mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-19 15:11:08 +08:00
2fdc8546b5
PR analyzer/106479 notes that we don't always show the region-creation event for a memmove from an uninitialized stack region. This occurs when using kf_memcpy_memmove. Fix by passing a src_region hint to region_model::check_for_poison. gcc/analyzer/ChangeLog: PR analyzer/106479 * kf.cc (kf_memcpy_memmove::impl_call_pre): Pass in source region to region_model::check_for_poison. * region-model-asm.cc (region_model::on_asm_stmt): Pass NULL region to region_model::check_for_poison. * region-model.cc (region_model::check_for_poison): Add "src_region" param, and pass it to poisoned_value_diagnostic. (region_model::on_assignment): Pass NULL region to region_model::check_for_poison. (region_model::get_rvalue): Likewise. * region-model.h (region_model::check_for_poison): Add "src_region" param. * sm-fd.cc (fd_state_machine::on_accept): Pass in source region to region_model::check_for_poison. * varargs.cc (kf_va_copy::impl_call_pre): Pass NULL region to region_model::check_for_poison. (kf_va_arg::impl_call_pre): Pass in source region to region_model::check_for_poison. gcc/testsuite/ChangeLog: PR analyzer/106479 * gcc.dg/analyzer/pr104308.c (test_memmove_within_uninit): Remove xfail on region creation event. Signed-off-by: David Malcolm <dmalcolm@redhat.com>
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.