[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) 1986-2017 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 "exceptions.h"
#include "common/scoped_restore.h"
#include <chrono>

extern void initialize_utils (void);

/* String utilities.  */

extern int sevenbit_strings;

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 *);

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

/* 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.  */
std::chrono::steady_clock::duration get_prompt_for_continue_wait_time ();
\f
/* Parsing utilites.  */

extern int parse_pid_to_attach (const 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 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 *));

/* For make_cleanup_close see common/filestuff.h.  */

extern struct cleanup *make_cleanup_fclose (FILE *file);

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_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);

/* A deleter for a hash table.  */
struct htab_deleter
{
  void operator() (htab *ptr) const
  {
    htab_delete (ptr);
  }
};

/* A unique_ptr wrapper for htab_t.  */
typedef std::unique_ptr<htab, htab_deleter> htab_up;

struct parser_state;
extern struct cleanup *make_cleanup_clear_parser_state
  (struct parser_state **p);

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);

extern int count_path_elements (const char *path);

extern const char *strip_leading_path_elements (const char *path, int n);
\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 (const char *);

extern void reinitialize_more_filter (void);

extern int pagination_enabled;

extern struct ui_file **current_ui_gdb_stdout_ptr (void);
extern struct ui_file **current_ui_gdb_stdin_ptr (void);
extern struct ui_file **current_ui_gdb_stderr_ptr (void);
extern struct ui_file **current_ui_gdb_stdlog_ptr (void);

/* The current top level's ui_file streams.  */

/* Normal results */
#define gdb_stdout (*current_ui_gdb_stdout_ptr ())
/* Input stream */
#define gdb_stdin (*current_ui_gdb_stdin_ptr ())
/* Serious error notifications */
#define gdb_stderr (*current_ui_gdb_stderr_ptr ())
/* 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).  */
#define gdb_stdlog (*current_ui_gdb_stdlog_ptr ())

/* Truly global ui_file streams.  These are all defined in main.c.  */

/* 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;

/* Set the screen dimensions to WIDTH and HEIGHT.  */

extern void set_screen_width_and_height (int width, int height);

/* 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);

/* Return nonzero if filtered printing is initialized.  */
extern int filtered_printing_initialized (void);

/* Display the host ADDR on STREAM formatted as ``0x%x''.  */
extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream);

/* Wrapper that avoids adding a pointless cast to all callers.  */
#define gdb_print_host_address(ADDR, STREAM) \
  gdb_print_host_address_1 ((const void *) ADDR, 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_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 error_stream (struct ui_file *) ATTRIBUTE_NORETURN;

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

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

\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 producer_is_gcc (const char *producer, int *major, int *minor);

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);

/* Resource limits used by getrlimit and setrlimit.  */

enum resource_limit_kind
  {
    LIMIT_CUR,
    LIMIT_MAX
  };

/* Check whether GDB will be able to dump core using the dump_core
   function.  Returns zero if GDB cannot or should not dump core.
   If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
   If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected.  */

extern int can_dump_core (enum resource_limit_kind limit_kind);

/* Print a warning that we cannot dump core.  */

extern void warn_cant_dump_core (const char *reason);

/* Dump core trying to increase the core soft limit to hard limit
   first.  */

extern void dump_core (void);

/* Return the hex string form of LENGTH bytes of DATA.
   Space for the result is malloc'd, caller must free.  */

extern char *make_hex_string (const gdb_byte *data, size_t length);

