[deliverable/binutils-gdb.git] / gdb / utils.h

/* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
		      for now.  */
/* I/O, string, cleanup, and other random utilities for GDB.
   Copyright (C) 1986-2014 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 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   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, see <http://www.gnu.org/licenses/>.  */

#ifndef UTILS_H
#define UTILS_H

#include "cleanups.h"
#include "exceptions.h"
#include "print-utils.h"

extern void initialize_utils (void);

/* String utilities.  */

extern int sevenbit_strings;

extern char *savestring (const char *, size_t);

extern int strcmp_iw (const char *, const char *);

extern int strcmp_iw_ordered (const char *, const char *);

extern int streq (const char *, const char *);

extern int subset_compare (char *, char *);

ULONGEST strtoulst (const char *num, const char **trailer, int base);

int compare_positive_ints (const void *ap, const void *bp);
int compare_strings (const void *ap, const void *bp);

/* This is defined in *-hdep.c, e.g., posix-hdep.c.  */
extern char *safe_strerror (int);

/* A wrapper for bfd_errmsg to produce a more helpful error message
   in the case of bfd_error_file_ambiguously recognized.
   MATCHING, if non-NULL, is the corresponding argument to
   bfd_check_format_matches, and will be freed.  */

extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);

/* Reset the prompt_for_continue clock.  */
void reset_prompt_for_continue_wait_time (void);
/* Return the time spent in prompt_for_continue.  */
struct timeval get_prompt_for_continue_wait_time (void);
\f
/* Parsing utilites.  */

extern int parse_pid_to_attach (char *args);

extern int parse_escape (struct gdbarch *, const char **);

char **gdb_buildargv (const char *);
\f
/* Cleanup utilities.  */

extern struct cleanup *make_cleanup_freeargv (char **);

struct dyn_string;
extern struct cleanup *make_cleanup_dyn_string_delete (struct dyn_string *);

struct ui_file;
extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);

struct ui_out;
extern struct cleanup *
  make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);

struct section_addr_info;
extern struct cleanup *(make_cleanup_free_section_addr_info 
                        (struct section_addr_info *));

extern struct cleanup *make_cleanup_close (int fd);

extern struct cleanup *make_cleanup_fclose (FILE *file);

extern struct cleanup *make_cleanup_bfd_unref (bfd *abfd);

struct obstack;
extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);

extern struct cleanup *make_cleanup_restore_integer (int *variable);
extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);

struct target_ops;
extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);

extern struct cleanup *
  make_cleanup_restore_ui_file (struct ui_file **variable);

extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
extern struct cleanup *make_cleanup_value_free (struct value *);

struct so_list;
extern struct cleanup *make_cleanup_free_so (struct so_list *so);

extern struct cleanup *make_cleanup_restore_current_language (void);

extern struct cleanup *make_cleanup_htab_delete (htab_t htab);

extern void free_current_contents (void *);

extern void init_page_info (void);

extern struct cleanup *make_cleanup_restore_page_info (void);
extern struct cleanup *
  set_batch_flag_and_make_cleanup_restore_page_info (void);

extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
\f
/* Path utilities.  */

extern char *gdb_realpath (const char *);

extern char *gdb_realpath_keepfile (const char *);

extern char *gdb_abspath (const char *);

extern int gdb_filename_fnmatch (const char *pattern, const char *string,
				 int flags);

extern void substitute_path_component (char **stringp, const char *from,
				       const char *to);

char *ldirname (const char *filename);
\f
/* GDB output, ui_file utilities.  */

struct ui_file;

extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);

extern void begin_line (void);

extern void wrap_here (char *);

extern void reinitialize_more_filter (void);

extern int pagination_enabled;

/* Global ui_file streams.  These are all defined in main.c.  */
/* Normal results */
extern struct ui_file *gdb_stdout;
/* Input stream */
extern struct ui_file *gdb_stdin;
/* Serious error notifications */
extern struct ui_file *gdb_stderr;
/* Log/debug/trace messages that should bypass normal stdout/stderr
   filtering.  For moment, always call this stream using
   *_unfiltered.  In the very near future that restriction shall be
   removed - either call shall be unfiltered.  (cagney 1999-06-13).  */
extern struct ui_file *gdb_stdlog;
/* Target output that should bypass normal stdout/stderr filtering.
   For moment, always call this stream using *_unfiltered.  In the
   very near future that restriction shall be removed - either call
   shall be unfiltered.  (cagney 1999-07-02).  */
extern struct ui_file *gdb_stdtarg;
extern struct ui_file *gdb_stdtargerr;
extern struct ui_file *gdb_stdtargin;

