Cannot create gcc executable in Eclipse

Question

0.00/5 (No votes)

See more:

I am developing a Java program in Eclipse. I need to compile a input C file in this Java program. So I used the below code.

Java

Process process = Runtime.getRuntime().exec(new String[]{
     "C:/cygwin/bin/bash", 
     "-c", 
     "/usr/bin/gcc /cygdrive/d/MyFile.c -o /cygdrive/d/MyExe"});

I have installed Cygwin as well. But I could not create MyExe.exe from executing above code.

Inserting "-c" next to gcc command successfully creates object file (MyExe.o). Also when I run this program outside Eclipse (using command prompt) it creates .exe correctly.

Can somebody tell me what is the wrong with this code?

Posted 3-Jul-12 19:04pm

NewMember2000

Updated 3-Jul-12 19:25pm

Sandeep Mewara

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Peter_in_2780 · Answer 1 · 2012-07-03T19:23:00

Solution 1

I'm pretty sure it's because you are trying to mix two ways of passing the arguments to exec().
Try this:

Java

Process process = Runtime.getRuntime().exec(new String[]{
"C:/cygwin/bin/bash",
"-c /usr/bin/gcc",
"/cygdrive/d/MyFile.c",
"-o /cygdrive/d/MyExe"});

or

Java

Process process = Runtime.getRuntime().exec(
"C:/cygwin/bin/bash -c /usr/bin/gcc /cygdrive/d/MyFile.c -o /cygdrive/d/MyExe");

Cheers,
Peter

Posted 3-Jul-12 19:23pm

Peter_in_2780

v2

Comments

NewMember2000 4-Jul-12 1:50am

thank you for the solution. But the above 2 methods also does not creates .exe

1 methods outputs the below error...
------------------------------------------------------------------------------
/usr/bin/bash: - : invalid option
Usage: /usr/bin/bash [GNU long option] [option] ...
/usr/bin/bash [GNU long option] [option] script-file ...
GNU long options:
--debug
--debugger
--dump-po-strings
--dump-strings
--help
--init-file
--login
--noediting
--noprofile
--norc
--posix
--protected
--rcfile
--restricted
--verbose
--version
Shell options:
-irsD or -c command or -O shopt_option (invocation only)
-abefhkmnptuvxBCHP or -o option
-----------------------------------------------------------------------------

2nd method gives the below error...
-----------------------------
gcc: no input files
-----------------------------