#--------------------------------------------------------------------
# build process
#
#



# ------------------------------------------------------------------------------
# programs
#
# Users should make all changes in make.inc
# It should not be necesary to change anything in here.

include make.inc

# --------------------
# configuration

# should MAGMA be built on CUDA (NVIDIA only) or HIP (AMD or NVIDIA)
# enter 'cuda' or 'hip' respectively
BACKEND     ?= cuda

# set these to their real paths
CUDADIR     ?= /usr/local/cuda
ROCM_PATH   ?= /opt/rocm

# require either hip or cuda
ifeq (,$(findstring $(BACKEND),"hip cuda"))
    $(error "'BACKEND' should be either 'cuda' or 'hip' (got '$(BACKEND)')")
endif

# --------------------
# programs

# set compilers
CC          ?= gcc
CXX         ?= g++
FORT        ?= gfortran
HIPCC       ?= hipcc
NVCC        ?= nvcc
DEVCC       ?= NONE

# Configuration variables
HAVE_CUDA  =
HAVE_HIP   =
CUDA_ARCH_MIN =

# CMake.src file, which depends on the backend
CMAKESRC     = CMake.src.$(BACKEND)

# set from 'BACKEND'
ifeq ($(BACKEND),cuda)
    DEVCC = $(NVCC)
	HAVE_CUDA = 1

else ifeq ($(BACKEND),hip)
    DEVCC = $(HIPCC)
	HAVE_HIP = 1

    # if we are using HIP, make sure generated sources are up to date
    # Technically, this 'recursive' make which we don't like to do, but also this is a simple solution
    #   that allows that file to handle all code generation
    # Another reason is that I don't want to flood the namespace (for example, that file also
    #   defines an 'all' and 'clean' target as phonies)
    # So, in the future that whole file may be integrated, but for now this seems simplest
	# Detect number of jobs here, so it runs at an appropriate speed
    MAKE_PID := $(shell echo $$PPID)
    JOB_FLAG := $(filter -j%, $(subst -j ,-j,$(shell ps T | grep "^\s*$(MAKE_PID).*$(MAKE)")))
    JOBS     := $(subst -j,,$(JOB_FLAG))
    tmp := $(shell $(MAKE) -j$(JOBS) -f make.gen.hipMAGMA 1>&2)
else
    $(warning BACKEND: $(BACKEND) not recognized)
endif

# and utilities
ARCH        ?= ar
ARCHFLAGS   ?= cr
RANLIB      ?= ranlib


# --------------------
# flags/settings

# Use -fPIC to make shared (.so) and static (.a) library;
# can be commented out if making only static library.
FPIC        ?= -fPIC

# now, generate our flags
CFLAGS      ?= -O3 $(FPIC) -DNDEBUG -DADD_ -Wall -fopenmp -std=c99
CXXFLAGS    ?= -O3 $(FPIC) -DNDEBUG -DADD_ -Wall -fopenmp -std=c++14
FFLAGS      ?= -O3 $(FPIC) -DNDEBUG -DADD_ -Wall -Wno-unused-dummy-argument
F90FLAGS    ?= -O3 $(FPIC) -DNDEBUG -DADD_ -Wall -Wno-unused-dummy-argument -x f95-cpp-input
LDFLAGS     ?=     $(FPIC)                       -fopenmp

ifndef $(and DEVCCFLAGS, NVCCFLAGS)
    DEVCCFLAGS  ?= -O3         -DNDEBUG -DADD_
endif
# DEVCCFLAGS are populated later in `backend-specific`

# Extension for object files: o for unix, obj for Windows?
o_ext      ?= o

# where to install to?
prefix     ?= /usr/local/magma

# ------------------------------------------------------------------------------
# MAGMA-specific programs & flags

ifeq ($(blas_fix),1)
    # prepend -lblas_fix to LIB (it must come before LAPACK library/framework)
    LIB := -lblas_fix $(LIB)
endif

LIBS       = $(LIBDIR) $(LIB)

# preprocessor flags. See below for MAGMA_INC
CPPFLAGS   = $(INC) $(MAGMA_INC)

# where testers look for MAGMA libraries
RPATH      =

codegen    = ./tools/codegen.py


ifeq ($(BACKEND),cuda)

	# Add legacy flags
	DEVCCFLAGS += $(NVCCFLAGS)

	# ------------------------------------------------------------------------------
	# NVCC options for the different cards
	# First, add smXX for architecture names
	# Internal CUDA architectures we support
	# TODO: Filter on regex to discard the named architectures?
	CUDA_ARCH_ := $(GPU_TARGET)
	ifneq ($(findstring Kepler, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_30
		CUDA_ARCH_ += sm_35
	endif
	ifneq ($(findstring Maxwell, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_50
	endif
	ifneq ($(findstring Pascal, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_60
	endif
	ifneq ($(findstring Volta, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_70
	endif
	ifneq ($(findstring Turing, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_75
	endif
	ifneq ($(findstring Ampere, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_80
	endif
	ifneq ($(findstring Ada, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_89
	endif
	ifneq ($(findstring Hopper, $(GPU_TARGET)),)
		CUDA_ARCH_ += sm_90
		CUDA_ARCH_ += sm_90a
	endif

