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Diffstat (limited to 'tools/net/sunrpc/xdrgen/README')
| -rw-r--r-- | tools/net/sunrpc/xdrgen/README | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/net/sunrpc/xdrgen/README b/tools/net/sunrpc/xdrgen/README index 92f7738ad50c..27218a78ab40 100644 --- a/tools/net/sunrpc/xdrgen/README +++ b/tools/net/sunrpc/xdrgen/README @@ -150,6 +150,23 @@ Pragma directives specify exceptions to the normal generation of encoding and decoding functions. Currently one directive is implemented: "public". +Pragma big_endian +------ ---------- + + pragma big_endian <enum> ; + +For variables that might contain only a small number values, it +is more efficient to avoid the byte-swap when encoding or decoding +on little-endian machines. Such is often the case with error status +codes. For example: + + pragma big_endian nfsstat3; + +In this case, when generating an XDR struct or union containing a +field of type "nfsstat3", xdrgen will make the type of that field +"__be32" instead of "enum nfsstat3". XDR unions then switch on the +non-byte-swapped value of that field. + Pragma exclude ------ ------- |