mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-05 08:51:48 +00:00
232 lines
6.8 KiB
C++
232 lines
6.8 KiB
C++
//===-- ubsan_handlers.h ----------------------------------------*- C++ -*-===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Entry points to the runtime library for Clang's undefined behavior sanitizer.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef UBSAN_HANDLERS_H
|
|
#define UBSAN_HANDLERS_H
|
|
|
|
#include "ubsan_value.h"
|
|
|
|
namespace __ubsan {
|
|
|
|
struct TypeMismatchData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
unsigned char LogAlignment;
|
|
unsigned char TypeCheckKind;
|
|
};
|
|
|
|
#define UNRECOVERABLE(checkname, ...) \
|
|
extern "C" SANITIZER_INTERFACE_ATTRIBUTE NORETURN \
|
|
void __ubsan_handle_ ## checkname( __VA_ARGS__ );
|
|
|
|
#define RECOVERABLE(checkname, ...) \
|
|
extern "C" SANITIZER_INTERFACE_ATTRIBUTE \
|
|
void __ubsan_handle_ ## checkname( __VA_ARGS__ ); \
|
|
extern "C" SANITIZER_INTERFACE_ATTRIBUTE NORETURN \
|
|
void __ubsan_handle_ ## checkname ## _abort( __VA_ARGS__ );
|
|
|
|
/// \brief Handle a runtime type check failure, caused by either a misaligned
|
|
/// pointer, a null pointer, or a pointer to insufficient storage for the
|
|
/// type.
|
|
RECOVERABLE(type_mismatch_v1, TypeMismatchData *Data, ValueHandle Pointer)
|
|
|
|
struct OverflowData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
/// \brief Handle an integer addition overflow.
|
|
RECOVERABLE(add_overflow, OverflowData *Data, ValueHandle LHS, ValueHandle RHS)
|
|
|
|
/// \brief Handle an integer subtraction overflow.
|
|
RECOVERABLE(sub_overflow, OverflowData *Data, ValueHandle LHS, ValueHandle RHS)
|
|
|
|
/// \brief Handle an integer multiplication overflow.
|
|
RECOVERABLE(mul_overflow, OverflowData *Data, ValueHandle LHS, ValueHandle RHS)
|
|
|
|
/// \brief Handle a signed integer overflow for a unary negate operator.
|
|
RECOVERABLE(negate_overflow, OverflowData *Data, ValueHandle OldVal)
|
|
|
|
/// \brief Handle an INT_MIN/-1 overflow or division by zero.
|
|
RECOVERABLE(divrem_overflow, OverflowData *Data,
|
|
ValueHandle LHS, ValueHandle RHS)
|
|
|
|
struct ShiftOutOfBoundsData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &LHSType;
|
|
const TypeDescriptor &RHSType;
|
|
};
|
|
|
|
/// \brief Handle a shift where the RHS is out of bounds or a left shift where
|
|
/// the LHS is negative or overflows.
|
|
RECOVERABLE(shift_out_of_bounds, ShiftOutOfBoundsData *Data,
|
|
ValueHandle LHS, ValueHandle RHS)
|
|
|
|
struct OutOfBoundsData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &ArrayType;
|
|
const TypeDescriptor &IndexType;
|
|
};
|
|
|
|
/// \brief Handle an array index out of bounds error.
|
|
RECOVERABLE(out_of_bounds, OutOfBoundsData *Data, ValueHandle Index)
|
|
|
|
struct UnreachableData {
|
|
SourceLocation Loc;
|
|
};
|
|
|
|
/// \brief Handle a __builtin_unreachable which is reached.
|
|
UNRECOVERABLE(builtin_unreachable, UnreachableData *Data)
|
|
/// \brief Handle reaching the end of a value-returning function.
|
|
UNRECOVERABLE(missing_return, UnreachableData *Data)
|
|
|
|
struct VLABoundData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
/// \brief Handle a VLA with a non-positive bound.
|
|
RECOVERABLE(vla_bound_not_positive, VLABoundData *Data, ValueHandle Bound)
|
|
|
|
// Keeping this around for binary compatibility with (sanitized) programs
|
|
// compiled with older compilers.
|
|
struct FloatCastOverflowData {
|
|
const TypeDescriptor &FromType;
|
|
const TypeDescriptor &ToType;
|
|
};
|
|
|
|
struct FloatCastOverflowDataV2 {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &FromType;
|
|
const TypeDescriptor &ToType;
|
|
};
|
|
|
|
/// Handle overflow in a conversion to or from a floating-point type.
|
|
/// void *Data is one of FloatCastOverflowData* or FloatCastOverflowDataV2*
|
|
RECOVERABLE(float_cast_overflow, void *Data, ValueHandle From)
|
|
|
|
struct InvalidValueData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
/// \brief Handle a load of an invalid value for the type.
