Bug#414839: mkvmlinuz fails with undefined reference to zlib_inflate_blocks* against 2.6.18-4-powerpc
Subject: mkvmlinuz fails with undefined reference to zlib_inflate_blocks* against 2.6.18-4-powerpc
Package: mkvmlinuz
Version: 32
Severity: normal
i'm not using mkvmlinuz as my sole bootloader: i am considering it as
an alternate. However, running it by hand with a stock kernel and an
initrd fails with linker errors:
0 clam:/home/debirf# mkvmlinuz -o /foo.mkvmlinuz -k /boot/vmlinux-2.6.18-4-powerpc -i /boot/initrd.img-2.6.18-4-powerpc -v -d /usr/lib/mkvmlinuz 2>&1
=== Building for sub-architecture pmac.
=== Using kernel image file /boot/vmlinux-2.6.18-4-powerpc.
=== Using initrd image file /boot/initrd.img-2.6.18-4-powerpc.
=== Release version seems to be 2.6.18-4-powerpc.
=== Using object files from /usr/lib/mkvmlinuz.
=== Building a bootable compressed kernel image in /foo.mkvmlinuz.
=== Doing build in /tmp/tmp.AJsdy17607.
=== Creating compressed initrd image initrd.gz...
cp -p /boot/initrd.img-2.6.18-4-powerpc /tmp/tmp.AJsdy17607/initrd.gz
=== Creating compressed kernel image vmlinux.gz...
strip -s -R .comment /boot/vmlinux-2.6.18-4-powerpc -o /tmp/tmp.AJsdy17607/vmlinux
gzip --force --best /tmp/tmp.AJsdy17607/vmlinux
=== Putting everything into ELF image file image.o...
objcopy /usr/lib/mkvmlinuz/mkvmlinuz-kernel-vmlinux.strip.o /tmp/tmp.AJsdy17607/dummy_kernel.o --add-section=.kernel:vmlinux.strip=/tmp/tmp.AJsdy17607/vmlinux.gz --set-section-flags=.kernel:vmlinux.strip=contents,alloc,load,readonly,data
objcopy /usr/lib/mkvmlinuz/mkvmlinuz-kernel-initrd.o /tmp/tmp.AJsdy17607/dummy_initrd.o --add-section=.kernel:initrd=/tmp/tmp.AJsdy17607/initrd.gz --set-section-flags=.kernel:initrd=contents,alloc,load,readonly,data
=== Creating bootable kernel image file vmlinuz.pmac...
ld -m elf32ppc -T /usr/lib/mkvmlinuz/zImage.lds -o /tmp/tmp.AJsdy17607/vmlinuz.pmac /usr/lib/mkvmlinuz/crt0.o /usr/lib/mkvmlinuz/string.o /usr/lib/mkvmlinuz/prom.o /usr/lib/mkvmlinuz/stdio.o /usr/lib/mkvmlinuz/main.o /usr/lib/mkvmlinuz/div64.o /usr/lib/mkvmlinuz/inffast.o /usr/lib/mkvmlinuz/inflate.o /usr/lib/mkvmlinuz/inftrees.o /tmp/tmp.AJsdy17607/dummy_kernel.o /tmp/tmp.AJsdy17607/dummy_initrd.o
/usr/lib/mkvmlinuz/inffast.o:(.got2+0x0): undefined reference to `zlib_inflate_mask'
/usr/lib/mkvmlinuz/inflate.o: In function `zlib_inflate':
/home/sven/debian/kernel/trunk/utils/mkvmlinuz/32/mkvmlinuz-32/boot/inflate.c:188: undefined reference to `zlib_inflate_blocks'
/home/sven/debian/kernel/trunk/utils/mkvmlinuz/32/mkvmlinuz-32/boot/inflate.c:202: undefined reference to `zlib_inflate_blocks_reset'
/usr/lib/mkvmlinuz/inflate.o: In function `zlib_inflateReset':
/home/sven/debian/kernel/trunk/utils/mkvmlinuz/32/mkvmlinuz-32/boot/inflate.c:25: undefined reference to `zlib_inflate_blocks_reset'
/usr/lib/mkvmlinuz/inflate.o: In function `zlib_inflateEnd':
/home/sven/debian/kernel/trunk/utils/mkvmlinuz/32/mkvmlinuz-32/boot/inflate.c:37: undefined reference to `zlib_inflate_blocks_free'
/usr/lib/mkvmlinuz/inflate.o: In function `zlib_inflateInit2_':
/home/sven/debian/kernel/trunk/utils/mkvmlinuz/32/mkvmlinuz-32/boot/inflate.c:76: undefined reference to `zlib_inflate_blocks_new'
/usr/lib/mkvmlinuz/addnote /tmp/tmp.AJsdy17607/vmlinuz.pmac
/tmp/tmp.AJsdy17607/vmlinuz.pmac: No such file or directory
=== Cleaning up...
0 clam:/home/debirf#
Interestingly, the return code is 0. mkvmlinuz doesn't seem to
realize that the ld step has failed.
when i run the different steps by hand, ld definitely returns 1, but
the do_cmd step in mkvmlinuz doesn't check the return value.
I'm not sure what i'm supposed to do to get this to work. the kernel
in question is a stock debian 2.6.18-4-powerpc:
[0 xx@clam tmp]$ grep CONFIG_ZLIB /boot/config-2.6.18-4-powerpc
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
[0 xx@clam tmp]$
i'm happy to help debug more if i can. Please let me know if i'm just
confused.
I've never used mkvmlinuz before, but i'm excited to get it working.
It looks like a very useful boot strategy.
--dkg
-- System Information:
Debian Release: 4.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: powerpc (ppc)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.8-powerpc
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages mkvmlinuz depends on:
ii bash 3.1dfsg-8 The GNU Bourne Again SHell
ii binutils 2.17-3 The GNU assembler, linker and bina
ii debconf [debconf-2.0] 1.5.11 Debian configuration management sy
mkvmlinuz recommends no packages.
-- debconf information:
* mkvmlinuz/bootloaders: yaboot
Reply to: