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7fdb9fd941
Adding -Wno-error is more reliable and simple than trying to modify existing flags. We've been using this in Debian already for the past few releases. Making this change also encourages future maintainers towards "best practises". Also take the opportunity to use the same method at all places in the file.
404 lines
15 KiB
Makefile
404 lines
15 KiB
Makefile
# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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################################################################################
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# Native libraries built as part of the rust build process
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#
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# This portion of the rust build system is meant to keep track of native
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# dependencies and how to build them. It is currently required that all native
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# dependencies are built as static libraries, as slinging around dynamic
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# libraries isn't exactly the most fun thing to do.
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#
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# This section should need minimal modification to add new libraries. The
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# relevant variables are:
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#
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# NATIVE_LIBS
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# This is a list of all native libraries which are built as part of the
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# build process. It will build all libraries into RT_OUTPUT_DIR with the
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# appropriate name of static library as dictated by the target platform
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#
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# NATIVE_DEPS_<lib>
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# This is a list of files relative to the src/rt directory which are
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# needed to build the native library. Each file will be compiled to an
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# object file, and then all the object files will be assembled into an
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# archive (static library). The list contains files of any extension
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#
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# If adding a new library, you should update the NATIVE_LIBS list, and then list
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# the required files below it. The list of required files is a list of files
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# that's per-target so you're allowed to conditionally add files based on the
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# target.
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################################################################################
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NATIVE_LIBS := hoedown miniz rust_test_helpers
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# $(1) is the target triple
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define NATIVE_LIBRARIES
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NATIVE_DEPS_hoedown_$(1) := hoedown/src/autolink.c \
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hoedown/src/buffer.c \
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hoedown/src/document.c \
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hoedown/src/escape.c \
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hoedown/src/html.c \
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hoedown/src/html_blocks.c \
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hoedown/src/html_smartypants.c \
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hoedown/src/stack.c \
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hoedown/src/version.c
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NATIVE_DEPS_miniz_$(1) = miniz.c
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NATIVE_DEPS_rust_test_helpers_$(1) := rust_test_helpers.c
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################################################################################
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# You shouldn't find it that necessary to edit anything below this line.
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################################################################################
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# While we're defining the native libraries for each target, we define some
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# common rules used to build files for various targets.
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RT_OUTPUT_DIR_$(1) := $(1)/rt
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$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
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@mkdir -p $$(@D)
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@$$(call E, compile: $$@)
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$$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
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$$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt/hoedown/src) \
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$$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt) \
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$$(RUNTIME_CFLAGS_$(1))) $$<
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$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(MKFILE_DEPS) \
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$$(LLVM_CONFIG_$$(CFG_BUILD))
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@mkdir -p $$(@D)
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@$$(call E, compile: $$@)
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$$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
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# On MSVC targets the compiler's default include path (e.g. where to find system
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# headers) is specified by the INCLUDE environment variable. This may not be set
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# so the ./configure script scraped the relevant values and this is the location
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# that we put them into cl.exe's environment.
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ifeq ($$(findstring msvc,$(1)),msvc)
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$$(RT_OUTPUT_DIR_$(1))/%.o: \
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export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
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$(1)/rustllvm/%.o: \
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export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
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endif
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endef
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$(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
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# A macro for devining how to build third party libraries listed above (based
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# on their dependencies).
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#
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# $(1) is the target
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# $(2) is the lib name
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define THIRD_PARTY_LIB
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OBJS_$(2)_$(1) := $$(NATIVE_DEPS_$(2)_$(1):%=$$(RT_OUTPUT_DIR_$(1))/%)
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OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.c=.o)
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OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.cpp=.o)
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OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.S=.o)
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NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
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$$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
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@$$(call E, link: $$@)
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$$(Q)$$(call CFG_CREATE_ARCHIVE_$(1),$$@) $$^
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endef
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call RUNTIME_RULES,$(target))))
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$(foreach lib,$(NATIVE_LIBS), \
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call THIRD_PARTY_LIB,$(target),$(lib)))))
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################################################################################
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# Building third-party targets with external build systems
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#
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# This location is meant for dependencies which have external build systems. It
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# is still assumed that the output of each of these steps is a static library
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# in the correct location.
