Solved

Using Interrupts in gcc

Posted on 2001-08-23
3
1,071 Views
Last Modified: 2008-03-06
When i use gcc to compile, how do I use Interrupts? Like i have int86() func. in turboC .
0
Comment
Question by:rasaraja
3 Comments
 
LVL 1

Expert Comment

by:nhuanvn
ID: 6424172
Don't think that you can direct gcc to *use* interrupts.
If you have a function and you want it to be an ISR,
then somewhere in your program, make a system call to
signal. See man pages for gcc and signal for more
information. Just type
   man gcc <Enter>
   man signal <Enter>
Btw, I see it in your profile that you have so many B and C
grades for solutions. You may not receive useful answers
then.
0
 

Author Comment

by:rasaraja
ID: 6425792
Thanks for the grade tip.I never really noticed this !!
I'll see the man pages :-)
0
 
LVL 5

Accepted Solution

by:
bryanh earned 50 total points
ID: 6449198
Using interrupts isn't really a matter of the compiler you use or even of the programming language you use.  It's an operating system matter.  I don't know what int86() in Turbo C is, but I doubt it's a feature of Turbo C as much as it's a feature of the operating system your Turbo C function runs on.

In Linux, if you want a user program to respond to a hardware interrupt, you write a device driver and install it with insmod.  Your program typically does a read() which causes that device driver to be invoked and doesn't return until the interrupt in question occurs.
 
If you want a program to be "interrupted" by an interrupt, you have it use signal() to set up a signal handler, then you have a second process wait for the interrupt with read() and then signal the first process (with kill()).

More often, if you're interested in hardware interrupts, you just write your entire program as a device driver and insmod it.

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Have you ever been frustrated by having to click seven times in order to retrieve a small bit of information from the web, always the same seven clicks, scrolling down and down until you reach your target? When you know the benefits of the command l…
The purpose of this article is to fix the unknown display problem in Linux Mint operating system. After installing the OS if you see Display monitor is not recognized then we can install "MESA" utilities to fix this problem or we can install additio…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now