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Re: [PATCH v2 7/8] Add $_ada_exception convenience variable
> From: Tom Tromey <tromey@adacore.com>
> Cc: Tom Tromey <tromey@adacore.com>
> Date: Thu, 1 Aug 2019 11:04:11 -0600
>
> This adds the $_ada_exception convenience variable. It is set by the
> Ada exception catchpoints, and holds the address of the exception
> currently being thrown. This is useful because it allows more
> fine-grained filtering of exceptions than is possible using the
> existing "catch" syntax.
>
> This also simplifies Ada catchpoints somewhat; because the catchpoint
> must now carry the "kind", it's possible to remove many helper
> functions.
>
> 2019-08-01 Tom Tromey <tromey@adacore.com>
>
> * NEWS: Add $_ada_exception entry.
> * ada-lang.c (struct ada_catchpoint): Add constructor.
> <m_kind>: New member.
> (allocate_location_exception, re_set_exception): Remove
> "ex" parameter.
> (should_stop_exception): Compute $_ada_exception.
> (check_status_exception, print_it_exception)
> (print_one_exception, print_mention_exception): Remove
> "ex" parameter.
> (allocate_location_catch_exception, re_set_catch_exception)
> (check_status_exception, print_it_catch_exception)
> (print_one_catch_exception, print_mention_catch_exception)
> (print_recreate_catch_exception)
> (allocate_location_catch_exception_unhandled)
> (re_set_catch_exception_unhandled)
> (check_status_exception, print_it_catch_exception_unhandled)
> (print_one_catch_exception_unhandled)
> (print_mention_catch_exception_unhandled)
> (print_recreate_catch_exception_unhandled)
> (allocate_location_catch_assert, re_set_catch_assert)
> (check_status_assert, print_it_catch_assert)
> (print_one_catch_assert, print_mention_catch_assert)
> (print_recreate_catch_assert)
> (allocate_location_catch_handlers, re_set_catch_handlers)
> (check_status_handlers, print_it_catch_handlers)
> (print_one_catch_handlers, print_mention_catch_handlers)
> (print_recreate_catch_handlers): Remove.
> (create_ada_exception_catchpoint): Update.
> (initialize_ada_catchpoint_ops): Update.
>
> gdb/doc/ChangeLog
> 2019-08-01 Tom Tromey <tromey@adacore.com>
>
> * gdb.texinfo (Set Catchpoints, Convenience Vars): Document
> $_ada_exception.
>
> gdb/testsuite/ChangeLog
> 2019-08-01 Tom Tromey <tromey@adacore.com>
>
> * gdb.ada/catch_ex_std.exp: Add $_ada_exception test.
Thanks. The documentation parts are approved, but I wonder whether we
should index this new variable, as others are indexed.