# -*- Mode: Makefile -*-

# TODO: Find a way to point out directories (i.e. current dir, or root dir)
# TODO: Find the names of the icc windows library includes.. i.e. dlls/etc.
# TODO: Find icc equivalents for W64 (warn about 32 vs 64 bit incompatibility
# TODO: Add (linux) icc warning about windows porting issues.
# TODO: There is an icc option for short 1-liner diagnostics.. see if there is
# an opposite!  (i.e. long diagnostics which maybe will give us a stack trace
# for warnings)
# TODO: Learn how the hell to use idb.
#
# Default include makefile.
# Before (or after?) including this makefile, define the following variables
# 	INCLUDES = -I $(TOKUROOT)/.. -I . -I $(TOKUROOT)/... #Whatever include directories
# 		List of directories to include for search paths.
# 	TOKUROOT = absolute path of the root of this branch.
# 		TODO: find alternative way to do this.
# 	BINS     = base names for bins
# 	SUBDIRS  = Subdirs to make/clean
#
# On cygwin do:
#   make CYGWIN=cygwin check
#
# For default=debug (no optimization) do
#   make DEBUG=1

# For verbose output do
#   make VERBOSE=1
# For very verbose output do 
#   make VERBOSE=2

# For CIL do
#   make CIL=1

# For coverage do
#   make GCOV=1

# For profiling do
#   make PROF=1

# To make warnings be warnngs instead of errors do
#   make WERROR=

ifeq ($(DEBUG),)
    DEBUG = 0
endif

.DELETE_ON_ERROR:

ifneq ($(GCOV),)
    GCOV_FLAGS = -fprofile-arcs -ftest-coverage
endif

ifneq ($(PROF),)
    PROF_FLAGS = -pg
endif

OPT_OPTFLAGS = -O3 -finline-functions
DBG_OPTFLAGS = -O0

ifeq ($(VERBOSE),2)
VERBVERBOSE=-v
MAYBEATSIGN= 
else ifeq ($(VERBOSE),1)
  VERBVERBOSE=-q
  MAYBEATSIGN=
 else
  VERBVERBOSE=-q
  MAYBEATSIGN=@
endif

CPPFLAGS = $(INCLUDEDIRS) -I$(PORTABILITY_HEADERS) -I$(TOKUROOT)toku_include

#CFLAG default options
# Add -Wconversion #DISABLED for now.

WERROR    = -Werror
WALL      = -Wall -Wextra -Wcast-align -Wbad-function-cast
ifeq ($(SKIP_NORETURN),)
WALL     += -Wmissing-noreturn
endif

FORMAT    = -Wmissing-format-attribute
VISIBILITY= -fvisibility=hidden
FPICFLAGS = -fPIC
SHADOW    = -Wshadow
SYMBOLS   = -g3 -ggdb3
PORTABILITY=
SKIP_WARNING=
COMBINE_C = -combine -c
LIBPORTABILITY        = $(TOKUROOT)lib/libtokuportability.$(AEXT)
LIBPORTABILITY_BUNDLE = $(TOKUROOT)lib/libtokuportability.bundle

PORTABILITY_HEADERS= $(TOKUROOT)linux
ALWAYS_LINK= $(LIBPORTABILITY) -lz -lpthread 
C99       = -std=c99
W64       = #-Wshorten-64-to-32
BINOUTPUT = -o
OOUTPUT   = -o
AROUTPUT  =#empty
BINSUF=#none
WRONGBINSUF=.exe
OEXT=o
WRONGOEXT=obj
AEXT=a
WRONGAEXT=lib
SOEXT=so
WRONGSOEXT=dll
AR=ar
DBG_ARFLAGS=cr
OPT_ARFLAGS=cr
LINK=-l
DEPEND_COMPILE += \
	$(TOKUROOT)include/db.h \
	$(TOKUROOT)toku_include/toku_os.h \
	$(TOKUROOT)toku_include/toku_portability.h \
	$(TOKUROOT)toku_include/rdtsc.h \
# keep this line so I can have a \ on the previous line
CCQUIET=

comma:=,
empty:=#
space:=$(empty) $(empty)
LINK_LPATH=$(patsubst %,-Wl$(comma)-rpath$(comma)%,$(RPATH_DIRS))
LINK_RPATH=$(patsubst %,-L%$(space),$(RPATH_DIRS))
DLINK_FILES_PREPROCESS_1=$(patsubst %.$(SOEXT),%,$(DLINK_FILES))
DLINK_FILES_PREPROCESS_2=$(patsubst lib%,%,$(notdir $(DLINK_FILES_PREPROCESS_1)))
LINK_DLINK_FILES=$(patsubst %,$(LINK)%,$(notdir $(DLINK_FILES_PREPROCESS_2)))

