# -*- Makefile -*-
# $Id: platform_android.GNU 97680 2014-04-04 11:23:00Z mcorino $

# This file should allow ACE to be built for Android 2.3.1 (API Level 9)
# or greater, by cross compiling on Linux.

# The standalone gcc compilers in NDK r6-r9 have issues with the visibility.
no_hidden_visibility ?= 1

# as of NDK r6 inlining is required
inline ?= 1

include $(ACE_ROOT)/include/makeinclude/platform_linux_common.GNU

#No rwho on Android
rwho = 0

#Standalone toolchain required.
#Required environment variables are
#$NDK - install directory for android NDK, at least r5c
#$SDK - install directory for android SDK
#$SYSROOT - $NDK/platform/android-9
#$TOOLCHAIN/bin in path, $TOOLCHAIN is root of standalone toolchain
#
#Optionally ANDROID_ABI can be set to select specific architecture ABIs like armeabi-v7a or neon
#
#Toolchain defaults to arm architecture
ANDROID_ARCH ?= arm

#SYSROOT ?= $(NDK)/platforms/android-9/arch-$(ANDROID_ARCH)

ifeq (,$(CROSS_COMPILE))
  ifeq ($(ANDROID_ARCH),arm)
    CROSS_COMPILE=arm-linux-androideabi-
  else
    ifeq ($(ANDROID_ARCH),x86)
      CROSS_COMPILE=i686-android-linux-
    else
      CROSS_COMPILE=unknown-android-arch-
    endif
  endif
endif

# fix this
pipes ?= 1

# set archtecture specific build flags
ifeq (arm,$(findstring arm,$(ANDROID_ARCH)))

  # Set ABI specific flags
  ifeq ($(ANDROID_ABI),armeabi-v7a)
    FLAGS_C_CC += -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16
    LDFLAGS    += -march=armv7-a
  endif
  ifeq ($(ANDROID_ABI),neon)
    FLAGS_C_CC += -march=armv7-a -mfloat-abi=softfp -mfpu=neon
    LDFLAGS    += -march=armv7-a
  endif

  # NDK says required for working around a CPU bug in some Cortex-A8 implementations
  LDFLAGS += -Wl,--fix-cortex-a8
endif

FLAGS_C_CC += -W -Wall -Wpointer-arith -Wno-psabi
ifeq ($(threads),1)
    CPPFLAGS  += -D_REENTRANT $(PLATFORM_AIO_SUPPORT)
endif # threads

ifeq ($(buildbits),32)
  FLAGS_C_CC += -m32
  LDFLAGS    += -m32
endif
ifeq ($(buildbits),64)
  FLAGS_C_CC += -m64
endif

# DT_RUNPATH is preferred over DT_RPATH, but the linker will only use it when
# this extra flag option (enable-new-dtags) is present
LD_RPATH_FLAGS += -Wl,--enable-new-dtags

# Rely on _GNU_SOURCE to set these defaults defined in /usr/include/features.h
# instead of setting them directly here (older versions of gcc don't set it
# for you): _SVID_SOURCE _BSD_SOURCE _POSIX_SOURCE _POSIX_C_SOURCE=199506L, ...
CPPFLAGS += -D_GNU_SOURCE

DCFLAGS  += -ggdb
DCCFLAGS += -ggdb
DLD      = $(CXX)
LD       = $(CXX)
# make sure to add the required libs for RTTI and exceptions (libsupc++)
# and a shared STL lib (libgnustl_shared by default)
static_libs_only ?=
ANDROID_STL_DLL ?= gnustl_shared
LIBS     += -ldl -lsupc++
ifneq ($(static_libs_only),1)
  LIBS   += -l$(ANDROID_STL_DLL)
endif

ifeq ($(optimize),1)
  SOFLAGS += -Wl,-O3
endif

SOFLAGS += $(CPPFLAGS) -shared
SOBUILD = $(COMPILE.cc) $(PIC) -o $(VSHDIR)$*.so $<; \
          $(SOLINK.cc) -o $@ $(LDFLAGS) $(VSHDIR)$*.o
PRELIB  = @true

# Test for template instantiation, add to SOFLAGS if SONAME set,
# add -E to LDFLAGS if using GNU ld
#
include $(ACE_ROOT)/include/makeinclude/platform_g++_common.GNU

OCFLAGS ?= -O3
OCCFLAGS ?= -O3

# Added line below to support "Executable Shared Object" files (as
# needed by the service configurator).
# Marius Kjeldahl <mariusk@sn.no, marius@funcom.com>
ifeq ($(threads),1)
    ESOBUILD = $(COMPILEESO.cc) $(PIC) -shared -o $(VSHDIR)$*.so $<
    ifndef PRELIB
       PRELIB = @true
    endif # ! PRELIB
endif