/* More generic printf like operations.  Filtered versions may return
   non-locally on error.  */

extern void fputs_filtered (const char *, struct ui_file *);

extern void fputs_unfiltered (const char *, struct ui_file *);

extern int fputc_filtered (int c, struct ui_file *);

extern int fputc_unfiltered (int c, struct ui_file *);

extern int putchar_filtered (int c);

extern int putchar_unfiltered (int c);

extern void puts_filtered (const char *);

extern void puts_unfiltered (const char *);

extern void puts_filtered_tabular (char *string, int width, int right);

extern void puts_debug (char *prefix, char *string, char *suffix);

extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);

extern void vfprintf_filtered (struct ui_file *, const char *, va_list)
  ATTRIBUTE_PRINTF (2, 0);

extern void fprintf_filtered (struct ui_file *, const char *, ...)
  ATTRIBUTE_PRINTF (2, 3);

extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
  ATTRIBUTE_PRINTF (3, 4);

extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);

extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);

extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);

extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
  ATTRIBUTE_PRINTF (2, 0);

extern void fprintf_unfiltered (struct ui_file *, const char *, ...)
  ATTRIBUTE_PRINTF (2, 3);

extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);

extern void print_spaces (int, struct ui_file *);

extern void print_spaces_filtered (int, struct ui_file *);

extern char *n_spaces (int);

extern void fputstr_filtered (const char *str, int quotr,
			      struct ui_file * stream);

extern void fputstr_unfiltered (const char *str, int quotr,
				struct ui_file * stream);

extern void fputstrn_filtered (const char *str, int n, int quotr,
			       struct ui_file * stream);

extern void fputstrn_unfiltered (const char *str, int n, int quotr,
				 struct ui_file * stream);

/* Display the host ADDR on STREAM formatted as ``0x%x''.  */
extern void gdb_print_host_address (const void *addr, struct ui_file *stream);

/* Convert CORE_ADDR to string in platform-specific manner.
   This is usually formatted similar to 0x%lx.  */
extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);

/* Return a string representation in hexadecimal notation of ADDRESS,
   which is suitable for printing.  */

extern const char *print_core_address (struct gdbarch *gdbarch,
				       CORE_ADDR address);

/* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex.  */
extern hashval_t core_addr_hash (const void *ap);
extern int core_addr_eq (const void *ap, const void *bp);

extern CORE_ADDR string_to_core_addr (const char *my_string);

extern void fprintf_symbol_filtered (struct ui_file *, const char *,
				     enum language, int);

extern void throw_perror_with_name (enum errors errcode, const char *string)
  ATTRIBUTE_NORETURN;
extern void perror_with_name (const char *) ATTRIBUTE_NORETURN;

extern void perror_warning_with_name (const char *string);

extern void print_sys_errmsg (const char *, int);
\f
/* Warnings and error messages.  */

extern void (*deprecated_error_begin_hook) (void);

/* Message to be printed before the warning message, when a warning occurs.  */

extern char *warning_pre_print;

extern void verror (const char *fmt, va_list ap)
     ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);

extern void error (const char *fmt, ...)
     ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);

extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;

extern void vfatal (const char *fmt, va_list ap)
     ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);

extern void fatal (const char *fmt, ...)
     ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);

extern void internal_verror (const char *file, int line, const char *,
			     va_list ap)
     ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);

extern void internal_vwarning (const char *file, int line,
			       const char *, va_list ap)
     ATTRIBUTE_PRINTF (3, 0);

extern void internal_warning (const char *file, int line,
			      const char *, ...) ATTRIBUTE_PRINTF (3, 4);

extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2);

extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0);
\f
/* Misc. utilities.  */

/* Allocation and deallocation functions for the libiberty hash table
   which use obstacks.  */
void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
void dummy_obstack_deallocate (void *object, void *data);

#ifdef HAVE_WAITPID
extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
#endif

extern int producer_is_gcc_ge_4 (const char *producer);

extern int myread (int, char *, int);

/* Ensure that V is aligned to an N byte boundary (B's assumed to be a
   power of 2).  Round up/down when necessary.  Examples of correct
   use include:

   addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
   write_memory (addr, value, len);
   addr += len;

   and:

   sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
   write_memory (sp, value, len);

