debd34438d
(alloca): Declare return type on SPARC, since Sun doesn't. (*_BYTE_ORDER): Improve comment: *must* be defined.
774 lines
19 KiB
C
774 lines
19 KiB
C
/* Basic, host-specific, and target-specific definitions for GDB.
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Copyright (C) 1986, 1989, 1991 Free Software 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (DEFS_H)
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#define DEFS_H 1
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#include <stdio.h>
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/* First include ansidecl.h so we can use the various macro definitions
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here and in all subsequent file inclusions. */
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#include "ansidecl.h"
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/* An address in the program being debugged. Host byte order. */
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typedef unsigned int CORE_ADDR;
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#define min(a, b) ((a) < (b) ? (a) : (b))
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#define max(a, b) ((a) > (b) ? (a) : (b))
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/* The character C++ uses to build identifiers that must be unique from
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the program's identifiers (such as $this and $$vptr). */
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#define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
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#include <errno.h> /* System call error return status */
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extern int quit_flag;
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extern int immediate_quit;
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extern void
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quit PARAMS ((void));
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#define QUIT { if (quit_flag) quit (); }
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/* Notes on classes: class_alias is for alias commands which are not
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abbreviations of the original command. */
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enum command_class
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{
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/* Special args to help_list */
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all_classes = -2, all_commands = -1,
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/* Classes of commands */
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no_class = -1, class_run = 0, class_vars, class_stack,
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class_files, class_support, class_info, class_breakpoint,
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class_alias, class_obscure, class_user
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};
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/* the cleanup list records things that have to be undone
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if an error happens (descriptors to be closed, memory to be freed, etc.)
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Each link in the chain records a function to call and an
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argument to give it.
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Use make_cleanup to add an element to the cleanup chain.
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Use do_cleanups to do all cleanup actions back to a given
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point in the chain. Use discard_cleanups to remove cleanups
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from the chain back to a given point, not doing them. */
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struct cleanup
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{
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struct cleanup *next;
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void (*function) PARAMS ((PTR));
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PTR arg;
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};
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/* From blockframe.c */
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extern int
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inside_entry_func PARAMS ((CORE_ADDR));
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extern int
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inside_entry_file PARAMS ((CORE_ADDR addr));
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extern int
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inside_main_func PARAMS ((CORE_ADDR pc));
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/* From cplus-dem.c */
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extern char *
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cplus_demangle PARAMS ((const char *, int));
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extern char *
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cplus_mangle_opname PARAMS ((char *, int));
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/* From libmmalloc.a (memory mapped malloc library) */
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extern PTR
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mmalloc_attach PARAMS ((int, PTR));
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extern PTR
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mmalloc_detach PARAMS ((PTR));
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extern PTR
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mmalloc PARAMS ((PTR, long));
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extern PTR
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mrealloc PARAMS ((PTR, PTR, long));
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extern void
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mfree PARAMS ((PTR, PTR));
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extern int
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mmalloc_setkey PARAMS ((PTR, int, PTR));
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extern PTR
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mmalloc_getkey PARAMS ((PTR, int));
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/* From utils.c */
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extern char *
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demangle_and_match PARAMS ((const char *, const char *, int));
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extern int
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strcmp_iw PARAMS ((const char *, const char *));
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extern char *
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safe_strerror PARAMS ((int));
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extern char *
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safe_strsignal PARAMS ((int));
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extern void
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init_malloc PARAMS ((PTR));
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extern void
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request_quit PARAMS ((int));
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extern void
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do_cleanups PARAMS ((struct cleanup *));
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extern void
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discard_cleanups PARAMS ((struct cleanup *));
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/* The bare make_cleanup function is one of those rare beasts that
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takes almost any type of function as the first arg and anything that
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will fit in a "void *" as the second arg.
