SERVER-55737 Add an experiment for not requiring -rdynamic

2 files changed, 13 insertions, 6 deletions

diff --git a/src/mongo/util/SConscript b/src/mongo/util/SConscript
index 681207594db..ee75e3724f5 100644
--- a/src/mongo/util/SConscript
+++ b/src/mongo/util/SConscript
@@ -761,6 +761,9 @@ stacktraceEnv.CppUnitTest(
         'stacktrace_test.cpp',
     ],
     LIBDEPS=stacktrace_test_LIBDEPS,
+    EXPORT_SYMBOLS=[
+        'mongo_stacktrace_test_detail_testFunctionWithLinkage',
+    ],
 )
 
 stacktraceEnv.Benchmark(
diff --git a/src/mongo/util/stacktrace_test.cpp b/src/mongo/util/stacktrace_test.cpp
index feac7aa72aa..2a9ad180c28 100644
--- a/src/mongo/util/stacktrace_test.cpp
+++ b/src/mongo/util/stacktrace_test.cpp
@@ -69,13 +69,17 @@
 #include <unistd.h>
 #endif  //  __linux__
 
+// Needs to have linkage so we can test metadata. Needs to be extern
+// "C" so it doesn't get mangled so we can name it with EXPORT_SYMBOLS
+// in SConscript.
+extern "C" MONGO_COMPILER_NOINLINE MONGO_COMPILER_API_EXPORT void
+mongo_stacktrace_test_detail_testFunctionWithLinkage() {
+    printf("...");
+}
+
 namespace mongo {
 
 namespace stack_trace_test_detail {
-/** Needs to have linkage so we can test metadata. */
-MONGO_COMPILER_NOINLINE MONGO_COMPILER_API_EXPORT void testFunctionWithLinkage() {
-    printf("...");
-}
 
 struct RecursionParam {
     std::uint64_t n;
@@ -320,7 +324,7 @@ TEST(StackTrace, MetadataGenerator) {
         std::string symbolSub;
     } const tests[] = {
         {
-            reinterpret_cast<void*>(&stack_trace_test_detail::testFunctionWithLinkage),
+            reinterpret_cast<void*>(&mongo_stacktrace_test_detail_testFunctionWithLinkage),
             "stacktrace_test",
             "testFunctionWithLinkage",
         },
@@ -356,7 +360,7 @@ TEST(StackTrace, MetadataGeneratorFunctionMeasure) {
     // Measure the size of a C++ function as a test of metadata retrieval.
     // Load increasing addresses until the metadata's symbol name changes.
     StackTraceAddressMetadataGenerator gen;
-    void* fp = reinterpret_cast<void*>(&stack_trace_test_detail::testFunctionWithLinkage);
+    void* fp = reinterpret_cast<void*>(&mongo_stacktrace_test_detail_testFunctionWithLinkage);
     const auto& meta = gen.load(fp);
     if (!meta.symbol())
         return;  // No symbol for `fp`. forget it.