Log heap profiler samples to event log
[ghc.git] / mk / config.mk.in
1 # -*-makefile-*-
2 # @configure_input@
3 #
4 ################################################################################
5 #
6 # config.mk.in
7 #
8 # This file supplies defaults for many tweakable build configuration
9 # options. Some of the defaults are filled in by the autoconf-generated
10 # configure script.
11 #
12 # DO NOT EDIT THIS FILE!
13 #
14 # - config.mk is auto-generated from config.mk.in by configure.
15 # If you edit config.mk your changes will be spammed.
16 #
17 # - Settings in this file may be overriden by giving replacement
18 # definitions in build.mk. See build.mk.sample for a good
19 # starting point for a build.mk file.
20 #
21 # If you don't have a build.mk file then you get defaults for everything.
22 # The defaults should provide a reasonable vanilla build.
23
24 # TOP: the top of the fptools hierarchy, absolute path.
25 # On Windows this is a c:/foo/bar style path.
26 TOP = @hardtop@
27
28 include $(TOP)/mk/project.mk
29
30 # By default, be verbose
31 V = 1
32
33 ################################################################################
34 #
35 # Global configuration options
36 #
37 ################################################################################
38
39 NO_INCLUDE_DEPS = NO
40 NO_INCLUDE_PKGDATA = NO
41
42 ################################################################################
43 #
44 # Variables that control how the compiler itself is built
45 #
46 ################################################################################
47
48 # The compiler used to build GHC is $(GHC). To change the actual compiler
49 # used, re-configure with --with-ghc=<path-to-ghc>.
50
51 # Extra option flags to pass to the compiler that compiles the compiler
52 # (Ones that are essential are wired into compiler/Makefile)
53 # Typical options to use here:
54 #
55 # -DDEBUG include debugging code and assertions (will make the
56 # compiler slower and produce debugging output, but useful
57 # for development)
58 #
59 # -dcore-lint check the types after every pass of the compiler;
60 # a pretty strong internal check of the compiler being
61 # used to compile GHC. Useful when bootstrapping.
62 GhcHcOpts=-Rghc-timing
63
64 # Extra options added to specific stages of the compiler bootstrap.
65 # These are placed later on the command line, and may therefore
66 # override options from $(GhcHcOpts).
67 #
68 # See Note [Stage number in build variables].
69 GhcStage1HcOpts=
70 GhcStage2HcOpts=-O2
71 GhcStage3HcOpts=-O2
72
73 # Disable -O2 optimization. Otherwise amount of generated C code
74 # makes things very slow to compile (~5 minutes on core-i7 for 'compiler/hsSyn/HsExpr.lhs')
75 # and sometimes not compile at all (powerpc64 overflows something
76 # on 'compiler/hsSyn/HsExpr.lhs').
77 ifeq "$(GhcUnregisterised)" "YES"
78 GhcStage1HcOpts=
79 GhcStage2HcOpts=
80 GhcStage3HcOpts=
81 endif
82
83 # Note [Stage number in build variables].
84 #
85 # There are (unfortunately) two different naming schemes for build variables
86 # specific to a certain stage.
87 #
88 # * GhcStage1HcOpts/GhcStage2HcOpts/GhcStage3HcOpts:
89 #
90 # The stage number refers to the compiler stage being built (ghc library
91 # and executable).
92 #
93 # * SRC_HC_OPTS_STAGE$4 and SRC_HC_WARNING_OPTS_STAGE$4:
94 #
95 # The stage number refers to the compiler stage the options are passed to.
96
97 GhcDebugged=NO
98 GhcDynamic=NO
99
100 # GhcProfiled=YES means compile a profiled stage-2 compiler
101 GhcProfiled=NO
102
103 ifeq "$(findstring $(TargetOS_CPP),linux freebsd dragonfly openbsd netbsd solaris2 kfreebsdgnu haiku linux-android)" ""
104 TargetElf = NO
105 else
106 TargetElf = YES
107 endif
108
109 # Some platforms don't support shared libraries
110 NoSharedLibsPlatformList = \
111 powerpc-ibm-aix \
112 x86_64-unknown-mingw32 \
113 i386-unknown-mingw32
114
115 ifeq "$(SOLARIS_BROKEN_SHLD)" "YES"
116 NoSharedLibsPlatformList += i386-unknown-solaris2
117 endif
118
119 PlatformSupportsSharedLibs = $(if $(filter $(TARGETPLATFORM),\
120 $(NoSharedLibsPlatformList)),NO,YES)
121
122 # DYNAMIC_BY_DEFAULT says whether this compiler will default to
123 # building dynamic executables, i.e. -dynamic is on. We do this for
124 # most platforms because it lets us use the system dynamic linker
125 # instead of our own linker for GHCi.
126 #
127 # Currently this isn't possible on Windows, and we have not yet enabled
128 # it on i386 while we consider the performance implications.
129 #
130 ifeq "$(TargetOS_CPP)" "mingw32"
131 DYNAMIC_BY_DEFAULT = NO
132 else ifeq "$(TargetArch_CPP)" "i386"
133 DYNAMIC_BY_DEFAULT = NO
134 else
135 DYNAMIC_BY_DEFAULT = YES
136 endif
137
138 # For now, we unconditionally disable dynamic-by-default, as the
139 # cabal-install's that are in the wild don't handle it properly.
