From 21ec498d7f91285018e74f9767fe46cebace682a Mon Sep 17 00:00:00 2001 From: Jeremy Drake via Cygwin-patches Date: Wed, 9 Dec 2020 11:27:11 -0800 Subject: [PATCH] cygwin: use CREATE_DEFAULT_ERROR_MODE in spawn This allows native processes to get Windows-default error handling behavior (such as invoking the registered JIT debugger). --- winsup/cygwin/spawn.cc | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc index 92d190d1a..83b216f52 100644 --- a/winsup/cygwin/spawn.cc +++ b/winsup/cygwin/spawn.cc @@ -431,6 +431,13 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv, c_flags |= CREATE_SEPARATE_WOW_VDM | CREATE_UNICODE_ENVIRONMENT; + /* Add CREATE_DEFAULT_ERROR_MODE flag for non-Cygwin processes so they + get the default error mode instead of inheriting the mode Cygwin + uses. This allows things like Windows Error Reporting/JIT debugging + to work with processes launched from a Cygwin shell. */ + if (!real_path.iscygexec ()) + c_flags |= CREATE_DEFAULT_ERROR_MODE; + /* We're adding the CREATE_BREAKAWAY_FROM_JOB flag here to workaround issues with the "Program Compatibility Assistant (PCA) Service". For some reason, when starting long running sessions from mintty(*), -- 2.43.5