Index: gdb/doc/gdbint.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdbint.texinfo,v
retrieving revision 1.303
diff -u -p -r1.303 gdbint.texinfo
--- gdb/doc/gdbint.texinfo	7 May 2009 18:40:43 -0000	1.303
+++ gdb/doc/gdbint.texinfo	5 Jun 2009 15:34:43 -0000
@@ -4431,6 +4431,10 @@ core file support in BFD.
 Once BFD support is available, writing the apropriate
 @code{regset_from_core_section} architecture function should be all
 that is needed in order to add support for core files in @value{GDBN}.
+In cases where thread (or lwp depending on the system) numbers are not
+simply appended to appropriate @code{.reg/}
+section name, one also needs to provide @code{ptid_from_core_section_name}
+and @code{core_section_name_from_ptid} architecture functions.
 
 @node Defining Other Architecture Features 
 @section Defining Other Architecture Features