/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
- Inc.
+ Copyright (C) 1998-2019 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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#if GDB_MULTI_ARCH
#include "arch-utils.h"
#include "gdbcmd.h"
-#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
-#else
-/* Just include everything in sight so that the every old definition
- of macro is visible. */
-#include "symtab.h"
-#include "frame.h"
-#include "inferior.h"
-#include "breakpoint.h"
-#include "gdb_wait.h"
-#include "gdbcore.h"
-#include "gdbcmd.h"
-#include "target.h"
-#include "annotate.h"
-#endif
-#include "gdb_string.h"
+#include "inferior.h" /* enum CALL_DUMMY_LOCATION et al. */
+#include "infrun.h"
#include "regcache.h"
-#include "gdb_assert.h"
#include "sim-regno.h"
+#include "gdbcore.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+#include "objfiles.h"
+#include "language.h"
+#include "symtab.h"
-#include "version.h"
+#include "gdbsupport/version.h"
#include "floatformat.h"
-/* Implementation of extract return value that grubs around in the
- register cache. */
-void
-legacy_extract_return_value (struct type *type, struct regcache *regcache,
- void *valbuf)
+#include "dis-asm.h"
+
+int
+default_displaced_step_hw_singlestep (struct gdbarch *gdbarch,
+ struct displaced_step_closure *closure)
{
- char *registers = deprecated_grub_regcache_for_registers (regcache);
- bfd_byte *buf = valbuf;
- DEPRECATED_EXTRACT_RETURN_VALUE (type, registers, buf); /* OK */
+ return !gdbarch_software_single_step_p (gdbarch);
}
-/* Implementation of store return value that grubs the register cache.
- Takes a local copy of the buffer to avoid const problems. */
-void
-legacy_store_return_value (struct type *type, struct regcache *regcache,
- const void *buf)
+CORE_ADDR
+displaced_step_at_entry_point (struct gdbarch *gdbarch)
{
- bfd_byte *b = alloca (TYPE_LENGTH (type));
- gdb_assert (regcache == current_regcache);
- memcpy (b, buf, TYPE_LENGTH (type));
- DEPRECATED_STORE_RETURN_VALUE (type, b);
-}
+ CORE_ADDR addr;
+ int bp_len;
+ addr = entry_point_address ();
-int
-always_use_struct_convention (int gcc_p, struct type *value_type)
-{
- return 1;
-}
+ /* Inferior calls also use the entry point as a breakpoint location.
+ We don't want displaced stepping to interfere with those
+ breakpoints, so leave space. */
+ gdbarch_breakpoint_from_pc (gdbarch, &addr, &bp_len);
+ addr += bp_len * 2;
+ return addr;
+}
int
-legacy_register_sim_regno (int regnum)
+legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum)
{
/* Only makes sense to supply raw registers. */
- gdb_assert (regnum >= 0 && regnum < NUM_REGS);
+ gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
/* NOTE: cagney/2002-05-13: The old code did it this way and it is
suspected that some GDB/SIM combinations may rely on this
- behavour. The default should be one2one_register_sim_regno
+ behaviour. The default should be one2one_register_sim_regno
(below). */
- if (REGISTER_NAME (regnum) != NULL
- && REGISTER_NAME (regnum)[0] != '\0')
+ if (gdbarch_register_name (gdbarch, regnum) != NULL
+ && gdbarch_register_name (gdbarch, regnum)[0] != '\0')
return regnum;
else
return LEGACY_SIM_REGNO_IGNORE;
}
-int
-generic_frameless_function_invocation_not (struct frame_info *fi)
-{
- return 0;
-}
-
-int
-generic_return_value_on_stack_not (struct type *type)
-{
- return 0;
-}
-
CORE_ADDR
-generic_skip_trampoline_code (CORE_ADDR pc)
+generic_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
return 0;
}
-int
-generic_in_solib_call_trampoline (CORE_ADDR pc, char *name)
+CORE_ADDR
+generic_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
{
return 0;
}
int
-generic_in_solib_return_trampoline (CORE_ADDR pc, char *name)
+generic_in_solib_return_trampoline (struct gdbarch *gdbarch,
+ CORE_ADDR pc, const char *name)
{
return 0;
}
int
-generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
+generic_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
return 0;
}
-const char *
-legacy_register_name (int i)
-{
-#ifdef REGISTER_NAMES
- static char *names[] = REGISTER_NAMES;
- if (i < 0 || i >= (sizeof (names) / sizeof (*names)))
- return NULL;
- else
- return names[i];
-#else
- internal_error (__FILE__, __LINE__,
- "legacy_register_name: called.");
- return NULL;
-#endif
-}
-
-#if defined (CALL_DUMMY)
-LONGEST legacy_call_dummy_words[] = CALL_DUMMY;
-#else
-LONGEST legacy_call_dummy_words[1];
-#endif
-int legacy_sizeof_call_dummy_words = sizeof (legacy_call_dummy_words);
-
-void
-generic_remote_translate_xfer_address (struct gdbarch *gdbarch,
- struct regcache *regcache,
- CORE_ADDR gdb_addr, int gdb_len,
- CORE_ADDR * rem_addr, int *rem_len)
-{
- *rem_addr = gdb_addr;
- *rem_len = gdb_len;
-}
-
-int
-generic_prologue_frameless_p (CORE_ADDR ip)
-{
- return ip == SKIP_PROLOGUE (ip);
-}
-
-/* New/multi-arched targets should use the correct gdbarch field
- instead of using this global pointer. */
int
-legacy_print_insn (bfd_vma vma, disassemble_info *info)
+default_code_of_frame_writable (struct gdbarch *gdbarch,
+ struct frame_info *frame)
{
- return (*deprecated_tm_print_insn) (vma, info);
+ return 1;
}
-/* Helper functions for INNER_THAN */
+/* Helper functions for gdbarch_inner_than */
int
core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs)
return (lhs > rhs);
}
+/* Misc helper functions for targets. */
-/* Helper functions for TARGET_{FLOAT,DOUBLE}_FORMAT */
-
-const struct floatformat *
-default_float_format (struct gdbarch *gdbarch)
-{
-#if GDB_MULTI_ARCH
- int byte_order = gdbarch_byte_order (gdbarch);
-#else
- int byte_order = TARGET_BYTE_ORDER;
-#endif
- switch (byte_order)
- {
- case BFD_ENDIAN_BIG:
- return &floatformat_ieee_single_big;
- case BFD_ENDIAN_LITTLE:
- return &floatformat_ieee_single_little;
- default:
- internal_error (__FILE__, __LINE__,
- "default_float_format: bad byte order");
- }
-}
-
-
-const struct floatformat *
-default_double_format (struct gdbarch *gdbarch)
-{
-#if GDB_MULTI_ARCH
- int byte_order = gdbarch_byte_order (gdbarch);
-#else
- int byte_order = TARGET_BYTE_ORDER;
-#endif
- switch (byte_order)
- {
- case BFD_ENDIAN_BIG:
- return &floatformat_ieee_double_big;
- case BFD_ENDIAN_LITTLE:
- return &floatformat_ieee_double_little;
- default:
- internal_error (__FILE__, __LINE__,
- "default_double_format: bad byte order");
- }
-}
-
-/* Misc helper functions for targets. */
-
-int
-deprecated_register_convertible_not (int num)
-{
- return 0;
-}
-
-
-/* Under some ABI's that specify the `struct convention' for returning
- structures by value, by the time we've returned from the function,
- the return value is sitting there in the caller's buffer, but GDB
- has no way to find the address of that buffer.
