Android Crypto++ 命令行编译，GNUmakefile

Question

我在制作适当的 GNUmakefile 时遇到问题，它应该为 Android 创建 Crypto++ 库。我正在使用这个 tutorial ，我一直在修补 makefile。我在哪里可以找到提到的文件 GNUmakefile-android.patch？我试过手动向文件中添加行，但我不确定我做的是否正确。现在我的 GNUmakefile 看起来像这样:

CXXFLAGS = -DNDEBUG -g -O2
# -O3 fails to link on Cygwin GCC version 4.5.3
# -fPIC is supported. Please report any breakage of -fPIC as a bug.
# CXXFLAGS += -fPIC
# the following options reduce code size, but breaks link or makes link very slow on some systems
# CXXFLAGS += -ffunction-sections -fdata-sections
# LDFLAGS += -Wl,--gc-sections
ARFLAGS = -cr   # ar needs the dash on OpenBSD
RANLIB = ranlib
CP = cp
MKDIR = mkdir
EGREP = egrep
UNAME = $(shell uname)
ISX86 = $(shell uname -m | $(EGREP) -c "i.86|x86|i86|amd64")
IS_SUN_CC = $(shell $(CXX) -V 2>&1 | $(EGREP) -c "CC: Sun")
IS_LINUX = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -c "linux")
IS_MINGW = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -c "mingw")
CLANG_COMPILER = $(shell $(CXX) --version 2>&1 | $(EGREP) -i -c "clang version")

# Set in the environment
ifeq ($(IS_CROSS_COMPILE),1)
  ISX86=0
  IS_LINUX=0
  IS_MINGW=0
  IS_DARWIN=0
  UNAME=CrossCompile
endif

# Default prefix for make install
ifeq ($(PREFIX),)
PREFIX = /usr
endif

ifeq ($(CXX),gcc)   # for some reason CXX is gcc on cygwin 1.1.4
CXX = g++
endif


ifeq ($(IS_ANDROID),1)
  CPP=arm-linux-androideabi-cpp
  CXX=arm-linux-androideabi-g++
  AR=arm-linux-androideabi-ar
  RANLIB=arm-linux-androideabi-ranlib
  LD=arm-linux-androideabi-ld

  CXXFLAGS += -fPIC -DCRYPTOPP_DISABLE_ASM --sysroot=$(ANDROID_SYSROOT) -I$(ANDROID_STL_INC)
  LDLIBS += $(ANDROID_STL_LIB)
endif

#if defined(__ANDROID__)
# include <sys/select.h>
#endif

ifeq ($(ISX86),1)

GCC42_OR_LATER = $(shell $(CXX) -v 2>&1 | $(EGREP) -c "^gcc version (4.[2-9]|[5-9])")
INTEL_COMPILER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(ICC\)")
ICC111_OR_LATER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(ICC\) ([2-9][0-9]|1[2-9]|11\.[1-9])")
GAS210_OR_LATER = $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.[1-9][0-9]|[3-9])")
GAS217_OR_LATER = $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.1[7-9]|2\.[2-9]|[3-9])")
GAS219_OR_LATER = $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.19|2\.[2-9]|[3-9])")

ifneq ($(GCC42_OR_LATER),0)
ifeq ($(UNAME),Darwin)
CXXFLAGS += -arch x86_64 -arch i386
else
CXXFLAGS += -march=native
endif
endif

ifneq ($(INTEL_COMPILER),0)
CXXFLAGS += -wd68 -wd186 -wd279 -wd327
ifeq ($(ICC111_OR_LATER),0)
# "internal error: backend signals" occurs on some x86 inline assembly with ICC 9 and some x64 inline assembly with ICC 11.0
# if you want to use Crypto++'s assembly code with ICC, try enabling it on individual files
CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
endif
endif

ifeq ($(GAS210_OR_LATER),0) # .intel_syntax wasn't supported until GNU assembler 2.10
CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
else
ifeq ($(GAS217_OR_LATER),0)
CXXFLAGS += -DCRYPTOPP_DISABLE_SSSE3
else
ifeq ($(GAS219_OR_LATER),0)
CXXFLAGS += -DCRYPTOPP_DISABLE_AESNI
endif
endif
ifeq ($(UNAME),SunOS)
CXXFLAGS += -Wa,--divide    # allow use of "/" operator
endif
endif

endif   # ISX86

ifeq ($(UNAME),)    # for DJGPP, where uname doesn't exist
CXXFLAGS += -mbnu210
else
CXXFLAGS += -pipe
endif

