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7a10774786
* arch-utils.c (target_byte_order_user): Renamed from target_byte_order. (target_byte_order_auto, selected_byte_order): Removed. (show_endian): Check target_byte_order_user. (set_endian): Always update the architecture. Set target_byte_order_user after success. (target_architecture_auto): Removed. (target_architecture_user): New. (selected_architecture_name, show_architecture): Check it. (set_architecture): Set target_architecture_user after success. (gdbarch_from_bfd): Check the argument. (default_byte_order): New. (initialize_current_architecture): Set the global default architecture and endianness. (gdbarch_info_fill): Remove GDBARCH argument. Do not check the previous architecture. Use exec_bfd, global selected architecture and endianness, and global defaults. * arch-utils.h (selected_byte_order): Remove prototype. (gdbarch_info_fill): Update. * exec.c (exec_file_attach): Update the architecture after removing the current file. * gdbarch.sh: Update comments. (find_arch_by_info): Remove OLD_GDBARCH argument. Update call to gdbarch_info_fill. (gdbarch_find_by_info): Update call to find_arch_by_info. * gdbarch.h, gdbarch.c: Regenerated. * remote-sim.c (gdbsim_open): Use TARGET_BYTE_ORDER. gdb/doc/ * gdbint.texinfo (Target Architecture Definition): Add new Initializing a New Architecture section.
150 lines
5.3 KiB
C
150 lines
5.3 KiB
C
/* Dynamic architecture support for GDB, the GNU debugger.
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Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004 Free Software
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Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#ifndef GDBARCH_UTILS_H
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#define GDBARCH_UTILS_H
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struct gdbarch;
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struct frame_info;
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struct minimal_symbol;
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struct type;
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struct gdbarch_info;
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/* gdbarch trace variable */
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extern int gdbarch_debug;
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/* An implementation of return_value that props up architectures still
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using USE_STRUCT_RETURN, EXTRACT_RETURN_VALUE and
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STORE_RETURN_VALUE. See also the hacks in "stack.c". */
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enum return_value_convention legacy_return_value (struct gdbarch *gdbarch,
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struct type *valtype,
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struct regcache *regcache,
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gdb_byte *readbuf,
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const gdb_byte *writebuf);
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/* Implementation of extract return value that grubs around in the
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register cache. */
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extern gdbarch_extract_return_value_ftype legacy_extract_return_value;
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/* Implementation of store return value that grubs the register cache. */
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extern gdbarch_store_return_value_ftype legacy_store_return_value;
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/* To return any structure or union type by value, store it at the
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address passed as an invisible first argument to the function. */
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extern gdbarch_deprecated_use_struct_convention_ftype always_use_struct_convention;
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/* Typical remote_translate_xfer_address */
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extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address;
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/* The only possible cases for inner_than. */
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extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
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extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
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/* Floating point values. */
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extern const struct floatformat *default_float_format (struct gdbarch *gdbarch);
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extern const struct floatformat *default_double_format (struct gdbarch *gdbarch);
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/* Identity functions on a CORE_ADDR. Just return the "addr". */
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extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
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extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity;
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/* No-op conversion of reg to regnum. */
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extern int no_op_reg_to_regnum (int reg);
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/* Do nothing version of elf_make_msymbol_special. */
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void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym);
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/* Do nothing version of coff_make_msymbol_special. */
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void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
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/* Version of cannot_fetch_register() / cannot_store_register() that
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always fails. */
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int cannot_register_not (int regnum);
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/* Legacy version of target_virtual_frame_pointer(). Assumes that
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there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or
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raw. */
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extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
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extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
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extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
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CORE_ADDR pc);
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extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name);
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extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc);
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/* Assume that the world is sane, a registers raw and virtual size
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both match its type. */
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extern int generic_register_size (int regnum);
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/* Assume that the world is sane, the registers are all adjacent. */
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extern int generic_register_byte (int regnum);
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/* Prop up old targets that use various sigtramp macros. */
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extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name);
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/* By default, registers are not convertible. */
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extern int generic_convert_register_p (int regnum, struct type *type);
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extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch,
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struct type *type);
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extern int generic_instruction_nullified (struct gdbarch *gdbarch,
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struct regcache *regcache);
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/* For compatibility with older architectures, returns
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(LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
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name. */
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extern int legacy_register_sim_regno (int regnum);
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/* Return the selected architecture's name, or NULL if no architecture
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was explicitly selected. */
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extern const char *selected_architecture_name (void);
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/* Initialize a ``struct info''. Can't use memset(0) since some
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default values are not zero. "fill" takes all available
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information and fills in any unspecified fields. */
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extern void gdbarch_info_init (struct gdbarch_info *info);
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/* Similar to init, but this time fill in the blanks. Information is
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obtained from the global "set ..." options and explicitly
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initialized INFO fields. */
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extern void gdbarch_info_fill (struct gdbarch_info *info);
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/* Return the architecture for ABFD. If no suitable architecture
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could be find, return NULL. */
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extern struct gdbarch *gdbarch_from_bfd (bfd *abfd);
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#endif
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