Hi,
The issue is, that for x86_64 the call for a w64 abi function should be
supported. The problem is, that va_list has always the type of the target
and there is no abi specific switching supported. My first idea was to
make the define for va_list_type_node in tree.h overridable for targets,
or replace the use of this type in code by an new target specific macro
(e.g. TARGET_VA_LIST).
Additionally of course new builtin types have to be added for such
targets, as for x86_64<->w64 like __builtin_ms_va_list and
__builting_sysv_va_list.
I am not sure if this approach would be ok. May somebody could give me a
hint about how to implement it?
Thanks in advance,
Kai
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