15070187546

Committed 16 May 2025 01:57PM UTC coverage: 88.896% (+0.009%) from 88.887%

Build # 15070187546

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web-flow

Commit Message

Refactor source location interface (#170)

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93.77

/lib/runtime/TypeResolution.cpp

// TypeART library
//
// Copyright (c) 2017-2025 TypeART Authors
// Distributed under the BSD 3-Clause license.
// (See accompanying file LICENSE.txt or copy at
// https://opensource.org/licenses/BSD-3-Clause)
//
// Project home: https://github.com/tudasc/TypeART
//
// SPDX-License-Identifier: BSD-3-Clause
//

#include "TypeResolution.h"

#include "AllocationTracking.h"
#include "Runtime.h"
#include "RuntimeData.h"
#include "RuntimeInterface.h"
#include "TypeInterface.h"
#include "support/Logger.h"
#include "support/System.h"

#include "llvm/Support/raw_ostream.h"

#include <cassert>
#include <charconv>
#include <cstddef>
#include <cstdint>
#include <utility>
#include <vector>

namespace typeart {

namespace detail {

template <typename P, typename T>
inline const void* add_byte_offset(const P* addr, T offset) {
  assert(addr != nullptr);
  return static_cast<const P*>(static_cast<const char*>(addr) + offset);
}

template <typename T>
inline std::ptrdiff_t substract_pointer(const T* addr_a, const T* addr_b) {
  assert(addr_a != nullptr);
  assert(addr_b != nullptr);
  return static_cast<const char*>(addr_a) - static_cast<const char*>(addr_b);
}

inline size_t get_member_index_at(const typeart_struct_layout& structInfo, size_t offset) {
  const size_t num_members = structInfo.num_members;

  if (num_members == 0) {
    return 0;
  }

  const auto* struct_offsets = structInfo.offsets;

  if (offset > struct_offsets[num_members - 1]) {
    return num_members - 1;
  }

  size_t member_index{0};
  while (member_index < (num_members - 1) && offset >= struct_offsets[member_index + 1]) {
    ++member_index;
  }
  return member_index;
}

}  // namespace detail

TypeResolution::TypeResolution(const TypeDB& type_db, Recorder& recorder)
    : type_database{type_db}, runtime_recorder{recorder} {
}

TypeResolution::TypeArtStatus TypeResolution::getSubTypeInfo(const void* baseAddr, size_t offset,
                                                             const typeart_struct_layout& containerInfo, int* subType,
                                                             const void** subTypeBaseAddr, size_t* subTypeOffset,
                                                             size_t* subTypeCount) const {
  if (containerInfo.type_id < 0) {
    return TYPEART_ERROR;
  }

  if (offset >= containerInfo.extent) {
    return TYPEART_BAD_OFFSET;
  }

  // Get index of the struct member at the address
  const size_t memberIndex = detail::get_member_index_at(containerInfo, offset);
  const int memberType     = containerInfo.member_types[memberIndex];
  const size_t baseOffset  = containerInfo.offsets[memberIndex];

  const size_t internalOffset = offset - baseOffset;
  const size_t typeSize       = type_database.getTypeSize(memberType);
  if (typeSize == 0) {
    return TYPEART_INVALID_ID;
  }
  const size_t offsetInTypeSize = internalOffset / typeSize;
  const size_t newOffset        = internalOffset % typeSize;

  // If newOffset != 0, the subtype cannot be atomic, i.e. must be a struct
  if (newOffset != 0) {
    if (type_database.isReservedType(memberType)) {
      return TYPEART_BAD_ALIGNMENT;
    }
  }

  // Ensure that the array index is in bounds
  if (offsetInTypeSize >= containerInfo.count[memberIndex]) {
    // Address points to padding
    return TYPEART_BAD_ALIGNMENT;
  }

  *subType         = memberType;
  *subTypeBaseAddr = detail::add_byte_offset(baseAddr, baseOffset);
  *subTypeOffset   = newOffset;
  *subTypeCount    = containerInfo.count[memberIndex] - offsetInTypeSize;

  return TYPEART_OK;
}

TypeResolution::TypeArtStatus TypeResolution::getTypeInfoInternal(const void* baseAddr, size_t offset,
                                                                  const StructTypeInfo& containerInfo, int* type,
                                                                  size_t* count) const {
  assert(offset < containerInfo.extent && "Something went wrong with the base address computation");

  int subType{-1};
  const void* subTypeBaseAddr;
  size_t subTypeOffset{0};
  size_t subTypeCount{0};

  const StructTypeInfo* structInfo = &containerInfo;

  const auto to_struct_layout_info = [](const auto& struct_type_info) {
    typeart_struct_layout struct_layout;
    struct_layout.type_id      = struct_type_info.type_id;
    struct_layout.name         = struct_type_info.name.c_str();
    struct_layout.num_members  = struct_type_info.num_members;
    struct_layout.extent       = struct_type_info.extent;
    struct_layout.offsets      = &struct_type_info.offsets[0];
    struct_layout.member_types = &struct_type_info.member_types[0];
    struct_layout.count        = &struct_type_info.array_sizes[0];
    return struct_layout;
  };

