| Message ID | 4F4CAFD1.4090305@gjlay.de |
|---|---|
| State | New |
| Headers | show |
2012/2/28 Georg-Johann Lay <avr@gjlay.de>: > This patch is addendum to support skip of 2-word instructions as of PR49939 and > the extension made in > > http://gcc.gnu.org/viewcvs?view=revision&revision=177049 > > gas emits a warning if it sees a skip of 2-word instruction for cores that > might have the skip bug. However, only specific devices are affected by this > silicon bug, namely ATmega103 and AT90S8515. > > The patch adds -mno-skip-bug option to gas's command line except for the cases > where the core might have the bug, i.e. > > o no -mmcu specified at all > o -mmcu=atmega103 > o -mmcu=at90s8515 > o -mmcu=avr31 > o -mmcu=avr2 > > Ok for the trunk? > > Johann > > * config/avr/avr.h (ASM_SPEC): Add -mno-skip-bug if we know that > the device does not have the skip-bug. Ok. Denis.
Index: config/avr/avr.h =================================================================== --- config/avr/avr.h (revision 184618) +++ config/avr/avr.h (working copy) @@ -595,7 +595,9 @@ extern const char *avr_device_to_devicel pass to `cc1plus'. */ #define ASM_SPEC "%{mmcu=avr25:-mmcu=avr2;mmcu=avr35:-mmcu=avr3;mmcu=avr31:-mmcu=avr3;mmcu=avr51:-mmcu=avr5;\ -mmcu=*:-mmcu=%*}" +mmcu=*:-mmcu=%*} \ +%{mmcu=*:%{!mmcu=avr2:%{!mmcu=at90s8515:%{!mmcu=avr31:%{!mmcu=atmega103:\ +-mno-skip-bug}}}}}" #define LINK_SPEC "\ %{mrelax:--relax\