Replace duplicated '16' with a named constant.

Thanks to Michael Spencer for the suggestion.

llvm-svn: 286462

2 files changed, 4 insertions, 3 deletions

diff --git a/lld/ELF/SyntheticSections.cpp b/lld/ELF/SyntheticSections.cpp
index 51e0fc45d44..2e2fc7331bd 100644
--- a/lld/ELF/SyntheticSections.cpp
+++ b/lld/ELF/SyntheticSections.cpp
@@ -217,7 +217,7 @@ BuildIdSection<ELFT>::BuildIdSection(size_t HashSize)
       HashSize(HashSize) {
   this->Live = true;
 
-  Buf.resize(16 + HashSize);
+  Buf.resize(HeaderSize + HashSize);
   const endianness E = ELFT::TargetEndianness;
   write32<E>(Buf.data(), 4);                   // Name size
   write32<E>(Buf.data() + 4, HashSize);        // Content size
@@ -229,8 +229,7 @@ BuildIdSection<ELFT>::BuildIdSection(size_t HashSize)
 // Returns the location of the build-id hash value in the output.
 template <class ELFT>
 uint8_t *BuildIdSection<ELFT>::getOutputLoc(uint8_t *Start) const {
-  // First 16 bytes are a header.
-  return Start + this->OutSec->Offset + this->OutSecOff + 16;
+  return Start + this->OutSec->Offset + this->OutSecOff + HeaderSize;
 }
 
 // Split one uint8 array into small pieces of uint8 arrays.
diff --git a/lld/ELF/SyntheticSections.h b/lld/ELF/SyntheticSections.h
index 4910293ae00..4e204be372a 100644
--- a/lld/ELF/SyntheticSections.h
+++ b/lld/ELF/SyntheticSections.h
@@ -95,6 +95,8 @@ protected:
               std::function<void(ArrayRef<uint8_t> Arr, uint8_t *Hash)> Hash);
 
   size_t HashSize;
+  // First 16 bytes are a header.
+  static const unsigned HeaderSize = 16;
 };
 
 template <class ELFT>