Hallo,
what should GHDL do with your multiple architecture?
There is no reference.
You have to use an top architecture. From there you can integrate with
"component" more sub architecture. Normaly only one architecture at on
vhdl file.
René
Am 25.08.2015 um 16:28 schrieb Sander Vanheule:
> Dear all,
>
> When trying to instantiate an architecture of an entity for which
> multiple architectures are defined, linking will fail when elaborating
> an architecture which does not refer to the full collection of
> entities instantiated by all the architectures.
> Searching for the suffixes (__LASTARCH__INSTSIZE etc.) in the error
> message has not returned any useful result, so I'm assuming this
> hasn't been reported yet.
>
> For example, if you have two architectures ('first' and 'second')
> where the first one refers to an entity ('internal') which the second
> one does not refer to, linking to this entity will fail if you try to
> elaborate the second architecture. However, linking to this entity is
> not needed in the first place, so I'm guessing that's why it doesn't
> exist and linking thus fails. In this case, the full set of
> instantiated entities is {'internal', 'internal_bis'}. 'test(second)'
> only refers to 'internal_bis' and therefore fails to link 'internal'
> and vice versa for 'test(first)'.
>
> Note also that if both provided architectures were to be instantiated,
> no linking error occurs. This is particularly annoying when I'm trying
> to include a stand-alone behavioural architecture in a testbench, but
> not the RTL architecture (containing several instantiated entities,
> intended for synthesis). A testbench that includes both the
> behavioural and RTL architecture will compile without error.
>
> Steps to reproduce:
>
> $ ghdl -a test.vhd && ghdl -e test
> test.o: In function `work__test__ARCH__first__test_instantiation__ELAB':
> test.vhd:(.text+0xa4): undefined reference to
> `work__internal__LASTARCH__INSTSIZE'
> test.vhd:(.text+0xdc): undefined reference to
> `work__internal__LASTARCH__ELAB'
> test.vhd:(.text+0xe8): undefined reference to
> `work__internal__LASTARCH__DEFAULT_CONFIG'
> collect2: error: ld returned 1 exit status
> ghdl: compilation error
>
> When the instantiated entities are provided in a separate file, the
> error message is a bit larger:
>
> test.o: In function `work__test__ARCH__first__test_instantiation__ELAB':
> test.vhd:(.text+0x2a): undefined reference to
> `work__internal__LASTARCH__INSTSIZE'
> test.vhd:(.text+0x56): undefined reference to `work__internal__PKG_ELAB'
> test.vhd:(.text+0x62): undefined reference to
> `work__internal__LASTARCH__ELAB'
> test.vhd:(.text+0x6e): undefined reference to
> `work__internal__LASTARCH__DEFAULT_CONFIG'
> test.o:(.rodata+0xa0): undefined reference to `work__internal__RTI'
> collect2: error: ld returned 1 exit status
> ghdl: compilation error
>
>
> GHDL version (from http://launchpad.net/~pgavin/+archive/ubuntu/ghdl
> <http://launchpad.net/%7Epgavin/+archive/ubuntu/ghdl> , on Ubuntu
> 14.04.3):
>
> $ ghdl -v
> GHDL 0.31 (20140108) [Dunoon edition]
> Compiled with GNAT Version: 4.8
> GCC back-end code generator
> [...]
> $ ld --version
> GNU ld (GNU Binutils for Ubuntu) 2.24
> [...]
>
>
> Kind regards,
> Sander Vanheule
>
>
>
> _______________________________________________
> Ghdl-discuss mailing list
> [email protected]
> https://mail.gna.org/listinfo/ghdl-discuss
_______________________________________________
Ghdl-discuss mailing list
[email protected]
https://mail.gna.org/listinfo/ghdl-discuss
