1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
27 #include "config.h" /* Generated by configure. */
30 #include <errno.h> /* System call error return status. */
36 #include <sys/types.h> /* For size_t. */
43 /* First include ansidecl.h so we can use the various macro definitions
44 here and in all subsequent file inclusions. */
48 #include "gdb_locale.h"
50 /* For ``enum target_signal''. */
51 #include "gdb/signals.h"
53 /* Just in case they're not defined in stdio.h. */
62 #include <stdarg.h> /* For va_list. */
64 #include "libiberty.h"
66 /* For BFD64 and bfd_vma. */
70 /* The target is partially multi-arched. Both "tm.h" and the
71 multi-arch vector provide definitions. "tm.h" normally overrides
72 the multi-arch vector (but there are a few exceptions). */
74 #define GDB_MULTI_ARCH_PARTIAL 1
76 /* The target is partially multi-arched. Both the multi-arch vector
77 and "tm.h" provide definitions. "tm.h" cannot override a definition
78 provided by the multi-arch vector. It is detected as a compilation
81 This setting is only useful during a multi-arch conversion. */
83 #define GDB_MULTI_ARCH_TM 2
85 /* The target is pure multi-arch. The MULTI-ARCH vector provides all
86 definitions. "tm.h" is linked to an empty file. */
88 #define GDB_MULTI_ARCH_PURE 3
92 /* An address in the program being debugged. Host byte order. Rather
93 than duplicate all the logic in BFD which figures out what type
94 this is (long, long long, etc.) and whether it needs to be 64
95 bits (the host/target interactions are subtle), we just use
98 typedef bfd_vma CORE_ADDR;
100 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
106 #define LONGEST BFD_HOST_64_BIT
107 #define ULONGEST BFD_HOST_U_64_BIT
111 #ifdef CC_HAS_LONG_LONG
112 #define LONGEST long long
113 #define ULONGEST unsigned long long
115 #ifdef BFD_HOST_64_BIT
116 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
117 (e.g. i386-windows) so try it. */
118 #define LONGEST BFD_HOST_64_BIT
119 #define ULONGEST BFD_HOST_U_64_BIT
122 #define ULONGEST unsigned long
126 #endif /* No BFD64 */
128 #endif /* ! LONGEST */
131 #define min(a, b) ((a) < (b) ? (a) : (b))
134 #define max(a, b) ((a) > (b) ? (a) : (b))
137 /* Macros to do string compares.
139 NOTE: cagney/2000-03-14:
141 While old code can continue to refer to these macros, new code is
142 probably better off using strcmp() directly vis: ``strcmp() == 0''
143 and ``strcmp() != 0''.
145 This is because modern compilers can directly inline strcmp()
146 making the original justification for these macros - avoid function
147 call overhead by pre-testing the first characters
148 (``*X==*Y?...:0'') - redundant.
150 ``Even if [...] testing the first character does have a modest
151 performance improvement, I'd rather that whenever a performance
152 issue is found that we spend the effort on algorithmic
153 optimizations than micro-optimizing.'' J.T. */
155 /* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by
156 testing GDB on a stabs system have been replaced by equivalent
157 str[n]cmp calls. To avoid the possability of introducing bugs when
158 making untested changes, the remaining references were deprecated
159 rather than replaced. */
161 /* DISCLAIMER: cagney/2003-11-23: Simplified definition of these
162 macros so that they just map directly onto strcmp equivalent. I'm
163 not responsible for any breakage due to code that relied on the old
164 underlying implementation. */
166 #define DEPRECATED_STREQ(a,b) (strcmp ((a), (b)) == 0)
167 #define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0)
169 /* Check if a character is one of the commonly used C++ marker characters. */
170 extern int is_cplus_marker (int);
172 /* enable xdb commands if set */
173 extern int xdb_commands;
175 /* enable dbx commands if set */
176 extern int dbx_commands;
178 /* System root path, used to find libraries etc. */
179 extern char *gdb_sysroot;
181 extern int quit_flag;
182 extern int immediate_quit;
183 extern int sevenbit_strings;
185 extern void quit (void);
187 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
188 benefits of having a ``QUIT'' macro rather than a function are
189 marginal. If the overhead of a QUIT function call is proving
190 significant then its calling frequency should probably be reduced
191 [kingdon]. A profile analyzing the current situtation is
195 /* do twice to force compiler warning */
196 #define QUIT_FIXME "FIXME"
197 #define QUIT_FIXME "ignoring redefinition of QUIT"
200 if (quit_flag) quit (); \
201 if (interactive_hook) interactive_hook (); \
205 /* Languages represented in the symbol table and elsewhere.
