summaryrefslogtreecommitdiff
blob: 9c432a044b6c9f493b17754645fe255864a8ef90 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

PYTHON_COMPAT=( python3_{6..9} )
inherit cmake llvm.org multilib-minimal pax-utils python-any-r1 \
	toolchain-funcs

DESCRIPTION="Low Level Virtual Machine"
HOMEPAGE="https://llvm.org/"
LLVM_COMPONENTS=( llvm )
llvm.org_set_globals

# Those are in lib/Targets, without explicit CMakeLists.txt mention
ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC VE )
# Keep in sync with CMakeLists.txt
ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430
	NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore
	"${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}" )
ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )

# Additional licenses:
# 1. OpenBSD regex: Henry Spencer's license ('rc' in Gentoo) + BSD.
# 2. xxhash: BSD.
# 3. MD5 code: public-domain.
# 4. ConvertUTF.h: TODO.

LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA BSD public-domain rc"
SLOT="$(ver_cut 1)"
KEYWORDS=""
IUSE="debug doc exegesis gold libedit +libffi ncurses test xar xml z3
	kernel_Darwin ${ALL_LLVM_TARGETS[*]}"
REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
RESTRICT="!test? ( test )"

RDEPEND="
	sys-libs/zlib:0=[${MULTILIB_USEDEP}]
	exegesis? ( dev-libs/libpfm:= )
	gold? (
		|| (
			>=sys-devel/binutils-2.31.1-r4:*[plugins]
			<sys-devel/binutils-2.31.1-r4:*[cxx]
		)
	)
	libedit? ( dev-libs/libedit:0=[${MULTILIB_USEDEP}] )
	libffi? ( >=dev-libs/libffi-3.0.13-r1:0=[${MULTILIB_USEDEP}] )
	ncurses? ( >=sys-libs/ncurses-5.9-r3:0=[${MULTILIB_USEDEP}] )
	xar? ( app-arch/xar )
	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
	z3? ( >=sci-mathematics/z3-4.7.1:0=[${MULTILIB_USEDEP}] )"
DEPEND="${RDEPEND}
	gold? ( sys-libs/binutils-libs )"
BDEPEND="
	dev-lang/perl
	>=dev-util/cmake-3.16
	sys-devel/gnuconfig
	kernel_Darwin? (
		<sys-libs/libcxx-$(ver_cut 1-3).9999
		>=sys-devel/binutils-apple-5.1
	)
	libffi? ( virtual/pkgconfig )
	$(python_gen_any_dep '
		dev-python/sphinx[${PYTHON_USEDEP}]
		doc? ( dev-python/recommonmark[${PYTHON_USEDEP}] )
	')"
# There are no file collisions between these versions but having :0
# installed means llvm-config there will take precedence.
RDEPEND="${RDEPEND}
	!sys-devel/llvm:0"
PDEPEND="sys-devel/llvm-common
	gold? ( >=sys-devel/llvmgold-${SLOT} )"

python_check_deps() {
	if use doc; then
		has_version -b "dev-python/recommonmark[${PYTHON_USEDEP}]" ||
			return 1
	fi
	has_version -b "dev-python/sphinx[${PYTHON_USEDEP}]"
}

check_live_ebuild() {
	local prod_targets=(
		$(sed -n -e '/set(LLVM_ALL_TARGETS/,/)/p' CMakeLists.txt \
			| tail -n +2 | head -n -1)
	)
	local all_targets=(
		lib/Target/*/
	)
	all_targets=( "${all_targets[@]#lib/Target/}" )
	all_targets=( "${all_targets[@]%/}" )

	local exp_targets=() i
	for i in "${all_targets[@]}"; do
		has "${i}" "${prod_targets[@]}" || exp_targets+=( "${i}" )
	done
	# reorder
	all_targets=( "${prod_targets[@]}" "${exp_targets[@]}" )

