openblas: new package

OpenBLAS is optimised for specific CPU models, which don't fully match
with the GCC code generation options. Therefore, we can't automatically
select BR2_PACKAGE_OPENBLAS_TARGET based on the CPU choice. Instead, let
the user select the TARGET name, but offer a sensible default. Other
possible solutions were deemed too complicated: adding choice options in
the ambiguous cases, or only making the option user-visible when there
is ambiguity.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/Config.in b/package/Config.in
index ead675bc256d4c0a394f500a79d3d7f9b7a34f28..f120025cfb0ac4ba59498e515574fd6bff92fc31 100644 (file)
--- a/package/Config.in
+++ b/package/Config.in
@@ -1304,6 +1304,7 @@ endif
        source "package/msgpack/Config.in"
        source "package/mtdev2tuio/Config.in"
        source "package/netbsd-queue/Config.in"
+       source "package/openblas/Config.in"
        source "package/orc/Config.in"
        source "package/p11-kit/Config.in"
        source "package/poco/Config.in"

diff --git a/package/openblas/Config.in b/package/openblas/Config.in
new file mode 100644 (file)
index 0000000..51afaec
--- /dev/null
+++ b/package/openblas/Config.in
@@ -0,0 +1,62 @@
+config BR2_PACKAGE_OPENBLAS_DEFAULT_TARGET
+       string
+       default "P2"           if BR2_x86_pentium2
+       default "KATMAI"       if BR2_x86_pentium3
+       default "NORTHWOOD"    if BR2_x86_pentium4
+       default "PRESCOTT"     if BR2_x86_prescott
+       default "BANIAS"       if BR2_x86_pentium_m
+       default "CORE2"        if BR2_x86_core2
+       default "NEHALEM"      if BR2_x86_corei7
+       default "SANDYBRIDGE"  if BR2_x86_corei7_avx
+       default "HASWELL"      if BR2_x86_core_avx2
+       default "ATOM"         if BR2_x86_atom
+       default "ATHLON"       if BR2_x86_athlon || BR2_x86_athlon_4
+       default "OPTERON"      if BR2_x86_opteron
+       default "OPTERON_SSE3" if BR2_x86_opteron_sse3
+       default "BARCELONA"    if BR2_x86_barcelona
+       default "STEAMROLLER"  if BR2_x86_steamroller
+       default "VIAC3"        if BR2_x86_c3 || BR2_x86_c32
+       default "SSE_GENERIC"  if BR2_X86_CPU_HAS_SSE
+       default "POWER4"       if BR2_powerpc_power4
+       default "POWER5"       if BR2_powerpc_power5
+       default "POWER6"       if BR2_powerpc_power6
+       default "POWER7"       if BR2_powerpc_power7
+       default "POWER8"       if BR2_powerpc_power8
+       default "PPCG4"        if BR2_powerpc_7400 || BR2_powerpc_7450
+       default "PPC970"       if BR2_powerpc_970
+       default "PPC440"       if BR2_powerpc_440
+       default "PPC440FP2"    if BR2_powerpc_440fp
+       default "P5600"        if BR2_mips_32r2
+       default "SICORTEX"     if BR2_mips_64
+       default "I6400"        if BR2_mips_64r6
+       default "SPARC"        if BR2_sparc
+       default "CORTEXA15"    if BR2_cortex_a15
+       default "CORTEXA9"     if BR2_cortex_a9
+       default "ARMV5"        if BR2_ARM_CPU_ARMV5
+       default "ARMV6"        if BR2_ARM_CPU_ARMV6
+       default "ARMV7"        if BR2_ARM_CPU_ARMV7A
+       default "ARMV8"        if BR2_aarch64 || BR2_aarch64_be
+       help
+         OpenBLAS target CPU. See TargetList.txt in the source tree for
+         the possible target strings. A possible value is set
+         automatically based on your Target Architecture Variant.
+
+config BR2_PACKAGE_OPENBLAS_ARCH_SUPPORTS
+       bool
+       default y if BR2_PACKAGE_OPENBLAS_DEFAULT_TARGET != ""
+
+config BR2_PACKAGE_OPENBLAS
+       bool "openblas"
+       depends on BR2_PACKAGE_OPENBLAS_ARCH_SUPPORTS
+       help
+         An optimized BLAS library based on GotoBLAS2 1.13 BSD version.
+
+         https://www.openblas.net/
+
+if BR2_PACKAGE_OPENBLAS
+
+config BR2_PACKAGE_OPENBLAS_TARGET
+       string "OpenBLAS target CPU"
+       default BR2_PACKAGE_OPENBLAS_DEFAULT_TARGET
+
+endif

