[fpc-devel] ARM native compilation (Toshiba AC100)

[Thomas Schatzl]

 Hi,

 On Thu, 22 Sep 2011 09:26:13 +0000, Mark Morgan Lloyd wrote:
> Sven Barth wrote:
>> Am 21.09.2011 22:45, schrieb Henry Vermaak:
>>> On 20 September 2011 12:18, Henry Vermaak<henry.vermaak at gmail.com>  
>>> wrote:
>>>> On 20 September 2011 11:55, Sash0k<vodka_ploho at mail.ru>  wrote:
>>>>>
>>>>> So, what can I do next? My goal is get stable fpc + mseide for 
>>>>> Toshiba AC100 device.
>>>>
>>>> I've built fpc trunk successfully on my AC100.  I will check which
>>>> revision worked tonight.
>>>
>>> To get this to work, you'll have to revert to revision 18269, build
>>> the compiler, then use that compiler as a starting compiler to 
>>> build
>>> trunk.  This worked for me.  I don't know how the fpc team deals 
>>> with
>>> this normally.
>> Compiling the trunk compiler is only supported when using the latest 
>> release (currently 2.4.4) as a starting compiler.

 That is a known issue with 2.4.4 that it does not compile trunk with 
 optimization turned on. There seems to be a bug that has been existing 
 for a long time that has been triggered by code changes in 18230; the 
 ARM compiler is not as well maintained as others.

 I think 2.4.4 definitely builds when specifying -O- as extra build 
 options though. I am working on it, however I fear that -O- will need to 
 be set for some time.

 @henry: thanks for finding the revision when compilation broke.
 
> Which, stating the obvious, is difficult when the available binary is
> stuck at 2.2.2.

 As others already mentioned there is an official 2.4.4 release.

> I got from there to 2.4 via (I think) 2.5 with Jonas's help, and
> since then have moved it between local machines as a binary. I can
> confirm that 2.4.4 will build FPC trunk (2.7.1) on ARM, and that that
> can build Lazarus trunk.

 The currently supported ABI is EABI on linux only. I do not think oabi 
 still works (never tried). We also only do daily testsuite runs with 
 soft fp (e.g. -Cfsoft enabled), armv5.

 Thomas