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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 := hoedown miniz rust_test_helpers
39
40 # $(1) is the target triple
41 define NATIVE_LIBRARIES
42
43 NATIVE_DEPS_hoedown_$(1) := hoedown/src/autolink.c \
44 hoedown/src/buffer.c \
45 hoedown/src/document.c \
46 hoedown/src/escape.c \
47 hoedown/src/html.c \
48 hoedown/src/html_blocks.c \
49 hoedown/src/html_smartypants.c \
50 hoedown/src/stack.c \
51 hoedown/src/version.c
52 NATIVE_DEPS_miniz_$(1) = miniz.c
53 NATIVE_DEPS_rust_test_helpers_$(1) := rust_test_helpers.c
54
55 ################################################################################
56 # You shouldn't find it that necessary to edit anything below this line.
57 ################################################################################
58
59 # While we're defining the native libraries for each target, we define some
60 # common rules used to build files for various targets.
61
62 RT_OUTPUT_DIR_$(1) := $(1)/rt
63
64 $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
65 @mkdir -p $$(@D)
66 @$$(call E, compile: $$@)
67 $$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
68 $$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt/hoedown/src) \
69 $$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt) \
70 $$(RUNTIME_CFLAGS_$(1))) $$<
71
72 $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(MKFILE_DEPS) \
73 $$(LLVM_CONFIG_$$(CFG_BUILD))
74 @mkdir -p $$(@D)
75 @$$(call E, compile: $$@)
76 $$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
77
78 # On MSVC targets the compiler's default include path (e.g. where to find system
79 # headers) is specified by the INCLUDE environment variable. This may not be set
80 # so the ./configure script scraped the relevant values and this is the location
81 # that we put them into cl.exe's environment.
82 ifeq ($$(findstring msvc,$(1)),msvc)
83 $$(RT_OUTPUT_DIR_$(1))/%.o: \
84 export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
85 $(1)/rustllvm/%.o: \
86 export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
87 endif
88 endef
89
90 $(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
91
92 # A macro for devining how to build third party libraries listed above (based
93 # on their dependencies).
94 #
95 # $(1) is the target
96 # $(2) is the lib name
97 define THIRD_PARTY_LIB
98
99 OBJS_$(2)_$(1) := $$(NATIVE_DEPS_$(2)_$(1):%=$$(RT_OUTPUT_DIR_$(1))/%)
100 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.c=.o)
101 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.cpp=.o)
102 OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.S=.o)
103 NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
104 $$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
105 @$$(call E, link: $$@)
106 $$(Q)$$(call CFG_CREATE_ARCHIVE_$(1),$$@) $$^
107
108 endef
109
110 $(foreach target,$(CFG_TARGET), \
111 $(eval $(call RUNTIME_RULES,$(target))))
112 $(foreach lib,$(NATIVE_LIBS), \
113 $(foreach target,$(CFG_TARGET), \
114 $(eval $(call THIRD_PARTY_LIB,$(target),$(lib)))))
115
116
117 ################################################################################
118 # Building third-party targets with external build systems
119 #
120 # This location is meant for dependencies which have external build systems. It
121 # is still assumed that the output of each of these steps is a static library
122 # in the correct location.
123 ################################################################################
124
125 define DEF_THIRD_PARTY_TARGETS
126
127 # $(1) is the target triple
128
129 ifeq ($$(CFG_WINDOWSY_$(1)),1)
130 # A bit of history here, this used to be --enable-lazy-lock added in #14006
131 # which was filed with jemalloc in jemalloc/jemalloc#83 which was also
132 # reported to MinGW: http://sourceforge.net/p/mingw-w64/bugs/395/
133 #
134 # When updating jemalloc to 4.0, however, it was found that binaries would
135 # exit with the status code STATUS_RESOURCE_NOT_OWNED indicating that a thread
136 # was unlocking a mutex it never locked. Disabling this "lazy lock" option
137 # seems to fix the issue, but it was enabled by default for MinGW targets in
138 # 13473c7 for jemalloc.
139 #
140 # As a result of all that, force disabling lazy lock on Windows, and after
141 # reading some code it at least *appears* that the initialization of mutexes
142 # is otherwise ok in jemalloc, so shouldn't cause problems hopefully...
