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########################################
# x86-specific definitions
HAS_ACPI := y
HAS_VGA := y
#
# If you change any of these configuration options then you must
# 'make clean' before rebuilding.
#
pae ?= n
supervisor_mode_kernel ?= n
CFLAGS += -nostdinc -fno-builtin -fno-common -fno-strict-aliasing
CFLAGS += -iwithprefix include -Werror -Wno-pointer-arith -pipe
CFLAGS += -I$(BASEDIR)/include
CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-generic
CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-default
# Prevent floating-point variables from creeping into Xen.
CFLAGS += -msoft-float
# Disable PIE/SSP if GCC supports them. They can break us.
CFLAGS += $(call test-gcc-flag,$(CC),-nopie)
CFLAGS += $(call test-gcc-flag,$(CC),-fno-stack-protector)
CFLAGS += $(call test-gcc-flag,$(CC),-fno-stack-protector-all)
ifeq ($(TARGET_SUBARCH)$(pae),x86_32y)
CFLAGS += -DCONFIG_X86_PAE=1
endif
ifeq ($(supervisor_mode_kernel),y)
CFLAGS += -DCONFIG_X86_SUPERVISOR_MODE_KERNEL=1
endif
ifeq ($(XEN_TARGET_ARCH),x86_32)
LDFLAGS += -m elf_i386
x86_32 := y
x86_64 := n
endif
ifeq ($(TARGET_SUBARCH),x86_64)
CFLAGS += -mno-red-zone -fpic -fno-reorder-blocks
CFLAGS += -fno-asynchronous-unwind-tables
# -fvisibility=hidden reduces -fpic cost, if it's available
CFLAGS += $(shell $(CC) -v --help 2>&1 | grep " -fvisibility=" | \
grep -q hidden && echo "-DGCC_HAS_VISIBILITY_ATTRIBUTE")
LDFLAGS += -m elf_x86_64
x86_32 := n
x86_64 := y
endif
HDRS += $(wildcard $(BASEDIR)/include/asm-x86/hvm/*.h)
HDRS += $(wildcard $(BASEDIR)/include/asm-x86/hvm/svm/*.h)
HDRS += $(wildcard $(BASEDIR)/include/asm-x86/hvm/vmx/*.h)
# Test for at least GCC v3.2.x.
gcc-ver = $(shell $(CC) -dumpversion | sed -e 's/^\(.\)\.\(.\)\.\(.\)/\$(1)/')
ifeq ($(call gcc-ver,1),1)
$(error gcc-1.x.x unsupported - upgrade to at least gcc-3.2.x)
endif
ifeq ($(call gcc-ver,1),2)
$(error gcc-2.x.x unsupported - upgrade to at least gcc-3.2.x)
endif
ifeq ($(call gcc-ver,1),3)
ifeq ($(call gcc-ver,2),0)
$(error gcc-3.0.x unsupported - upgrade to at least gcc-3.2.x)
endif
ifeq ($(call gcc-ver,2),1)
$(error gcc-3.1.x unsupported - upgrade to at least gcc-3.2.x)
endif
endif
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