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) | $(CFG_HASH_COMMAND))
27 ifeq ($(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 # Turn off broken quarantine (see jemalloc/jemalloc#161)
115 CFG_JEMALLOC_FLAGS := --disable-fill
117 ifdef CFG_DISABLE_OPTIMIZE
118 $(info cfg: disabling rustc optimization (CFG_DISABLE_OPTIMIZE))
120 CFG_JEMALLOC_FLAGS += --enable-debug
122 # The rtopt cfg turns off runtime sanity checks
123 CFG_RUSTC_FLAGS += -O --cfg rtopt
126 CFG_JEMALLOC_FLAGS += $(JEMALLOC_FLAGS)
128 ifdef CFG_ENABLE_DEBUG_ASSERTIONS
129 $(info cfg: enabling debug assertions (CFG_ENABLE_DEBUG_ASSERTIONS))
130 CFG_RUSTC_FLAGS += -C debug-assertions=on
133 ifdef CFG_ENABLE_DEBUGINFO
134 $(info cfg: enabling debuginfo (CFG_ENABLE_DEBUGINFO))
135 CFG_RUSTC_FLAGS += -g
139 CFG_RUSTC_FLAGS += --save-temps
142 CFG_RUSTC_FLAGS += -Z asm-comments
145 CFG_RUSTC_FLAGS += -Z time-passes
147 ifdef TIME_LLVM_PASSES
148 CFG_RUSTC_FLAGS += -Z time-llvm-passes
151 CFG_RUSTC_FLAGS += -Z trace
153 ifdef CFG_ENABLE_RPATH
154 CFG_RUSTC_FLAGS += -C rpath
157 # The executables crated during this compilation process have no need to include
158 # static copies of libstd and libextra. We also generate dynamic versions of all
159 # libraries, so in the interest of space, prefer dynamic linking throughout the
160 # compilation process.
162 # Note though that these flags are omitted for the *bins* in stage2+. This means
163 # that the snapshot will be generated with a statically linked rustc so we only
164 # have to worry about the distribution of one file (with its native dynamic
166 RUSTFLAGS_STAGE0 += -C prefer-dynamic -C no-stack-check
167 RUSTFLAGS_STAGE1 += -C prefer-dynamic
168 RUST_LIB_FLAGS_ST2 += -C prefer-dynamic
169 RUST_LIB_FLAGS_ST3 += -C prefer-dynamic
171 # Landing pads require a lot of codegen. We can get through bootstrapping faster
172 # by not emitting them.
174 ifdef CFG_DISABLE_STAGE0_LANDING_PADS
175 RUSTFLAGS_STAGE0 += -Z no-landing-pads
178 # platform-specific auto-configuration
179 include $(CFG_SRC_DIR)mk/platform.mk
181 # Run the stage1/2 compilers under valgrind
182 ifdef VALGRIND_COMPILE
183 CFG_VALGRIND_COMPILE :=$(CFG_VALGRIND)
185 CFG_VALGRIND_COMPILE :=
189 ifndef CFG_DISABLE_VALGRIND_RPASS
190 $(info cfg: enabling valgrind run-pass tests (CFG_ENABLE_VALGRIND_RPASS))
191 $(info cfg: valgrind-rpass command set to $(CFG_VALGRIND))
192 CFG_VALGRIND_RPASS :=$(CFG_VALGRIND)
194 $(info cfg: disabling valgrind run-pass tests)
195 CFG_VALGRIND_RPASS :=
199 ifdef CFG_ENABLE_VALGRIND
200 $(info cfg: enabling valgrind (CFG_ENABLE_VALGRIND))
205 ######################################################################
206 # Target-and-rule "utility variables"
207 ######################################################################
209 define DEF_FOR_TARGET
210 X_$(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 $$MATCHES ; fi
255 # We use a different strategy for LIST_ALL_OLD_GLOB_MATCHES_EXCEPT
256 # than in the macros above because it needs the result of running the
257 # `ls` command after other rules in the command list have run; the
258 # macro-expander for $(wildcard ...) would deliver its results too
259 # soon. (This is in contrast to the macros above, which are meant to
260 # be run at the outset of a command list in a rule.)
