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authorThomas Huth <thuth@redhat.com>2020-06-30 16:17:30 +0200
committerThomas Huth <thuth@redhat.com>2020-07-02 10:00:58 +0200
commit1c9f655066d1defbe083ef06723be919cdfc13dc (patch)
tree3c9b9b873c00bb498b385750d87a97f55be34176 /pc-bios/s390-ccw
parent9598c227aaff9f0c2ee7aee5b8013600b71bca15 (diff)
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pc-bios/s390-ccw: Generate and include dependency files in the Makefile
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>
Diffstat (limited to 'pc-bios/s390-ccw')
-rw-r--r--pc-bios/s390-ccw/Makefile3
-rw-r--r--pc-bios/s390-ccw/netboot.mak13
2 files changed, 10 insertions, 6 deletions
diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index a048b6b..50bc880 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."
endif
+ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS))
+-include $(ALL_OBJS:%.o=%.d)
+
clean:
rm -f *.o *.d *.img *.elf *~ *.a
diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak
index 5eefb7c..577c023 100644
--- a/pc-bios/s390-ccw/netboot.mak
+++ b/pc-bios/s390-ccw/netboot.mak
@@ -1,8 +1,7 @@
SLOF_DIR := $(SRC_PATH)/roms/SLOF
-NETOBJS := start.o sclp.o cio.o virtio.o virtio-net.o jump2ipl.o netmain.o \
- libnet.a libc.a
+NETOBJS := start.o sclp.o cio.o virtio.o virtio-net.o jump2ipl.o netmain.o
LIBC_INC := -nostdinc -I$(SLOF_DIR)/lib/libc/include
LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
@@ -11,15 +10,16 @@ NETLDFLAGS := $(LDFLAGS) -Ttext=0x7800000
$(NETOBJS): QEMU_CFLAGS += $(LIBC_INC) $(LIBNET_INC)
-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:
-LIBC_CFLAGS := $(QEMU_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC)
+LIBC_CFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \
+ -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
-LIBNETCFLAGS := $(QEMU_CFLAGS) $(CFLAGS) -DDHCPARCH=0x1F $(LIBC_INC) $(LIBNET_INC)
+LIBNETCFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \
+ -DDHCPARCH=0x1F -MMD -MP -MT $@ -MF $(@:%.o=%.d)
%.o : $(SLOF_DIR)/lib/libnet/%.c
$(call quiet-command,$(CC) $(LIBNETCFLAGS) -c -o $@ $<,"CC","$(TARGET_DIR)$@")