Wenji Huang wrote:
Hi,
Sorry, resend it in terms of correct subject.
I got the following building error for 2.6.29-rc1.
# make
CHK include/linux/version.h
CHK include/linux/utsrelease.h
SYMLINK include/asm -> include/asm-x86
CALL scripts/checksyscalls.sh
CHK include/linux/compile.h
IHEX firmware/e100/d101m_ucode.bin
AS firmware/e100/d101m_ucode.bin.gen.o
IHEX firmware/e100/d101s_ucode.bin
AS firmware/e100/d101s_ucode.bin.gen.o
IHEX firmware/e100/d102e_ucode.bin
AS firmware/e100/d102e_ucode.bin.gen.o
LD firmware/built-in.o
LD vmlinux.o
MODPOST vmlinux.o
GEN .version
CHK include/linux/compile.h
UPD include/linux/compile.h
CC init/version.o
LD init/built-in.o
LD .tmp_vmlinux1
STRIP .tmp_vmlinux1.stripped
objcopy: unrecognized option `--strip-unneeded-symbols'
# objcopy --version
GNU objcopy 2.15.92.0.2 20040927
Copyright 2004 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms
of the GNU General Public License. This program has absolutely no
warranty.
The option --strip-unneeded-symbols is only available on higher version,
but not exists on binutils-2.15.
Seems to keep Makefile compatible on all kinds of circumstances. Like,
quiet_cmd_kstrip = STRIP $@
cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip-symbols
,$(filter %/scripts/strip-symbols,$^)) $< $@
Regards,
Wenji
When I upgraded binutils to 2.18 and enabled CONFIG_RELOCATABLE, there
are still mismatched symbols between kernel and debuginfo.
For example, to verify buildid (bytes from __start_notes to
__stop_notes) will get failed. The __stop_notes of running kernel
doesn't match the one in debuginfo.
$ uname -r
2.6.29-rc1
$ cat /proc/kallsyms |grep __stop_notes
c0543610 T __stop_notes
$ readelf -s /lib/modules/2.6.29-rc1/build/vmlinux |grep __stop_notes
48985: c1343610 0 NOTYPE GLOBAL DEFAULT 5 __stop_notes
$ cat /lib/modules/2.6.29-rc1/build/.config|grep CONFIG_RELOCATABLE
CONFIG_RELOCATABLE=y
$ gcc -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.6 20060404 (Red Hat 3.4.6-9.0.1)
$ ld -v
GNU ld (GNU Binutils) 2.18
$ objcopy --version
GNU objcopy (GNU Binutils) 2.18
Copyright 2007 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms
of the GNU General Public License version 3 or (at your option) any
later version.
This program has absolutely no warranty.
Regards,
Wenji
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