Hi Jason,
McMullan, Jason schrieb:
On Wed, 2008-06-25 at 07:44 +0200, Jens Gehrlein wrote:
I have the same problem. When I modify the source code the compiler may or may not rearrange the functions. It is not guaranteed, that the main function always starts at the same address.
How can this be solved? Is it possible/meaningful to put the main function into a separate linker segment? Any suggestions?
The simplest way I've found is to make the following C file:
--- _start.c --- void _start(void) { extern int main(int argc, char **argv); char *args[] = { "myprogramname", "-foo", "bar", /* etc. etc. */ }; main(sizeof(args)/sizeof(args[0]), args); /* Wait forever after the program ends */ for (;;); }
Then, link '_start.o' before *any* other objects in your link step.
Voila! The text entry should be _start!
Feel free to add BSS initialization, etc. in _start as needed.
Very nice. Thank you for this tip!
Best Regards, Jens