C++ make后如何运行.o文件
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how to run the .o file after make
提问by user3293434
I have been trying to run a c++ program from https://github.com/rinon/Simple-Homomorphic-Encryption
我一直在尝试从https://github.com/rinon/Simple-Homomorphic-Encryption运行 C++ 程序
As specified in the READMEI have run the following commands,
正如README我已经运行了以下命令中指定的那样，
make
make test
make demo
Now, I have the following files in my directory,
现在，我的目录中有以下文件，
zakirhussain@zakirhussain-K52F:~/Simple-Homomorphic-Encryption$ ls
circuit.cpp demo_vote_counter.cpp fully_homomorphic.cpp main.o security_settings.h test_suite.o utilities.o
circuit.h demo_vote_counter.h fully_homomorphic.h makefile security_settings.o type_defs.h
circuit.o demo_vote_counter.o fully_homomorphic.o README test_fully_homomorphic utilities.c
demo_fully_homomorphic fully_homomorphic main.cpp security_settings.cpp test_suite.cpp utilities.h
Could someone help me with running demo_vote_counter.ofile?
有人可以帮我运行demo_vote_counter.o文件吗？
回答by Marc Claesen
An object file(.o) is not executable. You want to be running ./demo_fully_homomorphic(e.g. the file without extension). Make sure you have execute permissions (chmod a+x demo_fully_homomorphic).
一个目标文件（.o）是不可执行的。您想要运行./demo_fully_homomorphic（例如没有扩展名的文件）。确保您具有执行权限 ( chmod a+x demo_fully_homomorphic)。
回答by Devolus
You can not run a .ofile. This is an object file and has to be linked into the final executable. A .ofile is usually lacking additional libraries, which are added at the linking stage.
你不能运行一个.o文件。这是一个目标文件，必须链接到最终的可执行文件中。甲.o文件通常缺乏附加的库，其在该连接阶段加入。
Looking at your outoput I would assume that one of demo_fully_homomorphic, test_fully_homomorphicor fully_homomorphicare the executables that you can run.
查看您的输出，我会假设其中之一demo_fully_homomorphic，test_fully_homomorphic或者fully_homomorphic是您可以运行的可执行文件。
回答by KedarX
As already mentioned in several other answers, you can execute a binary file and not the object file. However, Just in case, if what you want is to display the contents of object file in readable format?
正如其他几个答案中已经提到的，您可以执行二进制文件而不是目标文件。但是，以防万一，如果您想要以可读格式显示目标文件的内容？
$>objdump -d object_filename.o
回答by tebe
You can't run the object file. It has to be linked first to make an executable.
您无法运行目标文件。必须先链接它才能生成可执行文件。
As I see there is a "demo_fully_homomorphic" "fully_homomorphic" and a "test_fully_homomorphic" in your directory. Those are your linked executables, you may execute them with ./[executable_name]
正如我所看到的，您的目录中有一个“demo_fully_homomorphic”、“fully_homomorphic”和一个“test_fully_homomorphic”。这些是您链接的可执行文件，您可以使用 ./[executable_name] 执行它们
回答by Dan
In this case the executable is called demo_fully_homomorphic, try
在这种情况下，可执行文件被调用demo_fully_homomorphic，尝试
./demo_fully_homomorphic
回答by Cuong Vo
I think I am late, but the code below maybe helpful for someone, I guess.
我想我迟到了，但我猜下面的代码可能对某人有帮助。
Using cd into your folder contains the c/c++ file, then compile it.
使用 cd 进入包含 c/c++ 文件的文件夹，然后编译它。
gcc my_test.c -o my_test
Complied file will be generated. Then still in same folder. Run the command.
将生成编译文件。然后仍然在同一个文件夹中。运行命令。
./my_test
