[kvm-unit-tests GIT PULL 12/18] s390x/Makefile: Split snippet makefile rules into new file

[Nico Boehr <nrb@linux.ibm.com>]

From: Janosch Frank <frankja@linux.ibm.com>

It's time to move the snippet related Makefile parts into a new file
to make s390x/Makefile less busy.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Link: https://lore.kernel.org/r/20240806084409.169039-2-frankja@linux.ibm.com
[ nrb: fix out-of-tree build ]
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
---
 s390x/Makefile          | 39 ++++-----------------------------------
 s390x/snippets/Makefile | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 35 deletions(-)
 create mode 100644 s390x/snippets/Makefile

diff --git a/s390x/Makefile b/s390x/Makefile
index b3b2ae8c..e41a6433 100644
--- a/s390x/Makefile
+++ b/s390x/Makefile
@@ -123,10 +123,12 @@ asmlib = $(TEST_DIR)/cstart64.o $(TEST_DIR)/cpu.o
 
 FLATLIBS = $(libcflat)
 
+# Snippets
 SNIPPET_DIR = $(TEST_DIR)/snippets
 SNIPPET_SRC_DIR = $(SRCDIR)/s390x/snippets
 snippet_asmlib = $(SNIPPET_DIR)/c/cstart.o
 snippet_lib = $(snippet_asmlib) lib/auxinfo.o
+include $(SNIPPET_SRC_DIR)/Makefile
 
 # perquisites (=guests) for the snippet hosts.
 # $(TEST_DIR)/<snippet-host>.elf: snippets = $(SNIPPET_DIR)/<c/asm>/<snippet>.gbin
@@ -152,39 +154,6 @@ else
 snippet-hdr-obj =
 endif
 
-# the asm/c snippets %.o have additional generated files as dependencies
-$(SNIPPET_DIR)/asm/%.o: $(SNIPPET_SRC_DIR)/asm/%.S $(asm-offsets)
-	$(CC) $(CFLAGS) -c -nostdlib -o $@ $<
-
-$(SNIPPET_DIR)/c/%.o: SNIPPET_INCLUDE := $(SNIPPET_SRC_DIR)/lib
-$(SNIPPET_DIR)/c/%.o: $(SNIPPET_DIR)/c/%.c $(asm-offsets)
-	$(CC) $(CFLAGS) -c -nostdlib -o $@ $<
-
-$(SNIPPET_DIR)/asm/%.elf: $(SNIPPET_DIR)/asm/%.o $(SNIPPET_DIR)/asm/flat.lds
-	$(CC) $(LDFLAGS) -o $@ -T $(SNIPPET_DIR)/asm/flat.lds $<
-
-$(SNIPPET_DIR)/asm/%.gbin: $(SNIPPET_DIR)/asm/%.elf
-	$(OBJCOPY) -O binary -j ".rodata" -j ".lowcore" -j ".text" -j ".data" -j ".bss" --set-section-flags .bss=alloc,load,contents $< $@
-	truncate -s '%4096' $@
-
-$(SNIPPET_DIR)/c/%.elf: $(SNIPPET_DIR)/c/%.o $(snippet_lib) $(FLATLIBS) $(SNIPPET_DIR)/c/flat.lds
-	$(CC) $(LDFLAGS) -o $@ -T $(SNIPPET_DIR)/c/flat.lds $< $(snippet_lib) $(FLATLIBS)
-
-$(SNIPPET_DIR)/c/%.gbin: $(SNIPPET_DIR)/c/%.elf
-	$(OBJCOPY) -O binary -j ".rodata" -j ".lowcore" -j ".text" -j ".data" -j ".bss" --set-section-flags .bss=alloc,load,contents $< $@
-	truncate -s '%4096' $@
-
-%.hdr: %.gbin $(HOST_KEY_DOCUMENT)
-	$(GEN_SE_HEADER) -k $(HOST_KEY_DOCUMENT) -c $<,0x0,0x00000000000000420000000000000000 --psw-addr 0x4000 -o $@
-
-.SECONDARY:
-%.gobj: %.gbin
-	$(OBJCOPY) -I binary -O elf64-s390 -B "s390:64-bit" $< $@
-
-.SECONDARY:
-%.hdr.obj: %.hdr
-	$(OBJCOPY) -I binary -O elf64-s390 -B "s390:64-bit" $< $@
-
 lds-autodepend-flags = -MMD -MF $(dir $*).$(notdir $*).d -MT $@
 %.lds: %.lds.S $(asm-offsets)
 	$(CPP) $(lds-autodepend-flags) $(CPPFLAGS) -P -C -o $@ $<
@@ -238,8 +207,8 @@ $(snippet_asmlib): $$(patsubst %.o,%.S,$$@) $(asm-offsets)
 	$(CC) $(CFLAGS) -c -nostdlib -o $@ $<
 
