Development release 20120911 of mspgcc is now available. This is a development release. It is beta-quality. It provides full support for 20-bit code and data, with all memory models. There are no changes intended in this series; the only reason it isn't going into LTS is to validate it on Wolverine chips when they become available.
The sole documentation for 20-bit use is at: https://sourceforge.net/apps/mediawiki/mspgcc/index.php?title=Gcc47:20-Bit_Design The page has been updated with this release. There are no known bugs related to 20-bit mode, except when dealing with mixed memory models which are not officially supported. All memory models should work. All optimizations and features intended for this development phase have been completed. Subsequent changes should be for bug fixes only. The following known limitations are present: * All the 20-bit features were intended to be controlled through type and declaration attributes, with default settings controlled by compiler flags. While this is still how it is implemented, gcc is not prepared to deal with the sort of mixed pointers that individual control enables. See https://sourceforge.net/apps/mediawiki/mspgcc/index.php?title=Gcc47:20-Bit_Design#Warning_about_Mixing_Memory_Models, and stick to the pre-defined memory models. * DWARF2 data for CPUX MCUs now uses 32 bits for addresses instead of 16 bits. This enables building application with -ggdb when 20-bit addresses are present. However, gdb has not been updated to recognize this change, and gdb on CPUX MCUs is probably no longer usable. The patch bundle for 20120911 is available at: https://sourceforge.net/projects/mspgcc/files/mspgcc/DEVEL-4.7.x The tag workspace/release/20120911 in git://mspgcc.git.sourceforge.net/gitroot/mspgcc/mspgcc checks out a workspace configured for this release. The tag workspace/master checks out a workspace configured for the development series. Downstream packagers: If you bundle this, please mark it as experimental. The stable series remains LTS-20120406. As usual, please submit problems as tracker tickets at: https://sourceforge.net/tracker/?group_id=42303&atid=432701 Summary of changes in mspgcc release 20120911 since release 20120716 binutils: changes from binutils-2.22-20120716 to binutils-2.22-20120911: - 3d91e75 [2012-09-11 09:15:14 -0500] Update DEV-PHASE for release - d5323c6 [2012-09-10 10:45:37 -0500] SF 3554291 refine FRAM ISR fix gcc: changes from gcc-4.7.0-20120716 to gcc-4.7.0-20120911: - 47f3bbe [2012-09-11 09:14:43 -0500] Update DEV-PHASE for release - 51db7cb [2012-09-11 09:14:05 -0500] Update for release - 37e318e [2012-09-10 17:08:04 -0500] SF 3559978 broken volatile peephole optimization - d74f307 [2012-09-10 15:36:30 -0500] SF 3562647 lack of memory model results in wrong data region - e1a7bb5 [2012-09-10 12:37:00 -0500] SF 3562063 delay_cycles wrong when optimization disabled - 6acad2c [2012-09-10 11:10:27 -0500] SF 3554285 ICE: defining a far declared array w/o far - cd8d8b5 [2012-09-10 07:59:24 -0500] SF 3554291 refine FRAM ISR fix gdb: no changes msp430-libc: no changes msp430mcu: no changes ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Mspgcc-users mailing list Mspgcc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mspgcc-users
