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rust/mk/rt.mk
angelsl 9fe4e962e1 Build compiler-rt/builtins with MSVC
2015-11-04 11:43:41 +08:00

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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 := rust_builtin hoedown miniz rust_test_helpers
# $(1) is the target triple
define NATIVE_LIBRARIES
NATIVE_DEPS_hoedown_$(1) := hoedown/src/autolink.c \
hoedown/src/buffer.c \
hoedown/src/document.c \
hoedown/src/escape.c \
hoedown/src/html.c \
hoedown/src/html_blocks.c \
hoedown/src/html_smartypants.c \
hoedown/src/stack.c \
hoedown/src/version.c
NATIVE_DEPS_miniz_$(1) = miniz.c
NATIVE_DEPS_rust_builtin_$(1) := rust_builtin.c \
rust_android_dummy.c
NATIVE_DEPS_rust_test_helpers_$(1) := rust_test_helpers.c
################################################################################
# You shouldn't find it that necessary to edit anything below this line.
################################################################################
# While we're defining the native libraries for each target, we define some
# common rules used to build files for various targets.
RT_OUTPUT_DIR_$(1) := $(1)/rt
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
$$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt/hoedown/src) \
$$(call CFG_CC_INCLUDE_$(1),$$(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)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
# On MSVC targets the compiler's default include path (e.g. where to find system
# headers) is specified by the INCLUDE environment variable. This may not be set
# so the ./configure script scraped the relevant values and this is the location
# that we put them into cl.exe's environment.
ifeq ($$(findstring msvc,$(1)),msvc)
$$(RT_OUTPUT_DIR_$(1))/%.o: \
export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
$(1)/rustllvm/%.o: \
export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
endif
endef
$(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
# A macro for devining how to build third party libraries listed above (based
# on their dependencies).
#
# $(1) is the target
# $(2) is the lib name
define THIRD_PARTY_LIB
OBJS_$(2)_$(1) := $$(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):.S=.o)
NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
$$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
@$$(call E, link: $$@)
$$(Q)$$(call CFG_CREATE_ARCHIVE_$(1),$$@) $$^
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
#
# 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_THIRD_PARTY_TARGETS
# $(1) is the target triple
ifeq ($$(CFG_WINDOWSY_$(1)), 1)
# This isn't necessarily a desired option, but it's harmless and works around
# what appears to be a mingw-w64 bug.
#
# https://sourceforge.net/p/mingw-w64/bugs/395/
JEMALLOC_ARGS_$(1) := --enable-lazy-lock
else ifeq ($(OSTYPE_$(1)), apple-ios)
JEMALLOC_ARGS_$(1) := --disable-tls
else ifeq ($(findstring android, $(OSTYPE_$(1))), android)
JEMALLOC_ARGS_$(1) := --disable-tls
endif
ifdef CFG_ENABLE_DEBUG_JEMALLOC
JEMALLOC_ARGS_$(1) += --enable-debug --enable-fill
endif
################################################################################
# jemalloc
################################################################################
ifdef CFG_ENABLE_FAST_MAKE
JEMALLOC_DEPS := $(S)/.gitmodules
else
JEMALLOC_DEPS := $(wildcard \
$(S)src/jemalloc/* \
$(S)src/jemalloc/*/* \
$(S)src/jemalloc/*/*/* \
$(S)src/jemalloc/*/*/*/*)
