* win32-low.c: Commit leftover changes from 2007-03-29.
This commit is contained in:
Pedro Alves
parent
7ce5900041
commit
ed50f18f18
2 changed files with 226 additions and 160 deletions
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@ -1,3 +1,7 @@
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2007-03-30 Pedro Alves <pedro_alves@portugalmail.pt>
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* win32-low.c: Commit leftover changes from 2007-03-29.
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2007-03-30 Daniel Jacobowitz <dan@codesourcery.com>
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* i387-fp.c (struct i387_fsave, struct i387_fxsave): Make 16-bit
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@ -23,8 +23,11 @@
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#include "server.h"
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#include "regcache.h"
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#include "gdb/signals.h"
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#include "mem-break.h"
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#include "win32-low.h"
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#include <windows.h>
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#include <winnt.h>
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#include <imagehlp.h>
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#include <psapi.h>
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#include <sys/param.h>
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@ -41,7 +44,15 @@
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#if LOG
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#define OUTMSG2(X) do { printf X; fflush (stdout); } while (0)
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#else
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#define OUTMSG2(X)
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#define OUTMSG2(X) do ; while (0)
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#endif
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#ifndef _T
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#define _T(x) TEXT (x)
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#endif
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#ifndef COUNTOF
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#define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0]))
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#endif
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int using_threads = 1;
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@ -56,25 +67,28 @@ static DEBUG_EVENT current_event;
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static int debug_registers_changed = 0;
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static int debug_registers_used = 0;
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static unsigned dr[8];
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#define NUM_REGS (the_low_target.num_regs)
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typedef BOOL winapi_DebugActiveProcessStop (DWORD dwProcessId);
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typedef BOOL winapi_DebugSetProcessKillOnExit (BOOL KillOnExit);
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#define FLAG_TRACE_BIT 0x100
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#ifndef CONTEXT_EXTENDED_REGISTERS
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#define CONTEXT_EXTENDED_REGISTERS 0
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#endif
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#ifndef CONTEXT_FLOATING_POINT
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#define CONTEXT_FLOATING_POINT 0
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#endif
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#ifndef CONTEXT_DEBUG_REGISTERS
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#define CONTEXT_DEBUG_REGISTERS 0
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#endif
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#define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
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#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
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| CONTEXT_EXTENDED_REGISTERS
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/* Thread information structure used to track extra information about
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each thread. */
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typedef struct win32_thread_info
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{
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DWORD tid;
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HANDLE h;
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int suspend_count;
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CONTEXT context;
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} win32_thread_info;
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static DWORD main_thread_id = 0;
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/* Get the thread ID from the current selected inferior (the current
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@ -113,12 +127,8 @@ thread_rec (DWORD id, int get_context)
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if (id == current_event.dwThreadId)
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{
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/* Copy dr values from that thread. */
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dr[0] = th->context.Dr0;
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dr[1] = th->context.Dr1;
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dr[2] = th->context.Dr2;
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dr[3] = th->context.Dr3;
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dr[6] = th->context.Dr6;
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dr[7] = th->context.Dr7;
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if (the_low_target.store_debug_registers != NULL)
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(*the_low_target.store_debug_registers) (th);
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}
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}
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@ -145,20 +155,16 @@ child_add_thread (DWORD tid, HANDLE h)
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new_register_cache ());
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/* Set the debug registers for the new thread if they are used. */
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if (debug_registers_used)
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if (debug_registers_used
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&& the_low_target.load_debug_registers != NULL)
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{
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/* Only change the value of the debug registers. */
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th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
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GetThreadContext (th->h, &th->context);
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th->context.Dr0 = dr[0];
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th->context.Dr1 = dr[1];
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th->context.Dr2 = dr[2];
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th->context.Dr3 = dr[3];
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/* th->context.Dr6 = dr[6];
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FIXME: should we set dr6 also ?? */
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th->context.Dr7 = dr[7];
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(*the_low_target.load_debug_registers) (th);
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SetThreadContext (th->h, &th->context);
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th->context.ContextFlags = 0;
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}
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@ -257,60 +263,26 @@ struct target_waitstatus
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value;
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};
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#define NUM_REGS 41
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#define FCS_REGNUM 27
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#define FOP_REGNUM 31
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/* Return a pointer into a CONTEXT field indexed by gdb register number.
