mk/rt.mk

   1 # Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 # file at the top-level directory of this distribution and at
   3 # http://rust-lang.org/COPYRIGHT.
   4 #
   5 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 # option. This file may not be copied, modified, or distributed
   9 # except according to those terms.
  10
  11 ################################################################################
  12 # Native libraries built as part of the rust build process
  13 #
  14 # This portion of the rust build system is meant to keep track of native
  15 # dependencies and how to build them. It is currently required that all native
  16 # dependencies are built as static libraries, as slinging around dynamic
  17 # libraries isn't exactly the most fun thing to do.
  18 #
  19 # This section should need minimal modification to add new libraries. The
  20 # relevant variables are:
  21 #
  22 #   NATIVE_LIBS
  23 #       This is a list of all native libraries which are built as part of the
  24 #       build process. It will build all libraries into RT_OUTPUT_DIR with the
  25 #       appropriate name of static library as dictated by the target platform
  26 #
  27 #   NATIVE_DEPS_<lib>
  28 #       This is a list of files relative to the src/rt directory which are
  29 #       needed to build the native library. Each file will be compiled to an
  30 #       object file, and then all the object files will be assembled into an
  31 #       archive (static library). The list contains files of any extension
  32 #
  33 # If adding a new library, you should update the NATIVE_LIBS list, and then list
  34 # the required files below it. The list of required files is a list of files
  35 # that's per-target so you're allowed to conditionally add files based on the
  36 # target.
  37 ################################################################################
  38 NATIVE_LIBS := rust_builtin hoedown morestack miniz \
  39                 rustrt_native rust_test_helpers
  40
  41 # $(1) is the target triple
  42 define NATIVE_LIBRARIES
  43
  44 NATIVE_DEPS_hoedown_$(1) := hoedown/src/autolink.c \
  45                         hoedown/src/buffer.c \
  46                         hoedown/src/document.c \
  47                         hoedown/src/escape.c \
  48                         hoedown/src/html.c \
  49                         hoedown/src/html_blocks.c \
  50                         hoedown/src/html_smartypants.c \
  51                         hoedown/src/stack.c \
  52                         hoedown/src/version.c
  53 NATIVE_DEPS_miniz_$(1) = miniz.c
  54 NATIVE_DEPS_rust_builtin_$(1) := rust_builtin.c \
  55                         rust_android_dummy.c
  56 NATIVE_DEPS_rustrt_native_$(1) := \
  57                         rust_try.ll \
  58                         arch/$$(HOST_$(1))/record_sp.S
  59 NATIVE_DEPS_rust_test_helpers_$(1) := rust_test_helpers.c
  60 NATIVE_DEPS_morestack_$(1) := arch/$$(HOST_$(1))/morestack.S
  61
  62
  63 ################################################################################
  64 # You shouldn't find it that necessary to edit anything below this line.
  65 ################################################################################
  66
  67 # While we're defining the native libraries for each target, we define some
  68 # common rules used to build files for various targets.
  69
  70 RT_OUTPUT_DIR_$(1) := $(1)/rt
  71
  72 $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.ll $$(MKFILE_DEPS) \
  73             $$(LLVM_CONFIG_$$(CFG_BUILD))
  74         @mkdir -p $$(@D)
  75         @$$(call E, compile: $$@)
  76         $$(Q)$$(LLC_$$(CFG_BUILD)) $$(CFG_LLC_FLAGS_$(1)) \
  77             -filetype=obj -mtriple=$$(CFG_LLVM_TARGET_$(1)) \
  78             -relocation-model=pic -o $$@ $$<
  79
  80 $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
  81         @mkdir -p $$(@D)
  82         @$$(call E, compile: $$@)
  83         $$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
  84                 -I $$(S)src/rt/hoedown/src \
  85                 -I $$(S)src/rt \
  86                  $$(RUNTIME_CFLAGS_$(1))) $$<
  87
  88 $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(MKFILE_DEPS) \
  89             $$(LLVM_CONFIG_$$(CFG_BUILD))
  90         @mkdir -p $$(@D)
  91         @$$(call E, compile: $$@)
  92         $$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
  93 endef
  94
  95 $(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
  96
  97 # A macro for devining how to build third party libraries listed above (based
  98 # on their dependencies).
  99 #
 100 # $(1) is the target
 101 # $(2) is the lib name
 102 define THIRD_PARTY_LIB
 103
 104 OBJS_$(2)_$(1) := $$(NATIVE_DEPS_$(2)_$(1):%=$$(RT_OUTPUT_DIR_$(1))/%)
 105 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.c=.o)
 106 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.cpp=.o)
 107 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.ll=.o)
 108 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.S=.o)
 109 NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
 110 $$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
 111         @$$(call E, link: $$@)
 112         $$(Q)$$(AR_$(1)) rcs $$@ $$^
 113
 114 ifeq ($$(findstring windows,$(1)),windows)
 115 $$(RT_OUTPUT_DIR_$(1))/lib$(2).a: $$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1))
 116         $$(Q)cp $$^ $$@
 117 endif
 118
 119 endef
 120
 121 $(foreach target,$(CFG_TARGET), \
 122  $(eval $(call RUNTIME_RULES,$(target))))
 123 $(foreach lib,$(NATIVE_LIBS), \
 124  $(foreach target,$(CFG_TARGET), \
 125   $(eval $(call THIRD_PARTY_LIB,$(target),$(lib)))))
 126
 127
 128 ################################################################################
 129 # Building third-party targets with external build systems
 130 #
 131 # This location is meant for dependencies which have external build systems. It
 132 # is still assumed that the output of each of these steps is a static library
 133 # in the correct location.
