Hi Joerg, Consider it my first patch proposal. :)
- Jose On Wed, May 26, 2010 at 1:17 AM, Joerg Wunsch <invalid.nore...@gnu.org>wrote: > > Update of bug #29964 (project avr-libc): > > Status: Need Info => Invalid > Open/Closed: Open => Closed > > _______________________________________________________ > > Follow-up Comment #3: > > Hi Jose, > > for a simple test, you could just compile and link an empty main(), > and run it through the disassembler. That will show you the vector > table is fine for both devices. Btw., be assured if they weren't, the > Arduino folks would have told us long before. ;-) > > > Are the addresses properly computed because of the following? > > _VECTORS_SIZE is part of the story: if you look into gcrt1.S, you'll > notice it determines how many vectors will actually be emitted. > > The size logic itself is hidden behind the XJMP macro which comes from > common/macros.inc. It uses the (misnamed) macro __AVR_MEGA__ which is > set by the compiler to determine whether to emit a JMP or RJMP > instruction (which in turn determines the size of a vector table > slot). This should use __AVR_HAVE_JMP_CALL__ instead, but this one is > only available starting with GCC 4.3, and we'd like to be backwards > compatible. We should perhaps check for the GCC version, and then use > wither __AVR_MEGA__ or __AVR_HAVE_JMP_CALL__, depending on the > version, so __AVR_MEGA__ could eventually be retired. Feel free to > submit a patch for this if you like (preferrably, tested against > different compiler versions... ;-). > > > _______________________________________________________ > > Reply to this item at: > > <http://savannah.nongnu.org/bugs/?29964> > > _______________________________________________ > Message sent via/by Savannah > http://savannah.nongnu.org/ > > _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
