/* Target-dependent code for GNU/Linux, architecture independent.
- Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdbcore.h"
#include "gdbtypes.h"
#include "linux-tdep.h"
-#include "observer.h"
#include "auxv.h"
#include "target.h"
-#include "elf-bfd.h"
#include "elf/common.h"
+#include "inferior.h"
+
+static struct gdbarch_data *linux_gdbarch_data_handle;
+
+struct linux_gdbarch_data
+ {
+ struct type *siginfo_type;
+ };
+
+static void *
+init_linux_gdbarch_data (struct gdbarch *gdbarch)
+{
+ return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data);
+}
+
+static struct linux_gdbarch_data *
+get_linux_gdbarch_data (struct gdbarch *gdbarch)
+{
+ return gdbarch_data (gdbarch, linux_gdbarch_data_handle);
+}
/* 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 linux_gdbarch_data *linux_gdbarch_data;
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;
+ linux_gdbarch_data = get_linux_gdbarch_data (gdbarch);
+ if (linux_gdbarch_data->siginfo_type != NULL)
+ return linux_gdbarch_data->siginfo_type;
+
int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
0, "int");
uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type);
/* __pid_t */
- pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (int_type),
- xstrdup ("__pid_t"));
+ pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
+ TYPE_LENGTH (int_type), "__pid_t");
TYPE_TARGET_TYPE (pid_type) = int_type;
TYPE_TARGET_STUB (pid_type) = 1;
/* __uid_t */
- uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (uint_type),
- xstrdup ("__uid_t"));
+ uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
+ TYPE_LENGTH (uint_type), "__uid_t");
TYPE_TARGET_TYPE (uid_type) = uint_type;
TYPE_TARGET_STUB (uid_type) = 1;
/* __clock_t */
- clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (long_type),
- xstrdup ("__clock_t"));
+ clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
+ TYPE_LENGTH (long_type), "__clock_t");
TYPE_TARGET_TYPE (clock_type) = long_type;
TYPE_TARGET_STUB (clock_type) = 1;
"_sifields", sifields_type,
TYPE_LENGTH (long_type));
+ linux_gdbarch_data->siginfo_type = siginfo_type;
+
return siginfo_type;
}
return target_is_uclinux;
}
-/* Observer for the executable_changed event, to check whether the new
- exec binary is a PIE (Position Independent Executable) specimen, which
- is currently unsupported. */
+/* This is how we want PTIDs from core files to be printed. */
-static void
-check_is_pie_binary (void)
+static char *
+linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
{
- Elf_Internal_Ehdr *elf_hdr;
-
- if (!exec_bfd)
- return;
- else if (bfd_get_flavour (exec_bfd) != bfd_target_elf_flavour)
- return;
-
- if (elf_tdata (exec_bfd)->elf_header->e_type == ET_DYN)
- warning (_("\
-The current binary is a PIE (Position Independent Executable), which\n\
-GDB does NOT currently support. Most debugger features will fail if used\n\
-in this session.\n"));
+ static char buf[80];
+
+ if (ptid_get_lwp (ptid) != 0)
+ {
+ snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid));
+ return buf;
+ }
+
+ return normal_pid_to_str (ptid);
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_linux_tdep;
+/* 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);
+}
void
_initialize_linux_tdep (void)
{
- observer_attach_executable_changed (check_is_pie_binary);
+ linux_gdbarch_data_handle =
+ gdbarch_data_register_post_init (init_linux_gdbarch_data);
}