c9b39a4955
PR sanitizer/80998 * sanopt.c (pass_sanopt::execute): Handle IFN_UBSAN_PTR. * tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise. * flag-types.h (enum sanitize_code): Add SANITIZER_POINTER_OVERFLOW. Or it into SANITIZER_UNDEFINED. * ubsan.c: Include gimple-fold.h and varasm.h. (ubsan_expand_ptr_ifn): New function. (instrument_pointer_overflow): New function. (maybe_instrument_pointer_overflow): New function. (instrument_object_size): Formatting fix. (pass_ubsan::execute): Call instrument_pointer_overflow and maybe_instrument_pointer_overflow. * internal-fn.c (expand_UBSAN_PTR): New function. * ubsan.h (ubsan_expand_ptr_ifn): Declare. * sanitizer.def (__ubsan_handle_pointer_overflow, __ubsan_handle_pointer_overflow_abort): New builtins. * tree-ssa-tail-merge.c (merge_stmts_p): Handle IFN_UBSAN_PTR. * internal-fn.def (UBSAN_PTR): New internal function. * opts.c (sanitizer_opts): Add pointer-overflow. * lto-streamer-in.c (input_function): Handle IFN_UBSAN_PTR. * fold-const.c (build_range_check): Compute pointer range check in integral type if pointer arithmetics would be needed. Formatting fixes. gcc/testsuite/ * c-c++-common/ubsan/ptr-overflow-1.c: New test. * c-c++-common/ubsan/ptr-overflow-2.c: New test. libsanitizer/ * ubsan/ubsan_handlers.cc: Cherry-pick upstream r304461. * ubsan/ubsan_checks.inc: Likewise. * ubsan/ubsan_handlers.h: Likewise. From-SVN: r250656
45 lines
2.2 KiB
C++
45 lines
2.2 KiB
C++
//===-- ubsan_checks.inc ----------------------------------------*- C++ -*-===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// List of checks handled by UBSan runtime.
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//
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//===----------------------------------------------------------------------===//
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#ifndef UBSAN_CHECK
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# error "Define UBSAN_CHECK prior to including this file!"
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#endif
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// UBSAN_CHECK(Name, SummaryKind, FSanitizeFlagName)
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// SummaryKind and FSanitizeFlagName should be string literals.
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UBSAN_CHECK(GenericUB, "undefined-behavior", "undefined")
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UBSAN_CHECK(NullPointerUse, "null-pointer-use", "null")
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UBSAN_CHECK(PointerOverflow, "pointer-overflow", "pointer-overflow")
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UBSAN_CHECK(MisalignedPointerUse, "misaligned-pointer-use", "alignment")
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UBSAN_CHECK(InsufficientObjectSize, "insufficient-object-size", "object-size")
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UBSAN_CHECK(SignedIntegerOverflow, "signed-integer-overflow",
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"signed-integer-overflow")
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UBSAN_CHECK(UnsignedIntegerOverflow, "unsigned-integer-overflow",
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"unsigned-integer-overflow")
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UBSAN_CHECK(IntegerDivideByZero, "integer-divide-by-zero",
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"integer-divide-by-zero")
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UBSAN_CHECK(FloatDivideByZero, "float-divide-by-zero", "float-divide-by-zero")
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UBSAN_CHECK(InvalidShiftBase, "invalid-shift-base", "shift-base")
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UBSAN_CHECK(InvalidShiftExponent, "invalid-shift-exponent", "shift-exponent")
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UBSAN_CHECK(OutOfBoundsIndex, "out-of-bounds-index", "bounds")
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UBSAN_CHECK(UnreachableCall, "unreachable-call", "unreachable")
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UBSAN_CHECK(MissingReturn, "missing-return", "return")
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UBSAN_CHECK(NonPositiveVLAIndex, "non-positive-vla-index", "vla-bound")
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UBSAN_CHECK(FloatCastOverflow, "float-cast-overflow", "float-cast-overflow")
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UBSAN_CHECK(InvalidBoolLoad, "invalid-bool-load", "bool")
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UBSAN_CHECK(InvalidEnumLoad, "invalid-enum-load", "enum")
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UBSAN_CHECK(FunctionTypeMismatch, "function-type-mismatch", "function")
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UBSAN_CHECK(InvalidNullReturn, "invalid-null-return",
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"returns-nonnull-attribute")
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UBSAN_CHECK(InvalidNullArgument, "invalid-null-argument", "nonnull-attribute")
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UBSAN_CHECK(DynamicTypeMismatch, "dynamic-type-mismatch", "vptr")
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UBSAN_CHECK(CFIBadType, "cfi-bad-type", "cfi")
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