879 lines
30 KiB
C
879 lines
30 KiB
C
/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "windows-tdep.h"
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#include "gdb_obstack.h"
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#include "xml-support.h"
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#include "gdbarch.h"
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#include "target.h"
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#include "value.h"
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#include "inferior.h"
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#include "command.h"
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#include "gdbcmd.h"
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#include "gdbthread.h"
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#include "objfiles.h"
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#include "symfile.h"
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#include "coff-pe-read.h"
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#include "gdb_bfd.h"
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#include "complaints.h"
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#include "solib.h"
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#include "solib-target.h"
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#include "gdbcore.h"
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/* Windows signal numbers differ between MinGW flavors and between
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those and Cygwin. The below enumeration was gleaned from the
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respective headers; the ones marked with MinGW64/Cygwin are defined
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only by MinGW64 and Cygwin, not by mingw.org's MinGW. FIXME: We
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should really have distinct MinGW vs Cygwin OSABIs, and two
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separate enums, selected at runtime. */
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enum
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{
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WINDOWS_SIGHUP = 1, /* MinGW64/Cygwin */
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WINDOWS_SIGINT = 2,
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WINDOWS_SIGQUIT = 3, /* MinGW64/Cygwin */
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WINDOWS_SIGILL = 4,
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WINDOWS_SIGTRAP = 5, /* MinGW64/Cygwin */
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#ifdef __CYGWIN__
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WINDOWS_SIGABRT = 6,
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#else
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WINDOWS_SIGIOT = 6, /* MinGW64 */
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#endif
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WINDOWS_SIGEMT = 7, /* MinGW64/Cygwin */
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WINDOWS_SIGFPE = 8,
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WINDOWS_SIGKILL = 9, /* MinGW64/Cygwin */
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WINDOWS_SIGBUS = 10, /* MinGW64/Cygwin */
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WINDOWS_SIGSEGV = 11,
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WINDOWS_SIGSYS = 12, /* MinGW64/Cygwin */
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WINDOWS_SIGPIPE = 13,/* MinGW64/Cygwin */
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WINDOWS_SIGALRM = 14,/* MinGW64/Cygwin */
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WINDOWS_SIGTERM = 15,
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#ifdef __CYGWIN__
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WINDOWS_SIGURG = 16,
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WINDOWS_SIGSTOP = 17,
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WINDOWS_SIGTSTP = 18,
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WINDOWS_SIGCONT = 19,
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WINDOWS_SIGCHLD = 20,
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WINDOWS_SIGTTIN = 21,
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WINDOWS_SIGTTOU = 22,
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WINDOWS_SIGIO = 23,
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WINDOWS_SIGXCPU = 24,
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WINDOWS_SIGXFSZ = 25,
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WINDOWS_SIGVTALRM = 26,
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WINDOWS_SIGPROF = 27,
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WINDOWS_SIGWINCH = 28,
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WINDOWS_SIGLOST = 29,
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WINDOWS_SIGUSR1 = 30,
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WINDOWS_SIGUSR2 = 31
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#else
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WINDOWS_SIGBREAK = 21,
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WINDOWS_SIGABRT = 22
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#endif
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};
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struct cmd_list_element *info_w32_cmdlist;
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typedef struct thread_information_block_32
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{
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uint32_t current_seh; /* %fs:0x0000 */
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uint32_t current_top_of_stack; /* %fs:0x0004 */
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uint32_t current_bottom_of_stack; /* %fs:0x0008 */
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uint32_t sub_system_tib; /* %fs:0x000c */
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uint32_t fiber_data; /* %fs:0x0010 */
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uint32_t arbitrary_data_slot; /* %fs:0x0014 */
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uint32_t linear_address_tib; /* %fs:0x0018 */
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uint32_t environment_pointer; /* %fs:0x001c */
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uint32_t process_id; /* %fs:0x0020 */
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uint32_t current_thread_id; /* %fs:0x0024 */
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uint32_t active_rpc_handle; /* %fs:0x0028 */
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uint32_t thread_local_storage; /* %fs:0x002c */
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uint32_t process_environment_block; /* %fs:0x0030 */
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uint32_t last_error_number; /* %fs:0x0034 */
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}
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thread_information_32;
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typedef struct thread_information_block_64
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{
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uint64_t current_seh; /* %gs:0x0000 */
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uint64_t current_top_of_stack; /* %gs:0x0008 */
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uint64_t current_bottom_of_stack; /* %gs:0x0010 */
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uint64_t sub_system_tib; /* %gs:0x0018 */
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uint64_t fiber_data; /* %gs:0x0020 */
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uint64_t arbitrary_data_slot; /* %gs:0x0028 */
