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path: root/gcc/c-family/c-ubsan.h
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2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r279813
2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-06-13Implement no_sanitize function attributeMartin Liska1-3/+0
2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-c++-common/ubsan/attrib-2.c (float_cast2): Enhance the test by adding no_sanitize attribute. * gcc.dg/asan/use-after-scope-4.c: Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-attribs.c (add_no_sanitize_value): New function. (handle_no_sanitize_attribute): Likewise. (handle_no_sanitize_address_attribute): Use the function. (handle_no_sanitize_thread_attribute): New function. (handle_no_address_safety_analysis_attribute): Use add_no_sanitize_value. (handle_no_sanitize_undefined_attribute): Likewise. * c-common.h: Declare new functions. * c-ubsan.c (ubsan_instrument_division): Use sanitize_flags_p. (ubsan_instrument_shift): Likewise. (ubsan_instrument_bounds): Likewise. (ubsan_maybe_instrument_array_ref): Likewise. (ubsan_maybe_instrument_reference_or_call): Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * asan.c (asan_sanitize_stack_p): Use sanitize_flags_p. (gate_asan): Likewise. * asan.h (asan_no_sanitize_address_p): Remove the function. (sanitize_flags_p): New function. * builtins.def: Fix coding style. * common.opt: Use renamed enum value. * convert.c (convert_to_integer_1): Use sanitize_flags_p. * doc/extend.texi: Document no_sanitize attribute. * flag-types.h (enum sanitize_code): Rename SANITIZE_NONDEFAULT to SANITIZE_UNDEFINED_NONDEFAULT. * gcc.c (sanitize_spec_function): Use the renamed enum value. * gimple-fold.c (optimize_atomic_compare_exchange_p): Use sanitize_flags_p. * gimplify.c (gimplify_function_tree): Likewise. * ipa-inline.c (sanitize_attrs_match_for_inline_p): Likewise. * opts.c (parse_no_sanitize_attribute): New function. (common_handle_option): Use renamed enum value. * opts.h (parse_no_sanitize_attribute): Declare. * tree.c (sanitize_flags_p): New function. * tree.h: Declared here. * tsan.c: Use sanitize_flags_p. * ubsan.c (ubsan_expand_null_ifn): Likewise. (instrument_mem_ref): Likewise. (instrument_bool_enum_load): Likewise. (do_ubsan_in_current_function): Remove the function. (pass_ubsan::execute): Use sanitize_flags_p. * ubsan.h: Remove do_ubsan_in_current_function * tree-cfg.c (print_no_sanitize_attr_value): New function. (dump_function_to_file): Use it here. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * class.c (build_base_path): Use sanitize_flags_p. * cp-gimplify.c (cp_genericize_r): Likewise. (cp_genericize_tree): Likewise. (cp_genericize): Likewise. * cp-ubsan.c (cp_ubsan_instrument_vptr_p): Likewise. * decl.c (compute_array_index_type): Likewise. (start_preparsed_function): Likewise. * decl2.c (one_static_initialization_or_destruction): Likewise. * init.c (finish_length_check): Likewise. * lambda.c (maybe_add_lambda_conv_op): Likewise. * typeck.c (cp_build_binary_op): Likewise. (build_static_cast_1): Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-convert.c (convert): Use sanitize_flags_p. * c-decl.c (grokdeclarator): Likewise. * c-typeck.c (convert_for_assignment): Likewise. (c_finish_return): Likewise. (build_binary_op): Likewise. From-SVN: r249158
2017-03-31re PR sanitizer/79572 (reference binding to null pointer not reported with ↵Jakub Jelinek1-1/+1
-fsanitize=undefined) PR c++/79572 * c-ubsan.h (ubsan_maybe_instrument_reference): Change argument to tree *. * c-ubsan.c (ubsan_maybe_instrument_reference): Likewise. Handle not just NOP_EXPR to REFERENCE_TYPE, but also INTEGER_CST with REFERENCE_TYPE. * cp-gimplify.c (cp_genericize_r): Sanitize INTEGER_CSTs with REFERENCE_TYPE. Adjust ubsan_maybe_instrument_reference caller for NOP_EXPR to REFERENCE_TYPE. * g++.dg/ubsan/null-8.C: New test. From-SVN: r246621
