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| author | Sanimir Agovic <sanimir.agovic@intel.com> | 2013-10-12 12:36:16 +0100 |
|---|---|---|
| committer | Sanimir Agovic <sanimir.agovic@intel.com> | 2014-04-11 13:43:50 +0100 |
| commit | 04b19544ef6a97b62b2cc4a3170b900e046ab185 (patch) | |
| tree | 5fd7230a68abe5ef3f36b1411997588b202bd322 /gdb | |
| parent | 26cb189f8b46dbe7b2d485525329a8919005ca8a (diff) | |
| download | gdb-04b19544ef6a97b62b2cc4a3170b900e046ab185.zip gdb-04b19544ef6a97b62b2cc4a3170b900e046ab185.tar.gz gdb-04b19544ef6a97b62b2cc4a3170b900e046ab185.tar.bz2 | |
vla: enable sizeof operator for indirection
This patch enables the sizeof operator for indirections:
1| void foo (size_t n) {
2| int vla[n];
3| int *vla_ptr = &vla;
4| }
(gdb) p sizeof(*vla_ptr)
yields sizeof (size_t) * n.
* eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect
value and retrieve the dynamic type size.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/eval.c | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ebeb2ef..1b989ae 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2014-04-11 Sanimir Agovic <sanimir.agovic@intel.com> + * eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect + value and retrieve the dynamic type size. + +2014-04-11 Sanimir Agovic <sanimir.agovic@intel.com> + * eval.c (evaluate_subexp_for_sizeof) <OP_VAR_VALUE>: If the type passed to sizeof is dynamic evaluate the argument to compute the length. @@ -3026,6 +3026,8 @@ evaluate_subexp_for_sizeof (struct expression *exp, int *pos) && TYPE_CODE (type) != TYPE_CODE_ARRAY) error (_("Attempt to take contents of a non-pointer value.")); type = check_typedef (TYPE_TARGET_TYPE (type)); + if (is_dynamic_type (type)) + type = value_type (value_ind (val)); return value_from_longest (size_type, (LONGEST) TYPE_LENGTH (type)); case UNOP_MEMVAL: |