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https://github.com/qemu/qemu.git
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f80ea9862f
The existing test whether "-lm" needs to be included or not is insufficient as it reports false negative on Fedora20/ppc64. This happens because sin(0.0) is a constant value which compiler can safely throw away and therefore there is no need to add "-lm". As the result, qemu-nbd/qemu-io/qemu-img tools cannot compile. This adds a global variable and uses it in the test to prevent from optimization. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> [Use Peter's improvement on the test to fool LTO, and remove the now useless -lm addition in Makefile.target. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
198 lines
5.5 KiB
Makefile
198 lines
5.5 KiB
Makefile
# -*- Mode: makefile -*-
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include ../config-host.mak
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include config-target.mak
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include config-devices.mak
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include $(SRC_PATH)/rules.mak
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$(call set-vpath, $(SRC_PATH))
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ifdef CONFIG_LINUX
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QEMU_CFLAGS += -I../linux-headers
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endif
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QEMU_CFLAGS += -I.. -I$(SRC_PATH)/target-$(TARGET_BASE_ARCH) -DNEED_CPU_H
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QEMU_CFLAGS+=-I$(SRC_PATH)/include
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ifdef CONFIG_USER_ONLY
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# user emulator name
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QEMU_PROG=qemu-$(TARGET_NAME)
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QEMU_PROG_BUILD = $(QEMU_PROG)
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else
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# system emulator name
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QEMU_PROG=qemu-system-$(TARGET_NAME)$(EXESUF)
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ifneq (,$(findstring -mwindows,$(libs_softmmu)))
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# Terminate program name with a 'w' because the linker builds a windows executable.
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QEMU_PROGW=qemu-system-$(TARGET_NAME)w$(EXESUF)
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$(QEMU_PROG): $(QEMU_PROGW)
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$(call quiet-command,$(OBJCOPY) --subsystem console $(QEMU_PROGW) $(QEMU_PROG)," GEN $(TARGET_DIR)$(QEMU_PROG)")
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QEMU_PROG_BUILD = $(QEMU_PROGW)
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else
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QEMU_PROG_BUILD = $(QEMU_PROG)
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endif
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endif
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PROGS=$(QEMU_PROG) $(QEMU_PROGW)
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STPFILES=
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config-target.h: config-target.h-timestamp
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config-target.h-timestamp: config-target.mak
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ifdef CONFIG_TRACE_SYSTEMTAP
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stap: $(QEMU_PROG).stp-installed $(QEMU_PROG).stp
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ifdef CONFIG_USER_ONLY
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TARGET_TYPE=user
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else
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TARGET_TYPE=system
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endif
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$(QEMU_PROG).stp-installed: $(SRC_PATH)/trace-events
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$(call quiet-command,$(TRACETOOL) \
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--format=stap \
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--backends=$(TRACE_BACKENDS) \
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--binary=$(bindir)/$(QEMU_PROG) \
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--target-name=$(TARGET_NAME) \
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--target-type=$(TARGET_TYPE) \
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< $< > $@," GEN $(TARGET_DIR)$(QEMU_PROG).stp-installed")
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$(QEMU_PROG).stp: $(SRC_PATH)/trace-events
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$(call quiet-command,$(TRACETOOL) \
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--format=stap \
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--backends=$(TRACE_BACKENDS) \
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--binary=$(realpath .)/$(QEMU_PROG) \
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--target-name=$(TARGET_NAME) \
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--target-type=$(TARGET_TYPE) \
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< $< > $@," GEN $(TARGET_DIR)$(QEMU_PROG).stp")
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else
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stap:
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endif
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all: $(PROGS) stap
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# Dummy command so that make thinks it has done something
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@true
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#########################################################
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# cpu emulator library
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obj-y = exec.o translate-all.o cpu-exec.o
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obj-y += tcg/tcg.o tcg/optimize.o
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obj-$(CONFIG_TCG_INTERPRETER) += tci.o
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obj-$(CONFIG_TCG_INTERPRETER) += disas/tci.o
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obj-y += fpu/softfloat.o
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obj-y += target-$(TARGET_BASE_ARCH)/
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obj-y += disas.o
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obj-$(call notempty,$(TARGET_XML_FILES)) += gdbstub-xml.o
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obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
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obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decContext.o
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obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decNumber.o
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obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal32.o
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obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal64.o
