[RFC PATCH] tests/tcg: add mechanism to handle plugin arguments

["Alex Bennée" <alex.bennee@linaro.org>]

We recently missed a regression that should have been picked up by
check-tcg. This was because the libmem plugin is effectively a NOP if
the user doesn't specify the type to use.

Rather than changing the default behaviour add an additional expansion
so we can take this into account in future.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
---
 tests/tcg/Makefile.target | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/tcg/Makefile.target b/tests/tcg/Makefile.target
index 72876cc84e..2462c26000 100644
--- a/tests/tcg/Makefile.target
+++ b/tests/tcg/Makefile.target
@@ -169,13 +169,17 @@ extract-plugin = $(wordlist 2, 2, $(subst -with-, ,$1))
 
 RUN_TESTS+=$(EXTRA_RUNS)
 
+# Some plugins need additional arguments above the default to fully
+# exercise things. We can define them on a per-test basis here.
+run-plugin-%-with-libmem.so: PLUGIN_ARGS=$(COMMA)inline=true$(COMMA)callback=true
+
 ifeq ($(filter %-softmmu, $(TARGET)),)
 run-%: %
 	$(call run-test, $<, $(QEMU) $(QEMU_OPTS) $<)
 
 run-plugin-%:
 	$(call run-test, $@, $(QEMU) $(QEMU_OPTS) \
-		-plugin $(PLUGIN_LIB)/$(call extract-plugin,$@) \
+		-plugin $(PLUGIN_LIB)/$(call extract-plugin,$@)$(PLUGIN_ARGS) \
 		-d plugin -D $*.pout \
 		 $(call strip-plugin,$<))
 else
@@ -189,7 +193,7 @@ run-plugin-%:
 	$(call run-test, $@, \
 	  $(QEMU) -monitor none -display none \
 		  -chardev file$(COMMA)path=$@.out$(COMMA)id=output \
-	   	  -plugin $(PLUGIN_LIB)/$(call extract-plugin,$@) \
+	   	  -plugin $(PLUGIN_LIB)/$(call extract-plugin,$@)$(PLUGIN_ARGS) \
 	    	  -d plugin -D $*.pout \
 		  $(QEMU_OPTS) $(call strip-plugin,$<))
 endif
-- 
2.39.2