  // Resolve type recursively, until the address matches exactly
  bool resolve{true};
  while (resolve) {
    const auto status_subtype_info = getSubTypeInfo(baseAddr, offset, to_struct_layout_info(*structInfo), &subType,
                                                    &subTypeBaseAddr, &subTypeOffset, &subTypeCount);

    if (status_subtype_info != TYPEART_OK) {
      return status_subtype_info;
    }

    baseAddr = subTypeBaseAddr;
    offset   = subTypeOffset;

    // Continue as long as there is a byte offset
    resolve = offset != 0;

    // Get layout of the nested struct
    if (resolve) {
      const auto status_struct_info = getStructInfo(subType, &structInfo);
      if (status_struct_info != TYPEART_OK) {
        return status_struct_info;
      }
    }
  }
  *type  = subType;
  *count = subTypeCount;
  return TYPEART_OK;
}

TypeResolution::TypeArtStatus TypeResolution::getTypeInfo(const void* addr, const void* basePtr,
                                                          const PointerInfo& ptrInfo, int* type, size_t* count) const {
  const int containing_type = ptrInfo.typeId;
  size_t containing_type_count{0};
  size_t internal_byte_offset{0};

  // First, retrieve the containing type
  TypeArtStatus status = getContainingTypeInfo(addr, basePtr, ptrInfo, &containing_type_count, &internal_byte_offset);
  if (status != TYPEART_OK) {
    if (status == TYPEART_UNKNOWN_ADDRESS) {
      runtime_recorder.incAddrMissing(addr);
    }
    return status;
  }

  // Check for exact address match
  if (internal_byte_offset == 0) {
    *type  = containing_type;
    *count = containing_type_count;
    return TYPEART_OK;
  }

  if (type_database.isBuiltinType(containing_type)) {
    // Address points to the middle of a builtin type
    return TYPEART_BAD_ALIGNMENT;
  }

  // Resolve struct recursively
  const auto* structInfo = type_database.getStructInfo(containing_type);
  if (structInfo != nullptr) {
    const void* containingTypeAddr = detail::add_byte_offset(addr, -std::ptrdiff_t(internal_byte_offset));
    return getTypeInfoInternal(containingTypeAddr, internal_byte_offset, *structInfo, type, count);
  }

  return TYPEART_INVALID_ID;
}

TypeResolution::TypeArtStatus TypeResolution::getContainingTypeInfo(const void* addr, const void* basePtr,
                                                                    const PointerInfo& ptrInfo, size_t* count,
                                                                    size_t* offset) const {
  const auto& basePtrInfo = ptrInfo;
  size_t typeSize         = type_database.getTypeSize(basePtrInfo.typeId);
  if (basePtrInfo.typeId == TYPEART_VOID || basePtrInfo.typeId == TYPEART_POINTER) {
    // typeSize = 1;
  }

  // Check for exact match -> no further checks and offsets calculations needed
  if (basePtr == addr) {
    *count  = ptrInfo.count;
    *offset = 0;
    return TYPEART_OK;
  }

  if (typeSize == 0) {
    return TYPEART_ERROR;
  }

  // The address points inside a known array
  const void* blockEnd = detail::add_byte_offset(basePtr, basePtrInfo.count * typeSize);

  // Ensure that the given address is in bounds and points to the start of an element
  if (addr >= blockEnd) {
    const std::ptrdiff_t byte_offset_to_base = detail::substract_pointer(addr, basePtr);

    const auto elements  = byte_offset_to_base / typeSize;
    const auto oob_index = elements - basePtrInfo.count + 1;
    LOG_WARNING("Out of bounds for the lookup: (" << debug::toString(addr, basePtrInfo)
                                                  << ") #Elements too far: " << oob_index);
    return TYPEART_UNKNOWN_ADDRESS;
  }

  assert(addr >= basePtr && "Error in base address computation");

  const std::ptrdiff_t addrDif = detail::substract_pointer(addr, basePtr);

  // Offset of the pointer w.r.t. the start of the containing type
  const size_t internalOffset = addrDif % typeSize;

  // Array index
  const size_t typeOffset = addrDif / typeSize;
  const size_t typeCount  = basePtrInfo.count - typeOffset;

  // Retrieve and return type information
  *count  = typeCount;
  *offset = internalOffset;
  return TYPEART_OK;
}

