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This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
1239 lines
40 KiB
C
1239 lines
40 KiB
C
/* Copyright (C) 2008-2021 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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#include "coff/internal.h"
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#include "libcoff.h"
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#include "solist.h"
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#define CYGWIN_DLL_NAME "cygwin1.dll"
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/* Windows signal numbers differ between MinGW flavors and between
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those and Cygwin. The below enumerations were gleaned from the
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respective headers. */
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/* Signal numbers for the various MinGW flavors. The ones marked with
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MinGW-w64 are defined by MinGW-w64, not by mingw.org's MinGW. */
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enum
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{
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WINDOWS_SIGHUP = 1, /* MinGW-w64 */
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WINDOWS_SIGINT = 2,
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WINDOWS_SIGQUIT = 3, /* MinGW-w64 */
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WINDOWS_SIGILL = 4,
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WINDOWS_SIGTRAP = 5, /* MinGW-w64 */
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WINDOWS_SIGIOT = 6, /* MinGW-w64 */
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WINDOWS_SIGEMT = 7, /* MinGW-w64 */
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WINDOWS_SIGFPE = 8,
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WINDOWS_SIGKILL = 9, /* MinGW-w64 */
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WINDOWS_SIGBUS = 10, /* MinGW-w64 */
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WINDOWS_SIGSEGV = 11,
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WINDOWS_SIGSYS = 12, /* MinGW-w64 */
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WINDOWS_SIGPIPE = 13, /* MinGW-w64 */
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WINDOWS_SIGALRM = 14, /* MinGW-w64 */
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WINDOWS_SIGTERM = 15,
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WINDOWS_SIGBREAK = 21,
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WINDOWS_SIGABRT = 22,
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};
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/* Signal numbers for Cygwin. */
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enum
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{
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CYGWIN_SIGHUP = 1,
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CYGWIN_SIGINT = 2,
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CYGWIN_SIGQUIT = 3,
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CYGWIN_SIGILL = 4,
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CYGWIN_SIGTRAP = 5,
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CYGWIN_SIGABRT = 6,
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CYGWIN_SIGEMT = 7,
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CYGWIN_SIGFPE = 8,
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CYGWIN_SIGKILL = 9,
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CYGWIN_SIGBUS = 10,
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CYGWIN_SIGSEGV = 11,
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CYGWIN_SIGSYS = 12,
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CYGWIN_SIGPIPE = 13,