	# Remember to add to CMakeLists.txt too!

	# Next, add compile options for specific smXX
	# sm_xx is binary, compute_xx is PTX for forward compatability
	# MIN_ARCH is lowest requested version
	#          Use it ONLY in magma_print_environment; elsewhere use __CUDA_ARCH__ or magma_getdevice_arch()
	# NV_SM    accumulates sm_xx for all requested versions
	# NV_COMP  is compute_xx for highest requested version
	#
	# See also $(info compile for ...) in Makefile


    CUDA_ARCH_UNKNOWN_ = $(filter-out sm_% Kepler Maxwell Pascal Volta Turing Ampere Ada Hopper, $(CUDA_ARCH_))
    ifneq ($(CUDA_ARCH_UNKNOWN_),)
        $(error ERROR: unknown `$(CUDA_ARCH_UNKNOWN_)` in GPU_TARGET)
    endif

    # Now, sort sm's
    SMS      := $(patsubst sm_%,%,$(filter sm_%, $(CUDA_ARCH_)))
    SMS      := $(shell printf "%s\n" $(SMS) | sort -n)

    # code=sm_XX is binary, code=compute_XX is PTX
    GENCODE_SM      = -gencode arch=compute_$(sm),code=sm_$(sm)
    GENCODE_COMP    = -gencode arch=compute_$(sm),code=compute_$(sm)

    # Get gencode options for all sm_XX in cuda_arch_.
    NV_SM    := $(foreach sm,$(SMS),$(GENCODE_SM))
    NV_COMP  := $(foreach sm,$(SMS),$(GENCODE_COMP))

    # Check for empty
    ifeq ($(NV_SM),)
        $(error ERROR: unknown `GPU_TARGET=$(GPU_TARGET)`. Set cuda_arch to one or more of Kepler, Maxwell, Pascal, Volta, Turing, Ampere, Ada, Hopper, or valid sm_XX from nvcc -h)
    else
        # Get last option (last 2 words) of nv_compute.
        nwords := $(words $(NV_COMP))
        nwords_1 := $(shell expr $(nwords) - 1)
        NV_COMP_LAST := $(wordlist $(nwords_1), $(nwords), $(NV_COMP))
    endif

    # Use all sm_XX (binary), and the last compute_XX (PTX) for forward compatibility.
    DEVCCFLAGS += $(NV_SM) $(NV_COMP_LAST)
    LIBS += -lcublas -lcudart

    # Get first (minimum) architecture
    # Append zero, so it is comparable to '__CUDA_ARCH__'
    CUDA_ARCH := $(SMS)
    CUDA_ARCH_MIN := $(word 1, $(SMS))0
    ifeq ($(CUDA_ARCH_MIN),)
        $(error GPU_TARGET, currently $(GPU_TARGET), must contain one or more of Fermi, Kepler, Maxwell, Pascal, Volta, Turing, Ampere, Ada, Hopper, or valid sm_[0-9][0-9]. Please edit your make.inc file)
    endif
else ifeq ($(BACKEND),hip)

	# ------------------------------------------------------------------------------
	# hipcc backend
	# Source: https://llvm.org/docs/AMDGPUUsage.html#target-triples

	# Filter our human readable names and replace with numeric names
    HIP_ARCH_ := $(GPU_TARGET)
	ifneq ($(findstring kaveri, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx700
	endif
	ifneq ($(findstring hawaii, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx701
	endif
	ifneq ($(findstring kabini, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx703
	endif
	ifneq ($(findstring mullins, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx703
	endif
	ifneq ($(findstring bonaire, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx704
	endif
	ifneq ($(findstring carrizo, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx801
	endif
	ifneq ($(findstring iceland, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx802
	endif
	ifneq ($(findstring tonga, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx802
	endif
	ifneq ($(findstring fiji, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx803
	endif
	# These are in the documentation, and the leftmost column *seems* like a continuation
	#   of gfx803
	ifneq ($(findstring polaris10, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx803
	endif
	ifneq ($(findstring polaris11, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx803
	endif

	ifneq ($(findstring tongapro, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx805
	endif
	ifneq ($(findstring stoney, $(GPU_TARGET)),)
		HIP_ARCH_ += gfx810
	endif

    ## Suggestion by Mark (from SLATE)
    # Valid architecture numbers
    # TODO: remove veryold ones?
    VALID_GFXS = 600 601 602 700 701 702 703 704 705 801 802 803 805 810 900 902 904 906 908 909 90a 940 941 942 90c 1010 1011 1012 1030 1031 1032 1033


	# Generated GFX option
    TARGET_GFX      = --offload-arch=gfx$(gfx)

    # Get gencode options for all sm_XX in cuda_arch_.
    AMD_GFX    := $(filter %, $(foreach gfx, $(VALID_GFXS),$(if $(findstring gfx$(gfx), $(HIP_ARCH_)),$(TARGET_GFX))))

    ifeq ($(AMD_GFX),)
        $(error GPU_TARGET, currently $(GPU_TARGET), must contain one or more of the targets for AMDGPUs (https://llvm.org/docs/AMDGPUUsage.html#target-triples), or valid gfx[0-9][0-9][0-9][0-9]?. Please edit your make.inc file)
    else
    endif