endif
# See #17183 for details, this file is touched during the build process so we
# don't want to consider it as a dependency.
JEMALLOC_DEPS := $(filter-out $(S)src/jemalloc/VERSION,$(JEMALLOC_DEPS))
JEMALLOC_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc)
ifeq ($$(CFG_WINDOWSY_$(1)),1)
JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_s)
else
JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_pic)
endif
JEMALLOC_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(JEMALLOC_NAME_$(1))
JEMALLOC_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/jemalloc
JEMALLOC_LOCAL_$(1) := $$(JEMALLOC_BUILD_DIR_$(1))/lib/$$(JEMALLOC_REAL_NAME_$(1))
$$(JEMALLOC_LOCAL_$(1)): $$(JEMALLOC_DEPS) $$(MKFILE_DEPS)
@$$(call E, make: jemalloc)
cd "$$(JEMALLOC_BUILD_DIR_$(1))"; "$(S)src/jemalloc/configure" \
$$(JEMALLOC_ARGS_$(1)) --with-jemalloc-prefix=je_ $(CFG_JEMALLOC_FLAGS) \
--build=$$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$$(CFG_GNU_TRIPLE_$(1)) \
CC="$$(CC_$(1)) $$(CFG_JEMALLOC_CFLAGS_$(1))" \
AR="$$(AR_$(1))" \
RANLIB="$$(AR_$(1)) s" \
CPPFLAGS="-I $(S)src/rt/" \
EXTRA_CFLAGS="-g1 -ffunction-sections -fdata-sections"
$$(Q)$$(MAKE) -C "$$(JEMALLOC_BUILD_DIR_$(1))" build_lib_static
ifeq ($(1),$$(CFG_BUILD))
ifneq ($$(CFG_JEMALLOC_ROOT),)
$$(JEMALLOC_LIB_$(1)): $$(CFG_JEMALLOC_ROOT)/libjemalloc_pic.a
@$$(call E, copy: jemalloc)
$$(Q)cp $$< $$@
else
$$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
$$(Q)cp $$< $$@
endif
else
$$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
$$(Q)cp $$< $$@
endif
################################################################################
# compiler-rt
################################################################################
ifdef CFG_ENABLE_FAST_MAKE
COMPRT_DEPS := $(S)/.gitmodules
else
COMPRT_DEPS := $(wildcard \
$(S)src/compiler-rt/* \
$(S)src/compiler-rt/*/* \
$(S)src/compiler-rt/*/*/* \
$(S)src/compiler-rt/*/*/*/*)
endif
COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
ifeq ($$(findstring msvc,$(1)),msvc)
$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS) $$(LLVM_CONFIG_$(1))
@$$(call E, cmake: compiler-rt)
$$(Q)cd "$$(COMPRT_BUILD_DIR_$(1))"; $$(CFG_CMAKE) "$(S)src/compiler-rt" \
-DCMAKE_BUILD_TYPE=$$(LLVM_BUILD_CONFIG_MODE) \
-DLLVM_CONFIG_PATH=$$(LLVM_CONFIG_$(1)) \
-G"$$(CFG_CMAKE_GENERATOR)"
$$(Q)$$(CFG_CMAKE) --build "$$(COMPRT_BUILD_DIR_$(1))" \
--target lib/builtins/builtins \
--config $$(LLVM_BUILD_CONFIG_MODE) \
-- //v:m //nologo
$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/lib/windows/$$(LLVM_BUILD_CONFIG_MODE)/clang_rt.builtins-$$(HOST_$(1)).lib $$@
else
COMPRT_CC_$(1) := $$(CC_$(1))
COMPRT_AR_$(1) := $$(AR_$(1))
# We chomp -Werror here because GCC warns about the type signature of
# builtins not matching its own and the build fails. It's a bit hacky,
# but what can we do, we're building libclang-rt using GCC ......
COMPRT_CFLAGS_$(1) := $$(subst -Werror,,$$(CFG_GCCISH_CFLAGS_$(1))) -std=c99
# FreeBSD Clang's packaging is problematic; it doesn't copy unwind.h to
# the standard include directory. This should really be in our changes to
# compiler-rt, but we override the CFLAGS here so there isn't much choice
ifeq ($$(findstring freebsd,$(1)),freebsd)
COMPRT_CFLAGS_$(1) += -I/usr/include/c++/v1
endif
$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
@$$(call E, make: compiler-rt)
$$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
ProjSrcRoot="$(S)src/compiler-rt" \
ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
CC='$$(COMPRT_CC_$(1))' \
AR='$$(COMPRT_AR_$(1))' \
RANLIB='$$(COMPRT_AR_$(1)) s' \
CFLAGS="$$(COMPRT_CFLAGS_$(1))" \
TargetTriple=$(1) \
triple-builtins
$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/builtins/libcompiler_rt.a $$@
