From 4d4308af780bbb79af79e2a6429c49114634db2a Mon Sep 17 00:00:00 2001
From: Peter Steinberger <steipete@gmail.com>
Date: Wed, 24 Dec 2025 21:43:36 +0100
Subject: [PATCH] fix: resolve coverage profile symbol at runtime

---
 .../Tests/ClawdisIPCTests/CoverageDumpTests.swift    | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/apps/macos/Tests/ClawdisIPCTests/CoverageDumpTests.swift b/apps/macos/Tests/ClawdisIPCTests/CoverageDumpTests.swift
index 917a786d3d..278477448b 100644
--- a/apps/macos/Tests/ClawdisIPCTests/CoverageDumpTests.swift
+++ b/apps/macos/Tests/ClawdisIPCTests/CoverageDumpTests.swift
@@ -6,13 +6,19 @@ import Testing
 struct CoverageDumpTests {
     @Test func periodicallyFlushCoverage() async {
         guard ProcessInfo.processInfo.environment["LLVM_PROFILE_FILE"] != nil else { return }
+        guard let writeProfile = resolveProfileWriteFile() else { return }
         let deadline = Date().addingTimeInterval(4)
         while Date() < deadline {
-            _ = llvmProfileWriteFile()
+            _ = writeProfile()
             try? await Task.sleep(nanoseconds: 250_000_000)
         }
     }
 }
 
-@_silgen_name("__llvm_profile_write_file")
-private func llvmProfileWriteFile() -> Int32
+private typealias ProfileWriteFn = @convention(c) () -> Int32
+
+private func resolveProfileWriteFile() -> ProfileWriteFn? {
+    let symbol = dlsym(UnsafeMutableRawPointer(bitPattern: -2), "__llvm_profile_write_file")
+    guard let symbol else { return nil }
+    return unsafeBitCast(symbol, to: ProfileWriteFn.self)
+}