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CYGWIN_SIGALRM = 14,
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CYGWIN_SIGTERM = 15,
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CYGWIN_SIGURG = 16,
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CYGWIN_SIGSTOP = 17,
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CYGWIN_SIGTSTP = 18,
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CYGWIN_SIGCONT = 19,
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CYGWIN_SIGCHLD = 20,
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CYGWIN_SIGTTIN = 21,
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CYGWIN_SIGTTOU = 22,
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CYGWIN_SIGIO = 23,
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CYGWIN_SIGXCPU = 24,
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CYGWIN_SIGXFSZ = 25,
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CYGWIN_SIGVTALRM = 26,
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CYGWIN_SIGPROF = 27,
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CYGWIN_SIGWINCH = 28,
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CYGWIN_SIGLOST = 29,
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CYGWIN_SIGUSR1 = 30,
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CYGWIN_SIGUSR2 = 31,
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};
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/* These constants are defined by Cygwin's core_dump.h */
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static constexpr unsigned int NOTE_INFO_MODULE = 3;
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static constexpr unsigned int NOTE_INFO_MODULE64 = 4;
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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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list_type->set_name (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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seh_type->set_name (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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peb_ldr_type->set_name (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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peb_type->set_name (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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tib_type->set_name (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);
|
|
TYPE_TARGET_TYPE (tib_ptr_type) = tib_type;
|
|
|
|
windows_gdbarch_data->tib_ptr_type = tib_ptr_type;
|
|
|
|
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
|
|
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));
|
|
/* 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 int w32_prefix_command_valid = 0;
|
|
void
|
|
init_w32_command_list (void)
|
|
{
|
|
if (!w32_prefix_command_valid)
|
|
{
|
|
add_basic_prefix_cmd
|
|
("w32", class_info,
|
|
_("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' for Windows. */
|
|
|
|
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;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/* Implementation of `gdbarch_gdb_signal_to_target' for Cygwin. */
|
|
|
|
static int
|
|
cygwin_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal)
|
|
{
|
|
switch (signal)
|
|
{
|
|
case GDB_SIGNAL_0:
|
|
return 0;
|
|
case GDB_SIGNAL_HUP:
|
|
return CYGWIN_SIGHUP;
|
|
case GDB_SIGNAL_INT:
|
|
return CYGWIN_SIGINT;
|
|
case GDB_SIGNAL_QUIT:
|
|
return CYGWIN_SIGQUIT;
|
|
case GDB_SIGNAL_ILL:
|
|
return CYGWIN_SIGILL;
|
|
case GDB_SIGNAL_TRAP:
|
|
return CYGWIN_SIGTRAP;
|
|
case GDB_SIGNAL_ABRT:
|
|
return CYGWIN_SIGABRT;
|
|
case GDB_SIGNAL_EMT:
|
|
return CYGWIN_SIGEMT;
|
|
case GDB_SIGNAL_FPE:
|
|
return CYGWIN_SIGFPE;
|
|
case GDB_SIGNAL_KILL:
|
|
return CYGWIN_SIGKILL;
|
|
case GDB_SIGNAL_BUS:
|
|
return CYGWIN_SIGBUS;
|
|
case GDB_SIGNAL_SEGV:
|
|
