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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(HOST_OS_MACOS) | 6 #if defined(HOST_OS_MACOS) |
7 | 7 |
8 #include "vm/native_symbol.h" | 8 #include "vm/native_symbol.h" |
9 | 9 |
10 #include <cxxabi.h> // NOLINT | 10 #include <cxxabi.h> // NOLINT |
11 #include <dlfcn.h> // NOLINT | 11 #include <dlfcn.h> // NOLINT |
12 | 12 |
13 namespace dart { | 13 namespace dart { |
14 | 14 |
15 void NativeSymbolResolver::InitOnce() {} | 15 void NativeSymbolResolver::InitOnce() {} |
16 | 16 |
17 | |
18 void NativeSymbolResolver::ShutdownOnce() {} | 17 void NativeSymbolResolver::ShutdownOnce() {} |
19 | 18 |
20 | |
21 char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* start) { | 19 char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* start) { |
22 Dl_info info; | 20 Dl_info info; |
23 int r = dladdr(reinterpret_cast<void*>(pc), &info); | 21 int r = dladdr(reinterpret_cast<void*>(pc), &info); |
24 if (r == 0) { | 22 if (r == 0) { |
25 return NULL; | 23 return NULL; |
26 } | 24 } |
27 if (info.dli_sname == NULL) { | 25 if (info.dli_sname == NULL) { |
28 return NULL; | 26 return NULL; |
29 } | 27 } |
30 if (start != NULL) { | 28 if (start != NULL) { |
31 *start = reinterpret_cast<uintptr_t>(info.dli_saddr); | 29 *start = reinterpret_cast<uintptr_t>(info.dli_saddr); |
32 } | 30 } |
33 int status; | 31 int status; |
34 char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, NULL, &status); | 32 char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, NULL, &status); |
35 if (status == 0) { | 33 if (status == 0) { |
36 return demangled; | 34 return demangled; |
37 } | 35 } |
38 return strdup(info.dli_sname); | 36 return strdup(info.dli_sname); |
39 } | 37 } |
40 | 38 |
41 | |
42 void NativeSymbolResolver::FreeSymbolName(char* name) { | 39 void NativeSymbolResolver::FreeSymbolName(char* name) { |
43 free(name); | 40 free(name); |
44 } | 41 } |
45 | 42 |
46 | |
47 bool NativeSymbolResolver::LookupSharedObject(uword pc, | 43 bool NativeSymbolResolver::LookupSharedObject(uword pc, |
48 uword* dso_base, | 44 uword* dso_base, |
49 char** dso_name) { | 45 char** dso_name) { |
50 Dl_info info; | 46 Dl_info info; |
51 int r = dladdr(reinterpret_cast<void*>(pc), &info); | 47 int r = dladdr(reinterpret_cast<void*>(pc), &info); |
52 if (r == 0) { | 48 if (r == 0) { |
53 return false; | 49 return false; |
54 } | 50 } |
55 *dso_base = reinterpret_cast<uword>(info.dli_fbase); | 51 *dso_base = reinterpret_cast<uword>(info.dli_fbase); |
56 *dso_name = strdup(info.dli_fname); | 52 *dso_name = strdup(info.dli_fname); |
57 return true; | 53 return true; |
58 } | 54 } |
59 | 55 |
60 } // namespace dart | 56 } // namespace dart |
61 | 57 |
62 #endif // defined(HOST_OS_MACOS) | 58 #endif // defined(HOST_OS_MACOS) |
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