[OpenWrt-Devel] kirkwood gcc/binutils woe?

[John Crispin]

On 15/12/2014 16:16, Felix Fietkau wrote:
> On 2014-12-14 12:02, Harald Geyer wrote:
>> nwf writes:
>>> $ gcc -v -o hello hello.c [...]
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/collect2
>>> --eh-frame-hdr -dynamic-linker /lib/ld-uClibc.so.0
>>> -X -m armelf_linux_eabi -o hello
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/crt1.o
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/crti.o
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/crtbegin.o
>>> -L/usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3
>>> -L/usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../..
>>> /tmp/ccjOqw9X.o -lgcc_s -lc -lgcc_s
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/crtend.o
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/crtn.o /usr/bin/ld:
>>> cannot find -lgcc collect2: error: ld returned 1 exit status
>>>
>>> Well, yes, that's true...
>>>
>>> $ find / -name \*libgcc\* /lib/libgcc_s.so.1
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/libgcc_s.so.1
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/libgcc_s.so
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/libgcc.map
>>> /usr/lib/opkg/info/libgcc.list /usr/lib/opkg/info/libgcc.control
>>>
>>> Grepping about at random I find that
>>> /usr/lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/libgcc_s.so contains
>>> the directive
>>>
>>>> GROUP ( libgcc_s.so.1 -lgcc )
>>
>> Actually citing libgcc_s.so in full makes things a bit clearer:
>> $ cat libgcc_s.so
>> /* GNU ld script
>>    Use the shared library, but some functions are only in
>>    the static library.  */
>> GROUP ( libgcc_s.so.1 -lgcc )
>>
>>> So I think the desire to save space expressed in
>>> feeds/packages/devel/gcc/README is well-intentioned but possibly stale,
>>> so maybe the following, too? Maybe we should be removing libgcc_pic.a
>>> but not libgcc.a?
>>
>> Seems reasonable. Since gcc seems to work for Christian as is, this
>> might be architecture dependent. Christian, any insight on this?
>>
>> As far as binutils is concerned the patch below seems to work as expected,
>> so I can now add my
>> Signed-off-by: Harald Geyer <harald at ccbib.org>
>>
>> Felix, can you take this as is or should I resend the patch?
> Removing libgcc_pic.a and adding libgcc.a makes sense to me.
> You could remove libgcc_pic.a by removing 820-libgcc_pic.patch
> 
> - Felix
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gcc is in a github feed so please send a PR or open an issue on github
for this. we cannot merge it via the ML


	John
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