return CYGWIN_SIGSEGV;
|
|
case GDB_SIGNAL_SYS:
|
|
return CYGWIN_SIGSYS;
|
|
case GDB_SIGNAL_PIPE:
|
|
return CYGWIN_SIGPIPE;
|
|
case GDB_SIGNAL_ALRM:
|
|
return CYGWIN_SIGALRM;
|
|
case GDB_SIGNAL_TERM:
|
|
return CYGWIN_SIGTERM;
|
|
case GDB_SIGNAL_URG:
|
|
return CYGWIN_SIGURG;
|
|
case GDB_SIGNAL_STOP:
|
|
return CYGWIN_SIGSTOP;
|
|
case GDB_SIGNAL_TSTP:
|
|
return CYGWIN_SIGTSTP;
|
|
case GDB_SIGNAL_CONT:
|
|
return CYGWIN_SIGCONT;
|
|
case GDB_SIGNAL_CHLD:
|
|
return CYGWIN_SIGCHLD;
|
|
case GDB_SIGNAL_TTIN:
|
|
return CYGWIN_SIGTTIN;
|
|
case GDB_SIGNAL_TTOU:
|
|
return CYGWIN_SIGTTOU;
|
|
case GDB_SIGNAL_IO:
|
|
return CYGWIN_SIGIO;
|
|
case GDB_SIGNAL_XCPU:
|
|
return CYGWIN_SIGXCPU;
|
|
case GDB_SIGNAL_XFSZ:
|
|
return CYGWIN_SIGXFSZ;
|
|
case GDB_SIGNAL_VTALRM:
|
|
return CYGWIN_SIGVTALRM;
|
|
case GDB_SIGNAL_PROF:
|
|
return CYGWIN_SIGPROF;
|
|
case GDB_SIGNAL_WINCH:
|
|
return CYGWIN_SIGWINCH;
|
|
case GDB_SIGNAL_PWR:
|
|
return CYGWIN_SIGLOST;
|
|
case GDB_SIGNAL_USR1:
|
|
return CYGWIN_SIGUSR1;
|
|
case GDB_SIGNAL_USR2:
|
|
return CYGWIN_SIGUSR2;
|
|
}
|
|
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->set_num_fields (count);
|
|
type->set_fields
|
|
((struct field *) TYPE_ZALLOC (type, sizeof (struct field) * count));
|
|
type->set_is_unsigned (true);
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
TYPE_FIELD_NAME (type, i) = values[i].name;
|
|
SET_FIELD_ENUMVAL (type->field (i), values[i].value);
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
static const struct enum_value_name exception_values[] =
|
|
{
|
|
{ 0x40000015, "FATAL_APP_EXIT" },
|
|
{ 0x4000001E, "WX86_SINGLE_STEP" },
|
|
{ 0x4000001F, "WX86_BREAKPOINT" },
|
|
{ 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;
|
|
}
|
|
|
|
/* Implement the "solib_create_inferior_hook" target_so_ops method. */
|
|
|
|
static void
|
|
windows_solib_create_inferior_hook (int from_tty)
|
|
{
|
|
CORE_ADDR exec_base = 0;
|
|
|
|
/* Find base address of main executable in
|
|
TIB->process_environment_block->image_base_address. */
|
|
struct gdbarch *gdbarch = target_gdbarch ();
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
int ptr_bytes;
|
|
int peb_offset; /* Offset of process_environment_block in TIB. */
|
|
int base_offset; /* Offset of image_base_address in PEB. */
|
|
if (gdbarch_ptr_bit (gdbarch) == 32)
|
|
{
|
|
ptr_bytes = 4;
|
|
peb_offset = 48;
|
|
base_offset = 8;
|
|
}
|
|
else
|
|
{
|
|
ptr_bytes = 8;
|
|
peb_offset = 96;
|
|
base_offset = 16;
|
|
}
|
|
CORE_ADDR tlb;
|
|
gdb_byte buf[8];
|
|
if (target_has_execution ()
|
|
&& target_get_tib_address (inferior_ptid, &tlb)
|
|
&& !target_read_memory (tlb + peb_offset, buf, ptr_bytes))
|
|
{
|
|
CORE_ADDR peb = extract_unsigned_integer (buf, ptr_bytes, byte_order);
|
|
if (!target_read_memory (peb + base_offset, buf, ptr_bytes))
|
|
exec_base = extract_unsigned_integer (buf, ptr_bytes, byte_order);
|
|
}
|
|
|
|
/* Rebase executable if the base address changed because of ASLR. */
|
|
if (current_program_space->symfile_object_file != nullptr && exec_base != 0)
|
|
{
|
|
CORE_ADDR vmaddr
|
|
= pe_data (current_program_space->exec_bfd ())->pe_opthdr.ImageBase;
|
|
if (vmaddr != exec_base)
|
|
objfile_rebase (current_program_space->symfile_object_file,
|
|
exec_base - vmaddr);
|
|
}
|
|
}
|
|
|
|
static struct target_so_ops windows_so_ops;
|
|
|
|
/* Common parts for gdbarch initialization for the Windows and Cygwin OS
|
|
ABIs. */
|
|
|
|
static void
|
|
windows_init_abi_common (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);
|
|
|
|
windows_so_ops = solib_target_so_ops;
|
|
windows_so_ops.solib_create_inferior_hook
|
|
= windows_solib_create_inferior_hook;
|
|
set_solib_ops (gdbarch, &windows_so_ops);
|
|
|
|
set_gdbarch_get_siginfo_type (gdbarch, windows_get_siginfo_type);
|
|
}
|
|
|
|
/* See windows-tdep.h. */
|
|
void
|
|
windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
windows_init_abi_common (info, gdbarch);
|
|
set_gdbarch_gdb_signal_to_target (gdbarch, windows_gdb_signal_to_target);
|
|
}
|
|
|
|
/* See windows-tdep.h. */
|
|
|
|
void
|
|
cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
windows_init_abi_common (info, gdbarch);
|
|
set_gdbarch_gdb_signal_to_target (gdbarch, cygwin_gdb_signal_to_target);
|
|
}
|
|
|
|
/* Implementation of `tlb' variable. */
|
|
|
|
static const struct internalvar_funcs tlb_funcs =
|
|
{
|
|
tlb_make_value,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
/* Layout of an element of a PE's Import Directory Table. Based on:
|
|
|
|
https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-directory-table
|
|
*/
|
|
|
|
struct pe_import_directory_entry
|
|
{
|
|
uint32_t import_lookup_table_rva;
|
|
uint32_t timestamp;
|
|
uint32_t forwarder_chain;
|
|
uint32_t name_rva;
|
|
uint32_t import_address_table_rva;
|
|
};
|
|
|
|
gdb_static_assert (sizeof (pe_import_directory_entry) == 20);
|
|
|
|
/* See windows-tdep.h. */
|
|
|
|
bool
|
|
is_linked_with_cygwin_dll (bfd *abfd)
|
|
{
|
|
/* The list of DLLs a PE is linked to is in the .idata section. See:
|
|
|
|
https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#the-idata-section
|
|
*/
|
|
asection *idata_section = bfd_get_section_by_name (abfd, ".idata");
|
|
if (idata_section == nullptr)
|
|
return false;
|
|
|
|
bfd_size_type idata_section_size = bfd_section_size (idata_section);
|
|
internal_extra_pe_aouthdr *pe_extra = &pe_data (abfd)->pe_opthdr;
|
|
bfd_vma import_table_va = pe_extra->DataDirectory[PE_IMPORT_TABLE].VirtualAddress;
|
|
bfd_vma idata_section_va = bfd_section_vma (idata_section);
|
|
|
|
/* The section's virtual address as reported by BFD has the image base applied,
|
|
remove it. */
|
|
gdb_assert (idata_section_va >= pe_extra->ImageBase);
|
|
idata_section_va -= pe_extra->ImageBase;
|
|
|
|
bfd_vma idata_section_end_va = idata_section_va + idata_section_size;
|
|
|
|
/* Make sure that the import table is indeed within the .idata section's range. */
|
|
if (import_table_va < idata_section_va
|
|
|| import_table_va >= idata_section_end_va)
|
|
{
|
|
warning (_("\
|
|
%s: import table's virtual address (0x%" BFD_VMA_FMT "x) is outside .idata \
|
|
section's range [0x%" BFD_VMA_FMT "x, 0x%" BFD_VMA_FMT "x[."),
|
|
bfd_get_filename (abfd), import_table_va, idata_section_va,
|
|
idata_section_end_va);
|
|
return false;
|
|
}
|
|
|
|
/* The import table starts at this offset into the .idata section. */
|
|
bfd_vma import_table_offset_in_sect = import_table_va - idata_section_va;
|
|
|
|
/* Get the section's data. */
|
|
gdb::byte_vector idata_contents;
|
|
if (!gdb_bfd_get_full_section_contents (abfd, idata_section, &idata_contents))
|
|
{
|
|
warning (_("%s: failed to get contents of .idata section."),
|
|
bfd_get_filename (abfd));
|
|
return false;
|
|
}
|
|
|
|
gdb_assert (idata_contents.size () == idata_section_size);
|
|
|
|
const gdb_byte *iter = idata_contents.data () + import_table_offset_in_sect;
|
|
const gdb_byte *end = idata_contents.data () + idata_section_size;
|
|
const pe_import_directory_entry null_dir_entry = { 0 };
|
|
|
|
/* Iterate through all directory entries. */
|
|
while (true)
|
|
{
|
|
/* Is there enough space left in the section for another entry? */
|
|
if (iter + sizeof (pe_import_directory_entry) > end)
|
|
{
|
|
warning (_("%s: unexpected end of .idata section."),
|
|
bfd_get_filename (abfd));
|
|
break;
|
|
}
|
|
|
|
pe_import_directory_entry *dir_entry = (pe_import_directory_entry *) iter;
|
|
|
|
/* Is it the end of list marker? */
|
|
if (memcmp (dir_entry, &null_dir_entry,
|
|
sizeof (pe_import_directory_entry)) == 0)
|
|
break;
|
|
|
|
bfd_vma name_va = dir_entry->name_rva;
|
|
|
|
/* If the name's virtual address is smaller than the section's virtual
|
