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Diffstat (limited to 'gdb/wince.c')
| -rw-r--r-- | gdb/wince.c | 2037 |
1 files changed, 0 insertions, 2037 deletions
diff --git a/gdb/wince.c b/gdb/wince.c deleted file mode 100644 index 0442c96104a..00000000000 --- a/gdb/wince.c +++ /dev/null @@ -1,2037 +0,0 @@ -/* Target-vector operations for controlling Windows CE child processes, for GDB. - Copyright 1999, 2000, 2001 Free Software Foundation, Inc. - Contributed by Cygnus Solutions, A Red Hat Company. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. - */ - -/* by Christopher Faylor (cgf@cygnus.com) */ - -/* We assume we're being built with and will be used for cygwin. */ - -#ifdef SHx -#undef SH4 -#define SH4 /* Just to get all of the CONTEXT defines. */ -#endif - -#include "defs.h" -#include "frame.h" /* required by inferior.h */ -#include "inferior.h" -#include "target.h" -#include "gdbcore.h" -#include "command.h" -#include <signal.h> -#include <sys/types.h> -#include <fcntl.h> -#include <stdlib.h> - -#include <windows.h> -#include <rapi.h> -#include <netdb.h> -#include <cygwin/in.h> -#include <cygwin/socket.h> - -#include "buildsym.h" -#include "symfile.h" -#include "objfiles.h" -#include "gdb_string.h" -#include "gdbthread.h" -#include "gdbcmd.h" -#include <sys/param.h> -#include "wince-stub.h" -#include <time.h> -#include "regcache.h" - -/* The ui's event loop. */ -extern int (*ui_loop_hook) (int signo); - -/* If we're not using the old Cygwin header file set, define the - following which never should have been in the generic Win32 API - headers in the first place since they were our own invention... */ -#ifndef _GNU_H_WINDOWS_H -#define FLAG_TRACE_BIT 0x100 -#ifdef CONTEXT_FLOATING_POINT -#define CONTEXT_DEBUGGER0 (CONTEXT_FULL | CONTEXT_FLOATING_POINT) -#else -#define CONTEXT_DEBUGGER0 (CONTEXT_FULL) -#endif -#endif - -#ifdef SH4 -#define CONTEXT_DEBUGGER ((CONTEXT_DEBUGGER0 & ~(CONTEXT_SH4 | CONTEXT_FLOATING_POINT)) | CONTEXT_SH3) -#else -#define CONTEXT_DEBUGGER CONTEXT_DEBUGGER0 -#endif -/* The string sent by cygwin when it processes a signal. - FIXME: This should be in a cygwin include file. */ -#define CYGWIN_SIGNAL_STRING "cygwin: signal" - -#define CHECK(x) check (x, __FILE__,__LINE__) -#define DEBUG_EXEC(x) if (debug_exec) printf x -#define DEBUG_EVENTS(x) if (debug_events) printf x -#define DEBUG_MEM(x) if (debug_memory) printf x -#define DEBUG_EXCEPT(x) if (debug_exceptions) printf x - -static int connection_initialized = 0; /* True if we've initialized a RAPI session. */ - -/* The directory where the stub and executable files are uploaded. */ -static const char *remote_directory = "\\gdb"; - -/* The types automatic upload available. */ -static enum - { - UPLOAD_ALWAYS = 0, - UPLOAD_NEWER = 1, - UPLOAD_NEVER = 2 - } -upload_when = UPLOAD_NEWER; - -/* Valid options for 'set remoteupload'. Note that options - must track upload_when enum. */ -static struct opts - { - const char *name; - int abbrev; - } -upload_options[3] = -{ - { - "always", 1 - } - , - { - "newer", 3 - } - , - { - "never", 3 - } -}; - -static char *remote_upload = NULL; /* Set by set remoteupload */ -static int remote_add_host = 0; - -/* Forward declaration */ -extern struct target_ops child_ops; - -static int win32_child_thread_alive (int); -void child_kill_inferior (void); - -static int last_sig = 0; /* Set if a signal was received from the - debugged process */ - -/* Thread information structure used to track information that is - not available in gdb's thread structure. */ -typedef struct thread_info_struct - { - struct thread_info_struct *next; - DWORD id; - HANDLE h; - char *name; - int suspend_count; - int stepped; /* True if stepped. */ - CORE_ADDR step_pc; - unsigned long step_prev; - CONTEXT context; - } -thread_info; - -static thread_info thread_head = -{NULL}; -static thread_info * thread_rec (DWORD id, int get_context); - -/* The process and thread handles for the above context. */ - -static DEBUG_EVENT current_event; /* The current debug event from - WaitForDebugEvent */ -static HANDLE current_process_handle; /* Currently executing process */ -static thread_info *current_thread; /* Info on currently selected thread */ -static thread_info *this_thread; /* Info on thread returned by wait_for_debug_event */ -static DWORD main_thread_id; /* Thread ID of the main thread */ - -/* Counts of things. */ -static int exception_count = 0; -static int event_count = 0; - -/* User options. */ -static int debug_exec = 0; /* show execution */ -static int debug_events = 0; /* show events from kernel */ -static int debug_memory = 0; /* show target memory accesses */ -static int debug_exceptions = 0; /* show target exceptions */ - -/* An array of offset mappings into a Win32 Context structure. - This is a one-to-one mapping which is indexed by gdb's register - numbers. It retrieves an offset into the context structure where - the 4 byte register is located. - An offset value of -1 indicates that Win32 does not provide this - register in it's CONTEXT structure. regptr will return zero for this - register. - - This is used by the regptr function. */ -#define context_offset(x) ((int)&(((PCONTEXT)NULL)->x)) -static const int mappings[NUM_REGS + 1] = -{ -#ifdef __i386__ - context_offset (Eax), - context_offset (Ecx), - context_offset (Edx), - context_offset (Ebx), - context_offset (Esp), - context_offset (Ebp), - context_offset (Esi), - context_offset (Edi), - context_offset (Eip), - context_offset (EFlags), - context_offset (SegCs), - context_offset (SegSs), - context_offset (SegDs), - context_offset (SegEs), - context_offset (SegFs), - context_offset (SegGs), - context_offset (FloatSave.RegisterArea[0 * 10]), - context_offset (FloatSave.RegisterArea[1 * 10]), - context_offset (FloatSave.RegisterArea[2 * 10]), - context_offset (FloatSave.RegisterArea[3 * 10]), - context_offset (FloatSave.RegisterArea[4 * 10]), - context_offset (FloatSave.RegisterArea[5 * 10]), - context_offset (FloatSave.RegisterArea[6 * 10]), - context_offset (FloatSave.RegisterArea[7 * 10]), -#elif defined(SHx) - context_offset (R0), - context_offset (R1), - context_offset (R2), - context_offset (R3), - context_offset (R4), - context_offset (R5), - context_offset (R6), - context_offset (R7), - context_offset (R8), - context_offset (R9), - context_offset (R10), - context_offset (R11), - context_offset (R12), - context_offset (R13), - context_offset (R14), - context_offset (R15), - context_offset (Fir), - context_offset (PR), /* Procedure Register */ - context_offset (GBR), /* Global Base Register */ - context_offset (MACH), /* Accumulate */ - context_offset (MACL), /* Multiply */ - context_offset (Psr), - context_offset (Fpul), - context_offset (Fpscr), - context_offset (FRegs[0]), - context_offset (FRegs[1]), - context_offset (FRegs[2]), - context_offset (FRegs[3]), - context_offset (FRegs[4]), - context_offset (FRegs[5]), - context_offset (FRegs[6]), - context_offset (FRegs[7]), - context_offset (FRegs[8]), - context_offset (FRegs[9]), - context_offset (FRegs[10]), - context_offset (FRegs[11]), - context_offset (FRegs[12]), - context_offset (FRegs[13]), - context_offset (FRegs[14]), - context_offset (FRegs[15]), - context_offset (xFRegs[0]), - context_offset (xFRegs[1]), - context_offset (xFRegs[2]), - context_offset (xFRegs[3]), - context_offset (xFRegs[4]), - context_offset (xFRegs[5]), - context_offset (xFRegs[6]), - context_offset (xFRegs[7]), - context_offset (xFRegs[8]), - context_offset (xFRegs[9]), - context_offset (xFRegs[10]), - context_offset (xFRegs[11]), - context_offset (xFRegs[12]), - context_offset (xFRegs[13]), - context_offset (xFRegs[14]), - context_offset (xFRegs[15]), -#elif defined(MIPS) - context_offset (IntZero), - context_offset (IntAt), - context_offset (IntV0), - context_offset (IntV1), - context_offset (IntA0), - context_offset (IntA1), - context_offset (IntA2), - context_offset (IntA3), - context_offset (IntT0), - context_offset (IntT1), - context_offset (IntT2), - context_offset (IntT3), - context_offset (IntT4), - context_offset (IntT5), - context_offset (IntT6), - context_offset (IntT7), - context_offset (IntS0), - context_offset (IntS1), - context_offset (IntS2), - context_offset (IntS3), - context_offset (IntS4), - context_offset (IntS5), - context_offset (IntS6), - context_offset (IntS7), - context_offset (IntT8), - context_offset (IntT9), - context_offset (IntK0), - context_offset (IntK1), - context_offset (IntGp), - context_offset (IntSp), - context_offset (IntS8), - context_offset (IntRa), - context_offset (Psr), - context_offset (IntLo), - context_offset (IntHi), - -1, /* bad */ - -1, /* cause */ - context_offset (Fir), - context_offset (FltF0), - context_offset (FltF1), - context_offset (FltF2), - context_offset (FltF3), - context_offset (FltF4), - context_offset (FltF5), - context_offset (FltF6), - context_offset (FltF7), - context_offset (FltF8), - context_offset (FltF9), - context_offset (FltF10), - context_offset (FltF11), - context_offset (FltF12), - context_offset (FltF13), - context_offset (FltF14), - context_offset (FltF15), - context_offset (FltF16), - context_offset (FltF17), - context_offset (FltF18), - context_offset (FltF19), - context_offset (FltF20), - context_offset (FltF21), - context_offset (FltF22), - context_offset (FltF23), - context_offset (FltF24), - context_offset (FltF25), - context_offset (FltF26), - context_offset (FltF27), - context_offset (FltF28), - context_offset (FltF29), - context_offset (FltF30), - context_offset (FltF31), - context_offset (Fsr), - context_offset (Fir), - -1, /* fp */ -#elif defined(ARM) - context_offset (R0), - context_offset (R1), - context_offset (R2), - context_offset (R3), - context_offset (R4), - context_offset (R5), - context_offset (R6), - context_offset (R7), - context_offset (R8), - context_offset (R9), - context_offset (R10), - context_offset (R11), - context_offset (R12), - context_offset (Sp), - context_offset (Lr), - context_offset (Pc), - -1, - -1, - -1, - -1, - -1, - -1, - -1, - -1, - -1, - context_offset (Psr), -#endif - -1 -}; - -/* Return a pointer into a CONTEXT field indexed by gdb register number. - Return a pointer to an address pointing to zero if there is no - corresponding CONTEXT field for the given register number. - */ -static ULONG * -regptr (LPCONTEXT c, int r) -{ - static ULONG zero = 0; - ULONG *p; - if (mappings[r] < 0) - p = &zero; - else - p = (ULONG *) (((char *) c) + mappings[r]); - return p; -} - -/******************** Beginning of stub interface ********************/ - -/* Stub interface description: - - The Windows CE stub implements a crude RPC. The hand-held device - connects to gdb using port 7000. gdb and the stub then communicate - using packets where: - - byte 0: command id (e.g. Create Process) - - byte 1-4: DWORD - - byte 1-2: WORD - - byte 1-2: length - byte 3-n: arbitrary memory. - - The interface is deterministic, i.e., if the stub expects a DWORD then - the gdb server should send a DWORD. - */ - -/* Note: In the functions below, the `huh' parameter is a string passed from the - function containing a descriptive string concerning the current operation. - This is used for error reporting. - - The 'what' parameter is a command id as found in wince-stub.h. - - Hopefully, the rest of the parameters are self-explanatory. - */ - -static int s; /* communication socket */ - -/* v-style interface for handling varying argyment list error messages. - Displays the error message in a dialog box and exits when user clicks - on OK. */ -static void -vstub_error (LPCSTR fmt, va_list * args) -{ - char buf[4096]; - vsprintf (buf, fmt, args); - s = -1; - error ("%s", buf); -} - -/* The standard way to display an error message and exit. */ -static void -stub_error (LPCSTR fmt,...) -{ - va_list args; - va_start (args, fmt); - vstub_error (fmt, args); -} - -/* Standard "oh well" can't communicate error. Someday this might attempt - synchronization. */ -static void -attempt_resync (LPCSTR huh, int s) -{ - stub_error ("lost synchronization with target attempting %s", huh); -} - -/* Read arbitrary stuff from a socket. */ -static int -sockread (LPCSTR huh, int s, void *str, size_t n) -{ - for (;;) - { - if (recv (s, str, n, 0) == n) - return n; - attempt_resync (huh, s); - } -} - -/* Write arbitrary stuff to a socket. */ -static int -sockwrite (LPCSTR huh, const void *str, size_t n) -{ - for (;;) - { - if (send (s, str, n, 0) == n) - return n; - attempt_resync (huh, s); - } -} - -/* Output an id/dword to the host */ -static void -putdword (LPCSTR huh, gdb_wince_id what, DWORD n) -{ - if (sockwrite (huh, &what, sizeof (what)) != sizeof (what)) - stub_error ("error writing record id to host for %s", huh); - if (sockwrite (huh, &n, sizeof (n)) != sizeof (n)) - stub_error ("error writing %s to host.", huh); -} - -/* Output an id/word to the host */ -static void -putword (LPCSTR huh, gdb_wince_id what, WORD n) -{ - if (sockwrite (huh, &what, sizeof (what)) != sizeof (what)) - stub_error ("error writing record id to host for %s", huh); - if (sockwrite (huh, &n, sizeof (n)) != sizeof (n)) - stub_error ("error writing %s host.", huh); -} - -/* Convenience define for outputting a "gdb_wince_len" type. */ -#define putlen(huh, what, n) putword((huh), (what), (gdb_wince_len) (n)) - -/* Put an arbitrary block of memory to the gdb host. This comes in - two chunks an id/dword representing the length and the stream of memory - itself. */ -static void -putmemory (LPCSTR huh, gdb_wince_id what, const void *mem, gdb_wince_len len) -{ - putlen (huh, what, len); - if (((short) len > 0) && sockwrite (huh, mem, len) != len) - stub_error ("error writing %s to host.", huh); -} - -/* Output the result of an operation to the host. If res != 0, sends a block of - memory starting at mem of len bytes. If res == 0, sends -GetLastError () and - avoids sending the mem. */ -static DWORD -getdword (LPCSTR huh, gdb_wince_id what_this) -{ - DWORD n; - gdb_wince_id what; - do - if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) - stub_error ("error getting record type from host - %s.", huh); - while (what_this != what); - - if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) - stub_error ("error getting %s from host.", huh); - - return n; -} - -/* Get a an ID (possibly) and a WORD from the host gdb. - Don't bother with the id if the main loop has already - read it. */ -static WORD -getword (LPCSTR huh, gdb_wince_id what_this) -{ - WORD n; - gdb_wince_id what; - do - if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) - stub_error ("error getting record type from host - %s.", huh); - while (what_this != what); - - if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) - stub_error ("error getting %s from host.", huh); - - return n; -} - -/* Handy defines for getting/putting various types of values. */ -#define gethandle(huh, what) (HANDLE) getdword ((huh), (what)) -#define getpvoid(huh, what) (LPVOID) getdword ((huh), (what)) -#define getlen(huh, what) (gdb_wince_len) getword ((huh), (what)) -#define puthandle(huh, what, h) putdword ((huh), (what), (DWORD) (h)) -#define putpvoid(huh, what, p) putdword ((huh), (what), (DWORD) (p)) - -/* Retrieve the result of an operation from the stub. If nbytes < 0) then nbytes - is actually an error and nothing else follows. Use SetLastError to remember this. - if nbytes > 0, retrieve a block of *nbytes into buf. - */ -int -getresult (LPCSTR huh, gdb_wince_id what, LPVOID buf, gdb_wince_len * nbytes) -{ - gdb_wince_len dummy; - if (nbytes == NULL) - nbytes = &dummy; - - *nbytes = getlen (huh, what); - - if ((short) *nbytes < 0) - { - SetLastError (-(short) *nbytes); - return 0; - } - - if ((gdb_wince_len) sockread (huh, s, buf, *nbytes) != *nbytes) - stub_error ("couldn't read information from wince stub - %s", huh); - - return 1; -} - -/* Convert "narrow" string to "wide". Manipulates a buffer ring of 8 - buffers which hold the translated string. This is an arbitrary limit - but it is approximately double the current needs of this module. - */ -LPWSTR -towide (const char *s, gdb_wince_len * out_len) -{ - static int n = -1; - static LPWSTR outs[8] = - {NULL /*, NULL, etc. */ }; - gdb_wince_len dummy; - - if (!out_len) - out_len = &dummy; - - /* First determine the length required to hold the converted string. */ - *out_len = sizeof (WCHAR) * MultiByteToWideChar (CP_ACP, 0, s, -1, NULL, 0); - if (!*out_len) - return NULL; /* The conversion failed */ - - if (++n >= (sizeof (outs) / sizeof (outs[0]))) - n = 0; /* wrap */ - - /* Allocate space for the converted string, reusing any previously allocated - space, if applicable. Note that if outs[n] is NULL, xrealloc will act as - a malloc (under cygwin, at least). - */ - outs[n] = (LPWSTR) xrealloc (outs[n], *out_len); - memset (outs[n], 0, *out_len); - (void) MultiByteToWideChar (CP_ACP, 0, s, -1, outs[n], *out_len); - return outs[n]; -} - -/******************** Emulation routines start here. ******************** - - The functions below are modelled after their Win32 counterparts. They are named - similarly to Win32 and take exactly the same arguments except where otherwise noted. - They communicate with the stub on the hand-held device by sending their arguments - over the socket and waiting for results from the socket. - - There is one universal change. In cases where a length is expected to be returned - in a DWORD, we use a gdb_wince_len type instead. Currently this is an unsigned short - which is smaller than the standard Win32 DWORD. This is done to minimize unnecessary - traffic since the connection to Windows CE can be slow. To change this, modify the - typedef in wince-stub.h and change the putlen/getlen macros in this file and in - the stub. -*/ - -static int -create_process (LPSTR exec_file, LPSTR args, DWORD flags, PROCESS_INFORMATION * pi) -{ - gdb_wince_len len; - LPWSTR buf; - - buf = towide (exec_file, &len); - putmemory ("CreateProcess exec_file", GDB_CREATEPROCESS, buf, len); - buf = towide (args, &len); - putmemory ("CreateProcess args", GDB_CREATEPROCESS, buf, len); - putdword ("CreateProcess flags", GDB_CREATEPROCESS, flags); - return getresult ("CreateProcess result", GDB_CREATEPROCESS, pi, NULL); -} - -/* Emulate TerminateProcess. Don't bother with the second argument since CE - ignores it. - */ -static int -terminate_process (HANDLE h) -{ - gdb_wince_result res; - if (s < 0) - return 1; - puthandle ("TerminateProcess handle", GDB_TERMINATEPROCESS, h); - return getresult ("TerminateProcess result", GDB_TERMINATEPROCESS, &res, NULL); -} - -static int -wait_for_debug_event (DEBUG_EVENT * ev, DWORD ms) -{ - if (s < 0) - return 1; - putdword ("WaitForDebugEvent ms", GDB_WAITFORDEBUGEVENT, ms); - return getresult ("WaitForDebugEvent event", GDB_WAITFORDEBUGEVENT, ev, NULL); -} - -static int -get_thread_context (HANDLE h, CONTEXT * c) -{ - if (s < 0) - return 1; - puthandle ("GetThreadContext handle", GDB_GETTHREADCONTEXT, h); - putdword ("GetThreadContext flags", GDB_GETTHREADCONTEXT, c->ContextFlags); - return getresult ("GetThreadContext context", GDB_GETTHREADCONTEXT, c, NULL); -} - -static int -set_thread_context (HANDLE h, CONTEXT * c) -{ - gdb_wince_result res; - if (s < 0) - return 1; - puthandle ("SetThreadContext handle", GDB_SETTHREADCONTEXT, h); - putmemory ("SetThreadContext context", GDB_SETTHREADCONTEXT, c, sizeof (*c)); - return getresult ("SetThreadContext context", GDB_SETTHREADCONTEXT, &res, NULL); -} - -static int -read_process_memory (HANDLE h, LPCVOID where, LPVOID buf, gdb_wince_len len, gdb_wince_len * nbytes) -{ - if (s < 0) - return 1; - puthandle ("ReadProcessMemory handle", GDB_READPROCESSMEMORY, h); - putpvoid ("ReadProcessMemory location", GDB_READPROCESSMEMORY, where); - putlen ("ReadProcessMemory size", GDB_READPROCESSMEMORY, len); - - return getresult ("ReadProcessMemory buf", GDB_READPROCESSMEMORY, buf, nbytes); -} - -static int -write_process_memory (HANDLE h, LPCVOID where, LPCVOID buf, gdb_wince_len len, gdb_wince_len * nbytes) -{ - if (s < 0) - return 1; - puthandle ("WriteProcessMemory handle", GDB_WRITEPROCESSMEMORY, h); - putpvoid ("WriteProcessMemory location", GDB_WRITEPROCESSMEMORY, where); - putmemory ("WriteProcProcessMemory buf", GDB_WRITEPROCESSMEMORY, buf, len); - - return getresult ("WriteProcessMemory result", GDB_WRITEPROCESSMEMORY, nbytes, NULL); -} - -static