[ELF] Wrap things in `namespace lld { namespace elf {`, NFC

This makes it clear `ELF/**/*.cpp` files define things in the `lld::elf`
namespace and simplifies `elf::foo` to `foo`.

Reviewed By: atanasyan, grimar, ruiu

Differential Revision: https://reviews.llvm.org/D68323

llvm-svn: 373885

1 files changed, 9 insertions, 7 deletions

diff --git a/lld/ELF/OutputSections.cpp b/lld/ELF/OutputSections.cpp
index d6164103867..ea7c96eb676 100644
--- a/lld/ELF/OutputSections.cpp
+++ b/lld/ELF/OutputSections.cpp
@@ -27,9 +27,8 @@ using namespace llvm::object;
 using namespace llvm::support::endian;
 using namespace llvm::ELF;
 
-using namespace lld;
-using namespace lld::elf;
-
+namespace lld {
+namespace elf {
 uint8_t *Out::bufferStart;
 uint8_t Out::first;
 PhdrEntry *Out::tlsPhdr;
@@ -39,7 +38,7 @@ OutputSection *Out::preinitArray;
 OutputSection *Out::initArray;
 OutputSection *Out::finiArray;
 
-std::vector<OutputSection *> elf::outputSections;
+std::vector<OutputSection *> outputSections;
 
 uint32_t OutputSection::getPhdrFlags() const {
   uint32_t ret = 0;
@@ -226,7 +225,7 @@ static void sortByOrder(MutableArrayRef<InputSection *> in,
     in[i] = v[i].second;
 }
 
-uint64_t elf::getHeaderSize() {
+uint64_t getHeaderSize() {
   if (config->oFormatBinary)
     return 0;
   return Out::elfHeader->size + Out::programHeaders->size;
@@ -446,7 +445,7 @@ void OutputSection::sortCtorsDtors() {
 // If an input string is in the form of "foo.N" where N is a number,
 // return N. Otherwise, returns 65536, which is one greater than the
 // lowest priority.
-int elf::getPriority(StringRef s) {
+int getPriority(StringRef s) {
   size_t pos = s.rfind('.');
   if (pos == StringRef::npos)
     return 65536;
@@ -456,7 +455,7 @@ int elf::getPriority(StringRef s) {
   return v;
 }
 
-std::vector<InputSection *> elf::getInputSections(OutputSection *os) {
+std::vector<InputSection *> getInputSections(OutputSection *os) {
   std::vector<InputSection *> ret;
   for (BaseCommand *base : os->sectionCommands)
     if (auto *isd = dyn_cast<InputSectionDescription>(base))
@@ -497,3 +496,6 @@ template void OutputSection::maybeCompress<ELF32LE>();
 template void OutputSection::maybeCompress<ELF32BE>();
 template void OutputSection::maybeCompress<ELF64LE>();
 template void OutputSection::maybeCompress<ELF64BE>();
+
+} // namespace elf
+} // namespace lld