206 This should probably be in language.h, but since enum's can't
207 be forward declared to satisfy opaque references before their
208 actual definition, needs to be here. */
212 language_unknown, /* Language not known */
213 language_auto, /* Placeholder for automatic setting */
215 language_cplus, /* C++ */
216 language_objc, /* Objective-C */
217 language_java, /* Java */
218 language_fortran, /* Fortran */
219 language_m2, /* Modula-2 */
220 language_asm, /* Assembly language */
221 language_scm, /* Scheme / Guile */
222 language_pascal, /* Pascal */
223 language_minimal /* All other languages, minimal support only */
230 unspecified_precision
233 /* A generic, not quite boolean, enumeration. */
241 /* Potential ways that a function can return a value of a given type. */
242 enum return_value_convention
244 /* Where the return value has been squeezed into one or more
246 RETURN_VALUE_REGISTER_CONVENTION,
247 /* Commonly known as the "struct return convention". The caller
248 passes an additional hidden first parameter to the caller. That
249 parameter contains the address at which the value being returned
250 should be stored. While typically, and historically, used for
251 large structs, this is convention is applied to values of many
253 RETURN_VALUE_STRUCT_CONVENTION
256 /* the cleanup list records things that have to be undone
257 if an error happens (descriptors to be closed, memory to be freed, etc.)
258 Each link in the chain records a function to call and an
261 Use make_cleanup to add an element to the cleanup chain.
262 Use do_cleanups to do all cleanup actions back to a given
263 point in the chain. Use discard_cleanups to remove cleanups
264 from the chain back to a given point, not doing them. */
268 struct cleanup *next;
269 void (*function) (void *);
274 /* The ability to declare that a function never returns is useful, but
275 not really required to compile GDB successfully, so the NORETURN and
276 ATTR_NORETURN macros normally expand into nothing. */
278 /* If compiling with older versions of GCC, a function may be declared
279 "volatile" to indicate that it does not return. */
282 #if defined(__GNUC__) \
283 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
284 #define NORETURN volatile
286 #define NORETURN /* nothing */
290 /* GCC 2.5 and later versions define a function attribute "noreturn",
291 which is the preferred way to declare that a function never returns.
292 However GCC 2.7 appears to be the first version in which this fully
293 works everywhere we use it. */
295 #ifndef ATTR_NORETURN
296 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
297 #define ATTR_NORETURN __attribute__ ((noreturn))
299 #define ATTR_NORETURN /* nothing */
304 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
305 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
307 #define ATTR_FORMAT(type, x, y) /* nothing */
311 /* Be conservative and use enum bitfields only with GCC.
312 This is copied from gcc 3.3.1, system.h. */
314 #if defined(__GNUC__) && (__GNUC__ >= 2)
315 #define ENUM_BITFIELD(TYPE) enum TYPE
317 #define ENUM_BITFIELD(TYPE) unsigned int
320 /* Needed for various prototypes */
326 /* From blockframe.c */
328 extern int inside_entry_func (struct frame_info *this_frame);
330 extern int deprecated_inside_entry_file (CORE_ADDR addr);
332 extern int inside_main_func (CORE_ADDR pc);
336 extern void initialize_utils (void);
338 extern void notice_quit (void);
340 extern int strcmp_iw (const char *, const char *);
342 extern int strcmp_iw_ordered (const char *, const char *);
344 extern int streq (const char *, const char *);
346 extern int subset_compare (char *, char *);
348 extern char *safe_strerror (int);
350 extern void init_malloc (void *);
352 extern void request_quit (int);
354 extern void do_cleanups (struct cleanup *);
355 extern void do_final_cleanups (struct cleanup *);
356 extern void do_run_cleanups (struct cleanup *);
357 extern void do_exec_cleanups (struct cleanup *);
358 extern void do_exec_error_cleanups (struct cleanup *);
360 extern void discard_cleanups (struct cleanup *);
361 extern void discard_final_cleanups (struct cleanup *);
362 extern void discard_exec_error_cleanups (struct cleanup *);
363 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
365 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
366 make_cleanup function declarations below. Do not use this typedef
367 as a cast when passing functions into the make_cleanup() code.
