[llvm] [SystemZ][z/OS] Implement executePostLayoutBinding for GOFFObjectWriter (PR #67868)

[Kevin P. Neal via llvm-commits]

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@@ -258,6 +699,268 @@ void GOFFObjectWriter::writeHeader() {
   OS.write_zeros(6);       // Reserved
 }
 
+void GOFFObjectWriter::writeSymbol(const GOFFSymbol &Symbol,
+                                   const MCAsmLayout &Layout) {
+  uint32_t Offset = 0;
+  uint32_t Length = 0;
+  GOFF::ESDNameSpaceId NameSpaceId = GOFF::ESD_NS_ProgramManagementBinder;
+  Flags SymbolFlags;
+  uint8_t FillByteValue = 0;
+
+  Flags BehavAttrs[10] = {};
+  auto setAmode = [&BehavAttrs](GOFF::ESDAmode Amode) {
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kpneal wrote:

Doing it this way means the code matches the documentation. For example, BehavAttrs[3] would match the documented behavioral attributes at offset "3.x".

https://github.com/llvm/llvm-project/pull/67868