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SubjectRe: [PATCH] UML - SYSEMU fixes
Date
On Tuesday 07 December 2004 00:56, Jon Masters wrote:
> Blaisorblade wrote:
> | On Sunday 05 December 2004 14:30, Jon Masters wrote:
> |>Jeff Dike wrote:
> |>| jonmasters@gmail.com said:
> |>|>That's great, but do any of these patches address various undefines in
> |>|>arch/um/kernel/process.c:check_sysemu when built without skas?
> |>|
> |>| Apparently they did. I just checked with skas turned off and got a
> |>| successful build.
> |
> | They don't - check_sysemu is used also in TT mode.

> I wasn't building for me, but I've not applied these patches yet.

> |>Good. I've got a working build on an Intel box but it's being more
> |>stubburn building for ppc in 2.6.9 - I'll post an update when I've
> |>actually looked at it.
> |
> | PPC port is not maintained at the moment - there are some rumors of

> somebody

> | reviving it, but nothing is certain.

> I want it for unrelated reasons, but I don't want to say I'll do it
> because I probably won't find some time to do it :-)

> (I will look though - it would be nice to have UML building on ppc since
> that's what I have with me most of the time)

If you search on uml-devel and/or uml-user:

http://marc.theaimsgroup.com/?l=user-mode-linux-user&r=1&w=2

http://marc.theaimsgroup.com/?l=user-mode-linux-devel&r=1&w=2

you'll find
> |>|>Also, on 2.6.9, I get dud CFLAGS defined when CONFIG_PROF is set *and*
> |>|>CONFIG_FRAME_POINTER is also set - gcc complains about use of "-gp"
> |>|>and "-fomit-frame-pointer" but surely it should be building with frame
> |>|>pointers anyway if I've asked it to do so?
> |
> | I saw that from someone else - I don't remember what was the problem,

> but it

> | seemed to be some strange kind of .config. Make sure that

> CONFIG_DEBUG_INFO

> | and CONFIG_FRAME_POINTER are both set (the second is the needed one, the
> | first implies the second for UML).
> |
> | "make oldconfig ARCH=um" should fix such problems.

> Nope. My config wasn't that strange either - but I'm perfectly able to
> figure out why it's breaking though. I just wanted to mention it.
Yes, that's always appreciated... however, the dependencies between options
seem correct, i.e. you can enable the -pg flag (for Gprof, IIRC) only if you
have enabled debugging info, which also disables -fomit-frame-pointer.
> Jon.

--
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade
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