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uint64_t linear_address_tib; /* %gs:0x0030 */
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uint64_t environment_pointer; /* %gs:0x0038 */
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uint64_t process_id; /* %gs:0x0040 */
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uint64_t current_thread_id; /* %gs:0x0048 */
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uint64_t active_rpc_handle; /* %gs:0x0050 */
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uint64_t thread_local_storage; /* %gs:0x0058 */
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uint64_t process_environment_block; /* %gs:0x0060 */
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uint64_t last_error_number; /* %gs:0x0068 */
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}
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thread_information_64;
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static const char* TIB_NAME[] =
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{
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" current_seh ", /* %fs:0x0000 */
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" current_top_of_stack ", /* %fs:0x0004 */
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" current_bottom_of_stack ", /* %fs:0x0008 */
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" sub_system_tib ", /* %fs:0x000c */
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" fiber_data ", /* %fs:0x0010 */
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" arbitrary_data_slot ", /* %fs:0x0014 */
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" linear_address_tib ", /* %fs:0x0018 */
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" environment_pointer ", /* %fs:0x001c */
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" process_id ", /* %fs:0x0020 */
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" current_thread_id ", /* %fs:0x0024 */
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" active_rpc_handle ", /* %fs:0x0028 */
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" thread_local_storage ", /* %fs:0x002c */
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" process_environment_block ", /* %fs:0x0030 */
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" last_error_number " /* %fs:0x0034 */
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};
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static const int MAX_TIB32 =
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sizeof (thread_information_32) / sizeof (uint32_t);
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static const int MAX_TIB64 =
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sizeof (thread_information_64) / sizeof (uint64_t);
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static const int FULL_TIB_SIZE = 0x1000;
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static bool maint_display_all_tib = false;
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static struct gdbarch_data *windows_gdbarch_data_handle;
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struct windows_gdbarch_data
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{
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struct type *siginfo_type;
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struct type *tib_ptr_type; /* Type of thread information block */
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};
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/* Allocate windows_gdbarch_data for an arch. */
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static void *
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init_windows_gdbarch_data (struct gdbarch *gdbarch)
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{
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return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct windows_gdbarch_data);
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}
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/* Get windows_gdbarch_data of an arch. */
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static struct windows_gdbarch_data *
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get_windows_gdbarch_data (struct gdbarch *gdbarch)
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{
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return ((struct windows_gdbarch_data *)
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gdbarch_data (gdbarch, windows_gdbarch_data_handle));
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}
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/* Define Thread Local Base pointer type. */
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static struct type *
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windows_get_tlb_type (struct gdbarch *gdbarch)
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{
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struct type *dword_ptr_type, *dword32_type, *void_ptr_type;
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struct type *peb_ldr_type, *peb_ldr_ptr_type;
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struct type *peb_type, *peb_ptr_type, *list_type;
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struct type *module_list_ptr_type;
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struct type *tib_type, *seh_type, *tib_ptr_type, *seh_ptr_type;
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struct type *word_type, *wchar_type, *wchar_ptr_type;
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struct type *uni_str_type, *rupp_type, *rupp_ptr_type;
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windows_gdbarch_data *windows_gdbarch_data
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= get_windows_gdbarch_data (gdbarch);
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if (windows_gdbarch_data->tib_ptr_type != nullptr)
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return windows_gdbarch_data->tib_ptr_type;
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dword_ptr_type = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
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1, "DWORD_PTR");
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dword32_type = arch_integer_type (gdbarch, 32,
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1, "DWORD32");
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word_type = arch_integer_type (gdbarch, 16,
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1, "WORD");
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wchar_type = arch_integer_type (gdbarch, 16,
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1, "wchar_t");
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void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
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wchar_ptr_type = arch_pointer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
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NULL, wchar_type);
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/* list entry */
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list_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (list_type) = xstrdup ("list");
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module_list_ptr_type = void_ptr_type;
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append_composite_type_field (list_type, "forward_list",
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module_list_ptr_type);
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append_composite_type_field (list_type, "backward_list",
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module_list_ptr_type);
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/* Structured Exception Handler */
