On 02/14, H. Peter Anvin wrote: > > On 02/14/2013 07:00 AM, Oleg Nesterov wrote: >> On 02/14, Denys Vlasenko wrote: >>> >>> Determining personality of a ptraced process is a murky area. >>> On x86, for years strace was looking at segment selectors, >>> which is conceptually wrong: see, for example, >>> https://lkml.org/lkml/2012/1/18/320 >>> > > One proposal that keeps being on the table is to export a regset with > metadatam, including process mode at launch (i386, x86-64, x32).
Yes... but if this metadata includes TS_COMPAT-is-set, then strace should do PTRACE_GETREGSET(REGSET_META) + PTRACE_GETREGSET(REGSET_GENERAL) every time. Or REGSET_META should include META+GENERAL. IOW, it is not clear to me what this "meta" should actually report. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