 
-arch_clean: asm_offsets_clean
-	$(RM) $(TEST_DIR)/*.{o,elf,bin,lds} $(SNIPPET_DIR)/*/*.{o,elf,*bin,*obj,hdr,lds} $(SNIPPET_DIR)/asm/.*.d $(TEST_DIR)/.*.d lib/s390x/.*.d $(comm-key)
+arch_clean: asm_offsets_clean snippet_clean
+	$(RM) $(TEST_DIR)/*.{o,elf,bin,lds} $(TEST_DIR)/.*.d lib/s390x/.*.d $(comm-key)
 
 generated-files = $(asm-offsets)
 $(tests:.elf=.o) $(asmlib) $(cflatobjs): $(generated-files)
diff --git a/s390x/snippets/Makefile b/s390x/snippets/Makefile
new file mode 100644
index 00000000..ccadd733
--- /dev/null
+++ b/s390x/snippets/Makefile
@@ -0,0 +1,35 @@
+# the asm/c snippets %.o have additional generated files as dependencies
+$(SNIPPET_DIR)/asm/%.o: $(SNIPPET_SRC_DIR)/asm/%.S $(asm-offsets)
+	$(CC) $(CFLAGS) -c -nostdlib -o $@ $<
+
+$(SNIPPET_DIR)/c/%.o: SNIPPET_INCLUDE := $(SNIPPET_SRC_DIR)/lib
+$(SNIPPET_DIR)/c/%.o: $(SNIPPET_SRC_DIR)/c/%.c $(asm-offsets)
+	$(CC) $(CFLAGS) -c -nostdlib -o $@ $<
+
+$(SNIPPET_DIR)/asm/%.elf: $(SNIPPET_DIR)/asm/%.o $(SNIPPET_DIR)/asm/flat.lds
+	$(CC) $(LDFLAGS) -o $@ -T $(SNIPPET_SRC_DIR)/asm/flat.lds $<
+
+$(SNIPPET_DIR)/asm/%.gbin: $(SNIPPET_DIR)/asm/%.elf
+	$(OBJCOPY) -O binary -j ".rodata" -j ".lowcore" -j ".text" -j ".data" -j ".bss" --set-section-flags .bss=alloc,load,contents $< $@
+	truncate -s '%4096' $@
+
+$(SNIPPET_DIR)/c/%.elf: $(SNIPPET_DIR)/c/%.o $(snippet_lib) $(FLATLIBS) $(SNIPPET_DIR)/c/flat.lds
+	$(CC) $(LDFLAGS) -o $@ -T $(SNIPPET_DIR)/c/flat.lds $< $(snippet_lib) $(FLATLIBS)
+
+$(SNIPPET_DIR)/c/%.gbin: $(SNIPPET_DIR)/c/%.elf
+	$(OBJCOPY) -O binary -j ".rodata" -j ".lowcore" -j ".text" -j ".data" -j ".bss" --set-section-flags .bss=alloc,load,contents $< $@
+	truncate -s '%4096' $@
+
+%.hdr: %.gbin $(HOST_KEY_DOCUMENT)
+	$(GEN_SE_HEADER) -k $(HOST_KEY_DOCUMENT) -c $<,0x0,0x00000000000000420000000000000000 --psw-addr 0x4000 -o $@
+
+.SECONDARY:
+%.gobj: %.gbin
+	$(OBJCOPY) -I binary -O elf64-s390 -B "s390:64-bit" $< $@
+
+.SECONDARY:
+%.hdr.obj: %.hdr
+	$(OBJCOPY) -I binary -O elf64-s390 -B "s390:64-bit" $< $@
+
+snippet_clean:
+	$(RM) $(SNIPPET_DIR)/*/*.{o,elf,*bin,*obj,hdr,lds} $(SNIPPET_DIR)/asm/.*.d
-- 
2.47.1