[uml-devel] Warnings compiling linux-2.6.17-rc5

[uml-devel] Warnings compiling linux-2.6.17-rc5

[Anthony Brock]

I just tried to compile a new guest kernel using the linux-2.6.17-rc5 kernel
source and encountered the following warnings.

I can post the .config file if needed.

Tony


  SYMLINK arch/um/include/sysdep
make[1]: `arch/um/sys-i386/user-offsets.s' is up to date.
  CHK     include/linux/version.h
  Building modules, stage 2.
  MODPOST
WARNING: vmlinux - Section mismatch: reference to .init.setup:__setup_nosmp
from .bss between 'stderr@@GLIBC_2.0' (at offset 0x82607c4) and
'completed.4463'
WARNING: vmlinux - Section mismatch: reference to .init.text: from .plt
after '' (at offset 0x8260590)
WARNING: vmlinux - Section mismatch: reference to .init: from .plt after ''
(at offset 0x82605b0)
WARNING: vmlinux - Section mismatch: reference to .init.setup: from .plt
after '' (at offset 0x82605e0)
WARNING: vmlinux - Section mismatch: reference to .init.ramfs: from .plt
after '' (at offset 0x8260600)
WARNING: vmlinux - Section mismatch: reference to .init.text:nosmp from .plt
after '' (at offset 0x826066c)
WARNING: vmlinux - Section mismatch: reference to .init.text:maxcpus from
.plt after '' (at offset 0x8260670)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_maxcpus from .plt after '' (at offset 0x8260678)
WARNING: vmlinux - Section mismatch: reference to
.init.text:obsolete_checksetup from .plt after '' (at offset 0x8260680)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_debug_kernel from .plt after '' (at offset 0x8260690)
WARNING: vmlinux - Section mismatch: reference to .init.text:debug_kernel
from .plt after '' (at offset 0x8260694)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_quiet_kernel from .plt after '' (at offset 0x826069c)
WARNING: vmlinux - Section mismatch: reference to .init.text:quiet_kernel
from .plt after '' (at offset 0x82606a0)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_loglevel from .plt after '' (at offset 0x82606a8)
WARNING: vmlinux - Section mismatch: reference to
.init.text:unknown_bootoption from .plt after '' (at offset 0x82606b0)
WARNING: vmlinux - Section mismatch: reference to .init.text:init_setup from
.plt after '' (at offset 0x82606b8)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_init_setup from .plt after '' (at offset 0x82606c0)
WARNING: vmlinux - Section mismatch: reference to .init.text:rdinit_setup
from .plt after '' (at offset 0x82606c4)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_rdinit_setup from .plt after '' (at offset 0x82606d0)
WARNING: vmlinux - Section mismatch: reference to .init.text:do_early_param
from .plt after '' (at offset 0x82606dc)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_initcall_debug_setup from .plt after '' (at offset
0x82606ec)
WARNING: vmlinux - Section mismatch: reference to
.init.text:initcall_debug_setup from .plt after '' (at offset 0x82606f0)
WARNING: vmlinux - Section mismatch: reference to .init.text:do_initcalls
from .plt after '' (at offset 0x82606f4)
WARNING: vmlinux - Section mismatch: reference to .init.text:do_basic_setup
from .plt after '' (at offset 0x82606fc)
WARNING: vmlinux - Section mismatch: reference to .init.text:load_ramdisk
from .plt after '' (at offset 0x8260710)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_load_ramdisk from .plt after '' (at offset 0x8260714)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_readonly from .plt after '' (at offset 0x826071c)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_readwrite from .plt after '' (at offset 0x8260724)
WARNING: vmlinux - Section mismatch: reference to .init.text:readwrite from
.plt after '' (at offset 0x8260728)
WARNING: vmlinux - Section mismatch: reference to .init.text:root_dev_setup
from .plt after '' (at offset 0x8260730)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_root_dev_setup from .plt after '' (at offset 0x8260738)
WARNING: vmlinux - Section mismatch: reference to
.init.text:root_delay_setup from .plt after '' (at offset 0x826073c)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_root_data_setup from .plt after '' (at offset 0x8260748)
WARNING: vmlinux - Section mismatch: reference to .init.text:root_data_setup
from .plt after '' (at offset 0x826074c)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_fs_names_setup from .plt after '' (at offset 0x8260754)
WARNING: vmlinux - Section mismatch: reference to .init.text:fs_names_setup
from .plt after '' (at offset 0x8260758)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_root_delay_setup from .plt after '' (at offset
0x8260760)
WARNING: vmlinux - Section mismatch: reference to .init.text:get_fs_names
from .plt after '' (at offset 0x8260764)
WARNING: vmlinux - Section mismatch: reference to .init.text:do_mount_root
from .plt after '' (at offset 0x8260770)
WARNING: vmlinux - Section mismatch: reference to .init.text:prompt_ramdisk
from .plt after '' (at offset 0x8260778)
WARNING: vmlinux - Section mismatch: reference to
.init.text:ramdisk_start_setup from .plt after '' (at offset 0x826077c)
WARNING: vmlinux - Section mismatch: reference to
.init.setup:__setup_ramdisk_start_setup from .plt after '' (at offset
0x8260784)
WARNING: vmlinux - Section mismatch: reference to
.init.text:identify_ramdisk_image from .plt after '' (at offset 0x8260788)
WARNING: vmlinux - Section mismatch: reference to .init.text:huft_build from
.plt after '' (at offset 0x82607a8)
WARNING: vmlinux - Section mismatch: reference to .exit.text: from .plt
after '' (at offset 0x82605fc)
WARNING: "strcpy" [net/ipv6/ipv6.ko] undefined!
WARNING: "strcpy" [net/ipv4/netfilter/ipt_recent.ko] undefined!
WARNING: "strcpy" [net/ipv4/netfilter/ip_conntrack_tftp.ko] undefined!
WARNING: "strcpy" [net/ipv4/netfilter/ip_conntrack_irc.ko] undefined!
WARNING: "strcpy" [net/ipv4/netfilter/ip_conntrack_ftp.ko] undefined!
WARNING: "strcpy" [fs/nfsd/nfsd.ko] undefined!
WARNING: "strcpy" [fs/cifs/cifs.ko] undefined!
WARNING: "strcpy" [fs/binfmt_misc.ko] undefined!
WARNING: "strcpy" [drivers/net/bonding/bonding.ko] undefined!
  INSTALL crypto/cast5.ko
  INSTALL crypto/crc32c.ko