	if [[ ${exp_targets[*]} != ${ALL_LLVM_EXPERIMENTAL_TARGETS[*]} ]]; then
		eqawarn "ALL_LLVM_EXPERIMENTAL_TARGETS is outdated!"
		eqawarn "    Have: ${ALL_LLVM_EXPERIMENTAL_TARGETS[*]}"
		eqawarn "Expected: ${exp_targets[*]}"
		eqawarn
	fi

	if [[ ${all_targets[*]} != ${ALL_LLVM_TARGETS[*]#llvm_targets_} ]]; then
		eqawarn "ALL_LLVM_TARGETS is outdated!"
		eqawarn "    Have: ${ALL_LLVM_TARGETS[*]#llvm_targets_}"
		eqawarn "Expected: ${all_targets[*]}"
	fi
}

check_distribution_components() {
	if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
		local all_targets=() my_targets=() l
		cd "${BUILD_DIR}" || die

		while read -r l; do
			if [[ ${l} == install-*-stripped:* ]]; then
				l=${l#install-}
				l=${l%%-stripped*}

				case ${l} in
					# shared libs
					LLVM|LLVMgold)
						;;
					# TableGen lib + deps
					LLVMDemangle|LLVMSupport|LLVMTableGen)
						;;
					# static libs
					LLVM*)
						continue
						;;
					# meta-targets
					distribution|llvm-libraries)
						continue
						;;
					# used only w/ USE=doc
					docs-llvm-html)
						continue
						;;
				esac

				all_targets+=( "${l}" )
			fi
		done < <(ninja -t targets all)

		while read -r l; do
			my_targets+=( "${l}" )
		done < <(get_distribution_components $"\n")

		local add=() remove=()
		for l in "${all_targets[@]}"; do
			if ! has "${l}" "${my_targets[@]}"; then
				add+=( "${l}" )
			fi
		done
		for l in "${my_targets[@]}"; do
			if ! has "${l}" "${all_targets[@]}"; then
				remove+=( "${l}" )
			fi
		done

		if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
			eqawarn "get_distribution_components() is outdated!"
			eqawarn "   Add: ${add[*]}"
			eqawarn "Remove: ${remove[*]}"
		fi
		cd - >/dev/null || die
	fi
}

src_prepare() {
	# Fix llvm-config for shared linking and sane flags
	# https://bugs.gentoo.org/show_bug.cgi?id=565358
	eapply "${FILESDIR}"/9999/0007-llvm-config-Clean-up-exported-values-update-for-shar.patch

	# disable use of SDK on OSX, bug #568758
	sed -i -e 's/xcrun/false/' utils/lit/lit/util.py || die

	# Update config.guess to support more systems
	cp "${BROOT}/usr/share/gnuconfig/config.guess" cmake/ || die

	# Verify that the live ebuild is up-to-date
	check_live_ebuild

	llvm.org_src_prepare
}

# Is LLVM being linked against libc++?
is_libcxx_linked() {
	local code='#include <ciso646>
#if defined(_LIBCPP_VERSION)
	HAVE_LIBCXX
#endif
'
	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1

	[[ ${out} == *HAVE_LIBCXX* ]]
}

get_distribution_components() {
	local sep=${1-;}

	local out=(
		# shared libs
		LLVM
		LTO
		Remarks

		# tools
		llvm-config

		# common stuff
		cmake-exports
		llvm-headers

		# libraries needed for clang-tblgen
		LLVMDemangle
		LLVMSupport
		LLVMTableGen
	)

	if multilib_is_native_abi; then
		out+=(
			# utilities
			llvm-tblgen
			FileCheck
			llvm-PerfectShuffle
			count
			not
			yaml-bench

