ubuntu移植libcurl到Android平臺
阿新 • • 發佈：2018-11-01
簡書排版
http://www.jianshu.com/p/332011ebd6e5
最近移植了很多C++平臺的庫，很多都是後臺開發的庫，因為NDK開發，以後很可能會使用，提前預研一下。
libcurl這個庫很有名，用的人比較多，下載原始碼，直接就可以編譯使用，以前在Windows平臺下開發網路模組的時候，用到過這個庫，很強大
最近在跟後臺的人聊天過程中瞭解了很多C++開發的相關庫，這是其中一個，Android中網路操作的庫有很多種，從基本的Httpurlconnection到httpclient，volley，okhttp等等，很多選擇，使用起來也非常方便，當然了，如果在jni層下使用網路庫，libcurl是個很不錯的選擇，所以筆者決定記錄一下移植的過程，之前有移植的經驗，這個也比較簡單。
新建指令碼build_curl.sh
#!/usr/bin/env bash # ==================================================================== # Sets the cross compile environment for Android # Based upon OpenSSL's setenv-android.sh (by TH, JW, and SM). # # Crypto++ Library is copyrighted as a compilation and (as of version 5.6.2) # licensed under the Boost Software License 1.0, while the individual files # in the compilation are all public domain. # # See http://www.cryptopp.com/wiki/Android_(Command_Line) for more details # ==================================================================== unset IS_CROSS_COMPILE unset IS_IOS unset IS_ANDROID unset IS_ARM_EMBEDDED unset AOSP_FLAGS unset AOSP_SYSROOT unset AOSP_STL_INC unset AOSP_STL_LIB unset AOSP_BITS_INC # Set AOSP_TOOLCHAIN_SUFFIX to your preference of tools and STL library. # Note: 4.9 is required for the latest architectures, like ARM64/AARCH64. # AOSP_TOOLCHAIN_SUFFIX=4.8 # AOSP_TOOLCHAIN_SUFFIX=4.9 if [ -z "$AOSP_TOOLCHAIN_SUFFIX" ]; then AOSP_TOOLCHAIN_SUFFIX=4.9 fi # Set AOSP_API to the API you want to use. 'armeabi' and 'armeabi-v7a' need # API 3 (or above), 'mips' and 'x86' need API 9 (or above), etc. # AOSP_API="android-3" # Android 1.5 and above # AOSP_API="android-4" # Android 1.6 and above # AOSP_API="android-5" # Android 2.0 and above # AOSP_API="android-8" # Android 2.2 and above # AOSP_API="android-9" # Android 2.3 and above # AOSP_API="android-14" # Android 4.0 and above # AOSP_API="android-18" # Android 4.3 and above # AOSP_API="android-19" # Android 4.4 and above # AOSP_API="android-21" # Android 5.0 and above # AOSP_API="android-23" # Android 6.0 and above if [ -z "$AOSP_API" ]; then AOSP_API="android-21" fi ##################################################################### # ANDROID_NDK_ROOT should always be set by the user (even when not running this script) # http://groups.google.com/group/android-ndk/browse_thread/thread/a998e139aca71d77. # If the user did not specify the NDK location, try and pick it up. We expect something # like ANDROID_NDK_ROOT=/opt/android-ndk-r10e or ANDROID_NDK_ROOT=/usr/local/android-ndk-r10e. export ANDROID_NDK_ROOT=/workspace/android-ndk-r10e if [ -z "$ANDROID_NDK_ROOT" ]; then ANDROID_NDK_ROOT=$(find /opt -maxdepth 1 -type d -name android-ndk-r10* 2>/dev/null | tail -1) if [ -z "$ANDROID_NDK_ROOT" ]; then ANDROID_NDK_ROOT=$(find /usr/local -maxdepth 1 -type d -name android-ndk-r10* 2>/dev/null | tail -1) fi if [ -z "$ANDROID_NDK_ROOT" ]; then ANDROID_NDK_ROOT=$(find $HOME -maxdepth 1 -type d -name android-ndk-r10* 2>/dev/null | tail -1) fi fi # Error checking if [ ! -d "$ANDROID_NDK_ROOT/toolchains" ]; then echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it." [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1 fi ##################################################################### if [ "$#" -lt 1 ]; then THE_ARCH=armv7 else THE_ARCH=$(tr [A-Z] [a-z] <<< "$1") fi # https://developer.android.com/ndk/guides/abis.html case "$THE_ARCH" in arm|armv5|armv6|armv7|armeabi) TOOLCHAIN_BASE="arm-linux-androideabi" TOOLNAME_BASE="arm-linux-androideabi" AOSP_ABI="armeabi" AOSP_ARCH="arch-arm" AOSP_FLAGS="-march=armv5te -mtune=xscale -mthumb -msoft-float -funwind-tables -fexceptions -frtti" ;; armv7a|armeabi-v7a) TOOLCHAIN_BASE="arm-linux-androideabi" TOOLNAME_BASE="arm-linux-androideabi" AOSP_ABI="armeabi-v7a" AOSP_ARCH="arch-arm" AOSP_FLAGS="-march=armv7-a -mthumb -mfpu=vfpv3-d16 -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti" ;; hard|armv7a-hard|armeabi-v7a-hard) TOOLCHAIN_BASE="arm-linux-androideabi" TOOLNAME_BASE="arm-linux-androideabi" AOSP_ABI="armeabi-v7a" AOSP_ARCH="arch-arm" AOSP_FLAGS="-mhard-float -D_NDK_MATH_NO_SOFTFP=1 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti -Wl,--no-warn-mismatch -Wl,-lm_hard" ;; neon|armv7a-neon) TOOLCHAIN_BASE="arm-linux-androideabi" TOOLNAME_BASE="arm-linux-androideabi" AOSP_ABI="armeabi-v7a" AOSP_ARCH="arch-arm" AOSP_FLAGS="-march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti" ;; armv8|armv8a|aarch64|arm64|arm64-v8a) TOOLCHAIN_BASE="aarch64-linux-android" TOOLNAME_BASE="aarch64-linux-android" AOSP_ABI="arm64-v8a" AOSP_ARCH="arch-arm64" AOSP_FLAGS="-funwind-tables -fexceptions -frtti" ;; mips|mipsel) TOOLCHAIN_BASE="mipsel-linux-android" TOOLNAME_BASE="mipsel-linux-android" AOSP_ABI="mips" AOSP_ARCH="arch-mips" AOSP_FLAGS="-funwind-tables -fexceptions -frtti" ;; mips64|mipsel64|mips64el) TOOLCHAIN_BASE="mips64el-linux-android" TOOLNAME_BASE="mips64el-linux-android" AOSP_ABI="mips64" AOSP_ARCH="arch-mips64" AOSP_FLAGS="-funwind-tables -fexceptions -frtti" ;; x86) TOOLCHAIN_BASE="x86" TOOLNAME_BASE="i686-linux-android" AOSP_ABI="x86" AOSP_ARCH="arch-x86" AOSP_FLAGS="-march=i686 -mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti" ;; x86_64|x64) TOOLCHAIN_BASE="x86_64" TOOLNAME_BASE="x86_64-linux-android" AOSP_ABI="x86_64" AOSP_ARCH="arch-x86_64" AOSP_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti" ;; *) echo "ERROR: Unknown architecture $1" [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1 ;; esac # Based on ANDROID_NDK_ROOT, try and pick up the path for the tools. We expect something # like /opt/android-ndk-r10e/toolchains/arm-linux-androideabi-4.7/prebuilt/linux-x86_64/bin # Once we locate the tools, we add it to the PATH. AOSP_TOOLCHAIN_PATH="" for host in "linux-x86_64" "darwin-x86_64" "linux-x86" "darwin-x86" do if [ -d "$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_BASE-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" ]; then AOSP_TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_BASE-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" break fi done ##################################################################### # Error checking if [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API" ]; then echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script." [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1 elif [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH" ]; then echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script." [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1 fi # Android SYSROOT. It will be used on the command line with --sysroot # http://android.googlesource.com/platform/ndk/+/ics-mr0/docs/STANDALONE-TOOLCHAIN.html export AOSP_SYSROOT="$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH" # TODO: export for the previous GNUmakefile-cross. These can go away eventually. export ANDROID_SYSROOT=$AOSP_SYSROOT ##################################################################### export CPP="$AOSP_TOOLCHAIN_PATH/$TOOLNAME_BASE-cpp --sysroot=$AOSP_SYSROOT" export CC="$AOSP_TOOLCHAIN_PATH/$TOOLNAME_BASE-gcc --sysroot=$AOSP_SYSROOT" export CXX="$AOSP_TOOLCHAIN_PATH/$TOOLNAME_BASE-g++ --sysroot=$AOSP_SYSROOT" export CFLAGS="-pie -fPIE" export LDFLAGS="-pie -fPIE" ##################################################################### export PREFIX=/usr/local/curl/$AOSP_ABI export CC="$AOSP_TOOLCHAIN_PATH/$TOOLNAME_BASE-gcc --sysroot=$AOSP_SYSROOT" VERBOSE=1 if [ ! -z "$VERBOSE" ] && [ "$VERBOSE" != "0" ]; then echo "ANDROID_NDK_ROOT: $ANDROID_NDK_ROOT" echo "AOSP_TOOLCHAIN_PATH: $AOSP_TOOLCHAIN_PATH" echo "AOSP_ABI: $AOSP_ABI" echo "AOSP_API: $AOSP_API" echo "CC: $CC" echo "AOSP_SYSROOT: $AOSP_SYSROOT" fi ./configure \ --prefix=$PREFIX \ --enable-static \ --enable-shared \ --host=$TOOLNAME_BASE [ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
build_all.sh
#!/bin/bash
for arch in armeabi armeabi-v7a armeabi-v7a-hard arm64-v8a mips mips64 x86 x86_64
do
bash build_curl.sh $arch
make
sudo make install
done
目錄結構
|—curl原始碼目錄
|—build_curl.sh
|—build_all.sh
|—...
執行指令碼
sh build_all.sh
編譯成功之後
在/usr/local/curl目錄裡
###測試一下
新建JNI目錄，將剛才生成的armeabi目錄裡的include資料夾和lib資料夾複製進去
新建Android.mk檔案
LOCAL_PATH := $(call my-dir)
#libcurl庫
include $(CLEAR_VARS)
LOCAL_MODULE := libcurl
LOCAL_SRC_FILES := lib/libcurl.a
include $(PREBUILT_STATIC_LIBRARY)
#測試程式
include $(CLEAR_VARS)
LOCAL_MODULE := main
LOCAL_SRC_FILES := main.cpp
LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
LOCAL_LDLIBS := -llog -lz
LOCAL_STATIC_LIBRARIES := libcurl
LOCAL_CFLAGS += -pie -fPIE
LOCAL_LDFLAGS += -pie -fPIE
include $(BUILD_EXECUTABLE)
新建Application.mk新增對C++的支援
APP_ABI := armeabi
APP_PLATFORM := 12
APP_CPPFLAGS += -fexceptions -frtti
APP_STL := stlport_static
新建原始檔
#include <curl/curl.h>
#include <iostream>
using namespace std;
int main(int argc,char * argv[])
{
//定義CURL型別的指標
CURL * curl;
//定義CURLcode型別的變數，儲存返回狀態碼
CURLcode res;
//初始化一個CURL型別的指標
curl = curl_easy_init();
if(curl!=NULL)
{
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
//curl_easy_setopt(curl, CURLOPT_WRITEDATA, recv);
res = curl_easy_perform(curl);
if(res != CURLE_OK){
cout << curl_easy_strerror(res) << endl;
}
//清除curl操作.
curl_easy_cleanup(curl);
}
return 0;
}
目錄結構
編譯生成
ndk-build
最後push到手機上執行
