X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fwindows-tdep.c;h=b6e5b9ff7c2662a55abbff2c7a8d363b172a9297;hb=735fc2ca685b55bf1debbfcea6d2ab544e58a530;hp=1a4bae8cbf060c13360601f32095c12207ba534e;hpb=bfb87e33ab2006cc3ab23d18fd921425223337c5;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/windows-tdep.c b/gdb/windows-tdep.c
index 1a4bae8cbf..b6e5b9ff7c 100644
--- a/gdb/windows-tdep.c
+++ b/gdb/windows-tdep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
@@ -16,26 +16,634 @@
along with this program. If not, see . */
#include "defs.h"
-#include "win32-tdep.h"
+#include "windows-tdep.h"
#include "gdb_obstack.h"
#include "xml-support.h"
+#include "gdbarch.h"
+#include "target.h"
+#include "value.h"
+#include "inferior.h"
+#include "command.h"
+#include "gdbcmd.h"
+#include "gdbthread.h"
+#include "objfiles.h"
+#include "symfile.h"
+#include "coff-pe-read.h"
+#include "gdb_bfd.h"
+#include "complaints.h"
+#include "solib.h"
+#include "solib-target.h"
+#include "gdbcore.h"
+
+/* Windows signal numbers differ between MinGW flavors and between
+ those and Cygwin. The below enumeration was gleaned from the
+ respective headers; the ones marked with MinGW64/Cygwin are defined
+ only by MinGW64 and Cygwin, not by mingw.org's MinGW. FIXME: We
+ should really have distinct MinGW vs Cygwin OSABIs, and two
+ separate enums, selected at runtime. */
+
+enum
+ {
+ WINDOWS_SIGHUP = 1, /* MinGW64/Cygwin */
+ WINDOWS_SIGINT = 2,
+ WINDOWS_SIGQUIT = 3, /* MinGW64/Cygwin */
+ WINDOWS_SIGILL = 4,
+ WINDOWS_SIGTRAP = 5, /* MinGW64/Cygwin */
+#ifdef __CYGWIN__
+ WINDOWS_SIGABRT = 6,
+#else
+ WINDOWS_SIGIOT = 6, /* MinGW64 */
+#endif
+ WINDOWS_SIGEMT = 7, /* MinGW64/Cygwin */
+ WINDOWS_SIGFPE = 8,
+ WINDOWS_SIGKILL = 9, /* MinGW64/Cygwin */
+ WINDOWS_SIGBUS = 10, /* MinGW64/Cygwin */
+ WINDOWS_SIGSEGV = 11,
+ WINDOWS_SIGSYS = 12, /* MinGW64/Cygwin */
+ WINDOWS_SIGPIPE = 13,/* MinGW64/Cygwin */
+ WINDOWS_SIGALRM = 14,/* MinGW64/Cygwin */
+ WINDOWS_SIGTERM = 15,
+#ifdef __CYGWIN__
+ WINDOWS_SIGURG = 16,
+ WINDOWS_SIGSTOP = 17,
+ WINDOWS_SIGTSTP = 18,
+ WINDOWS_SIGCONT = 19,
+ WINDOWS_SIGCHLD = 20,
+ WINDOWS_SIGTTIN = 21,
+ WINDOWS_SIGTTOU = 22,
+ WINDOWS_SIGIO = 23,
+ WINDOWS_SIGXCPU = 24,
+ WINDOWS_SIGXFSZ = 25,
+ WINDOWS_SIGVTALRM = 26,
+ WINDOWS_SIGPROF = 27,
+ WINDOWS_SIGWINCH = 28,
+ WINDOWS_SIGLOST = 29,
+ WINDOWS_SIGUSR1 = 30,
+ WINDOWS_SIGUSR2 = 31
+#else
+ WINDOWS_SIGBREAK = 21,
+ WINDOWS_SIGABRT = 22
+#endif
+ };
+
+struct cmd_list_element *info_w32_cmdlist;
+
+typedef struct thread_information_block_32
+ {
+ uint32_t current_seh; /* %fs:0x0000 */
+ uint32_t current_top_of_stack; /* %fs:0x0004 */
+ uint32_t current_bottom_of_stack; /* %fs:0x0008 */
+ uint32_t sub_system_tib; /* %fs:0x000c */
+ uint32_t fiber_data; /* %fs:0x0010 */
+ uint32_t arbitrary_data_slot; /* %fs:0x0014 */
+ uint32_t linear_address_tib; /* %fs:0x0018 */
+ uint32_t environment_pointer; /* %fs:0x001c */
+ uint32_t process_id; /* %fs:0x0020 */
+ uint32_t current_thread_id; /* %fs:0x0024 */
+ uint32_t active_rpc_handle; /* %fs:0x0028 */
+ uint32_t thread_local_storage; /* %fs:0x002c */
+ uint32_t process_environment_block; /* %fs:0x0030 */
+ uint32_t last_error_number; /* %fs:0x0034 */
+ }
+thread_information_32;
+
+typedef struct thread_information_block_64
+ {
+ uint64_t current_seh; /* %gs:0x0000 */
+ uint64_t current_top_of_stack; /* %gs:0x0008 */
+ uint64_t current_bottom_of_stack; /* %gs:0x0010 */
+ uint64_t sub_system_tib; /* %gs:0x0018 */
+ uint64_t fiber_data; /* %gs:0x0020 */
