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From: Tomasz Chmielewski <mangoo@wpkg.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>, linux-kernel@vger.kernel.org
Subject: Re: kernel cmdline: root=/dev/sdb1,/dev/sda1 "fallback"?
Date: Thu, 18 Jan 2007 11:33:29 +0100	[thread overview]
Message-ID: <45AF4CF9.1070801@wpkg.org> (raw)
In-Reply-To: <45AE8818.1050803@zytor.com>

H. Peter Anvin wrote:
> Tomasz Chmielewski wrote:
>>
>> All right.
>> I see that initramfs is attached to the kernel itself.
>>
>> So it leaves me only a question: will I fit all tools into 300 kB 
>> (considering I'll use uClibc and busybox)?
>>
> 
> You don't need to use busybox and have a bunch of tools.
> 
> The klibc distribution comes with "kinit", which does the equivalent to 
> the kernel root-mounting code; it's in the tens of kilobytes, at least 
> on x86.  If you're using ARM, you can compile it as Thumb.

Hmm, I'm having problems compiling klibc-1.4 on ARM (using gcc-4.1.1):

# make
   GEN     klcc/klibc.config
   GEN     klcc/klcc
   HOSTCC  scripts/basic/fixdep
   GEN     usr/klibc/syscalls/SYSCALLS.i
   GEN     usr/klibc/syscalls/syscalls.nrs
   GEN     usr/klibc/syscalls/typesize.c
   KLIBCCC usr/klibc/syscalls/typesize.o
In file included from usr/klibc/../include/sys/poll.h:9,
                  from usr/klibc/../include/poll.h:1,
                  from usr/klibc/syscalls/syscommon.h:13,
                  from usr/klibc/syscalls/typesize.c:1:
usr/klibc/../include/sys/time.h:12: warning: 'struct timezone' declared 
inside parameter list
usr/klibc/../include/sys/time.h:12: warning: 'struct timeval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:13: warning: 'struct timezone' declared 
inside parameter list
usr/klibc/../include/sys/time.h:13: warning: 'struct timeval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:14: warning: 'struct itimerval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:15: warning: 'struct itimerval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:16: warning: 'struct timeval' declared 
inside parameter list
In file included from usr/klibc/../include/poll.h:1,
                  from usr/klibc/syscalls/syscommon.h:13,
                  from usr/klibc/syscalls/typesize.c:1:
usr/klibc/../include/sys/poll.h:18: warning: 'struct timespec' declared 
inside parameter list
In file included from usr/klibc/../include/sys/resource.h:10,
                  from usr/klibc/syscalls/syscommon.h:18,
                  from usr/klibc/syscalls/typesize.c:1:
/usr/include/linux/resource.h:24: error: field 'ru_utime' has incomplete 
type
/usr/include/linux/resource.h:25: error: field 'ru_stime' has incomplete 
type
In file included from usr/klibc/syscalls/syscommon.h:19,
                  from usr/klibc/syscalls/typesize.c:1:
usr/klibc/../include/sys/select.h:15: warning: 'struct timespec' 
declared inside parameter list
In file included from usr/klibc/syscalls/syscommon.h:20,
                  from usr/klibc/syscalls/typesize.c:1:
usr/klibc/../include/sys/socket.h:47: warning: 'struct msghdr' declared 
inside parameter list
usr/klibc/../include/sys/socket.h:48: warning: 'struct msghdr' declared 
inside parameter list
In file included from usr/klibc/../include/sys/stat.h:11,
                  from usr/klibc/syscalls/syscommon.h:21,
                  from usr/klibc/syscalls/typesize.c:1:
usr/include/arch/arm/klibc/archstat.h:33: error: field 'st_atim' has 
incomplete type
usr/include/arch/arm/klibc/archstat.h:34: error: field 'st_mtim' has 
incomplete type
usr/include/arch/arm/klibc/archstat.h:35: error: field 'st_ctim' has 
incomplete type
In file included from usr/klibc/syscalls/syscommon.h:21,
                  from usr/klibc/syscalls/typesize.c:1:
