
+ if (Flags & ELF::SHF_EXCLUDE)
+ OS << ",#exclude";
if (Flags & ELF::SHF_TLS)
OS << ",#tls";
OS << '\n';
return;
}
-
+
OS << ",\"";
if (Flags & ELF::SHF_ALLOC)
OS << 'a';
+ if (Flags & ELF::SHF_EXCLUDE)
+ OS << 'e';
if (Flags & ELF::SHF_EXECINSTR)
OS << 'x';
if (Flags & ELF::SHF_GROUP)
OS << 'S';
if (Flags & ELF::SHF_TLS)
OS << 'T';
-
+
// If there are target-specific flags, print them.
if (Flags & ELF::XCORE_SHF_CP_SECTION)
OS << 'c';
if (Flags & ELF::XCORE_SHF_DP_SECTION)
OS << 'd';
-
+
OS << '"';
OS << ',';
OS << "," << EntrySize;
}
- if (Flags & ELF::SHF_GROUP)
- OS << "," << Group->getName() << ",comdat";
+ if (Flags & ELF::SHF_GROUP) {
+ OS << ",";
+ printName(OS, Group->getName());
+ OS << ",comdat";
+ }
OS << '\n';
+
+ if (Subsection)
+ OS << "\t.subsection\t" << *Subsection << '\n';
}
bool MCSectionELF::UseCodeAlign() const {