   Note that uses such as:

   write_memory (addr, value, len);
   addr += align_up (len, 8);

   and:

   sp -= align_up (len, 8);
   write_memory (sp, value, len);

   are typically not correct as they don't ensure that the address (SP
   or ADDR) is correctly aligned (relying on previous alignment to
   keep things right).  This is also why the methods are called
   "align_..." instead of "round_..." as the latter reads better with
   this incorrect coding style.  */

extern ULONGEST align_up (ULONGEST v, int n);
extern ULONGEST align_down (ULONGEST v, int n);

/* Sign extend VALUE.  BIT is the (1-based) index of the bit in VALUE
   to sign-extend.  */

extern LONGEST gdb_sign_extend (LONGEST value, int bit);

#endif /* UTILS_H */
Commit	Line	Data
48faced0 DE	1	/* INDENT-OFF / / ATTRIBUTE_PRINTF confuses indent, avoid running it
	2	for now. */
	3	/* I/O, string, cleanup, and other random utilities for GDB.
ecd75fc8	4	Copyright (C) 1986-2014 Free Software Foundation, Inc.
48faced0 DE	5
	6	This file is part of GDB.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 3 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	20
	21	#ifndef UTILS_H
	22	#define UTILS_H
	23
	24	#include "cleanups.h"
af880d85	25	#include "exceptions.h"
01fd3ea5	26	#include "print-utils.h"
48faced0 DE	27
	28	extern void initialize_utils (void);
	29
	30	/* String utilities. */
	31
	32	extern int sevenbit_strings;
	33
	34	extern char savestring (const char , size_t);
	35
	36	extern int strcmp_iw (const char , const char );
	37
	38	extern int strcmp_iw_ordered (const char , const char );
	39
	40	extern int streq (const char , const char );
	41
	42	extern int subset_compare (char , char );
	43
	44	ULONGEST strtoulst (const char num, const char *trailer, int base);
	45
	46	int compare_positive_ints (const void ap, const void bp);
	47	int compare_strings (const void ap, const void bp);
	48
	49	/* This is defined in -hdep.c, e.g., posix-hdep.c. /
	50	extern char *safe_strerror (int);
	51
	52	/* A wrapper for bfd_errmsg to produce a more helpful error message
	53	in the case of bfd_error_file_ambiguously recognized.
	54	MATCHING, if non-NULL, is the corresponding argument to
	55	bfd_check_format_matches, and will be freed. */
	56
	57	extern const char gdb_bfd_errmsg (bfd_error_type error_tag, char *matching);
bd712aed DE	58
	59	/* Reset the prompt_for_continue clock. */
	60	void reset_prompt_for_continue_wait_time (void);
	61	/* Return the time spent in prompt_for_continue. */
	62	struct timeval get_prompt_for_continue_wait_time (void);
48faced0 DE	63	\f
	64	/* Parsing utilites. */
	65
	66	extern int parse_pid_to_attach (char *args);
	67
d7561cbb	68	extern int parse_escape (struct gdbarch , const char *);
48faced0 DE	69
	70	char *gdb_buildargv (const char );
	71	\f
	72	/* Cleanup utilities. */
	73
	74	extern struct cleanup make_cleanup_freeargv (char *);
	75
	76	struct dyn_string;
	77	extern struct cleanup make_cleanup_dyn_string_delete (struct dyn_string );
	78
	79	struct ui_file;
	80	extern struct cleanup make_cleanup_ui_file_delete (struct ui_file );
	81
	82	struct ui_out;
	83	extern struct cleanup *
	84	make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
	85
	86	struct section_addr_info;
	87	extern struct cleanup *(make_cleanup_free_section_addr_info
	88	(struct section_addr_info *));
	89
	90	extern struct cleanup *make_cleanup_close (int fd);
	91
	92	extern struct cleanup make_cleanup_fclose (FILE file);
	93
	94	extern struct cleanup make_cleanup_bfd_unref (bfd abfd);
	95
	96	struct obstack;
	97	extern struct cleanup make_cleanup_obstack_free (struct obstack obstack);
	98
	99	extern struct cleanup make_cleanup_restore_integer (int variable);
	100	extern struct cleanup make_cleanup_restore_uinteger (unsigned int variable);
	101
	102	struct target_ops;
	103	extern struct cleanup make_cleanup_unpush_target (struct target_ops ops);
	104
	105	extern struct cleanup *
	106	make_cleanup_restore_ui_file (struct ui_file **variable);
	107
	108	extern struct cleanup make_cleanup_value_free_to_mark (struct value );
	109	extern struct cleanup make_cleanup_value_free (struct value );
	110
	111	struct so_list;
	112	extern struct cleanup make_cleanup_free_so (struct so_list so);
	113
5b12a61c JK	114	extern struct cleanup *make_cleanup_restore_current_language (void);
5b12a61c JK	115
48faced0 DE	116	extern struct cleanup *make_cleanup_htab_delete (htab_t htab);
	117
	118	extern void free_current_contents (void *);