int -remote_read_bytes (CORE_ADDR memaddr, char *myaddr, int len) -{ - gdb_wince_len nbytes; - if (!read_process_memory (current_process_handle, (LPCVOID) memaddr, - (LPVOID) myaddr, len, &nbytes)) - return -1; - return nbytes; -} - -static int -remote_write_bytes (CORE_ADDR memaddr, char *myaddr, int len) -{ - gdb_wince_len nbytes; - if (!write_process_memory (current_process_handle, (LPCVOID) memaddr, - (LPCVOID) myaddr, len, &nbytes)) - return -1; - return nbytes; -} - -/* This is not a standard Win32 function. It instructs the stub to return TRUE - if the thread referenced by HANDLE h is alive. - */ -static int -thread_alive (HANDLE h) -{ - gdb_wince_result res; - if (s < 0) - return 1; - puthandle ("ThreadAlive handle", GDB_THREADALIVE, h); - return getresult ("ThreadAlive result", GDB_THREADALIVE, &res, NULL); -} - -static int -suspend_thread (HANDLE h) -{ - if (s < 0) - return 1; - puthandle ("SuspendThread handle", GDB_SUSPENDTHREAD, h); - return (int) getdword ("SuspendThread result", GDB_SUSPENDTHREAD); -} - -static int -resume_thread (HANDLE h) -{ - if (s < 0) - return 1; - puthandle ("ResumeThread handle", GDB_RESUMETHREAD, h); - return (int) getdword ("SuspendThread result", GDB_RESUMETHREAD); -} - -static int -continue_debug_event (DWORD pid, DWORD tid, DWORD status) -{ - gdb_wince_result res; - if (s < 0) - return 0; - putdword ("ContinueDebugEvent pid", GDB_CONTINUEDEBUGEVENT, pid); - putdword ("ContinueDebugEvent tid", GDB_CONTINUEDEBUGEVENT, tid); - putdword ("ContinueDebugEvent status", GDB_CONTINUEDEBUGEVENT, status); - return getresult ("ContinueDebugEvent result", GDB_CONTINUEDEBUGEVENT, &res, NULL); -} - -static int -close_handle (HANDLE h) -{ - gdb_wince_result res; - if (s < 0) - return 1; - puthandle ("CloseHandle handle", GDB_CLOSEHANDLE, h); - return (int) getresult ("CloseHandle result", GDB_CLOSEHANDLE, &res, NULL); -} - -/* This is not a standard Win32 interface. This function tells the stub - to terminate. - */ -static void -stop_stub (void) -{ - if (s < 0) - return; - (void) putdword ("Stopping gdb stub", GDB_STOPSTUB, 0); - s = -1; -} - -/******************** End of emulation routines. ********************/ -/******************** End of stub interface ********************/ - -#define check_for_step(a, x) (x) - -#ifdef MIPS -static void -undoSStep (thread_info * th) -{ - if (th->stepped) - { - memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); - th->stepped = 0; - } -} - -void -wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) -{ - unsigned long pc; - thread_info *th = current_thread; /* Info on currently selected thread */ - CORE_ADDR mips_next_pc (CORE_ADDR pc); - - if (!insert_breakpoints_p) - { - undoSStep (th); - return; - } - - th->stepped = 1; - pc = read_register (PC_REGNUM); - th->step_pc = mips_next_pc (pc); - th->step_prev = 0; - memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); - return; -} -#elif SHx -/* Hitachi SH architecture instruction encoding masks */ - -#define COND_BR_MASK 0xff00 -#define UCOND_DBR_MASK 0xe000 -#define UCOND_RBR_MASK 0xf0df -#define TRAPA_MASK 0xff00 - -#define COND_DISP 0x00ff -#define UCOND_DISP 0x0fff -#define UCOND_REG 0x0f00 - -/* Hitachi SH instruction opcodes */ - -#define BF_INSTR 0x8b00 -#define BT_INSTR 0x8900 -#define BRA_INSTR 0xa000 -#define BSR_INSTR 0xb000 -#define JMP_INSTR 0x402b -#define JSR_INSTR 0x400b -#define RTS_INSTR 0x000b -#define RTE_INSTR 0x002b -#define TRAPA_INSTR 0xc300 -#define SSTEP_INSTR 0xc3ff - - -#define T_BIT_MASK 0x0001 - -static CORE_ADDR -sh_get_next_pc (CONTEXT *c) -{ - short *instrMem; - int displacement; - int reg; - unsigned short opcode; - - instrMem = (short *) c->Fir; - - opcode = read_memory_integer ((CORE_ADDR) c->Fir, sizeof (opcode)); - - if ((opcode & COND_BR_MASK) == BT_INSTR) - { - if (c->Psr & T_BIT_MASK) - { - displacement = (opcode & COND_DISP) << 1; - if (displacement & 0x80) - displacement |= 0xffffff00; - /* - * Remember PC points to second instr. - * after PC of branch ... so add 4 - */ - instrMem = (short *) (c->Fir + displacement + 4); - } - else - instrMem += 1; - } - else if ((opcode & COND_BR_MASK) == BF_INSTR) - { - if (c->Psr & T_BIT_MASK) - instrMem += 1; - else - { - displacement = (opcode & COND_DISP) << 1; - if (displacement & 0x80) - displacement |= 0xffffff00; - /* - * Remember PC points to second instr. - * after PC of branch ... so add 4 - */ - instrMem = (short *) (c->Fir + displacement + 4); - } - } - else if ((opcode & UCOND_DBR_MASK) == BRA_INSTR) - { - displacement = (opcode & UCOND_DISP) << 1; - if (displacement & 0x0800) - displacement |= 0xfffff000; - - /* - * Remember PC points to second instr. - * after PC of branch ... so add 4 - */ - instrMem = (short *) (c->Fir + displacement + 4); - } - else if ((opcode & UCOND_RBR_MASK) == JSR_INSTR) - { - reg = (char) ((opcode & UCOND_REG) >> 8); - - instrMem = (short *) *regptr (c, reg); - } - else if (opcode == RTS_INSTR) - instrMem = (short *) c->PR; - else if (opcode == RTE_INSTR) - instrMem = (short *) *regptr (c, 15); - else if ((opcode & TRAPA_MASK) == TRAPA_INSTR) - instrMem = (short *) ((opcode & ~TRAPA_MASK) << 2); - else - instrMem += 1; - - return (CORE_ADDR) instrMem; -} -/* Single step (in a painstaking fashion) by inspecting the current - instruction and setting a breakpoint on the "next" instruction - which would be executed. This code hails from sh-stub.c. - */ -static void -undoSStep (thread_info * th) -{ - if (th->stepped) - { - memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); - th->stepped = 0; - } - return; -} - -/* Single step (in a painstaking fashion) by inspecting the current - instruction and setting a breakpoint on the "next" instruction - which would be executed. This code hails from sh-stub.c. - */ -void -wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) -{ - thread_info *th = current_thread; /* Info on currently selected thread */ - - if (!insert_breakpoints_p) - { - undoSStep (th); - return; - } - - th->stepped = 1; - th->step_pc = sh_get_next_pc (&th->context); - th->step_prev = 0; - memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); - return; -} -#elif defined (ARM) -#undef check_for_step - -static enum target_signal -check_for_step (DEBUG_EVENT *ev, enum target_signal x) -{ - thread_info *th = thread_rec (ev->dwThreadId, 1); - - if (th->stepped && - th->step_pc == (CORE_ADDR) ev->u.Exception.ExceptionRecord.ExceptionAddress) - return TARGET_SIGNAL_TRAP; - else - return x; -} - -/* Single step (in a painstaking fashion) by inspecting the current - instruction and setting a breakpoint on the "next" instruction - which would be executed. This code hails from sh-stub.c. - */ -static void -undoSStep (thread_info * th) -{ - if (th->stepped) - { - memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); - th->stepped = 0; - } -} - -void -wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) -{ - unsigned long pc; - thread_info *th = current_thread; /* Info on currently selected thread */ - CORE_ADDR mips_next_pc (CORE_ADDR pc); - - if (!insert_breakpoints_p) - { - undoSStep (th); - return; - } - - th->stepped = 1; - pc = read_register (PC_REGNUM); - th->step_pc = arm_get_next_pc (pc); - th->step_prev = 0; - memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); - return; -} -#endif - -/* Find a thread record given a thread id. - If get_context then also retrieve the context for this - thread. */ -static thread_info * -thread_rec (DWORD id, int get_context) -{ - thread_info *th; - - for (th = &thread_head; (th = th->next) != NULL;) - if (th->id == id) - { - if (!th->suspend_count && get_context) - { - if (get_context > 0 && th != this_thread) - th->suspend_count = suspend_thread (th->h) + 1; - else if (get_context < 0) - th->suspend_count = -1; - - th->context.ContextFlags = CONTEXT_DEBUGGER; - get_thread_context (th->h, &th->context); - } - return th; - } - - return NULL; -} - -/* Add a thread to the thread list */ -static thread_info * -child_add_thread (DWORD id, HANDLE h) -{ - thread_info *th; - - if ((th = thread_rec (id, FALSE))) - return th; - - th = (thread_info *) xmalloc (sizeof (*th)); - memset (th, 0, sizeof (*th)); - th->id = id; - th->h = h; - th->next = thread_head.next; - thread_head.next = th; - add_thread (id); - return th; -} - -/* Clear out any old thread list and reintialize it to a - pristine state. */ -static void -child_init_thread_list (void) -{ - thread_info *th = &thread_head; - - DEBUG_EVENTS (("gdb: child_init_thread_list\n")); - init_thread_list (); - while (th->next != NULL) - { - thread_info *here = th->next; - th->next = here->next; - (void) close_handle (here->h); - xfree (here); - } -} - -/* Delete a thread from the list of threads */ -static void -child_delete_thread (DWORD id) -{ - thread_info *th; - - if (info_verbose) - printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id)); - delete_thread (id); - - for (th = &thread_head; - th->next != NULL && th->next->id != id; - th = th->next) - continue; - - if (th->next != NULL) - { - thread_info *here = th->next; - th->next = here->next; - close_handle (here->h); - xfree (here); - } -} - -static void -check (BOOL ok, const char *file, int line) -{ - if (!ok) - printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); -} - -static void -do_child_fetch_inferior_registers (int r) -{ - if (r >= 0) - { - supply_register (r, (char *) regptr (¤t_thread->context, r)); - } - else - { - for (r = 0; r < NUM_REGS; r++) - do_child_fetch_inferior_registers (r); - } -} - -static void -child_fetch_inferior_registers (int r) -{ - current_thread = thread_rec (inferior_pid, TRUE); - do_child_fetch_inferior_registers (r); -} - -static void -do_child_store_inferior_registers (int r) -{ - if (r >= 0) - read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]); - else - { - for (r = 0; r < NUM_REGS; r++) - do_child_store_inferior_registers (r); - } -} - -/* Store a new register value into the current thread context */ -static void -child_store_inferior_registers (int r) -{ - current_thread = thread_rec (inferior_pid, TRUE); - do_child_store_inferior_registers (r); -} - -/* Wait for child to do something. Return pid of child, or -1 in case - of error; store status through argument pointer OURSTATUS. */ - -static int -handle_load_dll (void *dummy) -{ - LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; - char dll_buf[MAX_PATH + 1]; - char *p, *bufp, *imgp, *dll_name, *dll_basename; - int len; - - dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; - if (!event->lpImageName) - return 1; - - len = 0; - for (bufp = dll_buf, imgp = event->lpImageName; - bufp < dll_buf + sizeof (dll_buf); - bufp += 16, imgp += 16) - { - gdb_wince_len nbytes = 0; - (void) read_process_memory (current_process_handle, - imgp, bufp, 16, &nbytes); - - if (!nbytes && bufp == dll_buf) - return 1; /* couldn't read it */ - for (p = bufp; p < bufp + nbytes; p++) - { - len++; - if (*p == '\0') - goto out; - if (event->fUnicode) - p++; - } - if (!nbytes) - break; - } - -out: - if (!len) - return 1; -#if 0 - dll_buf[len] = '\0'; -#endif - dll_name = alloca (len); - - if (!dll_name) - return 1; - - if (!event->fUnicode) - memcpy (dll_name, dll_buf, len); - else - WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) dll_buf, len, - dll_name, len, 0, 0); - - while ((p = strchr (dll_name, '\\'))) - *p = '/'; - - /* FIXME!! It would be nice to define one symbol which pointed to the - front of the dll if we can't find any symbols. */ - - if (!(dll_basename = strrchr (dll_name, '/'))) - dll_basename = dll_name; - else - dll_basename++; - - /* The symbols in a dll are offset by 0x1000, which is the - the offset from 0 of the first byte in an image - because - of the file header and the section alignment. - - FIXME: Is this the real reason that we need the 0x1000 ? */ - - printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name); - printf_unfiltered ("\n"); - - return 1; -} - -/* Handle DEBUG_STRING output from child process. */ -static void -handle_output_debug_string (struct target_waitstatus *ourstatus) -{ - char p[256]; - char s[255]; - char *q; - gdb_wince_len nbytes_read; - gdb_wince_len nbytes = current_event.u.DebugString.nDebugStringLength; - - if (nbytes > 255) - nbytes = 255; - - memset (p, 0, sizeof (p)); - if (!read_process_memory (current_process_handle, - current_event.u.DebugString.lpDebugStringData, - &p, nbytes, &nbytes_read) - || !*p) - return; - - memset (s, 0, sizeof (s)); - WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) p, (int) nbytes_read, s, - sizeof (s) - 1, NULL, NULL); - q = strchr (s, '\n'); - if (q != NULL) - { - *q = '\0'; - if (*--q = '\r') - *q = '\0'; - } - - warning (s); - - return; -} - -/* Handle target exceptions. */ -static int -handle_exception (struct target_waitstatus *ourstatus) -{ -#if 0 - if (current_event.u.Exception.dwFirstChance) - return 0; -#endif - - ourstatus->kind = TARGET_WAITKIND_STOPPED; - - switch (current_event.u.Exception.ExceptionRecord.ExceptionCode) - { - case EXCEPTION_ACCESS_VIOLATION: - DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n", - (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = TARGET_SIGNAL_SEGV; - break; - case STATUS_STACK_OVERFLOW: - DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n", - (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = TARGET_SIGNAL_SEGV; - break; - case EXCEPTION_BREAKPOINT: - DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n", - (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = TARGET_SIGNAL_TRAP; - break; - case DBG_CONTROL_C: - DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n", - (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = TARGET_SIGNAL_INT; - /* User typed CTRL-C. Continue with this status */ - last_sig = SIGINT; /* FIXME - should check pass state */ - break; - case EXCEPTION_SINGLE_STEP: - DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n", - (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = TARGET_SIGNAL_TRAP; - break; - case EXCEPTION_ILLEGAL_INSTRUCTION: - DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08x\n", - current_event.u.Exception.ExceptionRecord.ExceptionAddress)); - ourstatus->value.sig = check_for_step (¤t_event, TARGET_SIGNAL_ILL); - break; - default: - /* This may be a structured exception handling exception. In - that case, we want to let the program try to handle it, and - only break if we see the exception a second time. */ - - printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n", - current_event.u.Exception.ExceptionRecord.ExceptionCode, - current_event.u.Exception.ExceptionRecord.ExceptionAddress); - ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; - break; - } - exception_count++; - return 1; -} - -/* Resume all artificially suspended threads if we are continuing - execution */ -static BOOL -child_continue (DWORD continue_status, int id) -{ - int i; - thread_info *th; - BOOL res; - - DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n", - (unsigned) current_event.dwProcessId, (unsigned) current_event.dwThreadId)); - res = continue_debug_event (current_event.dwProcessId, - current_event.dwThreadId, - continue_status); - if (res) - for (th = &thread_head; (th = th->next) != NULL;) - if (((id == -1) || (id == th->id)) && th->suspend_count) - { - for (i = 0; i < th->suspend_count; i++) - (void) resume_thread (th->h); - th->suspend_count = 0; - } - - return res; -} - -/* Get the next event from the child. Return 1 if the event requires - handling by WFI (or whatever). - */ -static int -get_child_debug_event (int pid, struct target_waitstatus *ourstatus, - DWORD target_event_code, int *retval) -{ - int breakout = 0; - BOOL debug_event; - DWORD continue_status, event_code; - thread_info *th = NULL; - static thread_info dummy_thread_info; - - if (!(debug_event = wait_for_debug_event (¤t_event, 1000))) - { - *retval = 0; - goto out; - } - - event_count++; - continue_status = DBG_CONTINUE; - *retval = 0; - - event_code = current_event.dwDebugEventCode; - breakout = event_code == target_event_code; - - switch (event_code) - { - case CREATE_THREAD_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "CREATE_THREAD_DEBUG_EVENT")); - /* Record the existence of this thread */ - th = child_add_thread (current_event.dwThreadId, - current_event.u.CreateThread.hThread); - if (info_verbose) - printf_unfiltered ("[New %s]\n", - target_pid_to_str (current_event.dwThreadId)); - break; - - case EXIT_THREAD_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "EXIT_THREAD_DEBUG_EVENT")); - child_delete_thread (current_event.dwThreadId); - th = &dummy_thread_info; - break; - - case CREATE_PROCESS_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "CREATE_PROCESS_DEBUG_EVENT")); - current_process_handle = current_event.u.CreateProcessInfo.hProcess; - - main_thread_id = inferior_pid = current_event.dwThreadId; - /* Add the main thread */ - th = child_add_thread (inferior_pid, - current_event.u.CreateProcessInfo.hThread); - break; - - case EXIT_PROCESS_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "EXIT_PROCESS_DEBUG_EVENT")); - ourstatus->kind = TARGET_WAITKIND_EXITED; - ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; - close_handle (current_process_handle); - *retval = current_event.dwProcessId; - breakout = 1; - break; - - case LOAD_DLL_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "LOAD_DLL_DEBUG_EVENT")); - catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); - registers_changed (); /* mark all regs invalid */ - break; - - case UNLOAD_DLL_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "UNLOAD_DLL_DEBUG_EVENT")); - break; /* FIXME: don't know what to do here */ - - case EXCEPTION_DEBUG_EVENT: - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "EXCEPTION_DEBUG_EVENT")); - if (handle_exception (ourstatus)) - *retval = current_event.dwThreadId; - else - { - continue_status = DBG_EXCEPTION_NOT_HANDLED; - breakout = 0; - } - break; - - case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ - DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", - (unsigned) current_event.dwProcessId, - (unsigned) current_event.dwThreadId, - "OUTPUT_DEBUG_STRING_EVENT")); - handle_output_debug_string ( ourstatus); - break; - default: - printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n", - current_event.dwProcessId, - current_event.dwThreadId); - printf_unfiltered (" unknown event code %d\n", - current_event.dwDebugEventCode); - break; - } - - if (breakout) - this_thread = current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); - else - CHECK (child_continue (continue_status, -1)); - -out: - return breakout; -} - -/* Wait for interesting events to occur in the target process. */ -static int -child_wait (int pid, struct target_waitstatus *ourstatus) -{ - DWORD event_code; - int retval; - - /* We loop when we get a non-standard exception rather than return - with a SPURIOUS because resume can try and step or modify things, - which needs a current_thread->h. But some of these exceptions mark - the birth or death of threads, which mean that the current thread - isn't necessarily what you think it is. */ - - while (1) - if (get_child_debug_event (pid, ourstatus, EXCEPTION_DEBUG_EVENT, &retval)) - return retval; - else - { - int detach = 0; - - if (ui_loop_hook != NULL) - detach = ui_loop_hook (0); - - if (detach) - child_kill_inferior (); - } -} - -/* Print status information about what we're accessing. */ - -static void -child_files_info (struct target_ops *ignore) -{ - printf_unfiltered ("\tUsing the running image of child %s.\n", - target_pid_to_str (inferior_pid)); -} - -/* ARGSUSED */ -static void -child_open (char *arg, int from_tty) -{ - error ("Use the \"run\" command to start a child process."); -} - -#define FACTOR (0x19db1ded53ea710LL) -#define NSPERSEC 10000000 - -/* Convert a Win32 time to "UNIX" format. */ -long -to_time_t (FILETIME * ptr) -{ - /* A file time is the number of 100ns since jan 1 1601 - stuffed into two long words. - A time_t is the number of seconds since jan 1 1970. */ - - long rem; - long long x = ((long long) ptr->dwHighDateTime << 32) + ((unsigned) ptr->dwLowDateTime); - x -= FACTOR; /* number of 100ns between 1601 and 1970 */ - rem = x % ((long long) NSPERSEC); - rem += (NSPERSEC / 2); - x /= (long long) NSPERSEC; /* number of 100ns in a second */ - x += (long long) (rem / NSPERSEC); - return x; -} - -/* Upload a file to the remote device depending on the user's - 'set remoteupload' specification. */ -char * -upload_to_device (const char *to, const char *from) -{ - HANDLE h; - const char *dir = remote_directory ?: "\\gdb"; - int len; - static char *remotefile = NULL; - LPWSTR wstr; - char *p; - DWORD err; - const char *in_to = to; - FILETIME crtime, actime, wrtime; - time_t utime; - struct stat st; - int fd; - - /* Look for a path separator and only use trailing part. */ - while ((p = strpbrk (to, "/\\")) != NULL) - to = p + 1; - - if (!