/* Target-dependent code for GNU/Linux, architecture independent.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdbtypes.h"
#include "linux-tdep.h"
+#include "auxv.h"
+#include "target.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;
- 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);
+ 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),
+ 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);
"_sifields", sifields_type,
TYPE_LENGTH (long_type));
+ linux_gdbarch_data->siginfo_type = siginfo_type;
+
return siginfo_type;
}
+
+int
+linux_has_shared_address_space (void)
+{
+ /* Determine whether we are running on uClinux or normal Linux
+ kernel. */
+ CORE_ADDR dummy;
+ int target_is_uclinux;
+
+ target_is_uclinux
+ = (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0
+ && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0);
+
+ return target_is_uclinux;
+}
+
+/* This is how we want PTIDs from core files to be printed. */
+
+static char *
+linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
+{
+ 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);
+}
+
+/* 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)
+{
+ linux_gdbarch_data_handle =
+ gdbarch_data_register_post_init (init_linux_gdbarch_data);
+}
projects / binutils-gdb.git / blobdiff