Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

use of vfork() instead of fork() in uClinux

Hi all,

I ported pppd from busybox on the Nios2. Actually, I just did two things :

- add the -Wl,-elf2flt linker flags to convert the binary file

- changed calls to fork() by vfork()

It seems everything goes right, but I wonder if it is authorized to use vfork() instead of fork() ? Do I risk anything by doing this ? Do I have to expect pppd to crash, or is it completely safe ?

Thanks for any comments,

Regards

Pod

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    19 years ago

    You aren't supposed to change all of hte calls manually in the source code.. you can add a compile flag -Dfork=vfork ... or something like that (look at the compile for busybox). That will automatically change them for you. But it should be safe doing this, in most instances..