diff options
| author | Erich Keane <erich.keane@intel.com> | 2017-09-26 23:42:34 +0000 |
|---|---|---|
| committer | Erich Keane <erich.keane@intel.com> | 2017-09-26 23:42:34 +0000 |
| commit | 2dab9ecc4a8eba7b83700673007d3ce340e015d7 (patch) | |
| tree | 6b91891b5beedad3e06c93a633a9157b1b442486 /lib/CodeGen/CodeGenModule.cpp | |
| parent | 13d3da81277f296969206cbfe2dc5191391f49c2 (diff) | |
Emit section information for extern variables.
Currently, if _attribute_((section())) is used for extern variables,
section information is not emitted in generated IR when the variables are used.
This is expected since sections are not generated for external linkage objects.
However NiosII requires this information as it uses special GP-relative accesses
for any objects that use attribute section (.sdata). GCC keeps this attribute in
middle-end.
This change emits the section information for all targets.
Patch By: Elizabeth Andrews
Differential Revision:https://reviews.llvm.org/D36487
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@314262 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | lib/CodeGen/CodeGenModule.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp index 03a3e36b83..89185c8951 100644 --- a/lib/CodeGen/CodeGenModule.cpp +++ b/lib/CodeGen/CodeGenModule.cpp @@ -2432,6 +2432,12 @@ CodeGenModule::GetOrCreateLLVMGlobal(StringRef MangledName, EmitGlobalVarDefinition(D); } + // Emit section information for extern variables. + if (D->hasExternalStorage()) { + if (const SectionAttr *SA = D->getAttr<SectionAttr>()) + GV->setSection(SA->getName()); + } + // Handle XCore specific ABI requirements. if (getTriple().getArch() == llvm::Triple::xcore && D->getLanguageLinkage() == CLanguageLinkage && |