* win32-nat.c (psapi_module_handle): Remove static.
(get_module_name): Rename from psapi_get_dll_name. Revamp slightly to return first module found if base_address is zero. Don't initialize psapi function pointers here. Convert to cygwin paths when appropriate. (win32_pid_to_exec_file): Use Cygwin's /proc interface to determine executable name. Use get_module_name when that fails or when !__CYGWIN__. (_initialize_psapi): New function. Initialize psapi stuff before it is needed or issue a warning if it is not found. Move psapi_module_handle here.
This commit is contained in:
Christopher Faylor
parent
1aa1b15b3c
commit
33605d3962
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@ -1,3 +1,17 @@
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2008-01-01 Christopher Faylor <me+gdb@cgf.cx>
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* win32-nat.c (psapi_module_handle): Remove static.
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(get_module_name): Rename from psapi_get_dll_name. Revamp slightly to
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return first module found if base_address is zero. Don't initialize
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psapi function pointers here. Convert to cygwin paths when
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appropriate.
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(win32_pid_to_exec_file): Use Cygwin's /proc interface to determine
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executable name. Use get_module_name when that fails or when
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!__CYGWIN__.
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(_initialize_psapi): New function. Initialize psapi stuff before it is
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needed or issue a warning if it is not found. Move psapi_module_handle
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here.
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2008-01-01 Joel Brobecker <brobecker@adacore.com>
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* ada-lang.c (ada_remove_trailing_digits): New function.
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175
gdb/win32-nat.c
175
gdb/win32-nat.c
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@ -1,7 +1,7 @@
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/* Target-vector operations for controlling win32 child processes, for GDB.
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Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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2005, 2006, 2007 Free Software Foundation, Inc.
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2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions, A Red Hat Company.
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@ -457,88 +457,78 @@ win32_store_inferior_registers (struct regcache *regcache, int r)
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}
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static int psapi_loaded = 0;
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static HMODULE psapi_module_handle = NULL;
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static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL;
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static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL;
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static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL;
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static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD,
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LPDWORD);
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static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO,
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DWORD);
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static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR,
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DWORD);
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/* Get the name of a given module at at given base address. If base_address
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is zero return the first loaded module (which is always the name of the
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executable). */
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static int
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psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
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get_module_name (DWORD base_address, char *dll_name_ret)
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{
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DWORD len;
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MODULEINFO mi;
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int i;
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HMODULE dh_buf[1];
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HMODULE *DllHandle = dh_buf;
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HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */
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DWORD cbNeeded;
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BOOL ok;
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#ifdef __CYGWIN__
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char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to
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posix form */
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#else
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char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */
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#endif
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if (!psapi_loaded ||
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psapi_EnumProcessModules == NULL ||
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psapi_GetModuleInformation == NULL ||
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psapi_GetModuleFileNameExA == NULL)
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{
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if (psapi_loaded)
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goto failed;
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psapi_loaded = 1;
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psapi_module_handle = LoadLibrary ("psapi.dll");
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if (!psapi_module_handle)
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{
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/* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */
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goto failed;
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}
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psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules");
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psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
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psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
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"GetModuleFileNameExA");
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if (psapi_EnumProcessModules == NULL ||
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psapi_GetModuleInformation == NULL ||
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psapi_GetModuleFileNameExA == NULL)
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goto failed;
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}
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cbNeeded = 0;
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ok = (*psapi_EnumProcessModules) (current_process_handle,
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DllHandle,
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sizeof (HMODULE),
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&cbNeeded);
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if (!ok || !cbNeeded)
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/* If psapi_loaded < 0 either psapi.dll is not available or it does not contain
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the needed functions. */
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if (psapi_loaded <= 0)
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goto failed;
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cbNeeded = 0;
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/* Find size of buffer needed to handle list of modules loaded in inferior */
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if (!psapi_EnumProcessModules (current_process_handle, DllHandle,
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sizeof (HMODULE), &cbNeeded) || !cbNeeded)
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goto failed;
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/* Allocate correct amount of space for module list */
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DllHandle = (HMODULE *) alloca (cbNeeded);
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if (!DllHandle)
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goto failed;
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ok = (*psapi_EnumProcessModules) (current_process_handle,
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DllHandle,
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cbNeeded,
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&cbNeeded);
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if (!ok)
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/* Get the list of modules */
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if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded,
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&cbNeeded))
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goto failed;
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for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
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{
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if (!(*psapi_GetModuleInformation) (current_process_handle,
