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digitalmars.D.learn - undefined reference to class template

reply "Satoshi" <satoshi gshost.eu> writes:
Hi, Im using GDC 4.9.0 compiler. I have template classes like 
"public class LinkedList(T) {...}" and when I try compile it 
together, everything works fine. But when I compile every source 
file to separate object file and link it together with ld Ill get 
errors like:

"/os/KernelLand/Kernel/TaskManager/Thread.d:99: undefined 
reference to 
`_D7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList6__ctorMFNaNbNfZC7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList'"

Im compiling it with command like:
gdc -mcmodel=kernel -nostdlib -mno-red-zone -Wall -masm=intel 
-frelease -finline-functions -O3 -o obj-x86_64/abc.d.o -c abc.d

Here is
full error log http://pastebin.com/SjnYjqKh

makefile 
https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Makefile#L104

LinkedList class 
https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Library/LinkedList.d


Can anyone help me how to solve this problem? Thanks
(Sorry for bad english)
Nov 14 2014
next sibling parent "Satoshi" <satoshi gshost.eu> writes:
Could anyone help me please?
Nov 17 2014
prev sibling next sibling parent reply Steven Schveighoffer <schveiguy yahoo.com> writes:
On 11/14/14 6:29 PM, Satoshi wrote:

 Hi, Im using GDC 4.9.0 compiler. I have template classes like "public
 class LinkedList(T) {...}" and when I try compile it together,
 everything works fine. But when I compile every source file to separate
 object file and link it together with ld Ill get errors like:

 "/os/KernelLand/Kernel/TaskManager/Thread.d:99: undefined reference to
 `_D7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList6__ctorMFNaNbNfZC7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList'"


 Im compiling it with command like:
 gdc -mcmodel=kernel -nostdlib -mno-red-zone -Wall -masm=intel -frelease
 -finline-functions -O3 -o obj-x86_64/abc.d.o -c abc.d

 Here is
 full error log http://pastebin.com/SjnYjqKh

 makefile
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Makefile#L104


 LinkedList class
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Library/LinkedList.d



 Can anyone help me how to solve this problem? Thanks
 (Sorry for bad english)


Try linking with gdc instead of ld.

-Steve
Nov 17 2014
parent "Satoshi" <satoshi gshost.eu> writes:
On Monday, 17 November 2014 at 21:12:54 UTC, Steven Schveighoffer 
wrote:

 On 11/14/14 6:29 PM, Satoshi wrote:

 Hi, Im using GDC 4.9.0 compiler. I have template classes like 
 "public
 class LinkedList(T) {...}" and when I try compile it together,
 everything works fine. But when I compile every source file to 
 separate
 object file and link it together with ld Ill get errors like:

 "/os/KernelLand/Kernel/TaskManager/Thread.d:99: undefined 
 reference to
 `_D7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList6__ctorMFNaNbNfZC7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList'"


 Im compiling it with command like:
 gdc -mcmodel=kernel -nostdlib -mno-red-zone -Wall -masm=intel 
 -frelease
 -finline-functions -O3 -o obj-x86_64/abc.d.o -c abc.d

 Here is
 full error log http://pastebin.com/SjnYjqKh

 makefile
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Makefile#L104


 LinkedList class
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Library/LinkedList.d



 Can anyone help me how to solve this problem? Thanks
 (Sorry for bad english)


 Try linking with gdc instead of ld.

 -Steve


I tried it but it still dont works.
Nov 22 2014
prev sibling parent reply "Kapps" <opantm2+spam gmail.com> writes:
On Friday, 14 November 2014 at 23:29:34 UTC, Satoshi wrote:

 Hi, Im using GDC 4.9.0 compiler. I have template classes like 
 "public class LinkedList(T) {...}" and when I try compile it 
 together, everything works fine. But when I compile every 
 source file to separate object file and link it together with 
 ld Ill get errors like:

 "/os/KernelLand/Kernel/TaskManager/Thread.d:99: undefined 
 reference to 
 `_D7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList6__ctorMFNaNbNfZC7Library10LinkedList45__T10LinkedListTC11TaskManager6Thread6ThreadZ10LinkedList'"

 Im compiling it with command like:
 gdc -mcmodel=kernel -nostdlib -mno-red-zone -Wall -masm=intel 
 -frelease -finline-functions -O3 -o obj-x86_64/abc.d.o -c abc.d

 Here is
 full error log http://pastebin.com/SjnYjqKh

 makefile 
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Makefile#L104

 LinkedList class 
 https://github.com/Bloodmanovski/Trinix/blob/dc80f3197f59fe96e9f4e29cea670ff2c7eaa342/KernelLand/Kernel/Library/LinkedList.d


 Can anyone help me how to solve this problem? Thanks
 (Sorry for bad english)


Sounds like you're not passing in LinkedList.d while compiling a 
file that uses it. You need to include all used files, including 
imports, on the command line when compiling. The undefined 
reference indicates it can't find the source code or di file 
containing LinkedList. Tools like rdmd do this for you by looking 
at the imports used automatically.

If not that, I'm not sure if this will help, but try using 
-femit-templates (similar to -allinst in DMD I believe?).

Besides that, all I can really suggest is double checking that 
you're actually including the object file containing LinkedList 
when you're linking and the source file when compiling.
Nov 23 2014
parent "Satoshi" <satoshi gshost.eu> writes:
I have defined LinkedList as di file, Im not compiling it. Im 
compiling every .d file separately, eg. main.d -> main.d.o 
without including anything else.

I tried to use -femit-templates but nothing happnes.

I dont have object file of LinkedList.di, Im only importing it in 
source file and with -I
Dec 05 2014