Here's v2 of the "libdiagnostics" shared library idea; see: https://gcc.gnu.org/wiki/libdiagnostics
As in v1, patch 1 (for GCC) shows libdiagnostic.h (the public header file), along with examples of simple self-contained programs that show various uses of the API. As in v1, patch 2 (for GCC) is the work-in-progress implementation. Patch 3 (for GCC) adds a new libdiagnostics++.h, a wrapper API providing some syntactic sugar when using the API from C++. I've been using this to "eat my own dogfood" and write a simple SARIF-dumping tool: https://github.com/davidmalcolm/libdiagnostics-sarif-dump Patch 4 (for GCC) is an internal change needed by patch 1. Patch 5 (for GCC) updates GCC's source printing code so that when there's no column information, we don't print annotation lines. This fixes the extra lines seen using it from gas discussed in: https://gcc.gnu.org/pipermail/gcc-patches/2023-November/635575.html Patch 6 (for binutils) is an updated version of the experiment at using the API from gas. Thoughts? David Malcolm (5): libdiagnostics v2: header and examples libdiagnostics v2: work-in-progress implementation libdiagnostics v2: add C++ wrapper API diagnostics: add diagnostic_context::get_location_text diagnostics: don't print annotation lines when there's no column info gcc/Makefile.in | 131 +- gcc/configure | 2 +- gcc/configure.ac | 2 +- gcc/diagnostic-show-locus.cc | 26 +- gcc/diagnostic.cc | 35 +- gcc/diagnostic.h | 2 + gcc/libdiagnostics++.h | 378 +++++ gcc/libdiagnostics.cc | 1306 +++++++++++++++++ gcc/libdiagnostics.h | 602 ++++++++ gcc/libdiagnostics.map | 63 + .../libdiagnostics.dg/libdiagnostics.exp | 544 +++++++ gcc/testsuite/libdiagnostics.dg/test-dump.c | 55 + .../libdiagnostics.dg/test-error-with-note.c | 57 + .../libdiagnostics.dg/test-error-with-note.cc | 47 + gcc/testsuite/libdiagnostics.dg/test-error.c | 49 + gcc/testsuite/libdiagnostics.dg/test-error.cc | 40 + .../libdiagnostics.dg/test-fix-it-hint.c | 49 + .../libdiagnostics.dg/test-fix-it-hint.cc | 44 + .../libdiagnostics.dg/test-helpers++.h | 28 + .../libdiagnostics.dg/test-helpers.h | 29 + .../libdiagnostics.dg/test-labelled-ranges.c | 52 + .../libdiagnostics.dg/test-labelled-ranges.cc | 43 + .../libdiagnostics.dg/test-logical-location.c | 60 + .../libdiagnostics.dg/test-metadata.c | 54 + .../libdiagnostics.dg/test-multiple-lines.c | 61 + .../libdiagnostics.dg/test-no-column.c | 41 + .../test-note-with-fix-it-hint.c | 52 + .../test-text-sink-options.c | 46 + .../libdiagnostics.dg/test-warning.c | 52 + .../test-write-sarif-to-file.c | 46 + .../test-write-text-to-file.c | 47 + 31 files changed, 4018 insertions(+), 25 deletions(-) create mode 100644 gcc/libdiagnostics++.h create mode 100644 gcc/libdiagnostics.cc create mode 100644 gcc/libdiagnostics.h create mode 100644 gcc/libdiagnostics.map create mode 100644 gcc/testsuite/libdiagnostics.dg/libdiagnostics.exp create mode 100644 gcc/testsuite/libdiagnostics.dg/test-dump.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-error-with-note.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-error-with-note.cc create mode 100644 gcc/testsuite/libdiagnostics.dg/test-error.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-error.cc create mode 100644 gcc/testsuite/libdiagnostics.dg/test-fix-it-hint.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-fix-it-hint.cc create mode 100644 gcc/testsuite/libdiagnostics.dg/test-helpers++.h create mode 100644 gcc/testsuite/libdiagnostics.dg/test-helpers.h create mode 100644 gcc/testsuite/libdiagnostics.dg/test-labelled-ranges.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-labelled-ranges.cc create mode 100644 gcc/testsuite/libdiagnostics.dg/test-logical-location.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-metadata.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-multiple-lines.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-no-column.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-note-with-fix-it-hint.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-text-sink-options.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-warning.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-write-sarif-to-file.c create mode 100644 gcc/testsuite/libdiagnostics.dg/test-write-text-to-file.c -- 2.26.3