<TRIMMED OUTPUT>

  INSTALL net/sched/sch_teql.ko
  INSTALL net/sunrpc/auth_gss/rpcsec_gss_spkm3.ko
if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F
System.map -b /mnt -r 2.6.17-rc5; fi
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/net/ipv6/ipv6.ko needs unknown
symbol strcpy
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/net/ipv4/netfilter/ipt_recent.ko
needs unknown symbol strcpy
WARNING:
/mnt/lib/modules/2.6.17-rc5/kernel/net/ipv4/netfilter/ip_conntrack_tftp.ko
needs unknown symbol strcpy
WARNING:
/mnt/lib/modules/2.6.17-rc5/kernel/net/ipv4/netfilter/ip_conntrack_irc.ko
needs unknown symbol strcpy
WARNING:
/mnt/lib/modules/2.6.17-rc5/kernel/net/ipv4/netfilter/ip_conntrack_ftp.ko
needs unknown symbol strcpy
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/fs/nfsd/nfsd.ko needs unknown
symbol strcpy
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/fs/cifs/cifs.ko needs unknown
symbol strcpy
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/fs/binfmt_misc.ko needs unknown
symbol strcpy
WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/drivers/net/bonding/bonding.ko
needs unknown symbol strcpy
#



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Re: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Jeff Dike]

On Sun, May 28, 2006 at 04:50:33PM -0700, Anthony Brock wrote:
> I just tried to compile a new guest kernel using the linux-2.6.17-rc5 kernel
> source and encountered the following warnings.
> WARNING: vmlinux - Section mismatch: reference to .init.setup:__setup_nosmp
> from .bss between 'stderr@@GLIBC_2.0' (at offset 0x82607c4) and
> 'completed.4463'

These I have no clue about.  I've seen them with a native build, so
they appear not to be UML-specific.  Looks like a broken linker.  The
resulting UML works fine, so this is nasty-looking, but non-fatal.

> WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/net/ipv6/ipv6.ko needs unknown
> symbol strcpy

This is fixed in my current tree.

				Jeff


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RE: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Anthony Brock]

> On Sun, May 28, 2006 at 04:50:33PM -0700, Anthony Brock wrote:
> > I just tried to compile a new guest kernel using the
> linux-2.6.17-rc5 kernel
> > source and encountered the following warnings.
> > WARNING: vmlinux - Section mismatch: reference to
> .init.setup:__setup_nosmp
> > from .bss between 'stderr@@GLIBC_2.0' (at offset 0x82607c4) and
> > 'completed.4463'
>
> These I have no clue about.  I've seen them with a native build, so
> they appear not to be UML-specific.  Looks like a broken linker.  The
> resulting UML works fine, so this is nasty-looking, but non-fatal.