140 DYNAMIC_BY_DEFAULT = NO
141
142 # If building both v and dyn ways, then use -dynamic-too to build them.
143 # This makes the build faster.
144 DYNAMIC_TOO = YES
145
146 # Use the dynamic way when building programs in the GHC tree. In
147 # particular, this means that GHCi will use DLLs rather than loading
148 # object files directly.
149 ifeq "$(TargetOS_CPP)" "mingw32"
150 # This doesn't work on Windows yet
151 DYNAMIC_GHC_PROGRAMS = NO
152 DYNAMIC_TOO=NO
153 else ifeq "$(PlatformSupportsSharedLibs)" "NO"
154 DYNAMIC_GHC_PROGRAMS = NO
155 else
156 DYNAMIC_GHC_PROGRAMS = YES
157 endif
158
159 # Build a compiler that will build *unregisterised* libraries and
160 # binaries by default. Unregisterised code is supposed to compile and
161 # run without any support for architecture-specific assembly mangling,
162 # register assignment or tail-calls, and is therefore a good way to get
163 # started when porting GHC to new architectures.
164 #
165 # NOTE: the stage1 compiler will be a registerised binary (assuming
166 # the compiler you build with is generating registerised binaries), but
167 # the stage2 compiler will be an unregisterised binary.
168 #
169 GhcUnregisterised=@Unregisterised@
170
171 # Build a compiler with a native code generator backend
172 # (as well as a C backend)
173 #
174 # Target platforms supported:
175 # i386, powerpc, powerpc64, sparc
176 # IOS is not supported
177 ArchSupportsNCG=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 powerpc powerpc64 powerpc64le sparc)))
178 OsSupportsNCG=$(strip $(patsubst $(TargetOS_CPP), YES, $(patsubst ios,,$(TargetOS_CPP))))
179
180 GhcWithNativeCodeGen := $(strip\
181 $(if $(filter YESYESNO,\
182 $(OsSupportsNCG)$(ArchSupportsNCG)$(GhcUnregisterised)),YES,NO))
183
184 HaveLibDL = @HaveLibDL@
185
186 # ArchSupportsSMP should be set iff there is support for that arch in
187 # includes/stg/SMP.h
188 ifeq "$(TargetArch_CPP)" "arm"
189 # We don't support load/store barriers pre-ARMv7. See #10433.
190 ArchSupportsSMP="$(if $(filter $(ARM_ISA),ARMv5 ARMv6),NO,YES)"
191 else
192 ArchSupportsSMP=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 sparc powerpc powerpc64 powerpc64le aarch64)))
193 endif
194
195 # The THREADED_RTS requites `BaseReg` to be in a register and the
196 # `GhcUnregisterised` mode doesn't allow that.
197 GhcWithSMP := $(strip $(if $(filter YESNO, $(ArchSupportsSMP)$(GhcUnregisterised)),YES,NO))
198
199 # Whether to include GHCi in the compiler. Depends on whether the RTS linker
200 # has support for this OS/ARCH combination.
201
202 OsSupportsGHCi=$(strip $(patsubst $(TargetOS_CPP), YES, $(findstring $(TargetOS_CPP), mingw32 linux solaris2 freebsd dragonfly netbsd openbsd darwin kfreebsdgnu)))
203 ArchSupportsGHCi=$(strip $(patsubst $(TargetArch_CPP), YES, $(findstring $(TargetArch_CPP), i386 x86_64 powerpc powerpc64 powerpc64le sparc sparc64 arm aarch64)))
204
205 ifeq "$(OsSupportsGHCi)$(ArchSupportsGHCi)" "YESYES"
206 GhcWithInterpreter=YES
207 else
208 GhcWithInterpreter=$(if $(findstring YES,$(DYNAMIC_GHC_PROGRAMS)),YES,NO)
209 endif
210
211 # GhcEnableTablesNextToCode tells us whether the target architecture
212 # supports placing info tables directly before the entry code
213 # (see TABLES_NEXT_TO_CODE in the RTS). Whether we actually compile for
214 # TABLES_NEXT_TO_CODE depends on whether we're building unregisterised
215 # code or not, which may be decided by options to the compiler later.
216 ifneq "$(findstring $(TargetArch_CPP)X, ia64X powerpc64X powerpc64leX)" ""
217 GhcEnableTablesNextToCode=NO
218 else
219 GhcEnableTablesNextToCode=YES
220 endif
221
222 # Whether to use libffi for adjustors (foreign import "wrapper") or
223 # not. If we have built-in support (rts/Adjustor.c) then we use that,
224 # otherwise we fall back on libffi, which is slightly slower.
