Revert r295138: Instead of a series of string operations, use snprint…

…f(). This broke buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295142 91177308-0d34-0410-b5e6-96231b3b80d8
zmyer · Feb 15, 2017 · da87ca0 · da87ca0
1 parent 7855b94
commit da87ca0
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/lib/MC/WinCOFFObjectWriter.cpp b/lib/MC/WinCOFFObjectWriter.cpp
@@ -434,8 +434,10 @@ void WinCOFFObjectWriter::SetSectionName(COFFSection &S) {
 
   uint64_t StringTableEntry = Strings.getOffset(S.Name);
   if (StringTableEntry <= Max7DecimalOffset) {
-    snprintf(S.Header.Name, sizeof(S.Header.Name), "/%" PRIu64,
-             StringTableEntry);
+    SmallVector<char, COFF::NameSize> Buffer;
+    Twine('/').concat(Twine(StringTableEntry)).toVector(Buffer);
+    assert(Buffer.size() <= COFF::NameSize && Buffer.size() >= 2);
+    std::memcpy(S.Header.Name, Buffer.data(), Buffer.size());
     return;
   }
   if (StringTableEntry <= MaxBase64Offset) {