[uml-devel] UML compile fix

[uml-devel] UML compile fix

[Jan Kara]

  Hello,

  I need attached patch for UML in 2.6.8.1 with UML patch to compile.

									Honza
Signed-off-by: Jan Kara <jack@suse.cz>

--- linux/arch/um/Makefile.orig	2004-09-03 11:52:44.000000000 +0200
+++ linux/arch/um/Makefile	2004-09-03 11:52:47.000000000 +0200
@@ -15,6 +15,7 @@
 
 ifeq ($(CONFIG_DEBUG_INFO),y)
 CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS))
+HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
 endif
 
 core-y			+= $(ARCH_DIR)/kernel/		 \
--- linux/arch/um/kernel/ksyms.c.orig	2004-09-03 11:50:13.000000000 +0200
+++ linux/arch/um/kernel/ksyms.c	2004-09-03 11:54:35.000000000 +0200
@@ -87,7 +87,6 @@
 EXPORT_SYMBOL(os_create_unix_socket);
 EXPORT_SYMBOL(os_connect_socket);
 EXPORT_SYMBOL(os_accept_connection);
-EXPORT_SYMBOL(os_ioctl_generic);
 EXPORT_SYMBOL(os_rcv_fd);
 EXPORT_SYMBOL(run_helper);
 EXPORT_SYMBOL(start_thread);


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Re: [uml-devel] UML compile fix

[Jeff Dike]

jack@suse.cz said:
> +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS)) 

What does this fix?

				Jeff



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Re: [uml-devel] UML compile fix

[BlaisorBlade]

On Friday 10 September 2004 05:55, Jeff Dike wrote:
> jack@suse.cz said:
> > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
>
> What does this fix?
>
> 				Jeff
It's used for host programs. Actually, however, that line is useless, IMHO. 
Nobody else needed it. Jan, can you test not using that line (and using just 
the EXPORT_SYMBOL removal) and report the errors you get, if any, or a 
success?
-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729


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Re: [uml-devel] UML compile fix

[Jan Kara]

> On Friday 10 September 2004 05:55, Jeff Dike wrote:
> > jack@suse.cz said:
> > > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
> >
> > What does this fix?
> >
> > 				Jeff
> It's used for host programs. Actually, however, that line is useless, IMHO. 
> Nobody else needed it. Jan, can you test not using that line (and using just 
> the EXPORT_SYMBOL removal) and report the errors you get, if any, or a 
> success?
  What does exactly mean "EXPORT_SYMBOL removal"?

						Thanks for help
								Honza
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs


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Re: [uml-devel] UML compile fix

[BlaisorBlade]

On Saturday 11 September 2004 22:59, Jan Kara wrote:
> > On Friday 10 September 2004 05:55, Jeff Dike wrote:
> > > jack@suse.cz said:
> > > > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
> > >
> > > What does this fix?
> > >
> > > 				Jeff
> >
> > It's used for host programs. Actually, however, that line is useless,
> > IMHO. Nobody else needed it. Jan, can you test not using that line (and
> > using just the EXPORT_SYMBOL removal) and report the errors you get, if
> > any, or a success?
>
>   What does exactly mean "EXPORT_SYMBOL removal"?
>
> 						Thanks for help
> 								Honza
Ok, to be clearer: the removal of EXPORT_SYMBOL(os_ioctl_generic); to be still 
clearer: this patch part:

-EXPORT_SYMBOL(os_ioctl_generic);

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729


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Re: [uml-devel] UML compile fix

[Jan Kara]

> jack@suse.cz said:
> > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS)) 
> 
> What does this fix?
  I got errors that "omit-frame-pointer" and debugging flags exclude
each other.

							Honza
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs


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Re: [uml-devel] UML compile fix

[BlaisorBlade]

On Saturday 11 September 2004 22:57, Jan Kara wrote:
> > jack@suse.cz said:
> > > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
> >
> > What does this fix?
>
>   I got errors that "omit-frame-pointer" and debugging flags exclude
> each other.
Well, that is wrong for two reasons:

1) if the host programs are compiled with debugging symbols, something went 
wrong

2) The UML kernel has always been compiled with both -fomit-frame-pointer and 
-g. Obviously this with GCC (but what compiler did you use? And which 
version?)

Try to re-get the exact error message and send it us. Compile preferably with 
"make ARCH=um V=1": the V=1 will ensure that the compiler command line is 
shown.

Bye
-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729


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Re: [uml-devel] UML compile fix

[Jan Kara]

> On Saturday 11 September 2004 22:57, Jan Kara wrote:
> > > jack@suse.cz said:
> > > > +HOSTCFLAGS := $(subst -fomit-frame-pointer,,$(HOSTCFLAGS))
> > >
> > > What does this fix?
> >
> >   I got errors that "omit-frame-pointer" and debugging flags exclude
> > each other.
> Well, that is wrong for two reasons:
> 
> 1) if the host programs are compiled with debugging symbols, something went 
> wrong
> 
> 2) The UML kernel has always been compiled with both -fomit-frame-pointer and 
> -g. Obviously this with GCC (but what compiler did you use? And which 
> version?)
> 
> Try to re-get the exact error message and send it us. Compile preferably with 
> "make ARCH=um V=1": the V=1 will ensure that the compiler command line is 
> shown.
  OK. I retried on a different host and the problems with compiler flags
went away so it was probably either my mistake or just somehow broken
instalation.. Sadly I don't have access to that system anymore - it was
just a borrowed notebook and I had to return it. Thank you very much for
help.

									Honza
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs


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