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seh_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (seh_type) = xstrdup ("seh");
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seh_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
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TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
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NULL);
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TYPE_TARGET_TYPE (seh_ptr_type) = seh_type;
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append_composite_type_field (seh_type, "next_seh", seh_ptr_type);
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append_composite_type_field (seh_type, "handler",
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builtin_type (gdbarch)->builtin_func_ptr);
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/* struct _PEB_LDR_DATA */
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peb_ldr_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (peb_ldr_type) = xstrdup ("peb_ldr_data");
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append_composite_type_field (peb_ldr_type, "length", dword32_type);
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append_composite_type_field (peb_ldr_type, "initialized", dword32_type);
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append_composite_type_field (peb_ldr_type, "ss_handle", void_ptr_type);
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append_composite_type_field (peb_ldr_type, "in_load_order", list_type);
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append_composite_type_field (peb_ldr_type, "in_memory_order", list_type);
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append_composite_type_field (peb_ldr_type, "in_init_order", list_type);
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append_composite_type_field (peb_ldr_type, "entry_in_progress",
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void_ptr_type);
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peb_ldr_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
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TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
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NULL);
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TYPE_TARGET_TYPE (peb_ldr_ptr_type) = peb_ldr_type;
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/* struct UNICODE_STRING */
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uni_str_type = arch_composite_type (gdbarch, "unicode_string",
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TYPE_CODE_STRUCT);
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append_composite_type_field (uni_str_type, "length", word_type);
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append_composite_type_field (uni_str_type, "maximum_length", word_type);
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append_composite_type_field_aligned (uni_str_type, "buffer",
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wchar_ptr_type,
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TYPE_LENGTH (wchar_ptr_type));
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/* struct _RTL_USER_PROCESS_PARAMETERS */
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rupp_type = arch_composite_type (gdbarch, "rtl_user_process_parameters",
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TYPE_CODE_STRUCT);
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append_composite_type_field (rupp_type, "maximum_length", dword32_type);
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append_composite_type_field (rupp_type, "length", dword32_type);
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append_composite_type_field (rupp_type, "flags", dword32_type);
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append_composite_type_field (rupp_type, "debug_flags", dword32_type);
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append_composite_type_field (rupp_type, "console_handle", void_ptr_type);
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append_composite_type_field (rupp_type, "console_flags", dword32_type);
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append_composite_type_field_aligned (rupp_type, "standard_input",
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void_ptr_type,
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TYPE_LENGTH (void_ptr_type));
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append_composite_type_field (rupp_type, "standard_output", void_ptr_type);
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append_composite_type_field (rupp_type, "standard_error", void_ptr_type);
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append_composite_type_field (rupp_type, "current_directory", uni_str_type);
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append_composite_type_field (rupp_type, "current_directory_handle",
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void_ptr_type);
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append_composite_type_field (rupp_type, "dll_path", uni_str_type);
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append_composite_type_field (rupp_type, "image_path_name", uni_str_type);
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append_composite_type_field (rupp_type, "command_line", uni_str_type);
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append_composite_type_field (rupp_type, "environment", void_ptr_type);
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append_composite_type_field (rupp_type, "starting_x", dword32_type);
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append_composite_type_field (rupp_type, "starting_y", dword32_type);
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append_composite_type_field (rupp_type, "count_x", dword32_type);
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append_composite_type_field (rupp_type, "count_y", dword32_type);
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append_composite_type_field (rupp_type, "count_chars_x", dword32_type);
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append_composite_type_field (rupp_type, "count_chars_y", dword32_type);
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append_composite_type_field (rupp_type, "fill_attribute", dword32_type);
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append_composite_type_field (rupp_type, "window_flags", dword32_type);
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append_composite_type_field (rupp_type, "show_window_flags", dword32_type);
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append_composite_type_field_aligned (rupp_type, "window_title",
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uni_str_type,
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TYPE_LENGTH (void_ptr_type));
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append_composite_type_field (rupp_type, "desktop_info", uni_str_type);
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append_composite_type_field (rupp_type, "shell_info", uni_str_type);
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append_composite_type_field (rupp_type, "runtime_data", uni_str_type);
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rupp_ptr_type = arch_pointer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
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NULL, rupp_type);
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/* struct process environment block */
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peb_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (peb_type) = xstrdup ("peb");
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/* First bytes contain several flags. */
