https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114348
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Malcolm <dmalc...@gcc.gnu.org>: https://gcc.gnu.org/g:0bf99b1b7eda2f4c34b9f56b895980ea1c261765 commit r14-9554-g0bf99b1b7eda2f4c34b9f56b895980ea1c261765 Author: David Malcolm <dmalc...@redhat.com> Date: Tue Mar 19 13:57:35 2024 -0400 diagnostics: fix corrupt json/SARIF on stderr [PR114348] Various values of -fdiagnostics-format= request machine-readable output on stderr, using JSON, but in various places we use fnotice to write free-form text to stderr, such as "compilation terminated", leading to corrupt JSON. Fix by having fnotice skip the output for such cases. gcc/ChangeLog: PR middle-end/114348 * diagnostic-format-json.cc (json_stderr_output_format::machine_readable_stderr_p): New. (json_file_output_format::machine_readable_stderr_p): New. * diagnostic-format-sarif.cc (sarif_stream_output_format::machine_readable_stderr_p): New. (sarif_file_output_format::machine_readable_stderr_p): New. * diagnostic.cc (diagnostic_context::action_after_output): Move "fnotice" to before "finish" call, so that we still have the diagnostic_context. (fnotice): Bail out if the user requested one of the machine-readable diagnostic output formats on stderr. * diagnostic.h (diagnostic_output_format::machine_readable_stderr_p): New pure virtual function. (diagnostic_text_output_format::machine_readable_stderr_p): New. (diagnostic_context::get_output_format): New accessor. Signed-off-by: David Malcolm <dmalc...@redhat.com>