    # Use all sm_XX (binary), and the last compute_XX (PTX) for forward compatibility.
    DEVCCFLAGS += $(AMD_GFX)

    # Get first (minimum) architecture
	# NOTE: Not so useful for HIP
    #MIN_ARCH := $(wordlist 1, 1, $(foreach gfx, $(VALID_GFXS),$(if $(findstring gfx$(gfx), $(HIP_ARCH_)),$(gfx))))
	#ifeq ($(MIN_ARCH),)
	#	$(error GPU_TARGET, currently $(GPU_TARGET), did not contain a minimum arch)
	#endif

endif


# ------------------------------------------------------------------------------
# Define the pointer size for fortran compilation
# If there's an issue compiling sizeptr, assume 8 byte (64 bit) pointers
PTRFILE = control/sizeptr.c
PTROBJ  = control/sizeptr.$(o_ext)
PTREXEC = control/sizeptr
PTRSIZE = $(shell if [ -x $(PTREXEC) ]; then $(PTREXEC); else echo 8; fi)
PTROPT  = -Dmagma_devptr_t="integer(kind=$(PTRSIZE))"

$(PTREXEC): $(PTROBJ)
	-$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $<
	touch $@

$(PTROBJ): $(PTRFILE)
	-$(CC) $(CFLAGS) -c -o $@ $<
	touch $@


# ------------------------------------------------------------------------------
# include sub-directories

# variables that multiple sub-directories add to.
# these MUST be := defined, not = defined, for $(cdir) to work.
hdr                  :=
libmagma_src         :=
libmagma_dynamic_src :=
testing_src          :=
libsparse_src        :=
libsparse_dynamic_src:=
sparse_testing_src   :=

subdirs := \
	blas_fix            \
	control             \
	include             \
	src                 \
	testing/lin         \

# the directory in which the MAGMA sparse source is located
# change to sparse_hip for hipified sources
# right now, just use old one so the dense section still builds

ifeq ($(BACKEND),cuda)
	SPARSE_DIR ?= sparse
	subdirs += interface_cuda
	subdirs += testing
	subdirs += magmablas

    # add all sparse folders
	# Don't do it for HIP yet
    subdirs += $(SPARSE_DIR) $(SPARSE_DIR)/blas $(SPARSE_DIR)/control $(SPARSE_DIR)/include $(SPARSE_DIR)/src $(SPARSE_DIR)/testing

else ifeq ($(BACKEND),hip)
	SPARSE_DIR ?= ./sparse_hip
	subdirs += interface_hip
	subdirs += magmablas_hip
	subdirs += testing

    subdirs += $(SPARSE_DIR) $(SPARSE_DIR)/blas $(SPARSE_DIR)/control $(SPARSE_DIR)/include $(SPARSE_DIR)/src $(SPARSE_DIR)/testing

endif




Makefiles := $(addsuffix /Makefile.src, $(subdirs))

#$(info $$Makefiles=$(Makefiles))

include $(Makefiles)

-include Makefile.internal
-include Makefile.local
-include Makefile.gen.$(BACKEND)

#$(info $$libmagma_src=$(libmagma_src))
#$(info $$libmagma_all=$(libmagma_all))

# ------------------------------------------------------------------------------
# objects

ifeq ($(FORT),)
    liblapacktest_all2 := $(filter     %_no_fortran.cpp, $(liblapacktest_all))
else
    liblapacktest_all2 := $(filter-out %_no_fortran.cpp, $(liblapacktest_all))
endif

ifeq ($(FORT),)
    libmagma_all := $(filter-out %.f %.f90 %.F90, $(libmagma_all))
    testing_all  := $(filter-out %.f %.f90 %.F90, $(testing_all))
endif

libmagma_obj       := $(addsuffix .$(o_ext), $(basename $(libmagma_all)))
libblas_fix_obj    := $(addsuffix .$(o_ext), $(basename $(libblas_fix_src)))
libtest_obj        := $(addsuffix .$(o_ext), $(basename $(libtest_all)))
liblapacktest_obj  := $(addsuffix .$(o_ext), $(basename $(liblapacktest_all2)))
testing_obj        := $(addsuffix .$(o_ext), $(basename $(testing_all)))
libsparse_obj      := $(addsuffix .$(o_ext), $(basename $(libsparse_all)))
sparse_testing_obj := $(addsuffix .$(o_ext), $(basename $(sparse_testing_all)))

ifneq ($(libmagma_dynamic_src),)
libmagma_dynamic_obj := $(addsuffix .$(o_ext),      $(basename $(libmagma_dynamic_all)))
  ifeq ($(BACKEND),cuda)
    libmagma_dlink_obj   := magmablas/dynamic.link.o
  else ifeq ($(BACKEND),hip)
    libmagma_dlink_obj   := magmablas_hip/dynamic.link.o
  endif

libmagma_obj         += $(libmagma_dynamic_obj) $(libmagma_dlink_obj)
endif

ifneq ($(libsparse_dynamic_src),)
libsparse_dynamic_obj := $(addsuffix .$(o_ext),      $(basename $(libsparse_dynamic_all)))

ifeq ($(BACKEND),cuda)
  libsparse_dlink_obj   := $(SPARSE_DIR)/blas/dynamic.link.o
else ifeq ($(BACKEND),hip)
  # No dynamic parallelism support in HIP
  #libsparse_dlink_obj   := $(SPARSE_DIR)/blas/dynamic.link.o
endif


libsparse_obj         += $(libsparse_dynamic_obj) $(libsparse_dlink_obj)
endif

deps :=
deps += $(addsuffix .d, $(basename $(libmagma_all)))
deps += $(addsuffix .d, $(basename $(libblas_fix_src)))
deps += $(addsuffix .d, $(basename $(libtest_all)))
deps += $(addsuffix .d, $(basename $(lapacktest_all2)))
deps += $(addsuffix .d, $(basename $(testing_all)))
deps += $(addsuffix .d, $(basename $(libsparse_all)))
deps += $(addsuffix .d, $(basename $(sparse_testing_all)))

