From: Christian Babeux <christian.babeux@efficios.com>
Date: Thu, 29 Nov 2012 16:13:48 +0000 (-0500)
Subject: Cygwin: Add clone compat layer
X-Git-Url: http://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=8d804f736eb06e892e74f32df00ea0bdb974a410

Cygwin: Add clone compat layer

Cygwin doesn't support the clone() syscall [1].
Users must explicitly set the LTTNG_DEBUG_NOCLONE environment variable.

[1] - http://cygwin.com/ml/cygwin/2009-05/msg00172.html

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
---

diff --git a/src/common/compat/clone.h b/src/common/compat/clone.h
index 581595be0..13e88d418 100644
--- a/src/common/compat/clone.h
+++ b/src/common/compat/clone.h
@@ -56,8 +56,19 @@ pid_t lttng_clone_files(int (*fn)(void *), void *child_stack, void *arg)
 	}
 }
 
+#elif defined(__CYGWIN__)
+#warning "Cygwin doesn't support the clone() syscall. You must set the LTTNG_DEBUG_NOCLONE=1 before starting lttng-sessiond"
+#include <assert.h>
+
+static inline
+pid_t lttng_clone_files(int (*fn)(void *), void *child_stack, void *arg)
+{
+       assert(NULL);
+       return -1;
+}
+
 #else
 #error "Please add support for your OS."
-#endif /* __linux__ , __FreeBSD__ */
+#endif /* __linux__ , __FreeBSD__, __CYGWIN__ */
 
 #endif /* _COMPAT_CLONE_H */