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Return a pointer to an dummy register holding zero if there is no
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corresponding CONTEXT field for the given register number. */
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char *
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regptr (CONTEXT* c, int r)
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{
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if (the_low_target.regmap[r] < 0)
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{
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static ULONG zero;
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/* Always force value to zero, in case the user tried to write
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to this register before. */
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zero = 0;
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return (char *) &zero;
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}
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else
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return (char *) c + the_low_target.regmap[r];
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}
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#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
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static const int mappings[] = {
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context_offset (Eax),
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context_offset (Ecx),
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context_offset (Edx),
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context_offset (Ebx),
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context_offset (Esp),
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context_offset (Ebp),
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context_offset (Esi),
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context_offset (Edi),
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context_offset (Eip),
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context_offset (EFlags),
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context_offset (SegCs),
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context_offset (SegSs),
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context_offset (SegDs),
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context_offset (SegEs),
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context_offset (SegFs),
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context_offset (SegGs),
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context_offset (FloatSave.RegisterArea[0 * 10]),
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context_offset (FloatSave.RegisterArea[1 * 10]),
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context_offset (FloatSave.RegisterArea[2 * 10]),
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context_offset (FloatSave.RegisterArea[3 * 10]),
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context_offset (FloatSave.RegisterArea[4 * 10]),
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context_offset (FloatSave.RegisterArea[5 * 10]),
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context_offset (FloatSave.RegisterArea[6 * 10]),
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context_offset (FloatSave.RegisterArea[7 * 10]),
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context_offset (FloatSave.ControlWord),
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context_offset (FloatSave.StatusWord),
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context_offset (FloatSave.TagWord),
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context_offset (FloatSave.ErrorSelector),
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context_offset (FloatSave.ErrorOffset),
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context_offset (FloatSave.DataSelector),
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context_offset (FloatSave.DataOffset),
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context_offset (FloatSave.ErrorSelector),
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/* XMM0-7 */
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context_offset (ExtendedRegisters[10 * 16]),
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context_offset (ExtendedRegisters[11 * 16]),
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context_offset (ExtendedRegisters[12 * 16]),
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context_offset (ExtendedRegisters[13 * 16]),
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context_offset (ExtendedRegisters[14 * 16]),
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context_offset (ExtendedRegisters[15 * 16]),
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context_offset (ExtendedRegisters[16 * 16]),
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context_offset (ExtendedRegisters[17 * 16]),
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/* MXCSR */
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context_offset (ExtendedRegisters[24])
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};
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#undef context_offset
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/* Clear out any old thread list and reintialize it to a pristine
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/* Clear out any old thread list and reinitialize it to a pristine
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state. */
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static void
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child_init_thread_list (void)
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@ -321,17 +293,17 @@ child_init_thread_list (void)
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static void
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do_initial_child_stuff (DWORD pid)
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{
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int i;
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last_sig = TARGET_SIGNAL_0;
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debug_registers_changed = 0;
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debug_registers_used = 0;
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for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++)
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dr[i] = 0;
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memset (¤t_event, 0, sizeof (current_event));
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child_init_thread_list ();
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if (the_low_target.initial_stuff != NULL)
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(*the_low_target.initial_stuff) ();
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}
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/* Resume all artificially suspended threads if we are continuing
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@ -354,13 +326,10 @@ continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr)
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{
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/* Only change the value of the debug registers. */
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th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
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th->context.Dr0 = dr[0];
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th->context.Dr1 = dr[1];
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th->context.Dr2 = dr[2];
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th->context.Dr3 = dr[3];
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/* th->context.Dr6 = dr[6];
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FIXME: should we set dr6 also ?? */