-
- On such architectures, use this function as your
- extract_struct_value_address method. When asked to a struct
- returned by value in this fashion, GDB will print a nice error
- message, instead of garbage. */
CORE_ADDR
-generic_cannot_extract_struct_value_address (char *dummy)
+core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr)
{
- return 0;
+ return addr;
}
CORE_ADDR
-core_addr_identity (CORE_ADDR addr)
+convert_from_func_ptr_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr,
+ struct target_ops *targ)
{
return addr;
}
int
-no_op_reg_to_regnum (int reg)
+no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg)
{
return reg;
}
-/* Default prepare_to_procced(). */
-int
-default_prepare_to_proceed (int select_it)
+void
+default_coff_make_msymbol_special (int val, struct minimal_symbol *msym)
{
- return 0;
+ return;
}
-/* Generic prepare_to_proceed(). This one should be suitable for most
- targets that support threads. */
-int
-generic_prepare_to_proceed (int select_it)
-{
- ptid_t wait_ptid;
- struct target_waitstatus wait_status;
-
- /* Get the last target status returned by target_wait(). */
- get_last_target_status (&wait_ptid, &wait_status);
-
- /* Make sure we were stopped either at a breakpoint, or because
- of a Ctrl-C. */
- if (wait_status.kind != TARGET_WAITKIND_STOPPED
- || (wait_status.value.sig != TARGET_SIGNAL_TRAP &&
- wait_status.value.sig != TARGET_SIGNAL_INT))
- {
- return 0;
- }
-
- if (!ptid_equal (wait_ptid, minus_one_ptid)
- && !ptid_equal (inferior_ptid, wait_ptid))
- {
- /* Switched over from WAIT_PID. */
- CORE_ADDR wait_pc = read_pc_pid (wait_ptid);
+/* See arch-utils.h. */
- if (wait_pc != read_pc ())
- {
- if (select_it)
- {
- /* Switch back to WAIT_PID thread. */
- inferior_ptid = wait_ptid;
-
- /* FIXME: This stuff came from switch_to_thread() in
- thread.c (which should probably be a public function). */
- flush_cached_frames ();
- registers_changed ();
- stop_pc = wait_pc;
- select_frame (get_current_frame ());
- }
- /* We return 1 to indicate that there is a breakpoint here,
- so we need to step over it before continuing to avoid
- hitting it straight away. */
- if (breakpoint_here_p (wait_pc))
- {
- return 1;
- }
- }
- }
- return 0;
-
+void
+default_make_symbol_special (struct symbol *sym, struct objfile *objfile)
+{
+ return;
}
+/* See arch-utils.h. */
+
CORE_ADDR
-init_frame_pc_noop (int fromleaf, struct frame_info *prev)
+default_adjust_dwarf2_addr (CORE_ADDR pc)
{
- /* Do nothing, implies return the same PC value. */
- return get_frame_pc (prev);
+ return pc;
}
+/* See arch-utils.h. */
+
CORE_ADDR
-init_frame_pc_default (int fromleaf, struct frame_info *prev)
+default_adjust_dwarf2_line (CORE_ADDR addr, int rel)
{
- if (fromleaf && DEPRECATED_SAVED_PC_AFTER_CALL_P ())
- return DEPRECATED_SAVED_PC_AFTER_CALL (get_next_frame (prev));
- else if (get_next_frame (prev) != NULL)
- return DEPRECATED_FRAME_SAVED_PC (get_next_frame (prev));
- else
- return read_pc ();
+ return addr;
}
-void
-default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
-{
- return;
-}
+/* See arch-utils.h. */
-void
-default_coff_make_msymbol_special (int val, struct minimal_symbol *msym)
+bool
+default_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op,
+ struct dwarf2_frame_state *fs)
{
- return;
+ return false;
}
int
-cannot_register_not (int regnum)
+cannot_register_not (struct gdbarch *gdbarch, int regnum)
{
return 0;
}
/* Legacy version of target_virtual_frame_pointer(). Assumes that
- there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or
- raw. */
+ there is an gdbarch_deprecated_fp_regnum and that it is the same,
+ cooked or raw. */
void
-legacy_virtual_frame_pointer (CORE_ADDR pc,
+legacy_virtual_frame_pointer (struct gdbarch *gdbarch,
+ CORE_ADDR pc,
int *frame_regnum,
LONGEST *frame_offset)
{
register and an offset can determine this. I think it should
instead generate a byte code expression as that would work better
with things like Dwarf2's CFI. */
- if (DEPRECATED_FP_REGNUM >= 0 && DEPRECATED_FP_REGNUM < NUM_REGS)
- *frame_regnum = DEPRECATED_FP_REGNUM;
- else if (SP_REGNUM >= 0 && SP_REGNUM < NUM_REGS)
- *frame_regnum = SP_REGNUM;
+ if (gdbarch_deprecated_fp_regnum (gdbarch) >= 0
+ && gdbarch_deprecated_fp_regnum (gdbarch)
+ < gdbarch_num_regs (gdbarch))
+ *frame_regnum = gdbarch_deprecated_fp_regnum (gdbarch);
+ else if (gdbarch_sp_regnum (gdbarch) >= 0
+ && gdbarch_sp_regnum (gdbarch)
+ < gdbarch_num_regs (gdbarch))
+ *frame_regnum = gdbarch_sp_regnum (gdbarch);
else
/* Should this be an internal error? I guess so, it is reflecting
an architectural limitation in the current design. */
- internal_error (__FILE__, __LINE__, "No virtual frame pointer available");
+ internal_error (__FILE__, __LINE__,
+ _("No virtual frame pointer available"));
*frame_offset = 0;
}
-/* Assume the world is sane, every register's virtual and real size
- is identical. */
+/* Return a floating-point format for a floating-point variable of
+ length LEN in bits. If non-NULL, NAME is the name of its type.
