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 "elf-bfd.h"
/* This function is suitable for architectures that don't
extend/override the standard siginfo structure. */
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);
+ int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
+ 0, "int");
+ uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
+ 1, "unsigned int");
+ long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
+ 0, "long");
void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
/* sival_t */
- sigval_type = init_composite_type (NULL, TYPE_CODE_UNION);
+ sigval_type = arch_composite_type (gdbarch, 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");
+ pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (int_type),
+ xstrdup ("__pid_t"));
TYPE_TARGET_TYPE (pid_type) = int_type;
+ TYPE_TARGET_STUB (pid_type) = 1;
/* __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");
+ uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (uint_type),
+ xstrdup ("__uid_t"));
TYPE_TARGET_TYPE (uid_type) = uint_type;
+ TYPE_TARGET_STUB (uid_type) = 1;
/* __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");
+ clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (long_type),
+ xstrdup ("__clock_t"));
TYPE_TARGET_TYPE (clock_type) = long_type;
+ TYPE_TARGET_STUB (clock_type) = 1;
/* _sifields */
- sifields_type = init_composite_type (NULL, TYPE_CODE_UNION);
+ sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
{
const int si_max_size = 128;
}
/* _kill */
- type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+ type = arch_composite_type (gdbarch, 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);
+ type = arch_composite_type (gdbarch, 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);
+ type = arch_composite_type (gdbarch, 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);
+ type = arch_composite_type (gdbarch, 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 (sifields_type, "_sigchld", type);
/* _sigfault */
- type = init_composite_type (NULL, TYPE_CODE_STRUCT);
+ type = arch_composite_type (gdbarch, 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);
+ type = arch_composite_type (gdbarch, 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);
+ siginfo_type = arch_composite_type (gdbarch, 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);
return siginfo_type;
}
+
+/* Observer for the executable_changed event, to check whether the new
+ exec binary is a PIE (Position Independent Executable) specimen, which
+ is currently unsupported. */
+
+static void
+check_is_pie_binary (void)
+{
+ 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"));
+}
+
+void
+_initialize_linux_tdep (void)
+{
+ observer_attach_executable_changed (check_is_pie_binary);
+}
projects / deliverable / binutils-gdb.git / blobdiff