Re: [ISSUE] [CLOSED] cross-arm-none-eabi fail to link

Re: [ISSUE] [CLOSED] cross-arm-none-eabi fail to link

[voidlinux-github]

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Closed issue by herveq on void-packages repository

https://github.com/void-linux/void-packages/issues/1824
Description: ### System
Void 4.16.9_1 x86_64-musl GenuineIntel notuptodate hold rrrnF
package cross-arm-none-eabi

Hi all

I have been playing with a compiler gcc-arm-none-eabi-4_9-2015q2-20150609 
from launchpad.net for stm32, since many months. I had to compile it to run
on Void Linux musl. For the discussion, I call it REF1.

Recently, I discovered the Void Linux package cross-arm-none-eabi and I
thought it could serve the same purpose as REF1. So I installed it, modified
my test project makefile to use it. I call it REF2.

The compiler looks to work fine, but the linker complains about:
undefined reference to `memcpy'
undefined reference to `strlen'...

That is like a missing library. REF2 libraries are installed in
/usr/arm-none-eabi/usr/lib that has exactly the same structure as my
REF1/arm-none-eabi/usr/lib

For a test, I replaced REF2/arm-none-eabi/usr/lib with 
REF1/arm-none-eabi/usr/lib. And then the link succeeded, that means
REF2/libs are bad formatted. Some tests on libs:


REF1 lib/libc_nano.a
ls -l /home8/gnuarm/arm-none-eabi/arm-none-eabi/lib/libc_nano.a
-rw-r--r-- 1 hq hq 4090018 Feb 17  2017 /home8/gnuarm/arm-none-eabi/arm-none-eabi/lib/libc_nano.a
ar x /home8/gnuarm/arm-none-eabi/arm-none-eabi/lib/libc_nano.a
nm lib_a-memcpy.o
00000000 t $a
00000010 N $d
00000000 T memcpy

REF2 arm-none-eabi/usr/lib/libc_nano.a
ls -l /usr/arm-none-eabi/usr/lib/libc_nano.a
-rw-r--r-- 2 root root 561896 Jul 28 07:13 /usr/arm-none-eabi/usr/lib/libc_nano.a
ar x /usr/arm-none-eabi/usr/lib/libc_nano.a
nm lib_a-memcpy.o
nm: lib_a-memcpy.o: no symbols

The REF2 libs are 7 times smaller than REF1 and provide no symbols!

Did you strip too much the objects before making the libraries ?.