CRUNTIME=
DEPEND_LINK += \
	$(LIBPORTABILITY) \
	$(LINK_FILES) \
# keep this line so I can have a \ on the previous line


ifeq ($(CYGWIN),)
    OS_CHOICE=linux
    OS_NOTCHOICE=windows
else ifneq ($(CC),icc)
    OS_CHOICE=linux
    OS_NOTCHOICE=windows
else
    OS_CHOICE=windows
    OS_NOTCHOICE=linux
endif

DEPEND_COMPILE += $(wildcard $(TOKUROOT)$(OS_CHOICE)/*.h)

SUPPRESSIONS=no

#Tools
VGRIND=valgrind --quiet --error-exitcode=1 --leak-check=full --show-reachable=yes \
       --suppressions=$(TOKUROOT)newbrt/valgrind.suppressions \
       --suppressions=$(TOKUROOT)src/tests/bdb.suppressions \
       --gen-suppressions=$(SUPPRESSIONS)

HGRIND=valgrind --quiet --tool=helgrind --error-exitcode=1

# When debugging, try: valgrind --show-reachable=yes --leak-check=full ./brt-test
# When debugging, try: valgrind --show-reachable=yes --leak-check=full ./brt-test

ifeq ($(CC),icc)
    #icc only:
    OPT_OPTFLAGS = -O3 -ip -ipo1
    DBG_OPTFLAGS = -O0
    COMBINE_C = -ipo-c
    FORMAT= #No argument for extra format warnings.
    WALL  = -Wall -Wcheck # '-Wextra' becomes '-Wcheck' in icc
    SYMBOLS= -g -debug all -inline-debug-info
    PORTABILITY=-diag-enable port-win
    AR=xiar
    ifneq ($(CYGWIN),)
	#Cygwin
        ICC_NOWARN=-Qdiag-disable:
        SKIP_WARNING += $(ICC_NOWARN)869    # Don't complain about unused variables (since we defined __attribute__ to be nothing.)
    else
	#Linux
        ICC_NOWARN=-diag-disable #Need the space
    endif
    SKIP_WARNING += $(ICC_NOWARN)177     # Don't complain about static variables that are not used.
    #SKIP_WARNING += $(ICC_NOWARN)188     # Don't complain about enumerated type mixed with another type.
    SKIP_WARNING += $(ICC_NOWARN)589     # Don't complain about goto into a block that skips initializing variables.  GCC catches the actual uninitialized variables.
    SKIP_WARNING += $(ICC_NOWARN)981    # Don't complain about "operands are evaluated in unspecified order".  This seems to be generated whenever more than one argument to a function or operand is computed by function call.
    SKIP_WARNING += $(ICC_NOWARN)1324    # Don't complain about rdtsc clobbering its registers more than once.
endif