TypeResolution::TypeArtStatus TypeResolution::getStructInfo(int type_id, const StructTypeInfo** structInfo) const {
  // Requested ID must correspond to a struct
  if (!type_database.isStructType(type_id)) {
    return TYPEART_WRONG_KIND;
  }

  const auto* result = type_database.getStructInfo(type_id);

  if (result != nullptr) {
    *structInfo = result;
    return TYPEART_OK;
  }
  return TYPEART_INVALID_ID;
}

const TypeDB& TypeResolution::db() const {
  return type_database;
}

namespace detail {
// inline typeart_status query_type(const void* addr, int* type, size_t* count) {
//   auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);
//   typeart::RuntimeSystem::get().recorder.incUsedInRequest(addr);
//   if (alloc) {
//     return typeart::RuntimeSystem::get().typeResolution.getTypeInfo(addr, alloc->first, alloc->second, type, count);
//   }
//   return TYPEART_UNKNOWN_ADDRESS;
// }

inline typeart_status query_type(const void* addr, typeart_type_info& info) {
  auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);
  typeart::RuntimeSystem::get().recorder.incUsedInRequest(addr);
  if (alloc) {
    typeart_base_type_info base;
    base.address        = alloc->first;
    base.type_id        = alloc->second.typeId;
    base.count          = alloc->second.count;
    info.base_type_info = base;
    info.address        = addr;

    typeart::RuntimeSystem::get().recorder.incTypeQuery(base.type_id);

    const auto result = typeart::RuntimeSystem::get().typeResolution.getTypeInfo(addr, alloc->first, alloc->second,
                                                                                 &info.type_id, &info.count);
    return result;
  }
  return TYPEART_UNKNOWN_ADDRESS;
}

inline typeart_status query_struct_layout(int type_id, typeart_struct_layout* struct_layout) {
  const typeart::StructTypeInfo* struct_info;
  typeart_status status = typeart::RuntimeSystem::get().typeResolution.getStructInfo(type_id, &struct_info);
  if (status == TYPEART_OK) {
    struct_layout->type_id      = struct_info->type_id;
    struct_layout->name         = struct_info->name.c_str();
    struct_layout->num_members  = struct_info->num_members;
    struct_layout->extent       = struct_info->extent;
    struct_layout->offsets      = (struct_info->offsets).data();
    struct_layout->member_types = (struct_info->member_types).data();
    struct_layout->count        = (struct_info->array_sizes).data();
  } else {
    struct_layout->type_id      = std::numeric_limits<decltype(typeart_struct_layout::type_id)>::min();
    struct_layout->name         = "";
    struct_layout->num_members  = 0;
    struct_layout->extent       = 0;
    struct_layout->offsets      = nullptr;
    struct_layout->member_types = nullptr;
    struct_layout->count        = nullptr;
  }
  return status;
}

char* string2char(std::string_view src) {
  // const void* ret_addr       = __builtin_return_address(0);
  const size_t source_length = src.size() + 1;  // +1 for '\0'
  char* string_copy          = (char*)malloc(sizeof(char) * source_length);

  if (string_copy == nullptr) {
    return nullptr;
  }

  // typeart::RuntimeSystem::get().allocTracker.onAlloc(string_copy, TYPEART_CHAR_8, source_length, ret_addr);

  memcpy(string_copy, src.data(), source_length);

  return string_copy;
}

}  // namespace detail
}  // namespace typeart

/**
 * Runtime interface implementation
 *
 */

typeart_status typeart_get_type(const void* addr, typeart_type_info* base_type) {
  typeart::RTGuard guard;
  return typeart::detail::query_type(addr, *base_type);
}

typeart_status typeart_get_containing_type(typeart_type_info type, typeart_base_type_info* containing_type,
                                           size_t* byte_offset) {
  typeart::RTGuard guard;
  containing_type->type_id = type.base_type_info.type_id;
  containing_type->count   = type.base_type_info.count;
  containing_type->address = type.base_type_info.address;
  const typeart::PointerInfo info{type.base_type_info.type_id, type.base_type_info.count};
  const auto result = typeart::RuntimeSystem::get().typeResolution.getContainingTypeInfo(
      type.address, containing_type->address, info, &containing_type->count, byte_offset);

  return result;
}

typeart_status typeart_get_subtype(const typeart_struct_layout* container_layout, const void* base_addr, size_t offset,
                                   typeart_base_type_info* subtype_info, size_t* subtype_byte_offset) {
  typeart::RTGuard guard;
  auto status = typeart::RuntimeSystem::get().typeResolution.getSubTypeInfo(
      base_addr, offset, *container_layout, &subtype_info->type_id, &subtype_info->address, subtype_byte_offset,
      &subtype_info->count);
  return status;
}

typeart_status typeart_resolve_type_id(int type_id, typeart_struct_layout* struct_layout) {
  typeart::RTGuard guard;
  return typeart::detail::query_struct_layout(type_id, struct_layout);
}

typeart_status typeart_get_return_address(const void* addr, const void** return_addr) {
  typeart::RTGuard guard;
  auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);

  if (alloc) {
    *return_addr = alloc.value().second.debug;
    return TYPEART_OK;
  }
  *return_addr = nullptr;
  return TYPEART_UNKNOWN_ADDRESS;
}

// typeart_status_t typeart_get_source_location(const void* addr, char** file, char** function, char** line) {
//   using namespace typeart::detail;
//   typeart::RTGuard guard;

//   auto source_loc = typeart::SourceLocation::create(addr);