Good. I'll ignore them.

> > WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/net/ipv6/ipv6.ko
> needs unknown
> > symbol strcpy
>
> This is fixed in my current tree.

I actually looked through these patches before asking:

http://user-mode-linux.sourceforge.net/work/current/2.6/2.6.17-rc4/patches.t
ar

I didn't see anything that appeared to address this. However, I'll try
applying these and test from there.

Thanks!

Tony

BTW, this compile was run on Debian Testing (Etch):


# gcc -v
Using built-in specs.
Target: i486-linux-gnu
Configured with:
../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --pr
efix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without
-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 
--enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable
-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-
1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --with-tune=i686 --
enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
# ld -V
GNU ld version 2.16.91 20060413 Debian GNU/Linux
  Supported emulations:
   elf_i386
   i386linux
   elf_x86_64



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RE: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Anthony Brock]

> -----Original Message-----
> I actually looked through these patches before asking:
>
> http://user-mode-linux.sourceforge.net/work/current/2.6/2.6.17-rc4
> /patches.t
> ar
>
> I didn't see anything that appeared to address this. However, I'll try
> applying these and test from there.

I tried these patches but encountered the errors below. While most of the
patches applied without an issue, I was forced to modify one patch before it
would apply to the 2.6.17-rc5 tree. I had to delete following line from the
patch file externfs:

obj-$(CONFIG_CONFIGFS_FS)       += configfs/

I will retry this compile with externfs disabled.

Tony


  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
fs/built-in.o: In function `humfs_stat_file':
fs/externfs/humfs.c:39: undefined reference to `host_stat_file'
fs/built-in.o: In function `humfs_file_type':
fs/externfs/humfs.c:122: undefined reference to `host_file_type'
fs/built-in.o: In function `humfs_open_file':
fs/externfs/humfs.c:173: undefined reference to `get_path'
fs/externfs/humfs.c:202: undefined reference to `free_path'
fs/built-in.o: In function `humfs_open_dir':
fs/externfs/humfs.c:217: undefined reference to `host_open_dir'
fs/built-in.o: In function `humfs_make_node':
fs/externfs/humfs.c:449: undefined reference to `host_create_file'
fs/externfs/humfs.c:481: undefined reference to `host_unlink_file'
fs/built-in.o: In function `humfs_create_file':
fs/externfs/humfs.c:496: undefined reference to `host_create_file'
fs/built-in.o: In function `humfs_set_attr':
fs/externfs/humfs.c:536: undefined reference to `host_set_attr'
fs/built-in.o: In function `humfs_make_symlink':
fs/externfs/humfs.c:550: undefined reference to `host_make_symlink'
fs/built-in.o: In function `humfs_link_file':
fs/externfs/humfs.c:570: undefined reference to `host_link_file'
fs/built-in.o: In function `humfs_unlink_file':
fs/externfs/humfs.c:587: undefined reference to `host_unlink_file'
fs/built-in.o: In function `humfs_make_dir':
fs/externfs/humfs.c:610: undefined reference to `host_make_dir'
fs/built-in.o: In function `humfs_remove_dir':
fs/externfs/humfs.c:623: undefined reference to `host_remove_dir'
fs/built-in.o: In function `humfs_read_link':
fs/externfs/humfs.c:638: undefined reference to `host_read_link'
fs/built-in.o: In function `humfs_rename_file':
fs/externfs/humfs.c:657: undefined reference to `host_rename_file'
fs/built-in.o: In function `humfs_stat_fs':
fs/externfs/humfs.c:675: undefined reference to `host_stat_fs'
fs/built-in.o: In function `read_superblock':
fs/externfs/humfs.c:777: undefined reference to `host_open_file'
fs/built-in.o: In function `humfs_read_dir':
fs/externfs/humfs.c:229: undefined reference to `generic_host_read_dir'
fs/built-in.o: In function `meta_file_name':
fs/externfs/meta_fs.c:32: undefined reference to `get_path'
fs/externfs/meta_fs.c:49: undefined reference to `get_path'
fs/externfs/meta_fs.c:58: undefined reference to `free_path'
fs/built-in.o: In function `meta_fs_name':
fs/externfs/meta_fs.c:76: undefined reference to `free_path'
fs/built-in.o: In function `metafs_create_file':
fs/externfs/meta_fs.c:152: undefined reference to `get_path'
fs/externfs/meta_fs.c:170: undefined reference to `free_path'
fs/externfs/meta_fs.c:176: undefined reference to `free_path'
fs/built-in.o: In function `metafs_create_link':
fs/externfs/meta_fs.c:188: undefined reference to `host_link_file'
fs/built-in.o: In function `metafs_remove_file':
fs/externfs/meta_fs.c:196: undefined reference to `get_path'
fs/externfs/meta_fs.c:205: undefined reference to `free_path'
fs/built-in.o: In function `metafs_create_directory':
fs/externfs/meta_fs.c:220: undefined reference to `host_make_dir'
fs/externfs/meta_fs.c:224: undefined reference to `host_make_dir'
fs/externfs/meta_fs.c:234: undefined reference to `get_path'
fs/externfs/meta_fs.c:252: undefined reference to `free_path'
fs/externfs/meta_fs.c:254: undefined reference to `host_remove_dir'
fs/built-in.o: In function `metafs_remove_directory':
fs/externfs/meta_fs.c:270: undefined reference to `get_path'
fs/externfs/meta_fs.c:285: undefined reference to `free_path'
fs/externfs/meta_fs.c:287: undefined reference to `get_path'
fs/externfs/meta_fs.c:298: undefined reference to `free_path'
fs/built-in.o: In function `metafs_make_node':
fs/externfs/meta_fs.c:316: undefined reference to `get_path'
fs/externfs/meta_fs.c:332: undefined reference to `free_path'
fs/built-in.o: In function `metafs_rename_file':
fs/externfs/meta_fs.c:455: undefined reference to `free_path'
fs/externfs/meta_fs.c:457: undefined reference to `free_path'
collect2: ld returned 1 exit status
  KSYM    .tmp_kallsyms1.S
nm: '.tmp_vmlinux1': No such file
No valid symbol.
make: *** [.tmp_kallsyms1.S] Error 1
#



