1 # Copyright 2014-2015 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.
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.
11 ######################################################################
12 # Version numbers and strings
13 ######################################################################
18 # An optional number to put after the label, e.g. '.2' -> '-beta.2'
19 # NB Make sure it starts with a dot to conform to semver pre-release
20 # versions (section 9)
21 CFG_PRERELEASE_VERSION=.1
23 # Append a version-dependent hash to each library, so we can install different
24 # versions in the same place
25 CFG_FILENAME_EXTRA=$(shell printf '%s' $(CFG_RELEASE)$(CFG_EXTRA_FILENAME) | $(CFG_HASH_COMMAND))
27 ifeq ($(CFG_RELEASE_CHANNEL),stable)
28 # This is the normal semver version string, e.g. "0.12.0", "0.12.0-nightly"
29 CFG_RELEASE=$(CFG_RELEASE_NUM)
30 # This is the string used in dist artifact file names, e.g. "0.12.0", "nightly"
31 CFG_PACKAGE_VERS=$(CFG_RELEASE_NUM)
32 CFG_DISABLE_UNSTABLE_FEATURES=1
34 ifeq ($(CFG_RELEASE_CHANNEL),beta)
35 CFG_RELEASE=$(CFG_RELEASE_NUM)-beta$(CFG_PRERELEASE_VERSION)
36 # When building beta distributables just reuse the same "beta" name
37 # so when we upload we'll always override the previous beta. This
38 # doesn't actually impact the version reported by rustc - it's just
41 CFG_DISABLE_UNSTABLE_FEATURES=1
43 ifeq ($(CFG_RELEASE_CHANNEL),nightly)
44 CFG_RELEASE=$(CFG_RELEASE_NUM)-nightly
45 # When building nightly distributables just reuse the same "nightly" name
46 # so when we upload we'll always override the previous nighly. This
47 # doesn't actually impact the version reported by rustc - it's just
49 CFG_PACKAGE_VERS=nightly
51 ifeq ($(CFG_RELEASE_CHANNEL),dev)
52 CFG_RELEASE=$(CFG_RELEASE_NUM)-dev
53 CFG_PACKAGE_VERS=$(CFG_RELEASE_NUM)-dev
56 # The name of the package to use for creating tarballs, installers etc.
57 CFG_PACKAGE_NAME=rustc-$(CFG_PACKAGE_VERS)
59 # The version string plus commit information - this is what rustc reports
60 CFG_VERSION = $(CFG_RELEASE)
61 CFG_GIT_DIR := $(CFG_SRC_DIR).git
62 # since $(CFG_GIT) may contain spaces (especially on Windows),
63 # we need to escape them. (" " to r"\ ")
64 # Note that $(subst ...) ignores space after `subst`,
65 # so we use a hack: define $(SPACE) which contains space character.
69 ifneq ($(wildcard $(subst $(SPACE),\$(SPACE),$(CFG_GIT_DIR))),)
70 CFG_VER_DATE = $(shell git --git-dir='$(CFG_GIT_DIR)' log -1 --date=short --pretty=format:'%cd')
71 CFG_VER_HASH = $(shell git --git-dir='$(CFG_GIT_DIR)' rev-parse HEAD)
72 CFG_SHORT_VER_HASH = $(shell git --git-dir='$(CFG_GIT_DIR)' rev-parse --short=9 HEAD)
73 CFG_VERSION += ($(CFG_SHORT_VER_HASH) $(CFG_VER_DATE))
77 # Windows exe's need numeric versions - don't use anything but
78 # numbers and dots here
79 CFG_VERSION_WIN = $(CFG_RELEASE_NUM)
81 CFG_INFO := $(info cfg: version $(CFG_VERSION))
83 ######################################################################
85 ######################################################################
87 MKFILE_DEPS := config.stamp $(call rwildcard,$(CFG_SRC_DIR)mk/,*)
88 MKFILES_FOR_TARBALL:=$(MKFILE_DEPS)
89 ifneq ($(NO_MKFILE_DEPS),)
92 NON_BUILD_HOST = $(filter-out $(CFG_BUILD),$(CFG_HOST))
93 NON_BUILD_TARGET = $(filter-out $(CFG_BUILD),$(CFG_TARGET))
95 ifneq ($(MAKE_RESTARTS),)
96 CFG_INFO := $(info cfg: make restarts: $(MAKE_RESTARTS))
