On 24 November 2015 at 20:52, Andrew Jones <drjo...@redhat.com> wrote: > > I've pulled a v2 together that I'll be testing and posting soon. Here's > what I decided to do > > 1) Throw the fp registers in. Why not? > 2) No linux-headers update, as we'd also need > include/uapi/linux/elfcore.h and arch/arm/include/asm/user.h. > However I've added comments stating where the structs come from. > 3) Base the vmcore type on the guest kernel, i.e. use arm_el_is_aa64() > and (env->cp15.sctlr_el[1] & SCTLR_EE). However, > aarch64_write_elf64_note() will shoehorn 32-bit state into 64-bit > elf notes when the current state is 32-bit. Those analyzing the > dumps will need to look at the captured pstate to determine the > endianness of the registers.
Not sure what you have in mind by "endianness of the registers" -- typically registers aren't thought of as having endianness. Also, if we're currently executing a 32-bit guest when we take the core dump, you probably need to call aarch64_sync_32_to_64() somewhere. thanks -- PMM
