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Re: [Qemu-devel] [Bug 1344320] [NEW] qemu-aarch64 cannot execute glibc


From: Richard Henderson
Subject: Re: [Qemu-devel] [Bug 1344320] [NEW] qemu-aarch64 cannot execute glibc
Date: Mon, 21 Jul 2014 08:55:42 -1000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 07/19/2014 12:54 AM, Peter Maydell wrote:
> On 18 July 2014 21:30, Andreas Schwab <address@hidden> wrote:
>> qemu: uncaught target signal 4 (Illegal instruction) - core dumped
>> Illegal instruction
>> $ objdump -d 
>> /daten/build/build-root/home/abuild/rpmbuild/BUILD/glibc-2.19.90/cc-base/elf/ld-linux-aarch64.so.1
>>  | grep ' 4828:'
>>     4828:       d53be040        mrs     x0, cntvct_el0
> 
> That's awkward, it looks like glibc has started reading the
> generic timer from userspace, and our implementation is
> #ifndef CONFIG_USER_ONLY.
> 
> Do we have any current implementations of timers/counters
> used by linux-user?

Yes, several.  We pass through to cpu_get_real_ticks.


r~



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