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gdb: allow enumeration constants as second operand of BINOP_REPEAT

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This patch adds support for TYPE_CODE_ENUM values to be supplied
as right-hand side operand of the BINOP_REPEAT (@) operator. The
following should now work:

enum {
  sz = 17
};

int
main ()
{
  int arr[sz + 1] = { 0 };
  return 0; /* line 9 here */
}

(gdb) b 9
(gdb) r
(gdb) p arr@sz
$1 = {0 <repeats 17 times>}
(gdb)

A couple of tests is also included in this patch to demonstrate that it is
working as intended.

gdb/Changelog:

2016-04-01  Artemiy Volkov  <artemiyv@acm.org>

	PR gdb/19820
	* eval.c (evaluate_subexp_standard): Allow TYPE_CODE_ENUM to be
        the type of BINOP_REPEAT's second operand.

gdb/testsuite/Changelog:

2016-04-01  Artemiy Volkov  <artemiyv@acm.org>

	PR gdb/19820
	* gdb.base/printcmds.exp: Add artificial arrays tests.
This commit is contained in:
Artemiy Volkov 2016-04-01 16:00:59 +01:00 committed by Yao Qi
parent 83cda17b6f
commit cc63428a4c
4 changed files with 18 additions and 1 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2016-04-01 Artemiy Volkov <artemiyv@acm.org>
PR gdb/19820
* eval.c (evaluate_subexp_standard): Allow TYPE_CODE_ENUM to be
the type of BINOP_REPEAT's second operand.
2016-03-31 Yichao Yu <yyc1992@gmail.com>
PR gdb/19858

3
gdb/eval.c
View File

@ -2427,7 +2427,8 @@ evaluate_subexp_standard (struct type *expect_type,
if (noside == EVAL_SKIP)
goto nosideret;
type = check_typedef (value_type (arg2));
if (TYPE_CODE (type) != TYPE_CODE_INT)
if (TYPE_CODE (type) != TYPE_CODE_INT
&& TYPE_CODE (type) != TYPE_CODE_ENUM)
error (_("Non-integral right operand for \"@\" operator."));
if (noside == EVAL_AVOID_SIDE_EFFECTS)
{

5
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2016-04-01 Artemiy Volkov <artemiyv@acm.org>
PR gdb/19820
* gdb.base/printcmds.exp: Add artificial arrays tests.
2016-03-31 Pedro Alves <palves@redhat.com>
PR gdb/19858

5
gdb/testsuite/gdb.base/printcmds.exp
View File

@ -643,6 +643,11 @@ proc test_artificial_arrays {} {
gdb_test_escape_braces "p int1dim\[0\]${ctrlv}@2${ctrlv}@3" \
"({{0, 1}, {2, 3}, {4, 5}}|\[Cc\]annot.*)" \
{p int1dim[0]@2@3}
gdb_test_escape_braces "p int1dim\[0\]${ctrlv}@TWO" " = {0, 1}" \
{p int1dim[0]@TWO}
gdb_test_escape_braces "p int1dim\[0\]${ctrlv}@TWO${ctrlv}@three" \
"({{0, 1}, {2, 3}, {4, 5}}|\[Cc\]annot.*)" \
{p int1dim[0]@TWO@three}
gdb_test_escape_braces {p/x (short [])0x12345678} \
" = ({0x1234, 0x5678}|{0x5678, 0x1234})"
}