blob: 34374381bf614252055a3037fe80a269a696aacd (
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
|
# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{11..14} )
inherit cmake-multilib crossdev flag-o-matic llvm.org llvm-utils
inherit python-any-r1 toolchain-funcs
DESCRIPTION="Low level support for a standard C++ library"
HOMEPAGE="https://libcxxabi.llvm.org/"
LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
SLOT="0"
IUSE="+clang +static-libs test"
REQUIRED_USE="test? ( clang )"
RESTRICT="!test? ( test )"
DEPEND="
${RDEPEND}
llvm-core/llvm:${LLVM_MAJOR}
"
BDEPEND="
clang? (
llvm-core/clang:${LLVM_MAJOR}
llvm-core/clang-linker-config:${LLVM_MAJOR}
llvm-runtimes/clang-rtlib-config:${LLVM_MAJOR}
llvm-runtimes/clang-unwindlib-config:${LLVM_MAJOR}
)
!test? (
${PYTHON_DEPS}
)
test? (
$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
)
"
LLVM_COMPONENTS=( runtimes libcxx{abi,} llvm/cmake cmake )
LLVM_TEST_COMPONENTS=(
libc llvm/include/llvm/{Demangle,Testing} llvm/utils/llvm-lit
)
llvm.org_set_globals
python_check_deps() {
use test || return 0
python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
}
test_compiler() {
target_is_not_host && return
$(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
<<<'int main() { return 0; }' &>/dev/null
}
multilib_src_configure() {
# Workaround for bgo #961153.
# TODO: Fix the multilib.eclass, so it sets CTARGET properly.
if ! is_crosspkg; then
export CTARGET=${CHOST}
fi
if use clang; then
llvm_prepend_path -b "${LLVM_MAJOR}"
local -x CC=${CTARGET}-clang-${LLVM_MAJOR}
local -x CXX=${CTARGET}-clang++-${LLVM_MAJOR}
strip-unsupported-flags
# The full clang configuration might not be ready yet. Use the partial
# configuration of components that libunwind depends on.
local flags=(
--config="${ESYSROOT}"/etc/clang/"${LLVM_MAJOR}"/gentoo-{rtlib,unwindlib,linker}.cfg
)
local -x CFLAGS="${CFLAGS} ${flags[@]}"
local -x CXXFLAGS="${CXXFLAGS} ${flags[@]}"
local -x LDFLAGS="${LDFLAGS} ${flags[@]}"
fi
local nostdlib_flags=( -nostdlib++ )
if ! test_compiler && test_compiler "${nostdlib_flags[@]}"; then
local -x LDFLAGS="${LDFLAGS} ${nostdlib_flags[*]}"
ewarn "${CXX} seems to lack stdlib, trying with ${nostdlib_flags[*]}"
fi
# link to compiler-rt
local use_compiler_rt=OFF
[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
local libdir=$(get_libdir)
local mycmakeargs=(
-DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"
-DCMAKE_CXX_COMPILER_TARGET="${CTARGET}"
-DPython3_EXECUTABLE="${PYTHON}"
-DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx"
-DLLVM_INCLUDE_TESTS=OFF
-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
-DLIBCXXABI_ENABLE_SHARED=ON
-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
-DLIBCXXABI_USE_COMPILER_RT=${use_compiler_rt}
# upstream is omitting standard search path for this
# probably because gcc & clang are bundling their own unwind.h
-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
# this is broken with standalone builds, and also meaningless
-DLIBCXXABI_USE_LLVM_UNWINDER=OFF
-DLIBCXX_ENABLE_SHARED=ON
-DLIBCXX_ENABLE_STATIC=OFF
-DLIBCXX_CXX_ABI=libcxxabi
-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
-DLIBCXX_HAS_MUSL_LIBC=$(llvm_cmake_use_musl)
-DLIBCXX_HAS_GCC_S_LIB=OFF
-DLIBCXX_INCLUDE_BENCHMARKS=OFF
-DLIBCXX_INCLUDE_TESTS=OFF
)
if is_crosspkg; then
mycmakeargs+=(
# Without this, the compiler will compile a test program
# and fail due to no builtins.
-DCMAKE_C_COMPILER_WORKS=1
-DCMAKE_CXX_COMPILER_WORKS=1
# Install inside the cross sysroot.
-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/${CTARGET}/usr"
)
fi
if use test; then
mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="$(get_lit_flags)"
-DPython3_EXECUTABLE="${PYTHON}"
)
fi
cmake_src_configure
}
multilib_src_compile() {
cmake_build cxxabi
}
multilib_src_test() {
local -x LIT_PRESERVES_TMP=1
cmake_build check-cxxabi
}
multilib_src_install() {
DESTDIR="${D}" cmake_build install-cxxabi
}
|