# headers must exist before compiling objects, but we don't want to require
# re-compiling the whole library for every minor header change,
# so use order-only prerequisite (after "|").
$(libmagma_obj):       | $(header_all)
$(libtest_obj):        | $(header_all)
$(testing_obj):        | $(header_all)
$(libsparse_obj):      | $(header_all)
$(sparse_testing_obj): | $(header_all)

# changes to testings.h require re-compiling, e.g., if magma_opts changes
$(testing_obj):        testing/testings.h
$(libtest_obj):        testing/testings.h
$(sparse_testing_obj): testing/testings.h

# this allows "make force=force" to force re-compiling
$(libmagma_obj):       $(force)
$(libblas_fix_obj):    $(force)
$(libtest_obj):        $(force)
$(liblapacktest_obj):  $(force)
$(testing_obj):        $(force)
$(libsparse_obj):      $(force)
$(sparse_testing_obj): $(force)

force: ;


# ----- include paths
MAGMA_INC  = -I./include -I./testing

$(libmagma_obj):       MAGMA_INC += -I./control
$(libtest_obj):        MAGMA_INC += -I./testing
$(testing_obj):        MAGMA_INC += -I./testing

ifeq ($(BACKEND),cuda)
$(libsparse_obj):      MAGMA_INC += -I./control -I./magmablas -I./sparse/include -I./sparse/control
$(sparse_testing_obj): MAGMA_INC += -I./sparse/include -I./sparse/control -I./testing
else ifeq ($(BACKEND),hip)
$(libsparse_obj):      MAGMA_INC += -I./control -I./magmablas_hip -I$(SPARSE_DIR)/include -I$(SPARSE_DIR)/control
$(sparse_testing_obj): MAGMA_INC += -I$(SPARSE_DIR)/include -I$(SPARSE_DIR)/control -I./testing
endif


# ----- headers

# Configuration file
CONFIG     := include/magma_config.h

# add to a list of all headers
header_all += $(CONFIG)
# add to list of generated files
libmagma_generated += $(CONFIG)

# Dependencies of the config
CONFIGDEPS := include/magma_config.h.in Makefile make.inc

# All flags, for searching
ALLFLAGS := $(CFLAGS) $(CXXFLAGS) $(DEVCCFLAGS)

# Configuration header
ifneq (,$(HAVE_CUDA))

$(CONFIG): $(CONFIGDEPS)
	cp $< $@
	sed -i -e 's/#cmakedefine MAGMA_CUDA_ARCH "@MAGMA_CUDA_ARCH@"/#define MAGMA_CUDA_ARCH "$(CUDA_ARCH)"/g' $@
	sed -i -e 's/#cmakedefine MAGMA_CUDA_ARCH_MIN @MAGMA_CUDA_ARCH_MIN@/#define MAGMA_CUDA_ARCH_MIN $(CUDA_ARCH_MIN)/g' $@
	sed -i -e 's/#cmakedefine MAGMA_HAVE_CUDA/#define MAGMA_HAVE_CUDA/g' $@
	sed -i -e 's/#cmakedefine MAGMA_HAVE_HIP/#undef MAGMA_HAVE_HIP/g' $@

else

$(CONFIG): $(CONFIGDEPS)
	cp $< $@
	sed -i -e 's/#cmakedefine MAGMA_CUDA_ARCH "@MAGMA_CUDA_ARCH@"/#define MAGMA_CUDA_ARCH "$(CUDA_ARCH)"/g' $@
	sed -i -e 's/#cmakedefine MAGMA_CUDA_ARCH_MIN @MAGMA_CUDA_ARCH_MIN@/#define MAGMA_CUDA_ARCH_MIN $(CUDA_ARCH_MIN)/g' $@
	sed -i -e 's/#cmakedefine MAGMA_HAVE_CUDA/#undef MAGMA_HAVE_CUDA/g' $@
	sed -i -e 's/#cmakedefine MAGMA_HAVE_HIP/#define MAGMA_HAVE_HIP/g' $@

endif


# to test that headers are self-contained,
# pre-compile each into a header.h.gch file using "g++ ... -c header.h"
header_gch := $(addsuffix .gch, $(filter-out %.cuh, $(header_all)))

test_headers: $(header_gch)

%.h.gch: %.h
	$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<




# ----- libraries
libmagma_a      := lib/libmagma.a
libmagma_so     := lib/libmagma.so
libblas_fix_a   := lib/libblas_fix.a
libtest_a       := testing/libtest.a
liblapacktest_a := testing/lin/liblapacktest.a
libsparse_a     := lib/libmagma_sparse.a
libsparse_so    := lib/libmagma_sparse.so


# static libraries
libs_a := \
	$(libmagma_a)		\
	$(libtest_a)		\
	$(liblapacktest_a)	\
	$(libblas_fix_a)	\
	$(libsparse_a)		\

# shared libraries
libs_so := \
	$(libmagma_so)		\
	$(libsparse_so)		\

#$(info $$libmagma_obj=$(libmagma_obj))

