Mercurial > hg > truffle
annotate agent/src/os/win32/libInfo.cpp @ 2977:f01de7799e05
Updated hgignore.
| author | Thomas Wuerthinger <thomas@wuerthinger.net> |
|---|---|
| date | Wed, 15 Jun 2011 17:54:31 +0200 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // Disable too-long symbol warnings | |
| 26 #pragma warning ( disable : 4786 ) | |
| 27 | |
| 28 #include "libInfo.hpp" | |
| 29 #include "nt4internals.hpp" | |
| 30 #include "isNT4.hpp" | |
| 31 #include "toolHelp.hpp" | |
| 32 #include <assert.h> | |
| 33 | |
| 34 using namespace std; | |
| 35 | |
| 36 typedef void LibInfoImplFunc(DWORD pid, vector<LibInfo>& info); | |
| 37 | |
| 38 static void libInfoImplNT4(DWORD pid, vector<LibInfo>& info); | |
| 39 static void libInfoImplToolHelp(DWORD pid, vector<LibInfo>& info); | |
| 40 | |
| 41 void | |
| 42 libInfo(DWORD pid, vector<LibInfo>& info) { | |
| 43 static LibInfoImplFunc* impl = NULL; | |
| 44 | |
| 45 if (impl == NULL) { | |
| 46 // See which operating system we're on | |
| 47 impl = (isNT4() ? &libInfoImplNT4 : &libInfoImplToolHelp); | |
| 48 } | |
| 49 | |
| 50 assert(impl != NULL); | |
| 51 | |
| 52 (*impl)(pid, info); | |
| 53 } | |
| 54 | |
| 55 static ULONG | |
| 56 ModuleCount(NT4::PDEBUG_BUFFER db) { | |
| 57 return db->ModuleInformation ? *PULONG(db->ModuleInformation) : 0; | |
| 58 } | |
| 59 | |
| 60 #define MAX2(a, b) (((a) < (b)) ? (b) : (a)) | |
| 61 | |
| 62 static void | |
| 63 libInfoImplNT4(DWORD pid, vector<LibInfo>& info) { | |
| 64 static EnumProcessModulesFunc* enumFunc = NULL; | |
| 65 static GetModuleFileNameExFunc* fnFunc = NULL; | |
| 66 static GetModuleInformationFunc* infoFunc = NULL; | |
| 67 | |
| 68 if (enumFunc == NULL) { | |
| 69 HMODULE dll = loadPSAPIDLL(); | |
| 70 | |
| 71 enumFunc = (EnumProcessModulesFunc*) GetProcAddress(dll, "EnumProcessModules"); | |
| 72 fnFunc = (GetModuleFileNameExFunc*) GetProcAddress(dll, "GetModuleFileNameExA"); | |
| 73 infoFunc = (GetModuleInformationFunc*) GetProcAddress(dll, "GetModuleInformation"); | |
| 74 | |
| 75 assert(enumFunc != NULL); | |
| 76 assert(fnFunc != NULL); | |
| 77 assert(infoFunc != NULL); | |
| 78 } | |
| 79 | |
| 80 static HMODULE* mods = new HMODULE[256]; | |
| 81 static int numMods = 256; | |
| 82 | |
| 83 if (mods == NULL) { | |
| 84 mods = new HMODULE[numMods]; | |
| 85 if (mods == NULL) { | |
| 86 return; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 bool done = false; | |
| 91 | |
| 92 HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid); | |
| 93 if (proc == NULL) { | |
| 94 return; | |
| 95 } | |
| 96 | |
| 97 do { | |
| 98 DWORD bufSize = numMods * sizeof(HMODULE); | |
| 99 DWORD neededSize; | |
| 100 | |
| 101 if (!(*enumFunc)(proc, mods, bufSize, &neededSize)) { | |
| 102 // Enum failed | |
| 103 CloseHandle(proc); | |
| 104 return; | |
| 105 } | |
| 106 | |
| 107 int numFetched = neededSize / sizeof(HMODULE); | |
| 108 | |
| 109 if (numMods < numFetched) { | |
| 110 // Grow buffer | |
| 111 numMods = MAX2(numFetched, 2 * numMods); | |
| 112 delete[] mods; | |
| 113 mods = new HMODULE[numMods]; | |
| 114 if (mods == NULL) { | |
| 115 CloseHandle(proc); | |
| 116 return; | |
| 117 } | |
| 118 } else { | |
| 119 char filename[MAX_PATH]; | |
| 120 MODULEINFO modInfo; | |
| 121 | |
| 122 // Iterate through and fetch each one's info | |
| 123 for (int i = 0; i < numFetched; i++) { | |
| 124 if (!(*fnFunc)(proc, mods[i], filename, MAX_PATH)) { | |
| 125 CloseHandle(proc); | |
| 126 return; | |
| 127 } | |
| 128 | |
| 129 if (!(*infoFunc)(proc, mods[i], &modInfo, sizeof(MODULEINFO))) { | |
| 130 CloseHandle(proc); | |
| 131 return; | |
| 132 } | |
| 133 | |
| 134 info.push_back(LibInfo(string(filename), (void*) modInfo.lpBaseOfDll)); | |
| 135 } | |
| 136 | |
| 137 done = true; | |
| 138 } | |
| 139 } while (!done); | |
| 140 | |
| 141 CloseHandle(proc); | |
| 142 return; | |
| 143 } | |
| 144 | |
| 145 void | |
| 146 libInfoImplToolHelp(DWORD pid, vector<LibInfo>& info) { | |
| 147 using namespace ToolHelp; | |
| 148 | |
| 149 static CreateToolhelp32SnapshotFunc* snapshotFunc = NULL; | |
| 150 static Module32FirstFunc* firstFunc = NULL; | |
| 151 static Module32NextFunc* nextFunc = NULL; | |
| 152 | |
| 153 if (snapshotFunc == NULL) { | |
| 154 HMODULE dll = loadDLL(); | |
| 155 | |
| 156 snapshotFunc = | |
| 157 (CreateToolhelp32SnapshotFunc*) GetProcAddress(dll, | |
| 158 "CreateToolhelp32Snapshot"); | |
| 159 | |
| 160 firstFunc = (Module32FirstFunc*) GetProcAddress(dll, | |
| 161 "Module32First"); | |
| 162 | |
| 163 nextFunc = (Module32NextFunc*) GetProcAddress(dll, | |
| 164 "Module32Next"); | |
| 165 | |
| 166 assert(snapshotFunc != NULL); | |
| 167 assert(firstFunc != NULL); | |
| 168 assert(nextFunc != NULL); | |
| 169 } | |
| 170 | |
| 171 HANDLE snapshot = (*snapshotFunc)(TH32CS_SNAPMODULE, pid); | |
| 172 if (snapshot == (HANDLE) -1) { | |
| 173 // Error occurred during snapshot | |
| 174 return; | |
| 175 } | |
| 176 | |
| 177 // Iterate | |
| 178 MODULEENTRY32 module; | |
| 179 if ((*firstFunc)(snapshot, &module)) { | |
| 180 do { | |
| 181 info.push_back(LibInfo(string(module.szExePath), (void*) module.modBaseAddr)); | |
| 182 } while ((*nextFunc)(snapshot, &module)); | |
| 183 } | |
| 184 | |
| 185 CloseHandle(snapshot); | |
| 186 } |