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append_composite_type_field (peb_type, "flags", dword_ptr_type);
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append_composite_type_field (peb_type, "mutant", void_ptr_type);
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append_composite_type_field (peb_type, "image_base_address", void_ptr_type);
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append_composite_type_field (peb_type, "ldr", peb_ldr_ptr_type);
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append_composite_type_field (peb_type, "process_parameters", rupp_ptr_type);
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append_composite_type_field (peb_type, "sub_system_data", void_ptr_type);
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append_composite_type_field (peb_type, "process_heap", void_ptr_type);
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append_composite_type_field (peb_type, "fast_peb_lock", void_ptr_type);
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peb_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
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TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
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NULL);
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TYPE_TARGET_TYPE (peb_ptr_type) = peb_type;
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/* struct thread information block */
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tib_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (tib_type) = xstrdup ("tib");
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/* uint32_t current_seh; %fs:0x0000 */
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append_composite_type_field (tib_type, "current_seh", seh_ptr_type);
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/* uint32_t current_top_of_stack; %fs:0x0004 */
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append_composite_type_field (tib_type, "current_top_of_stack",
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void_ptr_type);
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/* uint32_t current_bottom_of_stack; %fs:0x0008 */
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append_composite_type_field (tib_type, "current_bottom_of_stack",
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void_ptr_type);
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/* uint32_t sub_system_tib; %fs:0x000c */
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append_composite_type_field (tib_type, "sub_system_tib", void_ptr_type);
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/* uint32_t fiber_data; %fs:0x0010 */
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append_composite_type_field (tib_type, "fiber_data", void_ptr_type);
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/* uint32_t arbitrary_data_slot; %fs:0x0014 */
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append_composite_type_field (tib_type, "arbitrary_data_slot", void_ptr_type);
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/* uint32_t linear_address_tib; %fs:0x0018 */
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append_composite_type_field (tib_type, "linear_address_tib", void_ptr_type);
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/* uint32_t environment_pointer; %fs:0x001c */
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append_composite_type_field (tib_type, "environment_pointer", void_ptr_type);
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/* uint32_t process_id; %fs:0x0020 */
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append_composite_type_field (tib_type, "process_id", dword_ptr_type);
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/* uint32_t current_thread_id; %fs:0x0024 */
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append_composite_type_field (tib_type, "thread_id", dword_ptr_type);
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/* uint32_t active_rpc_handle; %fs:0x0028 */
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append_composite_type_field (tib_type, "active_rpc_handle", dword_ptr_type);
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/* uint32_t thread_local_storage; %fs:0x002c */
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append_composite_type_field (tib_type, "thread_local_storage",
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void_ptr_type);
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/* uint32_t process_environment_block; %fs:0x0030 */
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append_composite_type_field (tib_type, "process_environment_block",
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peb_ptr_type);
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/* uint32_t last_error_number; %fs:0x0034 */
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append_composite_type_field (tib_type, "last_error_number", dword_ptr_type);
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tib_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
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TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
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NULL);
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TYPE_TARGET_TYPE (tib_ptr_type) = tib_type;
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windows_gdbarch_data->tib_ptr_type = tib_ptr_type;
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return tib_ptr_type;
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}
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/* The $_tlb convenience variable is a bit special. We don't know
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for sure the type of the value until we actually have a chance to
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fetch the data. The type can change depending on gdbarch, so it is
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also dependent on which thread you have selected. */
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/* This function implements the lval_computed support for reading a
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$_tlb value. */
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static void
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tlb_value_read (struct value *val)
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{
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CORE_ADDR tlb;
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struct type *type = check_typedef (value_type (val));
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if (!target_get_tib_address (inferior_ptid, &tlb))
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error (_("Unable to read tlb"));
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store_typed_address (value_contents_raw (val), type, tlb);
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}
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/* This function implements the lval_computed support for writing a
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$_tlb value. */
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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
|
|
windows_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
|
|
CORE_ADDR *text_offset_cached,
|
|
struct gdbarch *gdbarch, struct obstack *obstack)
|
|
{
|
|
CORE_ADDR text_offset = text_offset_cached ? *text_offset_cached : 0;
|
|
|
|
obstack_grow_str (obstack, "<library name=\"");
|
|
std::string p = xml_escape_text (so_name);
|
|
obstack_grow_str (obstack, p.c_str ());
|
|
obstack_grow_str (obstack, "\"><segment address=\"");
|
|
|
|
if (!text_offset)
|
|
{
|
|
gdb_bfd_ref_ptr dll (gdb_bfd_open (so_name, gnutarget, -1));
|
|
/* The following calls are OK even if dll is NULL.