*to) - error ("no filename found to upload - %s.", in_to); - - len = strlen (dir) + strlen (to) + 2; - remotefile = (char *) xrealloc (remotefile, len); - strcpy (remotefile, dir); - strcat (remotefile, "\\"); - strcat (remotefile, to); - - if (upload_when == UPLOAD_NEVER) - return remotefile; /* Don't bother uploading. */ - - /* Open the source. */ - if ((fd = openp (getenv ("PATH"), TRUE, (char *) from, O_RDONLY, 0, NULL)) < 0) - error ("couldn't open %s", from); - - /* Get the time for later comparison. */ - if (fstat (fd, &st)) - st.st_mtime = (time_t) - 1; - - /* Always attempt to create the directory on the remote system. */ - wstr = towide (dir, NULL); - (void) CeCreateDirectory (wstr, NULL); - - /* Attempt to open the remote file, creating it if it doesn't exist. */ - wstr = towide (remotefile, NULL); - h = CeCreateFile (wstr, GENERIC_READ | GENERIC_WRITE, 0, NULL, - OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); - - /* Some kind of problem? */ - err = CeGetLastError (); - if (h == NULL || h == INVALID_HANDLE_VALUE) - error ("error opening file \"%s\". Windows error %d.", - remotefile, err); - - CeGetFileTime (h, &crtime, &actime, &wrtime); - utime = to_time_t (&wrtime); -#if 0 - if (utime < st.st_mtime) - { - char buf[80]; - strcpy (buf, ctime(&utime)); - printf ("%s < %s\n", buf, ctime(&st.st_mtime)); - } -#endif - /* See if we need to upload the file. */ - if (upload_when == UPLOAD_ALWAYS || - err != ERROR_ALREADY_EXISTS || - !CeGetFileTime (h, &crtime, &actime, &wrtime) || - to_time_t (&wrtime) < st.st_mtime) - { - DWORD nbytes; - char buf[4096]; - int n; - - /* Upload the file. */ - while ((n = read (fd, buf, sizeof (buf))) > 0) - if (!CeWriteFile (h, buf, (DWORD) n, &nbytes, NULL)) - error ("error writing to remote device - %d.", - CeGetLastError ()); - } - - close (fd); - if (!CeCloseHandle (h)) - error ("error closing remote file - %d.", CeGetLastError ()); - - return remotefile; -} - -/* Initialize the connection to the remote device. */ -static void -wince_initialize (void) -{ - int tmp; - char args[256]; - char *hostname; - struct sockaddr_in sin; - char *stub_file_name; - int s0; - PROCESS_INFORMATION pi; - - if (!connection_initialized) - switch (CeRapiInit ()) - { - case 0: - connection_initialized = 1; - break; - default: - CeRapiUninit (); - error ("Can't initialize connection to remote device.\n"); - break; - } - - /* Upload the stub to the handheld device. */ - stub_file_name = upload_to_device ("wince-stub.exe", WINCE_STUB); - strcpy (args, stub_file_name); - - if (remote_add_host) - { - strcat (args, " "); - hostname = strchr (args, '\0'); - if (gethostname (hostname, sizeof (args) - strlen (args))) - error ("couldn't get hostname of this system."); - } - - /* Get a socket. */ - if ((s0 = socket (AF_INET, SOCK_STREAM, 0)) < 0) - stub_error ("Couldn't connect to host system."); - - /* Allow rapid reuse of the port. */ - tmp = 1; - (void) setsockopt (s0, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof (tmp)); - - - /* Set up the information for connecting to the host gdb process. */ - memset (&sin, 0, sizeof (sin)); - sin.sin_family = AF_INET; - sin.sin_port = htons (7000); /* FIXME: This should be configurable */ - - if (bind (s0, (struct sockaddr *) &sin, sizeof (sin))) - error ("couldn't bind socket"); - - if (listen (s0, 1)) - error ("Couldn't open socket for listening.\n"); - - /* Start up the stub on the remote device. */ - if (!CeCreateProcess (towide (stub_file_name, NULL), towide (args, NULL), - NULL, NULL, 0, 0, NULL, NULL, NULL, &pi)) - error ("Unable to start remote stub '%s'. Windows CE error %d.", - stub_file_name, CeGetLastError ()); - - /* Wait for a connection */ - - if ((s = accept (s0, NULL, NULL)) < 0) - error ("couldn't set up server for connection."); - - close (s0); -} - -/* Start an inferior win32 child process and sets inferior_pid to its pid. - EXEC_FILE is the file to run. - ALLARGS is a string containing the arguments to the program. - ENV is the environment vector to pass. Errors reported with error(). */ -static void -child_create_inferior (char *exec_file, char *args, char **env) -{ - PROCESS_INFORMATION pi; - struct target_waitstatus dummy; - int ret; - DWORD flags, event_code; - char *exec_and_args; - - if (!exec_file) - error ("No executable specified, use `target exec'.\n"); - - flags = DEBUG_PROCESS; - - wince_initialize (); /* Make sure we've got a connection. */ - - exec_file = upload_to_device (exec_file, exec_file); - - while (*args == ' ') - args++; - - /* Allocate space for "command<sp>args" */ - if (*args == '\0') - { - exec_and_args = alloca (strlen (exec_file) + 1); - strcpy (exec_and_args, exec_file); - } - else - { - exec_and_args = alloca (strlen (exec_file + strlen (args) + 2)); - sprintf (exec_and_args, "%s %s", exec_file, args); - } - - memset (&pi, 0, sizeof (pi)); - /* Execute the process */ - if (!create_process (exec_file, exec_and_args, flags, &pi)) - error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ()); - - exception_count = 0; - event_count = 0; - - current_process_handle = pi.hProcess; - current_event.dwProcessId = pi.dwProcessId; - memset (¤t_event, 0, sizeof (current_event)); - inferior_pid = current_event.dwThreadId = pi.dwThreadId; - push_target (&child_ops); - child_init_thread_list (); - child_add_thread (pi.dwThreadId, pi.hThread); - init_wait_for_inferior (); - clear_proceed_status (); - target_terminal_init (); - target_terminal_inferior (); - - /* Run until process and threads are loaded */ - while (!get_child_debug_event (inferior_pid, &dummy, - CREATE_PROCESS_DEBUG_EVENT, &ret)) - continue; - - proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); -} - -/* Chile has gone bye-bye. */ -static void -child_mourn_inferior (void) -{ - (void) child_continue (DBG_CONTINUE, -1); - unpush_target (&child_ops); - stop_stub (); - CeRapiUninit (); - connection_initialized = 0; - generic_mourn_inferior (); -} - -/* Move memory from child to/from gdb. */ -int -child_xfer_memory (CORE_ADDR memaddr, char *our, int len, - int write, struct target_ops *target) -{ - if (len <= 0) - return 0; - - if (write) - res = remote_write_bytes (memaddr, our, len); - else - res = remote_read_bytes (memaddr, our, len); - - return res; -} - -/* Terminate the process and wait for child to tell us it has completed. */ -void -child_kill_inferior (void) -{ - CHECK (terminate_process (current_process_handle)); - - for (;;) - { - if (!child_continue (DBG_CONTINUE, -1)) - break; - if (!wait_for_debug_event (¤t_event, INFINITE)) - break; - if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) - break; - } - - CHECK (close_handle (current_process_handle)); - close_handle (current_thread->h); - target_mourn_inferior (); /* or just child_mourn_inferior? */ -} - -/* Resume the child after an exception. */ -void -child_resume (int pid, int step, enum target_signal sig) -{ - thread_info *th; - DWORD continue_status = last_sig > 0 && last_sig < NSIG ? - DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE; - - DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", - pid, step, sig)); - - /* Get context for currently selected thread */ - th = thread_rec (current_event.dwThreadId, FALSE); - - if (th->context.ContextFlags) - { - CHECK (set_thread_context (th->h, &th->context)); - th->context.ContextFlags = 0; - } - - /* Allow continuing with the same signal that interrupted us. - Otherwise complain. */ - if (sig && sig != last_sig) - fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig); - - last_sig = 0; - child_continue (continue_status, pid); -} - -static void -child_prepare_to_store (void) -{ - /* Do nothing, since we can store individual regs */ -} - -static int -child_can_run (void) -{ - return 1; -} - -static void -child_close (void) -{ - DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid)); -} - -/* Explicitly upload file to remotedir */ - -static void -child_load (char *file, int from_tty) -{ - upload_to_device (file, file); -} - -struct target_ops child_ops; - -static void -init_child_ops (void) -{ - memset (&child_ops, 0, sizeof (child_ops)); - child_ops.to_shortname = (char *) "child"; - child_ops.to_longname = (char *) "Windows CE process"; - child_ops.to_doc = (char *) "Windows CE process (started by the \"run\" command)."; - child_ops.to_open = child_open; - child_ops.to_close = child_close; - child_ops.to_resume = child_resume; - child_ops.to_wait = child_wait; - child_ops.to_fetch_registers = child_fetch_inferior_registers; - child_ops.to_store_registers = child_store_inferior_registers; - child_ops.to_prepare_to_store = child_prepare_to_store; - child_ops.to_xfer_memory = child_xfer_memory; - child_ops.to_files_info = child_files_info; - child_ops.to_insert_breakpoint = memory_insert_breakpoint; - child_ops.to_remove_breakpoint = memory_remove_breakpoint; - child_ops.to_terminal_init = terminal_init_inferior; - child_ops.to_terminal_inferior = terminal_inferior; - child_ops.to_terminal_ours_for_output = terminal_ours_for_output; - child_ops.to_terminal_ours = terminal_ours; - child_ops.to_terminal_info = child_terminal_info; - child_ops.to_kill = child_kill_inferior; - child_ops.to_load = child_load; - child_ops.to_create_inferior = child_create_inferior; - child_ops.to_mourn_inferior = child_mourn_inferior; - child_ops.to_can_run = child_can_run; - child_ops.to_thread_alive = win32_child_thread_alive; - child_ops.to_stratum = process_stratum; - child_ops.to_has_all_memory = 1; - child_ops.to_has_memory = 1; - child_ops.to_has_stack = 1; - child_ops.to_has_registers = 1; - child_ops.to_has_execution = 1; - child_ops.to_sections = 0; - child_ops.to_sections_end = 0; - child_ops.to_magic = OPS_MAGIC; -} - - -/* Handle 'set remoteupload' parameter. */ - -#define replace_upload(what) \ - upload_when = what; \ - remote_upload = xrealloc (remote_upload, strlen (upload_options[upload_when].name) + 1); \ - strcpy (remote_upload, upload_options[upload_when].name); - -static void -set_upload_type (char *ignore, int from_tty) -{ - int i, len; - char *bad_option; - - if (!remote_upload || !remote_upload[0]) - { - replace_upload (UPLOAD_NEWER); - if (from_tty) - printf_unfiltered ("Upload upload_options are: always, newer, never.\n"); - return; - } - - len = strlen (remote_upload); - for (i = 0; i < (sizeof (upload_options) / sizeof (upload_options[0])); i++) - if (len >= upload_options[i].abbrev && - strncasecmp (remote_upload, upload_options[i].name, len) == 0) - { - replace_upload (i); - return; - } - - bad_option = remote_upload; - replace_upload (UPLOAD_NEWER); - error ("Unknown upload type: %s.", bad_option); -} - -void -_initialize_inftarg (void) -{ - struct cmd_list_element *set; - init_child_ops (); - - add_show_from_set - (add_set_cmd ((char *) "remotedirectory", no_class, - var_string_noescape, (char *) &remote_directory, - (char *) "Set directory for remote upload.\n", - &setlist), - &showlist); - remote_directory = xstrdup (remote_directory); - - set = add_set_cmd ((char *) "remoteupload", no_class, - var_string_noescape, (char *) &remote_upload, - (char *) "Set how to upload executables to remote device.\n", - &setlist); - add_show_from_set (set, &showlist); - set->function.cfunc = set_upload_type; - set_upload_type (NULL, 0); - - add_show_from_set - (add_set_cmd ((char *) "debugexec", class_support, var_boolean, - (char *) &debug_exec, - (char *) "Set whether to display execution in child process.", - &setlist), - &showlist); - - add_show_from_set - (add_set_cmd ((char *) "remoteaddhost", class_support, var_boolean, - (char *) &remote_add_host, - (char *) "Set whether to add this host to remote stub arguments for\n -debugging over a network.", &setlist), - &showlist); - - add_show_from_set - (add_set_cmd ((char *) "debugevents", class_support, var_boolean, - (char *) &debug_events, - (char *) "Set whether to display kernel events in child process.", - &setlist), - &showlist); - - add_show_from_set - (add_set_cmd ((char *) "debugmemory", class_support, var_boolean, - (char *) &debug_memory, - (char *) "Set whether to display memory accesses in child process.", - &setlist), - &showlist); - - add_show_from_set - (add_set_cmd ((char *) "debugexceptions", class_support, var_boolean, - (char *) &debug_exceptions, - (char *) "Set whether to display kernel exceptions in child process.", - &setlist), - &showlist); - - add_target (&child_ops); -} - -/* Determine if the thread referenced by "pid" is alive - by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 - it means that the pid has died. Otherwise it is assumed to be alive. */ -static int -win32_child_thread_alive (int pid) -{ - return thread_alive (thread_rec (pid, FALSE)->h); -} - -/* Convert pid to printable format. */ -char * -cygwin_pid_to_str (int pid) -{ - static char buf[80]; - if (pid == current_event.dwProcessId) - sprintf (buf, "process %d", pid); - else - sprintf (buf, "thread %d.0x%x", (unsigned) current_event.dwProcessId, pid); - return buf; -} |