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DllHandle[i],
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&mi,
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sizeof (mi)))
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/* Get information on this module */
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if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i],
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&mi, sizeof (mi)))
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error (_("Can't get module info"));
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len = (*psapi_GetModuleFileNameExA) (current_process_handle,
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DllHandle[i],
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dll_name_ret,
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MAX_PATH);
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if (len == 0)
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error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
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if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
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return 1;
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if (!base_address || (DWORD) (mi.lpBaseOfDll) == base_address)
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{
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/* Try to find the name of the given module */
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len = psapi_GetModuleFileNameExA (current_process_handle,
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DllHandle[i], pathbuf, MAX_PATH);
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if (len == 0)
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error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
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#ifdef __CYGWIN__
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/* Cygwin prefers that the path be in /x/y/z format */
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cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret);
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#endif
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return 1; /* success */
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}
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}
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failed:
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dll_name_ret[0] = '\0';
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return 0;
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return 0; /* failure */
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}
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/* Encapsulate the information required in a call to
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@ -745,7 +735,7 @@ handle_load_dll (void *dummy)
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dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
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if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
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if (!get_module_name ((DWORD) event->lpBaseOfDll, dll_buf))
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dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
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dll_name = dll_buf;
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@ -1730,35 +1720,27 @@ win32_detach (char *args, int from_tty)
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static char *
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win32_pid_to_exec_file (int pid)
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{
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/* Try to find the process path using the Cygwin internal process list
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pid isn't a valid pid, unfortunately. Use current_event.dwProcessId
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instead. */
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static char path[MAX_PATH + 1];
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char *path_ptr = NULL;
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#ifdef __CYGWIN__
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/* TODO: Also find native Windows processes using CW_GETPINFO_FULL. */
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int cpid;
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struct external_pinfo *pinfo;
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cygwin_internal (CW_LOCK_PINFO, 1000);
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for (cpid = 0;
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(pinfo = (struct external_pinfo *)
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cygwin_internal (CW_GETPINFO, cpid | CW_NEXTPID));
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cpid = pinfo->pid)
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/* Try to find exe name as symlink target of /proc/<pid>/exe */
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int nchars;
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char procexe[sizeof ("/proc/4294967295/exe")];
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sprintf (procexe, "/proc/%lu/exe", current_event.dwProcessId);
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nchars = readlink (procexe, path, sizeof(path));
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if (nchars > 0 && nchars < sizeof (path))
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{
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if (pinfo->dwProcessId == current_event.dwProcessId) /* Got it */
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{
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cygwin_conv_to_full_posix_path (pinfo->progname, path);
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path_ptr = path;
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break;
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}
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path[nchars] = '\0'; /* Got it */
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return path;
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}
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cygwin_internal (CW_UNLOCK_PINFO);
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#endif
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return path_ptr;
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/* If we get here then either Cygwin is hosed, this isn't a Cygwin version
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of gdb, or we're trying to debug a non-Cygwin windows executable. */
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if (!get_module_name (0, path))
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path[0] = '\0';
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return path;
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}
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/* Print status information about what we're accessing. */
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@ -2282,3 +2264,34 @@ _initialize_check_for_gdb_ini (void)
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}
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}
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}
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void
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_initialize_psapi (void)
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{
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/* Load optional functions used for retrieving filename information
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associated with the currently debugged process or its dlls. */
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if (!psapi_loaded)
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{
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HMODULE psapi_module_handle;
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psapi_loaded = -1;
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psapi_module_handle = LoadLibrary ("psapi.dll");
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if (psapi_module_handle)
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{
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psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules");
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psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation");
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psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA");
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if (psapi_EnumProcessModules != NULL
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&& psapi_GetModuleInformation != NULL
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&& psapi_GetModuleFileNameExA != NULL)
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psapi_loaded = 1;
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}
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}
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/* This will probably fail on Windows 9x/Me. Let the user know that we're
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missing some functionality. */
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if (psapi_loaded < 0)
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warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly."));
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}
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|
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@ -1,7 +1,7 @@
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/* Target-vector operations for controlling win32 child processes, for GDB.
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Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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2005, 2006, 2007 Free Software Foundation, Inc.
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2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions, A Red Hat Company.
