gdb, gdbserver: update thread identifier in enable_btrace target method

The enable_btrace target method takes a ptid_t to identify the thread on
which tracing shall be enabled.

Change this to thread_info * to avoid translating back and forth between
the two.  This will be used in a subsequent patch.

5 files changed, 11 insertions, 10 deletions

diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 9e571a4..cf73bbc 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -6669,10 +6669,10 @@ linux_process_target::qxfer_libraries_svr4 (const char *annex,
 #ifdef HAVE_LINUX_BTRACE
 
 btrace_target_info *
-linux_process_target::enable_btrace (ptid_t ptid,
+linux_process_target::enable_btrace (thread_info *tp,
 				     const btrace_config *conf)
 {
-  return linux_enable_btrace (ptid, conf);
+  return linux_enable_btrace (tp->id, conf);
 }
 
 /* See to_disable_btrace target method.  */
diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h
index 6ee72d7..27cc964 100644
--- a/gdbserver/linux-low.h
+++ b/gdbserver/linux-low.h
@@ -276,7 +276,7 @@ public:
   bool supports_agent () override;
 
 #ifdef HAVE_LINUX_BTRACE
-  btrace_target_info *enable_btrace (ptid_t ptid,
+  btrace_target_info *enable_btrace (thread_info *tp,
 				     const btrace_config *conf) override;
 
   int disable_btrace (btrace_target_info *tinfo) override;
diff --git a/gdbserver/server.cc b/gdbserver/server.cc
index 4177239..8e53f22 100644
--- a/gdbserver/server.cc
+++ b/gdbserver/server.cc
@@ -409,7 +409,7 @@ handle_btrace_enable_bts (struct thread_info *thread)
     error (_("Btrace already enabled."));
 
   current_btrace_conf.format = BTRACE_FORMAT_BTS;
-  thread->btrace = target_enable_btrace (thread->id, &current_btrace_conf);
+  thread->btrace = target_enable_btrace (thread, &current_btrace_conf);
 }
 
 /* Handle btrace enabling in Intel Processor Trace format.  */
@@ -421,7 +421,7 @@ handle_btrace_enable_pt (struct thread_info *thread)
     error (_("Btrace already enabled."));
 
   current_btrace_conf.format = BTRACE_FORMAT_PT;
-  thread->btrace = target_enable_btrace (thread->id, &current_btrace_conf);
+  thread->btrace = target_enable_btrace (thread, &current_btrace_conf);
 }
 
 /* Handle btrace disabling.  */
diff --git a/gdbserver/target.cc b/gdbserver/target.cc
index 5165957..5009146 100644
--- a/gdbserver/target.cc
+++ b/gdbserver/target.cc
@@ -736,7 +736,8 @@ process_stratum_target::supports_agent ()
 }
 
 btrace_target_info *
-process_stratum_target::enable_btrace (ptid_t ptid, const btrace_config *conf)
+process_stratum_target::enable_btrace (thread_info *tp,
+				       const btrace_config *conf)
 {
   error (_("Target does not support branch tracing."));
 }
diff --git a/gdbserver/target.h b/gdbserver/target.h
index f58ed9d..aaa9dab 100644
--- a/gdbserver/target.h
+++ b/gdbserver/target.h
@@ -403,9 +403,9 @@ public:
   /* Return true if target supports debugging agent.  */
   virtual bool supports_agent ();
 
-  /* Enable branch tracing for PTID based on CONF and allocate a branch trace
+  /* Enable branch tracing for TP based on CONF and allocate a branch trace
      target information struct for reading and for disabling branch trace.  */
-  virtual btrace_target_info *enable_btrace (ptid_t ptid,
+  virtual btrace_target_info *enable_btrace (thread_info *tp,
 					     const btrace_config *conf);
 
   /* Disable branch tracing.
@@ -635,9 +635,9 @@ int kill_inferior (process_info *proc);
   the_target->supports_agent ()
 
 static inline struct btrace_target_info *
-target_enable_btrace (ptid_t ptid, const struct btrace_config *conf)
+target_enable_btrace (thread_info *tp, const struct btrace_config *conf)
 {
-  return the_target->enable_btrace (ptid, conf);
+  return the_target->enable_btrace (tp, conf);
 }
 
 static inline int