glibc compiling with kernel 2.5.70-bk17

glibc compiling with kernel 2.5.70-bk17

[Riccardo-Maria Bianchi]

Good morning,

I'm trying to compiling several version of the glibc but always during 
the "make" I obtain these errors:



------------------------------------------ cut 
-----------------------------------------------------------------------------------------------------

In file included from 
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:29,
                 from ../sysdeps/unix/sysv/linux/sys/sysctl.h:28,
                 from ../include/sys/sysctl.h:2,
                 from ../sysdeps/unix/sysv/linux/dl-osinfo.h:21,
                 from ../sysdeps/unix/sysv/linux/init-first.c:32:
/lib/modules/2.5.70-bk15/build/include/linux/list.h:521:2: warning: 
#warning "don't include kernel headers in userspace"
In file included from ../sysdeps/unix/sysv/linux/sys/sysctl.h:28,
                 from ../include/sys/sysctl.h:2,
                 from ../sysdeps/unix/sysv/linux/dl-osinfo.h:21,
                 from ../sysdeps/unix/sysv/linux/init-first.c:32:
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:39: warning: no 
semicolon at end of struct or union
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:39: error: parse 
error before '*' token
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:41: error: parse 
error before '*' token
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:41: warning: type 
defaults to `int' in declaration of `oldval'
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:41: warning: data 
definition has no type or storage class
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:42: error: parse 
error before '*' token
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:42: warning: type 
defaults to `int' in declaration of `oldlenp'
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:42: warning: data 
definition has no type or storage class
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:43: error: parse 
error before '*' token
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:43: warning: type 
defaults to `int' in declaration of `newval'
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:43: warning: data 
definition has no type or storage class
/lib/modules/2.5.70-bk15/build/include/linux/sysctl.h:46: error: parse 
error before '}' token
make[2]: *** [/home/nptl/glibc_2_3_1/build/csu/init-first.o] Error 1
make[2]: Leaving directory `/home/nptl/glibc_2_3_1/glibc-2.3.1/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/home/nptl/glibc_2_3_1/glibc-2.3.1'
make: *** [all] Error 2

---------------------------------------------------- cut 
-------------------------------------------------------------------------------------

I have:
2.5.70-bk17   (even if the 2.5.70-bk15 is shown on the path)
gcc 3.3
binutils 2.13.92

Someone have an idea? :)

Thanks,

  Riccardo-Maria Bianchi

Re: glibc compiling with kernel 2.5.70-bk17

[Kevin P. Fleming]

Riccardo-Maria Bianchi wrote:
> 
> Good morning,
> 
> I'm trying to compiling several version of the glibc but always during 
> the "make" I obtain these errors:
> 

<snip>

> 
> Someone have an idea? :)
> 

Yes, the kernel headers are currently borked for compiling userspace C 
libraries. The fix is going to take either a large effort to get a 
sanitized set of userspace kernel headers created, or someone to be 
willing to accept patches that fix the problems with the existing 
headers even though userspace is not supposed to be using them.

Re: glibc compiling with kernel 2.5.70-bk17

[Chris Meadors]

Kevin P. Fleming wrote:
> 
> Yes, the kernel headers are currently borked for compiling userspace C 
> libraries. The fix is going to take either a large effort to get a 
> sanitized set of userspace kernel headers created, or someone to be 
> willing to accept patches that fix the problems with the existing 
> headers even though userspace is not supposed to be using them.

I did get glibc 2.3.2 compiled with gcc 3.3 against the 2.5.70 headers 
with only 3 changes made to the glibc source.

The result on the other hand wasn't pretty.  Most programs did run fine, 
"ls" was not one of them.  It would segfault.  (Note to self: If glibc's 
"make check" fails, don't install it.)

Your first comment is something I had wondered about for a while. A 
stable set of userspace kernel headers. That would be nice.  Of course 
changes could be made to reflect new kernel interfaces.  So they should 
still be distributed with the kernel source.  Then glibc could be 
compiled against those updates, and the headers installed as the system 
default.  But it wouldn't be so forbidden for userspace to touch them.

-- 
Chris

Re: glibc compiling with kernel 2.5.70-bk17

[H. Peter Anvin]

Followup to:  <3EF12031.8020709@hereintown.net>
By author:    Chris Meadors <clubneon@hereintown.net>
In newsgroup: linux.dev.kernel
> 
> Your first comment is something I had wondered about for a while. A 
> stable set of userspace kernel headers. That would be nice.  Of course 
> changes could be made to reflect new kernel interfaces.  So they should 
> still be distributed with the kernel source.  Then glibc could be 
> compiled against those updates, and the headers installed as the system 
> default.  But it wouldn't be so forbidden for userspace to touch them.
> 

Yes, this is the "ABI headers" project that has been discussed
extensively on this list.  It's pretty important, but unlikely to
happen in time for 2.6.

	-hpa
-- 
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"Unix gives you enough rope to shoot yourself in the foot."
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