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| author | Tom de Vries <tdevries@suse.de> | 2020-11-21 18:11:36 +0100 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2020-11-21 18:11:36 +0100 |
| commit | da39d3ba57639b715dea7ce68b6a4a3d70dfcb03 (patch) | |
| tree | 73c704bc9eb70018ad75cf1a686815b899948c4d /gdb | |
| parent | dab7264398ba8f7c476ffbdc965880270ae55c53 (diff) | |
| download | gdb-da39d3ba57639b715dea7ce68b6a4a3d70dfcb03.zip gdb-da39d3ba57639b715dea7ce68b6a4a3d70dfcb03.tar.gz gdb-da39d3ba57639b715dea7ce68b6a4a3d70dfcb03.tar.bz2 | |
[gdb/testsuite] Add clang xfail in gdb.base/vla-ptr.exp
When running gdb.base/vla-ptr.exp with clang-10, we run into this FAIL:
...
(gdb) print td_vla^M
$6 = 0x7fffffffd2b0^M
(gdb) FAIL: gdb.base/vla-ptr.exp: print td_vla
...
Clang 10.0.1 generates the following DWARF for td_vla. A variable DIE:
...
<2><19f>: Abbrev Number: 6 (DW_TAG_variable)
<1a0> DW_AT_location : 0x39 (location list)
<1a4> DW_AT_name : td_vla
<1aa> DW_AT_type : <0x1ae>
....
with typedef type:
...
<2><1ae>: Abbrev Number: 7 (DW_TAG_typedef)
<1af> DW_AT_type : <0x1fc>
<1b3> DW_AT_name : typedef_vla
...
pointing to:
...
<1><1fc>: Abbrev Number: 11 (DW_TAG_array_type)
<1fd> DW_AT_type : <0x1d3>
<2><201>: Abbrev Number: 14 (DW_TAG_subrange_type)
<202> DW_AT_type : <0x1f5>
...
The subrange type is missing the count attribute. This was filed as
llvm PR48247 - "vla var with typedef'd type has incomplete debug info".
Mark this as xfail.
gdb/testsuite/ChangeLog:
2020-11-21 Tom de Vries <tdevries@suse.de>
* gdb.base/vla-ptr.exp: Add XFAIL.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/vla-ptr.exp | 40 |
2 files changed, 43 insertions, 1 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index eed9e44..b89633f 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2020-11-21 Tom de Vries <tdevries@suse.de> + + * gdb.base/vla-ptr.exp: Add XFAIL. + 2020-11-19 Andrew Burgess <andrew.burgess@embecosm.com> * gdb.fortran/array-slices-bad.exp: New file. diff --git a/gdb/testsuite/gdb.base/vla-ptr.exp b/gdb/testsuite/gdb.base/vla-ptr.exp index 346ff00..23b3383 100644 --- a/gdb/testsuite/gdb.base/vla-ptr.exp +++ b/gdb/testsuite/gdb.base/vla-ptr.exp @@ -14,6 +14,7 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. standard_testfile +set using_clang [test_compiler_info clang*] if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } { return -1 @@ -38,4 +39,41 @@ gdb_test "print *vla_ptr" " = 2" "print *vla_ptr (bar)" gdb_breakpoint [gdb_get_line_number "vla_func_bp"] gdb_continue_to_breakpoint "vla_func_bp" -gdb_test "print td_vla" " = \\\{4, 5, 6, 7, 8\\\}" + +gdb_test_multiple "print td_vla" "" { + -re -wrap " = \\\{4, 5, 6, 7, 8\\\}" { + pass $gdb_test_name + } + -re -wrap " = $hex" { + if { $using_clang } { + # Clang 10.0.1 fails to generate complete type info, filed as + # llvm PR48247 - "vla var with typedef'd type has incomplete + # debug info". See note below. + xfail $gdb_test_name + # Verify that despite the incomplete type info, the variable is + # there and has the right value. + gdb_test "p *td_vla@5" " = \\\{4, 5, 6, 7, 8\\\}" + } else { + fail $gdb_test_name + } + } +} + +# Clang 10.0.1 generates this DWARF for td_vla: +# +# A variable DIE: +# <2><19f>: Abbrev Number: 6 (DW_TAG_variable) +# <1a0> DW_AT_location : 0x39 (location list) +# <1a4> DW_AT_name : td_vla +# <1aa> DW_AT_type : <0x1ae> +# with type: +# <2><1ae>: Abbrev Number: 7 (DW_TAG_typedef) +# <1af> DW_AT_type : <0x1fc> +# <1b3> DW_AT_name : typedef_vla +# pointing to: +# <1><1fc>: Abbrev Number: 11 (DW_TAG_array_type) +# <1fd> DW_AT_type : <0x1d3> +# <2><201>: Abbrev Number: 14 (DW_TAG_subrange_type) +# <202> DW_AT_type : <0x1f5> +# +# The subrange type is missing the count attribute. |