//   if (source_loc) {
//     *file     = string2char(source_loc->file);
//     *function = string2char(source_loc->function);
//     *line     = string2char(source_loc->line);

//     if (*file == nullptr || *function == nullptr || *line == nullptr) {
//       return TYPEART_ERROR;
//     }

//     return TYPEART_OK;
//   }

//   return TYPEART_UNKNOWN_ADDRESS;
// }

typeart_status_t typeart_get_source_location(const void* addr, typeart_source_location* source_location) {
  using namespace typeart::detail;
  typeart::RTGuard guard;

  auto source_loc = typeart::SourceLocation::create(addr);

  if (source_loc) {
    source_location->file     = string2char(source_loc->file);
    source_location->function = string2char(source_loc->function);
    source_location->line     = 0;
    const auto& line          = source_loc->line;
    auto [ptr, ec]            = std::from_chars(line.data(), line.data() + line.size(), source_location->line);

    if (source_location->file == nullptr || source_location->function == nullptr || ec != std::errc{}) {
      return TYPEART_ERROR;
    }

    return TYPEART_OK;
  }

  return TYPEART_UNKNOWN_ADDRESS;
}

typeart_status_t typeart_free_source_location(typeart_source_location* source_location) {
  using namespace typeart::detail;
  typeart::RTGuard guard;

  if (source_location == nullptr) {
    return TYPEART_ERROR;
  }

  free(source_location->file);
  free(source_location->function);

  source_location->file     = nullptr;
  source_location->function = nullptr;
  source_location->line     = 0;

  return TYPEART_OK;
}

const char* typeart_get_type_name(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().getTypeName(type_id).c_str();
}

bool typeart_is_vector_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isVectorType(type_id);
}

bool typeart_is_valid_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isValid(type_id);
}

bool typeart_is_reserved_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isReservedType(type_id);
}

bool typeart_is_builtin_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isBuiltinType(type_id);
}

bool typeart_is_struct_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isStructType(type_id);
}

bool typeart_is_userdefined_type(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isUserDefinedType(type_id);
}

bool typeart_is_union(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().isUnion(type_id);
}

size_t typeart_get_type_size(int type_id) {
  typeart::RTGuard guard;
  return typeart::RuntimeSystem::get().typeResolution.db().getTypeSize(type_id);
}