#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.
61baf725	4	Copyright (C) 1986-2017 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
af880d85	24	#include "exceptions.h"
b7b633e9	25	#include "common/scoped_restore.h"
dcb07cfa	26	#include <chrono>
48faced0 DE	27
	28	extern void initialize_utils (void);
	29
	30	/* String utilities. */
	31
	32	extern int sevenbit_strings;
	33
48faced0 DE	34	extern int strcmp_iw (const char , const char );
	35
	36	extern int strcmp_iw_ordered (const char , const char );
	37
	38	extern int streq (const char , const char );
	39
	40	extern int subset_compare (char , char );
	41
48faced0 DE	42	int compare_positive_ints (const void ap, const void bp);
	43	int compare_strings (const void ap, const void bp);
	44
48faced0 DE	45	/* A wrapper for bfd_errmsg to produce a more helpful error message
	46	in the case of bfd_error_file_ambiguously recognized.
	47	MATCHING, if non-NULL, is the corresponding argument to
	48	bfd_check_format_matches, and will be freed. */
	49
	50	extern const char gdb_bfd_errmsg (bfd_error_type error_tag, char *matching);
bd712aed DE	51
	52	/* Reset the prompt_for_continue clock. */
	53	void reset_prompt_for_continue_wait_time (void);
	54	/* Return the time spent in prompt_for_continue. */
dcb07cfa	55	std::chrono::steady_clock::duration get_prompt_for_continue_wait_time ();
48faced0 DE	56	\f
	57	/* Parsing utilites. */
	58
c0939df1	59	extern int parse_pid_to_attach (const char *args);
48faced0	60
d7561cbb	61	extern int parse_escape (struct gdbarch , const char *);
48faced0 DE	62
	63	char *gdb_buildargv (const char );
	64	\f
	65	/* Cleanup utilities. */
	66
	67	extern struct cleanup make_cleanup_freeargv (char *);
	68
48faced0 DE	69	struct ui_file;
	70	extern struct cleanup make_cleanup_ui_file_delete (struct ui_file );
	71
	72	struct ui_out;
	73	extern struct cleanup *
	74	make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
	75
	76	struct section_addr_info;
	77	extern struct cleanup *(make_cleanup_free_section_addr_info
	78	(struct section_addr_info *));
	79
ca095836	80	/* For make_cleanup_close see common/filestuff.h. */
48faced0 DE	81
	82	extern struct cleanup make_cleanup_fclose (FILE file);
	83
48faced0 DE	84	struct obstack;
	85	extern struct cleanup make_cleanup_obstack_free (struct obstack obstack);
	86
	87	extern struct cleanup make_cleanup_restore_integer (int variable);
	88	extern struct cleanup make_cleanup_restore_uinteger (unsigned int variable);
	89
	90	struct target_ops;
	91	extern struct cleanup make_cleanup_unpush_target (struct target_ops ops);
	92
48faced0 DE	93	extern struct cleanup make_cleanup_value_free_to_mark (struct value );
	94	extern struct cleanup make_cleanup_value_free (struct value );
	95
	96	struct so_list;
	97	extern struct cleanup make_cleanup_free_so (struct so_list so);
	98
5b12a61c JK	99	extern struct cleanup *make_cleanup_restore_current_language (void);
5b12a61c JK	100
6349f452 TT	101	/* A deleter for a hash table. */
	102	struct htab_deleter
	103	{
	104	void operator() (htab *ptr) const
	105	{
	106	htab_delete (ptr);
	107	}
	108	};
	109
	110	/* A unique_ptr wrapper for htab_t. */
	111	typedef std::unique_ptr<htab, htab_deleter> htab_up;
	112
410a0ff2 SDJ	113	struct parser_state;
	114	extern struct cleanup *make_cleanup_clear_parser_state
	115	(struct parser_state **p);
	116
48faced0 DE	117	extern void free_current_contents (void *);
48faced0 DE	118
48faced0 DE	119	extern void init_page_info (void);
	120
	121	extern struct cleanup *make_cleanup_restore_page_info (void);
	122	extern struct cleanup *
	123	set_batch_flag_and_make_cleanup_restore_page_info (void);
	124
	125	extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
	126	\f
	127	/* Path utilities. */
	128
	129	extern char gdb_realpath (const char );
	130
4856b6bc JK	131	extern char gdb_realpath_keepfile (const char );
4856b6bc JK	132
04affae3 JK	133	extern char gdb_abspath (const char );
04affae3 JK	134
48faced0 DE	135	extern int gdb_filename_fnmatch (const char pattern, const char string,
	136	int flags);
	137
	138	extern void substitute_path_component (char *stringp, const char from,
	139	const char *to);
	140
	141	char ldirname (const char filename);
cce0e923 DE	142
	143	extern int count_path_elements (const char *path);
	144
	145	extern const char strip_leading_path_elements (const char path, int n);
48faced0 DE	146	\f
	147	/* GDB output, ui_file utilities. */
	148
	149	struct ui_file;
	150
