Add support for ternary const entries (#3347)

* Add support for ternary const entries in ebpf-PSA backend
p4lang · May 25, 2022 · ea2f917 · ea2f917
1 parent e790248
commit ea2f917
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Showing 6 changed files with 735 additions and 7 deletions.
diff --git a/backends/ebpf/psa/ebpfPsaGen.cpp b/backends/ebpf/psa/ebpfPsaGen.cpp
@@ -314,6 +314,10 @@ void PSAEbpfGenerator::emitHelperFunctions(CodeBuilder *builder) const {
         builder->appendLine(meterExecuteFunc);
         builder->newline();
     }
+
+    cstring addPrefixFunc = EBPFTablePSA::addPrefixFunc(options.emitTraceMessages);
+    builder->appendLine(addPrefixFunc);
+    builder->newline();
 }
 
 // =====================PSAArchTC=============================
@@ -360,20 +364,20 @@ void PSAArchTC::emit(CodeBuilder *builder) const {
     emitInstances(builder);
 
     /*
-     * 6. BPF map initialization
+     * 6. Helper functions for ingress and egress program.
      */
-    emitInitializer(builder);
-    builder->newline();
+    emitHelperFunctions(builder);
 
     /*
-     * 7. XDP helper program.
+     * 7. BPF map initialization.
      */
-    xdp->emit(builder);
+    emitInitializer(builder);
+    builder->newline();
 
     /*
-     * 8. Helper functions for ingress and egress program.
+     * 8. XDP helper program.
      */
-    emitHelperFunctions(builder);
+    xdp->emit(builder);
 
     /*
      * 9. TC Ingress program.