614 lines
18 KiB
C
614 lines
18 KiB
C
/*
|
|
* Copyright (c) 2014, 2015, 2024 Jonas 'Sortie' Termansen.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* ubsan/ubsan.c
|
|
* Undefined behavior sanitizer runtime support.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <scram.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef __is_sortix_libk
|
|
#include <libk.h>
|
|
#endif
|
|
|
|
struct ubsan_source_location
|
|
{
|
|
const char* filename;
|
|
uint32_t line;
|
|
uint32_t column;
|
|
};
|
|
|
|
struct ubsan_type_descriptor
|
|
{
|
|
uint16_t type_kind;
|
|
uint16_t type_info;
|
|
char type_name[];
|
|
};
|
|
|
|
typedef uintptr_t ubsan_value_handle_t;
|
|
|
|
static const struct ubsan_source_location unknown_location =
|
|
{
|
|
"<unknown file>",
|
|
0,
|
|
0,
|
|
};
|
|
|
|
__attribute__((noreturn))
|
|
static void ubsan_abort(const struct ubsan_source_location* location,
|
|
const char* violation)
|
|
{
|
|
if ( !location || !location->filename )
|
|
location = &unknown_location;
|
|
#ifdef __is_sortix_libk
|
|
libk_ubsan_abort(violation, location->filename, location->line,
|
|
location->column);
|
|
#else
|
|
struct scram_undefined_behavior info;
|
|
info.filename = location->filename;
|
|
info.line = location->line;
|
|
info.column = location->column;
|
|
info.violation = violation;
|
|
scram(SCRAM_UNDEFINED_BEHAVIOR, &info);
|
|
#endif
|
|
}
|
|
|
|
#define ABORT_VARIANT(name, params, call) \
|
|
__attribute__((noreturn)) \
|
|
void __ubsan_handle_##name##_abort params \
|
|
{ \
|
|
__ubsan_handle_##name call; \
|
|
__builtin_unreachable(); \
|
|
}
|
|
|
|
#define ABORT_VARIANT_VP(name) \
|
|
ABORT_VARIANT(name, (void* a), (a))
|
|
#define ABORT_VARIANT_VP_VP(name) \
|
|
ABORT_VARIANT(name, (void* a, void* b), (a, b))
|
|
#define ABORT_VARIANT_VP_IP(name) \
|
|
ABORT_VARIANT(name, (void* a, intptr_t b), (a, b))
|
|
#define ABORT_VARIANT_VP_VP_VP(name) \
|
|
ABORT_VARIANT(name, (void* a, void* b, void* c), (a, b, c))
|
|
#define ABORT_VARIANT_VP_VP_UP(name) \
|
|
ABORT_VARIANT(name, (void* a, void* b, uintptr_t c), (a, b, c))
|
|
#define ABORT_VARIANT_VP_VP_VP_VP(name) \
|
|
ABORT_VARIANT(name, (void* a, void* b, void* c, void* d), (a, b, c, d))
|
|
#define ABORT_VARIANT_VP_VP_UP_VP(name) \
|
|
ABORT_VARIANT(name, (void* a, void* b, uintptr_t c, void* d), (a, b, c, d))
|
|
|
|
// TODO: After releasing Sortix 1.1, remove this compatibility for gcc 5.2.0,
|
|
// as __ubsan_handle_type_mismatch_v1 fixes the ABI.
