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Makefile.uk
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Makefile.uk
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################################################################################
#
# Global Unikraft definitions
#
################################################################################
COMPFLAGS += -nostdinc -nostdlib
COMPFLAGS += -U __linux__ -U __FreeBSD__ -U __sun__
COMPFLAGS += -fno-omit-frame-pointer -fno-tree-sra -fno-split-stack
ifneq ($(HAVE_STACKPROTECTOR),y)
COMPFLAGS += -fno-stack-protector
endif
COMPFLAGS += -Wall -Wextra
ASFLAGS += -D__ASSEMBLY__
ASINCLUDES += -I$(CONFIG_UK_BASE)/include
CINCLUDES += -I$(CONFIG_UK_BASE)/include
CXXINCLUDES += -I$(CONFIG_UK_BASE)/include
GOCINCLUDES += -I$(CONFIG_UK_BASE)/include
# Set the text and data sections to be readable and writable. Also,
# do not page-align the data segment. If the output format supports
# Unix style magic numbers, mark the output as OMAGIC.
LIBLDFLAGS += -nostdinc -nostdlib -Wl,--omagic -Wl,-r -Wl,-d -Wl,--build-id=none
LDFLAGS += -nostdinc -nostdlib -Wl,--omagic -Wl,--build-id=none
COMPFLAGS-$(CONFIG_OPTIMIZE_NONE) += -O0 -fno-optimize-sibling-calls -fno-tree-vectorize
COMPFLAGS-$(CONFIG_OPTIMIZE_SIZE) += -Os
COMPFLAGS-$(CONFIG_OPTIMIZE_PERF) += -O2
COMPFLAGS-$(CONFIG_OPTIMIZE_DEADELIM) += -fdata-sections -ffunction-sections
LDFLAGS-$(CONFIG_OPTIMIZE_DEADELIM) += -Wl,--gc-sections
# LTO requires the compiler flags to be handed over also for linking
COMPFLAGS-$(CONFIG_OPTIMIZE_LTO) += -flto
LIBLDFLAGS-$(CONFIG_OPTIMIZE_LTO) += $(COMPFLAGS) $(COMPFLAGS-y) $(ARCHFLAGS) $(ARCHFLAGS-y)
LDFLAGS-$(CONFIG_OPTIMIZE_LTO) += $(COMPFLAGS) $(COMPFLAGS-y) $(ARCHFLAGS) $(ARCHFLAGS-y)
DBGFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL0) += -g0
DBGFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL1) += -g1
DBGFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL2) += -g2
DBGFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL3) += -g3
COMPFLAGS += -D __Unikraft__ -DUK_CODENAME="$(UK_CODENAME)"
COMPFLAGS += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION)
COMPFLAGS += -DUK_FULLVERSION=$(UK_FULLVERSION)
ISR_ARCHFLAGS += -D__INTERRUPTSAFE__
M4FLAGS += -D __Unikraft__ -DUK_CODENAME="$(UK_CODENAME)"
M4FLAGS += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION)
# If GCC supports "-no-pie" flag, we will add this flag to link flags to
# override "pie" option, because some distributions will set
# "--enable-default-pie" by default.
COMPFLAGS-$(call gcc_version_ge,6,1) += -no-pie
LIBLDFLAGS-$(call gcc_version_ge,6,1) += -no-pie
LDFLAGS-$(call gcc_version_ge,6,1) += -no-pie