+ uint64_t arbitrary_data_slot; /* %gs:0x0028 */
+ uint64_t linear_address_tib; /* %gs:0x0030 */
+ uint64_t environment_pointer; /* %gs:0x0038 */
+ uint64_t process_id; /* %gs:0x0040 */
+ uint64_t current_thread_id; /* %gs:0x0048 */
+ uint64_t active_rpc_handle; /* %gs:0x0050 */
+ uint64_t thread_local_storage; /* %gs:0x0058 */
+ uint64_t process_environment_block; /* %gs:0x0060 */
+ uint64_t last_error_number; /* %gs:0x0068 */
+ }
+thread_information_64;
+
+
+static const char* TIB_NAME[] =
+ {
+ " current_seh ", /* %fs:0x0000 */
+ " current_top_of_stack ", /* %fs:0x0004 */
+ " current_bottom_of_stack ", /* %fs:0x0008 */
+ " sub_system_tib ", /* %fs:0x000c */
+ " fiber_data ", /* %fs:0x0010 */
+ " arbitrary_data_slot ", /* %fs:0x0014 */
+ " linear_address_tib ", /* %fs:0x0018 */
+ " environment_pointer ", /* %fs:0x001c */
+ " process_id ", /* %fs:0x0020 */
+ " current_thread_id ", /* %fs:0x0024 */
+ " active_rpc_handle ", /* %fs:0x0028 */
+ " thread_local_storage ", /* %fs:0x002c */
+ " process_environment_block ", /* %fs:0x0030 */
+ " last_error_number " /* %fs:0x0034 */
+ };
+
+static const int MAX_TIB32 =
+ sizeof (thread_information_32) / sizeof (uint32_t);
+static const int MAX_TIB64 =
+ sizeof (thread_information_64) / sizeof (uint64_t);
+static const int FULL_TIB_SIZE = 0x1000;
+
+static bool maint_display_all_tib = false;
+
+/* Define Thread Local Base pointer type. */
+
+static struct type *
+windows_get_tlb_type (struct gdbarch *gdbarch)
+{
+ static struct gdbarch *last_gdbarch = NULL;
+ static struct type *last_tlb_type = NULL;
+ struct type *dword_ptr_type, *dword32_type, *void_ptr_type;
+ struct type *peb_ldr_type, *peb_ldr_ptr_type;
+ struct type *peb_type, *peb_ptr_type, *list_type;
+ struct type *module_list_ptr_type;
+ struct type *tib_type, *seh_type, *tib_ptr_type, *seh_ptr_type;
+
+ /* Do not rebuild type if same gdbarch as last time. */
+ if (last_tlb_type && last_gdbarch == gdbarch)
+ return last_tlb_type;
+
+ dword_ptr_type = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
+ 1, "DWORD_PTR");
+ dword32_type = arch_integer_type (gdbarch, 32,
+ 1, "DWORD32");
+ void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
+
+ /* list entry */
+
+ list_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (list_type) = xstrdup ("list");
+
+ module_list_ptr_type = void_ptr_type;
+
+ append_composite_type_field (list_type, "forward_list",
+ module_list_ptr_type);
+ append_composite_type_field (list_type, "backward_list",
+ module_list_ptr_type);
+
+ /* Structured Exception Handler */
+
+ seh_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (seh_type) = xstrdup ("seh");
+
+ seh_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (seh_ptr_type) = seh_type;
+
+ append_composite_type_field (seh_type, "next_seh", seh_ptr_type);
+ append_composite_type_field (seh_type, "handler",
+ builtin_type (gdbarch)->builtin_func_ptr);
+
+ /* struct _PEB_LDR_DATA */
+ peb_ldr_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (peb_ldr_type) = xstrdup ("peb_ldr_data");
+
+ append_composite_type_field (peb_ldr_type, "length", dword32_type);
+ append_composite_type_field (peb_ldr_type, "initialized", dword32_type);
+ append_composite_type_field (peb_ldr_type, "ss_handle", void_ptr_type);
+ append_composite_type_field (peb_ldr_type, "in_load_order", list_type);
+ append_composite_type_field (peb_ldr_type, "in_memory_order", list_type);
+ append_composite_type_field (peb_ldr_type, "in_init_order", list_type);
+ append_composite_type_field (peb_ldr_type, "entry_in_progress",
