Changes in directory llvm/lib/Target/CBackend:
CBackend.cpp updated: 1.313 -> 1.314
---
Log message:
* PIC codegen for X86/Linux has been implemented
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)
---
Diffs of the changes: (+12 -0)
CBackend.cpp | 12 ++++++++++++
1 files changed, 12 insertions(+)
Index: llvm/lib/Target/CBackend/CBackend.cpp
diff -u llvm/lib/Target/CBackend/CBackend.cpp:1.313
llvm/lib/Target/CBackend/CBackend.cpp:1.314
--- llvm/lib/Target/CBackend/CBackend.cpp:1.313 Fri Jan 12 01:05:13 2007
+++ llvm/lib/Target/CBackend/CBackend.cpp Fri Jan 12 13:20:47 2007
@@ -1290,6 +1290,11 @@
<< "#define __ATTRIBUTE_WEAK__\n"
<< "#endif\n\n";
+ // Add hidden visibility support. FIXME: APPLE_CC?
+ Out << "#if defined(__GNUC__)\n"
+ << "#define __HIDDEN__ __attribute__((visibility(\"hidden\")))\n"
+ << "#endif\n\n";
+
// Define NaN and Inf as GCC builtins if using GCC, as 0 otherwise
// From the GCC documentation:
//
@@ -1500,6 +1505,8 @@
Out << " __ATTRIBUTE_CTOR__";
if (StaticDtors.count(I))
Out << " __ATTRIBUTE_DTOR__";
+ if (I->hasHiddenVisibility())
+ Out << " __HIDDEN__";
if (I->hasName() && I->getName()[0] == 1)
Out << " LLVM_ASM(\"" << I->getName().c_str()+1 << "\")";
@@ -1531,6 +1538,8 @@
Out << " __ATTRIBUTE_WEAK__";
else if (I->hasExternalWeakLinkage())
Out << " __EXTERNAL_WEAK__";
+ if (I->hasHiddenVisibility())
+ Out << " __HIDDEN__";
Out << ";\n";
}
}
@@ -1559,6 +1568,9 @@
else if (I->hasWeakLinkage())
Out << " __ATTRIBUTE_WEAK__";
+ if (I->hasHiddenVisibility())
+ Out << " __HIDDEN__";
+
// If the initializer is not null, emit the initializer. If it is
null,
// we try to avoid emitting large amounts of zeros. The problem with
// this, however, occurs when the variable has weak linkage. In this
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