[PATCH v2] dlopen.3: ATTRIBUTES: Note functions that are thread-safe

[Zeng Linggang <zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>]

After research, We think
* dlopen(),
* dlerror(),
* dlsym(),
* dlclose(),
* dladdr(),
* dlvsym(),
* dlinfo(),
* dlmopen(),
* dladdr1()
are thread-safe. But, there are not
markings of them in glibc document.

Signed-off-by: Zeng Linggang <zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
---
 man3/dlopen.3 | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/man3/dlopen.3 b/man3/dlopen.3
index cb5dbf9..f8e8667 100644
--- a/man3/dlopen.3
+++ b/man3/dlopen.3
@@ -396,6 +396,29 @@ provided by glibc since version 2.1,
 does the same as
 .BR dlsym ()
 but takes a version string as an additional argument.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw30 lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR dlopen (),
+.BR dlerror (),
+.BR dlsym (),
+.br
+.BR dlclose (),
+.BR dladdr (),
+.BR dlvsym (),
+.br
+.BR dlinfo (),
+.BR dlmopen (),
+.BR dladdr1 ()
+T}	Thread safety	MT-Safe
+.TE
+
 .SH CONFORMING TO
 POSIX.1-2001 describes
 .BR dlclose (),
-- 
1.9.3



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