|
|
RECOVERABLE(load_invalid_value, InvalidValueData *Data, ValueHandle Val)
|
|
|
|
/// Known implicit conversion check kinds.
|
|
/// Keep in sync with the enum of the same name in CGExprScalar.cpp
|
|
enum ImplicitConversionCheckKind : unsigned char {
|
|
ICCK_IntegerTruncation = 0, // Legacy, was only used by clang 7.
|
|
ICCK_UnsignedIntegerTruncation = 1,
|
|
ICCK_SignedIntegerTruncation = 2,
|
|
};
|
|
|
|
struct ImplicitConversionData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &FromType;
|
|
const TypeDescriptor &ToType;
|
|
/* ImplicitConversionCheckKind */ unsigned char Kind;
|
|
};
|
|
|
|
/// \brief Implict conversion that changed the value.
|
|
RECOVERABLE(implicit_conversion, ImplicitConversionData *Data, ValueHandle Src,
|
|
ValueHandle Dst)
|
|
|
|
/// Known builtin check kinds.
|
|
/// Keep in sync with the enum of the same name in CodeGenFunction.h
|
|
enum BuiltinCheckKind : unsigned char {
|
|
BCK_CTZPassedZero,
|
|
BCK_CLZPassedZero,
|
|
};
|
|
|
|
struct InvalidBuiltinData {
|
|
SourceLocation Loc;
|
|
unsigned char Kind;
|
|
};
|
|
|
|
/// Handle a builtin called in an invalid way.
|
|
RECOVERABLE(invalid_builtin, InvalidBuiltinData *Data)
|
|
|
|
struct FunctionTypeMismatchData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
RECOVERABLE(function_type_mismatch,
|
|
FunctionTypeMismatchData *Data,
|
|
ValueHandle Val)
|
|
|
|
struct NonNullReturnData {
|
|
SourceLocation AttrLoc;
|
|
};
|
|
|
|
/// \brief Handle returning null from function with the returns_nonnull
|
|
/// attribute, or a return type annotated with _Nonnull.
|
|
RECOVERABLE(nonnull_return_v1, NonNullReturnData *Data, SourceLocation *Loc)
|
|
RECOVERABLE(nullability_return_v1, NonNullReturnData *Data, SourceLocation *Loc)
|
|
|
|
struct NonNullArgData {
|
|
SourceLocation Loc;
|
|
SourceLocation AttrLoc;
|
|
int ArgIndex;
|
|
};
|
|
|
|
/// \brief Handle passing null pointer to a function parameter with the nonnull
|
|
/// attribute, or a _Nonnull type annotation.
|
|
RECOVERABLE(nonnull_arg, NonNullArgData *Data)
|
|
RECOVERABLE(nullability_arg, NonNullArgData *Data)
|
|
|
|
struct PointerOverflowData {
|
|
SourceLocation Loc;
|
|
};
|
|
|
|
RECOVERABLE(pointer_overflow, PointerOverflowData *Data, ValueHandle Base,
|
|
ValueHandle Result)
|
|
|
|
/// \brief Known CFI check kinds.
|
|
/// Keep in sync with the enum of the same name in CodeGenFunction.h
|
|
enum CFITypeCheckKind : unsigned char {
|
|
CFITCK_VCall,
|
|
CFITCK_NVCall,
|
|
CFITCK_DerivedCast,
|
|
CFITCK_UnrelatedCast,
|
|
CFITCK_ICall,
|
|
CFITCK_NVMFCall,
|
|
CFITCK_VMFCall,
|
|
};
|
|
|
|
struct CFIBadIcallData {
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
struct CFICheckFailData {
|
|
CFITypeCheckKind CheckKind;
|
|
SourceLocation Loc;
|
|
const TypeDescriptor &Type;
|
|
};
|
|
|
|
/// \brief Handle control flow integrity failure for indirect function calls.
|
|
RECOVERABLE(cfi_bad_icall, CFIBadIcallData *Data, ValueHandle Function)
|
|
|
|
/// \brief Handle control flow integrity failures.
|
|
RECOVERABLE(cfi_check_fail, CFICheckFailData *Data, ValueHandle Function,
|
|
uptr VtableIsValid)
|
|
|
|
struct ReportOptions;
|
|
|
|
extern "C" SANITIZER_INTERFACE_ATTRIBUTE void __ubsan_handle_cfi_bad_type(
|
|
CFICheckFailData *Data, ValueHandle Vtable, bool ValidVtable,
|
|
ReportOptions Opts);
|
|
|
|
}
|
|
|
|
#endif // UBSAN_HANDLERS_H
|