			# tools
			bugpoint
			dsymutil
			llc
			lli
			lli-child-target
			llvm-addr2line
			llvm-ar
			llvm-as
			llvm-bcanalyzer
			llvm-c-test
			llvm-cat
			llvm-cfi-verify
			llvm-config
			llvm-cov
			llvm-cvtres
			llvm-cxxdump
			llvm-cxxfilt
			llvm-cxxmap
			llvm-diff
			llvm-dis
			llvm-dlltool
			llvm-dwarfdump
			llvm-dwp
			llvm-elfabi
			llvm-exegesis
			llvm-extract
			llvm-gsymutil
			llvm-ifs
			llvm-install-name-tool
			llvm-jitlink
			llvm-lib
			llvm-libtool-darwin
			llvm-link
			llvm-lipo
			llvm-lto
			llvm-lto2
			llvm-mc
			llvm-mca
			llvm-ml
			llvm-modextract
			llvm-mt
			llvm-nm
			llvm-objcopy
			llvm-objdump
			llvm-opt-report
			llvm-pdbutil
			llvm-profdata
			llvm-ranlib
			llvm-rc
			llvm-readelf
			llvm-readobj
			llvm-reduce
			llvm-rtdyld
			llvm-size
			llvm-split
			llvm-stress
			llvm-strings
			llvm-strip
			llvm-symbolizer
			llvm-undname
			llvm-xray
			obj2yaml
			opt
			sancov
			sanstats
			verify-uselistorder
			yaml2obj

			# python modules
			opt-viewer

			# manpages
			docs-dsymutil-man
			docs-llvm-dwarfdump-man
			docs-llvm-man
		)
		use doc && out+=(
			docs-llvm-html
		)

		use gold && out+=(
			LLVMgold
		)
	fi

	printf "%s${sep}" "${out[@]}"
}

multilib_src_configure() {
	local ffi_cflags ffi_ldflags
	if use libffi; then
		ffi_cflags=$($(tc-getPKG_CONFIG) --cflags-only-I libffi)
		ffi_ldflags=$($(tc-getPKG_CONFIG) --libs-only-L libffi)
	fi

	local libdir=$(get_libdir)
	local mycmakeargs=(
		# disable appending VCS revision to the version to improve
		# direct cache hit ratio
		-DLLVM_APPEND_VC_REV=OFF
		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}

		-DBUILD_SHARED_LIBS=OFF
		-DLLVM_BUILD_LLVM_DYLIB=ON
		-DLLVM_LINK_LLVM_DYLIB=ON
		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)

		# cheap hack: LLVM combines both anyway, and the only difference
		# is that the former list is explicitly verified at cmake time
		-DLLVM_TARGETS_TO_BUILD=""
		-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
		-DLLVM_BUILD_TESTS=$(usex test)

		-DLLVM_ENABLE_FFI=$(usex libffi)
		-DLLVM_ENABLE_LIBEDIT=$(usex libedit)
		-DLLVM_ENABLE_TERMINFO=$(usex ncurses)
		-DLLVM_ENABLE_LIBXML2=$(usex xml)
		-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
		-DLLVM_ENABLE_LIBPFM=$(usex exegesis)
		-DLLVM_ENABLE_EH=ON
		-DLLVM_ENABLE_RTTI=ON
		-DLLVM_ENABLE_Z3_SOLVER=$(usex z3)

		-DLLVM_HOST_TRIPLE="${CHOST}"

		-DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
		-DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
		# used only for llvm-objdump tool
		-DHAVE_LIBXAR=$(multilib_native_usex xar 1 0)

		-DPython3_EXECUTABLE="${PYTHON}"

		# disable OCaml bindings (now in dev-ml/llvm-ocaml)
		-DOCAMLFIND=NO
	)

	if is_libcxx_linked; then
		# Smart hack: alter version suffix -> SOVERSION when linking
		# against libc++. This way we won't end up mixing LLVM libc++
		# libraries with libstdc++ clang, and the other way around.
		mycmakeargs+=(
			-DLLVM_VERSION_SUFFIX="libcxx"
		)
	fi

