Commit 3def834c authored by Amelia Blachuciak's avatar Amelia Blachuciak Committed by Jim Harris
Browse files

make: add cross-compilation support 



There might be a need for user to cross-compile SPDK for other platforms
than native. Since DPDK supports cross-compilation already, only enablement of
cross-compilation for SPDK is missing. This patch aims to provide the user
with additional option to configure script that works similar to what DPDK already provides.

To enable cross-compilation run ./configure.sh with additional --cross-prefix parameter.
The parameter should work in similar manner to DPDK CROSS parameter
and specifies prefix of cross-compiler defined in PATH variable.

Note: To cross-compile, toolchain must have SPDK dependencies such as e.g. Libaio.

Signed-off-by: default avatarAmelia Blachuciak <amelia.blachuciak@intel.com>
Change-Id: Ia7cb879d39d624552cad1af98a563070ea7676b2
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460977


Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarDarek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 1a56982d

CONFIG

+3 −0
Original line number Diff line number Diff line
@@ -37,6 +37,9 @@ CONFIG_PREFIX="/usr/local" 
# Target architecture

CONFIG_ARCH=native



# Prefix for cross compilation

CONFIG_CROSS_PREFIX=



# Build with debug logging. Turn off for performance testing and normal usage

CONFIG_DEBUG=n

configure

+7 −1
Original line number Diff line number Diff line
@@ -18,6 +18,9 @@ function usage() 
	echo " --prefix=path             Configure installation prefix (default: /usr/local)"

	echo " --target-arch=arch        Target build architecture. Must be a valid GNU arch. Default: native"

	echo ""

	echo " --cross-prefix=prefix     Prefix for cross compilation (default: none)"

	echo "                           example: aarch64-linux-gnu"

	echo ""

	echo " --enable-debug            Configure for debug builds"

	echo " --enable-log-bt           Enable support of backtrace printing in SPDK logs (requires libunwind)."

	echo " --enable-werror           Treat compiler warnings as errors"
@@ -124,6 +127,9 @@ for i in "$@"; do 
		--target-arch=*)

			CONFIG[ARCH]="${i#*=}"

			;;

		--cross-prefix=*)

			CONFIG[CROSS_PREFIX]="${i#*=}"

			;;

		--enable-debug)

			CONFIG[DEBUG]=y

			;;
@@ -342,7 +348,7 @@ for i in "$@"; do 
done



# Detect the compiler toolchain

scripts/detect_cc.sh --cc="$CC" --cxx="$CXX" --lto="${CONFIG[LTO]}" --ld="$LD" > mk/cc.mk

scripts/detect_cc.sh --cc="$CC" --cxx="$CXX" --lto="${CONFIG[LTO]}" --ld="$LD" --cross-prefix="${CONFIG[CROSS_PREFIX]}"  > mk/cc.mk



CC=$(cat mk/cc.mk | grep "CC=" | cut -d "=" -f 2)

CC_TYPE=$(cat mk/cc.mk | grep "CC_TYPE=" | cut -d "=" -f 2)

dpdkbuild/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -93,6 +93,10 @@ else 
DPDK_CONFIG := $(TARGET_MACHINE)-native

endif



ifneq ($(CONFIG_CROSS_PREFIX),)

DPDK_OPTS += CROSS=$(CONFIG_CROSS_PREFIX)-

endif



ifeq ($(OS),Linux)

DPDK_CONFIG := $(DPDK_CONFIG)-linuxapp

NPROC := $(shell nproc)