[gentoo-commits] repo/gentoo:master commit in: sys-devel/llvm-roc/

["Benda XU" <heroxbd@gentoo.org>]

commit:     a3ecb54a88984f4549cffe7d5ba039ef2eebd928
Author:     Benda Xu <heroxbd <AT> gentoo <DOT> org>
AuthorDate: Wed Dec 23 16:49:50 2020 +0000
Commit:     Benda XU <heroxbd <AT> gentoo <DOT> org>
CommitDate: Sun Dec 27 01:55:25 2020 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a3ecb54a

sys-devel/llvm-roc: add support for Prefix.

The logic is modeled after
profiles/features/prefix/standalone/profile.bashrc.

With the location of hip changed to /usr/lib/hip, let clang of
llvm-roc look for EPREFIX/usr/lib/hip instead of vendor /opt/rocm.

Suggested-by: Yiyang Wu <xgreenlandforwyy <AT> gmail.com>
Package-Manager: Portage-3.0.12, Repoman-3.0.1
Signed-off-by: Benda Xu <heroxbd <AT> gentoo.org>

 sys-devel/llvm-roc/llvm-roc-4.0.0.ebuild | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/sys-devel/llvm-roc/llvm-roc-4.0.0.ebuild b/sys-devel/llvm-roc/llvm-roc-4.0.0.ebuild
index 2d3f3939411..64b2abf582b 100644
--- a/sys-devel/llvm-roc/llvm-roc-4.0.0.ebuild
+++ b/sys-devel/llvm-roc/llvm-roc-4.0.0.ebuild
@@ -33,6 +33,27 @@ CMAKE_BUILD_TYPE=RelWithDebInfo
 src_prepare() {
 	cd "${WORKDIR}/llvm-project-rocm-${PV}" || die
 	eapply "${FILESDIR}/${PN}-3.0.0-add_libraries.patch"
+
+	if [[ -n ${EPREFIX} ]]; then
+		pushd "${S}"/../clang >/dev/null || die
+		sed -i -e "s@DEFAULT_SYSROOT \"\"@DEFAULT_SYSROOT \"${EPREFIX}\"@" CMakeLists.txt
+		eend $?
+
+		ebegin "Use ${EPREFIX} as default sysroot"
+		cd lib/Driver/ToolChains >/dev/null || die
+		ebegin "Use dynamic linker from ${EPREFIX}"
+		sed -i -e "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX%/}/\"@" Linux.cpp
+		eend $?
+
+		ebegin "Remove --sysroot call on ld for native toolchain"
+		sed -i -e "$(grep -n -B1 sysroot= Gnu.cpp | sed -ne '{1s/-.*//;1p}'),+1 d" Gnu.cpp
+		eend $?
+		popd >/dev/null || die
+	fi
+
+	sed -e 's:/opt/rocm:/usr/lib/hip:' \
+		-i "${S}"/../clang/lib/Driver/ToolChains/AMDGPU.cpp
+
 	eapply_user
 	cmake_src_prepare
 }