+ void_ptr_type);
+ peb_ldr_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (peb_ldr_ptr_type) = peb_ldr_type;
+
+
+ /* struct process environment block */
+ peb_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (peb_type) = xstrdup ("peb");
+
+ /* First bytes contain several flags. */
+ append_composite_type_field (peb_type, "flags", dword_ptr_type);
+ append_composite_type_field (peb_type, "mutant", void_ptr_type);
+ append_composite_type_field (peb_type, "image_base_address", void_ptr_type);
+ append_composite_type_field (peb_type, "ldr", peb_ldr_ptr_type);
+ append_composite_type_field (peb_type, "process_parameters", void_ptr_type);
+ append_composite_type_field (peb_type, "sub_system_data", void_ptr_type);
+ append_composite_type_field (peb_type, "process_heap", void_ptr_type);
+ append_composite_type_field (peb_type, "fast_peb_lock", void_ptr_type);
+ peb_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (peb_ptr_type) = peb_type;
+
+
+ /* struct thread information block */
+ tib_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (tib_type) = xstrdup ("tib");
+
+ /* uint32_t current_seh; %fs:0x0000 */
+ append_composite_type_field (tib_type, "current_seh", seh_ptr_type);
+ /* uint32_t current_top_of_stack; %fs:0x0004 */
+ append_composite_type_field (tib_type, "current_top_of_stack",
+ void_ptr_type);
+ /* uint32_t current_bottom_of_stack; %fs:0x0008 */
+ append_composite_type_field (tib_type, "current_bottom_of_stack",
+ void_ptr_type);
+ /* uint32_t sub_system_tib; %fs:0x000c */
+ append_composite_type_field (tib_type, "sub_system_tib", void_ptr_type);
+
+ /* uint32_t fiber_data; %fs:0x0010 */
+ append_composite_type_field (tib_type, "fiber_data", void_ptr_type);
+ /* uint32_t arbitrary_data_slot; %fs:0x0014 */
+ append_composite_type_field (tib_type, "arbitrary_data_slot", void_ptr_type);
+ /* uint32_t linear_address_tib; %fs:0x0018 */
+ append_composite_type_field (tib_type, "linear_address_tib", void_ptr_type);
+ /* uint32_t environment_pointer; %fs:0x001c */
+ append_composite_type_field (tib_type, "environment_pointer", void_ptr_type);
+ /* uint32_t process_id; %fs:0x0020 */
+ append_composite_type_field (tib_type, "process_id", dword_ptr_type);
+ /* uint32_t current_thread_id; %fs:0x0024 */
+ append_composite_type_field (tib_type, "thread_id", dword_ptr_type);
+ /* uint32_t active_rpc_handle; %fs:0x0028 */
+ append_composite_type_field (tib_type, "active_rpc_handle", dword_ptr_type);
+ /* uint32_t thread_local_storage; %fs:0x002c */
+ append_composite_type_field (tib_type, "thread_local_storage",
+ void_ptr_type);
+ /* uint32_t process_environment_block; %fs:0x0030 */
+ append_composite_type_field (tib_type, "process_environment_block",
+ peb_ptr_type);
+ /* uint32_t last_error_number; %fs:0x0034 */
+ append_composite_type_field (tib_type, "last_error_number", dword_ptr_type);
+
+ tib_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (tib_ptr_type) = tib_type;
+
+ last_tlb_type = tib_ptr_type;
+ last_gdbarch = gdbarch;
+
+ return tib_ptr_type;
+}
+
+/* The $_tlb convenience variable is a bit special. We don't know
+ for sure the type of the value until we actually have a chance to
+ fetch the data. The type can change depending on gdbarch, so it is
+ also dependent on which thread you have selected. */
+
+/* This function implements the lval_computed support for reading a
+ $_tlb value. */
+
+static void
+tlb_value_read (struct value *val)
+{
+ CORE_ADDR tlb;
+ struct type *type = check_typedef (value_type (val));
+
