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* [kvm-unit-tests Patch V2] x86: Makefile refine
@ 2016-05-08 13:18 Wei Yang
  2016-05-09 13:30 ` Andrew Jones
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Wei Yang @ 2016-05-08 13:18 UTC (permalink / raw)
  To: drjones, pbonzini; +Cc: kvm, Wei Yang

In x86 Makefile, each elf target has a rule for its dependent, which shares
the same pattern. We could let makefile to handle this job instead of
writing a specific rule for each elf target. By doing so, the makefile rule
looks clear and would be easy for adding new cases.

This patch does several cleanup:
1. add $(cstart.o) in *.elf dependent
2. remove all those elf rules which share the same pattern
3. remove the *.o dependent in the elf rule who has extra dependent
4. move the vmx.elf rule to Makefile.x86_64 since this is not a common case
5. remove elf rules in Makefile.i386
6. Add %.elf and %.o in .PRECIOUS to keep them after make

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>

---
v2:
   add .PRECIOUS special target to keep those intermediate files

---
 x86/Makefile.common | 72 ++++++-----------------------------------------------
 x86/Makefile.i386   |  4 ---
 x86/Makefile.x86_64 |  2 ++
 3 files changed, 9 insertions(+), 69 deletions(-)

diff --git a/x86/Makefile.common b/x86/Makefile.common
index 298e5f7..356d879 100644
--- a/x86/Makefile.common
+++ b/x86/Makefile.common
@@ -25,8 +25,11 @@ KEEP_FRAME_POINTER := y
 
 libgcc := $(shell $(CC) -m$(bits) --print-libgcc-file-name)
 
+# We want to keep intermediate file: %.elf and %.o 
+.PRECIOUS: %.elf %.o
+
 FLATLIBS = lib/libcflat.a $(libgcc)
-%.elf: %.o $(FLATLIBS) x86/flat.lds
+%.elf: %.o $(FLATLIBS) x86/flat.lds $(cstart.o)
 	$(CC) $(CFLAGS) -nostdlib -o $@ -Wl,-T,x86/flat.lds \
 		$(filter %.o, $^) $(FLATLIBS)
 
@@ -53,77 +56,16 @@ test_cases: $(tests-common) $(tests)
 
 $(TEST_DIR)/%.o: CFLAGS += -std=gnu99 -ffreestanding -I lib -I lib/x86
 
-$(TEST_DIR)/access.elf: $(cstart.o) $(TEST_DIR)/access.o
-
-$(TEST_DIR)/hypercall.elf: $(cstart.o) $(TEST_DIR)/hypercall.o
-
-$(TEST_DIR)/sieve.elf: $(cstart.o) $(TEST_DIR)/sieve.o
-
-$(TEST_DIR)/vmexit.elf: $(cstart.o) $(TEST_DIR)/vmexit.o
-
-$(TEST_DIR)/smptest.elf: $(cstart.o) $(TEST_DIR)/smptest.o
-
-$(TEST_DIR)/emulator.elf: $(cstart.o) $(TEST_DIR)/emulator.o
-
-$(TEST_DIR)/port80.elf: $(cstart.o) $(TEST_DIR)/port80.o
-
-$(TEST_DIR)/tsc.elf: $(cstart.o) $(TEST_DIR)/tsc.o
-
-$(TEST_DIR)/tsc_adjust.elf: $(cstart.o) $(TEST_DIR)/tsc_adjust.o
-
-$(TEST_DIR)/apic.elf: $(cstart.o) $(TEST_DIR)/apic.o
-
-$(TEST_DIR)/ioapic.elf: $(cstart.o) $(TEST_DIR)/ioapic.o
-
-$(TEST_DIR)/tscdeadline_latency.elf: $(cstart.o) $(TEST_DIR)/tscdeadline_latency.o
-
-$(TEST_DIR)/init.elf: $(cstart.o) $(TEST_DIR)/init.o
-
 $(TEST_DIR)/realmode.elf: $(TEST_DIR)/realmode.o
 	$(CC) -m32 -nostdlib -o $@ -Wl,-T,$(TEST_DIR)/realmode.lds $^
 
