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When Swig is installed but not any Lua interpreter, the cmake script in lldb/cmake/modules/FindLuaAndSwig.cmake will execute find_program(LUA_EXECUTABLE, ...) and this will set the LUA_EXECUTABLE variable to LUA_EXECUTABLE-NOTFOUND.

Ensure that in this case we are skipping the Lua tests requiring the interpreter.

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@llvmbot llvmbot added the lldb label Oct 23, 2025
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llvmbot commented Oct 23, 2025

@llvm/pr-subscribers-lldb

Author: Vincent Palatin (vpalatin)

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When Swig is installed but not any Lua interpreter, the cmake script in lldb/cmake/modules/FindLuaAndSwig.cmake will execute find_program(LUA_EXECUTABLE, ...) and this will set the LUA_EXECUTABLE variable to LUA_EXECUTABLE-NOTFOUND.

Ensure that in this case we are skipping the Lua tests requiring the interpreter.


Full diff: https://github.com/llvm/llvm-project/pull/164793.diff

1 Files Affected:

  • (modified) lldb/test/API/lua_api/TestLuaAPI.py (+5-1)
diff --git a/lldb/test/API/lua_api/TestLuaAPI.py b/lldb/test/API/lua_api/TestLuaAPI.py
index 4ac795d696425..41d7873575a3d 100644
--- a/lldb/test/API/lua_api/TestLuaAPI.py
+++ b/lldb/test/API/lua_api/TestLuaAPI.py
@@ -158,7 +158,11 @@ def get_tests(self):
         return tests
 
     def test_lua_api(self):
-        if "LUA_EXECUTABLE" not in os.environ or len(os.environ["LUA_EXECUTABLE"]) == 0:
+        if (
+            "LUA_EXECUTABLE" not in os.environ
+            or len(os.environ["LUA_EXECUTABLE"]) == 0
+            or "NOTFOUND" in os.environ["LUA_EXECUTABLE"]
+        ):
             self.skipTest("Lua API tests could not find Lua executable.")
             return
         lua_executable = os.environ["LUA_EXECUTABLE"]

Comment on lines 161 to 165
if (
"LUA_EXECUTABLE" not in os.environ
or len(os.environ["LUA_EXECUTABLE"]) == 0
or "NOTFOUND" in os.environ["LUA_EXECUTABLE"]
):
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How about we check if os.path.exists(os.environ["LUA_EXECUTABLE"]) to cover both cases?

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yes, it's a nicest and more generic way, I will update the patch.

By the way, while verifying the patch for the maybe-exotic corner case, I noticed that LUAANDSWIG_FOUND is incorrectly defined (to 1) too as the find_package_handle_standard_args(LuaAndSwig call in lldb/cmake/modules/FindLuaAndSwig.cmake is not checking the LUA_EXECUTABLE variable (which is LUA_EXECUTABLE-NOTFOUND in this case. I think it is worth adding too.

When Swig is installed but not any Lua interpreter, the cmake script in
`lldb/cmake/modules/FindLuaAndSwig.cmake` will execute
`find_program(LUA_EXECUTABLE, ...)` and this will set the `LUA_EXECUTABLE`
variable to `LUA_EXECUTABLE-NOTFOUND`.

Ensure that in this case we are skipping the Lua tests requiring the
interpreter and the `LUAANDSWIG_FOUND` is not set.
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Thanks, LGTM

@JDevlieghere JDevlieghere merged commit bba6bc6 into llvm:main Oct 26, 2025
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varun-r-mallya pushed a commit to varun-r-mallya/llvm-project that referenced this pull request Oct 27, 2025
…vm#164793)

When SWIG is installed but not any Lua interpreter, the cmake script in
`lldb/cmake/modules/FindLuaAndSwig.cmake` will execute
`find_program(LUA_EXECUTABLE, ...)` and this will set the
`LUA_EXECUTABLE` variable to `LUA_EXECUTABLE-NOTFOUND`.

Ensure that in this case we are skipping the Lua tests requiring the
interpreter.
dvbuka pushed a commit to dvbuka/llvm-project that referenced this pull request Oct 27, 2025
…vm#164793)

When SWIG is installed but not any Lua interpreter, the cmake script in
`lldb/cmake/modules/FindLuaAndSwig.cmake` will execute
`find_program(LUA_EXECUTABLE, ...)` and this will set the
`LUA_EXECUTABLE` variable to `LUA_EXECUTABLE-NOTFOUND`.

Ensure that in this case we are skipping the Lua tests requiring the
interpreter.
Lukacma pushed a commit to Lukacma/llvm-project that referenced this pull request Oct 29, 2025
…vm#164793)

When SWIG is installed but not any Lua interpreter, the cmake script in
`lldb/cmake/modules/FindLuaAndSwig.cmake` will execute
`find_program(LUA_EXECUTABLE, ...)` and this will set the
`LUA_EXECUTABLE` variable to `LUA_EXECUTABLE-NOTFOUND`.

Ensure that in this case we are skipping the Lua tests requiring the
interpreter.
aokblast pushed a commit to aokblast/llvm-project that referenced this pull request Oct 30, 2025
…vm#164793)

When SWIG is installed but not any Lua interpreter, the cmake script in
`lldb/cmake/modules/FindLuaAndSwig.cmake` will execute
`find_program(LUA_EXECUTABLE, ...)` and this will set the
`LUA_EXECUTABLE` variable to `LUA_EXECUTABLE-NOTFOUND`.

Ensure that in this case we are skipping the Lua tests requiring the
interpreter.
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3 participants