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################################################################################
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define DEF_THIRD_PARTY_TARGETS
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# $(1) is the target triple
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ifeq ($$(CFG_WINDOWSY_$(1)),1)
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# A bit of history here, this used to be --enable-lazy-lock added in #14006
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# which was filed with jemalloc in jemalloc/jemalloc#83 which was also
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# reported to MinGW: http://sourceforge.net/p/mingw-w64/bugs/395/
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#
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# When updating jemalloc to 4.0, however, it was found that binaries would
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# exit with the status code STATUS_RESOURCE_NOT_OWNED indicating that a thread
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# was unlocking a mutex it never locked. Disabling this "lazy lock" option
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# seems to fix the issue, but it was enabled by default for MinGW targets in
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# 13473c7 for jemalloc.
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#
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# As a result of all that, force disabling lazy lock on Windows, and after
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# reading some code it at least *appears* that the initialization of mutexes
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# is otherwise ok in jemalloc, so shouldn't cause problems hopefully...
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#
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# tl;dr: make windows behave like other platforms by disabling lazy locking,
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# but requires passing an option due to a historical default with
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# jemalloc.
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JEMALLOC_ARGS_$(1) := --disable-lazy-lock
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else ifeq ($(OSTYPE_$(1)), apple-ios)
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JEMALLOC_ARGS_$(1) := --disable-tls
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else ifeq ($(findstring android, $(OSTYPE_$(1))), android)
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# We force android to have prefixed symbols because apparently replacement of
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# the libc allocator doesn't quite work. When this was tested (unprefixed
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# symbols), it was found that the `realpath` function in libc would allocate
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# with libc malloc (not jemalloc malloc), and then the standard library would
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# free with jemalloc free, causing a segfault.
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#
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# If the test suite passes, however, without symbol prefixes then we should be
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# good to go!
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JEMALLOC_ARGS_$(1) := --disable-tls --with-jemalloc-prefix=je_
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endif
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ifdef CFG_ENABLE_DEBUG_JEMALLOC
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JEMALLOC_ARGS_$(1) += --enable-debug --enable-fill
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endif
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################################################################################
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# jemalloc
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################################################################################
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ifdef CFG_ENABLE_FAST_MAKE
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JEMALLOC_DEPS := $(S)/.gitmodules
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else
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JEMALLOC_DEPS := $(wildcard \
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$(S)src/jemalloc/* \
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$(S)src/jemalloc/*/* \
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$(S)src/jemalloc/*/*/* \
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$(S)src/jemalloc/*/*/*/*)
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endif
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# See #17183 for details, this file is touched during the build process so we
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# don't want to consider it as a dependency.
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JEMALLOC_DEPS := $(filter-out $(S)src/jemalloc/VERSION,$(JEMALLOC_DEPS))
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JEMALLOC_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc)
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ifeq ($$(CFG_WINDOWSY_$(1)),1)
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JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_s)
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else
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JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_pic)
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endif
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JEMALLOC_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(JEMALLOC_NAME_$(1))
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JEMALLOC_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/jemalloc
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JEMALLOC_LOCAL_$(1) := $$(JEMALLOC_BUILD_DIR_$(1))/lib/$$(JEMALLOC_REAL_NAME_$(1))
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$$(JEMALLOC_LOCAL_$(1)): $$(JEMALLOC_DEPS) $$(MKFILE_DEPS)
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@$$(call E, make: jemalloc)
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cd "$$(JEMALLOC_BUILD_DIR_$(1))"; "$(S)src/jemalloc/configure" \
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$$(JEMALLOC_ARGS_$(1)) $(CFG_JEMALLOC_FLAGS) \
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--build=$$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$$(CFG_GNU_TRIPLE_$(1)) \
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CC="$$(CC_$(1)) $$(CFG_JEMALLOC_CFLAGS_$(1))" \
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AR="$$(AR_$(1))" \
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RANLIB="$$(AR_$(1)) s" \
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CPPFLAGS="-I $(S)src/rt/" \
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EXTRA_CFLAGS="-g1 -ffunction-sections -fdata-sections"
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$$(Q)$$(MAKE) -C "$$(JEMALLOC_BUILD_DIR_$(1))" build_lib_static
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ifeq ($(1),$$(CFG_BUILD))
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ifneq ($$(CFG_JEMALLOC_ROOT),)
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$$(JEMALLOC_LIB_$(1)): $$(CFG_JEMALLOC_ROOT)/libjemalloc_pic.a
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@$$(call E, copy: jemalloc)
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$$(Q)cp $$< $$@
