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From: Sebastian Huber <sh@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] shm_open2: Implement SHM_GROW_ON_WRITE
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X-Git-Author: Kyle Evans <kevans@FreeBSD.org>
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https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3Dc95c267a461=
475c6c2bac5c3f23c567e5360589c

commit c95c267a461475c6c2bac5c3f23c567e5360589c
Author: Kyle Evans <kevans@FreeBSD.org>
Date:   Fri Jul 10 00:43:45 2020 +0000

    shm_open2: Implement SHM_GROW_ON_WRITE
   =20
    Lack of SHM_GROW_ON_WRITE is actively breaking Python's memfd_create te=
sts,
    so go ahead and implement it. A future change will make memfd_create al=
ways
    set SHM_GROW_ON_WRITE, to match Linux behavior and unbreak Python's tes=
ts
    on -CURRENT.
   =20
    Reviewed by:    kib
    Differential Revision:  https://reviews.freebsd.org/D25502

Diff:
---
 newlib/libc/sys/rtems/include/sys/mman.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/newlib/libc/sys/rtems/include/sys/mman.h b/newlib/libc/sys/rte=
ms/include/sys/mman.h
index 7a9b49429..99c1eb8b3 100644
--- a/newlib/libc/sys/rtems/include/sys/mman.h
+++ b/newlib/libc/sys/rtems/include/sys/mman.h
@@ -190,6 +190,7 @@
  * shmflags for shm_open2()
  */
 #define	SHM_ALLOW_SEALING		0x00000001
+#define	SHM_GROW_ON_WRITE		0x00000002
=20
 /*
  * Flags for memfd_create().