ifneq ($(CYGWIN),)
    #Cygwin (Windows) Must override some settings
    BINSUF=.exe
    WRONGBINSUF=#empty
    ALWAYS_LINK=$(LIBPORTABILITY) /usr/lib/libz.a
    SRCPATH_DIRS = `find $(TOKUROOT) -type d | grep -v '/\.[^.]' | grep -F -v "$(TOKUROOT)$(OS_NOTCHOICE)" | tr '\n' ';'` 
    VGRIND   = windbg -Q -c "ddddddddd;g" -y "$(SRCPATH_DIRS)" -srcpath "$(SRCPATH_DIRS)" #No Valgrind in cygwin #-G is quit at exit, but does not return ERROR on error!!! and quits on error to quickly
    HGRIND   =#No Hgrind in cygwin
    FPICFLAGS=#FPIC is default and not allowed as an option.
    VISIBILITY=#Not supported
    SHADOW=#Not supported
    ifeq ($(CC),icc)
	#Cygwin icc only
	ifeq ($(CRUNTIME),)
	ifeq ($(DEBUG),0)
	    CRUNTIME=MD
	else
	    CRUNTIME=MDd
	endif
	endif
        ALWAYS_LINK=$(LIBPORTABILITY) $(TOKUROOT)windows/lib/$(CRUNTIME)/zlib.lib Ws2_32.lib psapi.lib
        LINK=#Empty
        BINOUTPUT=-Fe
        OOUTPUT=-Fo
        AROUTPUT=/out:
        OEXT=obj
        WRONGOEXT=o
        AEXT=lib
        WRONGAEXT=a
        SOEXT=dll
        WRONGSOEXT=so
        C99       = -Qstd=c99
        OPT_OPTFLAGS = -Ox -Qip -Qipo1
        DBG_OPTFLAGS = -Od
        COMBINE_C = -Qipo-c
        WERROR = -WX # Windows icc version of -Werror
        SYMBOLS= -Zi -debug:all -Qinline-debug-info
        PORTABILITY=
        SKIP_WARNING += $(ICC_NOWARN)1786    # Don't complain about 'read/write/other standards' being deprecated
        PORTABILITY_HEADERS = $(TOKUROOT)windows
        AR=xilib
        DBG_AROPT=-qnoipo
        OPT_AROPT=-qipo
        DBG_ARFLAGS=$(DBG_AROPT) -lib /VERBOSE /WX /NOLOGO
        OPT_ARFLAGS=$(OPT_AROPT) -lib /VERBOSE /WX /NOLOGO
        CCQUIET=-nologo
        LINK_DLINK_FILES=$(patsubst %.$(SOEXT),%.$(AEXT),$(DLINK_FILES))
        LINK_RPATH=
        LINK_LPATH=
        DEPEND_LINK += $(LINK_DLINK_FILES)
        W64 = -Wport #-Wp64 
    else
        #Cygwin gcc only
        FORMAT = -Wno-format
    endif
endif

ifeq ($(DEBUG),0)
    OPTFLAGS = $(OPT_OPTFLAGS)
    ARFLAGS  = $(OPT_ARFLAGS)
else
    OPTFLAGS = $(DBG_OPTFLAGS)
    ARFLAGS  = $(DBG_ARFLAGS)
endif

CFLAGS = $(WALL) $(W64) $(WERROR) $(FORMAT) $(VISIBILITY) $(FPICFLAGS) $(SHADOW)
CFLAGS += $(OPTFLAGS) $(GCOV_FLAGS) $(PROF_FLAGS)
CFLAGS += $(SYMBOLS) $(SKIP_WARNING) $(C99) $(CCQUIET)

LDFLAGS_NOLIB = $(OPTFLAGS) $(SYMBOLS) $(GCOV_FLAGS) $(PROF_FLAGS)
LDFLAGS = $(LDFLAGS_NOLIB) $(LINK_FILES) $(ALWAYS_LINK) $(LINK_DLINK_FILES) $(LINK_RPATH) $(LINK_LPATH)
ifneq ($(CRUNTIME),)
LDFLAGS += -$(CRUNTIME)
CFLAGS += -$(CRUNTIME)
endif
# Need XOPEN_SOURCE=600 to get strtoll()
CPPFLAGS+=-D_SVID_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_XOPEN_SOURCE=600

#TODO: Fix this up if we want to keep using CIL.
#ifeq ($(CIL),1)
#	CC=../../cil/cil-1.3.6/bin/cilly --merge --keepmerged
#endif

# When debugging, try: valgrind --show-reachable=yes --leak-check=full ./brt-test

ifneq ($(CYGWIN),)
    CSCOPE=mlcscope
else
    CSCOPE=cscope
endif

.PHONY: tags
tags: cscope.out TAGS

TAGS: $(TOKUROOT)*/*.[ch] $(TOKUROOT)*/*/*.[ch] $(TOKUROOT)*/*/*/*.[ch]
	etags $(TOKUROOT)*/*.[ch] $(TOKUROOT)*/*/*.[ch] $(TOKUROOT)*/*/*/*.[ch]

cscope.files: $(TOKUROOT)*/*.[ch] $(TOKUROOT)*/*/*.[ch] $(TOKUROOT)*/*/*/*.[ch]
	(echo $(TOKUROOT)*/*.[ch] $(TOKUROOT)*/*/*.[ch] $(TOKUROOT)*/*/*/*.[ch] | tr " " "\n") > $@ # Very long command line quieted.

cscope.out: cscope.files $(TOKUROOT)*/*.[ch] $(TOKUROOT)*/*/*.[ch] $(TOKUROOT)*/*/*/*.[ch]
	$(CSCOPE) -qb

.PHONY: clean clean-default %.dir.clean
clean: clean-default

%.dir.clean:
	cd $* && $(MAKE) clean

clean-default:
	rm -f $(BINS) *.$(AEXT) *.$(SOEXT) *.$(OEXT)
	rm -f *.bb *.bbg *.da *.gcov *.gcno *.gcda
	rm -f *.exe *.obj *.pdb *.ilk
	rm -f *.exe.manifest *.dll.manifest

#Prevent using the wrong extensions/target types (Otherwise prereqs get confused).
%$(WRONGBINSUF): %.c
	echo "Wrong target type: $@ should be $*$(BINSUF)" && false
%$(WRONGBINSUF): %.$(WRONGOEXT)
	echo "Wrong target type: $@ should be $*$(BINSUF)" && false
%.$(WRONGOEXT): %.c
	echo "Wrong target type: $@ should be $*.$(OEXT)" && false
%.$(WRONGAEXT):
	echo "Wrong target type: $@ should be $*.$(AEXT)" && false
%.$(WRONGSOEXT):
	echo "Wrong target type: $@ should be $*.$(SOEXT)" && false

ifeq ($(SKIP_LIBPORTABILITYRULE),)
ifeq ($(CYGWIN),)
$(LIBPORTABILITY): $(TOKUROOT)linux/*.[ch]
	cd $(TOKUROOT)linux &&   $(MAKE) install
else ifneq ($(CC),icc)
$(LIBPORTABILITY): $(TOKUROOT)linux/*.[ch]
	cd $(TOKUROOT)linux &&   $(MAKE) install
else
$(LIBPORTABILITY): $(TOKUROOT)windows/*.[ch]
	cd $(TOKUROOT)windows && $(MAKE) install
endif
endif

ifeq ($(SKIP_LOCKTREERULE),)
LOCKTREE         = $(TOKUROOT)src/lock_tree/locktree.$(AEXT)
LOCKTREE_BUNDLE  = $(TOKUROOT)src/lock_tree/locktree.bundle
LOCKTREE_LINEAR  = $(TOKUROOT)src/lock_tree/locktree_linear.$(AEXT)
LOCKTREE_TLOG    = $(TOKUROOT)src/lock_tree/locktree_tlog.$(AEXT)
LOCKTREE_LOG     = $(TOKUROOT)src/lock_tree/locktree_log.$(AEXT)
$(LOCKTREE) $(LOCKTREE_LINEAR) $(LOCKTREE_TLOG) $(LOCKTREE_LOG): $(@D)*.[ch]
	cd $(@D) && $(MAKE) $(@F)
endif

ifeq ($(SKIP_RANGETREERULE),)
RANGETREE        = $(TOKUROOT)src/range_tree/rangetree.$(AEXT)
RANGETREE_BUNDLE = $(TOKUROOT)src/range_tree/rangetree.bundle
RANGETREE_LINEAR = $(TOKUROOT)src/range_tree/rangetree_linear.$(AEXT)
RANGETREE_TLOG   = $(TOKUROOT)src/range_tree/rangetree_tlog.$(AEXT)
RANGETREE_LOG    = $(TOKUROOT)src/range_tree/rangetree_log.$(AEXT)
$(RANGETREE) $(RANGETREE_LINEAR) $(RANGETREE_TLOG) $(RANGETREE_LOG): $(@D)*.[ch]
	cd $(@D) && $(MAKE) $(@F)
endif

ifeq ($(SKIP_NEWBRTRULE),)
NEWBRT           = $(TOKUROOT)newbrt/newbrt.$(AEXT)
NEWBRT_BUNDLE    = $(TOKUROOT)newbrt/newbrt.bundle
$(NEWBRT): $(@D)*.[ch]
	cd $(@D) && $(MAKE) $(@F)
endif

BIN_FROM_C_FLAGS      =$(CFLAGS) $(CPPFLAGS)    $(LDFLAGS)       $(BINOUTPUT)$@
BIN_FROM_C_FLAGS_NOLIB=$(CFLAGS) $(CPPFLAGS)    $(LDFLAGS_NOLIB) $(BINOUTPUT)$@
%$(BINSUF):%.c       $(DEPEND_COMPILE) $(DEPEND_LINK)
	$(CC) $< $(BIN_FROM_C_FLAGS)

