On Wed, Aug 20, 2014 at 05:50:02PM +0800, Wang Long wrote: > when use macro 'kputc' kphex' to print the content of > register r0-r3, they will corrupts these registers. > > the same as the macro 'debug_reloc_start' and 'debug_reloc_end'. > > so using 'push' when enter the macro and 'pop' when leave > the macro to fix it.
NAK. These are expected to corrupt r0-r3, and it is expected that users of these macros save r0-r3 if they contain important values. This is especially important as these get used in places where there is no stack to save registers. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
