[PATCH v3 28/44] gdbserver: add a pointer to the owner thread in regcache

[Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>]

Add a back-link in regcache to the thread that owns the regcache.
This will help us in future patches to refer to the right thread
object without having to rely on the global current_thread pointer.
---
 gdbserver/regcache.cc | 1 +
 gdbserver/regcache.h  | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/gdbserver/regcache.cc b/gdbserver/regcache.cc
index a937a34b8d03e75df3aba7ba1244036196fdc1e7..fbdcd7ac5aa262d2c5c508dab9063ce291985ce8 100644
--- a/gdbserver/regcache.cc
+++ b/gdbserver/regcache.cc
@@ -44,6 +44,7 @@ get_thread_regcache (thread_info *thread, bool fetch)
 
       thread->set_regcache (std::make_unique<struct regcache> (proc->tdesc));
       regcache = thread->regcache ();
+      regcache->thread = thread;
     }
 
   if (fetch && !regcache->registers_fetched)
diff --git a/gdbserver/regcache.h b/gdbserver/regcache.h
index 89e801f5b26b963a11ba87caa7839e427152a514..12da0738f16b2f9790d980180f51b2555bb28e63 100644
--- a/gdbserver/regcache.h
+++ b/gdbserver/regcache.h
@@ -34,6 +34,9 @@ struct regcache : public reg_buffer_common
   /* The regcache's target description.  */
   const struct target_desc *tdesc = nullptr;
 
+  /* Back-link to the thread to which this regcache belongs.  */
+  thread_info *thread = nullptr;
+
   /* Whether the REGISTERS buffer's contents are fetched.  If false,
      we haven't fetched the registers from the target yet.  Note that
      this register cache is _not_ pass-through, unlike GDB's.  Also,

-- 
2.34.1

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