225 ArchHasAdjustorSupport = $(if $(findstring $(TargetArch_CPP),i386 x86_64),YES,NO)
226 ifeq "$(ArchHasAdjustorSupport)" "YES"
227 UseLibFFIForAdjustors=NO
228 else
229 UseLibFFIForAdjustors=YES
230 endif
231
232 # On Windows we normally want to make a relocatable bindist, to we
233 # ignore flags like libdir
234 ifeq "$(Windows_Host)" "YES"
235 RelocatableBuild = YES
236 else
237 RelocatableBuild = NO
238 endif
239
240 # needs to be after $(RelocatableBuild) is set above
241 include $(TOP)/mk/install.mk
242
243 # When building bindists we set this to yes so that the binaries are as
244 # portable as possible.
245 BeConservative = NO
246
247 ExtraMakefileSanityChecks = NO
248
249 #------------------------------------------------------------------------------
250 # Options for Libraries
251
252 # Which directory (in libraries/) contains the integer library?
253 INTEGER_LIBRARY=integer-gmp
254
255 # We build the libraries at least the "vanilla" way (way "v")
256 # Technically we don't need the v way if DYNAMIC_GHC_PROGRAMS is YES,
257 # but with -dynamic-too it's cheap, and makes life easier.
258 GhcLibWays = v
259
260 # In addition to the normal sequential way, the default is to also build
261 # profiled prelude libraries
262 # $(if $(filter ...)) allows controlling this expression from build.mk.
263 GhcLibWays += $(if $(filter $(BUILD_PROF_LIBS),NO),,p)
264
265 # Backward compatibility: although it would be cleaner to test for
266 # PlatformSupportsSharedLibs, or perhaps a new variable BUILD_SHARED_LIBS,
267 # some users currently expect that DYNAMIC_GHC_PROGRAMS=NO in build.mk implies
268 # that dyn is not added to GhcLibWays.
269 GhcLibWays += $(if $(filter $(DYNAMIC_GHC_PROGRAMS),NO),,dyn)
270
271 # Handy way to test whether we're building shared libs or not.
272 BuildSharedLibs=$(strip $(if $(findstring dyn,$(GhcLibWays)),YES,NO))
273
274 # In addition, the RTS is built in some further variations. Ways that
275 # make sense here:
276 #
277 # thr : threaded
278 # thr_p : threaded + profiled + eventlog
279 # debug : debugging + eventlog
280 # thr_debug : debugging + threaded, + eventlog
281 # l : eventlog
282 # p : profiled + eventlog
283 # thr_l : threaded + eventlog
284 #
285 # Note how there are a few cases which are handled specially (in packageHsLibs)
286 # to reduce the number of distinct ways,
287 #
288 # debug implies eventlog
289 # profiled implies eventlog
290 #
291 # This means, for instance, that there is no debug_l way.
292 #
293 GhcRTSWays=l
294
295 # Usually want the debug version
296 GhcRTSWays += debug
297
298 # We always have the threaded versions, but note that SMP support may be disabled
299 # (see GhcWithSMP).
300 GhcRTSWays += thr thr_debug thr_l
301 GhcRTSWays += $(if $(findstring p, $(GhcLibWays)),thr_p,)
302 GhcRTSWays += $(if $(findstring dyn, $(GhcLibWays)),dyn debug_dyn thr_dyn thr_debug_dyn l_dyn thr_l_dyn,)
303
304 # We can only build GHCi threaded if we have a threaded RTS:
305 GhcThreaded = $(if $(findstring thr,$(GhcRTSWays)),YES,NO)
306
307 # Option flags to pass to GHC when it's compiling modules in
308 # fptools/libraries. Typically these are things like -O or
309 # -dcore-lint or -H32m. The ones that are *essential* are wired into
310 # the build system.
311 #
312 # -O(2) is pretty desirable, otherwise no inlining of prelude
313 # things (incl "+") happens when compiling with this compiler
314
315 GhcLibHcOpts=-O2
316
317 # Strip local symbols from libraries? This can make the libraries smaller,
318 # but makes debugging somewhat more difficult. Doesn't work with all ld's.
319 #
320 StripLibraries=NO
321
322 # ----------------------------------------------------------------------------
323 # Object-file splitting
324 #
325 # Set SplitObjs=YES or NO in your build.mk
326 #
327 # Don't use -split-objs in in GhcLibHcOpts, because the build
328 # system needs to do other special magic if you are
329 # doing object-file splitting
330
331 ArchSupportsSplitObjs=$(strip $(if $(filter $(TargetArch_CPP),i386 x86_64 powerpc sparc),YES,NO))
332 OsSupportsSplitObjs=$(strip $(if $(filter $(TargetOS_CPP),mingw32 linux darwin solaris2 freebsd dragonfly netbsd openbsd),YES,NO))
333 SplitObjsBroken = @SplitObjsBroken@
334
335 SupportsSplitObjs := $(strip \
336 $(if $(and $(filter YES,$(ArchSupportsSplitObjs)),\
337 $(filter YES,$(OsSupportsSplitObjs)),\
338 $(filter NO,$(SplitObjsBroken)),\
339 $(filter NO,$(GhcUnregisterised))),\
340 YES,NO))
341
342 # By default, enable SplitObjs for the libraries if this build supports it
343 SplitObjs=$(SupportsSplitObjs)
344
345 # ----------------------------------------------------------------------------
346 # Section splitting
347 #
348 # Similar to -ffunction-sections -fdata-sections in GCC. Provides space saving
349 # like SplitObjs, but doesn't require post-processing and splitting of object
350 # files.
