Messages in this thread | | | Date | Thu, 24 Feb 2022 11:12:07 -0600 | From | Segher Boessenkool <> | Subject | Re: [PATCH 2/3] powerpc: fix build errors |
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On Thu, Feb 24, 2022 at 03:05:28PM +1000, Nicholas Piggin wrote: > + * gcc 10 started to emit a .machine directive at the beginning of generated > + * .s files, which overrides assembler -Wa,-m<cpu> options passed down. > + * Unclear if this behaviour will be reverted.
It will not be reverted. If you need a certain .machine for some asm code, you should write just that!
> +#ifdef CONFIG_CC_IS_GCC > +#if (GCC_VERSION >= 100000) > +#if (CONFIG_AS_VERSION == 23800) > +asm(".machine any"); > +#endif > +#endif > +#endif > +#endif /* __ASSEMBLY__ */
Abusing toplevel asm like this is broken and you *will* end up with unhappiness all around.
Segher
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