48faced0 DE	151	extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	152	extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	153	extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	154
	155	extern void begin_line (void);
	156
d2c0eef4	157	extern void wrap_here (const char *);
48faced0 DE	158
	159	extern void reinitialize_more_filter (void);
	160
74da6f00 PA	161	extern int pagination_enabled;
74da6f00 PA	162
79aa2fe8 PA	163	extern struct ui_file **current_ui_gdb_stdout_ptr (void);
	164	extern struct ui_file **current_ui_gdb_stdin_ptr (void);
	165	extern struct ui_file **current_ui_gdb_stderr_ptr (void);
	166	extern struct ui_file **current_ui_gdb_stdlog_ptr (void);
	167
	168	/* The current top level's ui_file streams. */
	169
48faced0	170	/* Normal results */
79aa2fe8	171	#define gdb_stdout (*current_ui_gdb_stdout_ptr ())
48faced0	172	/* Input stream */
79aa2fe8	173	#define gdb_stdin (*current_ui_gdb_stdin_ptr ())
48faced0	174	/* Serious error notifications */
79aa2fe8	175	#define gdb_stderr (*current_ui_gdb_stderr_ptr ())
48faced0 DE	176	/* Log/debug/trace messages that should bypass normal stdout/stderr
	177	filtering. For moment, always call this stream using
	178	*_unfiltered. In the very near future that restriction shall be
	179	removed - either call shall be unfiltered. (cagney 1999-06-13). */
79aa2fe8 PA	180	#define gdb_stdlog (*current_ui_gdb_stdlog_ptr ())
	181
	182	/* Truly global ui_file streams. These are all defined in main.c. */
	183
48faced0 DE	184	/* Target output that should bypass normal stdout/stderr filtering.
	185	For moment, always call this stream using *_unfiltered. In the
	186	very near future that restriction shall be removed - either call
	187	shall be unfiltered. (cagney 1999-07-02). */
	188	extern struct ui_file *gdb_stdtarg;
	189	extern struct ui_file *gdb_stdtargerr;
	190	extern struct ui_file *gdb_stdtargin;
	191
d6e5e7f7 PP	192	/* Set the screen dimensions to WIDTH and HEIGHT. */
	193
	194	extern void set_screen_width_and_height (int width, int height);
	195
48faced0 DE	196	/* More generic printf like operations. Filtered versions may return
	197	non-locally on error. */
	198
	199	extern void fputs_filtered (const char , struct ui_file );
	200
	201	extern void fputs_unfiltered (const char , struct ui_file );
	202
	203	extern int fputc_filtered (int c, struct ui_file *);
	204
	205	extern int fputc_unfiltered (int c, struct ui_file *);
	206
	207	extern int putchar_filtered (int c);
	208
	209	extern int putchar_unfiltered (int c);
	210
	211	extern void puts_filtered (const char *);
	212
	213	extern void puts_unfiltered (const char *);
	214
	215	extern void puts_filtered_tabular (char *string, int width, int right);
	216
	217	extern void puts_debug (char prefix, char string, char *suffix);
	218
	219	extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
	220
	221	extern void vfprintf_filtered (struct ui_file , const char , va_list)
	222	ATTRIBUTE_PRINTF (2, 0);
	223
	224	extern void fprintf_filtered (struct ui_file , const char , ...)
	225	ATTRIBUTE_PRINTF (2, 3);
	226
	227	extern void fprintfi_filtered (int, struct ui_file , const char , ...)
	228	ATTRIBUTE_PRINTF (3, 4);
	229
	230	extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	231
	232	extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
	233
	234	extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
	235
	236	extern void vfprintf_unfiltered (struct ui_file , const char , va_list)
	237	ATTRIBUTE_PRINTF (2, 0);
	238
	239	extern void fprintf_unfiltered (struct ui_file , const char , ...)
	240	ATTRIBUTE_PRINTF (2, 3);
	241
	242	extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
	243
	244	extern void print_spaces (int, struct ui_file *);
	245
	246	extern void print_spaces_filtered (int, struct ui_file *);
	247
	248	extern char *n_spaces (int);
	249
	250	extern void fputstr_filtered (const char *str, int quotr,
	251	struct ui_file * stream);
	252
	253	extern void fputstr_unfiltered (const char *str, int quotr,
	254	struct ui_file * stream);
	255
	256	extern void fputstrn_filtered (const char *str, int n, int quotr,
	257	struct ui_file * stream);
	258
	259	extern void fputstrn_unfiltered (const char *str, int n, int quotr,
260	struct ui_file * stream);
261
2437fd32 GB	262	/* Return nonzero if filtered printing is initialized. */
	263	extern int filtered_printing_initialized (void);
	264
48faced0	265	/* Display the host ADDR on STREAM formatted as ``0x%x''. */
b80c3053 PA	266	extern void gdb_print_host_address_1 (const void addr, struct ui_file stream);
	267
	268	/* Wrapper that avoids adding a pointless cast to all callers. */