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Should be, once all calls and called-functions are cleaned up:
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extern struct cleanup *
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make_cleanup PARAMS ((void (*function) (PTR), PTR));
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Until then, lint and/or various type-checking compiler options will
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complain about make_cleanup calls. It'd be wrong to just cast things,
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since the type actually passed when the function is called would be
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wrong. */
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extern struct cleanup *
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make_cleanup ();
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extern struct cleanup *
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save_cleanups PARAMS ((void));
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extern void
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restore_cleanups PARAMS ((struct cleanup *));
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extern void
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free_current_contents PARAMS ((char **));
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extern void
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null_cleanup PARAMS ((char **));
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extern int
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myread PARAMS ((int, char *, int));
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extern int
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query ();
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extern void
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wrap_here PARAMS ((char *));
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extern void
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reinitialize_more_filter PARAMS ((void));
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extern int
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print_insn PARAMS ((CORE_ADDR, FILE *));
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extern void
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fputs_filtered PARAMS ((const char *, FILE *));
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extern void
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puts_filtered PARAMS ((char *));
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extern void
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fprintf_filtered ();
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extern void
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printf_filtered ();
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extern void
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print_spaces PARAMS ((int, FILE *));
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extern void
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print_spaces_filtered PARAMS ((int, FILE *));
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extern char *
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n_spaces PARAMS ((int));
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extern void
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printchar PARAMS ((int, FILE *, int));
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extern char *
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strdup_demangled PARAMS ((const char *));
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extern void
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fprint_symbol PARAMS ((FILE *, char *));
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extern void
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fputs_demangled PARAMS ((char *, FILE *, int));
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extern void
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perror_with_name PARAMS ((char *));
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extern void
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print_sys_errmsg PARAMS ((char *, int));
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/* From regex.c */
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extern char *
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re_comp PARAMS ((char *));
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/* From symfile.c */
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extern void
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symbol_file_command PARAMS ((char *, int));
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/* From main.c */
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extern char *
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skip_quoted PARAMS ((char *));
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extern char *
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gdb_readline PARAMS ((char *));
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extern char *
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command_line_input PARAMS ((char *, int));
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extern void
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print_prompt PARAMS ((void));
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extern int
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batch_mode PARAMS ((void));
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extern int
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input_from_terminal_p PARAMS ((void));
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extern int
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catch_errors PARAMS ((int (*) (char *), char *, char *));
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/* From printcmd.c */
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extern void
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set_next_address PARAMS ((CORE_ADDR));
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extern void
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print_address_symbolic PARAMS ((CORE_ADDR, FILE *, int, char *));
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extern void
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print_address PARAMS ((CORE_ADDR, FILE *));
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/* From source.c */
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extern int
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openp PARAMS ((char *, int, char *, int, int, char **));
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extern void
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mod_path PARAMS ((char *, char **));
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extern void
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directory_command PARAMS ((char *, int));
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extern void
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init_source_path PARAMS ((void));
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/* From findvar.c */
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extern int
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read_relative_register_raw_bytes PARAMS ((int, char *));
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/* From readline (but not in any readline .h files). */
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extern char *
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tilde_expand PARAMS ((char *));
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/* Structure for saved commands lines
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(for breakpoints, defined commands, etc). */
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struct command_line
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{
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struct command_line *next;
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char *line;
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};
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extern struct command_line *
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read_command_lines PARAMS ((void));
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extern void
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free_command_lines PARAMS ((struct command_line **));
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/* String containing the current directory (what getwd would return). */
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extern char *current_directory;
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/* Default radixes for input and output. Only some values supported. */
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extern unsigned input_radix;
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extern unsigned output_radix;
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/* Baud rate specified for communication with serial target systems. */
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extern char *baud_rate;
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/* Languages represented in the symbol table and elsewhere. */
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enum language
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{
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language_unknown, /* Language not known */
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language_auto, /* Placeholder for automatic setting */
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language_c, /* C */
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language_cplus, /* C++ */
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language_m2 /* Modula-2 */
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};
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/* Return a format string for printf that will print a number in the local
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(language-specific) hexadecimal format. Result is static and is
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overwritten by the next call. local_hex_format_custom takes printf
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options like "08" or "l" (to produce e.g. %08x or %lx). */
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#define local_hex_format() (current_language->la_hex_format)
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extern char *
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local_hex_format_custom PARAMS ((char *)); /* language.c */
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/* Return a string that contains a number formatted in the local
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(language-specific) hexadecimal format. Result is static and is
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overwritten by the next call. local_hex_string_custom takes printf
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options like "08" or "l". */
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extern char *
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local_hex_string PARAMS ((int)); /* language.c */
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extern char *
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local_hex_string_custom PARAMS ((int, char *)); /* language.c */
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/* Host machine definition. This will be a symlink to one of the
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xm-*.h files, built by the `configure' script. */
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#include "xm.h"
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/* If the xm.h file did not define the mode string used to open the
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files, assume that binary files are opened the same way as text
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files */
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#ifndef FOPEN_RB
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#include "fopen-same.h"
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#endif
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/*
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* Allow things in gdb to be declared "const". If compiling ANSI, it
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* just works. If compiling with gcc but non-ansi, redefine to __const__.
