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  • Making a configuration object available throughout the testbench hierarchy

Making a configuration object available throughout the testbench hierarchy

UVM 5584
UVM Configuration... 8
owenjarvie
owenjarvie
Full Access
9 posts
August 14, 2015 at 1:24 am

Hi all,

I am trying to set a configuration object in the configuration database in the build phase of the environment using the code section shown below:

environment_config   env_cfg
 
function void build_phase (uvm_phase phase);
   super.build_phase (phase);
   env_cfg = environment_config::type_id::create("env_cfg", this);
   if (!uvm_config_db#(environment_config)::set(this, "*", "env_cfg", env_cfg)) begin
        `uvm_error ("CFG_ERR", "Couldn't set in DB")
   end

I receive the following compilation error when I try to run using Incisiv:

Expecting a function name [10.3.3(IEEE)].
(`include file: /projects/iptet/members/ojarvie/work.main/digital/dai_top/verif/uvc/dai_uvc/sv/dai_pkg.sv line 26, file: dai_top.sv line 2)
package worklib.dai_pkg:sv

Could anybody be of assistance with this matter?

Replies

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Ashith
Ashith
Full Access
60 posts
August 14, 2015 at 1:40 am

environment_config   env_cfg;

You have missed semicolon at the end of above line.
-Ashith

owenjarvie
owenjarvie
Full Access
9 posts
August 14, 2015 at 1:56 am

In reply to Ashith:

Sorry, I must've deleted that semicolon when I copied it across. That is not the issue as that semicolon is in my code when I run the simulation. Can you think of anything else?

owenjarvie
owenjarvie
Full Access
9 posts
August 14, 2015 at 2:00 am

In reply to owenjarvie:

I perhaps should have mentioned that the error "Expecting a function name [10.3.3(IEEE)] refers to the if statement line.

Solution

Solution

Ashith
Ashith
Full Access
60 posts
August 14, 2015 at 2:15 am

I think it is complaining because uvm_config_db :: set function does not return any value, whether set was successful or not. So if you use inside a if statement will cause this failure.

Try removing the if statement and just keeping the set function. See if this works..

- Ashith

owenjarvie
owenjarvie
Full Access
9 posts
August 14, 2015 at 2:34 am

In reply to Ashith:

Ashith,

The code is compiling now, thanks for your time.

Owen

muralikrishna229
muralikrishna229
Full Access
16 posts
August 17, 2015 at 2:57 am

In reply to owenjarvie:

Hi Ashith,

But the statement inside if should be either 1 or 0.If it sets it will give 1 else 0.I think removing the if is not so a proper solution.And i don't see any issues in the code which he pasted.
Owen: can you tell what the changes you made to the above code to make it work.

Thanks,
-Murali

dave_59
dave_59
Forum Moderator
8586 posts
August 17, 2015 at 8:24 am

In reply to muralikrishna229:

Removing the "if" statement seems to be the proper solution to me. There is no value returned by the set() method, so there is nothing to check.

— Dave Rich, Verification Architect, Siemens EDA

muralikrishna229
muralikrishna229
Full Access
16 posts
August 18, 2015 at 2:36 am

In reply to dave_59:

Hi Dave,

Agree with you.But the set has to return either "1 or 0".Why it is not returning any value.
Every time people are using "if" for the set and get and it became a common practice.And mostly no one is facing issues like this.In this why simulator is giving error ?

Thanks,
-Murali

dave_59
dave_59
Forum Moderator
8586 posts
August 18, 2015 at 7:39 am

In reply to muralikrishna229:

Look at the definition of uvm_config_db::set(). The return type is void. Only uvm_config_db::get(). has a return value to tell you if there was something retrieved.

— Dave Rich, Verification Architect, Siemens EDA

muralikrishna229
muralikrishna229
Full Access
16 posts
August 18, 2015 at 11:01 pm

In reply to dave_59:

Thanks a lot Dave.

Thanks,
-Murali

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