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th->context.Dr7 = dr[7];
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if (the_low_target.load_debug_registers != NULL)
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the_low_target.load_debug_registers (th);
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SetThreadContext (th->h, &th->context);
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th->context.ContextFlags = 0;
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}
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@ -384,26 +353,6 @@ child_continue (DWORD continue_status, int thread_id)
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return res;
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}
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/* Fetch register(s) from gdbserver regcache data. */
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static void
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do_child_fetch_inferior_registers (win32_thread_info *th, int r)
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{
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char *context_offset = ((char *) &th->context) + mappings[r];
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long l;
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if (r == FCS_REGNUM)
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{
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l = *((long *) context_offset) & 0xffff;
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supply_register (r, (char *) &l);
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}
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else if (r == FOP_REGNUM)
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{
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l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1);
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supply_register (r, (char *) &l);
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}
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else
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supply_register (r, context_offset);
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}
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/* Fetch register(s) from the current thread context. */
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static void
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child_fetch_inferior_registers (int r)
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@ -414,14 +363,14 @@ child_fetch_inferior_registers (int r)
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child_fetch_inferior_registers (NUM_REGS);
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else
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for (regno = 0; regno < r; regno++)
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do_child_fetch_inferior_registers (th, regno);
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(*the_low_target.fetch_inferior_registers) (th, regno);
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}
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/* Get register from gdbserver regcache data. */
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static void
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do_child_store_inferior_registers (win32_thread_info *th, int r)
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{
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collect_register (r, ((char *) &th->context) + mappings[r]);
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collect_register (r, regptr (&th->context, r));
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}
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/* Store a new register value into the current thread context. We don't
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@ -438,6 +387,61 @@ child_store_inferior_registers (int r)
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do_child_store_inferior_registers (th, regno);
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}
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/* Map the Windows error number in ERROR to a locale-dependent error
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message string and return a pointer to it. Typically, the values
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for ERROR come from GetLastError.
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The string pointed to shall not be modified by the application,
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but may be overwritten by a subsequent call to strwinerror
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The strwinerror function does not change the current setting
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of GetLastError. */
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char *
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strwinerror (DWORD error)
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{
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static char buf[1024];
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TCHAR *msgbuf;
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DWORD lasterr = GetLastError ();
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DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM
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| FORMAT_MESSAGE_ALLOCATE_BUFFER,
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NULL,
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error,
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0, /* Default language */
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(LPVOID)&msgbuf,
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0,
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NULL);
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if (chars != 0)
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{
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/* If there is an \r\n appended, zap it. */
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if (chars >= 2
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&& msgbuf[chars - 2] == '\r'
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&& msgbuf[chars - 1] == '\n')
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{
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chars -= 2;
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msgbuf[chars] = 0;
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}
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if (chars > ((COUNTOF (buf)) - 1))
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{
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chars = COUNTOF (buf) - 1;
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msgbuf [chars] = 0;
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}
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#ifdef UNICODE
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wcstombs (buf, msgbuf, chars + 1);
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#else
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strncpy (buf, msgbuf, chars + 1);
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#endif
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LocalFree (msgbuf);
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}
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else
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sprintf (buf, "unknown win32 error (%ld)", error);
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SetLastError (lasterr);
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return buf;
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}
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/* Start a new process.
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PROGRAM is a path to the program to execute.
