[foreign] RFR 8222025: jextract generates reference to underfined type for va_list

Sundararajan Athijegannathan sundararajan.athijegannathan at oracle.com
Sat Apr 6 03:12:51 UTC 2019

You're right. This fix addresses only typedefs that too that only 
builtin struct/union types only (for now).  This seems to cover issues 
faced with compilation of generated sources. We could walk through every 
type usage in all Trees. Should we/I do that?


On 06/04/19, 1:49 AM, Maurizio Cimadamore wrote:
> Looks a very nice fix! This is also related to the issue that Jorn was 
> trying to fix while ago re. incomplete array types, so maybe after 
> this is pushed, we can revisit that topic.
> One question: this patch attempts to fix missing builtins only in case 
> they appear in typedefs, right? That is ok for the va_list case, but I 
> guess it doesn't address the more general problem where builtins are 
> used directly (I assume not all of them will be typedef'ed) ? What 
> would be the plan there?
> Maurizio
> On 05/04/2019 11:49, Sundararajan Athijegannathan wrote:
>> Please review.
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8222025
>> Webrev: https://cr.openjdk.java.net/~sundar/8222025/webrev.00/
>> "builtin" type is detected by source file location having "null" 
>> path. For each builtin record type, we generate fake Trees and add to 
>> the list of declarations. A builtin header file ("builtin$.h") is 
>> used as a target header for such declarations. This ensures that we 
>> only generate one copy of builitin mappings & all builtin type 
>> references resolve to those.
>> Thanks,
>> -Sundar

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