[Linux] Only export extension init symbol

Since we link with static libstdc++ we need to tell gcc to only export the necessary symbols. Using "-fvisibility=hidden" will not work, since libstdc++ explicitly export its symbols.
godotengine · Dec 21, 2023 · b76cc5b · b76cc5b
1 parent 724910c
commit b76cc5b
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/SConstruct b/SConstruct
@@ -124,7 +124,7 @@ if env["platform"] == "macos" and os.environ.get("OSXCROSS_ROOT", ""):
 if env["platform"] == "linux":
     env.Append(
         LINKFLAGS=[
-            "-Wl,--no-undefined",
+            "-Wl,--no-undefined,--version-script=" + env.File("misc/dist/linux/symbols.map").abspath,
             "-static-libgcc",
             "-static-libstdc++",
         ]

diff --git a/misc/dist/linux/symbols.map b/misc/dist/linux/symbols.map
@@ -0,0 +1,6 @@
+{
+    global:
+        webrtc_extension_init;
+    local:
+        *;
+};