关于UVM中一个警告的疑问

guolehaohao

# UVM_WARNING @ 0: uvm_test_top.env [UVM_DEPRECATED] build()/build_phase() has been called explicitly, outside of the phasing system. This usage of build is deprecated and may lead to unexpected behavior.
# UVM_WARNING @ 0: uvm_test_top [UVM_DEPRECATED] build()/build_phase() has been called explicitly, outside of the phasing system. This usage of build is deprecated and may lead to unexpected behavior.

环境：qustasim 10.2c win64，UVM_1.1d
想问一下这个是什么问题导致的警告？谢谢

guolehaohao

回复 1# guolehaohao


   已经找到解决方法...

xiangeryong333

回复 2# guolehaohao


   请问是如何解决的，我现在也遇到了同样的问题啊，求帮助

seabeam

回复 3# xiangeryong333

不要显式调用build_phase就没事，UVM不推荐这么做

xiangeryong333

回复 4# seabeam


   一般不都是在某个类定义build_phase(uvm_phase phase)中调用吗？如：super.build_phase(phase);

seabeam

回复  seabeam


   一般不都是在某个类定义build_phase(uvm_phase phase)中调用吗？如：super.build_p ...
xiangeryong333 发表于 2014-9-3 20:32

                               
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super没有关系，不要直接build_phase就行。取决于m_phasing_active的值是不是0
有兴趣参考1.1d
./base/uvm_component.svh:2269
以及uvm_topdown_phase的traverse()

xiangeryong333

回复 6# seabeam


   好的，多谢指教

xiangeryong333

回复 6# seabeam


   q请问你有见过这样的warning吗？
374 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1436)          @ 0.0 ns: uvm_test_top.sve.regular_env.arbiter.sequencer [UVM_DEPRECATED] Registering sequence 'uvm_random         _sequence' with sequencer 'uvm_test_top.sve.regular_env.arbiter.sequencer' is deprecated.
     375 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1436)          @ 0.0 ns: uvm_test_top.sve.regular_env.arbiter.sequencer [UVM_DEPRECATED] Registering sequence 'uvm_exhaus         tive_sequence' with sequencer 'uvm_test_top.sve.regular_env.arbiter.sequencer' is deprecated.
     376 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1436)          @ 0.0 ns: uvm_test_top.sve.regular_env.arbiter.sequencer [UVM_DEPRECATED] Registering sequence 'uvm_simple         _sequence' with sequencer 'uvm_test_top.sve.regular_env.arbiter.sequencer' is deprecated.



1349 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1520)          @ 0.0 ns: uvm_test_top.sve.regular_env.slaves[0].sequencer [UVM_DEPRECATED] Starting (deprecated) default          sequence 'vr_ahb_slave_default_seq' on sequencer 'uvm_test_top.sve.regular_env.slaves[0].sequencer'. See do         cumentation for uvm_sequencer_base::start_phase_sequence() for information on starting default sequences in          UVM.
    1350 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1520)          @ 0.0 ns: uvm_test_top.sve.regular_env.masters[0].sequencer [UVM_DEPRECATED] Starting (deprecated) default          sequence 'vr_ahb_master_random_seq' on sequencer 'uvm_test_top.sve.regular_env.masters[0].sequencer'. See          documentation for uvm_sequencer_base::start_phase_sequence() for information on starting default sequences          in UVM.
    1351 UVM_WARNING /opt/cadence/INCISIV132/tools/methodology/UVM/CDNS-1.1d/sv/src/seq/uvm_sequencer_base.svh(1520)          @ 0.0 ns: uvm_test_top.sve.regular_env.arbiter.sequencer [UVM_DEPRECATED] Starting (deprecated) default se         quence 'vr_ahb_arbiter_default_seq' on sequencer 'uvm_test_top.sve.regular_env.arbiter.sequencer'. See docu         mentation for uvm_sequencer_base::start_phase_sequence() for information on starting default sequences in U         VM.


是提示我的sequencer和sequence有问题吗？还是只是个warning？

seabeam

回复 8# xiangeryong333
不知道你是不是用了uvm_update_sequence_lib类似的宏

xiangeryong333

回复 9# seabeam


   没有用uvm_update_sequence宏没有用，但是其他一些宏倒是用到过，如：uvm_sequence_utils, uvm_rand_send, uvm_field_object等一些宏，这些会有什么影响吗？