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ARGS is a standard NULL-terminated array of arguments,
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@ -451,21 +455,22 @@ win32_create_inferior (char *program, char **program_args)
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char real_path[MAXPATHLEN];
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char *orig_path, *new_path, *path_ptr;
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#endif
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char *winenv = NULL;
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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BOOL ret;
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DWORD flags;
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char *args;
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int argslen;
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int argc;
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PROCESS_INFORMATION pi;
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#ifndef __MINGW32CE__
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STARTUPINFO si = { sizeof (STARTUPINFO) };
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char *winenv = NULL;
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#else
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wchar_t *wargs, *wprogram;
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#endif
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if (!program)
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error ("No executable specified, specify executable to debug.\n");
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memset (&si, 0, sizeof (si));
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si.cb = sizeof (si);
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flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS;
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#ifndef USE_WIN32API
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@ -483,11 +488,11 @@ win32_create_inferior (char *program, char **program_args)
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program = real_path;
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#endif
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argslen = strlen (program) + 1;
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argslen = 1;
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for (argc = 1; program_args[argc]; argc++)
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argslen += strlen (program_args[argc]) + 1;
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args = alloca (argslen);
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strcpy (args, program);
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args[0] = '\0';
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for (argc = 1; program_args[argc]; argc++)
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{
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/* FIXME: Can we do better about quoting? How does Cygwin
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@ -495,17 +500,40 @@ win32_create_inferior (char *program, char **program_args)
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strcat (args, " ");
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strcat (args, program_args[argc]);
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}
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OUTMSG2 (("Command line is %s\n", args));
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OUTMSG2 (("Command line is \"%s\"\n", args));
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#ifdef CREATE_NEW_PROCESS_GROUP
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flags |= CREATE_NEW_PROCESS_GROUP;
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#endif
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ret = CreateProcess (0, args, /* command line */
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NULL, /* Security */
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#ifdef __MINGW32CE__
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to_back_slashes (program);
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wargs = alloca (argslen * sizeof (wchar_t));
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mbstowcs (wargs, args, argslen);
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wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t));
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mbstowcs (wprogram, program, strlen (program) + 1);
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ret = CreateProcessW (wprogram, /* image name */
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wargs, /* command line */
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NULL, /* security, not supported */
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NULL, /* thread, not supported */
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FALSE, /* inherit handles, not supported */
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flags, /* start flags */
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NULL, /* environment, not supported */
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NULL, /* current directory, not supported */
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NULL, /* start info, not supported */
