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| author | Doug Evans <xdje42@gmail.com> | 2015-01-31 21:14:17 -0800 |
|---|---|---|
| committer | Doug Evans <xdje42@gmail.com> | 2015-01-31 21:14:17 -0800 |
| commit | 5f4ce105edc3ebbd4b0425d41ccac0064e3cec41 (patch) | |
| tree | 532a355ec8d51ef970e725bd16bce3d28c704aef /gdb/gnu-v3-abi.c | |
| parent | f6b3afbf2fce69c31bd738e0543c55fbd848e74a (diff) | |
| download | gdb-5f4ce105edc3ebbd4b0425d41ccac0064e3cec41.zip gdb-5f4ce105edc3ebbd4b0425d41ccac0064e3cec41.tar.gz gdb-5f4ce105edc3ebbd4b0425d41ccac0064e3cec41.tar.bz2 | |
Be more strict about what kinds of types can be passed.
gdb/ChangeLog:
* gnu-v3-abi.c (gnuv3_dynamic_class): Assert only passed structs
or unions. Return zero if union.
(gnuv3_get_vtable): Call check_typedef. Assert only passed structs.
(gnuv3_rtti_type): Pass already-check_typedef'd value to
gnuv3_get_vtable.
(compute_vtable_size): Assert only passed structs.
(gnuv3_print_vtable): Don't call gnuv3_get_vtable for non-structs.
Diffstat (limited to 'gdb/gnu-v3-abi.c')
| -rw-r--r-- | gdb/gnu-v3-abi.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/gdb/gnu-v3-abi.c b/gdb/gnu-v3-abi.c index 41c6735..a62599b 100644 --- a/gdb/gnu-v3-abi.c +++ b/gdb/gnu-v3-abi.c @@ -202,6 +202,12 @@ gnuv3_dynamic_class (struct type *type) { int fieldnum, fieldelem; + gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT + || TYPE_CODE (type) == TYPE_CODE_UNION); + + if (TYPE_CODE (type) == TYPE_CODE_UNION) + return 0; + if (TYPE_CPLUS_DYNAMIC (type)) return TYPE_CPLUS_DYNAMIC (type) == 1; @@ -246,9 +252,12 @@ gnuv3_get_vtable (struct gdbarch *gdbarch, struct value *vtable_pointer; CORE_ADDR vtable_address; + CHECK_TYPEDEF (container_type); + gdb_assert (TYPE_CODE (container_type) == TYPE_CODE_STRUCT); + /* If this type does not have a virtual table, don't read the first field. */ - if (!gnuv3_dynamic_class (check_typedef (container_type))) + if (!gnuv3_dynamic_class (container_type)) return NULL; /* We do not consult the debug information to find the virtual table. @@ -301,7 +310,7 @@ gnuv3_rtti_type (struct value *value, if (using_enc_p) *using_enc_p = 0; - vtable = gnuv3_get_vtable (gdbarch, value_type (value), + vtable = gnuv3_get_vtable (gdbarch, values_type, value_as_address (value_addr (value))); if (vtable == NULL) return NULL; @@ -821,6 +830,8 @@ compute_vtable_size (htab_t offset_hash, void **slot; struct value_and_voffset search_vo, *current_vo; + gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); + /* If the object is not dynamic, then we are done; as it cannot have dynamic base types either. */ if (!gnuv3_dynamic_class (type)) @@ -949,8 +960,11 @@ gnuv3_print_vtable (struct value *value) } gdbarch = get_type_arch (type); - vtable = gnuv3_get_vtable (gdbarch, type, - value_as_address (value_addr (value))); + + vtable = NULL; + if (TYPE_CODE (type) == TYPE_CODE_STRUCT) + vtable = gnuv3_get_vtable (gdbarch, type, + value_as_address (value_addr (value))); if (!vtable) { |