Re: [PATCH v2 1/4] alpha/uapi: do not expose kernel-only stack frame structures

[John Paul Adrian Glaubitz]

Hi Ivan,

On Fri, 2025-01-31 at 11:41 +0100, Ivan Kokshaysky wrote:
> Parts of asm/ptrace.h went into UAPI with commit 96433f6ee490
> ("UAPI: (Scripted) Disintegrate arch/alpha/include/asm") back in 2012.
> At first glance it looked correct, as many other architectures expose
> 'struct pt_regs' for ptrace(2) PTRACE_GETREGS/PTRACE_SETREGS requests
> and bpf(2) BPF_PROG_TYPE_KPROBE/BPF_PROG_TYPE_PERF_EVENT program
> types.
> 
> On Alpha, however, these requests have never been implemented;
> 'struct pt_regs' describes internal kernel stack frame which has
> nothing to do with userspace. Same applies to 'struct switch_stack',
> as PTRACE_GETFPREG/PTRACE_SETFPREG are not implemented either.
> 
> Move this stuff back into internal asm, where we can ajust it

Typo: ajust => adjust


Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913