We currently have a couple of formats into which our diagnostics can be serialized: (a) gcc's own json format and (b) SARIF, via:
-fdiagnostics-format=json-stderr (and -fdiagnostics-format=json) -fdiagnostics-format=json-file -fdiagnostics-format=sarif-stderr -fdiagnostics-format=sarif-file This experimental patch kit implements the ability for GCC to replay these serialized diagnostics - and thus to use GCC's diagnostic printing machinery to print the output of any tool that can write to these formats. It implements the replayers as gcc frontends, handling .json and .sarif files, so that in theory you can write: gcc foo.sarif and have gcc replay things. Unfortunately that doesn't quite work: you have to tell it -S, and if the file isn't found, it thinks it's a linker script. For example, here's the output of replaying some of the files from the SARIF tutorial [https://github.com/microsoft/sarif-tutorials]: e.g. the results of a javascript linter: $ ./xgcc -B. -S ../../../sarif-tutorials/samples/1-Introduction/simple-example.sarif file:///C:/dev/sarif/sarif-tutorials/samples/Introduction/simple-example.js:1:5: error: 'x' is assigned a value but never used. [no-unused-vars] (the no-unused-vars is actually a hyperlink to https://eslint.org/docs/rules/no-unused-vars in my terminal) and a Python analyzer: $ ./xgcc -B. -S -xsarif ../../../sarif-tutorials/samples/3-Beyond-basics/bad-eval-with-code-flow.sarif 3-Beyond-basics/bad-eval-with-code-flow.py:8:1: warning: Use of tainted variable 'raw_input' in the insecure function 'eval'. [PY2335] events 1-2 | | +--> event 3 | | As you can see, it has some issues finding source code when replaying things (there's an example in the final patch in the kit that manages this). Thoughts? Would it be better to have an explicit tool for this (e.g. "gcc-replay-sarif"), rather than have it as a frontend? Doesn't yet bootstrap, and has FIXMEs and TODOs but posting now in the hope of getting feedback. David Malcolm (12): diagnostics: add ability to associate diagnostics with rules from coding standards diagnostics: associate rules with plugins in SARIF output Add more emit_diagnostic overloads json: add json parsing support Placeholder libcpp fixups prune.exp: move multiline-handling to before other pruning Add deferred-locations.h/cc Add json-reader.h/cc Add json frontend Add sarif frontend Fixups to diagnostic-format-sarif.cc Work-in-progress of path remapping gcc/Makefile.in | 2 +- gcc/common.opt | 4 + gcc/deferred-locations.cc | 231 ++ gcc/deferred-locations.h | 52 + gcc/diagnostic-client-data-hooks.h | 18 - gcc/diagnostic-client-plugin.h | 43 + gcc/diagnostic-core.h | 7 + gcc/diagnostic-format-json.cc | 1 + gcc/diagnostic-format-sarif.cc | 303 ++- gcc/diagnostic-metadata.h | 65 +- gcc/diagnostic.cc | 73 + gcc/diagnostic.h | 3 + gcc/doc/invoke.texi | 10 + gcc/doc/plugins.texi | 17 +- gcc/input.cc | 107 +- gcc/input.h | 18 +- gcc/json-parsing.cc | 2391 +++++++++++++++++ gcc/json-parsing.h | 94 + gcc/json-reader.cc | 122 + gcc/json-reader.h | 107 + gcc/json.cc | 2 +- gcc/json.h | 59 +- gcc/json/Make-lang.in | 131 + gcc/json/config-lang.in | 34 + gcc/json/json-frontend.cc | 176 ++ gcc/json/json-replay.cc | 614 +++++ gcc/json/json-replay.h | 26 + gcc/json/lang-specs.h | 26 + gcc/json/lang.opt | 31 + gcc/opts.cc | 4 + gcc/plugin.cc | 36 +- gcc/plugin.h | 12 +- gcc/sarif/Make-lang.in | 132 + gcc/sarif/config-lang.in | 34 + gcc/sarif/lang-specs.h | 26 + gcc/sarif/lang.opt | 31 + gcc/sarif/sarif-frontend.cc | 191 ++ gcc/sarif/sarif-replay.cc | 1528 +++++++++++ gcc/sarif/sarif-replay.h | 26 + gcc/selftest-run-tests.cc | 1 + gcc/selftest.h | 1 + .../plugin/diagnostic-test-metadata-sarif.c | 39 + .../gcc.dg/plugin/diagnostic-test-metadata.c | 2 +- .../plugin/diagnostic_plugin_test_metadata.c | 13 +- gcc/testsuite/gcc.dg/plugin/plugin.exp | 4 +- .../invalid-json-array-missing-comma.json | 6 + ...nvalid-json-array-with-trailing-comma.json | 6 + .../json/invalid-json-bad-token.json | 6 + .../invalid-json-object-missing-comma.json | 7 + ...valid-json-object-with-trailing-comma.json | 6 + .../invalid-jsondump-diag-not-an-object.json | 6 + .../invalid-jsondump-kind-not-a-string.json | 20 + .../json/invalid-jsondump-not-an-array.json | 6 + gcc/testsuite/json/json.exp | 50 + gcc/testsuite/json/signal-1.c.json | 131 + gcc/testsuite/lib/json-dg.exp | 233 ++ gcc/testsuite/lib/json.exp | 36 + gcc/testsuite/lib/prune.exp | 14 +- gcc/testsuite/lib/sarif-dg.exp | 233 ++ gcc/testsuite/lib/sarif.exp | 36 + .../sarif/bad-eval-with-code-flow.py | 10 + gcc/testsuite/sarif/escaped-braces.sarif | 19 + .../invalid-json-array-missing-comma.sarif | 6 + ...valid-json-array-with-trailing-comma.sarif | 6 + .../sarif/invalid-json-bad-token.sarif | 6 + .../invalid-json-object-missing-comma.sarif | 7 + ...alid-json-object-with-trailing-comma.sarif | 6 + .../sarif/invalid-sarif-bad-runs.sarif | 7 + ...f-missing-arguments-for-placeholders.sarif | 14 + .../sarif/invalid-sarif-no-runs.sarif | 6 + .../sarif/invalid-sarif-no-version.sarif | 6 + .../invalid-sarif-non-object-in-runs.sarif | 7 + .../sarif/invalid-sarif-not-an-object.sarif | 6 + ...ot-enough-arguments-for-placeholders.sarif | 14 + .../invalid-sarif-version-not-a-string.sarif | 6 + .../sarif/malformed-placeholder.sarif | 15 + gcc/testsuite/sarif/null-runs.sarif | 2 + .../sarif/roundtrip-signal-1.c.sarif | 398 +++ gcc/testsuite/sarif/sarif.exp | 50 + gcc/testsuite/sarif/signal-1.c.sarif | 362 +++ gcc/testsuite/sarif/spec-example-1.sarif | 15 + gcc/testsuite/sarif/spec-example-2.sarif | 74 + gcc/testsuite/sarif/spec-example-3.sarif | 67 + gcc/testsuite/sarif/spec-example-4.sarif | 758 ++++++ .../sarif/tutorial-example-foo.sarif | 130 + gcc/toplev.cc | 2 + gcc/tree-diagnostic-client-data-hooks.cc | 36 +- libcpp/include/line-map.h | 7 +- libcpp/line-map.cc | 3 +- 89 files changed, 9500 insertions(+), 188 deletions(-) create mode 100644 gcc/deferred-locations.cc create mode 100644 gcc/deferred-locations.h create mode 100644 gcc/diagnostic-client-plugin.h create mode 100644 gcc/json-parsing.cc create mode 100644 gcc/json-parsing.h create mode 100644 gcc/json-reader.cc create mode 100644 gcc/json-reader.h create mode 100644 gcc/json/Make-lang.in create mode 100644 gcc/json/config-lang.in create mode 100644 gcc/json/json-frontend.cc create mode 100644 gcc/json/json-replay.cc create mode 100644 gcc/json/json-replay.h create mode 100644 gcc/json/lang-specs.h create mode 100644 gcc/json/lang.opt create mode 100644 gcc/sarif/Make-lang.in create mode 100644 gcc/sarif/config-lang.in create mode 100644 gcc/sarif/lang-specs.h create mode 100644 gcc/sarif/lang.opt create mode 100644 gcc/sarif/sarif-frontend.cc create mode 100644 gcc/sarif/sarif-replay.cc create mode 100644 gcc/sarif/sarif-replay.h create mode 100644 gcc/testsuite/gcc.dg/plugin/diagnostic-test-metadata-sarif.c create mode 100644 gcc/testsuite/json/invalid-json-array-missing-comma.json create mode 100644 gcc/testsuite/json/invalid-json-array-with-trailing-comma.json create mode 100644 gcc/testsuite/json/invalid-json-bad-token.json create mode 100644 gcc/testsuite/json/invalid-json-object-missing-comma.json create mode 100644 gcc/testsuite/json/invalid-json-object-with-trailing-comma.json create mode 100644 gcc/testsuite/json/invalid-jsondump-diag-not-an-object.json create mode 100644 gcc/testsuite/json/invalid-jsondump-kind-not-a-string.json create mode 100644 gcc/testsuite/json/invalid-jsondump-not-an-array.json create mode 100644 gcc/testsuite/json/json.exp create mode 100644 gcc/testsuite/json/signal-1.c.json create mode 100644 gcc/testsuite/lib/json-dg.exp create mode 100644 gcc/testsuite/lib/json.exp create mode 100644 gcc/testsuite/lib/sarif-dg.exp create mode 100644 gcc/testsuite/lib/sarif.exp create mode 100644 gcc/testsuite/sarif/bad-eval-with-code-flow.py create mode 100644 gcc/testsuite/sarif/escaped-braces.sarif create mode 100644 gcc/testsuite/sarif/invalid-json-array-missing-comma.sarif create mode 100644 gcc/testsuite/sarif/invalid-json-array-with-trailing-comma.sarif create mode 100644 gcc/testsuite/sarif/invalid-json-bad-token.sarif create mode 100644 gcc/testsuite/sarif/invalid-json-object-missing-comma.sarif create mode 100644 gcc/testsuite/sarif/invalid-json-object-with-trailing-comma.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-bad-runs.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-missing-arguments-for-placeholders.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-no-runs.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-no-version.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-non-object-in-runs.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-not-an-object.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-not-enough-arguments-for-placeholders.sarif create mode 100644 gcc/testsuite/sarif/invalid-sarif-version-not-a-string.sarif create mode 100644 gcc/testsuite/sarif/malformed-placeholder.sarif create mode 100644 gcc/testsuite/sarif/null-runs.sarif create mode 100644 gcc/testsuite/sarif/roundtrip-signal-1.c.sarif create mode 100644 gcc/testsuite/sarif/sarif.exp create mode 100644 gcc/testsuite/sarif/signal-1.c.sarif create mode 100644 gcc/testsuite/sarif/spec-example-1.sarif create mode 100644 gcc/testsuite/sarif/spec-example-2.sarif create mode 100644 gcc/testsuite/sarif/spec-example-3.sarif create mode 100644 gcc/testsuite/sarif/spec-example-4.sarif create mode 100644 gcc/testsuite/sarif/tutorial-example-foo.sarif -- 2.26.3