143 #
144 # tl;dr: make windows behave like other platforms by disabling lazy locking,
145 # but requires passing an option due to a historical default with
146 # jemalloc.
147 JEMALLOC_ARGS_$(1) := --disable-lazy-lock
148 else ifeq ($(OSTYPE_$(1)), apple-ios)
149 JEMALLOC_ARGS_$(1) := --disable-tls
150 else ifeq ($(findstring android, $(OSTYPE_$(1))), android)
151 # We force android to have prefixed symbols because apparently replacement of
152 # the libc allocator doesn't quite work. When this was tested (unprefixed
153 # symbols), it was found that the `realpath` function in libc would allocate
154 # with libc malloc (not jemalloc malloc), and then the standard library would
155 # free with jemalloc free, causing a segfault.
156 #
157 # If the test suite passes, however, without symbol prefixes then we should be
158 # good to go!
159 JEMALLOC_ARGS_$(1) := --disable-tls --with-jemalloc-prefix=je_
160 else ifeq ($(findstring dragonfly, $(OSTYPE_$(1))), dragonfly)
161 JEMALLOC_ARGS_$(1) := --with-jemalloc-prefix=je_
162 endif
163
164 ifdef CFG_ENABLE_DEBUG_JEMALLOC
165 JEMALLOC_ARGS_$(1) += --enable-debug --enable-fill
166 endif
167
168 ################################################################################
169 # jemalloc
170 ################################################################################
171
172 ifdef CFG_ENABLE_FAST_MAKE
173 JEMALLOC_DEPS := $(S)/.gitmodules
174 else
175 JEMALLOC_DEPS := $(wildcard \
176 $(S)src/jemalloc/* \
177 $(S)src/jemalloc/*/* \
178 $(S)src/jemalloc/*/*/* \
179 $(S)src/jemalloc/*/*/*/*)
180 endif
181
182 # See #17183 for details, this file is touched during the build process so we
183 # don't want to consider it as a dependency.
184 JEMALLOC_DEPS := $(filter-out $(S)src/jemalloc/VERSION,$(JEMALLOC_DEPS))
185
186 JEMALLOC_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc)
187 ifeq ($$(CFG_WINDOWSY_$(1)),1)
188 JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_s)
189 else
190 JEMALLOC_REAL_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),jemalloc_pic)
191 endif
192 JEMALLOC_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(JEMALLOC_NAME_$(1))
193 JEMALLOC_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/jemalloc
194 JEMALLOC_LOCAL_$(1) := $$(JEMALLOC_BUILD_DIR_$(1))/lib/$$(JEMALLOC_REAL_NAME_$(1))
195
196 $$(JEMALLOC_LOCAL_$(1)): $$(JEMALLOC_DEPS) $$(MKFILE_DEPS)
197 @$$(call E, make: jemalloc)
198 cd "$$(JEMALLOC_BUILD_DIR_$(1))"; "$(S)src/jemalloc/configure" \
199 $$(JEMALLOC_ARGS_$(1)) $(CFG_JEMALLOC_FLAGS) \
200 --build=$$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$$(CFG_GNU_TRIPLE_$(1)) \
201 CC="$$(CC_$(1)) $$(CFG_JEMALLOC_CFLAGS_$(1))" \
202 AR="$$(AR_$(1))" \
203 RANLIB="$$(AR_$(1)) s" \
204 CPPFLAGS="-I $(S)src/rt/" \
205 EXTRA_CFLAGS="-g1 -ffunction-sections -fdata-sections"
206 $$(Q)$$(MAKE) -C "$$(JEMALLOC_BUILD_DIR_$(1))" build_lib_static
207
208 ifeq ($(1),$$(CFG_BUILD))
209 ifneq ($$(CFG_JEMALLOC_ROOT),)
210 $$(JEMALLOC_LIB_$(1)): $$(CFG_JEMALLOC_ROOT)/libjemalloc_pic.a
211 @$$(call E, copy: jemalloc)
212 $$(Q)cp $$< $$@
213 else
214 $$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
215 $$(Q)cp $$< $$@
216 endif
217 else
218 $$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
219 $$(Q)cp $$< $$@
220 endif
221
222 ################################################################################
223 # compiler-rt
224 ################################################################################