|
|
The default value 0x1000 is returned by pe_text_section_offset
|
|
in that case. */
|
|
text_offset = pe_text_section_offset (dll.get ());
|
|
if (text_offset_cached)
|
|
*text_offset_cached = text_offset;
|
|
}
|
|
|
|
obstack_grow_str (obstack, paddress (gdbarch, load_addr + text_offset));
|
|
obstack_grow_str (obstack, "\"/></library>");
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
struct enum_value_name
|
|
{
|
|
uint32_t value;
|
|
const char *name;
|
|
};
|
|
|
|
/* Allocate a TYPE_CODE_ENUM type structure with its named values. */
|
|
|
|
static struct type *
|
|
create_enum (struct gdbarch *gdbarch, int bit, const char *name,
|
|
const struct enum_value_name *values, int count)
|
|
{
|
|
struct type *type;
|
|
int i;
|
|
|
|
type = arch_type (gdbarch, TYPE_CODE_ENUM, bit, name);
|
|
TYPE_NFIELDS (type) = count;
|
|
TYPE_FIELDS (type) = (struct field *)
|
|
TYPE_ZALLOC (type, sizeof (struct field) * count);
|
|
TYPE_UNSIGNED (type) = 1;
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
TYPE_FIELD_NAME (type, i) = values[i].name;
|
|
SET_FIELD_ENUMVAL (TYPE_FIELD (type, i), values[i].value);
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
static const struct enum_value_name exception_values[] =
|
|
{
|
|
{ 0x40000015, "FATAL_APP_EXIT" },
|
|
{ 0x40010005, "DBG_CONTROL_C" },
|
|
{ 0x40010008, "DBG_CONTROL_BREAK" },
|
|
{ 0x80000002, "DATATYPE_MISALIGNMENT" },
|
|
{ 0x80000003, "BREAKPOINT" },
|
|
{ 0x80000004, "SINGLE_STEP" },
|
|
{ 0xC0000005, "ACCESS_VIOLATION" },
|
|
{ 0xC0000006, "IN_PAGE_ERROR" },
|
|
{ 0xC000001D, "ILLEGAL_INSTRUCTION" },
|
|
{ 0xC0000025, "NONCONTINUABLE_EXCEPTION" },
|
|
{ 0xC0000026, "INVALID_DISPOSITION" },
|
|
{ 0xC000008C, "ARRAY_BOUNDS_EXCEEDED" },
|
|
{ 0xC000008D, "FLOAT_DENORMAL_OPERAND" },
|
|
{ 0xC000008E, "FLOAT_DIVIDE_BY_ZERO" },
|
|
{ 0xC000008F, "FLOAT_INEXACT_RESULT" },
|
|
{ 0xC0000090, "FLOAT_INVALID_OPERATION" },
|
|
{ 0xC0000091, "FLOAT_OVERFLOW" },
|
|
{ 0xC0000092, "FLOAT_STACK_CHECK" },
|
|
{ 0xC0000093, "FLOAT_UNDERFLOW" },
|
|
{ 0xC0000094, "INTEGER_DIVIDE_BY_ZERO" },
|
|
{ 0xC0000095, "INTEGER_OVERFLOW" },
|
|
{ 0xC0000096, "PRIV_INSTRUCTION" },
|
|
{ 0xC00000FD, "STACK_OVERFLOW" },
|
|
{ 0xC0000409, "FAST_FAIL" },
|
|
};
|
|
|
|
static const struct enum_value_name violation_values[] =
|
|
{
|
|
{ 0, "READ_ACCESS_VIOLATION" },
|
|
{ 1, "WRITE_ACCESS_VIOLATION" },
|
|
{ 8, "DATA_EXECUTION_PREVENTION_VIOLATION" },
|
|
};
|
|
|
|
/* Implement the "get_siginfo_type" gdbarch method. */
|
|
|
|
static struct type *
|
|
windows_get_siginfo_type (struct gdbarch *gdbarch)
|
|
{
|
|
struct windows_gdbarch_data *windows_gdbarch_data;
|
|
struct type *dword_type, *pvoid_type, *ulongptr_type;
|
|
struct type *code_enum, *violation_enum;
|
|
struct type *violation_type, *para_type, *siginfo_ptr_type, *siginfo_type;
|
|
|
|
windows_gdbarch_data = get_windows_gdbarch_data (gdbarch);
|
|
if (windows_gdbarch_data->siginfo_type != NULL)
|
|
return windows_gdbarch_data->siginfo_type;
