1 files changed, 138 insertions, 0 deletions
diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c
new file mode 100644
index 0000000..f1f7373
--- /dev/null
+++ b/gdb/linux-tdep.c
@@ -0,0 +1,138 @@
+/* Target-dependent code for GNU/Linux, architecture independent.
+
+   Copyright (C) 2009 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "defs.h"
+#include "gdbtypes.h"
+
+/* This function is suitable for architectures that don't
+   extend/override the standard siginfo structure.  */
+
+struct type *
+linux_get_siginfo_type (struct gdbarch *gdbarch)
+{
+  struct type *int_type, *uint_type, *long_type, *void_ptr_type;
+  struct type *uid_type, *pid_type;
+  struct type *sigval_type, *clock_type;
+  struct type *siginfo_type, *sifields_type;
+  struct type *type;
+
+  int_type = init_type (TYPE_CODE_INT,
+			gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT,
+			0, "int", NULL);
+  uint_type = init_type (TYPE_CODE_INT,
+			 gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT,
+			 0, "unsigned int", NULL);
+  long_type = init_type (TYPE_CODE_INT,
+			 gdbarch_long_bit (gdbarch) / HOST_CHAR_BIT,
+			 0, "long", NULL);
+  void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
+
+  /* sival_t */
+  sigval_type = init_composite_type (NULL, TYPE_CODE_UNION);
+  TYPE_NAME (sigval_type) = xstrdup ("sigval_t");
+  append_composite_type_field (sigval_type, "sival_int", int_type);
+  append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type);
+
+  /* __pid_t */
+  pid_type = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (int_type),
+			TYPE_FLAG_TARGET_STUB, NULL, NULL);
+  TYPE_NAME (pid_type) = xstrdup ("__pid_t");
+  TYPE_TARGET_TYPE (pid_type) = int_type;
+
+  /* __uid_t */
+  uid_type = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (uint_type),
+			TYPE_FLAG_TARGET_STUB, NULL, NULL);
+  TYPE_NAME (uid_type) = xstrdup ("__uid_t");
+  TYPE_TARGET_TYPE (uid_type) = uint_type;
+
+  /* __clock_t */
+  clock_type = init_type (TYPE_CODE_TYPEDEF, TYPE_LENGTH (long_type),
+			  TYPE_FLAG_TARGET_STUB, NULL, NULL);
+  TYPE_NAME (clock_type) = xstrdup ("__clock_t");
+  TYPE_TARGET_TYPE (clock_type) = long_type;
+
+  /* _sifields */
+  sifields_type = init_composite_type (NULL, TYPE_CODE_UNION);
+
+  {
+    const int si_max_size = 128;
+    int si_pad_size;
+    int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT;
+
+    /* _pad */
+    if (gdbarch_ptr_bit (gdbarch) == 64)
+      si_pad_size = (si_max_size / size_of_int) - 4;
+    else
+      si_pad_size = (si_max_size / size_of_int) - 3;
+    append_composite_type_field (sifields_type, "_pad",
+				 init_vector_type (int_type, si_pad_size));
+  }
+
+  /* _kill */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_pid", pid_type);
+  append_composite_type_field (type, "si_uid", uid_type);
+  append_composite_type_field (sifields_type, "_kill", type);
+
+  /* _timer */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_tid", int_type);
+  append_composite_type_field (type, "si_overrun", int_type);
+  append_composite_type_field (type, "si_sigval", sigval_type);
+  append_composite_type_field (sifields_type, "_timer", type);
+
+  /* _rt */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_pid", pid_type);
+  append_composite_type_field (type, "si_uid", uid_type);
+  append_composite_type_field (type, "si_sigval", sigval_type);
+  append_composite_type_field (sifields_type, "_rt", type);
+
+  /* _sigchld */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_pid", pid_type);
+  append_composite_type_field (type, "si_uid", uid_type);
+  append_composite_type_field (type, "si_status", int_type);
+  append_composite_type_field (type, "si_utime", clock_type);
+  append_composite_type_field (type, "si_stime", clock_type);
+  append_composite_type_field (sifields_type, "_sigchld", type);
+
+  /* _sigfault */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_addr", void_ptr_type);
+  append_composite_type_field (sifields_type, "_sigfault", type);
+
+  /* _sigpoll */
+  type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (type, "si_band", long_type);
+  append_composite_type_field (type, "si_fd", int_type);
+  append_composite_type_field (sifields_type, "_sigpoll", type);
+
+  /* struct siginfo */
+  siginfo_type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+  TYPE_NAME (siginfo_type) = xstrdup ("siginfo");
+  append_composite_type_field (siginfo_type, "si_signo", int_type);
+  append_composite_type_field (siginfo_type, "si_errno", int_type);
+  append_composite_type_field (siginfo_type, "si_code", int_type);
+  append_composite_type_field_aligned (siginfo_type,
+				       "_sifields", sifields_type,
+				       TYPE_LENGTH (long_type));
+
+  return siginfo_type;
+}