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* [newlib-cygwin/main] Cygwin: Disable writing core dumps by default.
@ 2024-01-16 14:11 Jon Turney
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From: Jon Turney @ 2024-01-16 14:11 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=b7868e74103541f3271a170fe3bc2b19a00cc8cf
commit b7868e74103541f3271a170fe3bc2b19a00cc8cf
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date: Tue Jan 9 14:12:31 2024 +0000
Cygwin: Disable writing core dumps by default.
Change the default core limit from unlimited to 0 (disabled)
Diff:
---
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 1e62316a0..5940d8054 100644
--- a/winsup/cygwin/release/3.5.0
+++ b/winsup/cygwin/release/3.5.0
@@ -64,3 +64,6 @@ 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 f8e38f5c4..17c688f89 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -103,6 +103,12 @@ 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>
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