	269	#define gdb_print_host_address(ADDR, STREAM) \
	270	gdb_print_host_address_1 ((const void *) ADDR, STREAM)
48faced0	271
48faced0 DE	272	/* Convert CORE_ADDR to string in platform-specific manner.
	273	This is usually formatted similar to 0x%lx. */
	274	extern const char paddress (struct gdbarch gdbarch, CORE_ADDR addr);
	275
	276	/* Return a string representation in hexadecimal notation of ADDRESS,
	277	which is suitable for printing. */
	278
	279	extern const char print_core_address (struct gdbarch gdbarch,
	280	CORE_ADDR address);
	281
	282	/* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
	283	extern hashval_t core_addr_hash (const void *ap);
	284	extern int core_addr_eq (const void ap, const void bp);
	285
48faced0 DE	286	extern CORE_ADDR string_to_core_addr (const char *my_string);
48faced0 DE	287
48faced0 DE	288	extern void fprintf_symbol_filtered (struct ui_file , const char ,
	289	enum language, int);
	290
598d3636 JK	291	extern void throw_perror_with_name (enum errors errcode, const char *string)
598d3636 JK	292	ATTRIBUTE_NORETURN;
48faced0	293
7c647d61 JB	294	extern void perror_warning_with_name (const char *string);
7c647d61 JB	295
48faced0 DE	296	extern void print_sys_errmsg (const char *, int);
	297	\f
	298	/* Warnings and error messages. */
	299
	300	extern void (*deprecated_error_begin_hook) (void);
	301
48faced0 DE	302	/* Message to be printed before the warning message, when a warning occurs. */
	303
	304	extern char *warning_pre_print;
	305
48faced0 DE	306	extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
48faced0 DE	307
57fcfb1b GB	308	extern void demangler_vwarning (const char *file, int line,
	309	const char *, va_list ap)
	310	ATTRIBUTE_PRINTF (3, 0);
	311
	312	extern void demangler_warning (const char *file, int line,
	313	const char *, ...) ATTRIBUTE_PRINTF (3, 4);
	314
48faced0 DE	315	\f
	316	/* Misc. utilities. */
	317
	318	/* Allocation and deallocation functions for the libiberty hash table
	319	which use obstacks. */
	320	void hashtab_obstack_allocate (void data, size_t size, size_t count);
	321	void dummy_obstack_deallocate (void object, void data);
	322
	323	#ifdef HAVE_WAITPID
	324	extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
	325	#endif
	326
	327	extern int producer_is_gcc_ge_4 (const char *producer);
cc7039d3	328	extern int producer_is_gcc (const char producer, int major, int *minor);
48faced0	329
48faced0 DE	330	extern int myread (int, char *, int);
	331
	332	/* Ensure that V is aligned to an N byte boundary (B's assumed to be a
	333	power of 2). Round up/down when necessary. Examples of correct
	334	use include:
	335
	336	addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
	337	write_memory (addr, value, len);
	338	addr += len;
	339
	340	and:
	341
	342	sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
	343	write_memory (sp, value, len);
	344
	345	Note that uses such as:
	346
	347	write_memory (addr, value, len);
	348	addr += align_up (len, 8);
	349
	350	and:
	351
	352	sp -= align_up (len, 8);
	353	write_memory (sp, value, len);
	354
	355	are typically not correct as they don't ensure that the address (SP
	356	or ADDR) is correctly aligned (relying on previous alignment to
	357	keep things right). This is also why the methods are called
	358	"align_..." instead of "round_..." as the latter reads better with
	359	this incorrect coding style. */
	360
	361	extern ULONGEST align_up (ULONGEST v, int n);
	362	extern ULONGEST align_down (ULONGEST v, int n);
	363
eae7090b GB	364	/* Resource limits used by getrlimit and setrlimit. */
	365
	366	enum resource_limit_kind
	367	{
	368	LIMIT_CUR,
	369	LIMIT_MAX
	370	};
	371
	372	/* Check whether GDB will be able to dump core using the dump_core
	373	function. Returns zero if GDB cannot or should not dump core.
	374	If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
	375	If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
	376
	377	extern int can_dump_core (enum resource_limit_kind limit_kind);
	378
	379	/* Print a warning that we cannot dump core. */
	380
	381	extern void warn_cant_dump_core (const char *reason);
	382
	383	/* Dump core trying to increase the core soft limit to hard limit
	384	first. */
	385
	386	extern void dump_core (void);
	387
7c50a931 DE	388	/* Return the hex string form of LENGTH bytes of DATA.
	389	Space for the result is malloc'd, caller must free. */
	390
	391	extern char make_hex_string (const gdb_byte data, size_t length);
	392
48faced0	393	#endif /* UTILS_H */