platform: add a mechanism for AFU's to set platform macros #3130
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Due to the order that SystemVerilog header files are processed, setting a macro in an AFU's sources file may not affect the FIM's afu_main(). Add support for writing macros to the PIM interface header file that afu_main() includes explicity. Signed-off-by: Michael Adler <[email protected]>
| if ('define' in afu_ifc_db): | ||
| afu_ifc_db['define'] += afu_ifc_req['define'] | ||
| else: | ||
| afu_ifc_db['define'] = afu_ifc_req['define'] |
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If this is concatenating lists, would this pattern work?
| if ('define' in afu_ifc_db): | |
| afu_ifc_db['define'] += afu_ifc_req['define'] | |
| else: | |
| afu_ifc_db['define'] = afu_ifc_req['define'] | |
| afu_ifc_db.setdefault('define', []) += afu_ifc_req['define'] |
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Yours does look better, but the base object doesn't have setdefault(). I think it's just a list.
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Is afu_ifc_db not a dict? https://docs.python.org/3/library/stdtypes.html#dict.setdefault
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You are of course right, it's a dict. But it looks like setdefault() can't be used as an l-value, so can't be the left side of +=.
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Indeed, thanks. This should work:
| if ('define' in afu_ifc_db): | |
| afu_ifc_db['define'] += afu_ifc_req['define'] | |
| else: | |
| afu_ifc_db['define'] = afu_ifc_req['define'] | |
| afu_ifc_db.setdefault('define', []).extend(afu_ifc_req['define']) |
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I find that harder to understand than the original. Is it important to you?
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Not important; merely a preference to avoid repetition.
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If the first suggestion had actually worked I'd be totally on board. Thanks for trying.
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There is a small semantic difference; the first list afu_ifc_req['define'] is modified as well when a second list afu_ifc_req['define'] is concatenated, since = does not create a deep copy. I assume it does not make a difference here though.
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Due to the order that SystemVerilog header files are processed, setting a macro in an AFU's sources file may not affect the FIM's afu_main(). Add support for writing macros to the PIM interface header file that afu_main() includes explicity.