mirror of
https://github.com/xen-project/xen.git
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Keir Fraser
43aa5ed8c0
Fixes correctness issues with xenstored and gcc-4.2. Original patch by Charles Coffing <ccoffing@novell.com> Signed-off-by: Keir Fraser <keir@xensource.com>
100 lines
3.0 KiB
Makefile
100 lines
3.0 KiB
Makefile
# -*- mode: Makefile; -*-
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# A debug build of Xen and tools?
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debug ?= n
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XEN_COMPILE_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/ \
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-e s/ppc/powerpc/ -e s/i86pc/x86_32/)
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XEN_TARGET_ARCH ?= $(XEN_COMPILE_ARCH)
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XEN_OS ?= $(shell uname -s)
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ifeq ($(XEN_TARGET_ARCH),x86_32)
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XEN_TARGET_X86_PAE ?= y
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endif
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CONFIG_$(XEN_OS) := y
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SHELL ?= /bin/sh
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# Tools to run on system hosting the build
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HOSTCC = gcc
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HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
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HOSTCFLAGS += -fno-strict-aliasing
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DISTDIR ?= $(XEN_ROOT)/dist
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DESTDIR ?= /
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include $(XEN_ROOT)/config/$(XEN_OS).mk
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include $(XEN_ROOT)/config/$(XEN_TARGET_ARCH).mk
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ifneq ($(EXTRA_PREFIX),)
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EXTRA_INCLUDES += $(EXTRA_PREFIX)/include
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EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBDIR)
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endif
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# cc-option: Check if compiler supports first option, else fall back to second.
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# Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586)
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cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
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/dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
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# cc-ver: Check compiler is at least specified version. Return boolean 'y'/'n'.
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# Usage: ifeq ($(call cc-ver,$(CC),0x030400),y)
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cc-ver = $(shell if [ $$((`$(1) -dumpversion | awk -F. \
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'{ printf "0x%02x%02x%02x", $$1, $$2, $$3}'`)) -ge $$(($(2))) ]; \
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then echo y; else echo n; fi ;)
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# cc-ver-check: Check compiler is at least specified version, else fail.
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# Usage: $(call cc-ver-check,CC,0x030400,"Require at least gcc-3.4")
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cc-ver-check = $(eval $(call cc-ver-check-closure,$(1),$(2),$(3)))
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define cc-ver-check-closure
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ifeq ($$(call cc-ver,$$($(1)),$(2)),n)
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override $(1) = echo "*** FATAL BUILD ERROR: "$(3) >&2; exit 1;
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cc-option := n
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endif
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endef
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ifneq ($(debug),y)
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CFLAGS += -DNDEBUG
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else
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CFLAGS += -g
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endif
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CFLAGS += -fno-strict-aliasing
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CFLAGS += -std=gnu99
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CFLAGS += -Wall -Wstrict-prototypes
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# -Wunused-value makes GCC 4.x too aggressive for my taste: ignoring the
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# result of any casted expression causes a warning.
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CFLAGS += -Wno-unused-value
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HOSTCFLAGS += $(call cc-option,$(HOSTCC),-Wdeclaration-after-statement,)
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CFLAGS += $(call cc-option,$(CC),-Wdeclaration-after-statement,)
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LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i))
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CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i))
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# If ACM_SECURITY = y, then the access control module is compiled
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# into Xen and the policy type can be set by the boot policy file
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# y - Build the Xen ACM framework
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# n - Do not build the Xen ACM framework
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ACM_SECURITY ?= n
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# If ACM_SECURITY = y and no boot policy file is installed,
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# then the ACM defaults to the security policy set by
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# ACM_DEFAULT_SECURITY_POLICY
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# Supported models are:
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# ACM_NULL_POLICY
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# ACM_CHINESE_WALL_AND_SIMPLE_TYPE_ENFORCEMENT_POLICY
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ACM_DEFAULT_SECURITY_POLICY ?= ACM_NULL_POLICY
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# Optional components
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XENSTAT_XENTOP ?= y
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VTPM_TOOLS ?= n
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LIBXENAPI_BINDINGS ?= n
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XENFB_TOOLS ?= n
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PYTHON_TOOLS ?= y
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-include $(XEN_ROOT)/.config
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