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Don't use global (external) symbols for symbols that are used in only one translation unit #16092
Don't use global (external) symbols for symbols that are used in only one translation unit #16092
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I whould say utACK b547633 |
The following sections might be updated with supplementary metadata relevant to reviewers and maintainers. ConflictsReviewers, this pull request conflicts with the following ones:
If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first. |
Concept ACK. Could be better to use an anon namespace where possible for these as that will make the variables static and enforce local-only access to the associated class as well. |
@Empact The end-result would be the same as using
I don't have any strong preference -- I just want to minimise the diffs and make them super-trivial to review. Please read #15622 (comment) and other comments in that PR. |
Sure, fine as is. |
… one translation unit
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Rebased! |
ACK 0959d37 |
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ACK 0959d37. |
…that are used in only one translation unit 0959d37 Don't use global (external) symbols for symbols that are used in only one translation unit (practicalswift) Pull request description: Don't use global (external) symbols for symbols that are used in only one translation unit. Before: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done Global symbol g_chainstate is used in only one translation unit: src/validation.cpp Global symbol g_ui_signals is used in only one translation unit: src/ui_interface.cpp Global symbol instance_of_cmaincleanup is used in only one translation unit: src/validation.cpp Global symbol instance_of_cnetcleanup is used in only one translation unit: src/net.cpp Global symbol instance_of_cnetprocessingcleanup is used in only one translation unit: src/net_processing.cpp Global symbol pindexBestForkBase is used in only one translation unit: src/validation.cpp Global symbol pindexBestForkTip is used in only one translation unit: src/validation.cpp $ ``` After: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done $ ``` ♻️ Think about future generations: save the global namespace from unnecessary pollution! ♻️ ACKs for commit 0959d3: Empact: ACK bitcoin@0959d37 MarcoFalke: ACK 0959d37 hebasto: ACK 0959d37 promag: ACK 0959d37. Tree-SHA512: 722f66bb50450f19b57e8a8fbe949f30cd651eb8564e5787cbb772a539bf3a288c048dc49e655fd73ece6a46f6dafade515ec4004729bf2b3ab83117b7c5d153
…that are used in only one translation unit 0959d37 Don't use global (external) symbols for symbols that are used in only one translation unit (practicalswift) Pull request description: Don't use global (external) symbols for symbols that are used in only one translation unit. Before: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done Global symbol g_chainstate is used in only one translation unit: src/validation.cpp Global symbol g_ui_signals is used in only one translation unit: src/ui_interface.cpp Global symbol instance_of_cmaincleanup is used in only one translation unit: src/validation.cpp Global symbol instance_of_cnetcleanup is used in only one translation unit: src/net.cpp Global symbol instance_of_cnetprocessingcleanup is used in only one translation unit: src/net_processing.cpp Global symbol pindexBestForkBase is used in only one translation unit: src/validation.cpp Global symbol pindexBestForkTip is used in only one translation unit: src/validation.cpp $ ``` After: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done $ ``` ♻️ Think about future generations: save the global namespace from unnecessary pollution! ♻️ ACKs for commit 0959d3: Empact: ACK bitcoin@0959d37 MarcoFalke: ACK 0959d37 hebasto: ACK 0959d37 promag: ACK 0959d37. Tree-SHA512: 722f66bb50450f19b57e8a8fbe949f30cd651eb8564e5787cbb772a539bf3a288c048dc49e655fd73ece6a46f6dafade515ec4004729bf2b3ab83117b7c5d153
…e used in only one translation unit Summary: 0959d37e3e Don't use global (external) symbols for symbols that are used in only one translation unit (practicalswift) Pull request description: Don't use global (external) symbols for symbols that are used in only one translation unit. Before: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done Global symbol g_chainstate is used in only one translation unit: src/validation.cpp Global symbol g_ui_signals is used in only one translation unit: src/ui_interface.cpp Global symbol instance_of_cmaincleanup is used in only one translation unit: src/validation.cpp Global symbol instance_of_cnetcleanup is used in only one translation unit: src/net.cpp Global symbol instance_of_cnetprocessingcleanup is used in only one translation unit: src/net_processing.cpp Global symbol pindexBestForkBase is used in only one translation unit: src/validation.cpp Global symbol pindexBestForkTip is used in only one translation unit: src/validation.cpp $ ``` After: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done $ ``` ♻️ Think about future generations: save the global namespace from unnecessary pollution! ♻️ ACKs for commit 0959d3: Empact: ACK bitcoin/bitcoin@0959d37 MarcoFalke: ACK 0959d37e3e0f80010a78d175e3846dabf5d35919 hebasto: ACK 0959d37e3e0f80010a78d175e3846dabf5d35919 promag: ACK 0959d37. Tree-SHA512: 722f66bb50450f19b57e8a8fbe949f30cd651eb8564e5787cbb772a539bf3a288c048dc49e655fd73ece6a46f6dafade515ec4004729bf2b3ab83117b7c5d153 Backport of Core [[bitcoin/bitcoin#16092 | PR16092]] I followed the test plan in the original PR, but do not see those global symbols on master to begin with. Regardless, this brings our codebase more inline with Core for future backporting's sake. Test Plan: `ninja check check-functional` Reviewers: #bitcoin_abc, deadalnix Reviewed By: #bitcoin_abc, deadalnix Differential Revision: https://reviews.bitcoinabc.org/D6514
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
…that are used in only one translation unit
Don't use global (external) symbols for symbols that are used in only one translation unit.
Before:
After:
♻️ Think about future generations: save the global namespace from unnecessary pollution! ♻️