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&pi); /* proc info */
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#else
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ret = CreateProcess (program, /* image name */
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args, /* command line */
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NULL, /* security */
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NULL, /* thread */
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TRUE, /* inherit handles */
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flags, /* start flags */
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winenv, NULL, /* current directory */
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&si, &pi);
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winenv, /* environment */
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NULL, /* current directory */
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&si, /* start info */
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&pi); /* proc info */
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#endif
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#ifndef USE_WIN32API
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if (orig_path)
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@ -514,15 +542,21 @@ win32_create_inferior (char *program, char **program_args)
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if (!ret)
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{
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error ("Error creating process %s, (error %d): %s\n", args,
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(int) GetLastError (), strerror (GetLastError ()));
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DWORD err = GetLastError ();
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error ("Error creating process \"%s%s\", (error %d): %s\n",
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program, args, (int) err, strwinerror (err));
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}
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else
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{
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OUTMSG2 (("Process created: %s\n", (char *) args));
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}
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#ifndef _WIN32_WCE
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/* On Windows CE this handle can't be closed. The OS reuses
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it in the debug events, while the 9x/NT versions of Windows
|
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probably use a DuplicateHandle'd one. */
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CloseHandle (pi.hThread);
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#endif
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|
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current_process_handle = pi.hProcess;
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current_process_id = pi.dwProcessId;
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|
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@ -539,16 +573,18 @@ static int
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win32_attach (unsigned long pid)
|
||||
{
|
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int res = 0;
|
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HMODULE kernel32 = LoadLibrary ("KERNEL32.DLL");
|
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winapi_DebugActiveProcessStop *DebugActiveProcessStop = NULL;
|
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winapi_DebugSetProcessKillOnExit *DebugSetProcessKillOnExit = NULL;
|
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DebugActiveProcessStop =
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(winapi_DebugActiveProcessStop *) GetProcAddress (kernel32,
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"DebugActiveProcessStop");
|
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DebugSetProcessKillOnExit =
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(winapi_DebugSetProcessKillOnExit *) GetProcAddress (kernel32,
|
||||
"DebugSetProcessKillOnExit");
|
||||
winapi_DebugSetProcessKillOnExit *DebugSetProcessKillOnExit = NULL;
|
||||
#ifdef _WIN32_WCE
|
||||
HMODULE dll = GetModuleHandle (_T("COREDLL.DLL"));
|
||||
#else
|
||||
HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL"));
|
||||
#endif
|
||||
DebugActiveProcessStop = (winapi_DebugActiveProcessStop *)
|
||||
GetProcAddress (dll, _T("DebugActiveProcessStop"));
|
||||
DebugSetProcessKillOnExit = (winapi_DebugSetProcessKillOnExit *)
|
||||
GetProcAddress (dll, _T("DebugSetProcessKillOnExit"));
|
||||
|
||||
res = DebugActiveProcess (pid) ? 1 : 0;
|
||||
|
||||
|
|
@ -571,8 +607,6 @@ win32_attach (unsigned long pid)
|
|||
if (res)
|
||||
do_initial_child_stuff (pid);
|
||||
|
||||
FreeLibrary (kernel32);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
|
|
@ -617,6 +651,8 @@ handle_output_debug_string (struct target_waitstatus *ourstatus)
|
|||
static void
|
||||
win32_kill (void)
|
||||
{
|
||||
win32_thread_info *current_thread;
|
||||
|
||||
if (current_process_handle == NULL)
|
||||
return;
|