+ if (!target_get_tib_address (inferior_ptid, &tlb))
+ error (_("Unable to read tlb"));
+ store_typed_address (value_contents_raw (val), type, tlb);
+}
+
+/* This function implements the lval_computed support for writing a
+ $_tlb value. */
+
+static void
+tlb_value_write (struct value *v, struct value *fromval)
+{
+ error (_("Impossible to change the Thread Local Base"));
+}
+
+static const struct lval_funcs tlb_value_funcs =
+ {
+ tlb_value_read,
+ tlb_value_write
+ };
+
+
+/* Return a new value with the correct type for the tlb object of
+ the current thread using architecture GDBARCH. Return a void value
+ if there's no object available. */
+
+static struct value *
+tlb_make_value (struct gdbarch *gdbarch, struct internalvar *var, void *ignore)
+{
+ if (target_has_stack && inferior_ptid != null_ptid)
+ {
+ struct type *type = windows_get_tlb_type (gdbarch);
+ return allocate_computed_value (type, &tlb_value_funcs, NULL);
+ }
+
+ return allocate_value (builtin_type (gdbarch)->builtin_void);
+}
+
+
+/* Display thread information block of a given thread. */
+
+static int
+display_one_tib (ptid_t ptid)
+{
+ gdb_byte *tib = NULL;
+ gdb_byte *index;
+ CORE_ADDR thread_local_base;
+ ULONGEST i, val, max, max_name, size, tib_size;
+ ULONGEST sizeof_ptr = gdbarch_ptr_bit (target_gdbarch ());
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
+
+ if (sizeof_ptr == 64)
+ {
+ size = sizeof (uint64_t);
+ tib_size = sizeof (thread_information_64);
+ max = MAX_TIB64;
+ }
+ else
+ {
+ size = sizeof (uint32_t);
+ tib_size = sizeof (thread_information_32);
+ max = MAX_TIB32;
+ }
+
+ max_name = max;
+
+ if (maint_display_all_tib)
+ {
+ tib_size = FULL_TIB_SIZE;
+ max = tib_size / size;
+ }
+
+ tib = (gdb_byte *) alloca (tib_size);
+
+ if (target_get_tib_address (ptid, &thread_local_base) == 0)
+ {
+ printf_filtered (_("Unable to get thread local base for %s\n"),
+ target_pid_to_str (ptid).c_str ());
+ return -1;
+ }
+
+ if (target_read (current_top_target (), TARGET_OBJECT_MEMORY,
+ NULL, tib, thread_local_base, tib_size) != tib_size)
+ {
+ printf_filtered (_("Unable to read thread information "
+ "block for %s at address %s\n"),
+ target_pid_to_str (ptid).c_str (),
+ paddress (target_gdbarch (), thread_local_base));
+ return -1;
+ }
+
+ printf_filtered (_("Thread Information Block %s at %s\n"),
+ target_pid_to_str (ptid).c_str (),
+ paddress (target_gdbarch (), thread_local_base));
+
+ index = (gdb_byte *) tib;
+
+ /* All fields have the size of a pointer, this allows to iterate
+ using the same for loop for both layouts. */
+ for (i = 0; i < max; i++)
+ {
+ val = extract_unsigned_integer (index, size, byte_order);
+ if (i < max_name)
+ printf_filtered (_("%s is 0x%s\n"), TIB_NAME[i], phex (val, size));
+ else if (val != 0)
+ printf_filtered (_("TIB[0x%s] is 0x%s\n"), phex (i * size, 2),
+ phex (val, size));
+ index += size;
+ }
+ return 1;
+}
+
+/* Display thread information block of the current thread. */
+
+static void
+display_tib (const char * args, int from_tty)
+{
+ if (inferior_ptid != null_ptid)
+ display_one_tib (inferior_ptid);
+}
void
-win32_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
- struct obstack *obstack)
+windows_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
+ struct gdbarch *gdbarch, struct obstack *obstack)
{
- char *p;
+ CORE_ADDR text_offset;
+
obstack_grow_str (obstack, "");
}
+/* Implement the "iterate_over_objfiles_in_search_order" gdbarch
+ method. It searches all objfiles, starting with CURRENT_OBJFILE
+ first (if not NULL).