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else
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$$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
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$$(Q)cp $$< $$@
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endif
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else
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$$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
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$$(Q)cp $$< $$@
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endif
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################################################################################
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# compiler-rt
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################################################################################
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ifdef CFG_ENABLE_FAST_MAKE
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COMPRT_DEPS := $(S)/.gitmodules
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else
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COMPRT_DEPS := $(wildcard \
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$(S)src/compiler-rt/* \
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$(S)src/compiler-rt/*/* \
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$(S)src/compiler-rt/*/*/* \
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$(S)src/compiler-rt/*/*/*/*)
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endif
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COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
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COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
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COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
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ifeq ($$(findstring msvc,$(1)),msvc)
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$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS) $$(LLVM_CONFIG_$(1))
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@$$(call E, cmake: compiler-rt)
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$$(Q)cd "$$(COMPRT_BUILD_DIR_$(1))"; $$(CFG_CMAKE) "$(S)src/compiler-rt" \
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-DCMAKE_BUILD_TYPE=$$(LLVM_BUILD_CONFIG_MODE) \
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-DLLVM_CONFIG_PATH=$$(LLVM_CONFIG_$(1)) \
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-G"$$(CFG_CMAKE_GENERATOR)"
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$$(Q)$$(CFG_CMAKE) --build "$$(COMPRT_BUILD_DIR_$(1))" \
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--target lib/builtins/builtins \
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--config $$(LLVM_BUILD_CONFIG_MODE) \
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-- //v:m //nologo
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$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/lib/windows/$$(LLVM_BUILD_CONFIG_MODE)/clang_rt.builtins-$$(HOST_$(1)).lib $$@
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else
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COMPRT_CC_$(1) := $$(CC_$(1))
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COMPRT_AR_$(1) := $$(AR_$(1))
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# We chomp -Werror here because GCC warns about the type signature of
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# builtins not matching its own and the build fails. It's a bit hacky,
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# but what can we do, we're building libclang-rt using GCC ......
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COMPRT_CFLAGS_$(1) := $$(CFG_GCCISH_CFLAGS_$(1)) -Wno-error -std=c99
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# FreeBSD Clang's packaging is problematic; it doesn't copy unwind.h to
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# the standard include directory. This should really be in our changes to
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# compiler-rt, but we override the CFLAGS here so there isn't much choice
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ifeq ($$(findstring freebsd,$(1)),freebsd)
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COMPRT_CFLAGS_$(1) += -I/usr/include/c++/v1
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endif
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ifeq ($$(findstring emscripten,$(1)),emscripten)
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# FIXME: emscripten doesn't use compiler-rt and can't build it without
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# further hacks
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$$(COMPRT_LIB_$(1)):
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touch $$@
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else
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$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
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@$$(call E, make: compiler-rt)
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$$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
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ProjSrcRoot="$(S)src/compiler-rt" \
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ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
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CC='$$(COMPRT_CC_$(1))' \
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AR='$$(COMPRT_AR_$(1))' \
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RANLIB='$$(COMPRT_AR_$(1)) s' \
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CFLAGS="$$(COMPRT_CFLAGS_$(1))" \
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TargetTriple=$(1) \
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triple-builtins
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$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/builtins/libcompiler_rt.a $$@
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endif # if emscripten
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endif
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################################################################################
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# libbacktrace
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#
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# We use libbacktrace on linux to get symbols in backtraces, but only on linux.
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# Elsewhere we use other system utilities, so this library is only built on
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# linux.
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################################################################################
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BACKTRACE_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),backtrace)
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BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
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BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace
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# We don't use this on platforms that aren't linux-based (with the exception of
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# msys2/mingw builds on windows, which use it to read the dwarf debug
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# information) so just make the file available, the compilation of libstd won't
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# actually build it.
