On Sat, Jun 2, 2012 at 7:54 PM, Anirudh Sivaraman <[email protected]> wrote:
> This thread may be useful :
> http://m5sim.org/cgi-bin/mailman/private/gem5-users/2012-June/019665.html
> since I had a similar problem today morning. I used 2.6.35 and after
> the fixes in that thread it worked.
>
> On Sat, Jun 2, 2012 at 7:30 PM, Ira Ray Jenkins <[email protected]> 
> wrote:
>> I am attempting to duplicate the android kernel provided with gem5.
>>
>> Following the instructions here:
>> http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform
>>
>> I cloned the repo: git clone git://linux-arm.org/linux-2.6-armdroid.git
>>
>> and checkout'd 2.6.38-armdroid with: git checkout -b 2.6.38-armdroid
>>
>> From here I copied the .config file supplied by gem5 into the kernel
>> tree root and compiled with the following:
>>
>> make -j9 ARCH=arm CROSS_COMPILE=arm-linux-androideabi-
>>
>> I had to modify fs/nfs/nfsroot.c, but the compilation completed
>> successfully using the toolchain supplied by the AOSP. I copied the
>> vmlinux over to the gem5/system/binaries directory, but gem5 stalls
>> for some reason when run with this kernel.
>>
>> The command line output:
>> gem5 Simulator System.  http://gem5.org
>> gem5 is copyrighted software; use the --copyright option for details.
>>
>> gem5 compiled Apr 26 2012 12:26:52
>> gem5 started Jun  2 2012 19:17:17
>> gem5 executing on Gaia
>> command line: build/ARM/gem5.fast configs/example/fs.py -b ArmAndroid
>> --kernel=test.vmlinux
>> Global frequency set at 1000000000000 ticks per second
>> info: kernel located at: /home/ray/gem5/system/binaries/test.vmlinux
>> Listening for system connection on port 5900
>> Listening for system connection on port 3456
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7000
>> info: Using bootloader at address 0x80000000
>> **** REAL SIMULATION ****
>> info: Entering event queue @ 0.  Starting simulation...
>> warn: The clidr register always reports 0 caches.
>> warn: clidr LoUIS field of 0b001 to match current ARM implementations.
>> warn: The csselr register isn't implemented.
>> *stalls here*
>>
>> The terminal output:
>> ==== m5 slave terminal: Terminal 0 ====
>> <5>Linux version 2.6.35.8-armdroid1+ (ray@Gaia) (gcc version 4.4.3
>> (GCC) ) #1 SMP Sat Jun 2 19:07:52 EDT 2012
>> CPU: ARMv7 Processor [350fc000] revision 0 (ARMv(null)), cr=10c5387f
>> CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
>> Machine: ARM-RealView PBX
>> <4>Ignoring unrecognised tag 0x00000000
>> Memory policy: ECC disabled, Data cache writealloc
>> *stalls here*
>>
>> My assumption is that I've missed a step, or incorrectly configured
>> something. Thanks for the help,
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I realized an error in my original question. Once I cloned the source,
I did a checkout -b ( which creates a new branch); however, I was
still on linux-2.6.35-armdroid.

Beyond that, I didn't modify the provided .config at all, just copied
it over. Should I do make oldconfig, in which case, what options
should I select? Like I said, I just want to duplicate the process
used to create the default/provided kernel.
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