Claude Sylvain <[EMAIL PROTECTED]> wrote: > Is it possible to get this source code from some place ?
Of course, as WinAVR is only compiling and shipping opensource packages, so obviously, there must be source code available. In this case, you can get it from the avr-libc distribution: http://download.savannah.gnu.org/releases/avr-libc/ Alternatively, you could go to the project's web pages, and browse the CVS: http://cvs.savannah.nongnu.org/viewcvs/?root=avr-libc The run-time startup code is located in the subdirectory crt1. > Everybody knows that it can be usefull to make a custom Startup Code > for doing special initialization. It's not commonly required to customize it, much less than you obviously believe. The GCC/avr-libc system is rather flexible, so most people can do what they need without directly manipulating that code. Out of several thousands of avr-libc users, I can't remember very many people who really had to modify that code in order to get their customization done. > So, how come the Startup Code source is not included in the WinAVR > distribution ? Previous WinAVR releases have indeed been accompanied by a full source code release, but I believe it wasn't very popular, so Eric instead replaced that by a list of pointers where to get the respective source code. I bet you could have found the above URLs there as well. ;-) Remember that the stack pointer is currently initialized twice: once in the startup code, and another time at the beginning of main(). The latter is rather historical baggage, and might go away in a future release. (For new AVRs, it's actually initialed three times: the hardware itself initializes the SP to the top of internal RAM now.) Thus, the officially supported interface to relocate the stack is to redefine the symbol __stack on the linker command-line to a different value. This will affect both places, the run-time code as well as the beginning of main(), as they both use that symbol. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) _______________________________________________ AVR-GCC-list mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