|
address, there's a problem. */
|
|
if (name_va < idata_section_va || name_va >= idata_section_end_va)
|
|
{
|
|
warning (_("\
|
|
%s: name's virtual address (0x%" BFD_VMA_FMT "x) is outside .idata section's \
|
|
range [0x%" BFD_VMA_FMT "x, 0x%" BFD_VMA_FMT "x[."),
|
|
bfd_get_filename (abfd), name_va, idata_section_va,
|
|
idata_section_end_va);
|
|
break;
|
|
}
|
|
|
|
const gdb_byte *name = &idata_contents[name_va - idata_section_va];
|
|
|
|
/* Make sure we don't overshoot the end of the section with the
|
|
streq. */
|
|
if (name + sizeof (CYGWIN_DLL_NAME) <= end)
|
|
{
|
|
/* Finally, check if this is the dll name we are looking for. */
|
|
if (streq ((const char *) name, CYGWIN_DLL_NAME))
|
|
return true;
|
|
}
|
|
|
|
iter += sizeof (pe_import_directory_entry);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
struct cpms_data
|
|
{
|
|
struct gdbarch *gdbarch;
|
|
struct obstack *obstack;
|
|
int module_count;
|
|
};
|
|
|
|
static void
|
|
core_process_module_section (bfd *abfd, asection *sect, void *obj)
|
|
{
|
|
struct cpms_data *data = (struct cpms_data *) obj;
|
|
enum bfd_endian byte_order = gdbarch_byte_order (data->gdbarch);
|
|
|
|
unsigned int data_type;
|
|
char *module_name;
|
|
size_t module_name_size;
|
|
size_t module_name_offset;
|
|
CORE_ADDR base_addr;
|
|
|
|
gdb_byte *buf = NULL;
|
|
|
|
if (!startswith (sect->name, ".module"))
|
|
return;
|
|
|
|
buf = (gdb_byte *) xmalloc (bfd_section_size (sect) + 1);
|
|
if (!buf)
|
|
{
|
|
printf_unfiltered ("memory allocation failed for %s\n", sect->name);
|
|
goto out;
|
|
}
|
|
if (!bfd_get_section_contents (abfd, sect,
|
|
buf, 0, bfd_section_size (sect)))
|
|
goto out;
|
|
|
|
|
|
|
|
/* A DWORD (data_type) followed by struct windows_core_module_info. */
|
|
data_type = extract_unsigned_integer (buf, 4, byte_order);
|
|
|
|
if (data_type == NOTE_INFO_MODULE)
|
|
{
|
|
base_addr = extract_unsigned_integer (buf + 4, 4, byte_order);
|
|
module_name_size = extract_unsigned_integer (buf + 8, 4, byte_order);
|
|
module_name_offset = 12;
|
|
}
|
|
else if (data_type == NOTE_INFO_MODULE64)
|
|
{
|
|
base_addr = extract_unsigned_integer (buf + 4, 8, byte_order);
|
|
module_name_size = extract_unsigned_integer (buf + 12, 4, byte_order);
|
|
module_name_offset = 16;
|
|
}
|
|
else
|
|
goto out;
|
|
|
|
if (module_name_offset + module_name_size > bfd_section_size (sect))
|
|
goto out;
|
|
module_name = (char *) buf + module_name_offset;
|
|
|
|
/* The first module is the .exe itself. */
|
|
if (data->module_count != 0)
|
|
windows_xfer_shared_library (module_name, base_addr,
|
|
NULL, data->gdbarch, data->obstack);
|
|
data->module_count++;
|
|
|
|
out:
|
|
xfree (buf);
|
|
return;
|
|
}
|
|
|
|
ULONGEST
|
|
windows_core_xfer_shared_libraries (struct gdbarch *gdbarch,
|
|
gdb_byte *readbuf,
|
|
ULONGEST offset, ULONGEST len)
|
|
{
|
|
struct obstack obstack;
|
|
const char *buf;
|
|
ULONGEST len_avail;
|
|
struct cpms_data data = { gdbarch, &obstack, 0 };
|
|
|
|
obstack_init (&obstack);
|
|
obstack_grow_str (&obstack, "<library-list>\n");
|
|
bfd_map_over_sections (core_bfd,
|
|
core_process_module_section,
|
|
&data);
|
|
obstack_grow_str0 (&obstack, "</library-list>\n");
|
|
|
|
buf = (const char *) obstack_finish (&obstack);
|
|
len_avail = strlen (buf);
|
|
if (offset >= len_avail)
|
|
return 0;
|
|
|
|
if (len > len_avail - offset)
|
|
len = len_avail - offset;
|
|
memcpy (readbuf, buf + offset, len);
|
|
|
|
obstack_free (&obstack, NULL);
|
|
return len;
|
|
}
|
|
|
|
/* This is how we want PTIDs from core files to be printed. */
|
|
|
|
std::string
|
|
windows_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
|
|
{
|
|
if (ptid.lwp () != 0)
|
|
return string_printf ("Thread 0x%lx", ptid.lwp ());
|
|
|
|
return normal_pid_to_str (ptid);
|
|
}
|
|
|
|
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);
|
|
}
|