commit 25958730dffe0a16f9c251a1fa317799b8419a1f
author Rafael Espindola <rafael.espindola@gmail.com> Wed Nov 24 21:57:39 2010 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Wed Nov 24 21:57:39 2010 +0000
tree a9223e455a84f95e29c73b82f114b6d3ef344857
parent 8b4e60c276fc2e7f01a07343197d3956d3526d8d

Behave a bit more like gnu as and use the symbol (instead of the section)
for any relocation to a symbol defined in a tls section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120121 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/ELFObjectWriter.cpp

diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp
index 7c322f3..3b649db 100644
--- a/lib/MC/ELFObjectWriter.cpp
+++ b/lib/MC/ELFObjectWriter.cpp
@@ -718,10 +718,17 @@
 
   const MCSectionELF &Section =
     static_cast<const MCSectionELF&>(ASymbol.getSection());
+  const SectionKind secKind = Section.getKind();
 
-  if (Section.getKind().isBSS())
+  if (secKind.isBSS())
     return NULL;
 
+  if (secKind.isThreadLocal()) {
+    if (Renamed)
+      return Renamed;
+    return &Symbol;
+  }
+
   MCSymbolRefExpr::VariantKind Kind = Target.getSymA()->getKind();
   const MCSectionELF &Sec2 =
     static_cast<const MCSectionELF&>(F.getParent()->getSection());
@@ -729,8 +736,7 @@
   if (&Sec2 != &Section &&
       (Kind == MCSymbolRefExpr::VK_PLT ||
        Kind == MCSymbolRefExpr::VK_GOTPCREL ||
-       Kind == MCSymbolRefExpr::VK_GOTOFF ||
-       Kind == MCSymbolRefExpr::VK_NTPOFF)) {
+       Kind == MCSymbolRefExpr::VK_GOTOFF)) {
     if (Renamed)
       return Renamed;
     return &Symbol;

lib/MC/MCParser/ELFAsmParser.cpp

diff --git a/lib/MC/MCParser/ELFAsmParser.cpp b/lib/MC/MCParser/ELFAsmParser.cpp
index d074ea9..42cd919 100644
--- a/lib/MC/MCParser/ELFAsmParser.cpp
+++ b/lib/MC/MCParser/ELFAsmParser.cpp
@@ -193,6 +193,14 @@
   return false;
 }
 
+static SectionKind computeSectionKind(unsigned Flags) {
+  if (Flags & MCSectionELF::SHF_EXECINSTR)
+    return SectionKind::getText();
+  if (Flags & MCSectionELF::SHF_TLS)
+    return SectionKind::getThreadData();
+  return SectionKind::getDataRel();
+}
+
 // FIXME: This is a work in progress.
 bool ELFAsmParser::ParseDirectiveSection(StringRef, SMLoc) {
   StringRef SectionName;
@@ -322,9 +330,7 @@
       return TokError("unknown section type");
   }
 
-  SectionKind Kind = (Flags & MCSectionELF::SHF_EXECINSTR)
-                     ? SectionKind::getText()
-                     : SectionKind::getDataRel();
+  SectionKind Kind = computeSectionKind(Flags);
   getStreamer().SwitchSection(getContext().getELFSection(SectionName, Type,
                                                          Flags, Kind, Size,
                                                          GroupName));