+ If no suitable type is found, return NULL. */
-int
-generic_register_size (int regnum)
+const struct floatformat **
+default_floatformat_for_type (struct gdbarch *gdbarch,
+ const char *name, int len)
{
- gdb_assert (regnum >= 0 && regnum < NUM_REGS + NUM_PSEUDO_REGS);
- if (gdbarch_register_type_p (current_gdbarch))
- return TYPE_LENGTH (gdbarch_register_type (current_gdbarch, regnum));
- else
- /* FIXME: cagney/2003-03-01: Once all architectures implement
- gdbarch_register_type(), this entire function can go away. It
- is made obsolete by register_size(). */
- return TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (regnum)); /* OK */
-}
+ const struct floatformat **format = NULL;
-/* Assume all registers are adjacent. */
+ if (len == gdbarch_half_bit (gdbarch))
+ format = gdbarch_half_format (gdbarch);
+ else if (len == gdbarch_float_bit (gdbarch))
+ format = gdbarch_float_format (gdbarch);
+ else if (len == gdbarch_double_bit (gdbarch))
+ format = gdbarch_double_format (gdbarch);
+ else if (len == gdbarch_long_double_bit (gdbarch))
+ format = gdbarch_long_double_format (gdbarch);
+ /* On i386 the 'long double' type takes 96 bits,
+ while the real number of used bits is only 80,
+ both in processor and in memory.
+ The code below accepts the real bit size. */
+ else if (gdbarch_long_double_format (gdbarch) != NULL
+ && len == gdbarch_long_double_format (gdbarch)[0]->totalsize)
+ format = gdbarch_long_double_format (gdbarch);
+ return format;
+}
+\f
int
-generic_register_byte (int regnum)
+generic_convert_register_p (struct gdbarch *gdbarch, int regnum,
+ struct type *type)
{
- int byte;
- int i;
- gdb_assert (regnum >= 0 && regnum < NUM_REGS + NUM_PSEUDO_REGS);
- byte = 0;
- for (i = 0; i < regnum; i++)
- {
- byte += generic_register_size (i);
- }
- return byte;
+ return 0;
}
-\f
int
-legacy_pc_in_sigtramp (CORE_ADDR pc, char *name)
+default_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type)
{
-#if !defined (IN_SIGTRAMP)
- if (SIGTRAMP_START_P ())
- return (pc) >= SIGTRAMP_START (pc) && (pc) < SIGTRAMP_END (pc);
- else
- return name && strcmp ("_sigtramp", name) == 0;
-#else
- return IN_SIGTRAMP (pc, name);
-#endif
+ return 0;
}
int
-legacy_convert_register_p (int regnum, struct type *type)
+generic_instruction_nullified (struct gdbarch *gdbarch,
+ struct regcache *regcache)
{
- return DEPRECATED_REGISTER_CONVERTIBLE (regnum);
+ return 0;
}
-void
-legacy_register_to_value (struct frame_info *frame, int regnum,
- struct type *type, void *to)
+int
+default_remote_register_number (struct gdbarch *gdbarch,
+ int regno)
{
- char from[MAX_REGISTER_SIZE];
- frame_read_register (frame, regnum, from);
- DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL (regnum, type, from, to);
+ return regno;
}
-void
-legacy_value_to_register (struct frame_info *frame, int regnum,
- struct type *type, const void *tmp)
+/* See arch-utils.h. */
+
+int
+default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range)
{
- char to[MAX_REGISTER_SIZE];
- char *from = alloca (TYPE_LENGTH (type));
- memcpy (from, from, TYPE_LENGTH (type));
- DEPRECATED_REGISTER_CONVERT_TO_RAW (type, regnum, from, to);
- put_frame_register (frame, regnum, to);
+ return 0;
}
\f
/* Functions to manipulate the endianness of the target. */
-/* ``target_byte_order'' is only used when non- multi-arch.
- Multi-arch targets obtain the current byte order using the
- TARGET_BYTE_ORDER gdbarch method.
