commit 10ea972730a9050a7f2eb19e49bf34bb525cbb01
author Martin Storsjö <martin@martin.st> Tue Apr 18 15:04:57 2023 +0300
committer Copybara-Service <copybara-worker@google.com> Wed Apr 19 13:13:52 2023 -0700
tree 3a52685047bf8f8105019661b6956d1a47e3e269
parent 6f981f080abbbcde8e536fe15e63b12b86727979

[libunwind] [SEH] Add debug logging in __libunwind_seh_personality

Differential Revision: https://reviews.llvm.org/D148659

GitOrigin-RevId: ba9b2cdb9c00f68f1759386fdafc2285e0227357

src/Unwind-seh.cpp

diff --git a/src/Unwind-seh.cpp b/src/Unwind-seh.cpp
index 150ba64..b2bb119 100644
--- a/src/Unwind-seh.cpp
+++ b/src/Unwind-seh.cpp
@@ -212,10 +212,18 @@
   ms_exc.ExceptionInformation[2] = state;
   DISPATCHER_CONTEXT *disp_ctx =
       __unw_seh_get_disp_ctx((unw_cursor_t *)context);
+  _LIBUNWIND_TRACE_UNWINDING("__libunwind_seh_personality() calling "
+                             "LanguageHandler %p(%p, %p, %p, %p)",
+                             (void *)disp_ctx->LanguageHandler, (void *)&ms_exc,
+                             (void *)disp_ctx->EstablisherFrame,
+                             (void *)disp_ctx->ContextRecord, (void *)disp_ctx);
   EXCEPTION_DISPOSITION ms_act = disp_ctx->LanguageHandler(&ms_exc,
                                                            (PVOID)disp_ctx->EstablisherFrame,
                                                            disp_ctx->ContextRecord,
                                                            disp_ctx);
+  _LIBUNWIND_TRACE_UNWINDING("__libunwind_seh_personality() LanguageHandler "
+                             "returned %d",
+                             (int)ms_act);
   switch (ms_act) {
   case ExceptionContinueExecution: return _URC_END_OF_STACK;
   case ExceptionContinueSearch: return _URC_CONTINUE_UNWIND;