||||
|
||||
|
|
@ -635,22 +671,32 @@ win32_kill (void)
|
|||
handle_output_debug_string (&our_status);
|
||||
}
|
||||
}
|
||||
|
||||
CloseHandle (current_process_handle);
|
||||
|
||||
current_thread = inferior_target_data (current_inferior);
|
||||
if (current_thread && current_thread->h)
|
||||
{
|
||||
/* This may fail in an attached process, so don't check. */
|
||||
(void) CloseHandle (current_thread->h);
|
||||
}
|
||||
}
|
||||
|
||||
/* Detach from all inferiors. */
|
||||
static void
|
||||
win32_detach (void)
|
||||
{
|
||||
HMODULE kernel32 = LoadLibrary ("KERNEL32.DLL");
|
||||
winapi_DebugActiveProcessStop *DebugActiveProcessStop = NULL;
|
||||
winapi_DebugSetProcessKillOnExit *DebugSetProcessKillOnExit = NULL;
|
||||
|
||||
DebugActiveProcessStop =
|
||||
(winapi_DebugActiveProcessStop *) GetProcAddress (kernel32,
|
||||
"DebugActiveProcessStop");
|
||||
DebugSetProcessKillOnExit =
|
||||
(winapi_DebugSetProcessKillOnExit *) GetProcAddress (kernel32,
|
||||
"DebugSetProcessKillOnExit");
|
||||
#ifdef _WIN32_WCE
|
||||
HMODULE dll = GetModuleHandle (_T("COREDLL.DLL"));
|
||||
#else
|
||||
HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL"));
|
||||
#endif
|
||||
DebugActiveProcessStop = (winapi_DebugActiveProcessStop *)
|
||||
GetProcAddress (dll, _T("DebugActiveProcessStop"));
|
||||
DebugSetProcessKillOnExit = (winapi_DebugSetProcessKillOnExit *)
|
||||
GetProcAddress (dll, _T("DebugSetProcessKillOnExit"));
|
||||
|
||||
if (DebugSetProcessKillOnExit != NULL)
|
||||
DebugSetProcessKillOnExit (FALSE);
|
||||
|
|
@ -659,8 +705,6 @@ win32_detach (void)
|
|||
DebugActiveProcessStop (current_process_id);
|
||||
else
|
||||
win32_kill ();
|
||||
|
||||
FreeLibrary (kernel32);
|
||||
}
|
||||
|
||||
/* Return 1 iff the thread with thread ID TID is alive. */
|
||||
|
|
@ -733,23 +777,21 @@ win32_resume (struct thread_resume *resume_info)
|
|||
if (th->context.ContextFlags)
|
||||
{
|
||||
if (debug_registers_changed)
|
||||
{
|
||||
th->context.Dr0 = dr[0];
|
||||
th->context.Dr1 = dr[1];
|
||||
th->context.Dr2 = dr[2];
|
||||
th->context.Dr3 = dr[3];
|
||||
/* th->context.Dr6 = dr[6];
|
||||
FIXME: should we set dr6 also ?? */
|
||||
th->context.Dr7 = dr[7];
|
||||
}
|
||||
if (the_low_target.load_debug_registers != NULL)
|
||||
(*the_low_target.load_debug_registers) (th);
|
||||
|
||||
/* Move register values from the inferior into the thread
|
||||
context structure. */
|
||||
regcache_invalidate ();
|
||||
|
||||
if (step)
|
||||
th->context.EFlags |= FLAG_TRACE_BIT;
|
||||
|
||||
{
|
||||
if (the_low_target.single_step != NULL)
|
||||
(*the_low_target.single_step) (th);
|
||||
else
|
||||
error ("Single stepping is not supported "
|
||||
"in this configuration.\n");
|
||||
}
|
||||
SetThreadContext (th->h, &th->context);
|
||||
th->context.ContextFlags = 0;
|
||||
}
|
||||
|
|
@ -825,6 +867,11 @@ handle_exception (struct target_waitstatus *ourstatus)
|
|||
case EXCEPTION_BREAKPOINT:
|
||||
OUTMSG2 (("EXCEPTION_BREAKPOINT"));
|
||||
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
||||
#ifdef _WIN32_WCE
|
||||
/* Remove the initial breakpoint. */
|
||||
check_breakpoints ((CORE_ADDR) (long) current_event
|
||||
.u.Exception.ExceptionRecord.ExceptionAddress);
|
||||
#endif
|
||||
break;
|
||||
case DBG_CONTROL_C:
|
||||
OUTMSG2 (("DBG_CONTROL_C"));
|
||||
|
|
@ -934,6 +981,14 @@ in:
|
|||
current_event.u.CreateProcessInfo.hThread);
|
||||
|
||||
retval = ourstatus->value.related_pid = current_event.dwThreadId;
|
||||
#ifdef _WIN32_WCE
|
||||
/* Windows CE doesn't set the initial breakpoint automatically
|
||||
like the desktop versions of Windows do. We add it explicitly
|
||||
here. It will be removed as soon as it is hit. */
|
||||
set_breakpoint_at ((CORE_ADDR) (long) current_event.u
|
||||
.CreateProcessInfo.lpStartAddress,
|
||||
delete_breakpoint_at);
|
||||
#endif
|
||||
break;
|
||||
|
||||
case EXIT_PROCESS_DEBUG_EVENT:
|
||||
|
|
@ -1037,8 +1092,13 @@ win32_wait (char *status)
|
|||
}
|
||||
else if (our_status.kind == TARGET_WAITKIND_STOPPED)
|
||||
{
|
||||
#ifndef __MINGW32CE__
|
||||
OUTMSG2 (("Child Stopped with signal = %x \n",
|
||||
WSTOPSIG (our_status.value.sig)));
|
||||
#else
|
||||
OUTMSG2 (("Child Stopped with signal = %x \n",
|
||||
our_status.value.sig));
|
||||
#endif
|
||||
|
||||
*status = 'T';
|
||||
|
||||
|
|
@ -1082,7 +1142,7 @@ win32_store_inferior_registers (int regno)
|
|||
static int
|
||||
win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
|
||||
{
|
||||
return child_xfer_memory (memaddr, myaddr, len, 0, 0) != len;
|
||||
return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len;
|
||||
}
|
||||
|
||||
/* Write memory to the inferior process. This should generally be
|
||||
|
|
@ -1099,7 +1159,7 @@ win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
|
|||
static const char *
|
||||
win32_arch_string (void)
|
||||
{
|
||||
return "i386";
|
||||
return the_low_target.arch_string;
|
||||
}
|
||||
|
||||
static struct target_ops win32_target_ops = {
|
||||
|
|
@ -1131,6 +1191,8 @@ void
|
|||
initialize_low (void)
|
||||
{
|
||||
set_target_ops (&win32_target_ops);
|
||||
|
||||
if (the_low_target.breakpoint != NULL)
|
||||
set_breakpoint_data (the_low_target.breakpoint,
|
||||
the_low_target.breakpoint_len);
|
||||
init_registers ();
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue