[NFC][unwind] Improve error message when a type has more than one RTTIs
The "dynamic_cast error 2" error can apparently happen when the same
type (with RTTI) is defined in more than one translation unit, and
those translation units are linked together. This is technically an
ODR violation, but making the error message more obvious is still
helpful.
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@344052 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/src/private_typeinfo.cpp b/src/private_typeinfo.cpp
index 67a5a62..30340a1 100644
--- a/src/private_typeinfo.cpp
+++ b/src/private_typeinfo.cpp
@@ -651,7 +651,7 @@
// We get here only if there is some kind of visibility problem
// in client code.
syslog(LOG_ERR, "dynamic_cast error 1: Both of the following type_info's "
- "should have public visibility. At least one of them is hidden. %s"
+ "should have public visibility. At least one of them is hidden. %s"
", %s.\n", static_type->name(), dynamic_type->name());
// Redo the search comparing type_info's using strcmp
info = {dst_type, static_ptr, static_type, src2dst_offset, 0};
@@ -674,7 +674,8 @@
info.path_dynamic_ptr_to_static_ptr == unknown)
{
syslog(LOG_ERR, "dynamic_cast error 2: One or more of the following type_info's "
- "has hidden visibility. They should all have public visibility. "
+ "has hidden visibility or is defined in more than one translation "
+ "unit. They should all have public visibility. "
"%s, %s, %s.\n", static_type->name(), dynamic_type->name(),
dst_type->name());
// Redo the search comparing type_info's using strcmp