diff --git a/package/openblas/openblas.hash b/package/openblas/openblas.hash
new file mode 100644 (file)
index 0000000..b402cac
--- /dev/null
+++ b/package/openblas/openblas.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 2ad0270a39dbaf891b439baacf198ea4ab149cd6ed39a5f50c494723f1936be5  openblas-f04af36ad0e85b64f12a7c38095383192cc52345.tar.gz

diff --git a/package/openblas/openblas.mk b/package/openblas/openblas.mk
new file mode 100644 (file)
index 0000000..d07d09d
--- /dev/null
+++ b/package/openblas/openblas.mk
@@ -0,0 +1,55 @@
+################################################################################
+#
+# openblas
+#
+################################################################################
+
+OPENBLAS_VERSION = f04af36ad0e85b64f12a7c38095383192cc52345
+OPENBLAS_SITE = $(call github,xianyi,OpenBLAS,$(OPENBLAS_VERSION))
+OPENBLAS_LICENSE = BSD-3c
+OPENBLAS_LICENSE_FILES = LICENSE
+OPENBLAS_INSTALL_STAGING = YES
+
+# Initialise OpenBLAS make options to $(TARGET_CONFIGURE_OPTS)
+OPENBLAS_MAKE_OPTS = $(TARGET_CONFIGURE_OPTS)
+
+# Enable cross-compiling
+OPENBLAS_MAKE_OPTS += CROSS=1
+
+# Set OpenBLAS target
+OPENBLAS_MAKE_OPTS += TARGET=$(BR2_PACKAGE_OPENBLAS_TARGET)
+
+# Disable fortran by default until we add BR2_TOOLCHAIN_HAS_FORTRAN
+# hidden symbol to our toolchain infrastructure
+OPENBLAS_MAKE_OPTS += ONLY_CBLAS=1
+
+# Enable/Disable multi-threading (not for static-only since it uses dlfcn.h)
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS):$(BR2_STATIC_LIBS),y:)
+OPENBLAS_MAKE_OPTS += USE_THREAD=1
+else
+OPENBLAS_MAKE_OPTS += USE_THREAD=0
+endif
+
+# Static-only/Shared-only toggle
+ifeq ($(BR2_STATIC_LIBS),y)
+OPENBLAS_MAKE_OPTS += NO_SHARED=1
+else ifeq ($(BR2_SHARED_LIBS),y)
+OPENBLAS_MAKE_OPTS += NO_STATIC=1
+endif
+
+define OPENBLAS_BUILD_CMDS
+       $(TARGET_MAKE_ENV) $(MAKE) $(OPENBLAS_MAKE_OPTS) \
+               -C $(@D)
+endef
+
+define OPENBLAS_INSTALL_STAGING_CMDS
+       $(TARGET_MAKE_ENV) $(MAKE) $(OPENBLAS_MAKE_OPTS) \
+               -C $(@D) install PREFIX=$(STAGING_DIR)/usr
+endef
+
+define OPENBLAS_INSTALL_TARGET_CMDS
+       $(TARGET_MAKE_ENV) $(MAKE) $(OPENBLAS_MAKE_OPTS) \
+               -C $(@D) install PREFIX=$(TARGET_DIR)/usr
+endef
+
+$(eval $(generic-package))