2015-10-08 22:02 GMT+03:00 Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>: > --- a/arch/arm64/kernel/image.h > +++ b/arch/arm64/kernel/image.h > @@ -59,4 +59,31 @@ > _kernel_offset_le = DATA_LE64(TEXT_OFFSET); \ > _kernel_flags_le = DATA_LE64(__HEAD_FLAGS); > > +#ifdef CONFIG_EFI > + > +/* > + * The EFI stub has its own symbol namespace prefixed by __efistub_, to > + * isolate it from the kernel proper. The following symbols are legally > + * accessed by the stub, so provide some aliases to make them accessible. > + * Only include data symbols here, or text symbols of functions that are > + * guaranteed to be safe when executed at another offset than they were > + * linked at. The routines below are all implemented in assembler in a > + * position independent manner > + */ > +__efistub_memcmp = __pi_memcmp; > +__efistub_memchr = __pi_memchr; > +__efistub_memcpy = __pi_memcpy; > +__efistub_memmove = __pi_memmove; > +__efistub_memset = __pi_memset; > +__efistub_strlen = __pi_strlen; > +__efistub_strcmp = __pi_strcmp; > +__efistub_strncmp = __pi_strncmp; > +__efistub___flush_dcache_area = __pi___flush_dcache_area; So why we need these __pi_* aliases? We could just do __efistub_memcmp = memcmp; Right? > + > +__efistub__text = _text; > +__efistub__end = _end; > +__efistub__edata = _edata; > + > +#endif -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
