On 07/19/2013 09:53 AM, Andrew Bradford wrote:
On Fri, Jul 19, 2013, at 11:19 AM, Kirk Terrell wrote:
I am attempting to build a musl flavored clfs embedded. I am using the
set of packages from the 2012-09-?? version of the embedded book. I am
unable to compile busybox:
networking/lib.a(isrv_identd.o): In function `do_rd':
isrv_identd.c:(.text.do_rd+0x108): undefined reference to `fdprintf'
isrv_identd.c:(.text.do_rd+0x120): undefined reference to `fdprintf'
printutils/lib.a(lpr.o): In function `lpqr_main':
lpr.c:(.text.lpqr_main+0x178): undefined reference to `fdprintf'
lpr.c:(.text.lpqr_main+0x1a4): undefined reference to `fdprintf'
lpr.c:(.text.lpqr_main+0x1f4): undefined reference to `fdprintf'
printutils/lib.a(lpr.o):lpr.c:(.text.lpqr_main+0x298): more undefined
references to `fdprintf' follow
I believe fdprintf() is just dprintf() as per busybox source, as a
#define in platform.h. musl provides a dprintf() but I've not tried a
musl build yet, myself.
prior to building busybox I set C_INCLUDE_PATH=${CLFS}/include -
otherwise it couldn't find the header files. I've also tried to build as
a static system.
Are you following the instructions for the current book but using old
packages? Or some combo like that?
Did you have this issue only with musl or also with uClibc?
I did a static compile of hello.c using my tool chain and it worked, but
when i changed printf to fdprintf I got the same error message.
If you use dprintf() in stead of fdprintf() does that work? I believe
you need to have an open fd to use dprintf().
I am using gcc-4.6.0; musl-0.9.11 and busybox-1.18.4. I am attempting to
build a system based on the mips Malta machine. I've done so succesfully
w/ uClibc.
Let me know how musl works for you, I'm very interested.
Thanks,
Andrew
You were spot on - I was able to compile busybox after giving the
additional C flag -Dfdprintf=dprintf, and turning off some of the
default applets. The most troublesome one was the mount command wouldn't
compile because of missing rpc/rpc.h header file. I was able to boot a
QEMU Malta system, but the initscript listed failures due to missing
mount commands. It looks like the Musl based systems involve a number of
patches e.g.
https://github.com/chneukirchen/sabotage/blob/master/KEEP/busybox.patch.
The Musl libc library weighed in at 1 mb.
I am building to a fork of your gitHub, which I forked before your July
updates. So I am using older packages, and I have made changes to
support no clfs user and automated build of the system outlined in book.
The fork is at https://github.com/kanj/elfs. I didnot have issues with
uClibc not finding the required headers.
It looks like busybox supports dietlibc and newlib, what do you think
of one of those?
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