On 4/26/13 9:41 AM, Eric Bénard wrote:
Hi Mark,
Le Fri, 26 Apr 2013 08:51:58 -0500,
Mark Hatle <[email protected]> a écrit :
On 4/26/13 2:26 AM, Eric Bénard wrote:
this can be fixed by installing the sdk to it's standard path
(/usr/local/oecore-x86_64/ in the present case).
Is that an expected behaviour (as the sdk is primarly designed to build
applications) or can that be fixed during the sdk relocation ?
When you use the SDK, you need to be sure to source the SDK environment setup.
Once you do that, pass to the compiler/linker the included CFLAGS and LDFLAGS as
specified in that environment file.
of course I did source it (and forget to put it in the email as that
was obvious to me, sorry).
They should end up passing at some point a --sysroot=... and that will tell gcc
where the libraries and headers are for linking. Without the --sysroot= option,
the compiler has no choice but to look for it's original compilation directory.
true, that's why I provided the step to reproduce and said "as the
sdk is primarly designed to build applications" and that's certainly
why we get this problem : for linux & u-boot we can't use the LDFLAGS
as set by the environment script else we get :
for u-boot :
arm-oe-linux-gnueabi-ld.bfd: unrecognized option '-Wl,-O1'
so we need to pass LDFLAGS="" which then leads to :
arm-oe-linux-gnueabi-ld.bfd: cannot find -lgcc
if and only if the sdk was relocated.
(and I also get the error even if I add LDFLAGS="
--sysroot=/path_to/oecore-x86_64/sysroots/armv5te-oe-linux-gnueabi"
so this seems specific to -lgcc)
for linux :
arm-oe-linux-gnueabi-ld: unrecognized option '-Wl,-O1'
so here again we need to pass LDFLAGS="" which leads to a successful
build as the build is not using lgcc.
I see, it's using ld instead of gcc for linking. AFAIK though, you really
shouldn't be using -lgcc in either uboot or linux for any platform. That seems
suspicious to me.
It's reasonable to file a bug in the Yocto Project bugzilla, but I'm not sure
what kind of resolution we'll get.
--Mark
Eric
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