[PATCH 2/5] Cygwin: Disable writing core dumps by default.

[Jon Turney <jon.turney@dronecode.org.uk>]

Change the default core limit from unlimited to 0 (disabled)
---
 winsup/cygwin/mm/cygheap.cc | 2 +-
 winsup/cygwin/release/3.5.0 | 3 +++
 winsup/doc/new-features.xml | 6 ++++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/mm/cygheap.cc b/winsup/cygwin/mm/cygheap.cc
index a20ee5972..3dc0c011f 100644
--- a/winsup/cygwin/mm/cygheap.cc
+++ b/winsup/cygwin/mm/cygheap.cc
@@ -294,7 +294,7 @@ cygheap_init ()
       cygheap->locale.mbtowc = __utf8_mbtowc;
       /* Set umask to a sane default. */
       cygheap->umask = 022;
-      cygheap->rlim_core = RLIM_INFINITY;
+      cygheap->rlim_core = 0;
     }
   if (!cygheap->fdtab)
     cygheap->fdtab.init ();
diff --git a/winsup/cygwin/release/3.5.0 b/winsup/cygwin/release/3.5.0
index ed27ee32a..3e6d60376 100644
--- a/winsup/cygwin/release/3.5.0
+++ b/winsup/cygwin/release/3.5.0
@@ -62,3 +62,6 @@ What changed:
 - When RLIMIT_CORE is more than 1MB, a core dump file which can be loaded by gdb
   is now written on a fatal error. Otherwise, if it's greater than zero, a text
   format .stackdump file is written, as previously.
+
+- The default RLIMIT_CORE is now 0, disabling the generation of core dump or
+  stackdump files.
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index b6daadc2b..a22b78a60 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -99,6 +99,12 @@ is now written on a fatal error. Otherwise, if it's greater than zero, a text
 format .stackdump file is written, as previously.
 </para></listitem>
 
+<listitem><para>
+The default RLIMIT_CORE is now 0, disabling the generation of core dump or
+stackdump files. Use e.g. <code>ulimit -c unlimited</code> or <code>ulimit -c
+1024</code> to enable them again.
+</para></listitem>
+
 </itemizedlist>
 
 </sect2>
-- 
2.43.0