2009-02-06 Pedro Alves <pedro@codesourcery.com>
gdb/ * target.h (enum target_object): Add new TARGET_OBJECT_SIGNAL_INFO. * infrun.c (siginfo_value_read, siginfo_value_write): New. (siginfo_value_funcs): New. (siginfo_make_value): New. (_initialize_infrun): Create the $_siginfo convenience variable. * gdbtypes.h (append_composite_type_field_aligned): Declare. * gdbtypes.c (append_composite_type_field): Rename to... (append_composite_type_field_aligned): ... this. Add ALIGNMENT argument. Handle it. (append_composite_type_field): Rewrite on top of append_composite_type_field_aligned. * value.h (internalvar_make_value): New typedef. (struct internalvar) <make_value>: New field. (create_internalvar_type_lazy): Declare. * value.c (create_internalvar): Clear make_value. (create_internalvar_type_lazy): New. (value_of_internalvar): If make_value is set use it. (preserve_values): Skip internal variables that don't have a value. * gdbarch.sh (get_siginfo_type): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.h, linux-tdep.c: New. * amd64-linux-tdep.c: Include "linux-tdep.h". (amd64_linux_init_abi): Register linux_get_siginfo_type and linux_get_siginfo_mapper. * i386-linux-tdep.c: Include "linux-tdep.h". (i386_linux_init_abi): Register linux_get_siginfo_type and linux_get_siginfo_mapper. * arm-linux-tdep.c: Include "linux-tdep.h". (i386_linux_init_abi): Register linux_get_siginfo_type and linux_get_siginfo_mapper. * linux-nat.c (linux_xfer_siginfo): New. (linux_nat_xfer_partial): Handle TARGET_OBJECT_SIGNAL_INFO. * remote.c (PACKET_qXfer_siginfo_read) (PACKET_qXfer_siginfo_write): New. (feature remote_protocol_features): Add "qXfer:siginfo:read" and "qXfer:siginfo:write" features. (remote_xfer_partial): Handle TARGET_OBJECT_SIGNAL_INFO. (_initialize_remote): Add "set/show remote read-siginfo-object" and "set/show remote write-siginfo-object" commands. * Makefile.in (ALL_TARGET_OBS): Add linux-tdep.o. (HFILES_NO_SRCDIR): Add linux-tdep.h. (ALLDEPFILES): Add linux-tdep.c. * configure.tgt (arm*-*-linux* | arm*-*-uclinux*) (i[34567]86-*-linux*, x86_64-*-linux*): Add linux-tdep.o to gdb_target_obs. 2009-02-06 Pedro Alves <pedro@codesourcery.com> gdb/gdbserver/ * server.c (handle_query): Report qXfer:siginfo:read and qXfer:siginfo:write as supported and handle them. * target.h (struct target_ops) <qxfer_siginfo>: New field. * linux-low.c (linux_xfer_siginfo): New. (linux_target_ops): Set it. 2009-02-06 Pedro Alves <pedro@codesourcery.com> gdb/doc/ * gdb.texinfo (Signals): Document $_siginfo. (Convenience Variables): Mention $_siginfo. (Remote Configuration): Document qXfer:siginfo:read, qXfer:siginfo:write packets, and the read-siginfo-object, write-siginfo-object commands. 2009-02-06 Pedro Alves <pedro@codesourcery.com> gdb/testsuite/ * gdb.base/siginfo-obj.c, gdb.base/siginfo-obj.exp: New.
This commit is contained in:
Pedro Alves
parent
5f5233d48e
commit
4aa995e123
28 changed files with 962 additions and 29 deletions
138
gdb/linux-tdep.c
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138
gdb/linux-tdep.c
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/* Target-dependent code for GNU/Linux, architecture independent.
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Copyright (C) 2009 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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/* 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 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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int_type = init_type (TYPE_CODE_INT,
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gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT,
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0, "int", NULL);
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uint_type = init_type (TYPE_CODE_INT,
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gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT,
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0, "unsigned int", NULL);
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long_type = init_type (TYPE_CODE_INT,
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gdbarch_long_bit (gdbarch) / HOST_CHAR_BIT,
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0, "long", NULL);
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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 = init_composite_type (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 = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (int_type),
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TYPE_FLAG_TARGET_STUB, NULL, NULL);
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TYPE_NAME (pid_type) = xstrdup ("__pid_t");
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TYPE_TARGET_TYPE (pid_type) = int_type;
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/* __uid_t */
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uid_type = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (uint_type),
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TYPE_FLAG_TARGET_STUB, NULL, NULL);
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TYPE_NAME (uid_type) = xstrdup ("__uid_t");
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TYPE_TARGET_TYPE (uid_type) = uint_type;
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/* __clock_t */
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clock_type = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (long_type),
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TYPE_FLAG_TARGET_STUB, NULL, NULL);
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TYPE_NAME (clock_type) = xstrdup ("__clock_t");
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TYPE_TARGET_TYPE (clock_type) = long_type;
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/* _sifields */
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sifields_type = init_composite_type (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 = init_composite_type (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 = init_composite_type (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 = init_composite_type (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 = init_composite_type (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 = init_composite_type (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 = init_composite_type (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 = init_composite_type (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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return siginfo_type;
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}
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