libxl: change IDL to export a saner interface for upcoming language bindings

Firstly remove an anonymous union in libxl_device_pci structure which
was making auto-generating language bindings more complicated than
necessary and exporting random bits of low level ABI that libxl that
would rather hide anyway. There is a corresponding (untested) change to
the ocaml binding which maintains previous ml API.

Secondly make the libxl_file_reference type a Builtin. This is a
'semantic
correctness' issue in that libxl ABI/API won't change. But it makes it
so that when the IDL is used to generate language bindings that a
file_reference type is not exported.

Also implement a Numeric type which all integers are derived from. Make
sure a boolean signed/unsigned attribute is set accordingly. This is
required to allow language bindings to correctly handle the sign bit in
environments with arbitrarily long integers.

Signed-off-by: Gianni Tedesco <gianni.tedesco@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/libxl/idl.txt b/tools/libxl/idl.txt
index 9cb3f67ee7..c691051393 100644
--- a/tools/libxl/idl.txt
+++ b/tools/libxl/idl.txt
@@ -13,7 +13,8 @@ contain the initial namespace element (e.g. "libxl_"). See below for
 how to specify a namespace.
 
 The Type.typename contains the C name of the type _including_ the
-namespace element.
+namespace element while Type.rawname is always set to the 'base' name
+of the type.
 
 The libxltypes.Type base class has several other properties which
 apply to all types. The properties are set by passing a named