[lld] [CMake] Export symbols after `target_link_libraries` for lld (PR #115700)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lld

Author: Shatyuka (shatyuka)

<details>
<summary>Changes</summary>

Found that lld only exports very few symbols after enable `LLVM_EXPORT_SYMBOLS_FOR_PLUGINS`.

We need to collect `LINK_LIBRARIES` after all `target_link_libraries` calls.


---
Full diff: https://github.com/llvm/llvm-project/pull/115700.diff


1 Files Affected:

- (modified) lld/tools/lld/CMakeLists.txt (+2-1) 


``````````diff
diff --git a/lld/tools/lld/CMakeLists.txt b/lld/tools/lld/CMakeLists.txt
index 8498a91597a930..753b29c5756773 100644
--- a/lld/tools/lld/CMakeLists.txt
+++ b/lld/tools/lld/CMakeLists.txt
@@ -9,7 +9,6 @@ add_lld_tool(lld
   SUPPORT_PLUGINS
   GENERATE_DRIVER
   )
-export_executable_symbols_for_plugins(lld)
 
 function(lld_target_link_libraries target type)
   if (TARGET obj.${target})
@@ -34,6 +33,8 @@ lld_target_link_libraries(lld
   lldWasm
   )
 
+export_executable_symbols_for_plugins(lld)
+
 if(NOT LLD_SYMLINKS_TO_CREATE)
   set(LLD_SYMLINKS_TO_CREATE
       lld-link ld.lld ld64.lld wasm-ld)

``````````

</details>


https://github.com/llvm/llvm-project/pull/115700