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authorPaolo Bonzini2016-11-02 20:46:13 +0100
committerPaolo Bonzini2016-12-22 16:00:24 +0100
commita273f4cedf011af535ff3757c3a93e7134c198da (patch)
tree99f5d06f166ea5f8e1cd949e35809bab13fb885e
parentrules.mak: speedup save-vars load-vars (diff)
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rules.mak: add more rules to avoid chaining
Really rule chaining is not a particularly expensive task, since GNU Make caches the directory listing. However it is easy to avoid it for most files and for phony targets (one was missing). After this patch, only "Makefile", "scripts/hxtool" and "scripts/create_config" attempt to use chained rules. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--Makefile.target1
-rw-r--r--rules.mak4
2 files changed, 5 insertions, 0 deletions
diff --git a/Makefile.target b/Makefile.target
index 6689e31f17..8ae82cb311 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -76,6 +76,7 @@ $(QEMU_PROG)-simpletrace.stp: $(BUILD_DIR)/trace-events-all
else
stap:
endif
+.PHONY: stap
all: $(PROGS) stap
diff --git a/rules.mak b/rules.mak
index c69863fd39..ce9e7e6ffe 100644
--- a/rules.mak
+++ b/rules.mak
@@ -7,6 +7,10 @@ MAKEFLAGS += -rR
# Files with this suffixes are final, don't try to generate them
# using implicit rules
+%/trace-events:
+%.hx:
+%.py:
+%.objs:
%.d:
%.h:
%.c: