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author | Kaz Kylheku <kaz@kylheku.com> | 2017-06-13 19:08:22 -0700 |
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committer | Kaz Kylheku <kaz@kylheku.com> | 2017-06-13 19:08:22 -0700 |
commit | ed73979d131383a082efa7d6e588ffe47464bb89 (patch) | |
tree | db1c37636d8341d68c455f73e5a64b5edf58a98b /lisplib.c | |
parent | b24c90c1f41eaf04b8989a419d04894c70da42f8 (diff) | |
download | txr-ed73979d131383a082efa7d6e588ffe47464bb89.tar.gz txr-ed73979d131383a082efa7d6e588ffe47464bb89.tar.bz2 txr-ed73979d131383a082efa7d6e588ffe47464bb89.zip |
ffi: fix buggy bitfield allocation.
* ffi.c (make_ffi_type_struct): When there is no room in the
current bitfield, two mistakes are made. When bit_offs is
reset to zero in this case, the dependent variable bits_alloc
that was calculated from it (bits allocated to current unit)
must also be reset. The subsequent shift depends on it.
Secondly, when we establish the memb[i].offs field, that
must come from offs, not from unit_offs, because unit_offs
is always the base offset of the existing cell (which doesn't
have room for the new bitfield in this case); the main offset
variable offs is what gets gets adjusted to the cell which has
room for the new bitfield.
Diffstat (limited to 'lisplib.c')
0 files changed, 0 insertions, 0 deletions