-
- The choice of initial value is entirely arbitrary. During startup,
- the function initialize_current_architecture() updates this value
- based on default byte-order information extracted from BFD. */
-int target_byte_order = BFD_ENDIAN_BIG;
-int target_byte_order_auto = 1;
+static enum bfd_endian target_byte_order_user = BFD_ENDIAN_UNKNOWN;
static const char endian_big[] = "big";
static const char endian_little[] = "little";
static const char endian_auto[] = "auto";
-static const char *endian_enum[] =
+static const char *const endian_enum[] =
{
endian_big,
endian_little,
};
static const char *set_endian_string;
+enum bfd_endian
+selected_byte_order (void)
+{
+ return target_byte_order_user;
+}
+
/* Called by ``show endian''. */
static void
-show_endian (char *args, int from_tty)
-{
- if (TARGET_BYTE_ORDER_AUTO)
- printf_unfiltered ("The target endianness is set automatically (currently %s endian)\n",
- (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? "big" : "little"));
+show_endian (struct ui_file *file, int from_tty, struct cmd_list_element *c,
+ const char *value)
+{
+ if (target_byte_order_user == BFD_ENDIAN_UNKNOWN)
+ if (gdbarch_byte_order (get_current_arch ()) == BFD_ENDIAN_BIG)
+ fprintf_unfiltered (file, _("The target endianness is set automatically "
+ "(currently big endian)\n"));
+ else
+ fprintf_unfiltered (file, _("The target endianness is set automatically "
+ "(currently little endian)\n"));
else
- printf_unfiltered ("The target is assumed to be %s endian\n",
- (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? "big" : "little"));
+ if (target_byte_order_user == BFD_ENDIAN_BIG)
+ fprintf_unfiltered (file,
+ _("The target is assumed to be big endian\n"));
+ else
+ fprintf_unfiltered (file,
+ _("The target is assumed to be little endian\n"));
}
static void
-set_endian (char *ignore_args, int from_tty, struct cmd_list_element *c)
+set_endian (const char *ignore_args, int from_tty, struct cmd_list_element *c)
{
+ struct gdbarch_info info;
+
+ gdbarch_info_init (&info);
+
if (set_endian_string == endian_auto)
{
- target_byte_order_auto = 1;
+ target_byte_order_user = BFD_ENDIAN_UNKNOWN;
+ if (! gdbarch_update_p (info))
+ internal_error (__FILE__, __LINE__,
+ _("set_endian: architecture update failed"));
}
else if (set_endian_string == endian_little)
{
- target_byte_order_auto = 0;
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.byte_order = BFD_ENDIAN_LITTLE;
- if (! gdbarch_update_p (info))
- {
- printf_unfiltered ("Little endian target not supported by GDB\n");
- }
- }
+ info.byte_order = BFD_ENDIAN_LITTLE;
+ if (! gdbarch_update_p (info))
+ printf_unfiltered (_("Little endian target not supported by GDB\n"));
else
- {
- target_byte_order = BFD_ENDIAN_LITTLE;
- }
+ target_byte_order_user = BFD_ENDIAN_LITTLE;
}
else if (set_endian_string == endian_big)
{
- target_byte_order_auto = 0;
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.byte_order = BFD_ENDIAN_BIG;
- if (! gdbarch_update_p (info))
- {
- printf_unfiltered ("Big endian target not supported by GDB\n");
- }
- }
+ info.byte_order = BFD_ENDIAN_BIG;
+ if (! gdbarch_update_p (info))
+ printf_unfiltered (_("Big endian target not supported by GDB\n"));
else
- {
- target_byte_order = BFD_ENDIAN_BIG;
- }
+ target_byte_order_user = BFD_ENDIAN_BIG;
}
else
internal_error (__FILE__, __LINE__,
- "set_endian: bad value");
- show_endian (NULL, from_tty);
+ _("set_endian: bad value"));
+
+ show_endian (gdb_stdout, from_tty, NULL, NULL);
}
-/* Set the endianness from a BFD. */
+/* Given SELECTED, a currently selected BFD architecture, and
+ TARGET_DESC, the current target description, return what
+ architecture to use.
-static void
-set_endian_from_file (bfd *abfd)
-{
- int want;
- if (GDB_MULTI_ARCH)
- internal_error (__FILE__, __LINE__,
- "set_endian_from_file: not for multi-arch");
- if (bfd_big_endian (abfd))
- want = BFD_ENDIAN_BIG;
- else
- want = BFD_ENDIAN_LITTLE;
- if (TARGET_BYTE_ORDER_AUTO)
- target_byte_order = want;
- else if (TARGET_BYTE_ORDER != want)
- warning ("%s endian file does not match %s endian target.",
- want == BFD_ENDIAN_BIG ? "big" : "little",
- TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? "big" : "little");
-}
+ SELECTED may be NULL, in which case we return the architecture
+ associated with TARGET_DESC. If SELECTED specifies a variant
+ of the architecture associated with TARGET_DESC, return the
+ more specific of the two.
+ If SELECTED is a different architecture, but it is accepted as
+ compatible by the target, we can use the target architecture.
-/* Functions to manipulate the architecture of the target */
+ If SELECTED is obviously incompatible, warn the user. */
-enum set_arch { set_arch_auto, set_arch_manual };
+static const struct bfd_arch_info *
+choose_architecture_for_target (const struct target_desc *target_desc,
+ const struct bfd_arch_info *selected)
+{
+ const struct bfd_arch_info *from_target = tdesc_architecture (target_desc);
+ const struct bfd_arch_info *compat1, *compat2;
-int target_architecture_auto = 1;
+ if (selected == NULL)
+ return from_target;
-const char *set_architecture_string;
+ if (from_target == NULL)
+ return selected;
-/* Old way of changing the current architecture. */
+ /* struct bfd_arch_info objects are singletons: that is, there's
+ supposed to be exactly one instance for a given machine. So you
+ can tell whether two are equivalent by comparing pointers. */
+ if (from_target == selected)
+ return selected;
-extern const struct bfd_arch_info bfd_default_arch_struct;
-const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct;
-int (*target_architecture_hook) (const struct bfd_arch_info *ap);
+ /* BFD's 'A->compatible (A, B)' functions return zero if A and B are
+ incompatible. But if they are compatible, it returns the 'more
+ featureful' of the two arches. That is, if A can run code
+ written for B, but B can't run code written for A, then it'll
+ return A.
