On Thu, Jul 11, 2019 at 03:36:03PM +0200, Mark Wielaard wrote: > > the EM_CSKY_OLD equals to 39. We have changed the EM number to 252 in > > our newly released toolchain with compatibility to EM_CSKY_OLD. > > See binutils/include/elf/common.h: > > /* C-SKY historically used 39, the same value as MCORE, from which > > the > > architecture was derived. */ > > #define EM_CSKY_OLD EM_MCORE > > Aha. But that is unfortunate on 2 levels. First EM_MCORE isn't an > official e_machine name. The value 39 is associated with EM_RCE for the > Morotola RCE. I assume those are the same thing? > Yes, they are the same thing.
#define EM_MCORE 39 /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */ #define EM_RCE 39 /* Old name for MCore */ > Second, it makes it hard to check the elfutils backend since you'll > have to comment out all EM_RCE usage, and change the EM_CSKY to the old > value. > > Do you have any binaries/core files generated by an upstream toolchain > that uses the assigned ELF values? That would be really helpful running > some tests. > I've generated binaries/core with an upstream toolchain, however the divzero testcase doesn't cause any coredump, so I used a zeroptr testcase instead. https://github.com/c-sky/test-result/blob/master/elfutils/zeroptr https://github.com/c-sky/test-result/raw/master/elfutils/core.zeroptr Thanks, Mao Han
