#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/ELF.h"
#include "llvm/Support/raw_ostream.h"
+
using namespace llvm;
MCSectionELF::~MCSectionELF() {} // anchor.
return false;
}
-// ShouldPrintSectionType - Only prints the section type if supported
-bool MCSectionELF::ShouldPrintSectionType(unsigned Ty) const {
- if (IsExplicit && !(Ty == SHT_NOBITS || Ty == SHT_PROGBITS))
- return false;
-
- return true;
-}
-
void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI,
raw_ostream &OS) const {
return;
}
- OS << "\t.section\t" << getSectionName();
-
+ StringRef name = getSectionName();
+ if (name.find_first_not_of("0123456789_."
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == name.npos) {
+ OS << "\t.section\t" << name;
+ } else {
+ OS << "\t.section\t\"";
+ 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 << '"';
+ }
+
// Handle the weird solaris syntax if desired.
if (MAI.usesSunStyleELFSectionSwitchSyntax() &&
- !(Flags & MCSectionELF::SHF_MERGE)) {
- if (Flags & MCSectionELF::SHF_ALLOC)
+ !(Flags & ELF::SHF_MERGE)) {
+ if (Flags & ELF::SHF_ALLOC)
OS << ",#alloc";
- if (Flags & MCSectionELF::SHF_EXECINSTR)
+ if (Flags & ELF::SHF_EXECINSTR)
OS << ",#execinstr";
- if (Flags & MCSectionELF::SHF_WRITE)
+ if (Flags & ELF::SHF_WRITE)
OS << ",#write";
- if (Flags & MCSectionELF::SHF_TLS)
+ if (Flags & ELF::SHF_TLS)
OS << ",#tls";
OS << '\n';
return;
}
OS << ",\"";
- if (Flags & MCSectionELF::SHF_ALLOC)
+ if (Flags & ELF::SHF_ALLOC)
OS << 'a';
- if (Flags & MCSectionELF::SHF_EXECINSTR)
+ if (Flags & ELF::SHF_EXECINSTR)
OS << 'x';
- if (Flags & MCSectionELF::SHF_WRITE)
+ if (Flags & ELF::SHF_GROUP)
+ OS << 'G';
+ if (Flags & ELF::SHF_WRITE)
OS << 'w';
- if (Flags & MCSectionELF::SHF_MERGE)
+ if (Flags & ELF::SHF_MERGE)
OS << 'M';
- if (Flags & MCSectionELF::SHF_STRINGS)
+ if (Flags & ELF::SHF_STRINGS)
OS << 'S';
- if (Flags & MCSectionELF::SHF_TLS)
+ if (Flags & ELF::SHF_TLS)
OS << 'T';
// If there are target-specific flags, print them.
- if (Flags & MCSectionELF::XCORE_SHF_CP_SECTION)
+ if (Flags & ELF::XCORE_SHF_CP_SECTION)
OS << 'c';
- if (Flags & MCSectionELF::XCORE_SHF_DP_SECTION)
+ if (Flags & ELF::XCORE_SHF_DP_SECTION)
OS << 'd';
OS << '"';
- if (ShouldPrintSectionType(Type)) {
- OS << ',';
-
- // If comment string is '@', e.g. as on ARM - use '%' instead
- if (MAI.getCommentString()[0] == '@')
- OS << '%';
- else
- OS << '@';
-
- if (Type == MCSectionELF::SHT_INIT_ARRAY)
- OS << "init_array";
- else if (Type == MCSectionELF::SHT_FINI_ARRAY)
- OS << "fini_array";
- else if (Type == MCSectionELF::SHT_PREINIT_ARRAY)
- OS << "preinit_array";
- else if (Type == MCSectionELF::SHT_NOBITS)
- OS << "nobits";
- else if (Type == MCSectionELF::SHT_PROGBITS)
- OS << "progbits";
-
- if (EntrySize) {
- OS << "," << EntrySize;
- }
+ OS << ',';
+
+ // If comment string is '@', e.g. as on ARM - use '%' instead
+ if (MAI.getCommentString()[0] == '@')
+ OS << '%';
+ else
+ OS << '@';
+
+ if (Type == ELF::SHT_INIT_ARRAY)
+ OS << "init_array";
+ else if (Type == ELF::SHT_FINI_ARRAY)
+ OS << "fini_array";
+ else if (Type == ELF::SHT_PREINIT_ARRAY)
+ OS << "preinit_array";
+ else if (Type == ELF::SHT_NOBITS)
+ OS << "nobits";
+ else if (Type == ELF::SHT_NOTE)
+ OS << "note";
+ else if (Type == ELF::SHT_PROGBITS)
+ OS << "progbits";
+
+ if (EntrySize) {
+ assert(Flags & ELF::SHF_MERGE);
+ OS << "," << EntrySize;
}
-
+
+ if (Flags & ELF::SHF_GROUP)
+ OS << "," << Group->getName() << ",comdat";
OS << '\n';
}
bool MCSectionELF::UseCodeAlign() const {
- return getFlags() & MCSectionELF::SHF_EXECINSTR;
+ return getFlags() & ELF::SHF_EXECINSTR;
}
-// HasCommonSymbols - True if this section holds common symbols, this is
-// indicated on the ELF object file by a symbol with SHN_COMMON section
-// header index.
-bool MCSectionELF::HasCommonSymbols() const {
-
- if (StringRef(SectionName).startswith(".gnu.linkonce."))
- return true;
-
- return false;
+bool MCSectionELF::isVirtualSection() const {
+ return getType() == ELF::SHT_NOBITS;
}
unsigned MCSectionELF::DetermineEntrySize(SectionKind Kind) {