-static int
-arch_ok (const struct bfd_arch_info *arch)
-{
- if (GDB_MULTI_ARCH)
- internal_error (__FILE__, __LINE__,
- "arch_ok: not multi-arched");
- /* Should be performing the more basic check that the binary is
- compatible with GDB. */
- /* Check with the target that the architecture is valid. */
- return (target_architecture_hook == NULL
- || target_architecture_hook (arch));
-}
+ Some targets (e.g. MIPS as of 2006-12-04) don't fully
+ implement this, instead always returning NULL or the first
+ argument. We detect that case by checking both directions. */
-static void
-set_arch (const struct bfd_arch_info *arch,
- enum set_arch type)
-{
- if (GDB_MULTI_ARCH)
- internal_error (__FILE__, __LINE__,
- "set_arch: not multi-arched");
- switch (type)
+ compat1 = selected->compatible (selected, from_target);
+ compat2 = from_target->compatible (from_target, selected);
+
+ if (compat1 == NULL && compat2 == NULL)
{
- case set_arch_auto:
- if (!arch_ok (arch))
- warning ("Target may not support %s architecture",
- arch->printable_name);
- target_architecture = arch;
- break;
- case set_arch_manual:
- if (!arch_ok (arch))
- {
- printf_unfiltered ("Target does not support `%s' architecture.\n",
- arch->printable_name);
- }
- else
- {
- target_architecture_auto = 0;
- target_architecture = arch;
- }
- break;
+ /* BFD considers the architectures incompatible. Check our
+ target description whether it accepts SELECTED as compatible
+ anyway. */
+ if (tdesc_compatible_p (target_desc, selected))
+ return from_target;
+
+ warning (_("Selected architecture %s is not compatible "
+ "with reported target architecture %s"),
+ selected->printable_name, from_target->printable_name);
+ return selected;
}
- if (gdbarch_debug)
- gdbarch_dump (current_gdbarch, gdb_stdlog);
-}
-/* Set the architecture from arch/machine (deprecated) */
+ if (compat1 == NULL)
+ return compat2;
+ if (compat2 == NULL)
+ return compat1;
+ if (compat1 == compat2)
+ return compat1;
-void
-set_architecture_from_arch_mach (enum bfd_architecture arch,
- unsigned long mach)
-{
- const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach);
- if (GDB_MULTI_ARCH)
- internal_error (__FILE__, __LINE__,
- "set_architecture_from_arch_mach: not multi-arched");
- if (wanted != NULL)
- set_arch (wanted, set_arch_manual);
- else
- internal_error (__FILE__, __LINE__,
- "gdbarch: hardwired architecture/machine not recognized");
+ /* If the two didn't match, but one of them was a default
+ architecture, assume the more specific one is correct. This
+ handles the case where an executable or target description just
+ says "mips", but the other knows which MIPS variant. */
+ if (compat1->the_default)
+ return compat2;
+ if (compat2->the_default)
+ return compat1;
+
+ /* We have no idea which one is better. This is a bug, but not
+ a critical problem; warn the user. */
+ warning (_("Selected architecture %s is ambiguous with "
+ "reported target architecture %s"),
+ selected->printable_name, from_target->printable_name);
+ return selected;
}
-/* Set the architecture from a BFD (deprecated) */
+/* Functions to manipulate the architecture of the target. */
-static void
-set_architecture_from_file (bfd *abfd)
+enum set_arch { set_arch_auto, set_arch_manual };
+
+static const struct bfd_arch_info *target_architecture_user;
+
+static const char *set_architecture_string;
+
+const char *
+selected_architecture_name (void)
{
- const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd);
- if (GDB_MULTI_ARCH)
- internal_error (__FILE__, __LINE__,
- "set_architecture_from_file: not multi-arched");
- if (target_architecture_auto)
- {
- set_arch (wanted, set_arch_auto);
- }
- else if (wanted != target_architecture)
- {
- warning ("%s architecture file may be incompatible with %s target.",
- wanted->printable_name,
- target_architecture->printable_name);
- }
+ if (target_architecture_user == NULL)
+ return NULL;
+ else
+ return set_architecture_string;
}
-
/* Called if the user enters ``show architecture'' without an
- argument. */
+ argument. */
static void
-show_architecture (char *args, int from_tty)
+show_architecture (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
{
- const char *arch;
- arch = TARGET_ARCHITECTURE->printable_name;
- if (target_architecture_auto)
- printf_filtered ("The target architecture is set automatically (currently %s)\n", arch);
+ if (target_architecture_user == NULL)
+ fprintf_filtered (file, _("The target architecture is set "
+ "automatically (currently %s)\n"),
+ gdbarch_bfd_arch_info (get_current_arch ())->printable_name);
else
- printf_filtered ("The target architecture is assumed to be %s\n", arch);
+ fprintf_filtered (file, _("The target architecture is assumed to be %s\n"),
+ set_architecture_string);
}
/* Called if the user enters ``set architecture'' with or without an
- argument. */
+ argument. */
static void
-set_architecture (char *ignore_args, int from_tty, struct cmd_list_element *c)
+set_architecture (const char *ignore_args,
+ int from_tty, struct cmd_list_element *c)
{
+ struct gdbarch_info info;
+
+ gdbarch_info_init (&info);
+
if (strcmp (set_architecture_string, "auto") == 0)
{
- target_architecture_auto = 1;
+ target_architecture_user = NULL;
+ if (!gdbarch_update_p (info))
+ internal_error (__FILE__, __LINE__,
+ _("could not select an architecture automatically"));
}
- else if (GDB_MULTI_ARCH)
