import gdb-1999-12-21 snapshot
This commit is contained in:
Jason Molenda
parent
858f4ff6ff
commit
d3a0947552
1 changed files with 64 additions and 34 deletions
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@ -165,8 +165,11 @@ static const int mappings[] =
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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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};
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#undef context_offset
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/* This vector maps the target's idea of an exception (extracted
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from the DEBUG_EVENT structure) to GDB's idea. */
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@ -297,7 +300,7 @@ do_child_fetch_inferior_registers (int r)
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supply_register (r, (char *) &l);
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}
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else if (r >= 0)
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supply_register (r, ((char *) ¤t_thread->context) + mappings[r]);
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supply_register (r, context_offset);
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else
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{
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for (r = 0; r < NUM_REGS; r++)
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@ -529,11 +532,12 @@ handle_output_debug_string (struct target_waitstatus *ourstatus)
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|| !s || !*s)
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return gotasig;
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if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1))
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if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
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{
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if (strncmp (s, "cYg", 3))
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if (strncmp (s, "cYg", 3) != 0)
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warning (s);
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}
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else
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{
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char *p;
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int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
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@ -592,9 +596,11 @@ handle_exception (struct target_waitstatus *ourstatus)
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default:
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/* This may be a structured exception handling exception. In
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that case, we want to let the program try to handle it, and
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only break if we see the exception a second time. */
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only break if we see the exception a second time.
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if (current_event.u.Exception.dwFirstChance)
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return 0;
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*/
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printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
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current_event.u.Exception.ExceptionRecord.ExceptionCode,
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@ -1017,6 +1023,9 @@ child_create_inferior (exec_file, allargs, env)
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get_child_debug_event (inferior_pid, &dummy, &event_code, &ret);
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while (event_code != EXCEPTION_DEBUG_EVENT);
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SymSetOptions (SYMOPT_DEFERRED_LOADS);
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SymInitialize (current_process_handle, NULL, TRUE);
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proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
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}
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@ -1170,6 +1179,7 @@ init_child_ops (void)
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child_ops.to_can_run = child_can_run;
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child_ops.to_notice_signals = 0;
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child_ops.to_thread_alive = win32_child_thread_alive;
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child_ops.to_pid_to_str = cygwin_pid_to_str;
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child_ops.to_stop = child_stop;
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child_ops.to_stratum = process_stratum;
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child_ops.DONT_USE = 0;
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@ -1255,40 +1265,60 @@ cygwin_pid_to_str (int pid)
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sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
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return buf;
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}
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#ifdef NOTYET
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CORE_ADDR
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win32_read_fp ()
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static LPVOID __stdcall
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sfta(HANDLE h, DWORD d)
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{
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STACKFRAME *sf = current_thread->sf;
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memset (&sf, 0, sizeof(sf));
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sf->AddrPC.Offset = current_thread->context.Eip;
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sf->AddrPC.Mode = AddrModeFlat;
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sf->AddrStack.Offset = current_thread->context.Esp;
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sf->AddrStack.Mode = AddrModeFlat;
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sf->AddrFrame.Offset = current_thread->context.Ebp;
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if (!StackWalk (IMAGE_FILE_MACHINE_I386, current_process_handle,
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current->thread->h, sf, NULL, NULL,
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SymFunctionTableAccess, SymGetModuleBase, NULL))
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return NULL;
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return (CORE_ADDR) sf.AddrFrame.Offset;
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return NULL;
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}
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static DWORD __stdcall
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sgmb(HANDLE h, DWORD d)
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{
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#if 0
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return 4;
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#else
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return SymGetModuleBase (h, d) ?: 4;
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#endif
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}
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CORE_ADDR
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child_frame_chain(struct frame_info *thisframe)
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child_frame_chain(struct frame_info *f)
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{
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STACKFRAME *sf = current->thread->sf;
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#if 0
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sf.AddrPC.Offset = thisframe->pc;
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sf.AddrPC.Mode = AddrModeFlat;
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sf.AddrStack.Offset = thisframe->;
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sf.AddrStack.Mode = AddrModeFlat;
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sf.AddrFrame.Offset = cx->Ebp;
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#endif
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STACKFRAME *sf = (STACKFRAME *) f->extra_info;
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if (!StackWalk (IMAGE_FILE_MACHINE_I386, current_process_handle,
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current->thread->h, &sf, NULL, NULL,
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SymFunctionTableAccess, SymGetModuleBase, NULL))
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return NULL;
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return (CORE_ADDR) sf->AddrFrame.Offset;
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current_thread->h, sf, NULL, NULL, SymFunctionTableAccess, sgmb, NULL) ||
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!sf->AddrReturn.Offset)
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return 0;
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return sf->AddrFrame.Offset;
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}
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CORE_ADDR
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child_frame_saved_pc(struct frame_info *f)
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{
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STACKFRAME *sf = (STACKFRAME *) f->extra_info;
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return sf->AddrReturn.Offset;
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}
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void
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child_init_frame(int leaf, struct frame_info *f)
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{
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STACKFRAME *sf;
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if (f->next && f->next->extra_info)
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f->extra_info = f->next->extra_info;
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else if (f->prev && f->prev->extra_info)
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f->extra_info = f->prev->extra_info;
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else
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{
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sf = (STACKFRAME *) frame_obstack_alloc (sizeof (*sf));
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f->extra_info = (struct frame_extra_info *) sf;
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memset (sf, 0, sizeof(*sf));
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sf->AddrPC.Offset = f->pc;
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sf->AddrPC.Mode = AddrModeFlat;
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sf->AddrStack.Offset = current_thread->context.Esp;
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sf->AddrStack.Mode = AddrModeFlat;
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sf->AddrFrame.Offset = f->frame;
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sf->AddrFrame.Mode = AddrModeFlat;
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}
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}
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#endif
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