262 define LIST_ALL_OLD_GLOB_MATCHES
263 @echo "info: now are following matches for" '$(notdir $(1))' "libraries:"
264 @( ls $(1) 2>/dev/null || true )
267 define LIST_ALL_OLD_GLOB_MATCHES
271 ######################################################################
273 ######################################################################
276 LLVM_COMPONENTS=x86 arm aarch64 mips powerpc ipo bitreader bitwriter linker asmparser mcjit \
277 interpreter instrumentation
279 # Only build these LLVM tools
280 LLVM_TOOLS=bugpoint llc llvm-ar llvm-as llvm-dis llvm-mc opt llvm-extract
283 # The configure script defines these variables with the target triples
284 # separated by Z. This defines new ones with the expected format.
285 ifeq ($$(CFG_LLVM_ROOT),)
286 CFG_LLVM_BUILD_DIR_$(1):=$$(CFG_LLVM_BUILD_DIR_$(subst -,_,$(1)))
287 CFG_LLVM_INST_DIR_$(1):=$$(CFG_LLVM_INST_DIR_$(subst -,_,$(1)))
289 CFG_LLVM_INST_DIR_$(1):=$$(CFG_LLVM_ROOT)
292 # Any rules that depend on LLVM should depend on LLVM_CONFIG
293 LLVM_CONFIG_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-config$$(X_$(1))
294 LLVM_MC_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-mc$$(X_$(1))
295 LLVM_AR_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-ar$$(X_$(1))
296 LLVM_VERSION_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --version)
297 LLVM_BINDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --bindir)
298 LLVM_INCDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --includedir)
299 LLVM_LIBDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --libdir)
300 LLVM_LIBDIR_RUSTFLAGS_$(1)=-L native="$$(LLVM_LIBDIR_$(1))"
301 LLVM_LDFLAGS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --ldflags)
302 ifeq ($$(findstring freebsd,$(1)),freebsd)
303 # On FreeBSD, it may search wrong headers (that are for pre-installed LLVM),
304 # so we replace -I with -iquote to ensure that it searches bundled LLVM first.
305 LLVM_CXXFLAGS_$(1)=$$(subst -I, -iquote , $$(shell "$$(LLVM_CONFIG_$(1))" --cxxflags))
307 LLVM_CXXFLAGS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --cxxflags)
309 LLVM_HOST_TRIPLE_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --host-target)
311 LLVM_AS_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-as$$(X_$(1))
312 LLC_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llc$$(X_$(1))
316 $(foreach host,$(CFG_HOST), \
317 $(eval $(call DEF_LLVM_VARS,$(host))))
319 ######################################################################
320 # Exports for sub-utilities
321 ######################################################################
323 # Note that any variable that re-configure should pick up needs to be
327 export CFG_SRC_DIR_RELATIVE
336 export CFG_VERSION_WIN
338 export CFG_PACKAGE_NAME
340 export CFG_RELEASE_CHANNEL
344 export CFG_LIBDIR_RELATIVE
345 export CFG_DISABLE_INJECT_STD_VERSION
346 ifdef CFG_DISABLE_UNSTABLE_FEATURES
347 CFG_INFO := $(info cfg: disabling unstable features (CFG_DISABLE_UNSTABLE_FEATURES))
348 # Turn on feature-staging
349 export CFG_DISABLE_UNSTABLE_FEATURES
350 # Subvert unstable feature lints to do the self-build
351 export RUSTC_BOOTSTRAP_KEY:=$(CFG_BOOTSTRAP_KEY)
353 export CFG_BOOTSTRAP_KEY
355 ######################################################################
356 # Per-stage targets and runner
357 ######################################################################
359 # Valid setting-strings are 'all', 'none', 'gdb', 'lldb'
360 # This 'function' will determine which debugger scripts to copy based on a
361 # target triple. See debuggers.mk for more information.