+ else
{
- struct gdbarch_info info;
- gdbarch_info_init (&info);
info.bfd_arch_info = bfd_scan_arch (set_architecture_string);
if (info.bfd_arch_info == NULL)
internal_error (__FILE__, __LINE__,
- "set_architecture: bfd_scan_arch failed");
+ _("set_architecture: bfd_scan_arch failed"));
if (gdbarch_update_p (info))
- target_architecture_auto = 0;
+ target_architecture_user = info.bfd_arch_info;
else
- printf_unfiltered ("Architecture `%s' not recognized.\n",
+ printf_unfiltered (_("Architecture `%s' not recognized.\n"),
set_architecture_string);
}
- else
+ show_architecture (gdb_stdout, from_tty, NULL, NULL);
+}
+
+/* Try to select a global architecture that matches "info". Return
+ non-zero if the attempt succeeds. */
+int
+gdbarch_update_p (struct gdbarch_info info)
+{
+ struct gdbarch *new_gdbarch;
+
+ /* Check for the current file. */
+ if (info.abfd == NULL)
+ info.abfd = exec_bfd;
+ if (info.abfd == NULL)
+ info.abfd = core_bfd;
+
+ /* Check for the current target description. */
+ if (info.target_desc == NULL)
+ info.target_desc = target_current_description ();
+
+ new_gdbarch = gdbarch_find_by_info (info);
+
+ /* If there no architecture by that name, reject the request. */
+ if (new_gdbarch == NULL)
{
- const struct bfd_arch_info *arch
- = bfd_scan_arch (set_architecture_string);
- if (arch == NULL)
- internal_error (__FILE__, __LINE__,
- "set_architecture: bfd_scan_arch failed");
- set_arch (arch, set_arch_manual);
+ if (gdbarch_debug)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
+ "Architecture not found\n");
+ return 0;
+ }
+
+ /* If it is the same old architecture, accept the request (but don't
+ swap anything). */
+ if (new_gdbarch == target_gdbarch ())
+ {
+ if (gdbarch_debug)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
+ "Architecture %s (%s) unchanged\n",
+ host_address_to_string (new_gdbarch),
+ gdbarch_bfd_arch_info (new_gdbarch)->printable_name);
+ return 1;
}
- show_architecture (NULL, from_tty);
+
+ /* It's a new architecture, swap it in. */
+ if (gdbarch_debug)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
+ "New architecture %s (%s) selected\n",
+ host_address_to_string (new_gdbarch),
+ gdbarch_bfd_arch_info (new_gdbarch)->printable_name);
+ set_target_gdbarch (new_gdbarch);
+
+ return 1;
+}
+
+/* Return the architecture for ABFD. If no suitable architecture
+ could be find, return NULL. */
+
+struct gdbarch *
+gdbarch_from_bfd (bfd *abfd)
+{
+ struct gdbarch_info info;
+ gdbarch_info_init (&info);
+
+ info.abfd = abfd;
+ return gdbarch_find_by_info (info);
}
/* Set the dynamic target-system-dependent parameters (architecture,
void
set_gdbarch_from_file (bfd *abfd)
{
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.abfd = abfd;
- if (! gdbarch_update_p (info))
- error ("Architecture of file not recognized.\n");
- }
- else
- {
- set_architecture_from_file (abfd);
- set_endian_from_file (abfd);
- }
+ struct gdbarch_info info;
+ struct gdbarch *gdbarch;
+
+ gdbarch_info_init (&info);
+ info.abfd = abfd;
+ info.target_desc = target_current_description ();
+ gdbarch = gdbarch_find_by_info (info);
+
+ if (gdbarch == NULL)
+ error (_("Architecture of file not recognized."));
+ set_target_gdbarch (gdbarch);
}
/* Initialize the current architecture. Update the ``set
static const bfd_target *default_bfd_vec;
#endif
+static enum bfd_endian default_byte_order = BFD_ENDIAN_UNKNOWN;
+
void
initialize_current_architecture (void)
{
const char **arches = gdbarch_printable_names ();
-
- /* determine a default architecture and byte order. */
struct gdbarch_info info;
+
+ /* determine a default architecture and byte order. */
gdbarch_info_init (&info);
- /* Find a default architecture. */
- if (info.bfd_arch_info == NULL
- && default_bfd_arch != NULL)
- info.bfd_arch_info = default_bfd_arch;
- if (info.bfd_arch_info == NULL)
+ /* Find a default architecture. */
+ if (default_bfd_arch == NULL)
{
/* Choose the architecture by taking the first one
- alphabetically. */
+ alphabetically. */
const char *chosen = arches[0];
const char **arch;
for (arch = arches; *arch != NULL; arch++)
}
if (chosen == NULL)
internal_error (__FILE__, __LINE__,
- "initialize_current_architecture: No arch");
- info.bfd_arch_info = bfd_scan_arch (chosen);
- if (info.bfd_arch_info == NULL)
+ _("initialize_current_architecture: No arch"));
+ default_bfd_arch = bfd_scan_arch (chosen);
+ if (default_bfd_arch == NULL)
internal_error (__FILE__, __LINE__,
- "initialize_current_architecture: Arch not found");
+ _("initialize_current_architecture: Arch not found"));
}
+ info.bfd_arch_info = default_bfd_arch;
+
/* Take several guesses at a byte order. */
- if (info.byte_order == BFD_ENDIAN_UNKNOWN
+ if (default_byte_order == BFD_ENDIAN_UNKNOWN
&& default_bfd_vec != NULL)
{
- /* Extract BFD's default vector's byte order. */
+ /* Extract BFD's default vector's byte order. */
switch (default_bfd_vec->byteorder)
{
case BFD_ENDIAN_BIG:
- info.byte_order = BFD_ENDIAN_BIG;
+ default_byte_order = BFD_ENDIAN_BIG;
break;
case BFD_ENDIAN_LITTLE:
- info.byte_order = BFD_ENDIAN_LITTLE;
+ default_byte_order = BFD_ENDIAN_LITTLE;
break;
default:
break;
}
}
- if (info.byte_order == BFD_ENDIAN_UNKNOWN)
+ if (default_byte_order == BFD_ENDIAN_UNKNOWN)
{
- /* look for ``*el-*'' in the target name. */
+ /* look for ``*el-*'' in the target name. */
const char *chp;
chp = strchr (target_name, '-');