99 CFG_INFO := $(info cfg: build triple $(CFG_BUILD))
100 CFG_INFO := $(info cfg: host triples $(CFG_HOST))
101 CFG_INFO := $(info cfg: target triples $(CFG_TARGET))
103 ifneq ($(wildcard $(NON_BUILD_HOST)),)
104 CFG_INFO := $(info cfg: non-build host triples $(NON_BUILD_HOST))
106 ifneq ($(wildcard $(NON_BUILD_TARGET)),)
107 CFG_INFO := $(info cfg: non-build target triples $(NON_BUILD_TARGET))
110 CFG_RUSTC_FLAGS := $(RUSTFLAGS)
112 CFG_GCCISH_LINK_FLAGS :=
114 CFG_JEMALLOC_FLAGS :=
116 ifdef CFG_DISABLE_OPTIMIZE
117 $(info cfg: disabling rustc optimization (CFG_DISABLE_OPTIMIZE))
119 CFG_JEMALLOC_FLAGS += --enable-debug
121 # The rtopt cfg turns off runtime sanity checks
122 CFG_RUSTC_FLAGS += -O --cfg rtopt
125 CFG_JEMALLOC_FLAGS += $(JEMALLOC_FLAGS)
127 ifdef CFG_ENABLE_DEBUG_ASSERTIONS
128 $(info cfg: enabling debug assertions (CFG_ENABLE_DEBUG_ASSERTIONS))
129 CFG_RUSTC_FLAGS += -C debug-assertions=on
132 ifdef CFG_ENABLE_DEBUGINFO
133 $(info cfg: enabling debuginfo (CFG_ENABLE_DEBUGINFO))
134 CFG_RUSTC_FLAGS += -g
138 CFG_RUSTC_FLAGS += --save-temps
141 CFG_RUSTC_FLAGS += -Z asm-comments
144 CFG_RUSTC_FLAGS += -Z time-passes
146 ifdef TIME_LLVM_PASSES
147 CFG_RUSTC_FLAGS += -Z time-llvm-passes
150 CFG_RUSTC_FLAGS += -Z trace
152 ifndef CFG_DISABLE_RPATH
153 CFG_RUSTC_FLAGS += -C rpath
156 # The executables crated during this compilation process have no need to include
157 # static copies of libstd and libextra. We also generate dynamic versions of all
158 # libraries, so in the interest of space, prefer dynamic linking throughout the
159 # compilation process.
161 # Note though that these flags are omitted for the *bins* in stage2+. This means
162 # that the snapshot will be generated with a statically linked rustc so we only
163 # have to worry about the distribution of one file (with its native dynamic
165 RUSTFLAGS_STAGE0 += -C prefer-dynamic -C no-stack-check
166 RUSTFLAGS_STAGE1 += -C prefer-dynamic
167 RUST_LIB_FLAGS_ST2 += -C prefer-dynamic
168 RUST_LIB_FLAGS_ST3 += -C prefer-dynamic
170 # Landing pads require a lot of codegen. We can get through bootstrapping faster
171 # by not emitting them.
173 ifdef CFG_DISABLE_STAGE0_LANDING_PADS
174 RUSTFLAGS_STAGE0 += -Z no-landing-pads
177 # platform-specific auto-configuration
178 include $(CFG_SRC_DIR)mk/platform.mk
180 # Run the stage1/2 compilers under valgrind
181 ifdef VALGRIND_COMPILE
182 CFG_VALGRIND_COMPILE := $(CFG_VALGRIND)
184 CFG_VALGRIND_COMPILE :=
188 ifndef CFG_DISABLE_VALGRIND_RPASS
189 $(info cfg: enabling valgrind run-pass tests (CFG_ENABLE_VALGRIND_RPASS))
190 $(info cfg: valgrind-rpass command set to $(CFG_VALGRIND))
191 CFG_VALGRIND_RPASS :=$(CFG_VALGRIND)
193 $(info cfg: disabling valgrind run-pass tests)
194 CFG_VALGRIND_RPASS :=
198 ifdef CFG_ENABLE_VALGRIND
199 $(info cfg: enabling valgrind (CFG_ENABLE_VALGRIND))
200 CFG_JEMALLOC_FLAGS += --enable-valgrind
205 ######################################################################
206 # Target-and-rule "utility variables"
207 ######################################################################
209 define DEF_FOR_TARGET
210 X_$(1) := $(CFG_EXE_SUFFIX_$(1))
211 ifndef CFG_LLVM_TARGET_$(1)
212 CFG_LLVM_TARGET_$(1) := $(1)
215 $(foreach target,$(CFG_TARGET), \
216 $(eval $(call DEF_FOR_TARGET,$(target))))
218 # "Source" files we generate in builddir along the way.