351 #
352 # Set SplitSections=YES in your build.mk to enable.
353
354 SplitSections=NO
355
356 # ----------------------------------------------------------------------------
357
358 # There are a number of things which technically depend on GHC (e.g. if
359 # ghc changes then Haskell files may be compiled differently, or Cabal
360 # packages may be configured differently). By default we therefore
361 # have dependencies on the compiler executable.
362
363 # However, in practice, having a dependency on GHC is just a pain: We
364 # normally don't want to spend time recompiling other things while
365 # we're working on the compiler, and even if we did, GHC will normally
366 # decide compilation isn't needed anyway. So by setting LAX_DEPENDENCIES
367 # to YES you can turn these dependencies into order-only dependencies,
368 # i.e. GHC must exist, but if it's newer than other targets then
369 # rebuilding is not necessary.
370
371 LAX_DEPENDENCIES = NO
372
373 # ----------------------------------------------------------------------------
374 # Options for GHC's RTS
375
376 # Build an optimised RTS. Remember that we need to turn on
377 # optimisation both for C code (-optc-O2) and .cmm code (-O2). For
378 # the debugging RTS flavour, rts/ghc.mk overrides these to turn off
379 # optimisation.
380 GhcRtsHcOpts=-O2
381 GhcRtsCcOpts=-O2 -fomit-frame-pointer -g
382
383 # Configuration for libffi
384 UseSystemLibFFI=@UseSystemLibFFI@
385 # Flags to go into package.conf for rts
386 FFILibDir=@FFILibDir@
387 FFIIncludeDir=@FFIIncludeDir@
388
389 # GHC needs arch-specific tweak at least in
390 # rts/Libdw.c:set_initial_registers()
391 GhcRtsWithLibdw=$(strip $(if $(filter $(TargetArch_CPP),i386 x86_64),@UseLibdw@,NO))
392
393 ################################################################################
394 #
395 # Paths (see paths.mk)
396 #
397 ################################################################################
398
399 # Directory used by GHC (and possibly other tools) for storing
400 # temporary files. If your TMPDIR isn't big enough, either override
401 # this in build.mk or set your environment variable "TMPDIR" to point
402 # to somewhere with more space. (TMPDIR=. is a good choice).
403
404 # DEFAULT_TMPDIR isn't called TMPDIR because GNU make tends to
405 # override an environment variable with the value of the make variable
406 # of the same name (if it exists) when executing sub-processes, so
407 # setting the TMPDIR env var would have no effect in the build tree.
408
409 DEFAULT_TMPDIR = /tmp
410 ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
411 DEFAULT_TMPDIR = /C/TEMP
412 endif
413
414 BIN_DIST_NAME = ghc-$(ProjectVersion)
415 BIN_DIST_PREP_DIR = bindistprep/$(BIN_DIST_NAME)
416 BIN_DIST_PREP_TAR = bindistprep/$(BIN_DIST_NAME)-$(TARGETPLATFORM).tar
417 BIN_DIST_PREP_TAR_COMP = $(BIN_DIST_PREP_TAR).$(TAR_COMP_EXT)
418 BIN_DIST_TAR_COMP = $(BIN_DIST_NAME)-$(TARGETPLATFORM).tar.$(TAR_COMP_EXT)
419
420 # -----------------------------------------------------------------------------
421 # Utilities programs: flags
422
423 # If you want to give any standard flags to pretty much any utility
424 # (see utils.mk for a complete list), by adding a line here
425 #
426 # SRC_P_OPTS += ...
427 #
428 # where P is the utility. For example, to add -O to all Haskell
429 # compilations,
430 #
431 # SRC_HC_OPTS += -O
432
433
434 # SRC_HC_OPTS includes flags to be added to *every* Haskell
435 # compilation. Setting SRC_HC_OPTS is a good way to set the default
436 # optimisation level (-O) and heap size (-H<size>).
437 #
438 # SRC_HC_OPTS is *not* for adding flags that are required to make your
439 # build work. Examples:
440 #
441 # - instead of using -pgmc/-pgma-/-pgml, use the --with-gcc option to configure
442 #
443 # - if you need -optc, -opta, or -optl flags, the CONF_CC_* and CONF_LD_*
444 # variables are more appropriate (set via configure)
445 #
446 # Note that SRC_HC_OPTS are added to every Haskell compilation,
447 # including when using the bootstrapping compiler (stage 0), So don't
448 # put options here that are only supported by very recent GHCs.
449 #
450 SRC_HC_OPTS += -H32m -O
451
452
453 # See Note [Stage number in build variables].
454 SRC_HC_OPTS_STAGE0 =
455 SRC_HC_OPTS_STAGE1 =
456 SRC_HC_OPTS_STAGE2 =
457
458 # Warning suppression flags. See mk/warnings.mk.
459 SRC_CC_WARNING_OPTS =
460 SRC_HC_WARNING_OPTS =
461
462 # See Note [Stage number in build variables].