+
+ On Windows, the system behaves a little differently when two
+ objfiles each define a global symbol using the same name, compared
+ to other platforms such as GNU/Linux for instance. On GNU/Linux,
+ all instances of the symbol effectively get merged into a single
+ one, but on Windows, they remain distinct.
+ As a result, it usually makes sense to start global symbol searches
+ with the current objfile before expanding it to all other objfiles.
+ This helps for instance when a user debugs some code in a DLL that
+ refers to a global variable defined inside that DLL. When trying
+ to print the value of that global variable, it would be unhelpful
+ to print the value of another global variable defined with the same
+ name, but in a different DLL. */
+
+static void
+windows_iterate_over_objfiles_in_search_order
+ (struct gdbarch *gdbarch,
+ iterate_over_objfiles_in_search_order_cb_ftype *cb,
+ void *cb_data, struct objfile *current_objfile)
+{
+ int stop;
+
+ if (current_objfile)
+ {
+ stop = cb (current_objfile, cb_data);
+ if (stop)
+ return;
+ }
+
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ if (objfile != current_objfile)
+ {
+ stop = cb (objfile, cb_data);
+ if (stop)
+ return;
+ }
+ }
+}
+
+static void
+show_maint_show_all_tib (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Show all non-zero elements of "
+ "Thread Information Block is %s.\n"), value);
+}
+
+static void
+info_w32_command (const char *args, int from_tty)
+{
+ help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
+}
+
+static int w32_prefix_command_valid = 0;
+void
+init_w32_command_list (void)
+{
+ if (!w32_prefix_command_valid)
+ {
+ add_prefix_cmd ("w32", class_info, info_w32_command,
+ _("Print information specific to Win32 debugging."),
+ &info_w32_cmdlist, "info w32 ", 0, &infolist);
+ w32_prefix_command_valid = 1;
+ }
+}
+
+/* Implementation of `gdbarch_gdb_signal_to_target'. */
+
+static int
+windows_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal)
+{
+ switch (signal)
+ {
+ case GDB_SIGNAL_0:
+ return 0;
+ case GDB_SIGNAL_HUP:
+ return WINDOWS_SIGHUP;
+ case GDB_SIGNAL_INT:
+ return WINDOWS_SIGINT;
+ case GDB_SIGNAL_QUIT:
+ return WINDOWS_SIGQUIT;
+ case GDB_SIGNAL_ILL:
+ return WINDOWS_SIGILL;
+ case GDB_SIGNAL_TRAP:
+ return WINDOWS_SIGTRAP;
+ case GDB_SIGNAL_ABRT:
+ return WINDOWS_SIGABRT;
+ case GDB_SIGNAL_EMT:
+ return WINDOWS_SIGEMT;
+ case GDB_SIGNAL_FPE:
+ return WINDOWS_SIGFPE;
+ case GDB_SIGNAL_KILL:
+ return WINDOWS_SIGKILL;
+ case GDB_SIGNAL_BUS:
+ return WINDOWS_SIGBUS;
+ case GDB_SIGNAL_SEGV:
+ return WINDOWS_SIGSEGV;
+ case GDB_SIGNAL_SYS:
+ return WINDOWS_SIGSYS;
+ case GDB_SIGNAL_PIPE:
+ return WINDOWS_SIGPIPE;
+ case GDB_SIGNAL_ALRM:
+ return WINDOWS_SIGALRM;
+ case GDB_SIGNAL_TERM:
+ return WINDOWS_SIGTERM;
