https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118764
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Georg-Johann Lay <g...@gcc.gnu.org>: https://gcc.gnu.org/g:cb27337f9f4956e6eb634b26a7999ea68063f58a commit r15-7390-gcb27337f9f4956e6eb634b26a7999ea68063f58a Author: Georg-Johann Lay <a...@gjlay.de> Date: Thu Feb 6 11:28:28 2025 +0100 AVR: Add support for a Compact Vector Table (-mcvt). Some AVR devices support a CVT: - Devices from the 0-series, 1-series, 2-series. - AVR16, AVR32, AVR64, AVR128 devices. The support is provided by means of a startup code file crt<mcu>-cvt.o from AVR-LibC v2.3 that can be linked instead of the traditional crt<mcu>.o. This patch adds a new command line option -mcvt that links that CVT startup code (or issues an error when the device doesn't support a CVT). PR target/118764 gcc/ * config/avr/avr.opt (-mcvt): New target option. * config/avr/avr-arch.h (AVR_CVT): New enum value. * config/avr/avr-mcus.def: Add AVR_CVT flag for devices that support it. * config/avr/avr.cc (avr_handle_isr_attribute) [TARGET_CVT]: Issue an error when a vector number larger that 3 is used. * config/avr/gen-avr-mmcu-specs.cc (McuInfo.have_cvt): New property. (print_mcu) <*avrlibc_startfile>: Use crt<mcu>-cvt.o depending on -mcvt (or issue an error when the device doesn't support a CVT). * doc/invoke.texi (AVR Options): Document -mcvt.
