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rust/mk/rt.mk
Alex Crichton 301ff0c2df Remove two allocations from spawning a green task 
Two unfortunate allocations were wrapping a proc() in a proc() with
GreenTask::build_start_wrapper, and then boxing this proc in a ~proc() inside of
Context::new(). Both of these allocations were a direct result from two
conditions:

1. The Context::new() function has a nice api of taking a procedure argument to
   start up a new context with. This inherently required an allocation by
   build_start_wrapper because extra code needed to be run around the edges of a
   user-provided proc() for a new task.

2. The initial bootstrap code only understood how to pass one argument to the
   next function. By modifying the assembly and entry points to understand more
   than one argument, more information is passed through in registers instead of
   allocating a pointer-sized context.

This is sadly where I end up throwing mips under a bus because I have no idea
what's going on in the mips context switching code and don't know how to modify
it.

Closes #7767
cc #11389
2014-02-13 20:31:17 -08:00

257 lines
9.0 KiB
Makefile
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# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
################################################################################
# Native libraries built as part of the rust build process
#
# This portion of the rust build system is meant to keep track of native
# dependencies and how to build them. It is currently required that all native
# dependencies are built as static libraries, as slinging around dynamic
# libraries isn't exactly the most fun thing to do.
#
# This section should need minimal modification to add new libraries. The
# relevant variables are:
#
# NATIVE_LIBS
# This is a list of all native libraries which are built as part of the
# build process. It will build all libraries into RT_OUTPUT_DIR with the
# appropriate name of static library as dictated by the target platform
#
# NATIVE_DEPS_<lib>
# This is a list of files relative to the src/rt directory which are
# needed to build the native library. Each file will be compiled to an
# object file, and then all the object files will be assembled into an
# archive (static library). The list contains files of any extension
#
# If adding a new library, you should update the NATIVE_LIBS list, and then list
# the required files below it. The list of required files is a list of files
# that's per-target so you're allowed to conditionally add files based on the
# target.
################################################################################
NATIVE_LIBS := rustrt sundown uv_support morestack miniz context_switch
# $(1) is the target triple
define NATIVE_LIBRARIES
NATIVE_DEPS_sundown_$(1) := sundown/src/autolink.c \
sundown/src/buffer.c \
sundown/src/stack.c \
sundown/src/markdown.c \
sundown/html/houdini_href_e.c \
sundown/html/houdini_html_e.c \
sundown/html/html_smartypants.c \
sundown/html/html.c
NATIVE_DEPS_uv_support_$(1) := rust_uv.c
NATIVE_DEPS_miniz_$(1) = miniz.c
NATIVE_DEPS_rustrt_$(1) := rust_builtin.c \
rust_android_dummy.c \
rust_test_helpers.c \
rust_try.ll \
arch/$$(HOST_$(1))/record_sp.S
NATIVE_DEPS_morestack_$(1) := arch/$$(HOST_$(1))/morestack.S
NATIVE_DEPS_context_switch_$(1) := \
arch/$$(HOST_$(1))/_context.S
################################################################################
# You shouldn't find it that necessary to edit anything below this line.
################################################################################
# While we're defining the native libraries for each target, we define some
# common rules used to build files for various targets.
RT_OUTPUT_DIR_$(1) := $(1)/rt
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.ll $$(MKFILE_DEPS) \
$$(LLVM_CONFIG_$$(CFG_BUILD))
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(LLC_$$(CFG_BUILD)) $$(CFG_LLC_FLAGS_$(1)) \
-filetype=obj -mtriple=$(1) -relocation-model=pic -o $$@ $$<
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
-I $$(S)src/rt/sundown/src -I $$(S)src/rt/sundown/html \
-I $$(S)src/libuv/include -I $$(S)src/rt \
$$(RUNTIME_CFLAGS_$(1))) $$<
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(MKFILE_DEPS) \
$$(LLVM_CONFIG_$$(CFG_BUILD))
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
endef
$(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
# A macro for devining how to build third party libraries listed above (based
# on their dependencies).
#
# $(1) is the target
# $(2) is the lib name
define THIRD_PARTY_LIB