362 TRIPLE_TO_DEBUGGER_SCRIPT_SETTING=\
363 $(if $(findstring windows,$(1)),none,$(if $(findstring darwin,$(1)),lldb,gdb))
368 # $(1) is the stage number
369 # $(2) is the target triple
370 # $(3) is the host triple
372 # Destinations of artifacts for the host compiler
373 HROOT$(1)_H_$(3) = $(3)/stage$(1)
374 HBIN$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/bin
375 ifeq ($$(CFG_WINDOWSY_$(3)),1)
376 HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(CFG_LIBDIR_RELATIVE)
379 HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/lib
381 HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(CFG_LIBDIR_RELATIVE)
385 # Destinations of artifacts for target architectures
386 TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/rustlib/$(2)
387 TBIN$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/bin
388 TLIB$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/lib
390 # Preqrequisites for using the stageN compiler
392 HSREQ$(1)_H_$(3) = $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3))
395 $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
397 tmp/install-debugger-scripts$(1)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(3)).done
400 # Prerequisites for using the stageN compiler to build target artifacts
401 TSREQ$(1)_T_$(2)_H_$(3) = \
402 $$(HSREQ$(1)_H_$(3)) \
403 $$(foreach obj,$$(INSTALLED_OBJECTS_$(2)),\
404 $$(TLIB$(1)_T_$(2)_H_$(3))/$$(obj))
406 # Prerequisites for a working stageN compiler and libraries, for a specific
408 SREQ$(1)_T_$(2)_H_$(3) = \
409 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
410 $$(foreach dep,$$(TARGET_CRATES), \
411 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
412 tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(2)).done
414 # Prerequisites for a working stageN compiler and complete set of target
416 CSREQ$(1)_T_$(2)_H_$(3) = \
417 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
418 $$(HBIN$(1)_H_$(3))/rustdoc$$(X_$(3)) \
419 $$(foreach dep,$$(CRATES),$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep))
422 # Don't run the stage0 compiler under valgrind - that ship has sailed
423 CFG_VALGRIND_COMPILE$(1) =
425 CFG_VALGRIND_COMPILE$(1) = $$(CFG_VALGRIND_COMPILE)
428 # Add RUSTFLAGS_STAGEN values to the build command
429 EXTRAFLAGS_STAGE$(1) = $$(RUSTFLAGS_STAGE$(1))
431 CFGFLAG$(1)_T_$(2)_H_$(3) = stage$(1)
435 # Same macro/variables as above, but defined in a separate loop so it can use
436 # all the variables above for all archs. The RPATH_VAR setup sometimes needs to
437 # reach across triples to get things in order.
439 # Defines (with the standard $(1)_T_$(2)_H_$(3) suffix):
440 # * `LD_LIBRARY_PATH_ENV_NAME`: the name for the key to use in the OS
441 # environment to access or extend the lookup path for dynamic
442 # libraries. Note on Windows, that key is `$PATH`, and thus not
443 # only conflates programs with dynamic libraries, but also often
444 # contains spaces which confuse make.
445 # * `LD_LIBRARY_PATH_ENV_HOSTDIR`: the entry to add to lookup path for the host
446 # * `LD_LIBRARY_PATH_ENV_TARGETDIR`: the entry to add to lookup path for target
448 # Below that, HOST_RPATH_VAR and TARGET_RPATH_VAR are defined in terms of the
453 ifeq ($$(OSTYPE_$(3)),apple-darwin)
454 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := DYLD_LIBRARY_PATH
456 ifeq ($$(CFG_WINDOWSY_$(3)),1)
457 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := PATH
459 LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := LD_LIBRARY_PATH
463 LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3) := \
464 $$(CURDIR)/$$(HLIB$(1)_H_$(3))
465 LD_LIBRARY_PATH_ENV_TARGETDIR$(1)_T_$(2)_H_$(3) := \
466 $$(CURDIR)/$$(TLIB1_T_$(2)_H_$(CFG_BUILD))
468 HOST_RPATH_VAR$(1)_T_$(2)_H_$(3) := \
469 $$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))=$$(LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3)):$$$$$$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))
470 TARGET_RPATH_VAR$(1)_T_$(2)_H_$(3) := \
471 $$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))=$$(LD_LIBRARY_PATH_ENV_TARGETDIR$(1)_T_$(2)_H_$(3)):$$$$$$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))
473 RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(HOST_RPATH_VAR$(1)_T_$(2)_H_$(3))
475 # Pass --cfg stage0 only for the build->host part of stage0;
476 # if you're building a cross config, the host->* parts are
477 # effectively stage1, since it uses the just-built stage0.
479 # This logic is similar to how the LD_LIBRARY_PATH variable must
480 # change be slightly different when doing cross compilations.
481 # The build doesn't copy over all target libraries into
482 # a new directory, so we need to point the library path at
483 # the build directory where all the target libraries came
484 # from (the stage0 build host). Otherwise the relative rpaths
485 # inside of the rustc binary won't get resolved correctly.