463 SRC_HC_WARNING_OPTS_STAGE0 =
464 SRC_HC_WARNING_OPTS_STAGE1 =
465 SRC_HC_WARNING_OPTS_STAGE2 =
466
467 # -----------------------------------------------------------------------------
468 # Names of programs in the GHC tree
469
470 MKDIRHIER = $(INPLACE_BIN)/mkdirhier
471
472 GENERATED_FILE = chmod a-w
473 EXECUTABLE_FILE = chmod +x
474
475 #-----------------------------------------------------------------------------
476 # Installed GHC
477
478 # $(GHC) points to installed version of the compiler.
479 #
480 # NOTE: Don't override $(GHC) in build.mk, use configure --with-ghc instead
481 # (because the version numbers have to be calculated).
482
483 GHC := @WithGhc@
484 # If we have a make dependency on c:/ghc/ghc, and the file is actually
485 # called c:/ghc/ghc.exe, then make will think that ghc doesn't exist
486 # and that it doesn't know how to create it.
487 ifneq "$(wildcard $(GHC).exe)" ""
488 GHC := $(GHC).exe
489 endif
490
491 GHC_STAGE0 = $(GHC)
492 GHC_STAGE1 = $(ghc-stage1_INPLACE)
493 GHC_STAGE2 = $(ghc-stage2_INPLACE)
494 GHC_STAGE3 = $(ghc-stage3_INPLACE)
495
496 BOOTSTRAPPING_CONF = libraries/bootstrapping.conf
497
498 INPLACE_PACKAGE_CONF = $(INPLACE_LIB)/package.conf.d
499
500 GhcVersion = @GhcVersion@
501 GhcPatchLevel = @GhcPatchLevel@
502 GhcMajVersion = @GhcMajVersion@
503 GhcMinVersion = @GhcMinVersion@
504
505 # Canonicalised ghc version number, used for easy (integer) version
506 # comparisons. We must expand $(GhcMinVersion) to two digits by
507 # adding a leading zero if necessary:
508 ifneq "$(findstring $(GhcMinVersion), 0 1 2 3 4 5 6 7 8 9)" ""
509 GhcCanonVersion = $(GhcMajVersion)0$(GhcMinVersion)
510 else
511 GhcCanonVersion = $(GhcMajVersion)$(GhcMinVersion)
512 endif
513
514 GHC_PACKAGE_DB_FLAG = @GHC_PACKAGE_DB_FLAG@
515
516 SUPPORTS_THIS_UNIT_ID = @SUPPORTS_THIS_UNIT_ID@
517
518 #-----------------------------------------------------------------------------
519 # C compiler
520 #
521 # NB. Don't override $(CC) using build.mk, re-configure using
522 # the flag CC=<blah> instead. The reason is that the configure script
523 # needs to know which gcc you're using in order to perform its tests.
524
525 GccVersion = @GccVersion@
526 ifeq "$(phase)" "0"
527 CrossCompilePrefix =
528 else
529 CrossCompilePrefix = @CrossCompilePrefix@
530 endif
531 # TargetPlatformFull retains the string passed to configure so we have it in
532 # the necessary format to pass to libffi's configure.
533 TargetPlatformFull = @TargetPlatformFull@
534 GccLT34 = @GccLT34@
535 GccLT44 = @GccLT44@
536 GccLT46 = @GccLT46@
537 GccIsClang = @GccIsClang@
538
539 CC = @CC@
540 CC_STAGE0 = @CC_STAGE0@
541 CC_STAGE1 = $(CC)
542 CC_STAGE2 = $(CC)
543 CC_STAGE3 = $(CC)
544
545 AS = @CC@
546 AS_STAGE0 = @CC_STAGE0@
547 AS_STAGE1 = $(AS)
548 AS_STAGE2 = $(AS)
549 AS_STAGE3 = $(AS)
550
551 # why no LD=@LD@ ?
552 LD_STAGE0 = @LD_STAGE0@
553 LD_STAGE1 = $(LD)
554 LD_STAGE2 = $(LD)
555 LD_STAGE3 = $(LD)
556
557 # Cross-compiling options
558 # See Note [CrossCompiling vs Stage1Only]
559 CrossCompiling = @CrossCompiling@
560
561 # Change this to YES if you're building a cross-compiler and don't
562 # want to build stage 2.
563 # See Note [CrossCompiling vs Stage1Only]
564 # See Note [Stage1Only vs stage=1]
565 Stage1Only = NO
566
567 # Install stage 2 by default, or stage 1 in the cross compiler
568 # case. Can be changed to 3
569 INSTALL_GHC_STAGE= $(if $(filter YES,$(Stage1Only)),1,2)
570
571 # Note [CrossCompiling vs Stage1Only]
572 #
573 # There are 4 possible settings:
574 #
575 # 1 CrossCompiling=NO Stage1Only=NO
576 # The default.
577 #
578 # 2 CrossCompiling=NO Stage1Only=YES
579 # Don't build ghc-stage2. See Note [Stage1Only vs stage=1].