1	// TypeART library
2	//
3	// Copyright (c) 2017-2025 TypeART Authors
4	// Distributed under the BSD 3-Clause license.
5	// (See accompanying file LICENSE.txt or copy at
6	// https://opensource.org/licenses/BSD-3-Clause)
7	//
8	// Project home: https://github.com/tudasc/TypeART
9	//
10	// SPDX-License-Identifier: BSD-3-Clause
11	//
12
13	#include "TypeResolution.h"
14
15	#include "AllocationTracking.h"
16	#include "Runtime.h"
17	#include "RuntimeData.h"
18	#include "RuntimeInterface.h"
19	#include "TypeInterface.h"
20	#include "support/Logger.h"
21	#include "support/System.h"
22
23	#include "llvm/Support/raw_ostream.h"
24
25	#include <cassert>
26	#include <charconv>
27	#include <cstddef>
28	#include <cstdint>
29	#include <utility>
30	#include <vector>
31
32	namespace typeart {
33
34	namespace detail {
35
36	template <typename P, typename T>
37	inline const void* add_byte_offset(const P* addr, T offset) {	2,173✔
38	assert(addr != nullptr);	2,173✔
39	return static_cast<const P>(static_cast<const char>(addr) + offset);	2,173✔
40	}
41
42	template <typename T>
43	inline std::ptrdiff_t substract_pointer(const T* addr_a, const T* addr_b) {	1,585✔
44	assert(addr_a != nullptr);	1,585✔
45	assert(addr_b != nullptr);	1,585✔
46	return static_cast<const char>(addr_a) - static_cast<const char>(addr_b);	1,585✔
47	}
48
49	inline size_t get_member_index_at(const typeart_struct_layout& structInfo, size_t offset) {	348✔
50	const size_t num_members = structInfo.num_members;	348✔
51
52	if (num_members == 0) {	348✔
53	return 0;	×
54	}
55
56	const auto* struct_offsets = structInfo.offsets;	348✔
57
58	if (offset > struct_offsets[num_members - 1]) {	348✔
59	return num_members - 1;	15✔
60	}
61
62	size_t member_index{0};	333✔
63	while (member_index < (num_members - 1) && offset >= struct_offsets[member_index + 1]) {	720✔
64	++member_index;	387✔
65	}
66	return member_index;	333✔
67	}	348✔
68
69	} // namespace detail
70
71	TypeResolution::TypeResolution(const TypeDB& type_db, Recorder& recorder)	778✔
72	: type_database{type_db}, runtime_recorder{recorder} {	778✔
73	}	778✔
74		412✔
75	TypeResolution::TypeArtStatus TypeResolution::getSubTypeInfo(const void* baseAddr, size_t offset,	372✔
76	const typeart_struct_layout& containerInfo, int* subType,
77	const void** subTypeBaseAddr, size_t* subTypeOffset,
78	size_t* subTypeCount) const {
79	if (containerInfo.type_id < 0) {	372✔
80	return TYPEART_ERROR;	12✔
81	}
82
83	if (offset >= containerInfo.extent) {	360✔
84	return TYPEART_BAD_OFFSET;	12✔
85	}
86
87	// Get index of the struct member at the address
88	const size_t memberIndex = detail::get_member_index_at(containerInfo, offset);	348✔
89	const int memberType = containerInfo.member_types[memberIndex];	348✔
90	const size_t baseOffset = containerInfo.offsets[memberIndex];	348✔
91
92	const size_t internalOffset = offset - baseOffset;	348✔
93	const size_t typeSize = type_database.getTypeSize(memberType);	348✔
94	if (typeSize == 0) {	348✔
95	return TYPEART_INVALID_ID;	×
96	}
97	const size_t offsetInTypeSize = internalOffset / typeSize;	348✔
98	const size_t newOffset = internalOffset % typeSize;	348✔
99
100	// If newOffset != 0, the subtype cannot be atomic, i.e. must be a struct
101	if (newOffset != 0) {	348✔
102	if (type_database.isReservedType(memberType)) {	24✔
103	return TYPEART_BAD_ALIGNMENT;	24✔
104	}
105	}	×
106
107	// Ensure that the array index is in bounds
108	if (offsetInTypeSize >= containerInfo.count[memberIndex]) {	324✔
109	// Address points to padding
110	return TYPEART_BAD_ALIGNMENT;	60✔
111	}
112
113	*subType = memberType;	264✔
114	*subTypeBaseAddr = detail::add_byte_offset(baseAddr, baseOffset);	264✔
115	*subTypeOffset = newOffset;	264✔
116	*subTypeCount = containerInfo.count[memberIndex] - offsetInTypeSize;	264✔
117
118	return TYPEART_OK;	264✔
119	}	372✔
120
121	TypeResolution::TypeArtStatus TypeResolution::getTypeInfoInternal(const void* baseAddr, size_t offset,	324✔
122	const StructTypeInfo& containerInfo, int* type,
123	size_t* count) const {
124	assert(offset < containerInfo.extent && "Something went wrong with the base address computation");	648✔
125
126	int subType{-1};	324✔
127	const void* subTypeBaseAddr;	324✔
128	size_t subTypeOffset{0};	324✔
129	size_t subTypeCount{0};	324✔
130
131	const StructTypeInfo* structInfo = &containerInfo;	324✔
132
133	const auto to_struct_layout_info = [](const auto& struct_type_info) {	648✔
134	typeart_struct_layout struct_layout;	324✔
135	struct_layout.type_id = struct_type_info.type_id;	324✔
136	struct_layout.name = struct_type_info.name.c_str();	324✔
137	struct_layout.num_members = struct_type_info.num_members;	324✔
138	struct_layout.extent = struct_type_info.extent;	324✔
