[yocto] native gcc compiler error

[Khem Raj]

On Mon, Jul 18, 2011 at 11:01 AM, Kumar Gala <galak at kernel.crashing.org> wrote:
>
> On Jul 18, 2011, at 12:22 PM, Saul Wold wrote:
>
>> On 07/18/2011 07:54 AM, Kumar Gala wrote:
>>>
>>> On Jul 18, 2011, at 9:45 AM, Khem Raj wrote:
>>>
>>>> On Mon, Jul 18, 2011 at 5:58 AM, Kumar Gala<galak at kernel.crashing.org>  wrote:
>>>>> I've been working on trying to get an e500v2 (linux-gnuspe) compiler working and seem to have build a native toolchain.  However when I try and compile a simple hello world style app I get:
>>>>>
>>>>> root at p2020-ds:~# gcc float.c
>>>>> gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found
>>>>> compilation terminated.
>>>>>
>>>>> Wondering if anyone's seen this before and had any ideas.
>>>>>
>>>>
>>>> You can try -fno-use-linker-plugin as a workaround. Does
>>>> liblto_plugin.so exist on target rfs ?
>>>> it might be then gcc driver bug if the library is not there then we
>>>> forgot to package it.
>>>
>>> File appears to be there:
>>> root at p2020-ds:/# file /usr/libexec/gcc/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so.0.0.0
>>> ./usr/libexec/gcc/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so.0.0.0: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, with unknown capability 0x41000000 = 0xf676e75, with unknown capability 0x10000 = 0x70402, stripped
>>>
>>> root at p2020-ds:~# ls -lstr /usr/libexec/gcc/powerpc-poky-linux-gnuspe/4.6.1/
>>> total 31624
>>>  9812 -rwxr-xr-x 1 root root 10046304 Jul 16 22:40 lto1
>>>    28 -rwxr-xr-x 1 root root    26344 Jul 16 22:40 lto-wrapper
>>>    60 -rwxr-xr-x 1 root root    60132 Jul 16 22:40 liblto_plugin.so.0.0.0
>>>   124 -rwxr-xr-x 1 root root   124776 Jul 16 22:40 collect2
>>> 11208 -rwxr-xr-x 1 root root 11476244 Jul 16 22:40 cc1plus
>>> 10392 -rwxr-xr-x 1 root root 10640644 Jul 16 22:40 cc1
>>>     0 lrwxrwxrwx 1 root root       22 Jul 17 15:07 liblto_plugin.so.0 ->  liblto_plugin.so.0.0.0
>>>
>>> So not clear why its not finding it.
>>>
>> This looks similar to Yocto Bug 1233 (http://bugzilla.yoctoproject.org/show_bug.cgi?id=1233
>>
>> Can you confirm if you have the following commit in your branch?
>> http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=2429773613cb95b6a0541b5cce6ce1338d5cfc2b
>>
>> It's possible you might be missing this and it's not finding the file correctly.
>>
>> As Richard mentioned also, an strace output would be helpful if you do have the above commit.
>>
>> Thanks
>>       Sau!
>
> access("/usr/libexec/gcc/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/libexec/gcc/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/libexec/gcc/powerpc-poky-linux-gnuspe/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/lib/gcc/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/lib/gcc/powerpc-poky-linux-gnuspe/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/lib/gcc/powerpc-poky-linux-gnuspe/4.6.1/../../../../powerpc-poky-linux-gnuspe/bin/powerpc-poky-linux-gnuspe/4.6.1/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
> access("/usr/lib/gcc/powerpc-poky-linux-gnuspe/4.6.1/../../../../powerpc-poky-linux-gnuspe/bin/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory)
>
> So it appears we are missing in the package 'liblto_plugin.so' link.

Does that symlink exist in your gcc install tree during build ? if not
then gcc makefiles need to generate it. if its just a case we
forgot to bundle it then we should add it to FILES var of gcc.
>
> - k
>