BIN_FROM_O_FLAGS      =$(CFLAGS) $(CPPFLAGS)    $(LDFLAGS)       $(BINOUTPUT)$@
BIN_FROM_O_FLAGS_NOLIB=$(CFLAGS) $(CPPFLAGS)    $(LDFLAGS_NOLIB) $(BINOUTPUT)$@
%$(BINSUF):%.$(OEXT) $(DEPEND_COMPILE) $(DEPEND_LINK)
	$(CC) $< $(BIN_FROM_O_FLAGS)

%.$(OEXT):%.c        $(DEPEND_COMPILE)
	$(CC) $< -c $(CPPFLAGS) $(CFLAGS) $(OOUTPUT)$@

%.$(AEXT):
	$(AR) $(ARFLAGS) $(AROUTPUT)$@ $(filter %.$(OEXT),$^) $(patsubst %.bundle, %.bundle/*.$(OEXT), $(filter-out %.$(OEXT),$^))
ifeq ($(AEXT),a)
%.bundle: %.$(AEXT)
	mkdir -p $@ && cd $@ && $(AR) x ../$(<F)
	touch $@
else
#Windows lib cannot extract everything.
#Do a for loop and extract one at a time.
%.bundle: %.$(AEXT)
	mkdir -p $@ && cd $@ && for ofile in `lib /list ../$(<F) |dos2unix |grep -F obj`; do lib /extract:$$ofile ../$(<F); done
	touch $@
endif


ifeq ($(SOEXT),so)
EXPORTMAPFILE=export.map
EXPORTMAP = -Wl,--version-script=$(EXPORTMAPFILE)
SHARED=-shared
endif
ifeq ($(SOEXT),dll)
    ifeq ($(DEBUG),0)
        SHARED=/LD
    else
        SHARED=/LDd
    endif
EXPORTMAPFILE=export.def
EXPORTMAP=/link /def:$(EXPORTMAPFILE)
endif

SO_FLAGS=$(SHARED) $(BIN_FROM_O_FLAGS) $(EXPORTMAP)
%.$(SOEXT): $(EXPORTMAPFILE)
	$(CC) $(SO_FLAGS)

#Testing tools
ifeq ($(SUMMARIZE),1)
SUMMARIZE_CMD = ;if test $$? = 0; then printf "%-60sPASS\n" $(HERE)/$@; else printf "%-60sFAIL\n" $(HERE)/$@ ; test 0 = 1; fi
SUMMARIZE_SHOULD_FAIL= ;if test $$? = 0; then printf "%-60sXFAIL\n" $(HERE)/$@; else printf "%-60sXPASS\n" $(HERE)/$@ ; test 0 = 1; fi
INVERTER=;test $$? -ne 0
else
SUMMARIZE_CMD =
endif

#Auto change variables from raw to include .exe if necessary.
BINS = $(patsubst %,%$(BINSUF),$(BINS_RAW))
OBJS = $(patsubst %,%.$(OEXT),$(OBJS_RAW))
REGRESSION_TESTS = $(patsubst %,%$(BINSUF),$(REGRESSION_TESTS_RAW))

APPVERIFIER_TESTS=exceptions handles heaps locks memory threadpool tls dangerousapis dirtystacks filepaths inputoutput
APPVERIFIER_TESTS_NONDEFAULT=heaps.backward:TRUE heaps.protect:TRUE
ENABLE_APPVERIFIER_FOR=appverif -enable $(APPVERIFIER_TESTS) -with $(APPVERIFIER_TESTS_NONDEFAULT) -for
DISABLE_APPVERIFIER_FOR=appverif -disable \* -for
%.appverifyenable:
	$(ENABLE_APPVERIFIER_FOR) $*.exe
%.appverifydisable:
	$(DISABLE_APPVERIFIER_FOR) $*.exe

.PHONY:%.appverifyenable %.appverifydisable %.appverifymaybeenable %.appverifymaybedisable

EXE_FILES = $(wildcard *.exe)
appverifyenable: $(patsubst %.exe,%.appverifyenable,$(EXE_FILES));
appverifydisable: $(patsubst %.exe,%.appverifydisable,$(EXE_FILES));