ifeq ($(IS_MINGW),1)
LDLIBS += -lws2_32
endif

ifeq ($(IS_LINUX),1)
LDFLAGS += -pthread
ifneq ($(shell uname -i | $(EGREP) -c "(_64|d64)"),0)
M32OR64 = -m64
endif
endif

ifeq ($(UNAME),Darwin)
AR = libtool
ARFLAGS = -static -o
CXX = c++
IS_GCC2 = $(shell $(CXX) -v 2>&1 | $(EGREP) -c gcc-932)
ifeq ($(IS_GCC2),1)
CXXFLAGS += -fno-coalesce-templates -fno-coalesce-static-vtables
LDLIBS += -lstdc++
LDFLAGS += -flat_namespace -undefined suppress -m
endif
endif

ifeq ($(UNAME),SunOS)
LDLIBS += -lnsl -lsocket
M32OR64 = -m$(shell isainfo -b)
endif

ifneq ($(CLANG_COMPILER),0)
CXXFLAGS += -Wno-tautological-compare
endif

ifneq ($(IS_SUN_CC),0)  # override flags for CC Sun C++ compiler
CXXFLAGS = -DNDEBUG -O -g0 -native -template=no%extdef $(M32OR64)
LDFLAGS =
AR = $(CXX)
ARFLAGS = -xar -o
RANLIB = true
SUN_CC10_BUGGY = $(shell $(CXX) -V 2>&1 | $(EGREP) -c "CC: Sun .* 5\.10 .* (2009|2010/0[1-4])")
ifneq ($(SUN_CC10_BUGGY),0)
# -DCRYPTOPP_INCLUDE_VECTOR_CC is needed for Sun Studio 12u1 Sun C++ 5.10 SunOS_i386 128229-02 2009/09/21 and was fixed in May 2010
# remove it if you get "already had a body defined" errors in vector.cc
CXXFLAGS += -DCRYPTOPP_INCLUDE_VECTOR_CC
endif
endif

SRCS = $(wildcard *.cpp)
ifeq ($(SRCS),)             # workaround wildcard function bug in GNU Make 3.77
SRCS = $(shell echo *.cpp)
endif

OBJS = $(SRCS:.cpp=.o)
# test.o needs to be after bench.o for cygwin 1.1.4 (possible ld bug?)
TESTOBJS = bench.o bench2.o test.o validat1.o validat2.o validat3.o adhoc.o datatest.o regtest.o fipsalgt.o dlltest.o
LIBOBJS = $(filter-out $(TESTOBJS),$(OBJS))

DLLSRCS = algebra.cpp algparam.cpp asn.cpp basecode.cpp cbcmac.cpp channels.cpp cryptlib.cpp des.cpp dessp.cpp dh.cpp dll.cpp dsa.cpp ec2n.cpp eccrypto.cpp ecp.cpp eprecomp.cpp files.cpp filters.cpp fips140.cpp fipstest.cpp gf2n.cpp gfpcrypt.cpp hex.cpp hmac.cpp integer.cpp iterhash.cpp misc.cpp modes.cpp modexppc.cpp mqueue.cpp nbtheory.cpp oaep.cpp osrng.cpp pch.cpp pkcspad.cpp pubkey.cpp queue.cpp randpool.cpp rdtables.cpp rijndael.cpp rng.cpp rsa.cpp sha.cpp simple.cpp skipjack.cpp strciphr.cpp trdlocal.cpp
DLLOBJS = $(DLLSRCS:.cpp=.export.o)
LIBIMPORTOBJS = $(LIBOBJS:.o=.import.o)
TESTIMPORTOBJS = $(TESTOBJS:.o=.import.o)
DLLTESTOBJS = dlltest.dllonly.o

all: cryptest.exe
static: libcryptopp.a
dynamic: libcryptopp.so

test: cryptest.exe
    ./cryptest.exe v

clean:
    -$(RM) cryptest.exe libcryptopp.a libcryptopp.so $(LIBOBJS) $(TESTOBJS) cryptopp.dll libcryptopp.dll.a libcryptopp.import.a cryptest.import.exe dlltest.exe $(DLLOBJS) $(LIBIMPORTOBJS) $(TESTI MPORTOBJS) $(DLLTESTOBJS)

install:
    $(MKDIR) -p $(PREFIX)/include/cryptopp $(PREFIX)/lib $(PREFIX)/bin
    -$(CP) *.h $(PREFIX)/include/cryptopp
    -$(CP) *.a $(PREFIX)/lib
    -$(CP) *.so $(PREFIX)/lib
    -$(CP) *.exe $(PREFIX)/bin

remove:
    -$(RM) -rf $(PREFIX)/include/cryptopp
    -$(RM) $(PREFIX)/lib/libcryptopp.a
    -$(RM) $(PREFIX)/lib/libcryptopp.so
    -$(RM) $(PREFIX)/bin/cryptest.exe