endif
################################################################################
# libbacktrace
#
# We use libbacktrace on linux to get symbols in backtraces, but only on linux.
# Elsewhere we use other system utilities, so this library is only built on
# linux.
################################################################################
BACKTRACE_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),backtrace)
BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace
# We don't use this on platforms that aren't linux-based (with the exception of
# msys2/mingw builds on windows, which use it to read the dwarf debug
# information) so just make the file available, the compilation of libstd won't
# actually build it.
ifeq ($$(findstring darwin,$$(OSTYPE_$(1))),darwin)
# See comment above
$$(BACKTRACE_LIB_$(1)):
touch $$@
else
ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
# See comment above
$$(BACKTRACE_LIB_$(1)):
touch $$@
else
ifeq ($$(findstring msvc,$(1)),msvc)
# See comment above
$$(BACKTRACE_LIB_$(1)):
touch $$@
else
ifdef CFG_ENABLE_FAST_MAKE
BACKTRACE_DEPS := $(S)/.gitmodules
else
BACKTRACE_DEPS := $(wildcard $(S)src/libbacktrace/*)
endif
# We need to export CFLAGS because otherwise it doesn't pick up cross compile
# builds. If libbacktrace doesn't realize this, it will attempt to read 64-bit
# elf headers when compiled for a 32-bit system, yielding blank backtraces.
#
# This also removes the -Werror flag specifically to prevent errors during
# configuration.
#
# Down below you'll also see echos into the config.h generated by the
# ./configure script. This is done to force libbacktrace to *not* use the
# atomic/sync functionality because it pulls in unnecessary dependencies and we
# never use it anyway.
#
# We also use `env PWD=` to clear the PWD environment variable, and then
# execute the command in a new shell. This is necessary to workaround a
# buildbot/msys2 bug: the shell is launched with PWD set to a windows-style path,
# which results in all further uses of `pwd` also printing a windows-style path,
# which breaks libbacktrace's configure script. Clearing PWD within the same
# shell is not sufficient.
$$(BACKTRACE_BUILD_DIR_$(1))/Makefile: $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
@$$(call E, configure: libbacktrace for $(1))
$$(Q)rm -rf $$(BACKTRACE_BUILD_DIR_$(1))
$$(Q)mkdir -p $$(BACKTRACE_BUILD_DIR_$(1))
$$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && env \
PWD= \
CC="$$(CC_$(1))" \
AR="$$(AR_$(1))" \
RANLIB="$$(AR_$(1)) s" \
CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1):-Werror=) -fno-stack-protector" \
$(S)src/libbacktrace/configure --build=$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$(CFG_GNU_TRIPLE_$(1)))
$$(Q)echo '#undef HAVE_ATOMIC_FUNCTIONS' >> \
$$(BACKTRACE_BUILD_DIR_$(1))/config.h
$$(Q)echo '#undef HAVE_SYNC_FUNCTIONS' >> \
$$(BACKTRACE_BUILD_DIR_$(1))/config.h
$$(BACKTRACE_LIB_$(1)): $$(BACKTRACE_BUILD_DIR_$(1))/Makefile $$(MKFILE_DEPS)
@$$(call E, make: libbacktrace)
$$(Q)$$(MAKE) -C $$(BACKTRACE_BUILD_DIR_$(1)) \
INCDIR=$(S)src/libbacktrace
$$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
endif # endif for msvc
endif # endif for ios
endif # endif for darwin
################################################################################
# libc/libunwind for musl
#
# When we're building a musl-like target we're going to link libc/libunwind
# statically into the standard library and liblibc, so we need to make sure
# they're in a location that we can find
################################################################################
ifeq ($$(findstring musl,$(1)),musl)
$$(RT_OUTPUT_DIR_$(1))/%: $$(CFG_MUSL_ROOT)/lib/%
cp $$^ $$@
endif
endef
# Instantiate template for all stages/targets
$(foreach target,$(CFG_TARGET), \
$(eval $(call DEF_THIRD_PARTY_TARGETS,$(target))))
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