[OE-core] [PATCH V2 2/2] musl: Add aliases for glibc provided libraries

[Khem Raj]

This is a step towards running pebuilt applications for glibc  on musl
There are many realworld applications which are not always built from
source, especially provided by third party

Package the glibc symlinks into new package musl-glibc-compat

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
V2 - Package new symlinks into separate compat package

 meta/recipes-core/musl/musl_git.bb | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/meta/recipes-core/musl/musl_git.bb b/meta/recipes-core/musl/musl_git.bb
index be31718e3a..efdf620c6c 100644
--- a/meta/recipes-core/musl/musl_git.bb
+++ b/meta/recipes-core/musl/musl_git.bb
@@ -26,6 +26,14 @@ DEPENDS = "virtual/${TARGET_PREFIX}binutils \
            bsd-headers \
            libssp-nonshared \
           "
+GLIBC_LDSO ?= "ld.so.1"
+GLIBC_LDSO_arm = "${@ bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', 'ld-linux-armhf.so.3', 'ld-linux.so.3', d)}"
+GLIBC_LDSO_aarch64 = "ld-linux-aarch64.so.1"
+GLIBC_LDSO_x86 = "ld-linux.so.2"
+GLIBC_LDSO_x86_64 = "ld-linux-x86-64.so.2"
+GLIBC_LDSO_x32 = "ld-linux-x32.so.2"
+GLIBC_LDSO_powerpc64 = "ld64.so.1"
+GLIBC_LDSO_mips64 = "ld64.so.1"
 
 export CROSS_COMPILE="${TARGET_PREFIX}"
 
@@ -62,12 +70,26 @@ do_install() {
 	install -d ${D}${bindir}
 	rm -f ${D}${bindir}/ldd
 	lnr ${D}${libdir}/libc.so ${D}${bindir}/ldd
+	lnr ${D}${libdir}/libc.so ${D}${base_libdir}/${GLIBC_LDSO}
 	for l in crypt dl m pthread resolv rt util xnet
 	do
 		ln -sf libc.so ${D}${libdir}/lib$l.so
 	done
+	for i in libc.so.6 libcrypt.so.1 libdl.so.2 libm.so.6 libpthread.so.0 libresolv.so.2 librt.so.1 libutil.so.1; do
+		ln -sf libc.so ${D}${libdir}/$i
+	done
 }
 
+PACKAGES =+ "${PN}-glibc-compat"
+
+FILES_${PN}-glibc-compat += "\
+                ${libdir}/libc.so.6 ${libdir}/libcrypt.so.1 \
+                ${libdir}/libdl.so.2 ${libdir}/libm.so.6 \
+                ${libdir}/libpthread.so.0 ${libdir}/libresolv.so.2 \
+                ${libdir}/librt.so.1 ${libdir}/libutil.so.1 \
+                ${base_libdir}/${GLIBC_LDSO} \
+                "
+
 RDEPENDS_${PN}-dev += "linux-libc-headers-dev bsd-headers-dev libssp-nonshared-staticdev"
 RPROVIDES_${PN}-dev += "libc-dev virtual-libc-dev"
 RPROVIDES_${PN} += "ldd libsegfault rtld(GNU_HASH)"
-- 
2.19.0