 134 ################################################################################
 135
 136 define DEF_THIRD_PARTY_TARGETS
 137
 138 # $(1) is the target triple
 139
 140 ifeq ($$(CFG_WINDOWSY_$(1)), 1)
 141   # This isn't necessarily a desired option, but it's harmless and works around
 142   # what appears to be a mingw-w64 bug.
 143   #
 144   # https://sourceforge.net/p/mingw-w64/bugs/395/
 145   JEMALLOC_ARGS_$(1) := --enable-lazy-lock
 146 else ifeq ($(OSTYPE_$(1)), apple-ios)
 147   JEMALLOC_ARGS_$(1) := --disable-tls
 148 else ifeq ($(findstring android, $(OSTYPE_$(1))), android)
 149   JEMALLOC_ARGS_$(1) := --disable-tls
 150 endif
 151
 152 ifdef CFG_ENABLE_DEBUG_JEMALLOC
 153   JEMALLOC_ARGS_$(1) += --enable-debug --enable-fill
 154 endif
 155
 156 ################################################################################
 157 # jemalloc
 158 ################################################################################
 159
 160 ifdef CFG_ENABLE_FAST_MAKE
 161 JEMALLOC_DEPS := $(S)/.gitmodules
 162 else
 163 JEMALLOC_DEPS := $(wildcard \
 164                    $(S)src/jemalloc/* \
 165                    $(S)src/jemalloc/*/* \
 166                    $(S)src/jemalloc/*/*/* \
 167                    $(S)src/jemalloc/*/*/*/*)
 168 endif
 169
 170 # See #17183 for details, this file is touched during the build process so we
 171 # don't want to consider it as a dependency.
 172 JEMALLOC_DEPS := $(filter-out $(S)src/jemalloc/VERSION,$(JEMALLOC_DEPS))
 173
 174 JEMALLOC_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc)
 175 ifeq ($$(CFG_WINDOWSY_$(1)),1)
 176   JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_s)
 177 else
 178   JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_pic)
 179 endif
 180 JEMALLOC_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(JEMALLOC_NAME_$(1))
 181 JEMALLOC_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/jemalloc
 182 JEMALLOC_LOCAL_$(1) := $$(JEMALLOC_BUILD_DIR_$(1))/lib/$$(JEMALLOC_REAL_NAME_$(1))
 183
 184 $$(JEMALLOC_LOCAL_$(1)): $$(JEMALLOC_DEPS) $$(MKFILE_DEPS)
 185         @$$(call E, make: jemalloc)
 186         cd "$$(JEMALLOC_BUILD_DIR_$(1))"; "$(S)src/jemalloc/configure" \
 187                 $$(JEMALLOC_ARGS_$(1)) --with-jemalloc-prefix=je_ $(CFG_JEMALLOC_FLAGS) \
 188                 --build=$$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$$(CFG_GNU_TRIPLE_$(1)) \
 189                 CC="$$(CC_$(1)) $$(CFG_JEMALLOC_CFLAGS_$(1))" \
 190                 AR="$$(AR_$(1))" \
 191                 RANLIB="$$(AR_$(1)) s" \
 192                 CPPFLAGS="-I $(S)src/rt/" \
 193                 EXTRA_CFLAGS="-g1 -ffunction-sections -fdata-sections"
 194         $$(Q)$$(MAKE) -C "$$(JEMALLOC_BUILD_DIR_$(1))" build_lib_static
 195
 196 ifeq ($$(CFG_DISABLE_JEMALLOC),)
 197 RUSTFLAGS_alloc := --cfg jemalloc
 198 ifeq ($(1),$$(CFG_BUILD))
 199 ifneq ($$(CFG_JEMALLOC_ROOT),)
 200 $$(JEMALLOC_LIB_$(1)): $$(CFG_JEMALLOC_ROOT)/libjemalloc_pic.a
 201         @$$(call E, copy: jemalloc)
 202         $$(Q)cp $$< $$@
 203 else
 204 $$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
 205         $$(Q)cp $$< $$@
 206 endif
 207 else
 208 $$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
 209         $$(Q)cp $$< $$@
 210 endif
 211 else
 212 $$(JEMALLOC_LIB_$(1)): $$(MKFILE_DEPS)
 213         $$(Q)touch $$@
 214 endif
 215
 216 ################################################################################
 217 # compiler-rt
 218 ################################################################################
 219
 220 ifdef CFG_ENABLE_FAST_MAKE
 221 COMPRT_DEPS := $(S)/.gitmodules
 222 else
 223 COMPRT_DEPS := $(wildcard \
 224               $(S)src/compiler-rt/* \
 225               $(S)src/compiler-rt/*/* \
 226               $(S)src/compiler-rt/*/*/* \
 227               $(S)src/compiler-rt/*/*/*/*)
 228 endif
 229
 230 COMPRT_NAME_$(1) := libcompiler-rt.a
 231 COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
 232 COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
 233
 234 $$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
 235         @$$(call E, make: compiler-rt)
 236         $$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
 237                 ProjSrcRoot="$(S)src/compiler-rt" \
 238                 ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
 239                 CC="$$(CC_$(1))" \
 240                 AR="$$(AR_$(1))" \
 241                 RANLIB="$$(AR_$(1)) s" \
 242                 CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1))" \
 243                 TargetTriple=$(1) \
 244                 triple-builtins
 245         $$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/builtins/libcompiler_rt.a $$(COMPRT_LIB_$(1))
 246
 247 ################################################################################
 248 # libbacktrace
 249 #
 250 # We use libbacktrace on linux to get symbols in backtraces, but only on linux.
