[llvm] [Offload] Add Error Codes to PluginInterface (PR #138258)

[Joseph Huber via llvm-commits]

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@@ -11,13 +11,17 @@ if (CLANG_FORMAT)
     tablegen(OFFLOAD OffloadFuncs.inc -gen-func-names)
     tablegen(OFFLOAD OffloadImplFuncDecls.inc -gen-impl-func-decls)
     tablegen(OFFLOAD OffloadPrint.hpp -gen-print-header)
+    tablegen(OFFLOAD OffloadErrcodes.inc -gen-errcodes)
 
-    set(OFFLOAD_GENERATED_FILES ${TABLEGEN_OUTPUT})
+    set(FILES_TO_COPY "OffloadAPI.h;OffloadEntryPoints.inc;OffloadFuncs.inc;OffloadImplFuncDecls.inc;OffloadPrint.hpp")
+    set(GEN_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../include/generated)
     add_public_tablegen_target(OffloadGenerate)
     add_custom_command(TARGET OffloadGenerate POST_BUILD COMMAND ${CLANG_FORMAT}
-        -i ${OFFLOAD_GENERATED_FILES})
+        -i ${TABLEGEN_OUTPUT})
     add_custom_command(TARGET OffloadGenerate POST_BUILD COMMAND ${CMAKE_COMMAND}
-        -E copy_if_different ${OFFLOAD_GENERATED_FILES} "${CMAKE_CURRENT_SOURCE_DIR}/../include/generated")
+        -E copy_if_different ${FILES_TO_COPY} ${GEN_DIR})
+    add_custom_command(TARGET OffloadGenerate POST_BUILD COMMAND ${CMAKE_COMMAND}
+        -E copy_if_different OffloadErrcodes.inc "${LIBOFFLOAD_ROOT}/../plugins-nextgen/common/include/OffloadErrcodes.inc")
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jhuber6 wrote:

The fact  that this is a shared header but also needs to share a `.cpp` definition makes it a little troublesome. Would it break if we just copied these statically in each TU that included them by putting them in the header?

https://github.com/llvm/llvm-project/pull/138258