util: Implement debug-threads for macOS

macOS provides pthread_setname_np that doesn't have thread id argument.

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 26 insertions, 6 deletions

diff --git a/configure b/configure
index 79375affc1..b9f34afc9e 100755
--- a/configure
+++ b/configure
@@ -3721,8 +3721,8 @@ if test "$mingw32" != yes -a "$pthread" = no; then
       "Make sure to have the pthread libs and headers installed."
 fi
 
-# check for pthread_setname_np
-pthread_setname_np=no
+# check for pthread_setname_np with thread id
+pthread_setname_np_w_tid=no
 cat > $TMPC << EOF
 #include <pthread.h>
 
@@ -3736,7 +3736,24 @@ int main(void)
 }
 EOF
 if compile_prog "" "$pthread_lib" ; then
-  pthread_setname_np=yes
+  pthread_setname_np_w_tid=yes
+fi
+
+# check for pthread_setname_np without thread id
+pthread_setname_np_wo_tid=no
+cat > $TMPC << EOF
+#include <pthread.h>
+
+static void *f(void *p) { pthread_setname_np("QEMU"); }
+int main(void)
+{
+    pthread_t thread;
+    pthread_create(&thread, 0, f, 0);
+    return 0;
+}
+EOF
+if compile_prog "" "$pthread_lib" ; then
+  pthread_setname_np_wo_tid=yes
 fi
 
 ##########################################
@@ -6889,11 +6906,14 @@ fi
 # Hold two types of flag:
 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
 #                                     a thread we have a handle to
-#   CONFIG_PTHREAD_SETNAME_NP       - A way of doing it on a particular
+#   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
 #                                     platform
-if test "$pthread_setname_np" = "yes" ; then
+if test "$pthread_setname_np_w_tid" = "yes" ; then
+  echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
+  echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
+elif test "$pthread_setname_np_wo_tid" = "yes" ; then
   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
-  echo "CONFIG_PTHREAD_SETNAME_NP=y" >> $config_host_mak
+  echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
 fi
 
 if test "$vxhs" = "yes" ; then