139	struct_layout.offsets = &struct_type_info.offsets[0];	324✔
140	struct_layout.member_types = &struct_type_info.member_types[0];	324✔
141	struct_layout.count = &struct_type_info.array_sizes[0];	324✔
142	return struct_layout;	324✔
143	};	324✔
144
145	// Resolve type recursively, until the address matches exactly
146	bool resolve{true};	324✔
147	while (resolve) {	576✔
148	const auto status_subtype_info = getSubTypeInfo(baseAddr, offset, to_struct_layout_info(*structInfo), &subType,	324✔
149	&subTypeBaseAddr, &subTypeOffset, &subTypeCount);
150
151	if (status_subtype_info != TYPEART_OK) {	324✔
152	return status_subtype_info;	72✔
153	}
154
155	baseAddr = subTypeBaseAddr;	252✔
156	offset = subTypeOffset;	252✔
157
158	// Continue as long as there is a byte offset
159	resolve = offset != 0;	252✔
160
161	// Get layout of the nested struct
162	if (resolve) {	252✔
163	const auto status_struct_info = getStructInfo(subType, &structInfo);	×
164	if (status_struct_info != TYPEART_OK) {	×
165	return status_struct_info;	×
166	}
167	}	×
168	}	324✔
169	*type = subType;	252✔
170	*count = subTypeCount;	252✔
171	return TYPEART_OK;	252✔
172	}	324✔
173
174	TypeResolution::TypeArtStatus TypeResolution::getTypeInfo(const void* addr, const void* basePtr,	7,543✔
175	const PointerInfo& ptrInfo, int* type, size_t* count) const {
176	const int containing_type = ptrInfo.typeId;	7,543✔
177	size_t containing_type_count{0};	7,543✔
178	size_t internal_byte_offset{0};	7,543✔
179
180	// First, retrieve the containing type
181	TypeArtStatus status = getContainingTypeInfo(addr, basePtr, ptrInfo, &containing_type_count, &internal_byte_offset);	7,543✔
182	if (status != TYPEART_OK) {	7,543✔
183	if (status == TYPEART_UNKNOWN_ADDRESS) {	583✔
184	runtime_recorder.incAddrMissing(addr);	583✔
185	}	583✔
186	return status;	583✔
187	}
188
189	// Check for exact address match
190	if (internal_byte_offset == 0) {	6,960✔
191	*type = containing_type;	6,396✔
192	*count = containing_type_count;	6,396✔
193	return TYPEART_OK;	6,396✔
194	}
195
196	if (type_database.isBuiltinType(containing_type)) {	564✔
197	// Address points to the middle of a builtin type
198	return TYPEART_BAD_ALIGNMENT;	240✔
199	}
200
201	// Resolve struct recursively
202	const auto* structInfo = type_database.getStructInfo(containing_type);	324✔
203	if (structInfo != nullptr) {	324✔
204	const void* containingTypeAddr = detail::add_byte_offset(addr, -std::ptrdiff_t(internal_byte_offset));	324✔
205	return getTypeInfoInternal(containingTypeAddr, internal_byte_offset, *structInfo, type, count);	324✔
206	}	324✔
207
208	return TYPEART_INVALID_ID;	×
209	}	7,543✔
210
211	TypeResolution::TypeArtStatus TypeResolution::getContainingTypeInfo(const void* addr, const void* basePtr,	7,600✔
212	const PointerInfo& ptrInfo, size_t* count,
213	size_t* offset) const {
214	const auto& basePtrInfo = ptrInfo;	7,600✔
215	size_t typeSize = type_database.getTypeSize(basePtrInfo.typeId);	7,600✔
216	if (basePtrInfo.typeId == TYPEART_VOID \|\| basePtrInfo.typeId == TYPEART_POINTER) {	7,600✔
217	// typeSize = 1;
218	}	110✔
219
220	// Check for exact match -> no further checks and offsets calculations needed
221	if (basePtr == addr) {	7,598✔
222	*count = ptrInfo.count;	6,013✔
223	*offset = 0;	6,013✔
224	return TYPEART_OK;	6,013✔
225	}
226
227	if (typeSize == 0) {	1,585✔
228	return TYPEART_ERROR;	×
229	}
230
231	// The address points inside a known array
232	const void* blockEnd = detail::add_byte_offset(basePtr, basePtrInfo.count * typeSize);	1,585✔
233
234	// Ensure that the given address is in bounds and points to the start of an element
235	if (addr >= blockEnd) {	1,585✔
236	const std::ptrdiff_t byte_offset_to_base = detail::substract_pointer(addr, basePtr);	583✔
237
238	const auto elements = byte_offset_to_base / typeSize;	583✔
239	const auto oob_index = elements - basePtrInfo.count + 1;	583✔
240	LOG_WARNING("Out of bounds for the lookup: (" << debug::toString(addr, basePtrInfo)	583✔
241	<< ") #Elements too far: " << oob_index);
242	return TYPEART_UNKNOWN_ADDRESS;	583✔
243	}	583✔
244
245	assert(addr >= basePtr && "Error in base address computation");	2,004✔
246
247	const std::ptrdiff_t addrDif = detail::substract_pointer(addr, basePtr);	1,002✔
248
249	// Offset of the pointer w.r.t. the start of the containing type
250	const size_t internalOffset = addrDif % typeSize;	1,002✔
251
252	// Array index
253	const size_t typeOffset = addrDif / typeSize;	1,002✔
254	const size_t typeCount = basePtrInfo.count - typeOffset;	1,002✔
255
256	// Retrieve and return type information
257	*count = typeCount;	1,002✔
258	*offset = internalOffset;	1,002✔
259	return TYPEART_OK;	1,002✔
260	}	7,598✔
261
262	TypeResolution::TypeArtStatus TypeResolution::getStructInfo(int type_id, const StructTypeInfo** structInfo) const {	276✔
