9a27acc30a
gcc/ChangeLog: * builtins.c (check_strncat_sizes): Pass access_data ctor additional arguments. (expand_builtin_memcmp): Move code to gimple-ssa-warn-access.cc. (expand_builtin_fork_or_exec): Same. * gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Pass compute_objsize additional arguments. (inbounds_memaccess_p): Same. (array_bounds_checker::check_array_bounds): Add an assert. Stash statement in a member. (check_array_bounds_dom_walker::before_dom_children): Same. * gimple-array-bounds.h (array_bounds_checker::m_stmt): New member. * gimple-ssa-sprintf.c (get_destination_size): Add an argument. (handle_printf_call): Pass a new argument. * gimple-ssa-warn-access.cc (get_size_range): Add an argument. (check_access): Add an argument and pass it along to callees. (check_read_access): Make a member function. (pass_waccess::check_strcat): Pass access_data ctor additional arguments. (pass_waccess::check_strncat): Same. (pass_waccess::check_stxcpy): Same. (pass_waccess::check_stxncpy): Same. (pass_waccess::check_strncmp): Same. (pass_waccess::check_read_access): Same. (pass_waccess::check_builtin): Same. (pass_waccess::maybe_check_access_sizes): Same. (pass_waccess::maybe_check_dealloc_call): Same. * gimple-ssa-warn-access.h (check_read_access): Declare a new member function. * pointer-query.cc (compute_objsize_r): Add an argument. (gimple_call_return_array): Same. (gimple_call_alloc_size): Same. (access_ref::access_ref): Same. (access_ref::get_ref): Same. (pointer_query::get_ref): Same. (handle_min_max_size): Pass an arguments to callees. (handle_array_ref): Add an argument. (handle_mem_ref): Same. (compute_objsize): Same. * pointer-query.h (struct access_ref): Adjust signatures. (struct access_data): Same. (gimple_call_alloc_size): Add an argument. (gimple_parm_array_size): Same. (compute_objsize): Same. * tree-ssa-strlen.c (strlen_pass::adjust_last_stmt): Pass an additional argument to compute_objsize. (strlen_pass::maybe_warn_overflow): Same. (maybe_diag_stxncpy_trunc): Same. gcc/testsuite/ChangeLog: * gcc.dg/Wstringop-overflow-22.c: Correct typos. * gcc.dg/Wstringop-overflow-81.c: New test. libstdc++-v3/ChangeLog: * testsuite/21_strings/basic_string/capacity/1.cc: Also suppress -Wstringop-overread. * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc: Same.
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/* Array bounds checking.
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Copyright (C) 2020-2021 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_GIMPLE_ARRAY_BOUNDS_H
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#define GCC_GIMPLE_ARRAY_BOUNDS_H
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class array_bounds_checker
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{
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friend class check_array_bounds_dom_walker;
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public:
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array_bounds_checker (struct function *fun, range_query *v)
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: fun (fun), ranges (v) { }
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void check ();
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private:
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static tree check_array_bounds (tree *tp, int *walk_subtree, void *data);
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bool check_array_ref (location_t, tree, gimple *, bool ignore_off_by_one);
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bool check_mem_ref (location_t, tree, bool ignore_off_by_one);
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void check_addr_expr (location_t, tree, gimple *);
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const value_range *get_value_range (const_tree op, gimple *);
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/* Current function. */
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struct function *fun;
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/* Ranger instance. */
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range_query *ranges;
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/* Current statement. */
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gimple *m_stmt;
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};
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#endif // GCC_GIMPLE_ARRAY_BOUNDS_H
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