221 # Delete the built-in rules.
230 ######################################################################
231 # Cleaning out old crates
232 ######################################################################
234 # $(1) is the path for directory to match against
235 # $(2) is the glob to use in the match
237 # Note that a common bug is to accidentally construct the glob denoted
238 # by $(2) with a space character prefix, which invalidates the
239 # construction $(1)$(2).
240 define CHECK_FOR_OLD_GLOB_MATCHES
241 $(Q)MATCHES="$(wildcard $(1))"; if [ -n "$$MATCHES" ] ; then echo "warning: there are previous" \'$(notdir $(2))\' "libraries:" $$MATCHES; fi
244 # Same interface as above, but deletes rather than just listing the files.
246 define REMOVE_ALL_OLD_GLOB_MATCHES
247 $(Q)MATCHES="$(wildcard $(1))"; if [ -n "$$MATCHES" ] ; then echo "warning: removing previous" \'$(notdir $(1))\' "libraries:" $$MATCHES; rm $$MATCHES ; fi
250 define REMOVE_ALL_OLD_GLOB_MATCHES
251 $(Q)MATCHES="$(wildcard $(1))"; if [ -n "$$MATCHES" ] ; then rm $$MATCHES ; fi
255 # We use a different strategy for LIST_ALL_OLD_GLOB_MATCHES_EXCEPT
256 # than in the macros above because it needs the result of running the
257 # `ls` command after other rules in the command list have run; the
258 # macro-expander for $(wildcard ...) would deliver its results too
259 # soon. (This is in contrast to the macros above, which are meant to
260 # be run at the outset of a command list in a rule.)
262 define LIST_ALL_OLD_GLOB_MATCHES
263 @echo "info: now are following matches for" '$(notdir $(1))' "libraries:"
264 @( ls $(1) 2>/dev/null || true )
267 define LIST_ALL_OLD_GLOB_MATCHES
271 ######################################################################
273 ######################################################################
275 LLVM_OPTIONAL_COMPONENTS=x86 arm aarch64 mips powerpc pnacl
276 LLVM_REQUIRED_COMPONENTS=ipo bitreader bitwriter linker asmparser mcjit \
277 interpreter instrumentation
279 ifneq ($(CFG_LLVM_ROOT),)
280 # Ensure we only try to link targets that the installed LLVM actually has:
281 LLVM_COMPONENTS := $(filter $(shell $(CFG_LLVM_ROOT)/bin/llvm-config$(X_$(CFG_BUILD)) --components),\
282 $(LLVM_OPTIONAL_COMPONENTS)) $(LLVM_REQUIRED_COMPONENTS)
284 LLVM_COMPONENTS := $(LLVM_OPTIONAL_COMPONENTS) $(LLVM_REQUIRED_COMPONENTS)
287 # Only build these LLVM tools
288 LLVM_TOOLS=bugpoint llc llvm-ar llvm-as llvm-dis llvm-mc opt llvm-extract
291 # The configure script defines these variables with the target triples
292 # separated by Z. This defines new ones with the expected format.