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ifeq ($$(findstring darwin,$$(OSTYPE_$(1))),darwin)
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# See comment above
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$$(BACKTRACE_LIB_$(1)):
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touch $$@
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else
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ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
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# See comment above
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$$(BACKTRACE_LIB_$(1)):
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touch $$@
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else
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ifeq ($$(findstring msvc,$(1)),msvc)
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# See comment above
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$$(BACKTRACE_LIB_$(1)):
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touch $$@
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else
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ifeq ($$(findstring emscripten,$(1)),emscripten)
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# FIXME: libbacktrace doesn't understand the emscripten triple
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$$(BACKTRACE_LIB_$(1)):
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touch $$@
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else
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ifdef CFG_ENABLE_FAST_MAKE
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BACKTRACE_DEPS := $(S)/.gitmodules
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else
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BACKTRACE_DEPS := $(wildcard $(S)src/libbacktrace/*)
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endif
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# We need to export CFLAGS because otherwise it doesn't pick up cross compile
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# builds. If libbacktrace doesn't realize this, it will attempt to read 64-bit
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# elf headers when compiled for a 32-bit system, yielding blank backtraces.
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#
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# This also removes the -Werror flag specifically to prevent errors during
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# configuration.
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#
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# Down below you'll also see echos into the config.h generated by the
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# ./configure script. This is done to force libbacktrace to *not* use the
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# atomic/sync functionality because it pulls in unnecessary dependencies and we
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# never use it anyway.
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#
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# We also use `env PWD=` to clear the PWD environment variable, and then
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# execute the command in a new shell. This is necessary to workaround a
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# buildbot/msys2 bug: the shell is launched with PWD set to a windows-style path,
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# which results in all further uses of `pwd` also printing a windows-style path,
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# which breaks libbacktrace's configure script. Clearing PWD within the same
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# shell is not sufficient.
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$$(BACKTRACE_BUILD_DIR_$(1))/Makefile: $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
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@$$(call E, configure: libbacktrace for $(1))
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$$(Q)rm -rf $$(BACKTRACE_BUILD_DIR_$(1))
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$$(Q)mkdir -p $$(BACKTRACE_BUILD_DIR_$(1))
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$$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && env \
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PWD= \
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CC="$$(CC_$(1))" \
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AR="$$(AR_$(1))" \
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RANLIB="$$(AR_$(1)) s" \
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CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1)) -Wno-error -fno-stack-protector" \
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$(S)src/libbacktrace/configure --build=$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$(CFG_GNU_TRIPLE_$(1)))
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$$(Q)echo '#undef HAVE_ATOMIC_FUNCTIONS' >> \
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$$(BACKTRACE_BUILD_DIR_$(1))/config.h
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$$(Q)echo '#undef HAVE_SYNC_FUNCTIONS' >> \
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$$(BACKTRACE_BUILD_DIR_$(1))/config.h
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$$(BACKTRACE_LIB_$(1)): $$(BACKTRACE_BUILD_DIR_$(1))/Makefile $$(MKFILE_DEPS)
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@$$(call E, make: libbacktrace)
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$$(Q)$$(MAKE) -C $$(BACKTRACE_BUILD_DIR_$(1)) \
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INCDIR=$(S)src/libbacktrace
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$$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
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endif # endif for emscripten
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endif # endif for msvc
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endif # endif for ios
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endif # endif for darwin
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################################################################################
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# libc/libunwind for musl
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#
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# When we're building a musl-like target we're going to link libc/libunwind
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# statically into the standard library and liblibc, so we need to make sure
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# they're in a location that we can find
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################################################################################
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ifeq ($$(findstring musl,$(1)),musl)
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$$(RT_OUTPUT_DIR_$(1))/%: $$(CFG_MUSL_ROOT)/lib/%
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cp $$^ $$@
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else
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# Ask gcc where it is
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$$(RT_OUTPUT_DIR_$(1))/%:
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cp $$(shell $$(CC_$(1)) -print-file-name=$$(@F)) $$@
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endif
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endef
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# Instantiate template for all stages/targets
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call DEF_THIRD_PARTY_TARGETS,$(target))))
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