+#ifdef __CYGWIN__
+ case GDB_SIGNAL_URG:
+ return WINDOWS_SIGURG;
+ case GDB_SIGNAL_STOP:
+ return WINDOWS_SIGSTOP;
+ case GDB_SIGNAL_TSTP:
+ return WINDOWS_SIGTSTP;
+ case GDB_SIGNAL_CONT:
+ return WINDOWS_SIGCONT;
+ case GDB_SIGNAL_CHLD:
+ return WINDOWS_SIGCHLD;
+ case GDB_SIGNAL_TTIN:
+ return WINDOWS_SIGTTIN;
+ case GDB_SIGNAL_TTOU:
+ return WINDOWS_SIGTTOU;
+ case GDB_SIGNAL_IO:
+ return WINDOWS_SIGIO;
+ case GDB_SIGNAL_XCPU:
+ return WINDOWS_SIGXCPU;
+ case GDB_SIGNAL_XFSZ:
+ return WINDOWS_SIGXFSZ;
+ case GDB_SIGNAL_VTALRM:
+ return WINDOWS_SIGVTALRM;
+ case GDB_SIGNAL_PROF:
+ return WINDOWS_SIGPROF;
+ case GDB_SIGNAL_WINCH:
+ return WINDOWS_SIGWINCH;
+ case GDB_SIGNAL_PWR:
+ return WINDOWS_SIGLOST;
+ case GDB_SIGNAL_USR1:
+ return WINDOWS_SIGUSR1;
+ case GDB_SIGNAL_USR2:
+ return WINDOWS_SIGUSR2;
+#endif /* __CYGWIN__ */
+ }
+ return -1;
+}
+
+/* To be called from the various GDB_OSABI_CYGWIN handlers for the
+ various Windows architectures and machine types. */
+
+void
+windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ set_gdbarch_wchar_bit (gdbarch, 16);
+ set_gdbarch_wchar_signed (gdbarch, 0);
+
+ /* Canonical paths on this target look like
+ `c:\Program Files\Foo App\mydll.dll', for example. */
+ set_gdbarch_has_dos_based_file_system (gdbarch, 1);
+
+ set_gdbarch_iterate_over_objfiles_in_search_order
+ (gdbarch, windows_iterate_over_objfiles_in_search_order);
+
+ set_gdbarch_gdb_signal_to_target (gdbarch, windows_gdb_signal_to_target);
+
+ set_solib_ops (gdbarch, &solib_target_so_ops);
+}
+
+/* Implementation of `tlb' variable. */
+
+static const struct internalvar_funcs tlb_funcs =
+{
+ tlb_make_value,
+ NULL,
+ NULL
+};
+
+void
+_initialize_windows_tdep (void)
+{
+ init_w32_command_list ();
+ add_cmd ("thread-information-block", class_info, display_tib,
+ _("Display thread information block."),
+ &info_w32_cmdlist);
+ add_alias_cmd ("tib", "thread-information-block", class_info, 1,
+ &info_w32_cmdlist);
+
+ add_setshow_boolean_cmd ("show-all-tib", class_maintenance,
+ &maint_display_all_tib, _("\
+Set whether to display all non-zero fields of thread information block."), _("\
+Show whether to display all non-zero fields of thread information block."), _("\
+Use \"on\" to enable, \"off\" to disable.\n\
+If enabled, all non-zero fields of thread information block are displayed,\n\
+even if their meaning is unknown."),
+ NULL,
+ show_maint_show_all_tib,
+ &maintenance_set_cmdlist,
+ &maintenance_show_cmdlist);
+
+ /* Explicitly create without lookup, since that tries to create a
+ value with a void typed value, and when we get here, gdbarch
+ isn't initialized yet. At this point, we're quite sure there
+ isn't another convenience variable of the same name. */
+ create_internalvar_type_lazy ("_tlb", &tlb_funcs, NULL);
+}