293 ifeq ($$(CFG_LLVM_ROOT),)
294 CFG_LLVM_BUILD_DIR_$(1):=$$(CFG_LLVM_BUILD_DIR_$(subst -,_,$(1)))
295 CFG_LLVM_INST_DIR_$(1):=$$(CFG_LLVM_INST_DIR_$(subst -,_,$(1)))
297 CFG_LLVM_INST_DIR_$(1):=$$(CFG_LLVM_ROOT)
300 # Any rules that depend on LLVM should depend on LLVM_CONFIG
301 LLVM_CONFIG_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-config$$(X_$(1))
302 LLVM_MC_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-mc$$(X_$(1))
303 LLVM_AR_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-ar$$(X_$(1))
304 LLVM_VERSION_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --version)
305 LLVM_BINDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --bindir)
306 LLVM_INCDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --includedir)
307 LLVM_LIBDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --libdir)
308 LLVM_LIBDIR_RUSTFLAGS_$(1)=-L native="$$(LLVM_LIBDIR_$(1))"
309 LLVM_LDFLAGS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --ldflags)
310 ifeq ($$(findstring freebsd,$(1)),freebsd)
311 # On FreeBSD, it may search wrong headers (that are for pre-installed LLVM),
312 # so we replace -I with -iquote to ensure that it searches bundled LLVM first.
313 LLVM_CXXFLAGS_$(1)=$$(subst -I, -iquote , $$(shell "$$(LLVM_CONFIG_$(1))" --cxxflags))
315 LLVM_CXXFLAGS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --cxxflags)
317 LLVM_HOST_TRIPLE_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --host-target)
319 LLVM_AS_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-as$$(X_$(1))
320 LLC_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llc$$(X_$(1))
322 LLVM_ALL_COMPONENTS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --components)
326 $(foreach host,$(CFG_HOST), \
327 $(eval $(call DEF_LLVM_VARS,$(host))))
329 ######################################################################
330 # Exports for sub-utilities
331 ######################################################################
333 # Note that any variable that re-configure should pick up needs to be
337 export CFG_SRC_DIR_RELATIVE
346 export CFG_VERSION_WIN
348 export CFG_PACKAGE_NAME
350 export CFG_RELEASE_CHANNEL
354 export CFG_LIBDIR_RELATIVE
355 export CFG_DISABLE_INJECT_STD_VERSION
356 ifdef CFG_DISABLE_UNSTABLE_FEATURES
357 CFG_INFO := $(info cfg: disabling unstable features (CFG_DISABLE_UNSTABLE_FEATURES))
358 # Turn on feature-staging
359 export CFG_DISABLE_UNSTABLE_FEATURES
360 # Subvert unstable feature lints to do the self-build
361 export RUSTC_BOOTSTRAP_KEY:=$(CFG_BOOTSTRAP_KEY)
363 export CFG_BOOTSTRAP_KEY
365 ######################################################################
366 # Per-stage targets and runner
367 ######################################################################
369 # Valid setting-strings are 'all', 'none', 'gdb', 'lldb'
370 # This 'function' will determine which debugger scripts to copy based on a
371 # target triple. See debuggers.mk for more information.
372 TRIPLE_TO_DEBUGGER_SCRIPT_SETTING=\
373 $(if $(findstring windows,$(1)),none,$(if $(findstring darwin,$(1)),lldb,gdb))
378 # $(1) is the stage number
379 # $(2) is the target triple
380 # $(3) is the host triple
382 # Destinations of artifacts for the host compiler
383 HROOT$(1)_H_$(3) = $(3)/stage$(1)
384 HBIN$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/bin
386 ifeq ($$(CFG_WINDOWSY_$(3)),1)
387 # On Windows we always store host runtime libraries in the 'bin' directory because
388 # there's no rpath. Target libraries go under $CFG_LIBDIR_RELATIVE (usually 'lib').