# add objects to libraries
$(libmagma_a):      $(libmagma_obj)
$(libmagma_so):     $(libmagma_obj)
$(libblas_fix_a):   $(libblas_fix_obj)
$(libtest_a):       $(libtest_obj)
$(liblapacktest_a): $(liblapacktest_obj)
$(libsparse_a):     $(libsparse_obj)
$(libsparse_so):    $(libsparse_obj)



# sparse requires libmagma
$(libsparse_so): | $(libmagma_so)


# ----- testers
testing_c_src := $(filter %.c %.cpp,       $(testing_all))
testing_f_src := $(filter %.f %.f90 %.F90, $(testing_all))
testers       := $(basename $(testing_c_src))
testers_f     := $(basename $(testing_f_src))

sparse_testers := $(basename $(sparse_testing_all))

# depend on static libraries
# see below for libmagma, which is either static or shared
$(testers):        $(libtest_a) $(liblapacktest_a)
$(testers_f):      $(libtest_a) $(liblapacktest_a)
$(sparse_testers): $(libtest_a)  # doesn't use liblapacktest

# ----- blas_fix
# if using blas_fix (e.g., on MacOS), libmagma requires libblas_fix
ifeq ($(blas_fix),1)
    $(libmagma_a):     | $(libblas_fix_a)
    $(libmagma_so):    | $(libblas_fix_a)
    $(testers):        | $(libblas_fix_a)
    $(testers_f):      | $(libblas_fix_a)
    $(sparse_testers): | $(libblas_fix_a)
endif


# ------------------------------------------------------------------------------
# MacOS (darwin) needs shared library's path set
# $OSTYPE may not be exported from the shell, so echo it
ostype = ${shell echo $${OSTYPE}}
ifneq ($(findstring darwin, ${ostype}),)
    $(libmagma_so):  LDFLAGS += -install_name @rpath/$(notdir $(libmagma_so))
    $(libsparse_so): LDFLAGS += -install_name @rpath/$(notdir $(libsparse_so))
endif


# ------------------------------------------------------------------------------
# targets

.PHONY: all lib static shared clean test dense sparse docs

.DEFAULT_GOAL := all

all: dense sparse

dense: lib test

sparse: sparse-lib sparse-test

# lib defined below in shared libraries, depending on fPIC

test: testing

testers_f: $(testers_f)

sparse-test: $(SPARSE_DIR)/testing
sparse-testing: $(SPARSE_DIR)/testing

docs:
	${MAKE} -C docs

# cleangen is defined in Makefile.gen; cleanall also does cleanmake in Makefile.internal
cleanall: clean cleangen

# TODO: should this do all $(subdirs) clean?
clean: lib/clean testing/clean
	-rm -f $(deps)


# ------------------------------------------------------------------------------
# shared libraries

# check whether all FLAGS have -fPIC
have_fpic = $(and $(findstring -fPIC, $(CFLAGS)),   \
                  $(findstring -fPIC, $(CXXFLAGS)), \
                  $(findstring -fPIC, $(FFLAGS)),   \
                  $(findstring -fPIC, $(F90FLAGS)), \
                  $(findstring -fPIC, $(DEVCCFLAGS)))

# --------------------
# if all flags have -fPIC: compile shared & static
ifneq ($(have_fpic),)

    lib: static shared

    sparse-lib: sparse-static sparse-shared

    shared: $(libmagma_so)

    sparse-shared: $(libsparse_so)

    # as a shared library, changing libmagma.so does NOT require re-linking testers,
    # so use order-only prerequisite (after "|").
    $(testers):        | $(libmagma_a) $(libmagma_so)
    $(testers_f):      | $(libmagma_a) $(libmagma_so)
    $(sparse_testers): | $(libmagma_a) $(libmagma_so) $(libsparse_a) $(libsparse_so)

    libs := $(libmagma_a) $(libmagma_so) $(libsparse_a) $(libsparse_so)

# --------------------
# else: some flags are missing -fPIC: compile static only
else

    lib: static

    sparse-lib: sparse-static

    shared:
	@echo "Error: 'make shared' requires CFLAGS, CXXFLAGS, FFLAGS, F90FLAGS, and NVCCFLAGS to have -fPIC."
	@echo "This is now the default in most example make.inc.* files, except atlas."
	@echo "Please edit your make.inc file and uncomment FPIC."
	@echo "After updating make.inc, please 'make clean && make shared && make test'."
	@echo "To compile only a static library, use 'make static'."

    sparse-shared: shared

    # as a static library, changing libmagma.a does require re-linking testers,
    # so use regular prerequisite.
    $(testers):        $(libmagma_a)
    $(testers_f):      $(libmagma_a)
    $(sparse_testers): $(libmagma_a) $(libsparse_a)

    libs := $(libmagma_a) $(libsparse_a)

endif
# --------------------

ifeq ($(blas_fix),1)
    libs += $(libblas_fix_a)
endif


# ------------------------------------------------------------------------------
# static libraries

static: $(libmagma_a)

sparse-static: $(libsparse_a)


