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Paul McCarthy authoredPaul McCarthy authored
buildSettings.mk 8.47 KiB
# This file defines standard commands and compiler flags. It is included
# before vars.mk, which uses the variables defined here to construct the
# final compiler flag variables that are used in C/C++ compilation.
#
# Final values for CFLAGS, CPPFLAGS, CXXFLAGS, LDFLAGS, NVCCFLAGS, and
# NVCCLDFLAGS (including include/library search paths) are constructed in
# vars.mk,
# get system type (Darwin, Linux)
SYSTYPE := $(shell uname -s)
#####################################################################
#
# Standard commands
#
#####################################################################
SHELL ?= /bin/sh
RM ?= /bin/rm
CP ?= /bin/cp
MV ?= /bin/mv
CHMOD ?= /bin/chmod
MKDIR ?= /bin/mkdir
INSTALL ?= install -p
TCLSH ?= ${FSLDIR}/bin/fsltclsh
#####################################################################
#
# Architecture-independent compiler/linker flags
#
#####################################################################
# Platform independent compiler/linker options may be added to
# the following ARCH* variables. These variables are *always*
# added to compiler calls, for all platforms.
#
# The ARCH* variables here are added to the end of the final
# FLAGS variables, which means that any options specified here
# will typically take precedence over options provided by the
# environment.
# Compiler flags for C projects.
# - C99 as minimum source compatibility standard
# - Position independent code essential for
# compiling/using shared libraries
ARCHCFLAGS = -std=c99 -fPIC
# Compiler flags for C++ projects.
# - C++17 as minimum source compatibility standard
# - Position independent code essential for
# compiling/using shared libraries
ARCHCXXFLAGS = -std=c++17 -fPIC
# Preprocesor flags for C/C++ projects.
ARCHCPPFLAGS =
# Linker flags for all projects
ARCHLDFLAGS =
# Libraries available for linking by all projects.
ARCHLIBS =
# Compiler flags for CUDA projects.
# - Define ARMA_ALLOW_FAKE_GCC, otherwise nvcc-compiled
# armadillo structures may have different byte-alignment
# to equivalent g++-compiled structures (see
# include/armadillo_bits/compiler_setup.hpp)
#
# - Set -std=c++14. This is the newest C++ standard
# supported by nvcc for CUDA<11.0.ARCHNVCCFLAGS = -DARMA_ALLOW_FAKE_GCC -std=c++14
# Linker flags for CUDA projects.
ARCHNVCCLDFLAGS =
#####################################################################
#
# Default compiler commands, flags and basic external libraries for
# macOS.
#
#####################################################################
# Drop -rpath flags from LDFLAGS if it is set in
# the environment - we explicitly add them below
# such that executables will be able to find libs
# in $(pwd), $FSLDEVDIR/lib, and $FSLDIR/lib *in
# that order*. This is so that executables
# located in the project source dir can be
# executed in place with sensible behaviour (i.e.
# any shared libs located in the same dir will
# take precedence over libs of the same name in
# $FSLDIR/lib/).
#
# Fortunately -Wl,-rpath is used for both g++ and
# clang, so we can cover both with one substitution.
COMMA := ,
_LDFLAGS := $(patsubst -Wl${COMMA}-rpath%,,${LDFLAGS})
LDFLAGS = ${_LDFLAGS}
# Also drop -L options from LDFLAGS if set in the
# environment, as we want to set our own
# precedence rules as above ($FSLDEVDIR > $FSLDIR)
# - this is done in vars.mk
_LDFLAGS := $(patsubst -L%,,${_LDFLAGS})
LDFLAGS = ${_LDFLAGS}
ifeq ($(SYSTYPE), Darwin)
# CC, CXX, CFLAGS, CXXFLAGS, and LDFLAGS
# may be overridden by the environment.
CC ?= clang
CXX ?= clang++
CFLAGS ?= -arch x86_64 -Wall -pedantic
CXXFLAGS ?= -arch x86_64 -Wall -pedantic
LDFLAGS += -Wl,-rpath,"@executable_path/"
# Only add FSLDEVDIR if different to FSLDIR
ifneq (${FSLDEVDIR}, ${FSLDIR})
LDFLAGS += -Wl,-rpath,"${FSLDEVDIR}/lib"
endif
LDFLAGS += -Wl,-rpath,"${FSLDIR}/lib"