usr/klibc/../include/sys/stat.h: In function 'mkfifo':
usr/klibc/../include/sys/stat.h:30: error: 'S_IFMT' undeclared (first 
use in this function)
usr/klibc/../include/sys/stat.h:30: error: (Each undeclared identifier 
is reported only once
usr/klibc/../include/sys/stat.h:30: error: for each function it appears in.)
usr/klibc/../include/sys/stat.h:30: error: 'S_IFIFO' undeclared (first 
use in this function)
   LIST    usr/klibc/syscalls/syscalls.list
   GEN     usr/klibc/socketcalls/SOCKETCALLS.i
   GEN     usr/klibc/socketcalls/socketcalls.mk
   KLIBCCC usr/klibc/socketcalls/socket.o
In file included from usr/klibc/../include/sys/stat.h:10,
                  from usr/klibc/socketcalls/socketcommon.h:12,
                  from usr/klibc/socketcalls/socket.c:1:
usr/klibc/../include/sys/time.h:12: warning: 'struct timezone' declared 
inside parameter list
usr/klibc/../include/sys/time.h:12: warning: 'struct timeval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:13: warning: 'struct timezone' declared 
inside parameter list
usr/klibc/../include/sys/time.h:13: warning: 'struct timeval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:14: warning: 'struct itimerval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:15: warning: 'struct itimerval' declared 
inside parameter list
usr/klibc/../include/sys/time.h:16: warning: 'struct timeval' declared 
inside parameter list
In file included from usr/klibc/../include/sys/stat.h:11,
                  from usr/klibc/socketcalls/socketcommon.h:12,
                  from usr/klibc/socketcalls/socket.c:1:
usr/include/arch/arm/klibc/archstat.h:33: error: field 'st_atim' has 
incomplete type
usr/include/arch/arm/klibc/archstat.h:34: error: field 'st_mtim' has 
incomplete type
usr/include/arch/arm/klibc/archstat.h:35: error: field 'st_ctim' has 
incomplete type
In file included from usr/klibc/socketcalls/socketcommon.h:12,
                  from usr/klibc/socketcalls/socket.c:1:
usr/klibc/../include/sys/stat.h: In function 'mkfifo':
usr/klibc/../include/sys/stat.h:30: error: 'S_IFMT' undeclared (first 
use in this function)
usr/klibc/../include/sys/stat.h:30: error: (Each undeclared identifier 
is reported only once
usr/klibc/../include/sys/stat.h:30: error: for each function it appears in.)
usr/klibc/../include/sys/stat.h:30: error: 'S_IFIFO' undeclared (first 
use in this function)
In file included from usr/klibc/socketcalls/socketcommon.h:14,
                  from usr/klibc/socketcalls/socket.c:1:
usr/klibc/../include/sys/socket.h: At top level:
usr/klibc/../include/sys/socket.h:47: warning: 'struct msghdr' declared 
inside parameter list
usr/klibc/../include/sys/socket.h:48: warning: 'struct msghdr' declared 
inside parameter list
make[3]: *** [usr/klibc/socketcalls/socket.o] Error 1
make[2]: *** [usr/klibc/socketcalls] Error 2
make[1]: *** [all] Error 2
make: *** [klibc] Error 2



-- 
Tomasz Chmielewski

  reply	other threads:[~2007-01-18 10:34 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-17 12:58 Tomasz Chmielewski
2007-01-17 13:37 ` Jan Engelhardt
2007-01-17 14:09   ` Tomasz Chmielewski
2007-01-17 20:33     ` H. Peter Anvin
2007-01-18 10:33       ` Tomasz Chmielewski [this message]
2007-01-18 10:47         ` H. Peter Anvin
2007-01-18 11:48           ` Tomasz Chmielewski
2007-01-18 18:48             ` H. Peter Anvin
2007-01-17 13:37 ` Alon Bar-Lev
2007-01-17 13:56   ` Tomasz Chmielewski
2007-01-17 14:06     ` Alon Bar-Lev
2007-01-17 14:12       ` Jan Engelhardt
2007-01-18 10:50 Al Borchers
2007-01-18 14:21 ` Tomasz Chmielewski
2007-01-18 20:33   ` H. Peter Anvin
2007-01-19  4:12   ` Al Borchers

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