# Makefile for uClibc's pthread library
#
# Copyright (C) 2002 Erik Andersen <andersen@uclibc.org>
# Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Library General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
# details.
#
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

TOPDIR=../../
include $(TOPDIR)Rules.mak

# As long as there is only one subdir, we don't 
# have to worry about race conditions with multiple 
# $(AR)'s in subdirs running on linuxthreads.a.
DIRS = sysdeps

CFLAGS+=$(SSP_ALL_CFLAGS)

#This stuff will not compile without at least -O1
CFLAGS :=$(CFLAGS:-O0=-O1)

# set up system dependencies include dirs (NOTE: order matters!)
# psm: don't think that the last include makes sense
# they all should be already linked to $(TOPDIR)include
PTDIR = $(TOPDIR)libpthread/linuxthreads/
SYSDEPINC = -I$(PTDIR)sysdeps/pthread \
            -I$(PTDIR)sysdeps/$(TARGET_ARCH) \
            -I$(TOPDIR)libc/sysdeps/linux/$(TARGET_ARCH)
CFLAGS += $(SYSDEPINC)

ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
	SHARED_START_FILES = $(TOPDIR)lib/crti.o $(LIBGCC_DIR)crtbeginS.o
	SHARED_END_FILES = $(LIBGCC_DIR)crtendS.o $(TOPDIR)lib/crtn.o
endif

LIB_NAME=libpthread
AR_LIB_NAME=$(TOPDIR)lib/$(LIB_NAME).a
SO_LIB_NAME=$(TOPDIR)lib/$(LIB_NAME).so
SO_FULL_NAME=$(LIB_NAME)-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so

CSRC  = $(wildcard *.c)
ifneq ($(strip $(UCLIBC_HAS_XLOCALE)),y)
CSRC := $(filter-out locale.c,$(CSRC))
endif

OBJS=$(patsubst %.c,%.o, $(CSRC))

# We need to make sure that we put all the top-level $(OBJS) into
# our archive before executing subdirs.  That way, when $(AR) is 
# run in the subdirs, it'll bump the generic top-level objects 
# out of our archive in favor of the machine-specific ones.
ifeq ($(strip $(HAVE_SHARED)),y)
all: $(SO_LIB_NAME)
else
all: subdirs
endif

$(AR_LIB_NAME): $(OBJS)
	$(INSTALL) -d $(TOPDIR)lib
	$(RM) $(AR_LIB_NAME)
	$(AR) $(ARFLAGS) $(AR_LIB_NAME) $(OBJS)

$(SO_LIB_NAME): subdirs
	$(RM) $(TOPDIR)lib/$(SO_FULL_NAME) $(SO_LIB_NAME).$(MAJOR_VERSION) $(SO_LIB_NAME)
	$(LD) $(LDFLAGS_NOSTRIP) -soname=$(LIB_NAME).so.$(MAJOR_VERSION) \
		-o $(TOPDIR)lib/$(SO_FULL_NAME) $(SHARED_START_FILES) --whole-archive $(AR_LIB_NAME) \
		--no-whole-archive $(TOPDIR)libc/misc/internals/interp.o \
		-L$(TOPDIR)lib -lc $(LDADD_LIBFLOAT) $(LIBGCC) $(SHARED_END_FILES)
	$(LN) -sf $(SO_FULL_NAME) $(SO_LIB_NAME).$(MAJOR_VERSION)
	$(LN) -sf $(SO_FULL_NAME) $(SO_LIB_NAME)

$(OBJS): %.o : %.c
	$(CC) $(CFLAGS) -c $< -o $@
ifeq ($(strip $(PTHREADS_DEBUG_SUPPORT)),y)
	$(STRIPTOOL) -X --strip-debug -R .note -R .comment $*.o
else
	$(STRIPTOOL) -x -R .note -R .comment $*.o
endif

clean: subdirs_clean
	$(RM) *.o *~ core

subdirs: $(patsubst %, _dir_%, $(DIRS))
subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))

$(patsubst %, _dir_%, $(DIRS)): $(AR_LIB_NAME)
	$(MAKE) -C $(patsubst _dir_%, %, $@)

$(patsubst %, _dirclean_%, $(DIRS)): dummy
	$(MAKE) -C $(patsubst _dirclean_%, %, $@) clean

.PHONY: dummy