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Diffstat (limited to 'clang/tools/scan-build-py/README.md')
| -rw-r--r-- | clang/tools/scan-build-py/README.md | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/clang/tools/scan-build-py/README.md b/clang/tools/scan-build-py/README.md index 54bfc37ff76..1b6fc488fa2 100644 --- a/clang/tools/scan-build-py/README.md +++ b/clang/tools/scan-build-py/README.md @@ -41,6 +41,32 @@ goes like this: Use `--help` to know more about the commands. +How to use the experimental Cross Translation Unit analysis +----------------------------------------------------------- + +To run the CTU analysis, a compilation database file has to be created: + + $ intercept-build <your build command> + +To run the Clang Static Analyzer against a compilation database +with CTU analysis enabled, execute: + + $ analyze-build --ctu + +For CTU analysis an additional (function-definition) collection-phase is required. +For debugging purposes, it is possible to separately execute the collection +and the analysis phase. By doing this, the intermediate files used for +the analysis are kept on the disk in `./ctu-dir`. + + # Collect and store the data required by the CTU analysis + $ analyze-build --ctu-collect-only + + # Analyze using the previously collected data + $ analyze-build --ctu-analyze-only + +Use `--help` to get more information about the commands. + + Limitations ----------- |