 $(TEST_DIR)/realmode.o: bits = 32
 
-$(TEST_DIR)/msr.elf: $(cstart.o) $(TEST_DIR)/msr.o
-
-$(TEST_DIR)/idt_test.elf: $(cstart.o) $(TEST_DIR)/idt_test.o
-
-$(TEST_DIR)/xsave.elf: $(cstart.o) $(TEST_DIR)/xsave.o
-
-$(TEST_DIR)/rmap_chain.elf: $(cstart.o) $(TEST_DIR)/rmap_chain.o
-
-$(TEST_DIR)/svm.elf: $(cstart.o) $(TEST_DIR)/svm.o
-
-$(TEST_DIR)/kvmclock_test.elf: $(cstart.o) $(TEST_DIR)/kvmclock.o \
-                                $(TEST_DIR)/kvmclock_test.o
-
-$(TEST_DIR)/eventinj.elf: $(cstart.o) $(TEST_DIR)/eventinj.o
-
-$(TEST_DIR)/s3.elf: $(cstart.o) $(TEST_DIR)/s3.o
-
-$(TEST_DIR)/pmu.elf: $(cstart.o) $(TEST_DIR)/pmu.o
-
-$(TEST_DIR)/asyncpf.elf: $(cstart.o) $(TEST_DIR)/asyncpf.o
-
-$(TEST_DIR)/pcid.elf: $(cstart.o) $(TEST_DIR)/pcid.o
-
-$(TEST_DIR)/smap.elf: $(cstart.o) $(TEST_DIR)/smap.o
-
-$(TEST_DIR)/pku.elf: $(cstart.o) $(TEST_DIR)/pku.o
-
-$(TEST_DIR)/vmx.elf: $(cstart.o) $(TEST_DIR)/vmx.o $(TEST_DIR)/vmx_tests.o
-
-$(TEST_DIR)/debug.elf: $(cstart.o) $(TEST_DIR)/debug.o
-
-$(TEST_DIR)/memory.elf: $(cstart.o) $(TEST_DIR)/memory.o
-
-$(TEST_DIR)/hyperv_synic.elf: $(cstart.o) $(TEST_DIR)/hyperv.o \
-                              $(TEST_DIR)/hyperv_synic.o
+$(TEST_DIR)/kvmclock_test.elf: $(TEST_DIR)/kvmclock.o
 
-$(TEST_DIR)/hyperv_stimer.elf: $(cstart.o) $(TEST_DIR)/hyperv.o \
-                               $(TEST_DIR)/hyperv_stimer.o
+$(TEST_DIR)/hyperv_synic.elf: $(TEST_DIR)/hyperv.o
 
-$(TEST_DIR)/setjmp.elf: $(cstart.o) $(TEST_DIR)/setjmp.o
+$(TEST_DIR)/hyperv_stimer.elf: $(TEST_DIR)/hyperv.o
 
 arch_clean:
 	$(RM) $(TEST_DIR)/*.o $(TEST_DIR)/*.flat $(TEST_DIR)/*.elf \
diff --git a/x86/Makefile.i386 b/x86/Makefile.i386
index 8a4c45c..c4176c4 100644
--- a/x86/Makefile.i386
+++ b/x86/Makefile.i386
@@ -9,7 +9,3 @@ tests = $(TEST_DIR)/taskswitch.flat $(TEST_DIR)/taskswitch2.flat \
 	$(TEST_DIR)/cmpxchg8b.flat
 
 include $(TEST_DIR)/Makefile.common
-
-$(TEST_DIR)/cmpxchg8b.elf: $(cstart.o) $(TEST_DIR)/cmpxchg8b.o
-$(TEST_DIR)/taskswitch.elf: $(cstart.o) $(TEST_DIR)/taskswitch.o
-$(TEST_DIR)/taskswitch2.elf: $(cstart.o) $(TEST_DIR)/taskswitch2.o
diff --git a/x86/Makefile.x86_64 b/x86/Makefile.x86_64
index 6b7ccfb..e166911 100644
--- a/x86/Makefile.x86_64
+++ b/x86/Makefile.x86_64
@@ -16,3 +16,5 @@ tests += $(TEST_DIR)/vmx.flat
 tests += $(TEST_DIR)/tscdeadline_latency.flat
 
 include $(TEST_DIR)/Makefile.common
+
+$(TEST_DIR)/vmx.elf: $(TEST_DIR)/vmx_tests.o
-- 
2.5.0


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-05-10 15:31 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-05-08 13:18 [kvm-unit-tests Patch V2] x86: Makefile refine Wei Yang
2016-05-09 13:30 ` Andrew Jones
2016-05-10  8:09 ` Laurent Vivier
2016-05-10  9:16   ` Andrew Jones
2016-05-10 10:42     ` Laurent Vivier
2016-05-10 12:28 ` Paolo Bonzini
2016-05-10 15:31   ` Wei Yang

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