|
|
#if 1
|
|
struct ubsan_type_mismatch_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
uintptr_t alignment;
|
|
unsigned char type_check_kind;
|
|
};
|
|
|
|
void __ubsan_handle_type_mismatch(void* data_raw,
|
|
void* pointer_raw)
|
|
{
|
|
struct ubsan_type_mismatch_data* data =
|
|
(struct ubsan_type_mismatch_data*) data_raw;
|
|
ubsan_value_handle_t pointer = (ubsan_value_handle_t) pointer_raw;
|
|
const char* violation = "type mismatch";
|
|
if ( !pointer )
|
|
violation = "null pointer access";
|
|
else if ( data->alignment && (pointer & (data->alignment - 1)) )
|
|
violation = "unaligned access";
|
|
ubsan_abort(&data->location, violation);
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(type_mismatch);
|
|
#endif
|
|
|
|
struct ubsan_type_mismatch_v1_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
unsigned char log_alignment;
|
|
unsigned char type_check_kind;
|
|
};
|
|
|
|
void __ubsan_handle_type_mismatch_v1(void* data_raw,
|
|
void* pointer_raw)
|
|
{
|
|
struct ubsan_type_mismatch_v1_data* data =
|
|
(struct ubsan_type_mismatch_v1_data*) data_raw;
|
|
ubsan_value_handle_t pointer = (ubsan_value_handle_t) pointer_raw;
|
|
uintptr_t alignment = (uintptr_t) 1UL << data->log_alignment;
|
|
const char* violation = "type mismatch";
|
|
if ( !pointer )
|
|
violation = "null pointer access";
|
|
else if ( alignment && (pointer & (alignment - 1)) )
|
|
violation = "unaligned access";
|
|
ubsan_abort(&data->location, violation);
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(type_mismatch_v1);
|
|
|
|
struct ubsan_alignment_assumption_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_source_location assumption_location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_alignment_assumption(void* data_raw,
|
|
void* pointer_raw,
|
|
void* alignment_raw,
|
|
void* offset_raw)
|
|
{
|
|
struct ubsan_alignment_assumption_data* data =
|
|
(struct ubsan_alignment_assumption_data*) data_raw;
|
|
ubsan_value_handle_t pointer = (ubsan_value_handle_t) pointer_raw;
|
|
ubsan_value_handle_t alignment = (ubsan_value_handle_t) alignment_raw;
|
|
ubsan_value_handle_t offset = (ubsan_value_handle_t) offset_raw;
|
|
(void) pointer;
|
|
(void) alignment;
|
|
(void) offset;
|
|
const char* violation = "alignment assumption failed";
|
|
ubsan_abort(&data->location, violation);
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP_VP(alignment_assumption);
|
|
|
|
struct ubsan_overflow_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_add_overflow(void* data_raw,
|
|
void* lhs_raw,
|
|
void* rhs_raw)
|
|
{
|
|
struct ubsan_overflow_data* data = (struct ubsan_overflow_data*) data_raw;
|
|
ubsan_value_handle_t lhs = (ubsan_value_handle_t) lhs_raw;
|
|
ubsan_value_handle_t rhs = (ubsan_value_handle_t) rhs_raw;
|
|
(void) lhs;
|
|
(void) rhs;
|
|
ubsan_abort(&data->location, "addition overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(add_overflow);
|
|
|
|
void __ubsan_handle_sub_overflow(void* data_raw,
|
|
void* lhs_raw,
|
|
void* rhs_raw)
|
|
{
|
|
struct ubsan_overflow_data* data = (struct ubsan_overflow_data*) data_raw;
|
|
ubsan_value_handle_t lhs = (ubsan_value_handle_t) lhs_raw;
|
|
ubsan_value_handle_t rhs = (ubsan_value_handle_t) rhs_raw;
|
|
(void) lhs;
|
|
(void) rhs;
|
|
ubsan_abort(&data->location, "subtraction overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(sub_overflow);
|
|
|
|
void __ubsan_handle_mul_overflow(void* data_raw,
|
|
void* lhs_raw,
|
|
void* rhs_raw)
|
|
{
|
|
struct ubsan_overflow_data* data = (struct ubsan_overflow_data*) data_raw;
|
|
ubsan_value_handle_t lhs = (ubsan_value_handle_t) lhs_raw;
|
|