580 #
581 # 3 CrossCompiling=YES Stage1Only=YES
582 # Building a cross-compiler (ghc-stage1). See [1] and
583 # Note [Stage1Only vs stage=1].
584 #
585 # 4 CrossCompiling=YES Stage1Only=NO
586 # Cross-compiling GHC itself. See [1].
587 #
588 # [1] https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling
589
590 # Note [Stage1Only vs stage=1]
591 #
592 # Stage1Only=YES means:
593 # - don't build ghc-stage2 (the executable)
594 # - don't build utils that rely on ghc-stage2
595 # See Note [No stage2 packages when CrossCompiling or Stage1Only] in
596 # ./ghc.mk.
597 # - install ghc-stage1 instead of ghc-stage2
598 # - install the ghc-pkg that was built with the stage0 compiler
599 # - (*do* still build compiler/stage2 (i.e. the ghc library))
600 # - (*do* still build all other libraries)
601 #
602 # stage=1 means:
603 # - don't build compiler/stage2 (i.e. the ghc library)
604 # - don't build ghc-stage2 (the executable)
605 # Note: these are the only two things it does. If you want to exclude more
606 # stuff, combine it with Stage1Only=YES, or run make in the ghc or compiler
607 # directory.
608 #
609 # running make in the ghc or compiler directory means:
610 # - don't build any packages in the libraries/ directory, except the ones
611 # listed in PACKAGES_STAGE0 (i.e. the boot libraries)
612 #
613 # You may wonder why Stage1Only=YES still builds compiler/stage2. Quoting
614 # simonmar in #7639:
615 #
616 # "strictly speaking building compiler/stage2 is correct, because it is
617 # the ghc package that can be used with [ghc-stage1]. If you don't
618 # want to build it, then setting stage=1 in your mk/build.mk should
619 # disable it."
620
621 # C compiler and linker flags from configure (e.g. -m<blah> to select
622 # correct C compiler backend). The stage number is the stage of GHC
623 # that is being used to compile with.
624 CONF_CC_OPTS_STAGE0 = @CONF_CC_OPTS_STAGE0@
625 CONF_CC_OPTS_STAGE1 = @CONF_CC_OPTS_STAGE1@
626 CONF_CC_OPTS_STAGE2 = @CONF_CC_OPTS_STAGE2@
627 CONF_GCC_LINKER_OPTS_STAGE0 = @CONF_GCC_LINKER_OPTS_STAGE0@
628 CONF_GCC_LINKER_OPTS_STAGE1 = @CONF_GCC_LINKER_OPTS_STAGE1@
629 CONF_GCC_LINKER_OPTS_STAGE2 = @CONF_GCC_LINKER_OPTS_STAGE2@
630 CONF_LD_LINKER_OPTS_STAGE0 = @CONF_LD_LINKER_OPTS_STAGE0@
631 CONF_LD_LINKER_OPTS_STAGE1 = @CONF_LD_LINKER_OPTS_STAGE1@
632 CONF_LD_LINKER_OPTS_STAGE2 = @CONF_LD_LINKER_OPTS_STAGE2@
633 CONF_CPP_OPTS_STAGE0 = @CONF_CPP_OPTS_STAGE0@
634 CONF_CPP_OPTS_STAGE1 = @CONF_CPP_OPTS_STAGE1@
635 CONF_CPP_OPTS_STAGE2 = @CONF_CPP_OPTS_STAGE2@
636
637 # The .hsc files aren't currently safe for cross-compilation on Windows:
638 # libraries\haskeline\.\System\Console\Haskeline\Backend\Win32.hsc:160
639 # directive "let" is not safe for cross-compilation
640 ifneq "$(Windows_Host)" "YES"
641 SRC_HSC2HS_OPTS += --cross-safe
642 endif
643 SRC_HSC2HS_OPTS += $(foreach d,$(GMP_INCLUDE_DIRS),-I$(d))
644
645 define set_stage_HSC2HS_OPTS
646 # $1 = stage
647 SRC_HSC2HS_OPTS_STAGE$1 += $$(addprefix --cflag=,$$(filter-out -O,$$(SRC_CC_OPTS) $$(CONF_CC_OPTS_STAGE$1)))
648 SRC_HSC2HS_OPTS_STAGE$1 += $$(addprefix --cflag=,$$(CONF_CPP_OPTS_STAGE$1))
649 SRC_HSC2HS_OPTS_STAGE$1 += $$(addprefix --lflag=,$$(CONF_GCC_LINKER_OPTS_STAGE$1))
650 endef
651 $(eval $(call set_stage_HSC2HS_OPTS,0))
652 $(eval $(call set_stage_HSC2HS_OPTS,1))
