2002-02-18 Pierre Muller <muller@ics.u-strasbg.fr>
* win32-nat.c (display_selector): New function. Displays information about the information returned by GetThreadSelectorEntry API function. (display_selectors): New function. Displays the infomation of the selector given as argument, or of CS, DS ans FS selectors if no argument is given. ( _initialize_inftarg): Add "w32" as info prefix command. Add "info w32 selector" as command calling display_selectors.
This commit is contained in:
Pierre Muller
parent
e41e6bbfeb
commit
c1748f97ec
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@ -1,3 +1,13 @@
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2002-02-18 Pierre Muller <muller@ics.u-strasbg.fr>
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* win32-nat.c (display_selector): New function. Displays information
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about the information returned by GetThreadSelectorEntry API function.
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(display_selectors): New function. Displays the infomation of
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the selector given as argument, or of CS, DS ans FS selectors
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if no argument is given.
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( _initialize_inftarg): Add "w32" as info prefix command.
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Add "info w32 selector" as command calling display_selectors.
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2002-02-19 Pierre Muller <muller@ics.u-strasbg.fr>
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* i386-tdep.c (get_longjmp_target): Fix compilation failure
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128
gdb/win32-nat.c
128
gdb/win32-nat.c
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@ -820,6 +820,126 @@ handle_output_debug_string (struct target_waitstatus *ourstatus)
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return gotasig;
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}
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static int
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display_selector (HANDLE thread, DWORD sel)
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{
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LDT_ENTRY info;
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if (GetThreadSelectorEntry (thread, sel, &info))
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{
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int base, limit;
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printf_filtered ("0x%03lx: ", sel);
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if (!info.HighWord.Bits.Pres)
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{
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puts_filtered ("Segment not present\n");
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return 0;
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}
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base = (info.HighWord.Bits.BaseHi << 24) +
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(info.HighWord.Bits.BaseMid << 16)
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+ info.BaseLow;
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limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
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if (info.HighWord.Bits.Granularity)
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limit = (limit << 12) | 0xfff;
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printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
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if (info.HighWord.Bits.Default_Big)
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puts_filtered(" 32-bit ");
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else
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puts_filtered(" 16-bit ");
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switch ((info.HighWord.Bits.Type & 0xf) >> 1)
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{
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case 0:
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puts_filtered ("Data (Read-Only, Exp-up");
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break;
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case 1:
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puts_filtered ("Data (Read/Write, Exp-up");
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break;
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case 2:
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puts_filtered ("Unused segment (");
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break;
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case 3:
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puts_filtered ("Data (Read/Write, Exp-down");
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break;
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case 4:
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puts_filtered ("Code (Exec-Only, N.Conf");
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break;
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case 5:
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puts_filtered ("Code (Exec/Read, N.Conf");
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break;
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case 6:
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puts_filtered ("Code (Exec-Only, Conf");
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break;
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case 7:
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puts_filtered ("Code (Exec/Read, Conf");
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break;
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default:
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printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type);
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}
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if ((info.HighWord.Bits.Type & 0x1) == 0)
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puts_filtered(", N.Acc");
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puts_filtered (")\n");
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if ((info.HighWord.Bits.Type & 0x10) == 0)
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puts_filtered("System selector ");
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printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl);
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if (info.HighWord.Bits.Granularity)
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puts_filtered ("Page granular.\n");
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else
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puts_filtered ("Byte granular.\n");
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return 1;
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}
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else
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{
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printf_filtered ("Invalid selector 0x%lx.\n",sel);
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return 0;
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}
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}
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static void
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display_selectors (char * args, int from_tty)
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{
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if (!current_thread)
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{
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puts_filtered ("Impossible to display selectors now.\n");
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return;
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}
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if (!args)
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{
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puts_filtered ("Selector $cs\n");
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display_selector (current_thread->h,
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current_thread->context.SegCs);
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puts_filtered ("Selector $ds\n");
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display_selector (current_thread->h,
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current_thread->context.SegDs);
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puts_filtered ("Selector $es\n");
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display_selector (current_thread->h,
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current_thread->context.SegEs);
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puts_filtered ("Selector $ss\n");
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display_selector (current_thread->h,
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current_thread->context.SegSs);
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puts_filtered ("Selector $fs\n");
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display_selector (current_thread->h,
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current_thread->context.SegFs);
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puts_filtered ("Selector $gs\n");
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display_selector (current_thread->h,
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current_thread->context.SegGs);
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}
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else
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{
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int sel;
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sel = parse_and_eval_long (args);
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printf_filtered ("Selector \"%s\"\n",args);
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display_selector (current_thread->h, sel);
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}
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}
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static struct cmd_list_element *info_w32_cmdlist = NULL;
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static void
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info_w32_command (char *args, int from_tty)
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{
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help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
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}
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#define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \
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printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
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(DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)
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@ -1758,6 +1878,14 @@ _initialize_inftarg (void)
