我只是嘗試爲一個簡單的hello程序做一個ndk-build。ndk-build可執行文件未被識別爲可執行文件
Android.mk文件:
LOCAL_PATH:= $(call my-dir) # Get the local path of the project.
include $(CLEAR_VARS) # Clear all the variables with a prefix "LOCAL_"
LOCAL_SRC_FILES:=hello.cpp # Indicate the source code.
LOCAL_MODULE:= hello # The name of the binary.
LOCAL_ARM_MODE := arm
include $(BUILD_EXECUTABLE) # Tell ndk-build that we want to build a native executable.
Application.mk文件:
APP_ABI := armeabi-v7a # Define the target architecture to be ARM.
APP_STL := gnustl_static
#APP_STL := gnustl_static
APP_CPPFLAGS := -frtti -fexceptions # This is the place you enable exception.
APP_PLATFORM = android-19
源文件(HELLO.CPP):
#include <iostream>
int main(int argc, char* argv[])
{
std::cout<<"Hello from world!"<<std::endl;
for(int i=0; i<argc; ++i)
std::cout<<"Arg "<<i<<" is: "<<argv[i]<<std::endl;
return 0;
}
NDK的建造是成功:
[armeabi-v7a] Compile++ arm : hello <= hello.cpp
[armeabi-v7a] Executable : hello
[armeabi-v7a] Install : hello => libs/armeabi-v7a/hello
但我推到這個模擬器後嘗試執行,我得到這個錯誤: /系統/ bin/sh的:./hello:不是可執行文件:32位ELF文件
請與文件命令,它顯示爲: libs/armeabi-v7a/hello libs/armeabi-v7a/hello:ELF 32位LSB共享對象,ARM,EABI5版本1(SYSV),動態鏈接,解釋器/系統/ bin /連接器,汽提
CHCK與readelf: readelf --file頭庫/ armeabi-V7A /你好
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: DYN (Shared object file)
Machine: ARM
Version: 0x1
Entry point address: 0x3898
Start of program headers: 52 (bytes into file)
Start of section headers: 205324 (bytes into file)
Flags: 0x5000200, Version5 EABI, soft-float ABI
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 8
Size of section headers: 40 (bytes)
Number of section headers: 26
Section header string table index: 25
那麼,我的設置有什麼問題?只是無法弄清楚爲什麼。 在此先感謝。