diff options
Diffstat (limited to 'gcc/analyzer')
| -rw-r--r-- | gcc/analyzer/ChangeLog | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog index a7724cd..921b052 100644 --- a/gcc/analyzer/ChangeLog +++ b/gcc/analyzer/ChangeLog @@ -1,3 +1,127 @@ +2022-12-02 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/107948 + * region-model-manager.cc + (region_model_manager::maybe_fold_binop): Fold (0 - VAL) to -VAL. + * region-model.cc (region_model::eval_condition): Handle e.g. + "-X <= 0" as equivalent to X >= 0". + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/106626 + * bounds-checking.cc + (symbolic_past_the_end::describe_final_event): Delete, moving to + symbolic_buffer_overflow::describe_final_event and + symbolic_buffer_over_read::describe_final_event, eliminating + composition of text strings via "byte_str" and "m_dir_str". + (symbolic_past_the_end::m_dir_str): Delete field. + (symbolic_buffer_overflow::symbolic_buffer_overflow): Drop + m_dir_str. + (symbolic_buffer_overflow::describe_final_event): New, as noted + above. + (symbolic_buffer_over_read::symbolic_buffer_overflow): Drop + m_dir_str. + (symbolic_buffer_over_read::describe_final_event): New, as noted + above. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + * bounds-checking.cc (class out_of_bounds): Split out from... + (class concrete_out_of_bounds): New abstract subclass. + (class past_the_end): Rename to... + (class concrete_past_the_end): ...this, and make a subclass of + concrete_out_of_bounds. + (class buffer_overflow): Rename to... + (class concrete_buffer_overflow): ...this, and make a subclass of + concrete_past_the_end. + (class buffer_over_read): Rename to... + (class concrete_buffer_over_read): ...this, and make a subclass of + concrete_past_the_end. + (class buffer_underwrite): Rename to... + (class concrete_buffer_underwrite): ...this, and make a subclass + of concrete_out_of_bounds. + (class buffer_under_read): Rename to... + (class concrete_buffer_under_read): ...this, and make a subclass + of concrete_out_of_bounds. + (class symbolic_past_the_end): Convert to a subclass of + out_of_bounds. + (symbolic_buffer_overflow::get_kind): New. + (symbolic_buffer_over_read::get_kind): New. + (region_model::check_region_bounds): Update for renamings. + * engine.cc (impl_sm_context::set_next_state): Eliminate + "new_ctxt", passing NULL to get_rvalue instead. + (impl_sm_context::warn): Likewise. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/106626 + * bounds-checking.cc (out_of_bounds::get_memory_space): New. + (buffer_overflow::emit): Use it. + (class buffer_overread): Rename to... + (class buffer_over_read): ...this. + (buffer_over_read::emit): Specify which memory space the read is + from, where known. Change "overread" to "over-read". + (class buffer_underflow): Rename to... + (class buffer_underwrite): ...this. + (buffer_underwrite::emit): Specify which memory space the write is + to, where known. Change "underflow" to "underwrite". + (class buffer_underread): Rename to... + (class buffer_under_read): Rename to... + (buffer_under_read::emit): Specify which memory space the read is + from, where known. Change "underread" to "under-read". + (symbolic_past_the_end::get_memory_space): New. + (symbolic_buffer_overflow::emit): Use it. + (class symbolic_buffer_overread): Rename to... + (class symbolic_buffer_over_read): ...this. + (symbolic_buffer_over_read::emit): Specify which memory space the + read is from, where known. Change "overread" to "over-read". + (region_model::check_symbolic_bounds): Update for class renaming. + (region_model::check_region_bounds): Likewise. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/106626 + * bounds-checking.cc (out_of_bounds::maybe_describe_array_bounds): + New. + (buffer_overflow::emit): Call maybe_describe_array_bounds. + (buffer_overread::emit): Likewise. + (buffer_underflow::emit): Likewise. + (buffer_underread::emit): Likewise. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/106626 + * bounds-checking.cc (buffer_overflow::emit): Use inform_n. + Update wording to clarify that we're talking about the size of + the bad access, rather than its position. + (buffer_overread::emit): Likewise. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + * bounds-checking.cc: New file, taken from region-model.cc. + * region-model.cc (class out_of_bounds): Move to + bounds-checking.cc. + (class past_the_end): Likewise. + (class buffer_overflow): Likewise. + (class buffer_overread): Likewise. + (class buffer_underflow): Likewise. + (class buffer_underread): Likewise. + (class symbolic_past_the_end): Likewise. + (class symbolic_buffer_overflow): Likewise. + (class symbolic_buffer_overread): Likewise. + (region_model::check_symbolic_bounds): Likewise. + (maybe_get_integer_cst_tree): Likewise. + (region_model::check_region_bounds): Likewise. + * region-model.h: Add comment. + +2022-12-01 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/107928 + * sm-fd.cc (fd_state_machine::on_bind): Handle m_constant_fd in + the "success" outcome. + (fd_state_machine::on_connect): Likewise. + * sm-fd.dot: Add "constant_fd" state and its transitions. + 2022-11-30 David Malcolm <dmalcolm@redhat.com> * region-model-impl-calls.cc (class kf_fgets): Move to sm-file.cc. |