commit e13c8ac5306fa2d2069f0defa932adf6aa3355bb
author Chris Lattner <sabre@nondot.org> Mon Jan 25 07:52:13 2010 +0000
committer Chris Lattner <sabre@nondot.org> Mon Jan 25 07:52:13 2010 +0000
tree 64d49704d26bb97c93e0a1b64a2cdaffa85f6d7d
parent 04a31f32f15924e6d3a9286b72602f0c45c38c37

emit the .size directive for global variables on ELF through
mcstreamer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94416 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/MCAsmStreamer.cpp

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 0698bd4..6ce040e 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -93,6 +93,7 @@
 
   virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
 
+  virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
   virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                 unsigned ByteAlignment);
 
@@ -251,6 +252,11 @@
   EmitEOL();
 }
 
+void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+  assert(MAI.hasDotTypeDotSizeDirective());
+  OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
+}
+
 void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                      unsigned ByteAlignment) {
   OS << "\t.comm\t" << *Symbol << ',' << Size;

lib/MC/MCMachOStreamer.cpp

diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index e559c65..bd93f62 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -124,6 +124,9 @@
   virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
   virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                 unsigned ByteAlignment);
+  virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+    assert(0 && "macho doesn't support this directive");
+  }
   virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
     assert(0 && "macho doesn't support this directive");
   }

lib/MC/MCNullStreamer.cpp

diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index 7c219b3..1d2b778 100644
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -38,7 +38,7 @@
     virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute){}
 
     virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
-
+    virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
     virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                   unsigned ByteAlignment) {}
     virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {}