RFC: ARM: Support for VFP/NEON registers in coredumps
Ulrich.Weigand at de.ibm.com
Fri Mar 25 13:40:24 UTC 2011
Dave Martin <dave.martin at linaro.org> wrote:
> I was indeed thinking that it might be a good idea to take this
> opportunity to migrate to using regsets; though for simplicity, I'll
> probably avoid this for the first iteration.
> Will this have any impact on the ptrace interface?
Well, once you support regsets, the PTRACE_GETREGSET/PTRACE_SETREGSET
commands will start working. However, on platforms that already had
commands to access registers, platform-specific code will of course
need to continue to support those.
See e.g. arch/powerpc/kernel/ptrace.c, which by now implements all
of its legacy ptrace register commands in terms of regset functions.
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STSM, GNU compiler and toolchain for Linux on System z and Cell/B.E.
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