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Date: Thu, 04 Sep 2014 16:56:40 +0800
From: Рысь <>
Subject: Re: segfaults on mips

4 сентября 2014 г. 15:35:45 KRAT, Rich Felker <> пишет:
>On Thu, Sep 04, 2014 at 03:07:57PM +0800, Рысь wrote:
>> Hi list!
>> Not a really blocking bug but I was wondering why cross compiled
>> musl for embedded wrt system is segfaults with this:
>> % ./strace ./ 
>> execve("./", ["./"], [/* 10 vars */]) = 0
>> --- {si_signo=SIGSEGV, si_code=SI_USER, si_errno=EPERM, si_addr=0x4}
>(Segmentation fault) ---
>> +++ killed by SIGSEGV +++
>> Segmentation fault
>> A strange segfault with EPERM.
>> The target is mips2 bigendian router, specifically it is ar9331 SoC.
>> This is how file reports on ELF 32-bit MSB shared object,
>> MIPS, MIPS-I version 1 (SYSV), dynamically linked, not stripped
>> Such a trouble I had once when system enforced mmap_min_addr,
>> however there it has default value.
>> The toolchain is somewhat old: gcc 4.2.1, binutils but
>> confirmed working and stable.
>> Musl is 1.1.4.
>> What else can cause this?
>Could you attach the output of readelf -a I'm guessing the
>problem is a broken linker that's accepting the option but not
>actually honoring -Bsymbolic-functions, or another toolchain related

Ugh, some things changed because of removal of local patches, but issue still same. Segfault line for unmodified musl:

--- {si_signo=SIGSEGV, si_code=SI_USER, si_errno=EPERM, si_addr=0x7b2a0} (Segmentation fault) ---

The output of readelf attached.
Download attachment "" of type "application/x-gzip" (71649 bytes)

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