if (chp != NULL
&& chp - 2 >= target_name
- && strncmp (chp - 2, "el", 2) == 0)
- info.byte_order = BFD_ENDIAN_LITTLE;
+ && startswith (chp - 2, "el"))
+ default_byte_order = BFD_ENDIAN_LITTLE;
}
- if (info.byte_order == BFD_ENDIAN_UNKNOWN)
+ if (default_byte_order == BFD_ENDIAN_UNKNOWN)
{
/* Wire it to big-endian!!! */
- info.byte_order = BFD_ENDIAN_BIG;
+ default_byte_order = BFD_ENDIAN_BIG;
}
- if (GDB_MULTI_ARCH)
- {
- if (! gdbarch_update_p (info))
- {
- internal_error (__FILE__, __LINE__,
- "initialize_current_architecture: Selection of initial architecture failed");
- }
- }
- else
- {
- /* If the multi-arch logic comes up with a byte-order (from BFD)
- use it for the non-multi-arch case. */
- if (info.byte_order != BFD_ENDIAN_UNKNOWN)
- target_byte_order = info.byte_order;
- initialize_non_multiarch ();
- }
+ info.byte_order = default_byte_order;
+ info.byte_order_for_code = info.byte_order;
+
+ if (! gdbarch_update_p (info))
+ internal_error (__FILE__, __LINE__,
+ _("initialize_current_architecture: Selection of "
+ "initial architecture failed"));
/* Create the ``set architecture'' command appending ``auto'' to the
- list of architectures. */
+ list of architectures. */
{
- struct cmd_list_element *c;
- /* Append ``auto''. */
+ /* Append ``auto''. */
int nr;
for (nr = 0; arches[nr] != NULL; nr++);
- arches = xrealloc (arches, sizeof (char*) * (nr + 2));
+ arches = XRESIZEVEC (const char *, arches, nr + 2);
arches[nr + 0] = "auto";
arches[nr + 1] = NULL;
- /* FIXME: add_set_enum_cmd() uses an array of ``char *'' instead
- of ``const char *''. We just happen to know that the casts are
- safe. */
- c = add_set_enum_cmd ("architecture", class_support,
- arches, &set_architecture_string,
- "Set architecture of target.",
- &setlist);
- set_cmd_sfunc (c, set_architecture);
+ add_setshow_enum_cmd ("architecture", class_support,
+ arches, &set_architecture_string,
+ _("Set architecture of target."),
+ _("Show architecture of target."), NULL,
+ set_architecture, show_architecture,
+ &setlist, &showlist);
add_alias_cmd ("processor", "architecture", class_support, 1, &setlist);
- /* Don't use set_from_show - need to print both auto/manual and
- current setting. */
- add_cmd ("architecture", class_support, show_architecture,
- "Show the current target architecture", &showlist);
}
}
/* Initialize a gdbarch info to values that will be automatically
overridden. Note: Originally, this ``struct info'' was initialized
- using memset(0). Unfortunatly, that ran into problems, namely
+ using memset(0). Unfortunately, that ran into problems, namely
BFD_ENDIAN_BIG is zero. An explicit initialization function that
can explicitly set each field to a well defined value is used. */
{
memset (info, 0, sizeof (struct gdbarch_info));
info->byte_order = BFD_ENDIAN_UNKNOWN;
- info->osabi = GDB_OSABI_UNINITIALIZED;
+ info->byte_order_for_code = info->byte_order;
+}
+
+/* Similar to init, but this time fill in the blanks. Information is
+ obtained from the global "set ..." options and explicitly
+ initialized INFO fields. */
+
+void
+gdbarch_info_fill (struct gdbarch_info *info)
+{
+ /* "(gdb) set architecture ...". */
+ if (info->bfd_arch_info == NULL
+ && target_architecture_user)
+ info->bfd_arch_info = target_architecture_user;
+ /* From the file. */
+ if (info->bfd_arch_info == NULL
+ && info->abfd != NULL
+ && bfd_get_arch (info->abfd) != bfd_arch_unknown
+ && bfd_get_arch (info->abfd) != bfd_arch_obscure)
+ info->bfd_arch_info = bfd_get_arch_info (info->abfd);
+ /* From the target. */
+ if (info->target_desc != NULL)
+ info->bfd_arch_info = choose_architecture_for_target
+ (info->target_desc, info->bfd_arch_info);
+ /* From the default. */
+ if (info->bfd_arch_info == NULL)
+ info->bfd_arch_info = default_bfd_arch;
+
+ /* "(gdb) set byte-order ...". */
+ if (info->byte_order == BFD_ENDIAN_UNKNOWN
+ && target_byte_order_user != BFD_ENDIAN_UNKNOWN)
+ info->byte_order = target_byte_order_user;
+ /* From the INFO struct. */
+ if (info->byte_order == BFD_ENDIAN_UNKNOWN
+ && info->abfd != NULL)
+ info->byte_order = (bfd_big_endian (info->abfd) ? BFD_ENDIAN_BIG
+ : bfd_little_endian (info->abfd) ? BFD_ENDIAN_LITTLE
+ : BFD_ENDIAN_UNKNOWN);
+ /* From the default. */
+ if (info->byte_order == BFD_ENDIAN_UNKNOWN)
+ info->byte_order = default_byte_order;
+ info->byte_order_for_code = info->byte_order;
+ /* Wire the default to the last selected byte order. */
+ default_byte_order = info->byte_order;
+
+ /* "(gdb) set osabi ...". Handled by gdbarch_lookup_osabi. */
+ /* From the manual override, or from file. */
+ if (info->osabi == GDB_OSABI_UNKNOWN)
+ info->osabi = gdbarch_lookup_osabi (info->abfd);
+ /* From the target. */
+
+ if (info->osabi == GDB_OSABI_UNKNOWN && info->target_desc != NULL)
+ info->osabi = tdesc_osabi (info->target_desc);
+ /* From the configured default. */
+#ifdef GDB_OSABI_DEFAULT
+ if (info->osabi == GDB_OSABI_UNKNOWN)
+ info->osabi = GDB_OSABI_DEFAULT;
+#endif
+ /* If we still don't know which osabi to pick, pick none. */
+ if (info->osabi == GDB_OSABI_UNKNOWN)
+ info->osabi = GDB_OSABI_NONE;
+
+ /* Must have at least filled in the architecture. */
+ gdb_assert (info->bfd_arch_info != NULL);
+}
+
+/* Return "current" architecture. If the target is running, this is
+ the architecture of the selected frame. Otherwise, the "current"
+ architecture defaults to the target architecture.
