diff mbox

[RFC,1/5] bits/dlfcn.h: Declare and describe the dlmopen RTLD_SHARED flag

Message ID 20180424162654.17761-2-vivek@collabora.com
State New, archived
Headers

Commit Message

Vivek Dasmohapatra April 24, 2018, 4:26 p.m. UTC 
  This flag will instruct dlmopen to create a shared object present
in both the main namespace and the selected namespace when set.
---
 bits/dlfcn.h | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox

Patch

diff --git a/bits/dlfcn.h b/bits/dlfcn.h
index b0b129b66b..a96270d499 100644
--- a/bits/dlfcn.h
+++ b/bits/dlfcn.h
@@ -32,6 +32,13 @@ 
    visible as if the object were linked directly into the program.  */
 #define RTLD_GLOBAL	0x00100
 
+/* If the following bit is set in the MODE argument to dlmopen
+   then the target object is loaded into the main namespace (if
+   it is not already there) and a shallow copy (clone) is placed
+   in the target namespace: This allows multiple namespaces to
+   share a single instance of a DSO.  */
+#define RTLD_SHARED 0x00080
+
 /* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
    The implementation does this by default and so we can define the
    value to zero.  */