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* [newlib-cygwin] cygwin: use CREATE_DEFAULT_ERROR_MODE in spawn
@ 2020-12-10 9:58 Corinna Vinschen
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From: Corinna Vinschen @ 2020-12-10 9:58 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=21ec498d7f91285018e74f9767fe46cebace682a
commit 21ec498d7f91285018e74f9767fe46cebace682a
Author: Jeremy Drake via Cygwin-patches <cygwin-patches@cygwin.com>
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).
Diff:
---
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(*),
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2020-12-10 9:58 [newlib-cygwin] cygwin: use CREATE_DEFAULT_ERROR_MODE in spawn Corinna Vinschen
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