kumquat-buildroot/package/libclc/libclc.mk
Valentin Korenblit f265e5d905 package/libclc: new package
This patch provides libclc, an open source implementation of the
library requirements of the OpenCL C programming language, as
specified by the OpenCL 1.1 Specification. It is intended to be used
with Clover (Mesa3D's OpenCL implementation for AMD GPUs.

It needs to be compiled with host-clang, as it generates LLVM IR bitcode
files containing device builtin functions for each target.

Currently, libclc supports AMDGCN, R600 and NVPTX targets.

As OpenCL kernels can be built dynamically on the target using libclang and
libLLVM, it is necessary to have clc headers installed on the target. Buildroot
removes /usr/include in its target-finalize step, so clc headers are installed to
/usr/share/clc.

Signed-off-by: Valentin Korenblit <valentin.korenblit@smile.fr>
Signed-off-by: Valentin Korenblit <valentinkorenblit@gmail.com>
Reviewed-by: Romain Naour <romain.naour@smile.fr>
[Thomas:
 - fix license information as noticed by Romain
 - add comment to explain why --includedir=/usr/share is used]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-20 17:35:26 +02:00

48 lines
1.4 KiB
Makefile

################################################################################
#
# libclc
#
################################################################################
# There are only two releases: release_35 and release_38, but the last
# commit is from 2 years ago. Master has some recent activity.
LIBCLC_VERSION = dabae5a2afb78cba0320a86e3f5f0b5dc83e077c
LIBCLC_SITE = https://git.llvm.org/git/libclc
LIBCLC_SITE_METHOD = git
LIBCLC_LICENSE = NCSA or MIT
LIBCLC_LICENSE_FILES = LICENSE.TXT
LIBCLC_DEPENDENCIES = host-clang host-llvm
LIBCLC_INSTALL_STAGING = YES
# C++ compiler is used to build a small tool (prepare-builtins) for the host.
# It must be built with the C++ compiler from the host.
#
# The headers are installed in /usr/share and not /usr/include,
# because they are needed at runtime on the target to build the OpenCL
# kernels.
LIBCLC_CONF_OPTS = \
--with-llvm-config=$(HOST_DIR)/usr/bin/llvm-config \
--prefix=/usr \
--includedir=/usr/share \
--pkgconfigdir=/usr/lib/pkgconfig \
--with-cxx-compiler=$(HOSTCXX)
define LIBCLC_CONFIGURE_CMDS
(cd $(@D); $(TARGET_CONFIGURE_OPTS) ./configure.py $(LIBCLC_CONF_OPTS))
endef
define LIBCLC_BUILD_CMDS
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)
endef
define LIBCLC_INSTALL_TARGET_CMDS
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) DESTDIR=$(TARGET_DIR) install
endef
define LIBCLC_INSTALL_STAGING_CMDS
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) DESTDIR=$(STAGING_DIR) install
endef
$(eval $(generic-package))