225
226 ifdef CFG_ENABLE_FAST_MAKE
227 COMPRT_DEPS := $(S)/.gitmodules
228 else
229 COMPRT_DEPS := $(wildcard \
230 $(S)src/compiler-rt/* \
231 $(S)src/compiler-rt/*/* \
232 $(S)src/compiler-rt/*/*/* \
233 $(S)src/compiler-rt/*/*/*/*)
234 endif
235
236 COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
237 COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
238 COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
239
240 ifeq ($$(findstring msvc,$(1)),msvc)
241 $$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS) $$(LLVM_CONFIG_$$(CFG_BUILD))
242 @$$(call E, cmake: compiler-rt)
243 $$(Q)cd "$$(COMPRT_BUILD_DIR_$(1))"; $$(CFG_CMAKE) "$(S)src/compiler-rt" \
244 -DCMAKE_BUILD_TYPE=$$(LLVM_BUILD_CONFIG_MODE) \
245 -DLLVM_CONFIG_PATH=$$(LLVM_CONFIG_$$(CFG_BUILD)) \
246 -G"$$(CFG_CMAKE_GENERATOR)"
247 $$(Q)$$(CFG_CMAKE) --build "$$(COMPRT_BUILD_DIR_$(1))" \
248 --target lib/builtins/builtins \
249 --config $$(LLVM_BUILD_CONFIG_MODE) \
250 -- //v:m //nologo
251 $$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/lib/windows/$$(LLVM_BUILD_CONFIG_MODE)/clang_rt.builtins-$$(HOST_$(1)).lib $$@
252 else
253 COMPRT_CC_$(1) := $$(CC_$(1))
254 COMPRT_AR_$(1) := $$(AR_$(1))
255 # We chomp -Werror here because GCC warns about the type signature of
256 # builtins not matching its own and the build fails. It's a bit hacky,
257 # but what can we do, we're building libclang-rt using GCC ......
258 COMPRT_CFLAGS_$(1) := $$(CFG_GCCISH_CFLAGS_$(1)) -Wno-error -std=c99
259
260 # FreeBSD Clang's packaging is problematic; it doesn't copy unwind.h to
261 # the standard include directory. This should really be in our changes to
262 # compiler-rt, but we override the CFLAGS here so there isn't much choice
263 ifeq ($$(findstring freebsd,$(1)),freebsd)
264 COMPRT_CFLAGS_$(1) += -I/usr/include/c++/v1
265 endif
266
267 ifeq ($$(findstring emscripten,$(1)),emscripten)
268
269 # FIXME: emscripten doesn't use compiler-rt and can't build it without
270 # further hacks
271 $$(COMPRT_LIB_$(1)):
272 touch $$@
273
274 else
275
276 $$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
277 @$$(call E, make: compiler-rt)
278 $$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
279 ProjSrcRoot="$(S)src/compiler-rt" \
280 ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
281 CC='$$(COMPRT_CC_$(1))' \
282 AR='$$(COMPRT_AR_$(1))' \
283 RANLIB='$$(COMPRT_AR_$(1)) s' \
284 CFLAGS="$$(COMPRT_CFLAGS_$(1))" \
285 TargetTriple=$(1) \
286 triple-builtins
287 $$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/builtins/libcompiler_rt.a $$@
288
289 endif # if emscripten
290 endif
291
292 ################################################################################
293 # libbacktrace
294 #
295 # We use libbacktrace on linux to get symbols in backtraces, but only on linux.
296 # Elsewhere we use other system utilities, so this library is only built on
297 # linux.
298 ################################################################################
299
300 BACKTRACE_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),backtrace)
301 BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
302 BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace
303
304 # We don't use this on platforms that aren't linux-based (with the exception of
305 # msys2/mingw builds on windows, which use it to read the dwarf debug
306 # information) so just make the file available, the compilation of libstd won't
307 # actually build it.
