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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_LINUX) | 6 #if defined(HOST_OS_LINUX) |
7 | 7 |
8 #include "platform/memory_sanitizer.h" | 8 #include "platform/memory_sanitizer.h" |
9 #include "vm/native_symbol.h" | 9 #include "vm/native_symbol.h" |
10 | 10 |
11 #include <cxxabi.h> // NOLINT | 11 #include <cxxabi.h> // NOLINT |
12 #include <dlfcn.h> // NOLINT | 12 #include <dlfcn.h> // NOLINT |
13 | 13 |
14 namespace dart { | 14 namespace dart { |
15 | 15 |
16 void NativeSymbolResolver::InitOnce() {} | 16 void NativeSymbolResolver::InitOnce() {} |
17 | 17 |
18 | |
19 void NativeSymbolResolver::ShutdownOnce() {} | 18 void NativeSymbolResolver::ShutdownOnce() {} |
20 | 19 |
21 | |
22 char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* start) { | 20 char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* start) { |
23 Dl_info info; | 21 Dl_info info; |
24 int r = dladdr(reinterpret_cast<void*>(pc), &info); | 22 int r = dladdr(reinterpret_cast<void*>(pc), &info); |
25 if (r == 0) { | 23 if (r == 0) { |
26 return NULL; | 24 return NULL; |
27 } | 25 } |
28 if (info.dli_sname == NULL) { | 26 if (info.dli_sname == NULL) { |
29 return NULL; | 27 return NULL; |
30 } | 28 } |
31 if (start != NULL) { | 29 if (start != NULL) { |
32 *start = reinterpret_cast<uintptr_t>(info.dli_saddr); | 30 *start = reinterpret_cast<uintptr_t>(info.dli_saddr); |
33 } | 31 } |
34 int status = 0; | 32 int status = 0; |
35 size_t len = 0; | 33 size_t len = 0; |
36 char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, &len, &status); | 34 char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, &len, &status); |
37 MSAN_UNPOISON(demangled, len); | 35 MSAN_UNPOISON(demangled, len); |
38 if (status == 0) { | 36 if (status == 0) { |
39 return demangled; | 37 return demangled; |
40 } | 38 } |
41 return strdup(info.dli_sname); | 39 return strdup(info.dli_sname); |
42 } | 40 } |
43 | 41 |
44 | |
45 void NativeSymbolResolver::FreeSymbolName(char* name) { | 42 void NativeSymbolResolver::FreeSymbolName(char* name) { |
46 free(name); | 43 free(name); |
47 } | 44 } |
48 | 45 |
49 | |
50 bool NativeSymbolResolver::LookupSharedObject(uword pc, | 46 bool NativeSymbolResolver::LookupSharedObject(uword pc, |
51 uword* dso_base, | 47 uword* dso_base, |
52 char** dso_name) { | 48 char** dso_name) { |
53 Dl_info info; | 49 Dl_info info; |
54 int r = dladdr(reinterpret_cast<void*>(pc), &info); | 50 int r = dladdr(reinterpret_cast<void*>(pc), &info); |
55 if (r == 0) { | 51 if (r == 0) { |
56 return false; | 52 return false; |
57 } | 53 } |
58 *dso_base = reinterpret_cast<uword>(info.dli_fbase); | 54 *dso_base = reinterpret_cast<uword>(info.dli_fbase); |
59 *dso_name = strdup(info.dli_fname); | 55 *dso_name = strdup(info.dli_fname); |
60 return true; | 56 return true; |
61 } | 57 } |
62 | 58 |
63 } // namespace dart | 59 } // namespace dart |
64 | 60 |
65 #endif // defined(HOST_OS_LINUX) | 61 #endif // defined(HOST_OS_LINUX) |
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