+
+/* Define dummy functions which always return error for the rare cases where
+ these functions could not be found. */
+static BOOL WINAPI
+bad_DebugActiveProcessStop (DWORD w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_DebugBreakProcess (HANDLE w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_DebugSetProcessKillOnExit (BOOL w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z)
+{
+ return FALSE;
+}
+static DWORD WINAPI
+bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z)
+{
+ return 0;
+}
+static BOOL WINAPI
+bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z)
+{
+ return FALSE;
+}
+
+static BOOL WINAPI
+bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y)
+{
+ return FALSE;
+}
+
+/* Load any functions which may not be available in ancient versions
+ of Windows. */
+void
+_initialize_loadable (void)
+{
+ HMODULE hm = NULL;
+
+ hm = LoadLibrary ("kernel32.dll");
+ if (hm)
+ {
+ dyn_DebugActiveProcessStop = (void *)
+ GetProcAddress (hm, "DebugActiveProcessStop");
+ dyn_DebugBreakProcess = (void *)
+ GetProcAddress (hm, "DebugBreakProcess");
+ dyn_DebugSetProcessKillOnExit = (void *)
+ GetProcAddress (hm, "DebugSetProcessKillOnExit");
+ }
+
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in kernel32.dll. */
+ if (!dyn_DebugBreakProcess)
+ dyn_DebugBreakProcess = bad_DebugBreakProcess;
+ if (!dyn_DebugActiveProcessStop || !dyn_DebugSetProcessKillOnExit)
+ {
+ dyn_DebugActiveProcessStop = bad_DebugActiveProcessStop;
+ dyn_DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit;
+ }
+
+ /* Load optional functions used for retrieving filename information
+ associated with the currently debugged process or its dlls. */
+ hm = LoadLibrary ("psapi.dll");
+ if (hm)
+ {
+ dyn_EnumProcessModules = (void *)
+ GetProcAddress (hm, "EnumProcessModules");
+ dyn_GetModuleInformation = (void *)
+ GetProcAddress (hm, "GetModuleInformation");
+ dyn_GetModuleFileNameExA = (void *)
+ GetProcAddress (hm, "GetModuleFileNameExA");
+ }
+
+ if (!dyn_EnumProcessModules || !dyn_GetModuleInformation || !dyn_GetModuleFileNameExA)
+ {
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in psapi.dll. */
+ dyn_EnumProcessModules = bad_EnumProcessModules;
+ dyn_GetModuleInformation = bad_GetModuleInformation;
+ dyn_GetModuleFileNameExA = bad_GetModuleFileNameExA;
+ /* This will probably fail on Windows 9x/Me. Let the user know that we're
+ missing some functionality. */
+ warning(_("cannot automatically find executable file or library to read symbols.\nUse \"file\" or \"dll\" command to load executable/libraries directly."));
+ }
+
+ hm = LoadLibrary ("advapi32.dll");
+ if (hm)
+ {
+ dyn_OpenProcessToken = (void *)
+ GetProcAddress (hm, "OpenProcessToken");
+ dyn_LookupPrivilegeValueA = (void *)
+ GetProcAddress (hm, "LookupPrivilegeValueA");
+ dyn_AdjustTokenPrivileges = (void *)
+ GetProcAddress (hm, "AdjustTokenPrivileges");
+ /* Only need to set one of these since if OpenProcessToken fails nothing
+ else is needed. */
+ if (!dyn_OpenProcessToken || !dyn_LookupPrivilegeValueA || !dyn_AdjustTokenPrivileges)
+ dyn_OpenProcessToken = bad_OpenProcessToken;
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff