Re: Multiple Values and GC

On 15/09/2021 20:07, Basile Starynkevitch wrote:
>
> On 15/09/2021 19:21, [email protected] wrote:
>> Hi Basile,
>>
>>> On 15/09/2021 18:27, Joseph Donaldson wrote:
>>>> Hello, Manuel,
>>>>
>>>> In building the tarball from 09/15/2021 and enabling the jvm build, I
>>>> see the following error:
>>>>
>>>>          /home/jwd/bigloo_srcs/bigloo-unstable/bin/bigloo.sh -target
>>>>          jvm -jfile .jfile -L
>>>> /home/jwd/bigloo_srcs/bigloo-unstable/lib/bigloo/4.4c -srfi
>>>>          enable-resolv -srfi enable-unistring -srfi enable-pcre2 -srfi
>>>>          enable-gmp� -unsafe -q -mkheap -mklib -s -no-hello \
>>>>          ������������������ Llib/make_lib.scm -heap bigloo.jheap
>>>>
>>>>          File "Llib/error.scm", line 1420, character 54085:
>>>>          #�� ($env-get-error-handler env))
>>>>          #�� ^
>>>>          *** ERROR:env-get-error-handler
>>>>          Unbound variable -- $env-get-error-handler
>>>>
>>>>          File "Llib/error.scm", line 1408, character 53497:
>>>>          #�� ($env-set-error-handler! env ehdl))
>>>>          #�� ^
>>>>          *** ERROR:env-set-error-handler!
>>>>          Unbound variable -- $env-set-error-handler!
>>>>          2 errors occured, ending ...
>>>>
>>>> $env-get-error-handler is not provided by the JVM runtime.
>>>>
>>>> Disabling the jvm backend results in a successful build.
>>>>
>>>> Thank You,
>>>> Joseph
>>>>
>>>>
>>> A possibility to debug such things might be to use the libbacktrace (by
>>> Ian Taylor, also inside GCC)
>>>
>>> https://github.com/ianlancetaylor/libbacktrace
>> This is seems quite interesting but it lacks a little bit of 
>> documentation
>> and examples. I'm not even sure how to get started. Would you have 
>> examples?
>
> The GCC compiler (http://gcc.gnu.org/ ....) is using libbacktrace 
> (since at least GCC 9).
>
> I don't have examples with Bigloo. But the RefPerSys software 
> (symbolic artificial intelligence system, GPLv3+, for Linux only; see 
> http://refpersys.org/ for more) is using libbacktrace. The header 
> files are well written with lots of comments. 

Of course, I meant the header files of libbacktrace. The comments there 
are very big.




> -- 

Basile Starynkevitch                  <[email protected]>
(only mine opinions / les opinions sont miennes uniquement)
92340 Bourg-la-Reine, France
web page: starynkevitch.net/Basile/