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| author | Tom Tromey <tromey@adacore.com> | 2020-11-04 08:49:16 -0700 |
|---|---|---|
| committer | Tom Tromey <tromey@adacore.com> | 2020-11-04 08:49:18 -0700 |
| commit | 10f6a3add6b4bdd1c83494cad9e9497271fe0922 (patch) | |
| tree | 05a6b642c9632e078286abad56a9b5d731ede1e1 /gdb/dwarf2/read.c | |
| parent | b72795a8f573c36aaeedd1a64f58ad52b4c72439 (diff) | |
| download | gdb-10f6a3add6b4bdd1c83494cad9e9497271fe0922.zip gdb-10f6a3add6b4bdd1c83494cad9e9497271fe0922.tar.gz gdb-10f6a3add6b4bdd1c83494cad9e9497271fe0922.tar.bz2 | |
Only use stride for final element type
A DWARF array type may specify a stride. Currently, the DWARF reader
applies this stride to every dimension of an array. However, this
seems incorrect to me -- only the innermost array ought to use the
stride, while outer arrays should compute a stride based on the size
of the inner arrays. This patch arranges to apply the stride only to
the innermost array type. This fixes a bug noticed when running some
Ada tests with -fgnat-encodings=minimal.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* dwarf2/read.c (read_array_type): Only apply stride to innermost
array.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/enum_idx_packed.exp: Add test.
* gdb.ada/enum_idx_packed/foo.adb (Multi_Access):
New variable.
* gdb.ada/enum_idx_packed/pck.ads (Short)
(Multi_Dimension, Multi_Dimension_Access): New types.
Diffstat (limited to 'gdb/dwarf2/read.c')
| -rw-r--r-- | gdb/dwarf2/read.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 364a16d..a417127 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -17097,15 +17097,23 @@ read_array_type (struct die_info *die, struct dwarf2_cu *cu) int i = 0; while (i < range_types.size ()) - type = create_array_type_with_stride (NULL, type, range_types[i++], - byte_stride_prop, bit_stride); + { + type = create_array_type_with_stride (NULL, type, range_types[i++], + byte_stride_prop, bit_stride); + bit_stride = 0; + byte_stride_prop = nullptr; + } } else { size_t ndim = range_types.size (); while (ndim-- > 0) - type = create_array_type_with_stride (NULL, type, range_types[ndim], - byte_stride_prop, bit_stride); + { + type = create_array_type_with_stride (NULL, type, range_types[ndim], + byte_stride_prop, bit_stride); + bit_stride = 0; + byte_stride_prop = nullptr; + } } /* Understand Dwarf2 support for vector types (like they occur on |