	119
48faced0 DE	120	extern void init_page_info (void);
	121
	122	extern struct cleanup *make_cleanup_restore_page_info (void);
	123	extern struct cleanup *
	124	set_batch_flag_and_make_cleanup_restore_page_info (void);
	125
	126	extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
	127	\f
	128	/* Path utilities. */
	129
	130	extern char gdb_realpath (const char );
	131
4856b6bc JK	132	extern char gdb_realpath_keepfile (const char );
4856b6bc JK	133
04affae3 JK	134	extern char gdb_abspath (const char );
04affae3 JK	135
48faced0 DE	136	extern int gdb_filename_fnmatch (const char pattern, const char string,
	137	int flags);
	138
	139	extern void substitute_path_component (char *stringp, const char from,
	140	const char *to);
	141
	142	char ldirname (const char filename);
	143	\f
	144	/* GDB output, ui_file utilities. */
	145
	146	struct ui_file;
	147
48faced0 DE	148	extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	149	extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	150	extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	151
	152	extern void begin_line (void);
	153
	154	extern void wrap_here (char *);
	155
	156	extern void reinitialize_more_filter (void);
	157
74da6f00 PA	158	extern int pagination_enabled;
74da6f00 PA	159
48faced0 DE	160	/* Global ui_file streams. These are all defined in main.c. */
	161	/* Normal results */
	162	extern struct ui_file *gdb_stdout;
	163	/* Input stream */
	164	extern struct ui_file *gdb_stdin;
	165	/* Serious error notifications */
	166	extern struct ui_file *gdb_stderr;
	167	/* Log/debug/trace messages that should bypass normal stdout/stderr
	168	filtering. For moment, always call this stream using
	169	*_unfiltered. In the very near future that restriction shall be
	170	removed - either call shall be unfiltered. (cagney 1999-06-13). */
	171	extern struct ui_file *gdb_stdlog;
	172	/* Target output that should bypass normal stdout/stderr filtering.
	173	For moment, always call this stream using *_unfiltered. In the
	174	very near future that restriction shall be removed - either call
	175	shall be unfiltered. (cagney 1999-07-02). */
	176	extern struct ui_file *gdb_stdtarg;
	177	extern struct ui_file *gdb_stdtargerr;
	178	extern struct ui_file *gdb_stdtargin;
	179
	180	/* More generic printf like operations. Filtered versions may return
	181	non-locally on error. */
	182
	183	extern void fputs_filtered (const char , struct ui_file );
	184
	185	extern void fputs_unfiltered (const char , struct ui_file );
	186
	187	extern int fputc_filtered (int c, struct ui_file *);
	188
	189	extern int fputc_unfiltered (int c, struct ui_file *);
	190
	191	extern int putchar_filtered (int c);
	192
	193	extern int putchar_unfiltered (int c);
	194
	195	extern void puts_filtered (const char *);
	196
	197	extern void puts_unfiltered (const char *);
	198
	199	extern void puts_filtered_tabular (char *string, int width, int right);
	200
	201	extern void puts_debug (char prefix, char string, char *suffix);
	202
	203	extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
	204
	205	extern void vfprintf_filtered (struct ui_file , const char , va_list)
	206	ATTRIBUTE_PRINTF (2, 0);
	207
	208	extern void fprintf_filtered (struct ui_file , const char , ...)
	209	ATTRIBUTE_PRINTF (2, 3);
	210
	211	extern void fprintfi_filtered (int, struct ui_file , const char , ...)
	212	ATTRIBUTE_PRINTF (3, 4);
	213
	214	extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	215
	216	extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
	217
	218	extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
	219
	220	extern void vfprintf_unfiltered (struct ui_file , const char , va_list)
	221	ATTRIBUTE_PRINTF (2, 0);
	222
	223	extern void fprintf_unfiltered (struct ui_file , const char , ...)
224	ATTRIBUTE_PRINTF (2, 3);
225
226	extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
227
228	extern void print_spaces (int, struct ui_file *);
229
230	extern void print_spaces_filtered (int, struct ui_file *);
231
232	extern char *n_spaces (int);
233
234	extern void fputstr_filtered (const char *str, int quotr,
235	struct ui_file * stream);
236
237	extern void fputstr_unfiltered (const char *str, int quotr,
238	struct ui_file * stream);
239
240	extern void fputstrn_filtered (const char *str, int n, int quotr,
241	struct ui_file * stream);
242
243	extern void fputstrn_unfiltered (const char *str, int n, int quotr,
