3030c96e66
* gdbarch.c, gdbarch.h: Regenerate. * infcmd.c (info_proc_cmd_1): Try gdbarch info_proc callback before falling back to the target info_proc callback. * linux-nat.c: Do not include "cli/cli-utils.h". (linux_nat_info_proc): Remove. (linux_target_install_ops): No longer install it. * linux-tdep.c: Include "cli/cli-utils.h" and <ctype.h>. (read_mapping): New function. (linux_info_proc): Likewise. (linux_init_abi): Install it.
543 lines
16 KiB
C
543 lines
16 KiB
C
/* Target-dependent code for GNU/Linux, architecture independent.
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Copyright (C) 2009-2012 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 "gdbtypes.h"
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#include "linux-tdep.h"
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#include "auxv.h"
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#include "target.h"
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#include "elf/common.h"
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#include "inferior.h"
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#include "cli/cli-utils.h"
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#include <ctype.h>
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static struct gdbarch_data *linux_gdbarch_data_handle;
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struct linux_gdbarch_data
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{
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struct type *siginfo_type;
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};
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static void *
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init_linux_gdbarch_data (struct gdbarch *gdbarch)
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{
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return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data);
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}
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static struct linux_gdbarch_data *
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get_linux_gdbarch_data (struct gdbarch *gdbarch)
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{
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return gdbarch_data (gdbarch, linux_gdbarch_data_handle);
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}
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/* This function is suitable for architectures that don't
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extend/override the standard siginfo structure. */
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struct type *
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linux_get_siginfo_type (struct gdbarch *gdbarch)
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{
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struct linux_gdbarch_data *linux_gdbarch_data;
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struct type *int_type, *uint_type, *long_type, *void_ptr_type;
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struct type *uid_type, *pid_type;
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struct type *sigval_type, *clock_type;
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struct type *siginfo_type, *sifields_type;
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struct type *type;
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linux_gdbarch_data = get_linux_gdbarch_data (gdbarch);
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if (linux_gdbarch_data->siginfo_type != NULL)
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return linux_gdbarch_data->siginfo_type;
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int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
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0, "int");
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uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
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1, "unsigned int");
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long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
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0, "long");
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void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
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/* sival_t */
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sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
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TYPE_NAME (sigval_type) = xstrdup ("sigval_t");
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append_composite_type_field (sigval_type, "sival_int", int_type);
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append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type);
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/* __pid_t */
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pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
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TYPE_LENGTH (int_type), "__pid_t");
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TYPE_TARGET_TYPE (pid_type) = int_type;
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TYPE_TARGET_STUB (pid_type) = 1;
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/* __uid_t */
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uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
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TYPE_LENGTH (uint_type), "__uid_t");
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TYPE_TARGET_TYPE (uid_type) = uint_type;
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TYPE_TARGET_STUB (uid_type) = 1;
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/* __clock_t */
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clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
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TYPE_LENGTH (long_type), "__clock_t");
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TYPE_TARGET_TYPE (clock_type) = long_type;
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TYPE_TARGET_STUB (clock_type) = 1;
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/* _sifields */
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sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
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{
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const int si_max_size = 128;
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int si_pad_size;
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int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT;
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/* _pad */
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if (gdbarch_ptr_bit (gdbarch) == 64)
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si_pad_size = (si_max_size / size_of_int) - 4;
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else
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si_pad_size = (si_max_size / size_of_int) - 3;
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append_composite_type_field (sifields_type, "_pad",
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init_vector_type (int_type, si_pad_size));
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}
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/* _kill */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_pid", pid_type);
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append_composite_type_field (type, "si_uid", uid_type);
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append_composite_type_field (sifields_type, "_kill", type);
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/* _timer */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_tid", int_type);
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append_composite_type_field (type, "si_overrun", int_type);
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append_composite_type_field (type, "si_sigval", sigval_type);
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append_composite_type_field (sifields_type, "_timer", type);
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/* _rt */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_pid", pid_type);
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append_composite_type_field (type, "si_uid", uid_type);
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append_composite_type_field (type, "si_sigval", sigval_type);
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append_composite_type_field (sifields_type, "_rt", type);
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/* _sigchld */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_pid", pid_type);
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append_composite_type_field (type, "si_uid", uid_type);
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append_composite_type_field (type, "si_status", int_type);
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append_composite_type_field (type, "si_utime", clock_type);
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append_composite_type_field (type, "si_stime", clock_type);
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append_composite_type_field (sifields_type, "_sigchld", type);
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/* _sigfault */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_addr", void_ptr_type);
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append_composite_type_field (sifields_type, "_sigfault", type);
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/* _sigpoll */
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type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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append_composite_type_field (type, "si_band", long_type);
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append_composite_type_field (type, "si_fd", int_type);
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append_composite_type_field (sifields_type, "_sigpoll", type);
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/* struct siginfo */