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add_info ("dll", info_dll_command, "Status of loaded DLLs.");
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add_info_alias ("sharedlibrary", "dll", 1);
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add_prefix_cmd ("w32", class_info, info_w32_command,
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"Print information specific to Win32 debugging.",
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&info_w32_cmdlist, "info w32 ", 0, &infolist);
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add_cmd ("selector", class_info, display_selectors,
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"Display selectors infos.",
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&info_w32_cmdlist);
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add_target (&child_ops);
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}
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@ -820,6 +820,126 @@ handle_output_debug_string (struct target_waitstatus *ourstatus)
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return gotasig;
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}
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static int
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display_selector (HANDLE thread, DWORD sel)
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{
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LDT_ENTRY info;
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if (GetThreadSelectorEntry (thread, sel, &info))
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{
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int base, limit;
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printf_filtered ("0x%03lx: ", sel);
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if (!info.HighWord.Bits.Pres)
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{
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puts_filtered ("Segment not present\n");
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return 0;
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}
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base = (info.HighWord.Bits.BaseHi << 24) +
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(info.HighWord.Bits.BaseMid << 16)
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+ info.BaseLow;
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limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
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if (info.HighWord.Bits.Granularity)
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limit = (limit << 12) | 0xfff;
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printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
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if (info.HighWord.Bits.Default_Big)
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puts_filtered(" 32-bit ");
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else
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puts_filtered(" 16-bit ");
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switch ((info.HighWord.Bits.Type & 0xf) >> 1)
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{
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case 0:
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puts_filtered ("Data (Read-Only, Exp-up");
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break;
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case 1:
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puts_filtered ("Data (Read/Write, Exp-up");
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break;
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case 2:
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puts_filtered ("Unused segment (");
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break;
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case 3:
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puts_filtered ("Data (Read/Write, Exp-down");
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break;
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case 4:
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puts_filtered ("Code (Exec-Only, N.Conf");
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break;
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case 5:
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puts_filtered ("Code (Exec/Read, N.Conf");
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break;
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case 6:
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puts_filtered ("Code (Exec-Only, Conf");
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break;
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case 7:
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puts_filtered ("Code (Exec/Read, Conf");
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break;
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default:
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printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type);
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}
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if ((info.HighWord.Bits.Type & 0x1) == 0)
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puts_filtered(", N.Acc");
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puts_filtered (")\n");
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if ((info.HighWord.Bits.Type & 0x10) == 0)
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puts_filtered("System selector ");
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printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl);
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if (info.HighWord.Bits.Granularity)
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puts_filtered ("Page granular.\n");
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else
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puts_filtered ("Byte granular.\n");
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return 1;
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}
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else
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{
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printf_filtered ("Invalid selector 0x%lx.\n",sel);
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return 0;
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}
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}
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static void
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display_selectors (char * args, int from_tty)
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{
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if (!current_thread)
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{
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puts_filtered ("Impossible to display selectors now.\n");
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return;
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}
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if (!args)
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{
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puts_filtered ("Selector $cs\n");
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display_selector (current_thread->h,
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current_thread->context.SegCs);
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puts_filtered ("Selector $ds\n");
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display_selector (current_thread->h,
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current_thread->context.SegDs);
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puts_filtered ("Selector $es\n");
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display_selector (current_thread->h,
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current_thread->context.SegEs);
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puts_filtered ("Selector $ss\n");
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display_selector (current_thread->h,
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current_thread->context.SegSs);
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puts_filtered ("Selector $fs\n");
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display_selector (current_thread->h,
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current_thread->context.SegFs);
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puts_filtered ("Selector $gs\n");
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display_selector (current_thread->h,
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current_thread->context.SegGs);
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}
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else
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{
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int sel;
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sel = parse_and_eval_long (args);
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printf_filtered ("Selector \"%s\"\n",args);
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display_selector (current_thread->h, sel);
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}
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}
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static struct cmd_list_element *info_w32_cmdlist = NULL;
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static void
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info_w32_command (char *args, int from_tty)
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{
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help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
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}
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#define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \
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printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
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(DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)
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@ -1758,6 +1878,14 @@ _initialize_inftarg (void)
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add_info ("dll", info_dll_command, "Status of loaded DLLs.");
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add_info_alias ("sharedlibrary", "dll", 1);
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add_prefix_cmd ("w32", class_info, info_w32_command,
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"Print information specific to Win32 debugging.",
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&info_w32_cmdlist, "info w32 ", 0, &infolist);
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add_cmd ("selector", class_info, display_selectors,
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"Display selectors infos.",
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&info_w32_cmdlist);
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add_target (&child_ops);
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}
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