ARCHLIBS += -llapack -lblas -lz -lm
# Old versions of libxml++ (which is used by
# ciftilib) use std::auto_ptr, which has been
# removed from the llvm C++17 implementation.
# Adding this flag is a hack which allows us
# to continue to use std::auto_ptr.
ARCHCPPFLAGS += -D_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
# On macOS, we need to change the install
# name of shared libs so that they can be
# looked up according to the rpath of
# executables that depend on them. Note
# that we give shared libs a suffix of
# .so (not .dylib) on both linux and
# macOS.
%.so : LDFLAGS += -Wl,-install_name,@rpath/$@
endif
#####################################################################
#
# Default compiler commands, flags and basic external libraries for
# Linux.
#
#####################################################################
ifeq ($(SYSTYPE), Linux)
# CC, CXX, CFLAGS, CXXFLAGS, and LDFLAGS
# may be overridden by the environment.
CC ?= gcc
CXX ?= g++
CFLAGS ?= -fexpensive-optimizations \
-Wall -pedantic -Wno-long-long
CXXFLAGS ?= -fexpensive-optimizations \
-Wall -pedantic -Wno-long-long
LDFLAGS += -Wl,-rpath,'$$ORIGIN' \
-Wl,-rpath-link,'$$ORIGIN'
# Only add FSLDEVDIR if different to FSLDIR
ifneq (${FSLDEVDIR}, ${FSLDIR})
LDFLAGS += -Wl,-rpath,'${FSLDEVDIR}/lib' \
-Wl,-rpath-link,'${FSLDEVDIR}/lib'
endif
LDFLAGS += -Wl,-rpath,'${FSLDIR}/lib' \
-Wl,-rpath-link,'${FSLDIR}/lib'
# Libraries which are implicitly available
# to all projects for linking
ARCHCXXFLAGS += -pthread
ARCHLIBS += -lopenblas -lz -lm
endif
#####################################################################
#
# Default compiler commands, flags, and basic external libraries for
# CUDA projects. nvcc must be on the $PATH, or $NVCC must be set.
#
#####################################################################
NVCC ?= $(shell which nvcc)
ifneq (${NVCC}, )
# NVCC, GENCODEFLAGS, NVCCFLAGS, NVCCLDFLAGS,
# and CUDA_STATIC may be specified/overridden
# by the environment.
CUDA_HOME = $(shell dirname ${NVCC})/../
CUDA_VER = $(shell ${NVCC} --version | grep -Po "release \K[0-9\.]+")
GENCODEFLAGS ?= $(shell ${FSLCONFDIR}/supportedGencodes.sh ${CUDA_VER})
# We use nvcc to compile .cu files, g++ to
# compile .cc/.cpp files, and nvcc to perform
# the final linking. So we need to manage
# compiler/linker flags carefully.
# CUDACXXFLAGS is to be used when compiling
# .cc/.cpp files which are to be linked into
# CUDA applications - CUDA-specific include
# paths, and any USRNVCCFLAGS are added to it.
#
# In contrast, NVCCFLAGS is used for compiling
# .cu files (and final linking) - it contains
# nvcc-specific options.
CUDACXXFLAGS ?= -I${CUDA_HOME}/include
# We specify the compiler to use with -ccbin, as
# nvcc might otherwise naively call "g++", rather
# than honouring $(CXX). We specifically use
# "-ccbin" rather than "--compiler-bindir" here,
# because the conda-forge nvcc wrapper checks for
# -ccbin, and adds its own if not present.
NVCCFLAGS ?= ${GENCODEFLAGS} \ -ccbin $(CXX) \
-I${CUDA_HOME}/include
NVCCLDFLAGS ?= -L${CUDA_HOME}/lib \
-L${CUDA_HOME}/lib64 \
-L${CUDA_HOME}/lib/stubs \
-L${CUDA_HOME}/lib64/stubs
# Link CUDA libraries statically, if compilation
# was invoked with "make CUDA_STATIC=1".
# Compiler / linker options vary depending on the
# CUDA version
_CUDALIBS = -lcuda
ifdef CUDA_STATIC
# The cuda/cudart/cudadevrt libs are handled by nvcc.
# Other components of the CUDA toolkit are provided
# as both dynamic and static libraries. "_CUDALIBS"
# is what is used to construct the final NVCCLDFLAGS
# (see vars.mk).
#
# --cudadevrt was added in CUDA/nvcc 10.*
#
# In CUDA 10.* and newer, cublas_static requires
# cublas_Lt_static, in addition to culibos
ifeq ($(patsubst 9.%,,${CUDA_VER}),)
CUBLAS_STATIC = -lcublas_static -lculibos
NVCCLDFLAGS += --cudart=static
else
CUBLAS_STATIC = -lcublas_static -lcublasLt_static -lculibos
NVCCLDFLAGS += --cudart=static --cudadevrt=static
endif
# Other CUDA toolkit components will
# be added here on an as-needed basis.
_CUDALIBS += $(subst -lcublas,${CUBLAS_STATIC}, \
$(subst -lcurand,-lcurand_static,${CUDALIBS}))
else
ifeq ($(patsubst 9.%,,${CUDA_VER}),)
NVCCLDFLAGS += --cudart=shared
else
NVCCLDFLAGS += --cudart=shared --cudadevrt=static
endif
_CUDALIBS += ${CUDALIBS}
endif
endif