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@ -457,88 +457,78 @@ win32_store_inferior_registers (struct regcache *regcache, int r)
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}
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static int psapi_loaded = 0;
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static HMODULE psapi_module_handle = NULL;
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static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL;
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static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL;
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static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL;
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static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD,
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LPDWORD);
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static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO,
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DWORD);
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static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR,
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DWORD);
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/* Get the name of a given module at at given base address. If base_address
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is zero return the first loaded module (which is always the name of the
|
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executable). */
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static int
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psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
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get_module_name (DWORD base_address, char *dll_name_ret)
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{
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DWORD len;
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MODULEINFO mi;
|
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int i;
|
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HMODULE dh_buf[1];
|
||||
HMODULE *DllHandle = dh_buf;
|
||||
HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */
|
||||
DWORD cbNeeded;
|
||||
BOOL ok;
|
||||
#ifdef __CYGWIN__
|
||||
char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to
|
||||
posix form */
|
||||
#else
|
||||
char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */
|
||||
#endif
|
||||
|
||||
if (!psapi_loaded ||
|
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psapi_EnumProcessModules == NULL ||
|
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psapi_GetModuleInformation == NULL ||
|
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psapi_GetModuleFileNameExA == NULL)
|
||||
{
|
||||
if (psapi_loaded)
|
||||
goto failed;
|
||||
psapi_loaded = 1;
|
||||
psapi_module_handle = LoadLibrary ("psapi.dll");
|
||||
if (!psapi_module_handle)
|
||||
{
|
||||
/* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */
|
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goto failed;
|
||||
}
|
||||
psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules");
|
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psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
|
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psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
|
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"GetModuleFileNameExA");
|
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if (psapi_EnumProcessModules == NULL ||
|
||||
psapi_GetModuleInformation == NULL ||
|
||||
psapi_GetModuleFileNameExA == NULL)
|
||||
goto failed;
|
||||
}
|
||||
|
||||
cbNeeded = 0;
|
||||
ok = (*psapi_EnumProcessModules) (current_process_handle,
|
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DllHandle,
|
||||
sizeof (HMODULE),
|
||||
&cbNeeded);
|
||||
|
||||
if (!ok || !cbNeeded)
|
||||
/* If psapi_loaded < 0 either psapi.dll is not available or it does not contain
|
||||
the needed functions. */
|
||||
if (psapi_loaded <= 0)
|
||||
goto failed;
|
||||
|
||||
cbNeeded = 0;
|
||||
/* Find size of buffer needed to handle list of modules loaded in inferior */
|
||||
if (!psapi_EnumProcessModules (current_process_handle, DllHandle,
|
||||
sizeof (HMODULE), &cbNeeded) || !cbNeeded)
|
||||
goto failed;
|
||||
|
||||
/* Allocate correct amount of space for module list */
|
||||
DllHandle = (HMODULE *) alloca (cbNeeded);
|
||||
if (!DllHandle)
|
||||
goto failed;
|
||||
|
||||
ok = (*psapi_EnumProcessModules) (current_process_handle,
|
||||
DllHandle,
|
||||
cbNeeded,
|
||||
&cbNeeded);
|
||||
if (!ok)
|
||||
/* Get the list of modules */
|
||||
if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded,