308 ifeq ($$(findstring darwin,$$(OSTYPE_$(1))),darwin)
309 # See comment above
310 $$(BACKTRACE_LIB_$(1)):
311 touch $$@
312
313 else
314 ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
315 # See comment above
316 $$(BACKTRACE_LIB_$(1)):
317 touch $$@
318 else
319
320 ifeq ($$(findstring msvc,$(1)),msvc)
321 # See comment above
322 $$(BACKTRACE_LIB_$(1)):
323 touch $$@
324 else
325
326 ifeq ($$(findstring emscripten,$(1)),emscripten)
327 # FIXME: libbacktrace doesn't understand the emscripten triple
328 $$(BACKTRACE_LIB_$(1)):
329 touch $$@
330 else
331
332 ifdef CFG_ENABLE_FAST_MAKE
333 BACKTRACE_DEPS := $(S)/.gitmodules
334 else
335 BACKTRACE_DEPS := $(wildcard $(S)src/libbacktrace/*)
336 endif
337
338 # We need to export CFLAGS because otherwise it doesn't pick up cross compile
339 # builds. If libbacktrace doesn't realize this, it will attempt to read 64-bit
340 # elf headers when compiled for a 32-bit system, yielding blank backtraces.
341 #
342 # This also removes the -Werror flag specifically to prevent errors during
343 # configuration.
344 #
345 # Down below you'll also see echos into the config.h generated by the
346 # ./configure script. This is done to force libbacktrace to *not* use the
347 # atomic/sync functionality because it pulls in unnecessary dependencies and we
348 # never use it anyway.
349 #
350 # We also use `env PWD=` to clear the PWD environment variable, and then
351 # execute the command in a new shell. This is necessary to workaround a
352 # buildbot/msys2 bug: the shell is launched with PWD set to a windows-style path,
353 # which results in all further uses of `pwd` also printing a windows-style path,
354 # which breaks libbacktrace's configure script. Clearing PWD within the same
355 # shell is not sufficient.
356
357 $$(BACKTRACE_BUILD_DIR_$(1))/Makefile: $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
358 @$$(call E, configure: libbacktrace for $(1))
359 $$(Q)rm -rf $$(BACKTRACE_BUILD_DIR_$(1))
360 $$(Q)mkdir -p $$(BACKTRACE_BUILD_DIR_$(1))
361 $$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && env \
362 PWD= \
363 CC="$$(CC_$(1))" \
364 AR="$$(AR_$(1))" \
365 RANLIB="$$(AR_$(1)) s" \
366 CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1)) -Wno-error -fno-stack-protector" \
367 $(S)src/libbacktrace/configure --build=$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$(CFG_GNU_TRIPLE_$(1)))
368 $$(Q)echo '#undef HAVE_ATOMIC_FUNCTIONS' >> \
369 $$(BACKTRACE_BUILD_DIR_$(1))/config.h
370 $$(Q)echo '#undef HAVE_SYNC_FUNCTIONS' >> \
371 $$(BACKTRACE_BUILD_DIR_$(1))/config.h
372
373 $$(BACKTRACE_LIB_$(1)): $$(BACKTRACE_BUILD_DIR_$(1))/Makefile $$(MKFILE_DEPS)
374 @$$(call E, make: libbacktrace)
375 $$(Q)$$(MAKE) -C $$(BACKTRACE_BUILD_DIR_$(1)) \
376 INCDIR=$(S)src/libbacktrace
377 $$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
378
379 endif # endif for emscripten
380 endif # endif for msvc
381 endif # endif for ios
382 endif # endif for darwin
383
384 ################################################################################
385 # libc/libunwind for musl
386 #
387 # When we're building a musl-like target we're going to link libc/libunwind
388 # statically into the standard library and liblibc, so we need to make sure
389 # they're in a location that we can find
390 ################################################################################
391
392 ifeq ($$(findstring musl,$(1)),musl)
393 $$(RT_OUTPUT_DIR_$(1))/%: $$(CFG_MUSL_ROOT)/lib/%
394 cp $$^ $$@
395 else
396 # Ask gcc where it is
397 $$(RT_OUTPUT_DIR_$(1))/%:
398 cp $$(shell $$(CC_$(1)) -print-file-name=$$(@F)) $$@
399 endif
400
401 endef
402
403 # Instantiate template for all stages/targets
404 $(foreach target,$(CFG_TARGET), \
405 $(eval $(call DEF_THIRD_PARTY_TARGETS,$(target))))