263	// Requested ID must correspond to a struct
264	if (!type_database.isStructType(type_id)) {	276✔
265	return TYPEART_WRONG_KIND;	×
266	}
267
268	const auto* result = type_database.getStructInfo(type_id);	276✔
269
270	if (result != nullptr) {	276✔
271	*structInfo = result;	252✔
272	return TYPEART_OK;	252✔
273	}
274	return TYPEART_INVALID_ID;	24✔
275	}	276✔
276
277	const TypeDB& TypeResolution::db() const {	883,490✔
278	return type_database;	883,490✔
279	}
280
281	namespace detail {
282	// inline typeart_status query_type(const void* addr, int* type, size_t* count) {
283	// auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);
284	// typeart::RuntimeSystem::get().recorder.incUsedInRequest(addr);
285	// if (alloc) {
286	// return typeart::RuntimeSystem::get().typeResolution.getTypeInfo(addr, alloc->first, alloc->second, type, count);
287	// }
288	// return TYPEART_UNKNOWN_ADDRESS;
289	// }
290
291	inline typeart_status query_type(const void* addr, typeart_type_info& info) {	7,690✔
292	auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);	7,690✔
293	typeart::RuntimeSystem::get().recorder.incUsedInRequest(addr);	7,690✔
294	if (alloc) {	7,690✔
295	typeart_base_type_info base;	7,545✔
296	base.address = alloc->first;	7,545✔
297	base.type_id = alloc->second.typeId;	7,545✔
298	base.count = alloc->second.count;	7,545✔
299	info.base_type_info = base;	7,545✔
300	info.address = addr;	7,545✔
301
302	typeart::RuntimeSystem::get().recorder.incTypeQuery(base.type_id);	7,545✔
303
304	const auto result = typeart::RuntimeSystem::get().typeResolution.getTypeInfo(addr, alloc->first, alloc->second,	7,545✔
305	&info.type_id, &info.count);	7,545✔
306	return result;	7,545✔
307	}	7,545✔
308	return TYPEART_UNKNOWN_ADDRESS;	145✔
309	}	7,690✔
310
311	inline typeart_status query_struct_layout(int type_id, typeart_struct_layout* struct_layout) {	276✔
312	const typeart::StructTypeInfo* struct_info;	276✔
313	typeart_status status = typeart::RuntimeSystem::get().typeResolution.getStructInfo(type_id, &struct_info);	276✔
314	if (status == TYPEART_OK) {	276✔
315	struct_layout->type_id = struct_info->type_id;	252✔
316	struct_layout->name = struct_info->name.c_str();	252✔
317	struct_layout->num_members = struct_info->num_members;	252✔
318	struct_layout->extent = struct_info->extent;	252✔
319	struct_layout->offsets = (struct_info->offsets).data();	252✔
320	struct_layout->member_types = (struct_info->member_types).data();	252✔
321	struct_layout->count = (struct_info->array_sizes).data();	252✔
322	} else {	252✔
323	struct_layout->type_id = std::numeric_limits<decltype(typeart_struct_layout::type_id)>::min();	24✔
324	struct_layout->name = "";	24✔
325	struct_layout->num_members = 0;	24✔
326	struct_layout->extent = 0;	24✔
327	struct_layout->offsets = nullptr;	24✔
328	struct_layout->member_types = nullptr;	24✔
329	struct_layout->count = nullptr;	24✔
330	}
331	return status;	276✔
332	}	276✔
333
334	char* string2char(std::string_view src) {	24✔
335	// const void* ret_addr = __builtin_return_address(0);
336	const size_t source_length = src.size() + 1; // +1 for '\0'	24✔
337	char* string_copy = (char)malloc(sizeof(char) source_length);	24✔
338
339	if (string_copy == nullptr) {	24✔
340	return nullptr;	×
341	}
342
343	// typeart::RuntimeSystem::get().allocTracker.onAlloc(string_copy, TYPEART_CHAR_8, source_length, ret_addr);
344
345	memcpy(string_copy, src.data(), source_length);	24✔
346
347	return string_copy;	24✔
348	}	24✔
349
350	} // namespace detail
351	} // namespace typeart
352
353	/**
354	* Runtime interface implementation
355	*
356	*/
357
358	typeart_status typeart_get_type(const void* addr, typeart_type_info* base_type) {	7,690✔
359	typeart::RTGuard guard;	7,690✔
360	return typeart::detail::query_type(addr, *base_type);	7,690✔
361	}	7,690✔
362
363	typeart_status typeart_get_containing_type(typeart_type_info type, typeart_base_type_info* containing_type,	54✔
364	size_t* byte_offset) {
365	typeart::RTGuard guard;	54✔
366	containing_type->type_id = type.base_type_info.type_id;	54✔
367	containing_type->count = type.base_type_info.count;	54✔
368	containing_type->address = type.base_type_info.address;	54✔
369	const typeart::PointerInfo info{type.base_type_info.type_id, type.base_type_info.count};	54✔
370	const auto result = typeart::RuntimeSystem::get().typeResolution.getContainingTypeInfo(	60✔
371	type.address, containing_type->address, info, &containing_type->count, byte_offset);	30✔
372
373	return result;	30✔
374	}	30✔
375
376	typeart_status typeart_get_subtype(const typeart_struct_layout* container_layout, const void* base_addr, size_t offset,	48✔
377	typeart_base_type_info* subtype_info, size_t* subtype_byte_offset) {