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siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
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TYPE_NAME (siginfo_type) = xstrdup ("siginfo");
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append_composite_type_field (siginfo_type, "si_signo", int_type);
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append_composite_type_field (siginfo_type, "si_errno", int_type);
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append_composite_type_field (siginfo_type, "si_code", int_type);
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append_composite_type_field_aligned (siginfo_type,
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"_sifields", sifields_type,
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TYPE_LENGTH (long_type));
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linux_gdbarch_data->siginfo_type = siginfo_type;
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return siginfo_type;
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}
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int
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linux_has_shared_address_space (void)
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{
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/* Determine whether we are running on uClinux or normal Linux
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kernel. */
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CORE_ADDR dummy;
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int target_is_uclinux;
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target_is_uclinux
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= (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0
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&& target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0);
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return target_is_uclinux;
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}
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/* This is how we want PTIDs from core files to be printed. */
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static char *
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linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
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{
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static char buf[80];
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if (ptid_get_lwp (ptid) != 0)
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{
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snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid));
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return buf;
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}
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return normal_pid_to_str (ptid);
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}
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/* Service function for corefiles and info proc. */
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static void
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read_mapping (const char *line,
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ULONGEST *addr, ULONGEST *endaddr,
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const char **permissions, size_t *permissions_len,
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ULONGEST *offset,
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const char **device, size_t *device_len,
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ULONGEST *inode,
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const char **filename)
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{
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const char *p = line;
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*addr = strtoulst (p, &p, 16);
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if (*p == '-')
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p++;
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*endaddr = strtoulst (p, &p, 16);
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while (*p && isspace (*p))
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p++;
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*permissions = p;
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while (*p && !isspace (*p))
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p++;
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*permissions_len = p - *permissions;
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*offset = strtoulst (p, &p, 16);
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while (*p && isspace (*p))
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p++;
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*device = p;
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while (*p && !isspace (*p))
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p++;
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*device_len = p - *device;
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*inode = strtoulst (p, &p, 10);
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while (*p && isspace (*p))
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p++;
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*filename = p;
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}
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/* Implement the "info proc" command. */
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static void
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linux_info_proc (struct gdbarch *gdbarch, char *args,
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enum info_proc_what what)
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{
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/* A long is used for pid instead of an int to avoid a loss of precision
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compiler warning from the output of strtoul. */
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long pid;
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int cmdline_f = (what == IP_MINIMAL || what == IP_CMDLINE || what == IP_ALL);
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int cwd_f = (what == IP_MINIMAL || what == IP_CWD || what == IP_ALL);
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int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL);
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int mappings_f = (what == IP_MAPPINGS || what == IP_ALL);
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int status_f = (what == IP_STATUS || what == IP_ALL);
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int stat_f = (what == IP_STAT || what == IP_ALL);
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char filename[100];
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gdb_byte *data;
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int target_errno;
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if (args && isdigit (args[0]))
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pid = strtoul (args, &args, 10);
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else
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{
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if (!target_has_execution)
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error (_("No current process: you must name one."));
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if (current_inferior ()->fake_pid_p)
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error (_("Can't determine the current process's PID: you must name one."));
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pid = current_inferior ()->pid;
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}
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args = skip_spaces (args);
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if (args && args[0])
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error (_("Too many parameters: %s"), args);
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printf_filtered (_("process %ld\n"), pid);
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if (cmdline_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid);
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data = target_fileio_read_stralloc (filename);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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printf_filtered ("cmdline = '%s'\n", data);
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do_cleanups (cleanup);
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}
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else
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warning (_("unable to open /proc file '%s'"), filename);
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}
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if (cwd_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid);
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data = target_fileio_readlink (filename, &target_errno);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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printf_filtered ("cwd = '%s'\n", data);
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do_cleanups (cleanup);
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}
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else
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warning (_("unable to read link '%s'"), filename);
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}
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if (exe_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid);
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data = target_fileio_readlink (filename, &target_errno);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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printf_filtered ("exe = '%s'\n", data);
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do_cleanups (cleanup);
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}