# ------------------------------------------------------------------------------
# sub-directory targets

control_obj          := $(filter          control/%.o, $(libmagma_obj))
src_obj              := $(filter              src/%.o, $(libmagma_obj))

sparse_control_obj   := $(filter   $(SPARSE_DIR)/control/%.o, $(libsparse_obj))
sparse_blas_obj      := $(filter      $(SPARSE_DIR)/blas/%.o, $(libsparse_obj))
sparse_src_obj       := $(filter       $(SPARSE_DIR)/src/%.o, $(libsparse_obj))


ifeq ($(BACKEND),cuda)
  interface_cuda_obj   := $(filter   interface_cuda/%.o, $(libmagma_obj))
  magmablas_obj        := $(filter        magmablas/%.o, $(libmagma_obj))
else ifeq ($(BACKEND),hip)
  interface_hip_obj   := $(filter     interface_hip/%.o, $(libmagma_obj))
  magmablas_hip_obj   := $(filter     magmablas_hip/%.o, $(libmagma_obj))
  #$(info $$magmablas_hip_obj=$(magmablas_hip_obj))
endif


# ----------
# sub-directory builds
include:             $(header_all)

blas_fix:            $(libblas_fix_a)

control:             $(control_obj)



ifeq ($(BACKEND),cuda)
	interface_cuda:      $(interface_cuda_obj)
	magmablas:           $(magmablas_obj)
else ifeq ($(BACKEND),hip)
	interface_hip:       $(interface_hip_obj)
	magmablas_hip:       $(magmablas_hip_obj)
endif


src:                 $(src_obj)

testing:             $(testers)

sparse/blas:    $(sparse_blas_obj)

sparse/control: $(sparse_control_obj)

sparse/src:     $(sparse_src_obj)

sparse/testing: $(sparse_testers)
$(SPARSE_DIR)/testing: $(sparse_testers)

run_test: test
	cd testing && ./run_tests.py

# ----------
# sub-directory clean
include/clean:
	-rm -f $(shdr) $(dhdr) $(chdr)

blas_fix/clean:
	-rm -f $(libblas_fix_a) $(libblas_fix_obj)

control/clean:
	-rm -f $(control_obj) include/*.mod control/*.mod

ifeq ($(BACKEND),cuda)
interface_cuda/clean:
	-rm -f $(interface_cuda_obj)

magmablas/clean:
	-rm -f $(magmablas_obj)

else ifeq ($(BACKEND),hip)

interface_hip/clean:
	-rm -f $(interface_hip_obj)

magmablas_hip/clean:
	-rm -f $(magmablas_hip_obj)

endif

src/clean:
	-rm -f $(src_obj)

testing/cleanexe:
	-rm -f $(testers) $(testers_f)

testing/clean: testing/lin/clean
	-rm -f $(testers) $(testers_f) $(testing_obj) \
		$(libtest_a) $(libtest_obj)

testing/lin/clean:
	-rm -f $(liblapacktest_a) $(liblapacktest_obj)

# hmm... what should lib/clean do? just the libraries, not objects?
lib/clean: blas_fix/clean sparse/clean
	-rm -f $(libmagma_a) $(libmagma_so) $(libmagma_obj)

sparse/clean: sparse/testing/clean
	-rm -f $(libsparse_a) $(libsparse_so) $(libsparse_obj)

sparse/blas/clean:
	-rm -f $(sparse_blas_obj)

sparse/control/clean:
	-rm -f $(sparse_control_obj)

sparse/src/clean:
	-rm -f $(sparse_src_obj)

sparse/testing/clean:
	-rm -f $(sparse_testers) $(sparse_testing_obj)


# ------------------------------------------------------------------------------
# rules

.DELETE_ON_ERROR:

.SUFFIXES:

# object file rules

%.$(o_ext): %.f
	$(FORT) $(FFLAGS) -c -o $@ $<

%.$(o_ext): %.f90
	$(FORT) $(F90FLAGS) $(CPPFLAGS) -c -o $@ $<
	-mv $(notdir $(basename $@)).mod include/

%.$(o_ext): %.F90 $(PTREXEC)
	$(FORT) $(F90FLAGS) $(CPPFLAGS) $(PTROPT) -c -o $@ $<
	-mv $(notdir $(basename $@)).mod include/

%.$(o_ext): %.c
	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<



# ------------------------------------------------------------------------------
# DEVICE kernels

# set the device extension
ifeq ($(BACKEND),cuda)
d_ext := cu
else ifeq ($(BACKEND),hip)
d_ext := cpp
CXXFLAGS += -D__HIP_PLATFORM_AMD__
endif


ifeq ($(BACKEND),cuda)

%.i: %.$(d_ext) | $(CONFIG)
	$(DEVCC) -E $(DEVCCFLAGS) $(CPPFLAGS) -c -o $@ $<

%.$(o_ext): %.$(d_ext) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS)  -c -o $@ $<

%.o: %.cpp | $(CONFIG)
	$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<

else ifeq ($(BACKEND),hip)

%.hip.o: %.hip.cpp | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<

%.o: %.cpp | $(CONFIG)
	$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<

# use `hipcc` for all .cpp's. It may be a bit slower (althought I haven't tested it)
# but there's no good way to tell whether or not it fails for some reason. (buggy
# hipcc is probably the culprit)
#%.o: %.cpp
#	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -c -o $@ $<

endif

# assume C++ for headers; needed for Fortran wrappers
%.i: %.h | $(CONFIG)
	$(CXX) -E $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<

%.i: %.c | $(CONFIG)
	$(CC) -E $(CFLAGS) $(CPPFLAGS) -c -o $@ $<

%.i: %.cpp | $(CONFIG)
	$(CXX) -E $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<


ifeq ($(BACKEND),cuda)
$(libmagma_dynamic_obj): %.$(o_ext): %.$(d_ext) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -I$(SPARSE_DIR)/include -dc -o $@ $<