378	typeart::RTGuard guard;	48✔
379	auto status = typeart::RuntimeSystem::get().typeResolution.getSubTypeInfo(	96✔
380	base_addr, offset, *container_layout, &subtype_info->type_id, &subtype_info->address, subtype_byte_offset,	48✔
381	&subtype_info->count);	48✔
382	return status;	48✔
383	}	48✔
384
385	typeart_status typeart_resolve_type_id(int type_id, typeart_struct_layout* struct_layout) {	276✔
386	typeart::RTGuard guard;	276✔
387	return typeart::detail::query_struct_layout(type_id, struct_layout);	276✔
388	}	276✔
389
390	typeart_status typeart_get_return_address(const void* addr, const void** return_addr) {	24✔
391	typeart::RTGuard guard;	24✔
392	auto alloc = typeart::RuntimeSystem::get().allocTracker.findBaseAlloc(addr);	24✔
393
394	if (alloc) {	24✔
395	*return_addr = alloc.value().second.debug;	12✔
396	return TYPEART_OK;	12✔
397	}
398	*return_addr = nullptr;	12✔
399	return TYPEART_UNKNOWN_ADDRESS;	12✔
400	}	24✔
401
402	// typeart_status_t typeart_get_source_location(const void* addr, char file, char function, char** line) {
403	// using namespace typeart::detail;
404	// typeart::RTGuard guard;
405
406	// auto source_loc = typeart::SourceLocation::create(addr);
407
408	// if (source_loc) {
409	// *file = string2char(source_loc->file);
410	// *function = string2char(source_loc->function);
411	// *line = string2char(source_loc->line);
412
413	// if (file == nullptr \|\| function == nullptr \|\| *line == nullptr) {
414	// return TYPEART_ERROR;
415	// }
416
417	// return TYPEART_OK;
418	// }
419
420	// return TYPEART_UNKNOWN_ADDRESS;
421	// }
422
423	typeart_status_t typeart_get_source_location(const void* addr, typeart_source_location* source_location) {	12✔
424	using namespace typeart::detail;
425	typeart::RTGuard guard;	12✔
426
427	auto source_loc = typeart::SourceLocation::create(addr);	12✔
428
429	if (source_loc) {	12✔
430	source_location->file = string2char(source_loc->file);	12✔
431	source_location->function = string2char(source_loc->function);	12✔
432	source_location->line = 0;	12✔
433	const auto& line = source_loc->line;	12✔
434	auto [ptr, ec] = std::from_chars(line.data(), line.data() + line.size(), source_location->line);	24✔
435
436	if (source_location->file == nullptr \|\| source_location->function == nullptr \|\| ec != std::errc{}) {	12✔
437	return TYPEART_ERROR;	×
438	}
439
440	return TYPEART_OK;	12✔
441	}	12✔
442
443	return TYPEART_UNKNOWN_ADDRESS;	×
444	}	12✔
445
446	typeart_status_t typeart_free_source_location(typeart_source_location* source_location) {	12✔
447	using namespace typeart::detail;
448	typeart::RTGuard guard;	12✔
449
450	if (source_location == nullptr) {	12✔
NEW 451	return TYPEART_ERROR;	×
452	}
453
454	free(source_location->file);	12✔
455	free(source_location->function);	12✔
456
457	source_location->file = nullptr;	12✔
458	source_location->function = nullptr;	12✔
459	source_location->line = 0;	12✔
460
461	return TYPEART_OK;	12✔
462	}	12✔
463
464	const char* typeart_get_type_name(int type_id) {	6,095✔
465	typeart::RTGuard guard;	6,095✔
466	return typeart::RuntimeSystem::get().typeResolution.db().getTypeName(type_id).c_str();	6,095✔
467	}	6,095✔
468
469	bool typeart_is_vector_type(int type_id) {	24✔
470	typeart::RTGuard guard;	24✔
471	return typeart::RuntimeSystem::get().typeResolution.db().isVectorType(type_id);	24✔
472	}	24✔
473
474	bool typeart_is_valid_type(int type_id) {	24✔
475	typeart::RTGuard guard;	24✔
476	return typeart::RuntimeSystem::get().typeResolution.db().isValid(type_id);	24✔
477	}	24✔
478
479	bool typeart_is_reserved_type(int type_id) {	24✔
480	typeart::RTGuard guard;	24✔
481	return typeart::RuntimeSystem::get().typeResolution.db().isReservedType(type_id);	24✔
482	}	24✔
483
484	bool typeart_is_builtin_type(int type_id) {	24✔
485	typeart::RTGuard guard;	24✔
486	return typeart::RuntimeSystem::get().typeResolution.db().isBuiltinType(type_id);	24✔
487	}	24✔
488
489	bool typeart_is_struct_type(int type_id) {	24✔
490	typeart::RTGuard guard;	24✔
491	return typeart::RuntimeSystem::get().typeResolution.db().isStructType(type_id);	24✔
492	}	24✔
493
494	bool typeart_is_userdefined_type(int type_id) {	24✔
495	typeart::RTGuard guard;	24✔
496	return typeart::RuntimeSystem::get().typeResolution.db().isUserDefinedType(type_id);	24✔
497	}	24✔
498
499	bool typeart_is_union(int type_id) {	×
500	typeart::RTGuard guard;	×
501	return typeart::RuntimeSystem::get().typeResolution.db().isUnion(type_id);	×
502	}	×
503
504	size_t typeart_get_type_size(int type_id) {	24✔
505	typeart::RTGuard guard;	24✔
506	return typeart::RuntimeSystem::get().typeResolution.db().getTypeSize(type_id);	24✔
507	}	24✔

tudasc / TypeART / 15070187546

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