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* If non-ansi, non-gcc, then eliminate "const" entirely, making those
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* objects be read-write rather than read-only.
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*/
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#ifndef const
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#ifndef __STDC__
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# ifdef __GNUC__
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# define const __const__
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# else
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# define const /*nothing*/
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# endif /* GNUC */
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#endif /* STDC */
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#endif /* const */
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#ifndef volatile
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#ifndef __STDC__
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# ifdef __GNUC__
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# define volatile __volatile__
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# else
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# define volatile /*nothing*/
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# endif /* GNUC */
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#endif /* STDC */
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#endif /* volatile */
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/* Some compilers (many AT&T SVR4 compilers for instance), do not accept
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declarations of functions that never return (exit for instance) as
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"volatile void". For such compilers "NORETURN" can be defined away
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to keep them happy */
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#ifndef NORETURN
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# ifdef __lucid
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# define NORETURN /*nothing*/
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# else
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# define NORETURN volatile
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# endif
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#endif
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/* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
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#if !defined (UINT_MAX)
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#define UINT_MAX 0xffffffff
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#endif
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#if !defined (LONG_MAX)
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#define LONG_MAX 0x7fffffff
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#endif
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#if !defined (INT_MAX)
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#define INT_MAX 0x7fffffff
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#endif
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#if !defined (INT_MIN)
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/* Two's complement, 32 bit. */
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#define INT_MIN -0x80000000
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#endif
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/* Number of bits in a char or unsigned char for the target machine.
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Just like CHAR_BIT in <limits.h> but describes the target machine. */
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#if !defined (TARGET_CHAR_BIT)
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#define TARGET_CHAR_BIT 8
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#endif
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/* Number of bits in a short or unsigned short for the target machine. */
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#if !defined (TARGET_SHORT_BIT)
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#define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
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#endif
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/* Number of bits in an int or unsigned int for the target machine. */
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#if !defined (TARGET_INT_BIT)
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#define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
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#endif
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/* Number of bits in a long or unsigned long for the target machine. */
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#if !defined (TARGET_LONG_BIT)
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#define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
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#endif
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/* Number of bits in a long long or unsigned long long for the target machine. */
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#if !defined (TARGET_LONG_LONG_BIT)
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#define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
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#endif
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/* Number of bits in a float for the target machine. */
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#if !defined (TARGET_FLOAT_BIT)
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#define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
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#endif
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/* Number of bits in a double for the target machine. */
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#if !defined (TARGET_DOUBLE_BIT)
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#define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
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#endif
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/* Number of bits in a long double for the target machine. */
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#if !defined (TARGET_LONG_DOUBLE_BIT)
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#define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
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#endif