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r232055
2015-01-08ubsan.c (do_ubsan_in_current_function): New.Jason Merrill1-0/+3
gcc/ * ubsan.c (do_ubsan_in_current_function): New. (pass_ubsan::gate): Use it. * ubsan.h: Declare it. * convert.c (convert_to_integer): Use it. gcc/c-family/ * c-ubsan.c (ubsan_maybe_instrument_array_ref): Use do_ubsan_in_current_function. (ubsan_maybe_instrument_reference_or_call): Likewise. * c-ubsan.h: Declare it. gcc/cp/ * cp-gimplify.c (cp_genericize): Use do_ubsan_in_current_function. * decl.c (compute_array_index_type): Likewise. * init.c (build_vec_init): Likewise. * typeck.c (cp_build_binary_op): Likewise. From-SVN: r219360
2015-01-05Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r219188
2014-08-01opts.c (common_handle_option): Handle -fsanitize=alignment.Jakub Jelinek1-0/+2
* opts.c (common_handle_option): Handle -fsanitize=alignment. * ubsan.h (enum ubsan_null_ckind): Add UBSAN_CTOR_CALL. (ubsan_expand_bounds_ifn, ubsan_expand_null_ifn): Change return type to bool. * stor-layout.h (min_align_of_type): New prototype. * asan.c (pass_sanopt::execute): Don't perform gsi_next if ubsan_expand* told us not to do it. Remove the extra gsi_end_p check. * ubsan.c: Include builtins.h. (ubsan_expand_bounds_ifn): Change return type to bool, always return true. (ubsan_expand_null_ifn): Change return type to bool, change argument to gimple_stmt_iterator *. Handle both null and alignment sanitization, take type from ckind argument's type rather than first argument. (instrument_member_call): Removed. (instrument_mem_ref): Remove t argument, add mem and base arguments. Handle both null and alignment sanitization, don't say whole struct access is member access. Build 3 argument IFN_UBSAN_NULL call instead of 2 argument. (instrument_null): Adjust instrument_mem_ref caller. Don't instrument calls here. (pass_ubsan::gate, pass_ubsan::execute): Handle SANITIZE_ALIGNMENT like SANITIZE_NULL. * stor-layout.c (min_align_of_type): New function. * flag-types.h (enum sanitize_code): Add SANITIZE_ALIGNMENT. Or it into SANITIZE_UNDEFINED. * doc/invoke.texi (-fsanitize=alignment): Document. cp/ * cp-gimplify.c (cp_genericize_r): For -fsanitize=null and/or -fsanitize=alignment call ubsan_maybe_instrument_reference for casts to REFERENCE_TYPE and ubsan_maybe_instrument_member_call for calls to member functions. c-family/ * c-common.h (min_align_of_type): Removed prototype. * c-common.c (min_align_of_type): Removed. * c-ubsan.h (ubsan_maybe_instrument_reference, ubsan_maybe_instrument_member_call): New prototypes. * c-ubsan.c: Include stor-layout.h and builtins.h. (ubsan_maybe_instrument_reference_or_call, ubsan_maybe_instrument_reference, ubsan_maybe_instrument_call): New functions. testsuite/ * c-c++-common/ubsan/align-1.c: New test. * c-c++-common/ubsan/align-2.c: New test. * c-c++-common/ubsan/align-3.c: New test. * c-c++-common/ubsan/align-4.c: New test. * c-c++-common/ubsan/align-5.c: New test. * c-c++-common/ubsan/attrib-4.c: New test. * g++.dg/ubsan/align-1.C: New test. * g++.dg/ubsan/align-2.C: New test. * g++.dg/ubsan/align-3.C: New test. * g++.dg/ubsan/attrib-1.C: New test. * g++.dg/ubsan/null-1.C: New test. * g++.dg/ubsan/null-2.C: New test. From-SVN: r213406
2014-06-20asan.c (pass_sanopt::execute): Handle IFN_UBSAN_BOUNDS.Marek Polacek1-0/+3
