On Thu, 22 Aug 2024 11:27:27 GMT, Yudi Zheng <yzh...@openjdk.org> wrote:

>> Markus Grönlund has updated the pull request incrementally with one 
>> additional commit since the last revision:
>> 
>>   JVMCI exportation
>
> src/hotspot/share/opto/library_call.cpp line 3733:
> 
>> 3731:   // TLS
>> 3732:   Node* tls_ptr = _gvn.transform(new ThreadLocalNode());
>> 3733:   Node* last_continuation_offset = basic_plus_adr(top(), tls_ptr, 
>> in_bytes(JavaThread::cont_entry_offset()));
> 
> Could you please export `JavaThread::_cont_entry` and 
> `ContinuationEntry::_pin_count` to JVMCI? Thanks!
> 
> diff --git a/src/hotspot/share/jvmci/vmStructs_jvmci.cpp 
> b/src/hotspot/share/jvmci/vmStructs_jvmci.cpp
> index 688691fb976..a25ecd2bab5 100644
> --- a/src/hotspot/share/jvmci/vmStructs_jvmci.cpp
> +++ b/src/hotspot/share/jvmci/vmStructs_jvmci.cpp
> @@ -35,6 +35,7 @@
>  #include "oops/methodCounters.hpp"
>  #include "oops/objArrayKlass.hpp"
>  #include "prims/jvmtiThreadState.hpp"
> +#include "runtime/continuationEntry.hpp"
>  #include "runtime/deoptimization.hpp"
>  #include "runtime/flags/jvmFlag.hpp"
>  #include "runtime/osThread.hpp"
> @@ -244,10 +245,13 @@
>    nonstatic_field(JavaThread,                  _held_monitor_count,          
>                  intx)                                  \
>    nonstatic_field(JavaThread,                  _lock_stack,                  
>                  LockStack)                             \
>    nonstatic_field(JavaThread,                  _om_cache,                    
>                  OMCache)                               \
> +  nonstatic_field(JavaThread,                  _cont_entry,                  
>                  ContinuationEntry*)                    \
>    JVMTI_ONLY(nonstatic_field(JavaThread,       _is_in_VTMS_transition,       
>                  bool))                                 \
>    JVMTI_ONLY(nonstatic_field(JavaThread,       _is_in_tmp_VTMS_transition,   
>                  bool))                                 \
>    JVMTI_ONLY(nonstatic_field(JavaThread,       _is_disable_suspend,          
>                  bool))                                 \
>                                                                               
>                                                         \
> +  nonstatic_field(ContinuationEntry,           _pin_count,                   
>                  uint32_t)                              \
> +                                                                             
>                                                         \
>    nonstatic_field(LockStack,                   _top,                         
>                  uint32_t)                              \
>                                                                               
>                          ...

Done (only tested that it builds).

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/20664#discussion_r1726932124

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