Terence,
Is your print statement working or does that not show up either?
On Friday, August 3, 2012 5:04:21 AM UTC-7, Terence Yeong wrote:
>
> Hi guys,
>
> I'm a student doing a project where I have to interrupt the init process
> of Android. As we all know, init is the program that is run after the
> kernel boots up.
>
> In the source code of init.c, I made the following changes to main():
>
> int main(int argc, char **argv)
> {
> int fd_count = 0;
> struct pollfd ufds[4];
> char *tmpdev;
> ...
>
> // START OF MY EDIT IN PSEUDOCODE
> fputs("Press enter to start test tool\n", stdout);
> if (user input received)
> {
> execve("./system/bin/test_tool", NULL, NULL);
> }
> // END OF MY EDIT
>
> // rest of init.c
> ...
> }
>
> Upon first boot up, I adb push test_tool (which is a properly compiled ARM
> executable for Linux) to system/bin/ and chmod it to 777, then do a reboot.
>
> As far as I know, execve should never return if executed successfully.
> However, I'm still seeing the rest of the init process being executed,
> which should mean that execve is not working?
>
>
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