+
+ This function should normally be called solely by the command
+ interpreter routines to determine the architecture to execute a
+ command in. */
+struct gdbarch *
+get_current_arch (void)
+{
+ if (has_stack_frames ())
+ return get_frame_arch (get_selected_frame (NULL));
+ else
+ return target_gdbarch ();
+}
+
+int
+default_has_shared_address_space (struct gdbarch *gdbarch)
+{
+ /* Simply say no. In most unix-like targets each inferior/process
+ has its own address space. */
+ return 0;
+}
+
+int
+default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr,
+ std::string *msg)
+{
+ /* We don't know if maybe the target has some way to do fast
+ tracepoints that doesn't need gdbarch, so always say yes. */
+ if (msg)
+ msg->clear ();
+ return 1;
+}
+
+const gdb_byte *
+default_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
+ int *lenptr)
+{
+ int kind = gdbarch_breakpoint_kind_from_pc (gdbarch, pcptr);
+
+ return gdbarch_sw_breakpoint_from_kind (gdbarch, kind, lenptr);
+}
+int
+default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch,
+ struct regcache *regcache,
+ CORE_ADDR *pcptr)
+{
+ return gdbarch_breakpoint_kind_from_pc (gdbarch, pcptr);
+}
+
+
+void
+default_gen_return_address (struct gdbarch *gdbarch,
+ struct agent_expr *ax, struct axs_value *value,
+ CORE_ADDR scope)
+{
+ error (_("This architecture has no method to collect a return address."));
+}
+
+int
+default_return_in_first_hidden_param_p (struct gdbarch *gdbarch,
+ struct type *type)
+{
+ /* Usually, the return value's address is stored the in the "first hidden"
+ parameter if the return value should be passed by reference, as
+ specified in ABI. */
+ return language_pass_by_reference (type);
+}
+
+int default_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr)
+{
+ return 0;
+}
+
+int default_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr)
+{
+ return 0;
+}
+
+int default_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr)
+{
+ return 0;
+}
+
+void
+default_skip_permanent_breakpoint (struct regcache *regcache)
+{
+ struct gdbarch *gdbarch = regcache->arch ();
+ CORE_ADDR current_pc = regcache_read_pc (regcache);
+ int bp_len;
+
+ gdbarch_breakpoint_from_pc (gdbarch, ¤t_pc, &bp_len);
+ current_pc += bp_len;
+ regcache_write_pc (regcache, current_pc);
+}
+
+CORE_ADDR
+default_infcall_mmap (CORE_ADDR size, unsigned prot)
+{
+ error (_("This target does not support inferior memory allocation by mmap."));
+}
+
+void
+default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size)
+{
+ /* Memory reserved by inferior mmap is kept leaked. */
+}
+
+/* -mcmodel=large is used so that no GOT (Global Offset Table) is needed to be
+ created in inferior memory by GDB (normally it is set by ld.so). */
+
+std::string
+default_gcc_target_options (struct gdbarch *gdbarch)
+{
+ return string_printf ("-m%d%s", gdbarch_ptr_bit (gdbarch),
+ (gdbarch_ptr_bit (gdbarch) == 64
+ ? " -mcmodel=large" : ""));
+}
+
+/* gdbarch gnu_triplet_regexp method. */
+
+const char *
+default_gnu_triplet_regexp (struct gdbarch *gdbarch)
+{
+ return gdbarch_bfd_arch_info (gdbarch)->arch_name;
}
-/* */
+/* Default method for gdbarch_addressable_memory_unit_size. By default, a memory byte has
+ a size of 1 octet. */
+
+int
+default_addressable_memory_unit_size (struct gdbarch *gdbarch)
+{
+ return 1;
+}
-extern initialize_file_ftype _initialize_gdbarch_utils; /* -Wmissing-prototypes */
+void
+default_guess_tracepoint_registers (struct gdbarch *gdbarch,
+ struct regcache *regcache,
+ CORE_ADDR addr)
+{
+ int pc_regno = gdbarch_pc_regnum (gdbarch);
+ gdb_byte *regs;
+
+ /* This guessing code below only works if the PC register isn't
+ a pseudo-register. The value of a pseudo-register isn't stored
+ in the (non-readonly) regcache -- instead it's recomputed
+ (probably from some other cached raw register) whenever the
+ register is read. In this case, a custom method implementation
+ should be used by the architecture. */
+ if (pc_regno < 0 || pc_regno >= gdbarch_num_regs (gdbarch))
+ return;
+
+ regs = (gdb_byte *) alloca (register_size (gdbarch, pc_regno));
+ store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
+ gdbarch_byte_order (gdbarch), addr);
+ regcache->raw_supply (pc_regno, regs);
+}
+
+int
+default_print_insn (bfd_vma memaddr, disassemble_info *info)
+{
+ disassembler_ftype disassemble_fn;
+
+ disassemble_fn = disassembler (info->arch, info->endian == BFD_ENDIAN_BIG,
+ info->mach, exec_bfd);
+
+ gdb_assert (disassemble_fn != NULL);
+ return (*disassemble_fn) (memaddr, info);
+}
+
+/* See arch-utils.h. */
+
+CORE_ADDR
+gdbarch_skip_prologue_noexcept (gdbarch *gdbarch, CORE_ADDR pc) noexcept
+{
+ CORE_ADDR new_pc = pc;
+
+ try
+ {
+ new_pc = gdbarch_skip_prologue (gdbarch, pc);
+ }
+ catch (const gdb_exception &ex)
+ {}
+
+ return new_pc;
+}
+
+/* See arch-utils.h. */
+
+bool
+default_in_indirect_branch_thunk (gdbarch *gdbarch, CORE_ADDR pc)
+{
+ return false;
+}
+
+/* See arch-utils.h. */
+
+ULONGEST
+default_type_align (struct gdbarch *gdbarch, struct type *type)
+{
+ return 0;
+}
+
+/* See arch-utils.h. */
+
+std::string
+default_get_pc_address_flags (frame_info *frame, CORE_ADDR pc)
+{
+ return "";
+}
void
_initialize_gdbarch_utils (void)
{
- struct cmd_list_element *c;
- c = add_set_enum_cmd ("endian", class_support,
- endian_enum, &set_endian_string,
- "Set endianness of target.",
- &setlist);
- set_cmd_sfunc (c, set_endian);
- /* Don't use set_from_show - need to print both auto/manual and
- current setting. */
- add_cmd ("endian", class_support, show_endian,
- "Show the current byte-order", &showlist);
+ add_setshow_enum_cmd ("endian", class_support,
+ endian_enum, &set_endian_string,
+ _("Set endianness of target."),
+ _("Show endianness of target."),
+ NULL, set_endian, show_endian,
+ &setlist, &showlist);
}
projects / deliverable / binutils-gdb.git / blobdiff