2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali/public-api/common/dali-common.h>
26 #define BACKTRACE_ENABLED
28 #if defined(BACKTRACE_ENABLED)
29 #if defined(__GLIBC__)
37 #include <dali/integration-api/debug.h>
41 #if defined(BACKTRACE_ENABLED)
45 const int32_t MAX_NUM_STACK_FRAMES = 25;
48 std::string Demangle(const char* symbol)
52 // backtrace ::= <filename>'('['_'<mangled-symbol>'_']['+'<offset>]')'
53 // Only want <mangled-symbol>:
54 const char* openParen = strchr(symbol, '(');
57 const char* startOfToken = openParen + 1;
58 const char* plus = strchr(startOfToken, '+');
59 const char* closeParen = strchr(startOfToken, ')');
60 const char* endOfToken = NULL;
65 else if(closeParen != NULL)
67 endOfToken = closeParen;
69 if(endOfToken != NULL)
71 size_t tokenLength = endOfToken - startOfToken;
73 // Allocate space for symbol
74 char* mangledSymbol = reinterpret_cast<char*>(malloc(tokenLength + 1u));
75 if(mangledSymbol != NULL)
77 strncpy(mangledSymbol, startOfToken, tokenLength);
78 mangledSymbol[tokenLength] = '\0';
82 char* demangled = NULL;
83 demangled = abi::__cxa_demangle(mangledSymbol, NULL, &size, &status);
87 free(demangled); // demangle() allocates returned string, so free it
101 DALI_CORE_API DaliException::DaliException(const char* location, const char* condition)
102 : location(location),
105 // Note, if a memory error has occured, then the backtrace won't work - backtrace_symbols relies on
106 // allocating memory.
108 // Initial dlog error message is output in DALI_ASSERT_ALWAYS macro
109 // Also output on stderr
110 #if defined(DEBUG_ENABLED)
111 fprintf(stderr, "Exception: \n%s\n thrown at %s\nSee dlog for backtrace\n", condition, location);
113 fprintf(stderr, "Exception: \n%s\n thrown\nSee dlog for backtrace\n", condition);
116 DALI_LOG_ERROR_NOFN("Backtrace:\n");
118 void* frameArray[MAX_NUM_STACK_FRAMES];
119 int32_t nSize = backtrace(frameArray, MAX_NUM_STACK_FRAMES);
120 char** symbols = backtrace_symbols(frameArray, nSize);
121 for(int32_t i = 1; i < nSize; i++)
123 std::string demangled_symbol = Demangle(symbols[i]);
124 DALI_LOG_ERROR_NOFN("[%02d] %s\n", i, demangled_symbol.c_str());
129 #else // BACKTRACE_ENABLED
131 DALI_CORE_API DaliException::DaliException(const char* location, const char* condition)
132 : location(location),
135 #if defined(DEBUG_ENABLED)
136 printf("Exception: \n%s\n thrown at %s\n", condition, location);
138 printf("Exception: \n%s\n thrown\n", condition);
142 #endif // BACKTRACE_ENABLED
144 DALI_CORE_API void DaliAssertMessage(const char* location, const char* condition)
146 #if defined(DEBUG_ENABLED)
147 DALI_LOG_ERROR_NOFN("Assert (%s) failed in: %s\n", condition, location);
149 DALI_LOG_ERROR_NOFN("Assert (%s) failed\n", condition);