 251 # Elsewhere we use other system utilities, so this library is only built on
 252 # linux.
 253 ################################################################################
 254
 255 BACKTRACE_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),backtrace)
 256 BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
 257 BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace
 258
 259 # We don't use this on platforms that aren't linux-based, so just make the file
 260 # available, the compilation of libstd won't actually build it.
 261 ifeq ($$(findstring darwin,$$(OSTYPE_$(1))),darwin)
 262 # See comment above
 263 $$(BACKTRACE_LIB_$(1)):
 264         touch $$@
 265
 266 else
 267 ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
 268 # See comment above
 269 $$(BACKTRACE_LIB_$(1)):
 270         touch $$@
 271 else
 272
 273 ifeq ($$(CFG_WINDOWSY_$(1)),1)
 274 # See comment above
 275 $$(BACKTRACE_LIB_$(1)):
 276         touch $$@
 277 else
 278
 279 ifdef CFG_ENABLE_FAST_MAKE
 280 BACKTRACE_DEPS := $(S)/.gitmodules
 281 else
 282 BACKTRACE_DEPS := $(wildcard $(S)src/libbacktrace/*)
 283 endif
 284
 285 # We need to export CFLAGS because otherwise it doesn't pick up cross compile
 286 # builds. If libbacktrace doesn't realize this, it will attempt to read 64-bit
 287 # elf headers when compiled for a 32-bit system, yielding blank backtraces.
 288 #
 289 # This also removes the -Werror flag specifically to prevent errors during
 290 # configuration.
 291 #
 292 # Down below you'll also see echos into the config.h generated by the
 293 # ./configure script. This is done to force libbacktrace to *not* use the
 294 # atomic/sync functionality because it pulls in unnecessary dependencies and we
 295 # never use it anyway.
 296 $$(BACKTRACE_BUILD_DIR_$(1))/Makefile: $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
 297         @$$(call E, configure: libbacktrace for $(1))
 298         $$(Q)rm -rf $$(BACKTRACE_BUILD_DIR_$(1))
 299         $$(Q)mkdir -p $$(BACKTRACE_BUILD_DIR_$(1))
 300         $$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && \
 301               CC="$$(CC_$(1))" \
 302               AR="$$(AR_$(1))" \
 303               RANLIB="$$(AR_$(1)) s" \
 304               CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1):-Werror=) -fno-stack-protector" \
 305               $(S)src/libbacktrace/configure --target=$(1) --host=$(CFG_BUILD))
 306         $$(Q)echo '#undef HAVE_ATOMIC_FUNCTIONS' >> \
 307               $$(BACKTRACE_BUILD_DIR_$(1))/config.h
 308         $$(Q)echo '#undef HAVE_SYNC_FUNCTIONS' >> \
 309               $$(BACKTRACE_BUILD_DIR_$(1))/config.h
 310
 311 $$(BACKTRACE_LIB_$(1)): $$(BACKTRACE_BUILD_DIR_$(1))/Makefile $$(MKFILE_DEPS)
 312         @$$(call E, make: libbacktrace)
 313         $$(Q)$$(MAKE) -C $$(BACKTRACE_BUILD_DIR_$(1)) \
 314                 INCDIR=$(S)src/libbacktrace
 315         $$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
 316
 317 endif # endif for windowsy
 318 endif # endif for ios
 319 endif # endif for darwin
 320
 321 ################################################################################
 322 # libc/libunwind for musl
 323 #
 324 # When we're building a musl-like target we're going to link libc/libunwind
 325 # statically into the standard library and liblibc, so we need to make sure
 326 # they're in a location that we can find
 327 ################################################################################
 328
 329 ifeq ($$(findstring musl,$(1)),musl)
 330 $$(RT_OUTPUT_DIR_$(1))/%: $$(CFG_MUSL_ROOT)/lib/%
 331         cp $$^ $$@
 332 endif
 333
 334 endef
 335
 336 # Instantiate template for all stages/targets
 337 $(foreach target,$(CFG_TARGET), \
 338      $(eval $(call DEF_THIRD_PARTY_TARGETS,$(target))))