487 ifneq ($(strip $(CFG_BUILD)),$(strip $(3)))
488 CFGFLAG$(1)_T_$(2)_H_$(3) = stage1
490 RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(TARGET_RPATH_VAR$(1)_T_$(2)_H_$(3))
494 STAGE$(1)_T_$(2)_H_$(3) := \
495 $$(Q)$$(RPATH_VAR$(1)_T_$(2)_H_$(3)) \
496 $$(call CFG_RUN_TARG_$(3),$(1), \
497 $$(CFG_VALGRIND_COMPILE$(1)) \
498 $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
499 --cfg $$(CFGFLAG$(1)_T_$(2)_H_$(3)) \
500 $$(CFG_RUSTC_FLAGS) $$(EXTRAFLAGS_STAGE$(1)) --target=$(2)) \
503 PERF_STAGE$(1)_T_$(2)_H_$(3) := \
504 $$(Q)$$(call CFG_RUN_TARG_$(3),$(1), \
506 $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
507 --cfg $$(CFGFLAG$(1)_T_$(2)_H_$(3)) \
508 $$(CFG_RUSTC_FLAGS) $$(EXTRAFLAGS_STAGE$(1)) --target=$(2)) \
513 $(foreach build,$(CFG_HOST), \
514 $(eval $(foreach target,$(CFG_TARGET), \
515 $(eval $(foreach stage,$(STAGES), \
516 $(eval $(call SREQ,$(stage),$(target),$(build))))))))
518 $(foreach build,$(CFG_HOST), \
519 $(eval $(foreach target,$(CFG_TARGET), \
520 $(eval $(foreach stage,$(STAGES), \
521 $(eval $(call SREQ_CMDS,$(stage),$(target),$(build))))))))
523 ######################################################################
526 # Builds a functional Rustc for the given host.
527 ######################################################################
529 define DEF_RUSTC_STAGE_TARGET
530 # $(1) == architecture
533 rustc-stage$(2)-H-$(1): \
534 $$(foreach target,$$(CFG_TARGET),$$(SREQ$(2)_T_$$(target)_H_$(1)))
538 $(foreach host,$(CFG_HOST), \
539 $(eval $(foreach stage,1 2 3, \
540 $(eval $(call DEF_RUSTC_STAGE_TARGET,$(host),$(stage))))))
542 rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
543 rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
544 rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
546 define DEF_RUSTC_TARGET
547 # $(1) == architecture
549 rustc-H-$(1): rustc-stage2-H-$(1)
552 $(foreach host,$(CFG_TARGET), \
553 $(eval $(call DEF_RUSTC_TARGET,$(host))))
555 rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
556 rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
557 rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
558 rustc: rustc-H-$(CFG_BUILD)
560 rustc-H-all: $(foreach host,$(CFG_HOST),rustc-H-$(host))
562 ######################################################################
564 ######################################################################
569 ifneq ($$(findstring $(1),$$(CFG_HOST)),)
571 all-target-$(1)-host-$(2): $$(CSREQ2_T_$(1)_H_$(2))
573 # This is a target only
574 all-target-$(1)-host-$(2): $$(SREQ2_T_$(1)_H_$(2))
578 $(foreach target,$(CFG_TARGET), \
579 $(foreach host,$(CFG_HOST), \
580 $(eval $(call ALL_TARGET_N,$(target),$(host)))))
582 ALL_TARGET_RULES = $(foreach target,$(CFG_TARGET), \
583 $(foreach host,$(CFG_HOST), \
584 all-target-$(target)-host-$(host)))
586 all: $(ALL_TARGET_RULES) $(GENERATED) docs
588 ######################################################################
589 # Build system documentation
590 ######################################################################
592 # $(1) is the name of the doc <section> in Makefile.in
593 # pick everything between tags | remove first line | remove last line
594 # | remove extra (?) line | strip leading `#` from lines
595 SHOW_DOCS = $(Q)awk '/<$(1)>/,/<\/$(1)>/' $(S)/Makefile.in | sed '1d' | sed '$$d' | sed 's/^\# \?//'
598 $(call SHOW_DOCS,help)
601 $(call SHOW_DOCS,tips)
604 $(call SHOW_DOCS,nitty-gritty)