# -*- Makefile -*-

include $(LEVEL)/Makefile.config

# Include LLVM's Master Makefile config and rules.
include $(LLVM_OBJ_ROOT)/Makefile.config

# Filters out -fstack-protector-strong which is not understood by clang 3.4 or below
# yet is present in Makefile.config of some distros such as Debian Jessie
ifeq ($(shell test $(LLVM_VERSION_MAJOR) -le 3 -a $(LLVM_VERSION_MINOR) -le 4; echo $$?),0)
  CFLAGS := $(filter-out -fstack-protector-strong,$(CFLAGS))
  CXXFLAGS := $(filter-out -fstack-protector-strong,$(CXXFLAGS))
endif

# Assertions should be enabled by default for KLEE (but they can still
# be disabled by running make with DISABLE_ASSERTIONS=1
DISABLE_ASSERTIONS := 0

BUILDING_RUNTIME:=$(if $(or $(BYTECODE_LIBRARY),$(MODULE_NAME)),1,0)
ifeq ($(BUILDING_RUNTIME),1)
#
# Override make variables based on the runtime configuration. We want
# to override whatever the user may have said on the command line,
# hence the use of override.
#
override ENABLE_OPTIMIZED := $(RUNTIME_ENABLE_OPTIMIZED)
override DISABLE_ASSERTIONS := $(RUNTIME_DISABLE_ASSERTIONS)
override ENABLE_PROFILING := $(RUNTIME_ENABLE_PROFILING)
override ENABLE_COVERAGE := $(RUNTIME_ENABLE_COVERAGE)
override DEBUG_SYMBOLS := $(RUNTIME_DEBUG_SYMBOLS)
endif
BYTECODE_DESTINATION:=$(DESTDIR)$(PROJ_libdir)/klee/runtime

include $(PROJ_SRC_ROOT)/Makefile.rules

# We have to build the bytecode install directory manually.
# FIXME: Doing it this way is potentially racey!
install::
	$(MKDIR) $(BYTECODE_DESTINATION)

# LLVMCC was added in 2.7.
ifeq ($(LLVMCC),)
LLVMCC := $(LLVMGCC)
LLVMCXX := $(LLVMGXX)
endif

# Deliberately override the host compiler
# so that we use what was detected when KLEE was configured
# and not LLVM.
CC := $(KLEE_HOST_C_COMPILER)
CXX := $(KLEE_HOST_CXX_COMPILER)

# Needed to build runtime library using clang (gnu89 is the gcc default)
C.Flags += -std=gnu89

# Build using C++11 if requested
ifeq ($(KLEE_USE_CXX11),1)
	CXX.Flags += -std=c++11
endif

# This is filename that KLEE will look for when trying to load klee-uclibc
KLEE_UCLIBC_BCA_NAME="klee-uclibc.bca"

ifneq ($(ENABLE_STP),0)
  CXX.Flags += $(STP_CFLAGS)
  CXX.Flags += -DEXT_HASH_MAP
endif

ifneq ($(ENABLE_Z3),0)
  CXX.Flags += $(Z3_CFLAGS)
endif

CXX.Flags += -DKLEE_DIR=\"$(PROJ_OBJ_ROOT)\" -DKLEE_INSTALL_BIN_DIR=\"$(PROJ_bindir)\"
CXX.Flags += -DKLEE_INSTALL_RUNTIME_DIR=\"$(BYTECODE_DESTINATION)\"

ifeq ($(ENABLE_UCLIBC),1)
	CXX.Flags += -DKLEE_UCLIBC_BCA_NAME=\"$(KLEE_UCLIBC_BCA_NAME)\"
endif

# For metaSMT
include $(PROJ_SRC_ROOT)/MetaSMT.mk

# If building KLEE with the Sanitizers don't build the runtime with it
# because KLEE doesn't know how to handle it.
ifneq ("X$(MODULE_NAME)$(BYTECODE_LIBRARY)X","XX")
  CFLAGS := $(filter-out -fsanitize=%,$(CFLAGS))
endif