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# This is a procedure to define the targets for building
# the runtime.
#
# Argument 1 is the target triple.
#
# This is not really the right place to explain this, but
# for those of you who are not Makefile gurus, let me briefly
# cover the $ expansion system in use here, because it
# confused me for a while! The variable DEF_RUNTIME_TARGETS
# will be defined once and then expanded with different
# values substituted for $(1) each time it is called.
# That resulting text is then eval'd.
#
# For most variables, you could use a single $ sign. The result
# is that the substitution would occur when the CALL occurs,
# I believe. The problem is that the automatic variables $< and $@
# need to be expanded-per-rule. Therefore, for those variables at
# least, you need $$< and $$@ in the variable text. This way, after
# the CALL substitution occurs, you will have $< and $@. This text
# will then be evaluated, and all will work as you like.
#
# Reader beware, this explanantion could be wrong, but it seems to
# fit the experimental data (i.e., I was able to get the system
# working under these assumptions).
# Hack for passing flags into LIBUV, see below.
LIBUV_FLAGS_i386 = -m32 -fPIC
LIBUV_FLAGS_x86_64 = -m64 -fPIC
# when we're doing a snapshot build, we intentionally degrade as many
# features in libuv and the runtime as possible, to ease portability.
SNAP_DEFINES:=
ifneq ($(strip $(findstring snap,$(MAKECMDGOALS))),)
SNAP_DEFINES=-DRUST_SNAPSHOT
endif
define DEF_RUNTIME_TARGETS
######################################################################
# Runtime (C++) library variables
######################################################################
RUNTIME_CS_$(1) := \
rt/sync/timer.cpp \
rt/sync/lock_and_signal.cpp \
rt/sync/rust_thread.cpp \
rt/rust.cpp \
rt/rust_builtin.cpp \
rt/rust_run_program.cpp \
rt/rust_env.cpp \
rt/rust_sched_loop.cpp \
rt/rust_sched_launcher.cpp \
rt/rust_sched_driver.cpp \
rt/rust_scheduler.cpp \
rt/rust_sched_reaper.cpp \
rt/rust_task.cpp \
rt/rust_stack.cpp \
rt/rust_port.cpp \
rt/rust_upcall.cpp \
rt/rust_uv.cpp \
rt/rust_crate_map.cpp \
rt/rust_log.cpp \
rt/rust_gc_metadata.cpp \
rt/rust_port_selector.cpp \
rt/rust_util.cpp \
rt/circular_buffer.cpp \
rt/isaac/randport.cpp \
rt/miniz.cpp \
rt/rust_kernel.cpp \
rt/rust_shape.cpp \
rt/rust_abi.cpp \
rt/rust_cc.cpp \
rt/rust_debug.cpp \
rt/rust_box_annihilator.cpp \
rt/memory_region.cpp \
rt/boxed_region.cpp \
rt/arch/$$(HOST_$(1))/context.cpp \
rt/arch/$$(HOST_$(1))/gpr.cpp
RUNTIME_S_$(1) := rt/arch/$$(HOST_$(1))/_context.S \
rt/arch/$$(HOST_$(1))/ccall.S \
rt/arch/$$(HOST_$(1))/record_sp.S
ifeq ($$(HOST_$(1)), i386)
LIBUV_ARCH_$(1) := ia32
else
LIBUV_ARCH_$(1) := x86_64
endif
ifeq ($$(CFG_WINDOWSY), 1)
LIBUV_OSTYPE_$(1) := win
LIBUV_LIB_$(1) := rt/$(1)/libuv/Release/obj.target/src/libuv/libuv.a
else ifeq ($(CFG_OSTYPE), apple-darwin)
LIBUV_OSTYPE_$(1) := mac
LIBUV_LIB_$(1) := rt/$(1)/libuv/Release/libuv.a
else ifeq ($(CFG_OSTYPE), unknown-freebsd)