ubsan_value_handle_t rhs = (ubsan_value_handle_t) rhs_raw;
|
|
(void) lhs;
|
|
(void) rhs;
|
|
ubsan_abort(&data->location, "multiplication overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(mul_overflow);
|
|
|
|
void __ubsan_handle_negate_overflow(void* data_raw,
|
|
void* old_value_raw)
|
|
{
|
|
struct ubsan_overflow_data* data = (struct ubsan_overflow_data*) data_raw;
|
|
ubsan_value_handle_t old_value = (ubsan_value_handle_t) old_value_raw;
|
|
(void) old_value;
|
|
ubsan_abort(&data->location, "negation overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(negate_overflow);
|
|
|
|
void __ubsan_handle_divrem_overflow(void* data_raw,
|
|
void* lhs_raw,
|
|
void* rhs_raw)
|
|
{
|
|
struct ubsan_overflow_data* data = (struct ubsan_overflow_data*) data_raw;
|
|
ubsan_value_handle_t lhs = (ubsan_value_handle_t) lhs_raw;
|
|
ubsan_value_handle_t rhs = (ubsan_value_handle_t) rhs_raw;
|
|
(void) lhs;
|
|
(void) rhs;
|
|
ubsan_abort(&data->location, "division remainder overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(divrem_overflow);
|
|
|
|
struct ubsan_shift_out_of_bounds_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* lhs_type;
|
|
struct ubsan_type_descriptor* rhs_type;
|
|
};
|
|
|
|
void __ubsan_handle_shift_out_of_bounds(void* data_raw,
|
|
void* lhs_raw,
|
|
void* rhs_raw)
|
|
{
|
|
struct ubsan_shift_out_of_bounds_data* data =
|
|
(struct ubsan_shift_out_of_bounds_data*) data_raw;
|
|
ubsan_value_handle_t lhs = (ubsan_value_handle_t) lhs_raw;
|
|
ubsan_value_handle_t rhs = (ubsan_value_handle_t) rhs_raw;
|
|
(void) lhs;
|
|
(void) rhs;
|
|
ubsan_abort(&data->location, "shift out of bounds");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(shift_out_of_bounds);
|
|
|
|
struct ubsan_out_of_bounds_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* array_type;
|
|
struct ubsan_type_descriptor* index_type;
|
|
};
|
|
|
|
void __ubsan_handle_out_of_bounds(void* data_raw,
|
|
void* index_raw)
|
|
{
|
|
struct ubsan_out_of_bounds_data* data =
|
|
(struct ubsan_out_of_bounds_data*) data_raw;
|
|
ubsan_value_handle_t index = (ubsan_value_handle_t) index_raw;
|
|
(void) index;
|
|
ubsan_abort(&data->location, "out of bounds");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(out_of_bounds);
|
|
|
|
struct ubsan_unreachable_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
};
|
|
|
|
__attribute__((noreturn))
|
|
void __ubsan_handle_builtin_unreachable(void* data_raw)
|
|
{
|
|
struct ubsan_unreachable_data* data =
|
|
(struct ubsan_unreachable_data*) data_raw;
|
|
ubsan_abort(&data->location, "reached unreachable");
|
|
}
|
|
|
|
__attribute__((noreturn))
|
|
void __ubsan_handle_missing_return(void* data_raw)
|
|
{
|
|
struct ubsan_unreachable_data* data =
|
|
(struct ubsan_unreachable_data*) data_raw;
|
|
ubsan_abort(&data->location, "missing return");
|
|
}
|
|
|
|
struct ubsan_vla_bound_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_vla_bound_not_positive(void* data_raw,
|
|
void* bound_raw)
|
|
{
|
|
struct ubsan_vla_bound_data* data = (struct ubsan_vla_bound_data*) data_raw;
|
|
ubsan_value_handle_t bound = (ubsan_value_handle_t) bound_raw;
|
|
(void) bound;
|
|
ubsan_abort(&data->location, "negative variable array length");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(vla_bound_not_positive);
|
|
|
|
struct ubsan_float_cast_overflow_data
|
|
{
|
|
// TODO: Remove this GCC 5.x compatibility after releasing Sortix 1.1. The
|
|
// GCC developers accidentally forgot the source location. Their
|
|
// libubsan probes to see if it looks like a path, but we don't need
|
|
// to maintain compatibility with multiple gcc releases. See below.
