[yocto] native gcc compiler error

[Kumar Gala]

On Jul 18, 2011, at 1:01 PM, Kumar Gala 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.
> 
> - k

If I add the link by hand the issues goes away.

- K