$(libmagma_dlink_obj): $(libmagma_dynamic_obj) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -dlink -I$(SPARSE_DIR)/include -o $@ $^

$(libsparse_dynamic_obj): %.$(o_ext): %.$(d_ext) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -I$(SPARSE_DIR)/include -dc -o $@ $<

$(libsparse_dlink_obj): $(libsparse_dynamic_obj) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -dlink -I$(SPARSE_DIR)/include -o $@ $^

else ifeq ($(BACKEND),hip)

$(libmagma_dynamic_obj): %.$(o_ext): %.$(d_ext) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -I$(SPARSE_DIR)/include -c -o $@ $<

$(libmagma_dlink_obj): $(libmagma_dynamic_obj) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -dlink -I$(SPARSE_DIR)/include -o $@ $^

$(libsparse_dynamic_obj): %.$(o_ext): %.$(d_ext) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -I$(SPARSE_DIR)/include -c -o $@ $<

$(libsparse_dlink_obj): $(libsparse_dynamic_obj) | $(CONFIG)
	$(DEVCC) $(DEVCCFLAGS) $(CPPFLAGS) -I$(SPARSE_DIR)/include -c -o $@ $^

endif
# ------------------------------------------------------------------------------
# library rules

$(libs_a):
	@echo "===== static library $@"
	$(ARCH) $(ARCHFLAGS) $@ $^
	$(RANLIB) $@
	@echo

ifneq ($(have_fpic),)
    $(libmagma_so):
	@echo "===== shared library $@"
	$(CXX) $(LDFLAGS) -shared -o $@ \
		$^ \
		-L./lib $(LIBS) -Wl,--soname,libmagma.so.2
	mv $(libmagma_so) $(libmagma_so).2
	ln -s $$(basename $(libmagma_so).2) $(libmagma_so)
	@echo

    # Can't add -Llib -lmagma to LIBS, because that would apply to libsparse_so's
    # prerequisites, namely libmagma_so. So libmagma and libsparse need different rules.
    # See Make section 6.11 Target-specific Variable Values.
    $(libsparse_so):
	@echo "===== shared library $@"
	$(CXX) $(LDFLAGS) -shared -o $@ \
		$^ \
		-L./lib $(LIBS) -lmagma -Wl,--soname,libmagma_sparse.so.2
	mv $(libsparse_so) $(libsparse_so).2
	ln -s $$(basename $(libsparse_so).2) $(libsparse_so)
	@echo
else
    # missing -fPIC: "make shared" prints warning
    $(libs_so): shared
endif


# ------------------------------------------------------------------------------
# testers

# link testing_foo from testing_foo.o
$(testers): %: %.$(o_ext)
	$(CXX) $(LDFLAGS) $(RPATH) \
	-o $@ $< \
	-L./testing -ltest \
	-L./lib -lmagma \
	-L./testing/lin -llapacktest \
	$(LIBS) -fPIE -pie

# link Fortran testing_foo from testing_foo.o
$(testers_f): %: %.$(o_ext)
	$(FORT) $(LDFLAGS) $(RPATH) \
	-o $@ $< \
	-L./testing -ltest \
	-L./testing/lin -llapacktest \
	-L./lib -lmagma \
	$(LIBS) -fPIE -pie

# link sparse testing_foo from testing_foo.o
$(sparse_testers): %: %.$(o_ext)
	$(CXX) $(LDFLAGS) $(RPATH) \
	-o $@ $< \
	-L./testing -ltest \
	-L./lib -lmagma_sparse -lmagma \
	$(LIBS) -fPIE -pie


# ------------------------------------------------------------------------------
# filter out MAGMA-specific options for pkg-config
#TODO: add hip specific ones
INSTALL_FLAGS := $(filter-out \
	-DMAGMA_NOAFFINITY -DMAGMA_SETAFFINITY -DMAGMA_WITH_ACML -DMAGMA_WITH_MKL -DUSE_FLOCK \
	-DMAGMA_CUDA_ARCH=% -DMAGMA_CUDA_ARCH_MIN=% \
	-DMAGMA_HAVE_CUDA -DMAGMA_HAVE_HIP -DMAGMA_HAVE_clBLAS \
	-fno-strict-aliasing -fPIC -O0 -O1 -O2 -O3 -pedantic -std=c99 -stdc++98 -stdc++14 \
	-Wall -Wshadow -Wno-long-long, $(CFLAGS))

INSTALL_LDFLAGS := $(filter-out -fPIC -Wall, $(LDFLAGS))

install_dirs:
	mkdir -p $(DESTDIR)$(prefix)
	mkdir -p $(DESTDIR)$(prefix)/include
	mkdir -p $(DESTDIR)$(prefix)/lib$(LIB_SUFFIX)
	mkdir -p $(DESTDIR)$(prefix)/lib$(LIB_SUFFIX)/pkgconfig

install: lib sparse-lib install_dirs
        # MAGMA
	cp include/*.h         $(DESTDIR)$(prefix)/include
	cp include/*.mod       $(DESTDIR)$(prefix)/include
	cp $(SPARSE_DIR)/include/*.h  $(DESTDIR)$(prefix)/include
	cp -dR lib/*.a lib/*.so lib/*.so.*  $(DESTDIR)$(prefix)/lib$(LIB_SUFFIX)
	${MAKE} pkgconfig

pkgconfig:
        # pkgconfig
	mkdir -p $(DESTDIR)$(prefix)/lib$(LIB_SUFFIX)/pkgconfig
	cat lib/pkgconfig/magma.pc.in                   | \
	sed -e s:@INSTALL_PREFIX@:"$(prefix)":          | \
	sed -e s:@CFLAGS@:"$(INSTALL_FLAGS) $(INC)":    | \
	sed -e s:@LIBS@:"$(INSTALL_LDFLAGS) $(LIBS)":   | \
	sed -e s:@MAGMA_REQUIRED@::                       \
	    > $(DESTDIR)$(prefix)/lib$(LIB_SUFFIX)/pkgconfig/magma.pc