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
struct ubsan_source_location location;
|
|
#endif
|
|
struct ubsan_type_descriptor* from_type;
|
|
struct ubsan_type_descriptor* to_type;
|
|
};
|
|
|
|
void __ubsan_handle_float_cast_overflow(void* data_raw,
|
|
void* from_raw)
|
|
{
|
|
struct ubsan_float_cast_overflow_data* data =
|
|
(struct ubsan_float_cast_overflow_data*) data_raw;
|
|
ubsan_value_handle_t from = (ubsan_value_handle_t) from_raw;
|
|
(void) from;
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
ubsan_abort(&data->location, "float cast overflow");
|
|
#else
|
|
ubsan_abort(((void) data, &unknown_location), "float cast overflow");
|
|
#endif
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(float_cast_overflow);
|
|
|
|
struct ubsan_invalid_value_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_load_invalid_value(void* data_raw,
|
|
void* value_raw)
|
|
{
|
|
struct ubsan_invalid_value_data* data =
|
|
(struct ubsan_invalid_value_data*) data_raw;
|
|
ubsan_value_handle_t value = (ubsan_value_handle_t) value_raw;
|
|
(void) value;
|
|
ubsan_abort(&data->location, "invalid value load");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(load_invalid_value);
|
|
|
|
struct ubsan_implicit_conversion_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
struct ubsan_type_descriptor* from_type;
|
|
struct ubsan_type_descriptor* to_type;
|
|
unsigned char kind;
|
|
};
|
|
|
|
void __ubsan_handle_implicit_conversion(void* data_raw,
|
|
void* src_raw,
|
|
void* dst_raw)
|
|
{
|
|
struct ubsan_implicit_conversion_data* data =
|
|
(struct ubsan_implicit_conversion_data*) data_raw;
|
|
ubsan_value_handle_t src = (ubsan_value_handle_t) src_raw;
|
|
ubsan_value_handle_t dst = (ubsan_value_handle_t) dst_raw;
|
|
(void) src;
|
|
(void) dst;
|
|
ubsan_abort(&data->location, "implicit conversion");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(implicit_conversion);
|
|
|
|
struct ubsan_invalid_builtin_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
unsigned char kind;
|
|
};
|
|
|
|
void __ubsan_handle_invalid_builtin(void* data_raw)
|
|
{
|
|
struct ubsan_invalid_builtin_data* data =
|
|
(struct ubsan_invalid_builtin_data*) data_raw;
|
|
ubsan_abort(&data->location, "invalid builtin");
|
|
}
|
|
|
|
ABORT_VARIANT_VP(invalid_builtin);
|
|
|
|
struct ubsan_invalid_objc_cast_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* expected_type;
|
|
};
|
|
|
|
void __ubsan_handle_invalid_objc_cast(void* data_raw,
|
|
void* pointer_raw)
|
|
{
|
|
struct ubsan_invalid_builtin_data* data =
|
|
(struct ubsan_invalid_builtin_data*) data_raw;
|
|
ubsan_value_handle_t pointer = (ubsan_value_handle_t) pointer_raw;
|
|
(void) pointer;
|
|
ubsan_abort(&data->location, "invalid objc cast");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(invalid_objc_cast);
|
|
|
|
struct ubsan_function_type_mismatch_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_function_type_mismatch(void* data_raw,
|
|
void* value_raw)
|
|
{
|
|
struct ubsan_function_type_mismatch_data* data =
|
|
(struct ubsan_function_type_mismatch_data*) data_raw;
|
|
ubsan_value_handle_t value = (ubsan_value_handle_t) value_raw;
|
|
(void) value;
|
|
ubsan_abort(&data->location, "function type mismatch");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(function_type_mismatch);
|
|
|
|
// TODO: After releasing Sortix 1.1, remove this compatibility for gcc 5.2.0,
|
|
// as __ubsan_handle_nonnull_return_v1 fixes the ABI.
|
|
#if 1
|
|
struct ubsan_nonnull_return_data
|
|
{
|
|
struct ubsan_source_location attr_location;
|
|
};
|
|
|
|
void __ubsan_handle_nonnull_return(void* data_raw)
|
|
{
|
|
struct ubsan_nonnull_return_data* data =
|
|
(struct ubsan_nonnull_return_data*) data_raw;
|
|
ubsan_abort(&data->attr_location, "null return");
|
|
}
|
|
|
|
ABORT_VARIANT_VP(nonnull_return);
|
|
#endif
|
|
|
|
struct ubsan_nonnull_return_v1_data
|
|
{
|
|
struct ubsan_source_location attr_location;
|
|
};
|
|
|
|
void __ubsan_handle_nonnull_return_v1(void* data_raw,
|
|
void* location_raw)
|
|
{
|
|
struct ubsan_nonnull_return_data* data =
|
|
(struct ubsan_nonnull_return_data*) data_raw;
|
|
(void) data;
|
|
struct ubsan_source_location* location = location_raw;
|
|
ubsan_abort(location, "null return");
|
|
}
|
|
|
|
void __ubsan_handle_nullability_return_v1(void* data_raw,
|
|
void* location_raw)
|
|
{
|
|
struct ubsan_nonnull_return_data* data =
|
|
(struct ubsan_nonnull_return_data*) data_raw;
|
|
(void) data;
|
|
struct ubsan_source_location* location = location_raw;
|
|
ubsan_abort(location, "nullability return");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(nonnull_return_v1);
|
|
ABORT_VARIANT_VP_VP(nullability_return_v1);
|
|
|
|
struct ubsan_nonnull_arg_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_source_location attr_location;
|
|
// TODO: After releasing Sortix 1.1, do this unconditionally for modern gcc.
