summaryrefslogtreecommitdiff
blob: a89b5e4ff910e0a1dc31370d36c265b187eda8ad (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
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit eutils flag-o-matic multilib toolchain-funcs
if [[ ${PV} == "9999" ]] ; then
	EGIT_REPO_URI="git://git.musl-libc.org/musl"
	inherit git-r3
	SRC_URI="
	https://dev.gentoo.org/~blueness/musl-misc/getconf.c
	https://dev.gentoo.org/~blueness/musl-misc/getent.c
	https://dev.gentoo.org/~blueness/musl-misc/iconv.c"
	KEYWORDS=""
else
	SRC_URI="http://www.musl-libc.org/releases/${P}.tar.gz
	https://dev.gentoo.org/~blueness/musl-misc/getconf.c
	https://dev.gentoo.org/~blueness/musl-misc/getent.c
	https://dev.gentoo.org/~blueness/musl-misc/iconv.c"
	KEYWORDS="-* amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 x86"
fi

export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
	if [[ ${CATEGORY} == cross-* ]] ; then
		export CTARGET=${CATEGORY#cross-}
	fi
fi

DESCRIPTION="Light, fast and simple C library focused on standards-conformance and safety"
HOMEPAGE="http://www.musl-libc.org/"
LICENSE="MIT LGPL-2 GPL-2"
SLOT="0"
IUSE="headers-only"

QA_SONAME="/usr/lib/libc.so"
QA_DT_NEEDED="/usr/lib/libc.so"

PATCHES=(
	"${FILESDIR}/${P}-CVE-2020-28928.patch"
)

is_crosscompile() {
	[[ ${CHOST} != ${CTARGET} ]]
}

just_headers() {
	use headers-only && is_crosscompile
}

pkg_setup() {
	if [ ${CTARGET} == ${CHOST} ] ; then
		case ${CHOST} in
		*-musl*) ;;
		*) die "Use sys-devel/crossdev to build a musl toolchain" ;;
		esac
	fi

	# fix for #667126, copied from glibc ebuild
	# make sure host make.conf doesn't pollute us
	if is_crosscompile || tc-is-cross-compiler ; then
		CHOST=${CTARGET} strip-unsupported-flags
	fi
}

src_configure() {
	tc-getCC ${CTARGET}
	just_headers && export CC=true

	local sysroot
	is_crosscompile && sysroot=/usr/${CTARGET}
	./configure \
		--target=${CTARGET} \
		--prefix=${sysroot}/usr \
		--syslibdir=${sysroot}/lib \
		--disable-gcc-wrapper || die
}

src_compile() {
	emake obj/include/bits/alltypes.h
	just_headers && return 0

	emake
	if [[ ${CATEGORY} != cross-* ]] ; then
		emake -C "${T}" getconf getent iconv \
			CC="$(tc-getCC)" \
			CFLAGS="${CFLAGS}" \
			CPPFLAGS="${CPPFLAGS}" \
			LDFLAGS="${LDFLAGS}" \
			VPATH="${DISTDIR}"
	fi
}

src_install() {
	local target="install"
	just_headers && target="install-headers"
	emake DESTDIR="${D}" ${target}
	just_headers && return 0

	# musl provides ldd via a sym link to its ld.so
	local sysroot
	is_crosscompile && sysroot=/usr/${CTARGET}
	local ldso=$(basename "${D}"${sysroot}/lib/ld-musl-*)
	dosym ${sysroot}/lib/${ldso} ${sysroot}/usr/bin/ldd

	if [[ ${CATEGORY} != cross-* ]] ; then
		# Fish out of config:
		#   ARCH = ...
		#   SUBARCH = ...
		# and print $(ARCH)$(SUBARCH).
		local arch=$(awk '{ k[$1] = $3 } END { printf("%s%s", k["ARCH"], k["SUBARCH"]); }' config.mak)
		[[ -e "${D}"/lib/ld-musl-${arch}.so.1 ]] || die
		cp "${FILESDIR}"/ldconfig.in "${T}" || die
		sed -e "s|@@ARCH@@|${arch}|" "${T}"/ldconfig.in > "${T}"/ldconfig || die
		into /
		dosbin "${T}"/ldconfig
		into /usr
		dobin "${T}"/getconf
		dobin "${T}"/getent
		dobin "${T}"/iconv
		echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00musl || die
		doenvd "${T}"/00musl
	fi
}

pkg_postinst() {
	is_crosscompile && return 0

	[ "${ROOT}" != "/" ] && return 0

	ldconfig || die
}