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* [newlib-cygwin] cygwin: use CREATE_DEFAULT_ERROR_MODE in spawn
@ 2020-12-10  9:58 Corinna Vinschen
  0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2020-12-10  9:58 UTC (permalink / raw)
  To: cygwin-cvs;h=21ec498d7f91285018e74f9767fe46cebace682a

commit 21ec498d7f91285018e74f9767fe46cebace682a
Author: Jeremy Drake via Cygwin-patches <>
Date:   Wed Dec 9 11:27:11 2020 -0800

    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/ | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/winsup/cygwin/ b/winsup/cygwin/
index 92d190d1a..83b216f52 100644
--- a/winsup/cygwin/
+++ b/winsup/cygwin/
@@ -431,6 +431,13 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
+      /* 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 ())
       /* 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(*),

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