# ------------------------------------------------------------------------------
# files.txt is nearly all (active) files in SVN, excluding directories. Useful for rsync, etc.
# files-doxygen.txt is all (active) source files in SVN, used by Doxyfile-fast

# excludes non-active directories like obsolete.
# excludes directories by matching *.* files (\w\.\w) and some exceptions like Makefile.
files.txt: force
	hg st -m -a -c \
		| perl -pe 's/^. +//' | sort \
		| egrep -v '^\.$$|obsolete|deprecated|contrib\b|^exp' \
		| egrep '\w\.\w|Makefile|docs|run' \
		> files.txt
	egrep -v '(\.html|\.css|\.f|\.in|\.m|\.mtx|\.pl|\.png|\.sh|\.txt)$$|checkdiag|COPYRIGHT|docs|example|make\.|Makefile|quark|README|Release|results|testing_|testing/lin|testing/matgen|tools' files.txt \
		| perl -pe 'chomp; $$_ = sprintf("\t../%-57s\\\n", $$_);' \
		> files-doxygen.txt

# files.txt per sub-directory
subdir_files = $(addsuffix /files.txt,$(subdirs) $(sparse_subdirs))

$(subdir_files): force
	cd $(dir $@) && hg st -m -a -c -X '*/*' . \
		| perl -pe 's/^. +//' | sort \
		| egrep -v '^\.$$|obsolete|deprecated|contrib\b|^exp' \
		| egrep '\w\.\w|Makefile|docs|run' \
		> files.txt


# ------------------------------------------------------------------------------
echo:
	@echo "====="
	@echo "hdr                $(hdr)\n"
	@echo "header_all         $(header_all)\n"
	@echo "header_gch         $(header_gch)\n"
	@echo "====="
	@echo "libmagma_src       $(libmagma_src)\n"
	@echo "libmagma_all       $(libmagma_all)\n"
	@echo "libmagma_obj       $(libmagma_obj)\n"
	@echo "libmagma_a         $(libmagma_a)"
	@echo "libmagma_so        $(libmagma_so)"
	@echo "====="
	@echo "libmagma_dynamic_src $(libmagma_dynamic_src)\n"
	@echo "libmagma_dynamic_all $(libmagma_dynamic_all)\n"
	@echo "libmagma_dynamic_obj $(libmagma_dynamic_obj)\n"
	@echo "libmagma_dlink_obj   $(libmagma_dlink_obj)\n"
	@echo "====="
	@echo "libsparse_src      $(libsparse_src)\n"
	@echo "libsparse_all      $(libsparse_all)\n"
	@echo "libsparse_obj      $(libsparse_obj)\n"
	@echo "libsparse_a        $(libsparse_a)"
	@echo "libsparse_so       $(libsparse_so)"
	@echo "====="
	@echo "blas_fix           $(blas_fix)"
	@echo "libblas_fix_src    $(libblas_fix_src)"
	@echo "libblas_fix_a      $(libblas_fix_a)"
	@echo "====="
	@echo "libtest_src        $(libtest_src)\n"
	@echo "libtest_all        $(libtest_all)\n"
	@echo "libtest_obj        $(libtest_obj)\n"
	@echo "libtest_a          $(libtest_a)\n"
	@echo "====="
	@echo "liblapacktest_src  $(liblapacktest_src)\n"
	@echo "liblapacktest_all  $(liblapacktest_all)\n"
	@echo "liblapacktest_all2 $(liblapacktest_all2)\n"
	@echo "liblapacktest_obj  $(liblapacktest_obj)\n"
	@echo "liblapacktest_a    $(liblapacktest_a)\n"
	@echo "====="
	@echo "testing_src        $(testing_src)\n"
	@echo "testing_all        $(testing_all)\n"
	@echo "testing_obj        $(testing_obj)\n"
	@echo "testers            $(testers)\n"
	@echo "testers_f          $(testers_f)\n"
	@echo "====="
	@echo "sparse_testing_src $(sparse_testing_src)\n"
	@echo "sparse_testing_all $(sparse_testing_all)\n"
	@echo "sparse_testing_obj $(sparse_testing_obj)\n"
	@echo "sparse_testers     $(sparse_testers)\n"
	@echo "====="
	@echo "CMake.src $(CMAKESRC)\n"
	@echo "====="
	@echo "dep     $(dep)"
	@echo "deps    $(deps)\n"
	@echo "====="
	@echo "libs    $(libs)"
	@echo "libs_a  $(libs_a)"
	@echo "libs_so $(libs_so)"
	@echo "====="
	@echo "LIBS    $(LIBS)"


# ------------------------------------------------------------------------------
cleandep:
	-rm -f $(deps)

ifeq ($(dep),1)
    -include $(deps)
endif