On 23.03.2021 15:00:55, Rasmus Villemoes wrote: [...] > So let us guess that it's the ABI choice -mabi=apcs-gnu > > $ arm-linux-gnueabihf-gcc -O2 -msoft-float -mabi=apcs-gnu -Q > --help=target | grep struct > -mstructure-size-boundary= 32 > > Bingo. (-msoft-float is also included just as in the real command line > because gcc barfs otherwise). > > Now what CONFIG_* knobs are responsible for putting -mabi=apcs-gnu in > CFLAGS is left as an exercise for the reader. Regardless, it is not a > bug in the compiler. The error is the assumption that this language For the record: If CONFIG_AEABI is not set "-mabi=apcs-gnu" is used, which leads to the bigger structure size boundary. | ifeq ($(CONFIG_AEABI),y) | CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp | else | CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) | endif regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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