LIBUV_OSTYPE_$(1) := unix/freebsd
LIBUV_LIB_$(1) := rt/$(1)/libuv/Release/obj.target/src/libuv/libuv.a
else
LIBUV_OSTYPE_$(1) := unix/linux
LIBUV_LIB_$(1) := rt/$(1)/libuv/Release/obj.target/src/libuv/libuv.a
endif
RUNTIME_DEF_$(1) := rt/rustrt$$(CFG_DEF_SUFFIX)
RUNTIME_INCS_$(1) := -I $$(S)src/rt -I $$(S)src/rt/isaac -I $$(S)src/rt/uthash \
-I $$(S)src/rt/arch/$$(HOST_$(1)) \
-I $$(S)src/libuv/include
RUNTIME_OBJS_$(1) := $$(RUNTIME_CS_$(1):rt/%.cpp=rt/$(1)/%.o) \
$$(RUNTIME_S_$(1):rt/%.S=rt/$(1)/%.o)
ALL_OBJ_FILES += $$(RUNTIME_OBJS_$(1))
MORESTACK_OBJ_$(1) := rt/$(1)/arch/$$(HOST_$(1))/morestack.o
ALL_OBJ_FILES += $$(MORESTACK_OBJS_$(1))
RUNTIME_LIBS_$(1) := $$(LIBUV_LIB_$(1))
rt/$(1)/%.o: rt/%.cpp $$(MKFILE_DEPS)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_COMPILE_C_$(1), $$@, $$(RUNTIME_INCS_$(1)) \
$$(SNAP_DEFINES)) $$<
rt/$(1)/%.o: rt/%.S $$(MKFILE_DEPS) \
$$(LLVM_CONFIG_$$(CFG_HOST_TRIPLE))
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
rt/$(1)/arch/$$(HOST_$(1))/libmorestack.a: $$(MORESTACK_OBJ_$(1))
@$$(call E, link: $$@)
$$(Q)ar rcs $$@ $$<
rt/$(1)/$(CFG_RUNTIME): $$(RUNTIME_OBJS_$(1)) $$(MKFILE_DEPS) \
$$(RUNTIME_DEF_$(1)) \
$$(RUNTIME_LIBS_$(1))
@$$(call E, link: $$@)
$$(Q)$$(call CFG_LINK_C_$(1),$$@, $$(RUNTIME_OBJS_$(1)) \
$$(CFG_GCCISH_POST_LIB_FLAGS) $$(RUNTIME_LIBS_$(1)) \
$$(CFG_LIBUV_LINK_FLAGS),$$(RUNTIME_DEF_$(1)),$$(CFG_RUNTIME))
# FIXME: For some reason libuv's makefiles can't figure out the
# correct definition of CC on the mingw I'm using, so we are
# explicitly using gcc. Also, we have to list environment variables
# first on windows... mysterious
ifdef CFG_ENABLE_FAST_MAKE
LIBUV_DEPS := $$(S)/.gitmodules
else
LIBUV_DEPS := $$(wildcard \
$$(S)src/libuv/* \
$$(S)src/libuv/*/* \
$$(S)src/libuv/*/*/* \
$$(S)src/libuv/*/*/*/*)
endif
$$(LIBUV_LIB_$(1)): $$(LIBUV_DEPS)
$$(Q)$$(MAKE) -C $$(S)mk/libuv/$$(LIBUV_ARCH_$(1))/$$(LIBUV_OSTYPE_$(1)) \
CFLAGS="$$(LIBUV_FLAGS_$$(HOST_$(1))) $$(SNAP_DEFINES)" \
LDFLAGS="$$(LIBUV_FLAGS_$$(HOST_$(1)))" \
CC="$$(CFG_GCCISH_CROSS)$$(CC)" \
CXX="$$(CFG_GCCISH_CROSS)$$(CXX)" \
AR="$$(CFG_GCCISH_CROSS)$$(AR)" \
BUILDTYPE=Release \
builddir_name="$$(CFG_BUILD_DIR)/rt/$(1)/libuv" \
V=$$(VERBOSE) FLOCK= uv
# These could go in rt.mk or rustllvm.mk, they're needed for both.
# This regexp has a single $, escaped twice
%.bsd.def: %.def.in $$(MKFILE_DEPS)
@$$(call E, def: $$@)
$$(Q)echo "{" > $$@
$$(Q)sed 's/.$$$$/&;/' $$< >> $$@
$$(Q)echo "};" >> $$@
%.linux.def: %.def.in $$(MKFILE_DEPS)
@$$(call E, def: $$@)
$$(Q)echo "{" > $$@
$$(Q)sed 's/.$$$$/&;/' $$< >> $$@
$$(Q)echo "};" >> $$@
%.darwin.def: %.def.in $$(MKFILE_DEPS)
@$$(call E, def: $$@)
$$(Q)sed 's/^./_&/' $$< > $$@
ifdef CFG_WINDOWSY
%.def: %.def.in $$(MKFILE_DEPS)
@$$(call E, def: $$@)
$$(Q)echo LIBRARY $$* > $$@
$$(Q)echo EXPORTS >> $$@
$$(Q)sed 's/^./ &/' $$< >> $$@
endif
endef
# Instantiate template for all stages
$(foreach target,$(CFG_TARGET_TRIPLES), \
$(eval $(call DEF_RUNTIME_TARGETS,$(target))))
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