244	struct ui_file * stream);
245
246	/* Display the host ADDR on STREAM formatted as ``0x%x''. */
247	extern void gdb_print_host_address (const void addr, struct ui_file stream);
248
48faced0 DE	249	/* Convert CORE_ADDR to string in platform-specific manner.
	250	This is usually formatted similar to 0x%lx. */
	251	extern const char paddress (struct gdbarch gdbarch, CORE_ADDR addr);
	252
	253	/* Return a string representation in hexadecimal notation of ADDRESS,
	254	which is suitable for printing. */
	255
	256	extern const char print_core_address (struct gdbarch gdbarch,
	257	CORE_ADDR address);
	258
	259	/* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
	260	extern hashval_t core_addr_hash (const void *ap);
	261	extern int core_addr_eq (const void ap, const void bp);
	262
48faced0 DE	263	extern CORE_ADDR string_to_core_addr (const char *my_string);
48faced0 DE	264
48faced0 DE	265	extern void fprintf_symbol_filtered (struct ui_file , const char ,
	266	enum language, int);
	267
598d3636 JK	268	extern void throw_perror_with_name (enum errors errcode, const char *string)
598d3636 JK	269	ATTRIBUTE_NORETURN;
48faced0 DE	270	extern void perror_with_name (const char *) ATTRIBUTE_NORETURN;
48faced0 DE	271
7c647d61 JB	272	extern void perror_warning_with_name (const char *string);
7c647d61 JB	273
48faced0 DE	274	extern void print_sys_errmsg (const char *, int);
	275	\f
	276	/* Warnings and error messages. */
	277
	278	extern void (*deprecated_error_begin_hook) (void);
	279
48faced0 DE	280	/* Message to be printed before the warning message, when a warning occurs. */
	281
	282	extern char *warning_pre_print;
	283
	284	extern void verror (const char *fmt, va_list ap)
	285	ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
	286
	287	extern void error (const char *fmt, ...)
	288	ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
	289
	290	extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
	291
	292	extern void vfatal (const char *fmt, va_list ap)
	293	ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
	294
	295	extern void fatal (const char *fmt, ...)
	296	ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
	297
	298	extern void internal_verror (const char file, int line, const char ,
	299	va_list ap)
	300	ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
	301
	302	extern void internal_vwarning (const char *file, int line,
	303	const char *, va_list ap)
	304	ATTRIBUTE_PRINTF (3, 0);
	305
	306	extern void internal_warning (const char *file, int line,
	307	const char *, ...) ATTRIBUTE_PRINTF (3, 4);
	308
	309	extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	310
	311	extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0);
	312	\f
	313	/* Misc. utilities. */
	314
	315	/* Allocation and deallocation functions for the libiberty hash table
	316	which use obstacks. */
	317	void hashtab_obstack_allocate (void data, size_t size, size_t count);
	318	void dummy_obstack_deallocate (void object, void data);
	319
	320	#ifdef HAVE_WAITPID
	321	extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
	322	#endif
	323
	324	extern int producer_is_gcc_ge_4 (const char *producer);
	325
48faced0 DE	326	extern int myread (int, char *, int);
	327
	328	/* Ensure that V is aligned to an N byte boundary (B's assumed to be a
	329	power of 2). Round up/down when necessary. Examples of correct
	330	use include:
	331
	332	addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
	333	write_memory (addr, value, len);
	334	addr += len;
	335
	336	and:
	337
	338	sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
	339	write_memory (sp, value, len);
	340
	341	Note that uses such as:
	342
	343	write_memory (addr, value, len);
	344	addr += align_up (len, 8);
	345
	346	and:
	347
	348	sp -= align_up (len, 8);
	349	write_memory (sp, value, len);
	350
	351	are typically not correct as they don't ensure that the address (SP
	352	or ADDR) is correctly aligned (relying on previous alignment to
	353	keep things right). This is also why the methods are called
	354	"align_..." instead of "round_..." as the latter reads better with
	355	this incorrect coding style. */
	356
	357	extern ULONGEST align_up (ULONGEST v, int n);
	358	extern ULONGEST align_down (ULONGEST v, int n);
	359
5bd1ef56 TT	360	/* Sign extend VALUE. BIT is the (1-based) index of the bit in VALUE
	361	to sign-extend. */
	362
	363	extern LONGEST gdb_sign_extend (LONGEST value, int bit);
	364
48faced0	365	#endif /* UTILS_H */