[lttng-dev] arm gcc compile lttng-tool fail

[loody]

hi stefan:

2014-03-27 20:41 GMT+08:00 Stefan Seefeld <stefan_seefeld at mentor.com>:
> On 2014-03-27 08:26, loody wrote:
>> hi all:
>> I try to compile lttng-tool for arm platform but get below message
>>
>>   CC     kernel-consumer.lo
>> kernel-consumer.c: In function 'lttng_kconsumer_snapshot_
>> channel':
>> kernel-consumer.c:324:1: internal compiler error: in gen_movsi, at
>> config/arm/arm.md:5680
>>
>> after ask gcc for help, they said this will be fixed in gcc 4.9.0
>> http://gcc.gnu.org/ml/gcc-help/2014-03/msg00107.html
>>
>> the stable release version of gcc is 4.8.2.
>> Could I get the conclusion that no one can compile it for arm platform before?
>
> We have been working around this GCC 4.8 bug by disabling optimization
> on individual compilation units.

Would you please give us a hand about how to "disabling optimization
on individual compilation units."
any configure option we can use?
or pass "-O1" instead of default "-O2" in CFLAGS?

appreciate your help,