#	Note: go bindings have no CMake rules at the moment
#	but let's kill the check in case they are introduced
#	if ! multilib_is_native_abi || ! use go; then
		mycmakeargs+=(
			-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
		)
#	fi

	use test && mycmakeargs+=(
		-DLLVM_LIT_ARGS="$(get_lit_flags)"
	)

	if multilib_is_native_abi; then
		mycmakeargs+=(
			-DLLVM_BUILD_DOCS=ON
			-DLLVM_ENABLE_OCAMLDOC=OFF
			-DLLVM_ENABLE_SPHINX=ON
			-DLLVM_ENABLE_DOXYGEN=OFF
			-DLLVM_INSTALL_UTILS=ON
			-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
			-DLLVM_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
			-DSPHINX_WARNINGS_AS_ERRORS=OFF
		)
		use gold && mycmakeargs+=(
			-DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
		)
	fi

	if tc-is-cross-compiler; then
		local tblgen="${EPREFIX}/usr/lib/llvm/${SLOT}/bin/llvm-tblgen"
		[[ -x "${tblgen}" ]] \
			|| die "${tblgen} not found or usable"
		mycmakeargs+=(
			-DCMAKE_CROSSCOMPILING=ON
			-DLLVM_TABLEGEN="${tblgen}"
		)
	fi

	# workaround BMI bug in gcc-7 (fixed in 7.4)
	# https://bugs.gentoo.org/649880
	# apply only to x86, https://bugs.gentoo.org/650506
	if tc-is-gcc && [[ ${MULTILIB_ABI_FLAG} == abi_x86* ]] &&
			[[ $(gcc-major-version) -eq 7 && $(gcc-minor-version) -lt 4 ]]
	then
		local CFLAGS="${CFLAGS} -mno-bmi"
		local CXXFLAGS="${CXXFLAGS} -mno-bmi"
	fi

	# LLVM can have very high memory consumption while linking,
	# exhausting the limit on 32-bit linker executable
	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"

	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
	cmake_src_configure

	multilib_is_native_abi && check_distribution_components
}

multilib_src_compile() {
	cmake_build distribution

	pax-mark m "${BUILD_DIR}"/bin/llvm-rtdyld
	pax-mark m "${BUILD_DIR}"/bin/lli
	pax-mark m "${BUILD_DIR}"/bin/lli-child-target

	if use test; then
		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/Orc/OrcJITTests
		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/MCJIT/MCJITTests
		pax-mark m "${BUILD_DIR}"/unittests/Support/SupportTests
	fi
}

multilib_src_test() {
	# respect TMPDIR!
	local -x LIT_PRESERVES_TMP=1
	cmake_build check
}

src_install() {
	local MULTILIB_CHOST_TOOLS=(
		/usr/lib/llvm/${SLOT}/bin/llvm-config
	)

	local MULTILIB_WRAPPED_HEADERS=(
		/usr/include/llvm/Config/llvm-config.h
	)

	local LLVM_LDPATHS=()
	multilib-minimal_src_install

	# move wrapped headers back
	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${SLOT}/include || die
}

multilib_src_install() {
	DESTDIR=${D} cmake_build install-distribution

	# move headers to /usr/include for wrapping
	rm -rf "${ED}"/usr/include || die
	mv "${ED}"/usr/lib/llvm/${SLOT}/include "${ED}"/usr/include || die

	LLVM_LDPATHS+=( "${EPREFIX}/usr/lib/llvm/${SLOT}/$(get_libdir)" )
}

multilib_src_install_all() {
	local revord=$(( 9999 - ${SLOT} ))
	newenvd - "60llvm-${revord}" <<-_EOF_
		PATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
		# we need to duplicate it in ROOTPATH for Portage to respect...
		ROOTPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
		MANPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
		LDPATH="$( IFS=:; echo "${LLVM_LDPATHS[*]}" )"
	_EOF_

	docompress "/usr/lib/llvm/${SLOT}/share/man"
}

pkg_postinst() {
	elog "You can find additional opt-viewer utility scripts in:"
	elog "  ${EROOT}/usr/lib/llvm/${SLOT}/share/opt-viewer"
	elog "To use these scripts, you will need Python along with the following"
	elog "packages:"
	elog "  dev-python/pygments (for opt-viewer)"
	elog "  dev-python/pyyaml (for all of them)"
}