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else
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warning (_("unable to read link '%s'"), filename);
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}
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if (mappings_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid);
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data = target_fileio_read_stralloc (filename);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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char *line;
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printf_filtered (_("Mapped address spaces:\n\n"));
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if (gdbarch_addr_bit (gdbarch) == 32)
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{
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printf_filtered ("\t%10s %10s %10s %10s %s\n",
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"Start Addr",
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" End Addr",
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" Size", " Offset", "objfile");
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}
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else
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{
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printf_filtered (" %18s %18s %10s %10s %s\n",
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"Start Addr",
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" End Addr",
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" Size", " Offset", "objfile");
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}
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for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n"))
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{
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ULONGEST addr, endaddr, offset, inode;
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const char *permissions, *device, *filename;
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size_t permissions_len, device_len;
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read_mapping (line, &addr, &endaddr,
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&permissions, &permissions_len,
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&offset, &device, &device_len,
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&inode, &filename);
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if (gdbarch_addr_bit (gdbarch) == 32)
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{
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printf_filtered ("\t%10s %10s %10s %10s %s\n",
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paddress (gdbarch, addr),
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paddress (gdbarch, endaddr),
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hex_string (endaddr - addr),
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hex_string (offset),
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*filename? filename : "");
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}
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else
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{
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printf_filtered (" %18s %18s %10s %10s %s\n",
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paddress (gdbarch, addr),
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paddress (gdbarch, endaddr),
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hex_string (endaddr - addr),
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hex_string (offset),
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*filename? filename : "");
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}
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}
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do_cleanups (cleanup);
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}
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else
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warning (_("unable to open /proc file '%s'"), filename);
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}
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if (status_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid);
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data = target_fileio_read_stralloc (filename);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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puts_filtered (data);
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do_cleanups (cleanup);
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}
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else
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warning (_("unable to open /proc file '%s'"), filename);
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}
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if (stat_f)
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{
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xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid);
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data = target_fileio_read_stralloc (filename);
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if (data)
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{
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struct cleanup *cleanup = make_cleanup (xfree, data);
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const char *p = data;
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const char *ep;
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ULONGEST val;
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printf_filtered (_("Process: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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while (*p && isspace (*p))
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p++;
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if (*p == '(' && (ep = strchr (p, ')')) != NULL)
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{
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printf_filtered ("Exec file: %.*s\n", (int) (ep - p - 1), p + 1);
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p = ep + 1;
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}
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while (*p && isspace (*p))
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p++;
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if (*p)
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printf_filtered (_("State: %c\n"), *p++);
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if (*p)
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printf_filtered (_("Parent process: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Process group: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Session id: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("TTY: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("TTY owner process group: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Flags: %s\n"),
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hex_string (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Minor faults (no memory page): %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Minor faults, children: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Major faults (memory page faults): %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("Major faults, children: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("utime: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("stime: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("utime, children: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("stime, children: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("jiffies remaining in current "
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"time slice: %s\n"),
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pulongest (strtoulst (p, &p, 10)));
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if (*p)
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printf_filtered (_("'nice' value: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("jiffies until next timeout: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("jiffies until next SIGALRM: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("start time (jiffies since "
|
|
"system boot): %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Virtual memory size: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Resident set size: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("rlim: %s\n"),
|
|
pulongest (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Start of text: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("End of text: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Start of stack: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
#if 0 /* Don't know how architecture-dependent the rest is...
|
|
Anyway the signal bitmap info is available from "status". */
|
|
if (*p)
|
|
printf_filtered (_("Kernel stack pointer: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Kernel instr pointer: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Pending signals bitmap: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Blocked signals bitmap: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Ignored signals bitmap: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("Catched signals bitmap: %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
if (*p)
|
|
printf_filtered (_("wchan (system call): %s\n"),
|
|
hex_string (strtoulst (p, &p, 10)));
|
|
#endif
|
|
do_cleanups (cleanup);
|
|
}
|
|
else
|
|
warning (_("unable to open /proc file '%s'"), filename);
|
|
}
|
|
}
|
|
|
|
/* To be called from the various GDB_OSABI_LINUX handlers for the
|
|
various GNU/Linux architectures and machine types. */
|
|
|
|
void
|
|
linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str);
|
|
set_gdbarch_info_proc (gdbarch, linux_info_proc);
|
|
}
|
|
|
|
void
|
|
_initialize_linux_tdep (void)
|
|
{
|
|
linux_gdbarch_data_handle =
|
|
gdbarch_data_register_post_init (init_linux_gdbarch_data);
|
|
}
|