meson.build: expose TCG cross compiler information in summary

Blink and you miss the cross TCG compiler stuff so lets display it
with the rest of the compiler information.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210222101455.12640-2-alex.bennee@linaro.org>

meson.build

@@ -2509,6 +2509,24 @@ endif
 summary_info += {'strip binaries':    get_option('strip')}
 summary_info += {'sparse':            sparse.found() ? sparse.full_path() : false}
 summary_info += {'mingw32 support':   targetos == 'windows'}
+
+# snarf the cross-compilation information for tests
+foreach target: target_dirs
+  tcg_mak = meson.current_build_dir() / 'tests/tcg' / 'config-' + target + '.mak'
+  if fs.exists(tcg_mak)
+    config_cross_tcg = keyval.load(tcg_mak)
+    target = config_cross_tcg['TARGET_NAME']
+    compiler = ''
+    if 'DOCKER_CROSS_CC_GUEST' in config_cross_tcg
+      summary_info += {target + ' tests': config_cross_tcg['DOCKER_CROSS_CC_GUEST'] +
+                                          ' via ' + config_cross_tcg['DOCKER_IMAGE']}
+    elif 'CROSS_CC_GUEST' in config_cross_tcg
+      summary_info += {target + ' tests'
+                                : config_cross_tcg['CROSS_CC_GUEST'] }
+    endif
+   endif
+endforeach
+
 summary(summary_info, bool_yn: true, section: 'Compilation')
 
 # Targets and accelerators

tests/tcg/configure.sh

@@ -263,11 +263,3 @@ for target in $target_list; do
     echo "DOCKER_CROSS_CC_GUEST=$container_cross_cc" >> $config_target_mak
   fi
 done
-
-# report container support state
-echo "cross containers  $container"
-
-if test -n "$enabled_cross_compilers"; then
-    echo
-    echo "NOTE: guest cross-compilers enabled:$enabled_cross_compilers"
-fi