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RE: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Anthony Brock]

> -----Original Message-----
> > -----Original Message-----
> > I actually looked through these patches before asking:
> >
> > http://user-mode-linux.sourceforge.net/work/current/2.6/2.6.17-rc4
> > /patches.t
> > ar
> >
> > I didn't see anything that appeared to address this. However, I'll try
> > applying these and test from there.
>
> I tried these patches but encountered the errors below. While most of the
> patches applied without an issue, I was forced to modify one
> patch before it
> would apply to the 2.6.17-rc5 tree. I had to delete following
> line from the
> patch file externfs:
>
> obj-$(CONFIG_CONFIGFS_FS)       += configfs/
>
> I will retry this compile with externfs disabled.

This appears to have worked (compiled) after I disabled both HUMFS and
EXTERNFS in the config. I will try launching an instance with this
executable in the morning and see how it performs.

However, I wasn't able to disable the EXTERNFS option through the regular
'make menuconfig ARCH=um' command. The option inside the regular menu
interface was already disabled (although the resulting .config file listed
it as enabled). I was forced to manually edit the .config file and comment
it out.

The really strange thing is that AFTER the compile the .config file has
EXTERNFS enabled! Also, the resulting executable agrees with the final
.config file. I've never seen an instance where compiling the kernel changes
options in the .config file. I've even verified that both HUMFS and HOSTFS
are disabled (to prevent these options from auto-enabling EXTERNFS).
However, I've confirmed this behavior twice.

As a result, the only real difference in configuration to fix the compile
was disabling HUMFS.

Tony



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Re: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Jeff Dike]

On Mon, May 29, 2006 at 12:17:11AM -0700, Anthony Brock wrote:
> I actually looked through these patches before asking:
> 
> http://user-mode-linux.sourceforge.net/work/current/2.6/2.6.17-rc4/patches.t
> ar
> 
> I didn't see anything that appeared to address this. However, I'll try
> applying these and test from there.

I haven't pushed it out yet.  Keep an eye out for a patch called 'sprintf'.

					Jeff


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RE: [uml-devel] Warnings compiling linux-2.6.17-rc5

[Anthony Brock]

> -----Original Message-----
> On Sun, May 28, 2006 at 04:50:33PM -0700, Anthony Brock wrote:
> > WARNING: /mnt/lib/modules/2.6.17-rc5/kernel/net/ipv6/ipv6.ko
> needs unknown
> > symbol strcpy
>
> This is fixed in my current tree.

Before I forget, this warning is still occurring even after applying the
patches mentioned in my previous post. Is there a different tree I should be
patching from? Or is this tree the correct one for testing your patches? Or
does this lag your "current" tree by some time period?

Thanks,

Tony



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