diff options
| author | Paolo Bonzini | 2022-09-29 13:41:54 +0200 |
|---|---|---|
| committer | Alex Bennée | 2022-10-06 12:53:40 +0200 |
| commit | ebc1d8213cb7807069f42191dcbfc05b6f9ebb0e (patch) | |
| tree | 82044ac7a4f42414737ca7c3b343a4b28b3897fe /pc-bios | |
| parent | pc-bios/optionrom: detect CC options just once (diff) | |
| download | qemu-ebc1d8213cb7807069f42191dcbfc05b6f9ebb0e.tar.gz qemu-ebc1d8213cb7807069f42191dcbfc05b6f9ebb0e.tar.xz qemu-ebc1d8213cb7807069f42191dcbfc05b6f9ebb0e.zip | |
pc-bios/s390-ccw: detect CC options just once
In preparation for adding Docker container support, detect compiler options
just once rather than once per Make run; container startup overhead is
substantial and doing the detection just once makes things faster.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-15-alex.bennee@linaro.org>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/Makefile | 33 | ||||
| -rw-r--r-- | pc-bios/s390-ccw/netboot.mak | 7 |
2 files changed, 27 insertions, 13 deletions
diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile index c8784c2a08..965e633f43 100644 --- a/pc-bios/s390-ccw/Makefile +++ b/pc-bios/s390-ccw/Makefile @@ -6,9 +6,12 @@ include config-host.mak CFLAGS = -O2 -g MAKEFLAGS += -rR +NULL := +SPACE := $(NULL) # +TARGET_PREFIX := $(patsubst %/,%:$(SPACE),$(TARGET_DIR)) + +quiet-@ = $(if $(V),,@) quiet-command = $(if $(V),$1,$(if $(2),@printf " %-7s %s\n" $2 $3 && $1, @$1)) -cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \ - >/dev/null 2>&1 && echo OK),$2,$3) VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.sh %.rc Kconfig% %.json.in set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1))) @@ -25,22 +28,33 @@ QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d $(call quiet-command,$(CCAS) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \ -c -o $@ $<,"CCAS","$(TARGET_DIR)$@") -.PHONY : all clean build-all +.PHONY : all clean build-all distclean OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \ virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o -EXTRA_CFLAGS := $(EXTRA_CFLAGS) -Wall -EXTRA_CFLAGS += $(call cc-option,-Werror $(EXTRA_CFLAGS),-Wno-stringop-overflow) +EXTRA_CFLAGS += -Wall EXTRA_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables -EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS), -fno-stack-protector) -EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS), -Wno-array-bounds) EXTRA_CFLAGS += -msoft-float -EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS),-march=z900,-march=z10) EXTRA_CFLAGS += -std=gnu99 LDFLAGS += -Wl,-pie -nostdlib +cc-test = $(CC) -Werror $1 -c -o /dev/null -xc /dev/null >/dev/null 2>/dev/null +cc-option = if $(call cc-test, $1); then \ + echo "$(TARGET_PREFIX)$1 detected" && echo "EXTRA_CFLAGS += $1" >&3; else \ + echo "$(TARGET_PREFIX)$1 not detected" $(if $2,&& echo "EXTRA_CFLAGS += $2" >&3); fi + +config-cc.mak: Makefile + $(quiet-@)($(call cc-option,-Wno-stringop-overflow); \ + $(call cc-option,-fno-stack-protector); \ + $(call cc-option,-Wno-array-bounds); \ + $(call cc-option,-Wno-gnu); \ + $(call cc-option,-march=z900,-march=z10)) 3> config-cc.mak +-include config-cc.mak + +LDFLAGS += -Wl,-pie -nostdlib + build-all: s390-ccw.img s390-netboot.img s390-ccw.elf: $(OBJECTS) @@ -63,3 +77,6 @@ ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS)) clean: rm -f *.o *.d *.img *.elf *~ *.a + +distclean: + rm -f config-cc.mak diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak index 7639da194c..ee59a5f4de 100644 --- a/pc-bios/s390-ccw/netboot.mak +++ b/pc-bios/s390-ccw/netboot.mak @@ -16,12 +16,9 @@ s390-netboot.elf: $(NETOBJS) libnet.a libc.a s390-netboot.img: s390-netboot.elf $(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@") -# SLOF is GCC-only, so ignore warnings about GNU extensions with Clang here -NO_GNU_WARN := $(call cc-option,-Werror $(QEMU_CFLAGS),-Wno-gnu) - # libc files: -LIBC_CFLAGS = $(EXTRA_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \ +LIBC_CFLAGS = $(EXTRA_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \ -MMD -MP -MT $@ -MF $(@:%.o=%.d) CTYPE_OBJS = isdigit.o isxdigit.o toupper.o @@ -55,7 +52,7 @@ 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 = $(EXTRA_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \ +LIBNETCFLAGS = $(EXTRA_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \ -DDHCPARCH=0x1F -MMD -MP -MT $@ -MF $(@:%.o=%.d) %.o : $(SLOF_DIR)/lib/libnet/%.c |