389 HLIB_RELATIVE$(1)_H_$(3) = bin
390 TROOT$(1)_T_$(2)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(CFG_LIBDIR_RELATIVE)/rustlib/$(2)
391 # Remove the next 3 lines after a snapshot
393 RUSTFLAGS_STAGE0 += -L $$(TROOT$(1)_T_$(2)_H_$(3))/lib
399 HLIB_RELATIVE$(1)_H_$(3) = lib
401 HLIB_RELATIVE$(1)_H_$(3) = $$(CFG_LIBDIR_RELATIVE)
403 TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/rustlib/$(2)
406 HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(HLIB_RELATIVE$(1)_H_$(3))
408 # Destinations of artifacts for target architectures
409 TBIN$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/bin
410 TLIB$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/lib
412 # Preqrequisites for using the stageN compiler
414 HSREQ$(1)_H_$(3) = $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3))
417 $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
419 tmp/install-debugger-scripts$(1)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(3)).done
422 # Prerequisites for using the stageN compiler to build target artifacts
423 TSREQ$(1)_T_$(2)_H_$(3) = \
424 $$(HSREQ$(1)_H_$(3)) \
425 $$(foreach obj,$$(REQUIRED_OBJECTS_$(2)),\
426 $$(TLIB$(1)_T_$(2)_H_$(3))/$$(obj))
428 # Prerequisites for a working stageN compiler and libraries, for a specific
430 SREQ$(1)_T_$(2)_H_$(3) = \
431 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
432 $$(foreach dep,$$(TARGET_CRATES), \
433 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
434 tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(2)).done
436 # Prerequisites for a working stageN compiler and complete set of target
438 CSREQ$(1)_T_$(2)_H_$(3) = \
439 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
440 $$(HBIN$(1)_H_$(3))/rustdoc$$(X_$(3)) \
441 $$(foreach dep,$$(CRATES),$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep))
444 # Don't run the stage0 compiler under valgrind - that ship has sailed
445 CFG_VALGRIND_COMPILE$(1) =
447 CFG_VALGRIND_COMPILE$(1) = $$(CFG_VALGRIND_COMPILE)
450 # Add RUSTFLAGS_STAGEN values to the build command
451 EXTRAFLAGS_STAGE$(1) = $$(RUSTFLAGS_STAGE$(1))
453 CFGFLAG$(1)_T_$(2)_H_$(3) = stage$(1)
457 # Same macro/variables as above, but defined in a separate loop so it can use
458 # all the variables above for all archs. The RPATH_VAR setup sometimes needs to
459 # reach across triples to get things in order.
461 # Defines (with the standard $(1)_T_$(2)_H_$(3) suffix):
462 # * `LD_LIBRARY_PATH_ENV_NAME`: the name for the key to use in the OS
463 # environment to access or extend the lookup path for dynamic
464 # libraries. Note on Windows, that key is `$PATH`, and thus not
465 # only conflates programs with dynamic libraries, but also often
466 # contains spaces which confuse make.
467 # * `LD_LIBRARY_PATH_ENV_HOSTDIR`: the entry to add to lookup path for the host
468 # * `LD_LIBRARY_PATH_ENV_TARGETDIR`: the entry to add to lookup path for target
470 # Below that, HOST_RPATH_VAR and TARGET_RPATH_VAR are defined in terms of the
475 ifeq ($$(OSTYPE_$(3)),apple-darwin)
476 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := DYLD_LIBRARY_PATH
478 ifeq ($$(CFG_WINDOWSY_$(3)),1)
479 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := PATH
481 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := LD_LIBRARY_PATH
485 LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3) := \
486 $$(CURDIR)/$$(HLIB$(1)_H_$(3)):$$(CFG_LLVM_INST_DIR_$(3))/lib
487 LD_LIBRARY_PATH_ENV_TARGETDIR$(1)_T_$(2)_H_$(3) := \
488 $$(CURDIR)/$$(TLIB1_T_$(2)_H_$(CFG_BUILD))
490 HOST_RPATH_VAR$(1)_T_$(2)_H_$(3) := \
491 $$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))=$$(LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3)):$$$$$$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))
492 TARGET_RPATH_VAR$(1)_T_$(2)_H_$(3) := \
493 $$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))=$$(LD_LIBRARY_PATH_ENV_TARGETDIR$(1)_T_$(2)_H_$(3)):$$$$$$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))
495 RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(HOST_RPATH_VAR$(1)_T_$(2)_H_$(3))
497 # Pass --cfg stage0 only for the build->host part of stage0;
498 # if you're building a cross config, the host->* parts are
499 # effectively stage1, since it uses the just-built stage0.
