[gdb/testsuite] Add target board debug-types
This patch adds a target board debug-types that switches on
-fdebug-types-section by default.
This -fdebug-types-section option is a gcc option that enables the generation
of a .debug_types section, which is only effective for DWARF version 4.
There are two other boards that enable this: dwarf4-gdb-index and fisson, but
while those test some meaningful combination of options, this board is
intended to test only -fdebug-types-section.
Current results with gcc 7.5.0 are:
...
=== gdb Summary ===
# of expected passes 75832
# of unexpected failures 2841
# of expected failures 130
# of known failures 75
# of unresolved testcases 22
# of untested testcases 37
# of unsupported tests 83
...
Related known issues:
- PR gcc/90232 - "gcc drops top-level dies with -fdebug-types-section"
- PR gdb/25875 - "segv in ada_discrete_type_low_bound"
- PR gdb/14148 - "-fdebug-types-section regresses static scope of types"
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2020-04-25 Tom de Vries <tdevries@suse.de>
* boards/debug-types.exp: New file.
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