653 $(eval $(call set_stage_HSC2HS_OPTS,2))
654 ifeq "$(CrossCompiling)" "YES"
655 SRC_HSC2HS_OPTS_STAGE1 += --cross-compile
656 SRC_HSC2HS_OPTS_STAGE2 += --cross-compile
657 endif
658 SRC_HSC2HS_OPTS_STAGE0 += --cflag=-D$(HostArch_CPP)_HOST_ARCH --cflag=-D$(HostOS_CPP)_HOST_OS
659 SRC_HSC2HS_OPTS_STAGE1 += --cflag=-D$(TargetArch_CPP)_HOST_ARCH --cflag=-D$(TargetOS_CPP)_HOST_OS
660 SRC_HSC2HS_OPTS_STAGE2 += --cflag=-D$(TargetArch_CPP)_HOST_ARCH --cflag=-D$(TargetOS_CPP)_HOST_OS
661
662 ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
663 WINDRES = $(INPLACE_MINGW)/bin/windres
664 else ifeq "$(TARGETPLATFORM)" "x86_64-unknown-mingw32"
665 WINDRES = $(INPLACE_MINGW)/bin/windres
666 endif
667
668 #-----------------------------------------------------------------------------
669 # Mingwex Library
670 #
671 HaveLibMingwEx = @HaveLibMingwEx@
672 ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
673 DLLTOOL = inplace/mingw/bin/dlltool.exe
674 else ifeq "$(TARGETPLATFORM)" "x86_64-unknown-mingw32"
675 DLLTOOL = inplace/mingw/bin/dlltool.exe
676 endif
677
678 #-----------------------------------------------------------------------------
679 # Other standard (ha!) Unix utilities
680
681 AR = @ArCmd@
682 AR_OPTS = @ArArgs@
683 ArSupportsAtFile = @ArSupportsAtFile@
684
685 AR_STAGE0 = @AR_STAGE0@
686 AR_STAGE1 = $(AR)
687 AR_STAGE2 = $(AR)
688 AR_STAGE3 = $(AR)
689 AR_OPTS_STAGE0 = @AR_OPTS_STAGE0@
690 AR_OPTS_STAGE1 = $(AR_OPTS)
691 AR_OPTS_STAGE2 = $(AR_OPTS)
692 AR_OPTS_STAGE3 = $(AR_OPTS)
693 EXTRA_AR_ARGS_STAGE0 = $(EXTRA_AR_ARGS)
694 EXTRA_AR_ARGS_STAGE1 = $(EXTRA_AR_ARGS)
695 EXTRA_AR_ARGS_STAGE2 = $(EXTRA_AR_ARGS)
696 EXTRA_AR_ARGS_STAGE3 = $(EXTRA_AR_ARGS)
697 ArSupportsAtFile_STAGE0 = @ArSupportsAtFile_STAGE0@
698 ArSupportsAtFile_STAGE1 = $(ArSupportsAtFile)
699 ArSupportsAtFile_STAGE2 = $(ArSupportsAtFile)
700 ArSupportsAtFile_STAGE3 = $(ArSupportsAtFile)
701
702 CONTEXT_DIFF = @ContextDiffCmd@
703 CP = cp
704
705 # It's not easy to separate the CPP program from its flags, as
706 # AC_PROG_CPP defines CPP as "/usr/bin/gcc -E"
707 CPP = @CPP@ @CPPFLAGS@
708 HS_CPP = @HaskellCPPCmd@ @HaskellCPPArgs@
709
710 FIND = @FindCmd@
711
712 #
713 # Sigh - the autoconf macro for INSTALL will subst a relative path to the fallback
714 # install-sh script (if chosen). This not terribly useful to us, so we convert
715 # it into an abs. path.
716 #
717 INSTALL = @INSTALL@
718 INSTALL := $(subst .././install-sh,$(TOP)/install-sh,$(INSTALL))
719
720 LN_S = @LN_S@
721 MV = mv
722 PERL = @PerlCmd@
723 PIC = pic
724 RANLIB_CMD = @RANLIB_CMD@
725 REAL_RANLIB_CMD = @REAL_RANLIB_CMD@
726 SED = @SedCmd@
727 SHELL = @SHELL@
728
729 HaveDtrace = @HaveDtrace@
730 USE_DTRACE = $(HaveDtrace)
731 DTRACE = @DtraceCmd@
732
733 LD = @LdCmd@
734 NM = @NmCmd@
735 AR = @ArCmd@
736 OBJDUMP = @ObjdumpCmd@
737
738 LLC = @LlcCmd@
739 OPT = @OptCmd@
740
741 # GNU ld supports input via a linker script, which is useful to avoid
742 # overflowing command-line length limits.
743 LdIsGNULd = @LdIsGNULd@
744
745 # Set to YES if ld has the --build-id flag. Sometimes we need to
746 # disable it with --build-id=none.
747 LdHasBuildId = @LdHasBuildId@
748
749 # Set to YES if ld has the --no_compact_unwind flag. See #5019
750 # and compiler/main/DriverPipeline.hs.