libcryptopp.a: $(LIBOBJS)
    $(AR) $(ARFLAGS) $@ $(LIBOBJS)
    $(RANLIB) $@

libcryptopp.so: $(LIBOBJS)
    $(CXX) $(CXXFLAGS) -shared -o $@ $(LDFLAGS) $(LIBOBJS)

cryptest.exe: libcryptopp.a $(TESTOBJS)
    $(CXX) -o $@ $(CXXFLAGS) $(TESTOBJS) ./libcryptopp.a $(LDFLAGS) $(LDLIBS)

nolib: $(OBJS)      # makes it faster to test changes
    $(CXX) -o ct $(CXXFLAGS) $(OBJS) $(LDFLAGS) $(LDLIBS)

dll: cryptest.import.exe dlltest.exe

cryptopp.dll: $(DLLOBJS)
    $(CXX) -shared -o $@ $(CXXFLAGS) $(DLLOBJS) $(LDFLAGS) $(LDLIBS) -Wl,--out-implib=libcryptopp.dll.a

libcryptopp.import.a: $(LIBIMPORTOBJS)
    $(AR) $(ARFLAGS) $@ $(LIBIMPORTOBJS)
    $(RANLIB) $@

cryptest.import.exe: cryptopp.dll libcryptopp.import.a $(TESTIMPORTOBJS)
    $(CXX) -o $@ $(CXXFLAGS) $(TESTIMPORTOBJS) -L. -lcryptopp.dll -lcryptopp.import $(LDFLAGS) $(LDLIBS)

dlltest.exe: cryptopp.dll $(DLLTESTOBJS)
    $(CXX) -o $@ $(CXXFLAGS) $(DLLTESTOBJS) -L. -lcryptopp.dll $(LDFLAGS) $(LDLIBS)

adhoc.cpp: adhoc.cpp.proto
ifeq ($(wildcard adhoc.cpp),)
    cp adhoc.cpp.proto adhoc.cpp
else
    touch adhoc.cpp
endif

%.dllonly.o : %.cpp
    $(CXX) $(CXXFLAGS) -DCRYPTOPP_DLL_ONLY -c $< -o $@

%.import.o : %.cpp
    $(CXX) $(CXXFLAGS) -DCRYPTOPP_IMPORTS -c $< -o $@

%.export.o : %.cpp
    $(CXX) $(CXXFLAGS) -DCRYPTOPP_EXPORTS -c $< -o $@

%.o : %.cpp
    $(CXX) $(CXXFLAGS) -c $<

当我执行命令“make static dynamic cryptest.exe”时出现此错误:

g++ -DNDEBUG -g -O2 -march=native -DCRYPTOPP_DISABLE_ASM -pipe -c shacal2.cpp
In file included from cryptlib.h:83:0,
                 from seckey.h:8,
                 from shacal2.h:7,
                 from shacal2.cpp:9:
stdcpp.h:9:20: fatal error: stddef.h: No such file or directory
 #include <stddef.h>
                    ^
compilation terminated.
GNUmakefile:233: polecenia dla obiektu 'shacal2.o' nie powiodły się
make: *** [shacal2.o] Błąd 1

我正在使用 cygwin 来编译它。我将不胜感激。

Answer 1

我在编译时遇到了同样的问题，现在在cygwin上似乎编译成功了。按照上一个答案(链接 http://www.cryptopp.com/wiki/Android_(Command_Line))引用的说明进行操作后，我遇到了 g++ 无法定位标题的问题。

感谢 g++ 方便的 -v 选项，我发现了问题。问题是 g++ 无法解析 cygwin 环境中的 "/opt/android-ndk-r9d/etc/..." 路径。将 -v 选项添加到 CXXFLAGS 的 GNUMakeFile 补丁显示 $ANDROID_STL_INC 和 $ANDROID_TOOLCHAIN 变量都由 setenv-android 设置.sh 脚本都属于“忽略不存在的目录...”

我通过将 $(ANDROID_TOOLCHAIN) 和 $(ANDROID_STL_INC) 替换为 WINDOWS 样式路径(例如 C:/cygwin/c/opt/android-ndk-r9d/etc/...) 和编译的库。欢呼吧。

然而，cryptest.exe 似乎失败了。将在我修复更多时更新。

更新

同样的问题，setenv-android.sh设置的$ANDROID_STL_LIB也无法解析。将 GNUMakeFile 中的 LBLIBS 替换为 WINDOWS 样式路径 C:/cygwin/c/opt/android-ndk-r9d/etc/.../libSTLport_shared.so 和完整编译。