• State Not Answered
  • Locked Locked
  • Replies 16 replies
  • Subscribers 22 subscribers
  • Views 12228 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Where is __main?

Jani Jani

We use Keil tools to generate C++ embedded application that run in our embedded controller.

My initialization code jumps to __main as follows:

IMPORT __main LDR R0, =__main BX R0

Wher is "__main" ?

I searched C:\Keil but could not find definition of __main.

This is what my map file says about __main

__main 0x00008308 ARM Code 8 __main.o(!!!main)

My application starts at 0x8000. __main is at 0x00008308. Where is __main.o ?

Parents Reply Children
  • 0 in reply to Jerry Bisjit

    Correct me if i am wrong

    The os_sys_init(MasterTask) is called before termination.
    Hence it is valid if the while(1) statement is not written at the end of main(), because the controller executes "os_idle_demon()" even if there are no other tasks. And other tasks, if present, also have code written in infinite loop. Hence the controller will always have atleast one infinite loop.

    int main(void)
{
    .
    .
    .


    os_sys_init(MasterTask);

    //while(1);     //
}

  • 0 in reply to Being Human

    Currently, I'm not working on this project. If I resume this project, I'll continue the thread.

    Thank you so much for valuable feedback.

  • 0 in reply to Amer Naseem

    We downgraded to Keil uVision4 version 4.54 and I'm still unable to hit my main().

    I am stuck in Keil's code as follows:

    Filename RT_Agent.c

    void _sys_exit (int return_code) {
  /* Endless loop. */
  while (1);
}

    And idea why I'm stuck in this while(1).