|
|
|
|
dword_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
|
|
1, "DWORD");
|
|
pvoid_type = arch_pointer_type (gdbarch, gdbarch_ptr_bit (gdbarch), "PVOID",
|
|
builtin_type (gdbarch)->builtin_void);
|
|
ulongptr_type = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
|
|
1, "ULONG_PTR");
|
|
|
|
/* ExceptionCode value names */
|
|
code_enum = create_enum (gdbarch, gdbarch_int_bit (gdbarch),
|
|
"ExceptionCode", exception_values,
|
|
ARRAY_SIZE (exception_values));
|
|
|
|
/* ACCESS_VIOLATION type names */
|
|
violation_enum = create_enum (gdbarch, gdbarch_ptr_bit (gdbarch),
|
|
"ViolationType", violation_values,
|
|
ARRAY_SIZE (violation_values));
|
|
|
|
/* ACCESS_VIOLATION information */
|
|
violation_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
|
|
append_composite_type_field (violation_type, "Type", violation_enum);
|
|
append_composite_type_field (violation_type, "Address", pvoid_type);
|
|
|
|
/* Unnamed union of the documented field ExceptionInformation,
|
|
and the alternative AccessViolationInformation (which displays
|
|
human-readable values for ExceptionCode ACCESS_VIOLATION). */
|
|
para_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
|
|
append_composite_type_field (para_type, "ExceptionInformation",
|
|
lookup_array_range_type (ulongptr_type, 0, 14));
|
|
append_composite_type_field (para_type, "AccessViolationInformation",
|
|
violation_type);
|
|
|
|
siginfo_type = arch_composite_type (gdbarch, "EXCEPTION_RECORD",
|
|
TYPE_CODE_STRUCT);
|
|
siginfo_ptr_type = arch_pointer_type (gdbarch, gdbarch_ptr_bit (gdbarch),
|
|
NULL, siginfo_type);
|
|
|
|
/* ExceptionCode is documented as type DWORD, but here a helper
|
|
enum type is used instead to display a human-readable value. */
|
|
append_composite_type_field (siginfo_type, "ExceptionCode", code_enum);
|
|
append_composite_type_field (siginfo_type, "ExceptionFlags", dword_type);
|
|
append_composite_type_field (siginfo_type, "ExceptionRecord",
|
|
siginfo_ptr_type);
|
|
append_composite_type_field (siginfo_type, "ExceptionAddress",
|
|
pvoid_type);
|
|
append_composite_type_field (siginfo_type, "NumberParameters", dword_type);
|
|
/* The 64-bit variant needs some padding. */
|
|
append_composite_type_field_aligned (siginfo_type, "",
|
|
para_type, TYPE_LENGTH (ulongptr_type));
|
|
|
|
windows_gdbarch_data->siginfo_type = siginfo_type;
|
|
|
|
return siginfo_type;
|
|
}
|
|
|
|
/* 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);
|
|
|
|
set_gdbarch_get_siginfo_type (gdbarch, windows_get_siginfo_type);
|
|
}
|
|
|
|
/* Implementation of `tlb' variable. */
|
|
|
|
static const struct internalvar_funcs tlb_funcs =
|
|
{
|
|
tlb_make_value,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
void _initialize_windows_tdep ();
|
|
void
|
|
_initialize_windows_tdep ()
|
|
{
|
|
windows_gdbarch_data_handle
|
|
= gdbarch_data_register_post_init (init_windows_gdbarch_data);
|
|
|
|
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);
|
|
}
|