Re: PTRACE_{READ,WRITE}{TEXT,DATA}

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From: Benjamin Herrenschmidt

Subject: Re: PTRACE_{READ,WRITE}{TEXT,DATA}

Date: Tuesday, April 29, 2008 - 5:06 pm

On Tue, 2008-04-29 at 15:07 -0700, Roland McGrath wrote:
quoted text> I don't see any sense in adding that.  Using /proc/pid/mem is already the
> "efficient" API for this known to userland.  I don't think keeping the fd
> around for that is any great burden, and if you do then the one pread64
> call is just as efficient as one ptrace call to do the same thing.

Yup, I didn't know gdb used /proc/pid/mem to be honest ... as long as it
goes through access_process_vm(), I'm fine anyway.

Cheers,
Ben.

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Messages in current thread:

PTRACE_{READ,WRITE}{TEXT,DATA}, Benjamin Herrenschmidt, (Mon Apr 28, 8:54 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, David Miller, (Mon Apr 28, 9:34 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, Rik van Riel, (Mon Apr 28, 9:44 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, Benjamin Herrenschmidt, (Mon Apr 28, 10:06 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, Roland McGrath, (Tue Apr 29, 3:07 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, Benjamin Herrenschmidt, (Tue Apr 29, 5:06 pm)

Re: PTRACE_{READ,WRITE}{TEXT,DATA}, Roland McGrath, (Tue Apr 29, 6:32 pm)


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