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/* Number of bits in a "complex" for the target machine. */
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#if !defined (TARGET_COMPLEX_BIT)
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#define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
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#endif
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/* Number of bits in a "double complex" for the target machine. */
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#if !defined (TARGET_DOUBLE_COMPLEX_BIT)
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#define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
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#endif
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/* Number of bits in a pointer for the target machine */
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#if !defined (TARGET_PTR_BIT)
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#define TARGET_PTR_BIT TARGET_INT_BIT
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#endif
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/* Convert a LONGEST to an int. This is used in contexts (e.g. number
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of arguments to a function, number in a value history, register
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number, etc.) where the value must not be larger than can fit
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in an int. */
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#if !defined (longest_to_int)
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#if defined (LONG_LONG)
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#define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \
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? (error ("Value out of range."),0) : (int) (x))
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#else /* No LONG_LONG. */
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/* Assume sizeof (int) == sizeof (long). */
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#define longest_to_int(x) ((int) (x))
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#endif /* No LONG_LONG. */
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||
#endif /* No longest_to_int. */
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||
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||
/* This should not be a typedef, because "unsigned LONGEST" needs
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||
to work. LONG_LONG is defined if the host has "long long". */
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||
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#ifndef LONGEST
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# ifdef LONG_LONG
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# define LONGEST long long
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# else
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# define LONGEST long
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# endif
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#endif
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/* Assorted functions we can declare, now that const and volatile are
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||
defined. */
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||
extern char *
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||
savestring PARAMS ((const char *, int));
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||
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extern char *
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msavestring PARAMS ((void *, const char *, int));
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||
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||
extern char *
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||
strsave PARAMS ((const char *));
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||
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||
extern char *
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||
mstrsave PARAMS ((void *, const char *));
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||
|
||
extern char *
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||
concat PARAMS ((char *, ...));
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||
|
||
extern PTR
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||
xmalloc PARAMS ((long));
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||
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||
extern PTR
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||
xrealloc PARAMS ((PTR, long));
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||
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||
extern PTR
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||
xmmalloc PARAMS ((PTR, long));
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||
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||
extern PTR
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||
xmrealloc PARAMS ((PTR, PTR, long));
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||
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||
extern PTR
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||
mmalloc PARAMS ((PTR, long));
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||
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||
extern PTR
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||
mrealloc PARAMS ((PTR, PTR, long));
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||
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||
extern void
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mfree PARAMS ((PTR, PTR));
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||
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||
extern int
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||
mmcheck PARAMS ((PTR, void (*) (void)));
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||
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extern int
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mmtrace PARAMS ((void));
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||
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extern int
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||
parse_escape PARAMS ((char **));
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||
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||
extern const char * const reg_names[];
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||
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||
extern NORETURN void /* Does not return to the caller. */
|
||
error ();
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||