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
int arg_index;
|
|
#endif
|
|
};
|
|
|
|
// TODO: After releasing Sortix 1.1, do this unconditionally for modern gcc.
|
|
// Old GCC's libubsan does not have the second parameter, but its builtin
|
|
// somehow has it and conflict if we don't match it.
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
void __ubsan_handle_nonnull_arg(void* data_raw)
|
|
#else
|
|
void __ubsan_handle_nonnull_arg(void* data_raw,
|
|
intptr_t index_raw)
|
|
#endif
|
|
{
|
|
struct ubsan_nonnull_arg_data* data =
|
|
(struct ubsan_nonnull_arg_data*) data_raw;
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
#else
|
|
ubsan_value_handle_t index = (ubsan_value_handle_t) index_raw;
|
|
(void) index;
|
|
#endif
|
|
ubsan_abort(&data->location, "null argument");
|
|
}
|
|
|
|
void __ubsan_handle_nullability_arg(void* data_raw)
|
|
{
|
|
struct ubsan_nonnull_arg_data* data =
|
|
(struct ubsan_nonnull_arg_data*) data_raw;
|
|
ubsan_abort(&data->location, "nullability argument");
|
|
}
|
|
|
|
#if !(defined(__GNUC__) && __GNUC__< 6)
|
|
ABORT_VARIANT_VP(nonnull_arg);
|
|
#else
|
|
ABORT_VARIANT_VP_IP(nonnull_arg);
|
|
#endif
|
|
ABORT_VARIANT_VP(nullability_arg);
|
|
|
|
struct ubsan_pointer_overflow_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
};
|
|
|
|
void __ubsan_handle_pointer_overflow(void* data_raw,
|
|
void* base_raw,
|
|
void* result_raw)
|
|
{
|
|
struct ubsan_pointer_overflow_data* data =
|
|
(struct ubsan_pointer_overflow_data*) data_raw;
|
|
ubsan_value_handle_t base = (ubsan_value_handle_t) base_raw;
|
|
ubsan_value_handle_t result = (ubsan_value_handle_t) result_raw;
|
|
(void) base;
|
|
(void) result;
|
|
ubsan_abort(&data->location, "pointer overflow");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_VP(pointer_overflow);
|
|
|
|
struct ubsan_cfi_bad_icall_data
|
|
{
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_cfi_bad_icall(void* data_raw,
|
|
void* value_raw)
|
|
{
|
|
struct ubsan_cfi_bad_icall_data* data =
|
|
(struct ubsan_cfi_bad_icall_data*) data_raw;
|
|
ubsan_value_handle_t value = (ubsan_value_handle_t) value_raw;
|
|
(void) value;
|
|
ubsan_abort(&data->location,
|
|
"control flow integrity check failure during indirect call");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP(cfi_bad_icall);
|
|
|
|
struct ubsan_cfi_check_fail_data
|
|
{
|
|
unsigned char check_kind;
|
|
struct ubsan_source_location location;
|
|
struct ubsan_type_descriptor* type;
|
|
};
|
|
|
|
void __ubsan_handle_cfi_check_fail(void* data_raw,
|
|
void* function_raw,
|
|
uintptr_t vtable_is_valid)
|
|
{
|
|
struct ubsan_cfi_check_fail_data* data =
|
|
(struct ubsan_cfi_check_fail_data*) data_raw;
|
|
ubsan_value_handle_t function = (ubsan_value_handle_t) function_raw;
|
|
(void) function;
|
|
(void) vtable_is_valid;
|
|
ubsan_abort(&data->location, "control flow integrity check failure");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_UP(cfi_check_fail);
|
|
|
|
void __ubsan_handle_cfi_bad_type(void* data_raw,
|
|
void* function_raw,
|
|
uintptr_t vtable_is_valid,
|
|
void* report_options_raw)
|
|
{
|
|
struct ubsan_cfi_check_fail_data* data =
|
|
(struct ubsan_cfi_check_fail_data*) data_raw;
|
|
ubsan_value_handle_t function = (ubsan_value_handle_t) function_raw;
|
|
(void) function;
|
|
(void) vtable_is_valid;
|
|
(void) report_options_raw;
|
|
ubsan_abort(&data->location, "control flow integrity bad type");
|
|
}
|
|
|
|
ABORT_VARIANT_VP_VP_UP_VP(cfi_bad_type);
|