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| author | Daniel Jacobowitz <drow@false.org> | 2003-08-22 20:45:55 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <drow@false.org> | 2003-08-22 20:45:55 +0000 |
| commit | 7ed85d2635d9485f39af469ab0dab11611113800 (patch) | |
| tree | f910a7a96a8ba326d8cbb906fdd8d6101f76722a /gdb/gnu-v3-abi.c | |
| parent | eb0d3137b16dbf08ca4870613155080963e36752 (diff) | |
| download | gdb-7ed85d2635d9485f39af469ab0dab11611113800.zip gdb-7ed85d2635d9485f39af469ab0dab11611113800.tar.gz gdb-7ed85d2635d9485f39af469ab0dab11611113800.tar.bz2 | |
* gnu-v3-abi.c (gnuv3_baseclass_offset): Check whether
TYPE_VPTR_FIELDNO is valid.
Diffstat (limited to 'gdb/gnu-v3-abi.c')
| -rw-r--r-- | gdb/gnu-v3-abi.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gdb/gnu-v3-abi.c b/gdb/gnu-v3-abi.c index d9947f9..b18e644 100644 --- a/gdb/gnu-v3-abi.c +++ b/gdb/gnu-v3-abi.c @@ -412,10 +412,15 @@ gnuv3_baseclass_offset (struct type *type, int index, char *valaddr, v3 C++ ABI Section 2.4.I.2.b. Fortunately the ABI guarantees that the vtable pointer will be located at the beginning of the object, so we can bypass the casting. Verify that the TYPE_VPTR_FIELDNO is in fact at the - start of whichever baseclass it resides in, as a sanity measure. */ + start of whichever baseclass it resides in, as a sanity measure - iff + we have debugging information for that baseclass. */ vbasetype = TYPE_VPTR_BASETYPE (type); - if (TYPE_FIELD_BITPOS (vbasetype, TYPE_VPTR_FIELDNO (vbasetype)) != 0) + if (TYPE_VPTR_FIELDNO (vbasetype) < 0) + fill_in_vptr_fieldno (vbasetype); + + if (TYPE_VPTR_FIELDNO (vbasetype) >= 0 + && TYPE_FIELD_BITPOS (vbasetype, TYPE_VPTR_FIELDNO (vbasetype)) != 0) error ("Illegal vptr offset in class %s", TYPE_NAME (vbasetype) ? TYPE_NAME (vbasetype) : "<unknown>"); |