DESCRIPTION = "klibc is intended to be a minimalistic libc subset for \
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use with initramfs. It is deliberately written for small size, \
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minimal entaglement, and portability, not speed."
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SECTION = "libs"
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LICENSE = "BSD-3-Clause & GPL-2.0 & MIT & Zlib"
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LIC_FILES_CHKSUM = "file://usr/klibc/LICENSE;md5=d75181f10e998c21eb147f6d2e43ce8b"
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DEPENDS = "linux-libc-headers perl-native"
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SRC_URI = "${KERNELORG_MIRROR}/linux/libs/klibc/2.0/klibc-${PV}.tar.xz \
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${ARMPATCHES} \
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file://klcc-consider-sysroot.patch \
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file://klcc-cross-accept-clang-options.patch \
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file://0001-dash-Specify-format-string-in-fmtstr.patch \
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file://0001-Define-in_-structs-for-non-glibc-system-libs.patch \
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file://0001-include-linux-sysinfo.h-directly.patch \
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file://0001-mkfifo-Implement-mkfifo.patch \
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file://0001-always-use-bfd-linker.patch \
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file://0001-arm-Do-not-set-a-fallback-march-and-mtune.patch \
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file://0001-klibc_2.0.4-add-kexec_file_load-syscall.patch \
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file://0001-klibc-add-getrandom-syscall.patch \
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file://0001-klibc-Kbuild-Accept-EXTRA_KLIBCAFLAGS.patch \
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file://cross-clang.patch \
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file://0001-workaround-for-overlapping-sections-in-binary.patch \
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"
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ARMPATCHES ?= ""
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ARMPATCHES:arm = " \
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file://armv4-fix-v4bx.patch \
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"
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SRC_URI[sha256sum] = "4e48f1398cfe3ce0b6df55ce6e70acf54fc8488e3aea3fb3610ee1622d9cb436"
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S = "${WORKDIR}/klibc-${PV}"
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OPTFLAGS = "${TUNE_CCARGS} -Os -fcommon"
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OPTFLAGS:append:toolchain-clang = " -fno-builtin-bcmp"
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OPTFLAGS:append:toolchain-clang:mipsarch = " -no-integrated-as"
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PARALLEL_MAKE = ""
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EXTRA_OEMAKE = "'KLIBCARCH=${KLIBC_ARCH}' \
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'CROSS_COMPILE=${TARGET_PREFIX}' \
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'KLIBCKERNELSRC=${STAGING_DIR_TARGET}${exec_prefix}' \
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'KLIBCLIBGCC=${STAGING_DIR_TARGET}${libdir}/${TARGET_SYS}/*/libgcc.a' \
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'prefix=${exec_prefix}' \
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'INSTALLROOT=${D}' \
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'INSTALLDIR=${libdir}/klibc' \
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'SHLIBDIR=${libdir}' \
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'${KLIBCTHUMB}' \
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'KLIBCOPTFLAGS=${OPTFLAGS}' \
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V=1 \
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"
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export FIX_ARMV4_EABI_BX = "${FIX_V4BX}"
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KLIBCTHUMB = "${@['CONFIG_KLIBC_THUMB=n', 'CONFIG_KLIBC_THUMB=y'][(d.getVar('ARM_INSTRUCTION_SET') == 'thumb')]}"
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do_configure () {
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ln -sf "${STAGING_DIR_TARGET}${exec_prefix}" linux
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}
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do_compile:prepend:toolchain-clang() {
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sed -i -e 's#$(KLIBCROSS)gcc#$(KLIBCROSS)clang#g' ${S}/Makefile
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}
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INHIBIT_PACKAGE_STRIP = "1"
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INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
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INSANE_SKIP:${PN} = "already-stripped"
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INSANE_SKIP:libklibc-dev = "dev-elf"
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KLIBC_ARCH = "${TARGET_ARCH}"
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KLIBC_ARCH:aarch64 = "arm64"
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KLIBC_ARCH:armeb = "arm"
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KLIBC_ARCH:mipsel = "mips"
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KLIBC_ARCH:mips64el = "mips64"
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KLIBC_ARCH:x86 = "i386"
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KLIBC_ARCH:x86-64 = "x86_64"
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KLIBC_ARCH:powerpc = "ppc"
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KLIBC_ARCH:powerpc64 = "ppc64"
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KLIBC_ARCH:powerpc64le = "ppc64"
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THIS_LIBKLIBC = "libklibc (= ${PV}-${PR})"
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