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-rw-r--r--contrib/llvm/lib/MC/MCSectionELF.cpp121
1 files changed, 58 insertions, 63 deletions
diff --git a/contrib/llvm/lib/MC/MCSectionELF.cpp b/contrib/llvm/lib/MC/MCSectionELF.cpp
index a7599de..d32aea1 100644
--- a/contrib/llvm/lib/MC/MCSectionELF.cpp
+++ b/contrib/llvm/lib/MC/MCSectionELF.cpp
@@ -11,7 +11,9 @@
#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.
@@ -29,14 +31,6 @@ bool MCSectionELF::ShouldOmitSectionDirective(StringRef Name,
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 {
@@ -49,87 +43,88 @@ void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI,
// 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 (getKind().isMergeable1ByteCString()) {
- OS << ",1";
- } else if (getKind().isMergeable2ByteCString()) {
- OS << ",2";
- } else if (getKind().isMergeable4ByteCString() ||
- getKind().isMergeableConst4()) {
- OS << ",4";
- } else if (getKind().isMergeableConst8()) {
- OS << ",8";
- } else if (getKind().isMergeableConst16()) {
- OS << ",16";
- }
+ 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';
}
-// 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::UseCodeAlign() const {
+ return getFlags() & ELF::SHF_EXECINSTR;
}
+bool MCSectionELF::isVirtualSection() const {
+ return getType() == ELF::SHT_NOBITS;
+}
+unsigned MCSectionELF::DetermineEntrySize(SectionKind Kind) {
+ if (Kind.isMergeable1ByteCString()) return 1;
+ if (Kind.isMergeable2ByteCString()) return 2;
+ if (Kind.isMergeable4ByteCString()) return 4;
+ if (Kind.isMergeableConst4()) return 4;
+ if (Kind.isMergeableConst8()) return 8;
+ if (Kind.isMergeableConst16()) return 16;
+ return 0;
+}
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