[PULL,10/14] pc-bios/s390-ccw: Generate and include dependency files in the Makefile
diff mbox series

Message ID 20200703100650.621212-11-cohuck@redhat.com
State New
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  • [PULL,01/14] pc-bios: s390x: cio.c cleanup and compile fix
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Commit Message

Cornelia Huck July 3, 2020, 10:06 a.m. UTC
From: Thomas Huth <thuth@redhat.com>

The Makefile of the s390-ccw bios does not handle dependencies of the
*.c files from the headers yet, so that you often have to run a "make
clean" to get the build right when one of the headers has been changed.
Let's make sure that we generate and include dependency files for all
*.c files now to avoid this problem in the future.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200630142955.7662-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
 pc-bios/s390-ccw/Makefile    |  3 +++
 pc-bios/s390-ccw/netboot.mak | 13 +++++++------
 2 files changed, 10 insertions(+), 6 deletions(-)

diff mbox series

diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index a048b6b077a9..50bc8802724f 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -38,5 +38,8 @@  s390-netboot.img:
 	@echo "s390-netboot.img not built since roms/SLOF/ is not available."
+-include $(ALL_OBJS:%.o=%.d)
 	rm -f *.o *.d *.img *.elf *~ *.a
diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak
index 5eefb7c28939..577c023afe3d 100644
--- a/pc-bios/s390-ccw/netboot.mak
+++ b/pc-bios/s390-ccw/netboot.mak
@@ -1,8 +1,7 @@ 
-NETOBJS := start.o sclp.o cio.o virtio.o virtio-net.o jump2ipl.o netmain.o \
-	   libnet.a libc.a
+NETOBJS := start.o sclp.o cio.o virtio.o virtio-net.o jump2ipl.o netmain.o
 LIBC_INC := -nostdinc -I$(SLOF_DIR)/lib/libc/include
 LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
@@ -11,15 +10,16 @@  NETLDFLAGS := $(LDFLAGS) -Ttext=0x7800000
-s390-netboot.elf: $(NETOBJS)
-	$(call quiet-command,$(CC) $(NETLDFLAGS) -o $@ $(NETOBJS),"BUILD","$(TARGET_DIR)$@")
+s390-netboot.elf: $(NETOBJS) libnet.a libc.a
+	$(call quiet-command,$(CC) $(NETLDFLAGS) -o $@ $^,"BUILD","$(TARGET_DIR)$@")
 s390-netboot.img: s390-netboot.elf
 	$(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@")
 # libc files:
+	      -MMD -MP -MT $@ -MF $(@:%.o=%.d)
 CTYPE_OBJS = isdigit.o isxdigit.o toupper.o
 %.o : $(SLOF_DIR)/lib/libc/ctype/%.c
@@ -52,7 +52,8 @@  libc.a: $(LIBCOBJS)
 LIBNETOBJS := args.o dhcp.o dns.o icmpv6.o ipv6.o tcp.o udp.o bootp.o \
 	      dhcpv6.o ethernet.o ipv4.o ndp.o tftp.o pxelinux.o
+	       -DDHCPARCH=0x1F -MMD -MP -MT $@ -MF $(@:%.o=%.d)
 %.o : $(SLOF_DIR)/lib/libnet/%.c
 	$(call quiet-command,$(CC) $(LIBNETCFLAGS) -c -o $@ $<,"CC","$(TARGET_DIR)$@")