* asan.c (pass_sanopt::execute): Handle IFN_UBSAN_BOUNDS. * flag-types.h (enum sanitize_code): Add SANITIZE_BOUNDS and or it into SANITIZE_UNDEFINED. * doc/invoke.texi: Describe -fsanitize=bounds. * gimplify.c (gimplify_call_expr): Add gimplification of internal functions created in the FEs. * internal-fn.c: Move "internal-fn.h" after "tree.h". (expand_UBSAN_BOUNDS): New function. * internal-fn.def (UBSAN_BOUNDS): New internal function. * internal-fn.h: Don't define internal functions here. * opts.c (common_handle_option): Add -fsanitize=bounds. * sanitizer.def (BUILT_IN_UBSAN_HANDLE_OUT_OF_BOUNDS, BUILT_IN_UBSAN_HANDLE_OUT_OF_BOUNDS_ABORT): Add. * tree-core.h: Define internal functions here. (struct tree_base): Add ifn field. * tree-pretty-print.c: Include "internal-fn.h". (dump_generic_node): Handle functions without CALL_EXPR_FN. * tree.c (get_callee_fndecl): Likewise. (build_call_expr_internal_loc): New function. * tree.def (CALL_EXPR): Update description. * tree.h (CALL_EXPR_IFN): Define. (build_call_expr_internal_loc): Declare. * ubsan.c (get_ubsan_type_info_for_type): Return 0 for non-arithmetic types. (ubsan_type_descriptor): Change bool parameter to enum ubsan_print_style. Adjust the code. Add handling of UBSAN_PRINT_ARRAY. (ubsan_expand_bounds_ifn): New function. (ubsan_expand_null_ifn): Adjust ubsan_type_descriptor call. (ubsan_build_overflow_builtin): Likewise. (instrument_bool_enum_load): Likewise. (ubsan_instrument_float_cast): Likewise. * ubsan.h (enum ubsan_print_style): New enum. (ubsan_expand_bounds_ifn): Declare. (ubsan_type_descriptor): Adjust declaration. Use a default parameter. c-family/ * c-gimplify.c: Include "c-ubsan.h" and "pointer-set.h". (ubsan_walk_array_refs_r): New function. (c_genericize): Instrument array bounds. * c-ubsan.c: Include "internal-fn.h". (ubsan_instrument_division): Mark instrumented arrays as having side effects. Adjust ubsan_type_descriptor call. (ubsan_instrument_shift): Likewise. (ubsan_instrument_vla): Adjust ubsan_type_descriptor call. (ubsan_instrument_bounds): New function. (ubsan_array_ref_instrumented_p): New function. (ubsan_maybe_instrument_array_ref): New function. * c-ubsan.h (ubsan_instrument_bounds): Declare. (ubsan_array_ref_instrumented_p): Declare. (ubsan_maybe_instrument_array_ref): Declare. testsuite/ * c-c++-common/ubsan/bounds-1.c: New test. * c-c++-common/ubsan/bounds-2.c: New test. * c-c++-common/ubsan/bounds-3.c: New test. * c-c++-common/ubsan/bounds-4.c: New test. * c-c++-common/ubsan/bounds-5.c: New test. * c-c++-common/ubsan/bounds-6.c: New test. From-SVN: r211859
2014-01-02Update copyright years in gcc/Richard Sandiford1-1/+1
From-SVN: r206289
2013-11-22ubsan.c (ubsan_source_location): Don't crash on unknown locations.Jakub Jelinek1-0/+1
* ubsan.c (ubsan_source_location): Don't crash on unknown locations. (ubsan_pass): Ignore clobber stmts. * sanitizer.def (BUILT_IN_UBSAN_HANDLE_MISSING_RETURN): New built-in. * opts.c (common_handle_option): Add -fsanitize=return. * flag-types.h (enum sanitize_code): Add SANITIZE_RETURN and or it into SANITIZE_UNDEFINED. c-family/ * c-ubsan.h (ubsan_instrument_return): New prototype. * c-ubsan.c (ubsan_instrument_return): New function. cp/ * cp-gimplify.c: Include target.h and c-family/c-ubsan.h. (cp_ubsan_maybe_instrument_return): New function. (cp_genericize): Call it if -fsanitize=return. testsuite/ * g++.dg/ubsan/return-1.C: New test. * g++.dg/ubsan/return-2.C: New test. From-SVN: r205283
2013-11-03Implement -fsanitize=vla-bound.Marek Polacek1-0/+1
* opts.c (common_handle_option): Handle vla-bound. * sanitizer.def (BUILT_IN_UBSAN_HANDLE_VLA_BOUND_NOT_POSITIVE): Define. * flag-types.h (enum sanitize_code): Add SANITIZE_VLA. * asan.c (initialize_sanitizer_builtins): Build BT_FN_VOID_PTR_PTR. c-family/ * c-ubsan.c: Don't include hash-table.h. (ubsan_instrument_vla): New function. * c-ubsan.h: Declare it. cp/ * decl.c (cp_finish_decl): Move C++1y bounds checking... (compute_array_index_type): ...here. Add VLA instrumentation. Call stabilize_vla_size. (grokdeclarator): Don't call stabilize_vla_size here. c/ * c-decl.c (grokdeclarator): Add VLA instrumentation. testsuite/ * g++.dg/ubsan/cxx1y-vla.C: New test. * c-c++-common/ubsan/vla-3.c: New test. * c-c++-common/ubsan/vla-2.c: New test. * c-c++-common/ubsan/vla-4.c: New test. * c-c++-common/ubsan/vla-1.c: New test. From-SVN: r204334
2013-08-30Merge ubsan into trunk.Marek Polacek1-0/+27
From-SVN: r202113
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