Make the big switch: Change MCSectionMachO to represent a section *semantically*

instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index 0aed948d30d..7dcca7bd5c5 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -222,7 +222,9 @@ void MCAsmStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
   OS << ".zerofill ";
   
   // This is a mach-o specific directive.
-  OS << '"' << ((MCSectionMachO*)Section)->getName() << '"';
+  const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
+  OS << '"' << MOSection->getSegmentName() << ","
+     << MOSection->getSectionName() << '"';
   
   
   if (Symbol != NULL) {