|
||||
&cbNeeded))
|
||||
goto failed;
|
||||
|
||||
for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
|
||||
{
|
||||
if (!(*psapi_GetModuleInformation) (current_process_handle,
|
||||
DllHandle[i],
|
||||
&mi,
|
||||
sizeof (mi)))
|
||||
/* Get information on this module */
|
||||
if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i],
|
||||
&mi, sizeof (mi)))
|
||||
error (_("Can't get module info"));
|
||||
|
||||
len = (*psapi_GetModuleFileNameExA) (current_process_handle,
|
||||
DllHandle[i],
|
||||
dll_name_ret,
|
||||
MAX_PATH);
|
||||
if (len == 0)
|
||||
error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
|
||||
|
||||
if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
|
||||
return 1;
|
||||
if (!base_address || (DWORD) (mi.lpBaseOfDll) == base_address)
|
||||
{
|
||||
/* Try to find the name of the given module */
|
||||
len = psapi_GetModuleFileNameExA (current_process_handle,
|
||||
DllHandle[i], pathbuf, MAX_PATH);
|
||||
if (len == 0)
|
||||
error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
|
||||
#ifdef __CYGWIN__
|
||||
/* Cygwin prefers that the path be in /x/y/z format */
|
||||
cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret);
|
||||
#endif
|
||||
return 1; /* success */
|
||||
}
|
||||
}
|
||||
|
||||
failed:
|
||||
dll_name_ret[0] = '\0';
|
||||
return 0;
|
||||
return 0; /* failure */
|
||||
}
|
||||
|
||||
/* Encapsulate the information required in a call to
|
||||
|
|
@ -745,7 +735,7 @@ handle_load_dll (void *dummy)
|
|||
|
||||
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
|
||||
|
||||
if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
|
||||
if (!get_module_name ((DWORD) event->lpBaseOfDll, dll_buf))
|
||||
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
|
||||
|
||||
dll_name = dll_buf;
|
||||
|
|
@ -1730,35 +1720,27 @@ win32_detach (char *args, int from_tty)
|
|||
static char *
|
||||
win32_pid_to_exec_file (int pid)
|
||||
{
|
||||
/* Try to find the process path using the Cygwin internal process list
|
||||
pid isn't a valid pid, unfortunately. Use current_event.dwProcessId
|
||||
instead. */
|
||||
|
||||
static char path[MAX_PATH + 1];
|
||||
char *path_ptr = NULL;
|
||||
|
||||
#ifdef __CYGWIN__
|
||||
/* TODO: Also find native Windows processes using CW_GETPINFO_FULL. */
|
||||
int cpid;
|
||||
struct external_pinfo *pinfo;
|
||||
|
||||
cygwin_internal (CW_LOCK_PINFO, 1000);
|
||||
for (cpid = 0;
|
||||
(pinfo = (struct external_pinfo *)
|
||||
cygwin_internal (CW_GETPINFO, cpid | CW_NEXTPID));
|
||||
cpid = pinfo->pid)
|
||||
/* Try to find exe name as symlink target of /proc/<pid>/exe */
|
||||
int nchars;
|
||||
char procexe[sizeof ("/proc/4294967295/exe")];
|
||||
sprintf (procexe, "/proc/%lu/exe", current_event.dwProcessId);
|
||||
nchars = readlink (procexe, path, sizeof(path));
|
||||
if (nchars > 0 && nchars < sizeof (path))
|
||||
{
|
||||
if (pinfo->dwProcessId == current_event.dwProcessId) /* Got it */
|
||||
{
|
||||
cygwin_conv_to_full_posix_path (pinfo->progname, path);
|
||||
path_ptr = path;
|
||||
break;
|
||||
}
|
||||
path[nchars] = '\0'; /* Got it */
|
||||
return path;
|
||||
}
|
||||
cygwin_internal (CW_UNLOCK_PINFO);
|
||||
#endif
|
||||
|
||||
return path_ptr;
|
||||
/* If we get here then either Cygwin is hosed, this isn't a Cygwin version
|
||||
of gdb, or we're trying to debug a non-Cygwin windows executable. */
|
||||
if (!get_module_name (0, path))
|
||||
path[0] = '\0';
|
||||
|
||||
return path;
|
||||
}
|
||||
|
||||
/* Print status information about what we're accessing. */
|
||||
|
|
@ -2282,3 +2264,34 @@ _initialize_check_for_gdb_ini (void)
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
_initialize_psapi (void)
|
||||
{
|
||||
/* Load optional functions used for retrieving filename information
|
||||
associated with the currently debugged process or its dlls. */
|
||||
if (!psapi_loaded)
|
||||
{
|
||||
HMODULE psapi_module_handle;
|
||||
|
||||
psapi_loaded = -1;
|
||||
|
||||
psapi_module_handle = LoadLibrary ("psapi.dll");
|
||||
if (psapi_module_handle)
|
||||
{
|
||||
psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules");
|
||||
psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation");
|
||||
psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA");
|
||||
|
||||
if (psapi_EnumProcessModules != NULL
|
||||
&& psapi_GetModuleInformation != NULL
|
||||
&& psapi_GetModuleFileNameExA != NULL)
|
||||
psapi_loaded = 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* This will probably fail on Windows 9x/Me. Let the user know that we're
|
||||
missing some functionality. */
|
||||
if (psapi_loaded < 0)
|
||||
warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly."));
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue