URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [windows-tdep.c] - Rev 332
Go to most recent revision | Compare with Previous | Blame | View Log
/* Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "defs.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" 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 int maint_display_all_tib = 0; /* 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, *list_ptr_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"); list_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR, TYPE_LENGTH (void_ptr_type), NULL); 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), 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), 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), 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), 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 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) { if (target_has_stack && !ptid_equal (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 = 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)); return -1; } if (target_read (¤t_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), paddress (target_gdbarch, thread_local_base)); return -1; } printf_filtered (_("Thread Information Block %s at %s\n"), target_pid_to_str (ptid), 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 a thread specified by ARGS. If ARGS is empty, display thread information block of current_thread if current_thread is non NULL. Otherwise ARGS is parsed and converted to a integer that should be the windows ThreadID (not the internal GDB thread ID). */ static void display_tib (char * args, int from_tty) { if (args) { struct thread_info *tp; int gdb_id = value_as_long (parse_and_eval (args)); tp = find_thread_id (gdb_id); if (!tp) error (_("Thread ID %d not known."), gdb_id); if (!target_thread_alive (tp->ptid)) error (_("Thread ID %d has terminated."), gdb_id); display_one_tib (tp->ptid); } else if (!ptid_equal (inferior_ptid, null_ptid)) display_one_tib (inferior_ptid); } void windows_xfer_shared_library (const char* so_name, CORE_ADDR load_addr, struct gdbarch *gdbarch, struct obstack *obstack) { char *p; obstack_grow_str (obstack, "<library name=\""); p = xml_escape_text (so_name); obstack_grow_str (obstack, p); xfree (p); obstack_grow_str (obstack, "\"><segment address=\""); /* The symbols in a dll are offset by 0x1000, which is the the offset from 0 of the first byte in an image - because of the file header and the section alignment. */ obstack_grow_str (obstack, paddress (gdbarch, load_addr + 0x1000)); obstack_grow_str (obstack, "\"/></library>"); } 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 (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; } } 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_make_value); }
Go to most recent revision | Compare with Previous | Blame | View Log