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||
extern NORETURN void /* Does not return to the caller. */
|
||
fatal ();
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||
|
||
extern NORETURN void /* Not specified as volatile in ... */
|
||
exit PARAMS ((int)); /* 4.10.4.3 */
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||
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||
extern NORETURN void /* Does not return to the caller. */
|
||
nomem PARAMS ((long));
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||
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||
extern NORETURN void /* Does not return to the caller. */
|
||
return_to_top_level PARAMS ((void));
|
||
|
||
extern void
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||
warning_setup PARAMS ((void));
|
||
|
||
extern void
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||
warning ();
|
||
|
||
/* Global functions from other, non-gdb GNU thingies (libiberty for
|
||
instance) */
|
||
|
||
extern char *
|
||
basename PARAMS ((char *));
|
||
|
||
extern char *
|
||
getenv PARAMS ((CONST char *));
|
||
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extern char **
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buildargv PARAMS ((char *));
|
||
|
||
extern void
|
||
freeargv PARAMS ((char **));
|
||
|
||
extern char *
|
||
strerrno PARAMS ((int));
|
||
|
||
extern char *
|
||
strsigno PARAMS ((int));
|
||
|
||
extern int
|
||
errno_max PARAMS ((void));
|
||
|
||
extern int
|
||
signo_max PARAMS ((void));
|
||
|
||
extern int
|
||
strtoerrno PARAMS ((char *));
|
||
|
||
extern int
|
||
strtosigno PARAMS ((char *));
|
||
|
||
extern char *
|
||
strsignal PARAMS ((int));
|
||
|
||
/* From other system libraries */
|
||
|
||
#ifndef PSIGNAL_IN_SIGNAL_H
|
||
extern void
|
||
psignal PARAMS ((unsigned, char *));
|
||
#endif
|
||
|
||
/* For now, we can't include <stdlib.h> because it conflicts with
|
||
"../include/getopt.h". (FIXME)
|
||
|
||
However, if a function is defined in the ANSI C standard and a prototype
|
||
for that function is defined and visible in any header file in an ANSI
|
||
conforming environment, then that prototype must match the definition in
|
||
the ANSI standard. So we can just duplicate them here without conflict,
|
||
since they must be the same in all conforming ANSI environments. If
|
||
these cause problems, then the environment is not ANSI conformant. */
|
||
|
||
#ifdef __STDC__
|
||
#include <stddef.h>
|
||
#endif
|
||
|
||
extern int
|
||
fclose PARAMS ((FILE *stream)); /* 4.9.5.1 */
|
||
|
||
extern void
|
||
perror PARAMS ((const char *)); /* 4.9.10.4 */
|
||
|
||
extern double
|
||
atof PARAMS ((const char *nptr)); /* 4.10.1.1 */
|
||
|
||
#ifndef MALLOC_INCOMPATIBLE
|
||
|
||
extern PTR
|
||
malloc PARAMS ((size_t size)); /* 4.10.3.3 */
|
||
|
||
extern PTR
|
||
realloc PARAMS ((void *ptr, size_t size)); /* 4.10.3.4 */
|
||
|
||
extern void
|
||
free PARAMS ((void *)); /* 4.10.3.2 */
|
||
|
||
#endif /* MALLOC_INCOMPATIBLE */
|
||
|
||
extern void
|
||
qsort PARAMS ((void *base, size_t nmemb, /* 4.10.5.2 */
|
||
size_t size,
|
||
int (*comp)(const void *, const void *)));
|
||
|
||
extern char *
|
||
strchr PARAMS ((const char *, int)); /* 4.11.5.2 */
|
||
|
||
extern char *
|
||
strrchr PARAMS ((const char *, int)); /* 4.11.5.5 */
|
||
|
||
extern char *
|
||
strstr PARAMS ((const char *, const char *)); /* 4.11.5.7 */
|
||
|
||
extern char *
|
||
strtok PARAMS ((char *, const char *)); /* 4.11.5.8 */
|
||
|
||
extern char *
|
||
strerror PARAMS ((int)); /* 4.11.6.2 */
|
||
|
||
/* Various possibilities for alloca. */
|
||
#ifndef alloca
|
||
# ifdef __GNUC__
|
||
# define alloca __builtin_alloca
|
||
# else
|
||
# ifdef sparc
|
||
# include <alloca.h>
|
||
extern char *alloca (); /* SPARC alloca.h doesn't declare damn thing */
|
||
# endif
|
||
# ifndef alloca /* May be macro, with args, in <alloca.h> */
|
||
extern char *alloca ();
|
||
# endif
|
||
# endif
|
||
#endif
|
||
|
||
/* TARGET_BYTE_ORDER and HOST_BYTE_ORDER must be defined to one of these. */
|
||
|
||
#if !defined (BIG_ENDIAN)
|
||
#define BIG_ENDIAN 4321
|
||
#endif
|
||
|
||
#if !defined (LITTLE_ENDIAN)
|
||
#define LITTLE_ENDIAN 1234
|
||
#endif
|
||
|
||
/* Target-system-dependent parameters for GDB.
|
||
|
||
The standard thing is to include defs.h. However, files that are
|
||
specific to a particular target can define TM_FILE_OVERRIDE before
|
||
including defs.h, then can include any particular tm-file they desire. */
|
||
|
||
/* Target machine definition. This will be a symlink to one of the
|
||
tm-*.h files, built by the `configure' script. */
|
||
|
||
#ifndef TM_FILE_OVERRIDE
|
||
#include "tm.h"
|
||
#endif
|
||
|
||
/* The bit byte-order has to do just with numbering of bits in
|
||
debugging symbols and such. Conceptually, it's quite separate
|
||
from byte/word byte order. */
|
||
|
||
#if !defined (BITS_BIG_ENDIAN)
|
||
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
||
#define BITS_BIG_ENDIAN 1
|
||
#endif /* Big endian. */
|
||
|
||
#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
|
||
#define BITS_BIG_ENDIAN 0
|
||
#endif /* Little endian. */
|
||
#endif /* BITS_BIG_ENDIAN not defined. */
|
||
|
||
/* Swap LEN bytes at BUFFER between target and host byte-order. */
|
||
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
|
||
#define SWAP_TARGET_AND_HOST(buffer,len)
|
||
#else /* Target and host byte order differ. */
|
||
#define SWAP_TARGET_AND_HOST(buffer,len) \
|
||
{ \
|
||
char tmp; \
|
||
char *p = (char *)(buffer); \
|
||
char *q = ((char *)(buffer)) + len - 1; \
|
||
for (; p < q; p++, q--) \
|
||
{ \
|
||
tmp = *q; \
|
||
*q = *p; \
|
||
*p = tmp; \
|
||
} \
|
||
}
|
||
#endif /* Target and host byte order differ. */
|
||
|
||
/* On some machines there are bits in addresses which are not really
|
||
part of the address, but are used by the kernel, the hardware, etc.
|
||
for special purposes. ADDR_BITS_REMOVE takes out any such bits
|
||
so we get a "real" address such as one would find in a symbol
|
||
table. ADDR_BITS_SET sets those bits the way the system wants
|
||
them. */
|
||
#if !defined (ADDR_BITS_REMOVE)
|
||
#define ADDR_BITS_REMOVE(addr) (addr)
|
||
#define ADDR_BITS_SET(addr) (addr)
|
||
#endif /* No ADDR_BITS_REMOVE. */
|
||
|
||
/* From valops.c */
|
||
|
||
extern CORE_ADDR
|
||
push_bytes PARAMS ((CORE_ADDR, char *, int));
|
||
|
||
/* In some modules, we don't have a definition of REGISTER_TYPE yet, so we
|
||
must avoid prototyping this function for now. FIXME. Should be:
|
||
extern CORE_ADDR
|
||
push_word PARAMS ((CORE_ADDR, REGISTER_TYPE));
|
||
*/
|
||
extern CORE_ADDR
|
||
push_word ();
|
||
|
||
#endif /* !defined (DEFS_H) */
|