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obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal128.o
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#########################################################
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# Linux user emulator target
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ifdef CONFIG_LINUX_USER
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QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR) -I$(SRC_PATH)/linux-user
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obj-y += linux-user/
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obj-y += gdbstub.o thunk.o user-exec.o
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endif #CONFIG_LINUX_USER
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#########################################################
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# BSD user emulator target
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ifdef CONFIG_BSD_USER
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QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ABI_DIR) \
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-I$(SRC_PATH)/bsd-user/$(HOST_VARIANT_DIR)
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obj-y += bsd-user/
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obj-y += gdbstub.o user-exec.o
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endif #CONFIG_BSD_USER
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#########################################################
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# System emulator target
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ifdef CONFIG_SOFTMMU
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obj-y += arch_init.o cpus.o monitor.o gdbstub.o balloon.o ioport.o numa.o
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obj-y += qtest.o
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obj-y += hw/
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obj-$(CONFIG_FDT) += device_tree.o
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obj-$(CONFIG_KVM) += kvm-all.o
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obj-y += memory.o savevm.o cputlb.o
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obj-y += memory_mapping.o
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obj-y += dump.o
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LIBS+=$(libs_softmmu)
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# xen support
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obj-$(CONFIG_XEN) += xen-common.o
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obj-$(CONFIG_XEN_I386) += xen-hvm.o xen-mapcache.o
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obj-$(call lnot,$(CONFIG_XEN)) += xen-common-stub.o
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obj-$(call lnot,$(CONFIG_XEN_I386)) += xen-hvm-stub.o
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# Hardware support
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ifeq ($(TARGET_NAME), sparc64)
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obj-y += hw/sparc64/
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else
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obj-y += hw/$(TARGET_BASE_ARCH)/
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endif
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GENERATED_HEADERS += hmp-commands.h qmp-commands-old.h
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endif # CONFIG_SOFTMMU
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# Workaround for http://gcc.gnu.org/PR55489, see configure.
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%/translate.o: QEMU_CFLAGS += $(TRANSLATE_OPT_CFLAGS)
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dummy := $(call unnest-vars,,obj-y)
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all-obj-y := $(obj-y)
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block-obj-y :=
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common-obj-y :=
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include $(SRC_PATH)/Makefile.objs
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dummy := $(call unnest-vars,.., \
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block-obj-y \
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block-obj-m \
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common-obj-y \
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common-obj-m)
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all-obj-y += $(common-obj-y)
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all-obj-$(CONFIG_SOFTMMU) += $(block-obj-y)
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# build either PROG or PROGW
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$(QEMU_PROG_BUILD): $(all-obj-y) ../libqemuutil.a ../libqemustub.a
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$(call LINK,$^)
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gdbstub-xml.c: $(TARGET_XML_FILES) $(SRC_PATH)/scripts/feature_to_c.sh
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$(call quiet-command,rm -f $@ && $(SHELL) $(SRC_PATH)/scripts/feature_to_c.sh $@ $(TARGET_XML_FILES)," GEN $(TARGET_DIR)$@")
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hmp-commands.h: $(SRC_PATH)/hmp-commands.hx
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$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@," GEN $(TARGET_DIR)$@")
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qmp-commands-old.h: $(SRC_PATH)/qmp-commands.hx
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$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@," GEN $(TARGET_DIR)$@")
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clean:
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rm -f *.a *~ $(PROGS)
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rm -f $(shell find . -name '*.[od]')
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rm -f hmp-commands.h qmp-commands-old.h gdbstub-xml.c
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ifdef CONFIG_TRACE_SYSTEMTAP
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rm -f *.stp
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endif
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install: all
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ifneq ($(PROGS),)
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$(call install-prog,$(PROGS),$(DESTDIR)$(bindir))
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endif
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ifdef CONFIG_TRACE_SYSTEMTAP
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$(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset"
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$(INSTALL_DATA) $(QEMU_PROG).stp-installed "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset/$(QEMU_PROG).stp"
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endif
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GENERATED_HEADERS += config-target.h
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Makefile: $(GENERATED_HEADERS)
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