[PATCH 0/6] v2 of libdiagnostics

[David Malcolm <dmalcolm@redhat.com>]

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