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[gdb/symtab] Handle DW_TAG_type_unit in process_psymtab_comp_unit

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When running test-case gdb.cp/cpexprs-debug-types.exp with target board
unix/gdb:debug_flags=-gdwarf-5, I run into:
...
(gdb) file cpexprs-debug-types^M
Reading symbols from cpexprs-debug-types...^M
ERROR: Couldn't load cpexprs-debug-types into GDB (eof).
ERROR: Couldn't send delete breakpoints to GDB.
ERROR: GDB process no longer exists
GDB process exited with wait status 23054 exp9 0 0 CHILDKILLED SIGABRT SIGABRT
...

We're running into this abort in process_psymtab_comp_unit:
...
  switch (reader.comp_unit_die->tag)
    {
    case DW_TAG_compile_unit:
      this_cu->unit_type = DW_UT_compile;
      break;
    case DW_TAG_partial_unit:
      this_cu->unit_type = DW_UT_partial;
      break;
    default:
      abort ();
    }
...
because reader.comp_unit_die->tag == DW_TAG_type_unit.

Fix this by adding a DW_TAG_type_unit case.

Tested on x86_64-linux.

gdb/ChangeLog:

2021-02-05  Tom de Vries  <tdevries@suse.de>

	PR symtab/27333
	* dwarf2/read.c (process_psymtab_comp_unit): Handle DW_TAG_type_unit.
This commit is contained in:
Tom de Vries
2021-02-05 17:47:07 +01:00
parent 0e857c8288
commit e77b0004dd
2 changed files with 8 additions and 0 deletions
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5
gdb/ChangeLog
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@@ -1,3 +1,8 @@
2021-02-05 Tom de Vries <tdevries@suse.de>
PR symtab/27333
* dwarf2/read.c (process_psymtab_comp_unit): Handle DW_TAG_type_unit.
2021-02-05 Tom de Vries <tdevries@suse.de>
PR breakpoints/27313

3
gdb/dwarf2/read.c
View File

@@ -7836,6 +7836,9 @@ process_psymtab_comp_unit (dwarf2_per_cu_data *this_cu,
case DW_TAG_partial_unit:
this_cu->unit_type = DW_UT_partial;
break;
case DW_TAG_type_unit:
this_cu->unit_type = DW_UT_type;
break;
default:
abort ();
}