[07/44] Implement process-shared locks support for libthr.so.3, without breaking the ABI. Special value is stored in the lock pointer to indicate shared lock, and offline page in the shared memory is allocated to store the actual lock.

Message ID 20180809060936.9726-8-sebastian.huber@embedded-brains.de
State New
Headers show
Series
  • Update RTEMS-specific header files to latest FreeBSD versions
Related show

Commit Message

Sebastian Huber Aug. 9, 2018, 6:08 a.m.
From: kib <kib@FreeBSD.org>


Reviewed by:	vangyzen (previous version)
Discussed with:	deischen, emaste, jhb, rwatson,
	Martin Simmons <martin@lispworks.com>
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
---
 newlib/libc/sys/rtems/include/sys/mman.h | 7 +++++++
 1 file changed, 7 insertions(+)

-- 
2.13.7

Patch

diff --git a/newlib/libc/sys/rtems/include/sys/mman.h b/newlib/libc/sys/rtems/include/sys/mman.h
index 19d992e83..1fce96074 100644
--- a/newlib/libc/sys/rtems/include/sys/mman.h
+++ b/newlib/libc/sys/rtems/include/sys/mman.h
@@ -233,6 +233,13 @@  struct shmfd {
 int	shm_map(struct file *fp, size_t size, off_t offset, void **memp);
 int	shm_unmap(struct file *fp, void *mem, size_t size);
 
+int	shm_access(struct shmfd *shmfd, struct ucred *ucred, int flags);
+struct shmfd *shm_alloc(struct ucred *ucred, mode_t mode);
+struct shmfd *shm_hold(struct shmfd *shmfd);
+void	shm_drop(struct shmfd *shmfd);
+int	shm_dotruncate(struct shmfd *shmfd, off_t length);
+
+extern struct fileops shm_ops;
 #else /* !_KERNEL */
 
 __BEGIN_DECLS