751 LdHasNoCompactUnwind = @LdHasNoCompactUnwind@
752
753 # On MSYS, building with SplitObjs=YES fails with
754 # ar: Bad file number
755 # see #3201. We need to specify a smaller max command-line size
756 # to work around it. 32767 doesn't work; 30000 does, but says
757 # xargs: value for -s option should be < 28153
758 # so we now use 20000 to be comfortably below this bound
759 XARGS = xargs
760 ifeq "$(Windows_Host)" "YES"
761 XARGS_OPTS = -s 20000
762 endif
763
764 ifeq "$(TARGETPLATFORM)" "x86_64-unknown-mingw32"
765 STRIP_CMD = $(TOP)/inplace/mingw/bin/strip.exe
766 else ifeq "$(TARGETPLATFORM)" "arm-unknown-linux"
767 # The Cortex A8 hardware apparently has a bug which ld.gold will check for;
768 # however in order to do so it must have unstripped executables lest we
769 # see warnings of the form (see #10376, #10464),
770 #
771 # /usr/bin/ld.gold: warning: cannot scan executable section 1 of ... for
772 # Cortex-A8 erratum because it has no mapping symbols.
773 #
774 # Consequently we disabling stripping by default on this architecture.
775 # The hack of using `:` to disable stripping is implemented by ghc-cabal.
776 STRIP_CMD = :
777 else
778 STRIP_CMD = strip
779 endif
780 PATCH_CMD = @PatchCmd@
781 TAR_CMD = @TarCmd@
782 BZIP2_CMD = bzip2
783 GZIP_CMD = gzip
784 XZ_CMD = xz
785
786 # xz is default compression
787 TAR_COMP ?= xz
788
789 # select compression command and .tar extension based on TAR_COMP value
790 ifeq "$(TAR_COMP)" "bzip2"
791 TAR_COMP_CMD = $(BZIP2_CMD)
792 TAR_COMP_EXT = bz2
793 else ifeq "$(TAR_COMP)" "gzip"
794 TAR_COMP_CMD = $(GZIP_CMD)
795 TAR_COMP_EXT = gz
796 else ifeq "$(TAR_COMP)" "xz"
797 TAR_COMP_CMD = $(XZ_CMD)
798 TAR_COMP_EXT = xz
799 else
800 $(error $$(TAR_COMP) set to unknown value "$(TAR_COMP)" (supported: "bzip2", "gzip", "xz"))
801 endif
802
803 ifeq "$(Windows_Host)" "YES"
804 TOUCH_CMD = $(utils/touchy_dist_INPLACE)
805 TOUCH_DEP = $(TOUCH_CMD)
806 else
807 TOUCH_CMD = touch
808 TOUCH_DEP =
809 endif
810
811 HSCOLOUR_CMD = @HSCOLOUR@
812
813 TIME_CMD = @TimeCmd@
814
815 #-----------------------------------------------------------------------------
816 # Sphinx stuff
817
818 SPHINXBUILD = @SPHINXBUILD@
819 BUILD_MAN = @BUILD_MAN@
820 BUILD_SPHINX_HTML = @BUILD_SPHINX_HTML@
821 BUILD_SPHINX_PDF = @BUILD_SPHINX_PDF@
822 SPHINXOPTS = -D latex_paper_size=letter
823 XELATEX = @XELATEX@
824
825 #-----------------------------------------------------------------------------
826 # FPtools support software
827
828 #
829 # ghc-pkg
830 #
831 GHC_PKG = @GhcPkgCmd@
832
833 #
834 # Happy
835 #
836 HAPPY = @HappyCmd@
837 HAPPY_VERSION = @HappyVersion@
838 #
839 # Options to pass to Happy when we're going to compile the output with GHC
840 #
841 SRC_HAPPY_OPTS = -agc --strict
842
843 #
844 # Alex
845 #
846 ALEX = @AlexCmd@
847 ALEX_VERSION = @AlexVersion@
848 Alex3 = @Alex3@
849 #
850 # Options to pass to Alex when we're going to compile the output with GHC
851 #
852 SRC_ALEX_OPTS = -g
853 ifeq "$(Alex3)" "YES"
854 # The compiler isn't using the Unicode support in Alex 3.0 yet, in fact we do our own
855 # Unicode handling, so diable Alex's.
856 compiler_ALEX_OPTS = --latin1
857 endif
858
859 # Should we build haddock docs?
860 HADDOCK_DOCS = YES
861 # And HsColour the sources?
862 ifeq "$(HSCOLOUR_CMD)" ""
863 HSCOLOUR_SRCS = NO
864 else
865 HSCOLOUR_SRCS = YES
866 endif
867
868 # Build and install DPH?
869 BUILD_DPH = NO
870 # Build and install the "extra" packages (see ./packages)?
871 BUILD_EXTRA_PKGS = NO
872
873 ################################################################################
874 #
875 # Library configure arguments
876 #
877 ################################################################################
878
879 CONFIGURE_ARGS = @CONFIGURE_ARGS@
880
881 ################################################################################
882 #
883 # To be passed to sub-builds
884 #
885 ################################################################################
886
887 ICONV_INCLUDE_DIRS = @ICONV_INCLUDE_DIRS@
888 ICONV_LIB_DIRS = @ICONV_LIB_DIRS@
889
890 GMP_INCLUDE_DIRS = @GMP_INCLUDE_DIRS@
891 GMP_LIB_DIRS = @GMP_LIB_DIRS@
892
893 CURSES_INCLUDE_DIRS = @CURSES_INCLUDE_DIRS@
894 CURSES_LIB_DIRS = @CURSES_LIB_DIRS@