[libc++] Fix linking for platforms that don't implement std::exception_ptr

[itrofimow]

This patch fixes linkage for platforms that don't implement std::exception_ptr, as such setup was overlooked in #65534

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: None (itrofimow)

Changes

This patch fixes linkage for platforms that don't implement std::exception_ptr, as such setup was overlooked in #65534

---

Full diff: https://github.com/llvm/llvm-project/pull/79040.diff

1 Files Affected:

• (modified) libcxx/src/support/runtime/exception_pointer_unimplemented.ipp (+6)

diff --git a/libcxx/src/support/runtime/exception_pointer_unimplemented.ipp b/libcxx/src/support/runtime/exception_pointer_unimplemented.ipp
index de0605d7774b8a6..e12b0caf419d24e 100644
--- a/libcxx/src/support/runtime/exception_pointer_unimplemented.ipp
+++ b/libcxx/src/support/runtime/exception_pointer_unimplemented.ipp
@@ -30,6 +30,12 @@ exception_ptr& exception_ptr::operator=(const exception_ptr& other) noexcept {
   ::abort();
 }
 
+exception_ptr exception_ptr::__from_native_exception_pointer(void *__e) noexcept {
+#warning exception_ptr not yet implemented
+  fprintf(stderr, "exception_ptr not yet implemented\n");
+  ::abort();
+}
+
 nested_exception::nested_exception() noexcept : __ptr_(current_exception()) {}
 
 #if !defined(__GLIBCXX__)

[nico]

Thanks for the fix! My bot now no longer uses this codepath – is upstream missing CI for this config?

[philnik777]

Thanks for the fix! My bot now no longer uses this codepath – is upstream missing CI for this config?

Looks like that's the case.