501 # This logic is similar to how the LD_LIBRARY_PATH variable must
502 # change be slightly different when doing cross compilations.
503 # The build doesn't copy over all target libraries into
504 # a new directory, so we need to point the library path at
505 # the build directory where all the target libraries came
506 # from (the stage0 build host). Otherwise the relative rpaths
507 # inside of the rustc binary won't get resolved correctly.
509 ifneq ($(strip $(CFG_BUILD)),$(strip $(3)))
510 CFGFLAG$(1)_T_$(2)_H_$(3) = stage1
512 RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(TARGET_RPATH_VAR$(1)_T_$(2)_H_$(3))
516 STAGE$(1)_T_$(2)_H_$(3) := \
517 $$(Q)$$(RPATH_VAR$(1)_T_$(2)_H_$(3)) \
518 $$(call CFG_RUN_TARG_$(3),$(1), \
519 $$(CFG_VALGRIND_COMPILE$(1)) \
520 $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
521 --cfg $$(CFGFLAG$(1)_T_$(2)_H_$(3)) \
522 $$(CFG_RUSTC_FLAGS) $$(EXTRAFLAGS_STAGE$(1)) --target=$(2)) \
527 $(foreach build,$(CFG_HOST), \
528 $(eval $(foreach target,$(CFG_TARGET), \
529 $(eval $(foreach stage,$(STAGES), \
530 $(eval $(call SREQ,$(stage),$(target),$(build))))))))
532 $(foreach build,$(CFG_HOST), \
533 $(eval $(foreach target,$(CFG_TARGET), \
534 $(eval $(foreach stage,$(STAGES), \
535 $(eval $(call SREQ_CMDS,$(stage),$(target),$(build))))))))
537 ######################################################################
540 # Builds a functional Rustc for the given host.
541 ######################################################################
543 define DEF_RUSTC_STAGE_TARGET
544 # $(1) == architecture
547 rustc-stage$(2)-H-$(1): \
548 $$(foreach target,$$(CFG_TARGET),$$(SREQ$(2)_T_$$(target)_H_$(1)))
552 $(foreach host,$(CFG_HOST), \
553 $(eval $(foreach stage,1 2 3, \
554 $(eval $(call DEF_RUSTC_STAGE_TARGET,$(host),$(stage))))))
556 rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
557 rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
558 rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
560 define DEF_RUSTC_TARGET
561 # $(1) == architecture
563 rustc-H-$(1): rustc-stage2-H-$(1)
566 $(foreach host,$(CFG_TARGET), \
567 $(eval $(call DEF_RUSTC_TARGET,$(host))))
569 rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
570 rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
571 rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
572 rustc: rustc-H-$(CFG_BUILD)
574 rustc-H-all: $(foreach host,$(CFG_HOST),rustc-H-$(host))
576 ######################################################################
578 ######################################################################
583 ifneq ($$(findstring $(1),$$(CFG_HOST)),)
585 all-target-$(1)-host-$(2): $$(CSREQ2_T_$(1)_H_$(2))
587 # This is a target only
588 all-target-$(1)-host-$(2): $$(SREQ2_T_$(1)_H_$(2))
592 $(foreach target,$(CFG_TARGET), \
593 $(foreach host,$(CFG_HOST), \
594 $(eval $(call ALL_TARGET_N,$(target),$(host)))))
596 ALL_TARGET_RULES = $(foreach target,$(CFG_TARGET), \
597 $(foreach host,$(CFG_HOST), \
598 all-target-$(target)-host-$(host)))
600 all: $(ALL_TARGET_RULES) $(GENERATED) docs
602 ######################################################################
603 # Build system documentation
604 ######################################################################
606 # $(1) is the name of the doc <section> in Makefile.in
607 # pick everything between tags | remove first line | remove last line
608 # | remove extra (?) line | strip leading `#` from lines
609 SHOW_DOCS = $(Q)awk '/<$(1)>/,/<\/$(1)>/' $(S)/Makefile.in | sed '1d' | sed '$$d' | sed 's/^\# \?//'
612 $(call SHOW_DOCS,help)
615 $(call SHOW_DOCS,tips)
618 $(call SHOW_DOCS,nitty-gritty)