OBJS_$(2)_$(1) := $$(NATIVE_DEPS_$(2)_$(1):%=$$(RT_OUTPUT_DIR_$(1))/%)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.c=.o)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.cpp=.o)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.ll=.o)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.S=.o)
NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
$$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
@$$(call E, link: $$@)
$$(Q)$$(AR_$(1)) rcs $$@ $$^
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call RUNTIME_RULES,$(target))))
$(foreach lib,$(NATIVE_LIBS), \
$(foreach target,$(CFG_TARGET), \
$(eval $(call THIRD_PARTY_LIB,$(target),$(lib)))))
################################################################################
# Building third-party targets with external build systems
#
# The only current member of this section is libuv, but long ago this used to
# also be occupied by jemalloc. This location is meant for dependencies which
# have external build systems. It is still assumed that the output of each of
# these steps is a static library in the correct location.
################################################################################
define DEF_LIBUV_ARCH_VAR
LIBUV_ARCH_$(1) = $$(subst i386,ia32,$$(subst x86_64,x64,$$(HOST_$(1))))
endef
$(foreach t,$(CFG_TARGET),$(eval $(call DEF_LIBUV_ARCH_VAR,$(t))))
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_NO_LOAD = run-benchmarks.target.mk run-tests.target.mk \
uv_dtrace_header.target.mk uv_dtrace_provider.target.mk
export PYTHONPATH := $(PYTHONPATH):$(S)src/gyp/pylib
define DEF_THIRD_PARTY_TARGETS
# $(1) is the target triple
ifeq ($$(CFG_WINDOWSY_$(1)), 1)
LIBUV_OSTYPE_$(1) := win
else ifeq ($(OSTYPE_$(1)), apple-darwin)
LIBUV_OSTYPE_$(1) := mac
else ifeq ($(OSTYPE_$(1)), unknown-freebsd)
LIBUV_OSTYPE_$(1) := freebsd
else ifeq ($(OSTYPE_$(1)), linux-androideabi)
LIBUV_OSTYPE_$(1) := android
LIBUV_ARGS_$(1) := PLATFORM=android host=android OS=linux
else
LIBUV_OSTYPE_$(1) := linux
endif
LIBUV_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),uv)
LIBUV_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libuv
LIBUV_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(LIBUV_NAME_$(1))
LIBUV_MAKEFILE_$(1) := $$(CFG_BUILD_DIR)$$(RT_OUTPUT_DIR_$(1))/libuv/Makefile
LIBUV_STAMP_$(1) = $$(LIBUV_DIR_$(1))/libuv-auto-clean-stamp
$$(LIBUV_STAMP_$(1)): $(S)src/rt/libuv-auto-clean-trigger
$$(Q)rm -rf $$(LIBUV_DIR_$(1))
$$(Q)mkdir -p $$(@D)
touch $$@
# libuv triggers a few warnings on some platforms
LIBUV_CFLAGS_$(1) := $(subst -Werror,,$(CFG_GCCISH_CFLAGS_$(1)))
$$(LIBUV_MAKEFILE_$(1)): $$(LIBUV_DEPS) $$(MKFILE_DEPS) $$(LIBUV_STAMP_$(1))
(cd $(S)src/libuv/ && \
$$(CFG_PYTHON) ./gyp_uv.py -f make -Dtarget_arch=$$(LIBUV_ARCH_$(1)) \
-D ninja \
-DOS=$$(LIBUV_OSTYPE_$(1)) \
-Goutput_dir=$$(@D) --generator-output $$(@D))
touch $$@
# Windows has a completely different build system for libuv because of mingw. In
# theory when we support msvc then we should be using gyp's msvc output instead
# of mingw's makefile for windows
ifdef CFG_WINDOWSY_$(1)
$$(LIBUV_LIB_$(1)): $$(LIBUV_DEPS) $$(MKFILE_DEPS)
$$(Q)$$(MAKE) -C $$(S)src/libuv -f Makefile.mingw \
LDFLAGS="$$(CFG_GCCISH_LINK_FLAGS_$(1))" \
CC="$$(CC_$(1)) $$(LIBUV_CFLAGS_$(1)) $$(SNAP_DEFINES)" \
CXX="$$(CXX_$(1))" \
AR="$$(AR_$(1))" \
V=$$(VERBOSE)
$$(Q)cp $$(S)src/libuv/libuv.a $$@
else
$$(LIBUV_LIB_$(1)): $$(LIBUV_DIR_$(1))/Release/libuv.a $$(MKFILE_DEPS)
$$(Q)cp $$< $$@
$$(LIBUV_DIR_$(1))/Release/libuv.a: $$(LIBUV_DEPS) $$(LIBUV_MAKEFILE_$(1)) \
$$(MKFILE_DEPS)
$$(Q)$$(MAKE) -C $$(LIBUV_DIR_$(1)) \
CFLAGS="$$(LIBUV_CFLAGS_$(1)) $$(SNAP_DEFINES)" \
LDFLAGS="$$(CFG_GCCISH_LINK_FLAGS_$(1))" \
CC="$$(CC_$(1))" \
CXX="$$(CXX_$(1))" \
AR="$$(AR_$(1))" \
$$(LIBUV_ARGS_$(1)) \
BUILDTYPE=Release \
NO_LOAD="$$(LIBUV_NO_LOAD)" \
V=$$(VERBOSE)
endif
################################################################################
# compiler-rt
################################################################################
ifdef CFG_ENABLE_FAST_MAKE
COMPRT_DEPS := $(S)/.gitmodules
else
COMPRT_DEPS := $(wildcard \
$(S)src/compiler-rt/* \
$(S)src/compiler-rt/*/* \
$(S)src/compiler-rt/*/*/* \
$(S)src/compiler-rt/*/*/*/*)
endif
COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS)
@$$(call E, make: compiler-rt)
$$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
ProjSrcRoot="$(S)src/compiler-rt" \
ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
CC="$$(CC_$(1))" \
AR="$$(AR_$(1))" \
RANLIB="$$(AR_$(1)) s" \
CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1))" \
TargetTriple=$(1) \
triple-runtime
$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/runtime/libcompiler_rt.a $$(COMPRT_LIB_$(1))
endef
# Instantiate template for all stages/targets
$(foreach target,$(CFG_TARGET), \
$(eval $(call DEF_THIRD_PARTY_TARGETS,$(target))))
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