368 Instead either use a bounce function or add a wrapper function.
369 Calling a f(char*) function with f(void*) is non-portable. */
370 typedef void (make_cleanup_ftype) (void *);
372 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
374 extern struct cleanup *make_cleanup_freeargv (char **);
377 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
379 extern struct cleanup *make_cleanup_close (int fd);
381 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
383 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
385 extern struct cleanup *make_my_cleanup (struct cleanup **,
386 make_cleanup_ftype *, void *);
388 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
390 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
391 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
393 extern struct cleanup *save_cleanups (void);
394 extern struct cleanup *save_final_cleanups (void);
395 extern struct cleanup *save_my_cleanups (struct cleanup **);
397 extern void restore_cleanups (struct cleanup *);
398 extern void restore_final_cleanups (struct cleanup *);
399 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
401 extern void free_current_contents (void *);
403 extern void null_cleanup (void *);
405 extern int myread (int, char *, int);
407 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
408 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
409 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
411 extern void init_page_info (void);
413 extern char *gdb_realpath (const char *);
414 extern char *xfullpath (const char *);
416 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
417 unsigned char *buf, size_t len);
419 /* From demangle.c */
421 extern void set_demangling_style (char *);
426 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
427 extern use_struct_convention_fn generic_use_struct_convention;
430 /* Annotation stuff. */
432 extern int annotation_level; /* in stack.c */
434 extern void begin_line (void);
436 extern void wrap_here (char *);
438 extern void reinitialize_more_filter (void);
441 extern struct ui_file *gdb_stdout;
443 extern struct ui_file *gdb_stdin;
444 /* Serious error notifications */
445 extern struct ui_file *gdb_stderr;
446 /* Log/debug/trace messages that should bypass normal stdout/stderr
447 filtering. For moment, always call this stream using
448 *_unfiltered. In the very near future that restriction shall be
449 removed - either call shall be unfiltered. (cagney 1999-06-13). */
450 extern struct ui_file *gdb_stdlog;
451 /* Target output that should bypass normal stdout/stderr filtering.
452 For moment, always call this stream using *_unfiltered. In the
453 very near future that restriction shall be removed - either call
454 shall be unfiltered. (cagney 1999-07-02). */
455 extern struct ui_file *gdb_stdtarg;
456 extern struct ui_file *gdb_stdtargerr;
457 extern struct ui_file *gdb_stdtargin;
461 /* More generic printf like operations. Filtered versions may return
462 non-locally on error. */
464 extern void fputs_filtered (const char *, struct ui_file *);
466 extern void fputs_unfiltered (const char *, struct ui_file *);
468 extern int fputc_filtered (int c, struct ui_file *);
470 extern int fputc_unfiltered (int c, struct ui_file *);
472 extern int putchar_filtered (int c);
474 extern int putchar_unfiltered (int c);
476 extern void puts_filtered (const char *);
478 extern void puts_unfiltered (const char *);
480 extern void puts_filtered_tabular (char *string, int width, int right);
482 extern void puts_debug (char *prefix, char *string, char *suffix);
484 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
486 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
488 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
490 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
492 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
494 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
496 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
498 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
500 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
502 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
504 extern void print_spaces (int, struct ui_file *);
506 extern void print_spaces_filtered (int, struct ui_file *);
508 extern char *n_spaces (int);
510 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
512 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
514 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
516 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
517 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
519 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
520 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
522 extern int strlen_paddr (void);
523 extern char *paddr (CORE_ADDR addr);
524 extern char *paddr_nz (CORE_ADDR addr);
525 extern char *paddr_u (CORE_ADDR addr);
526 extern char *paddr_d (LONGEST addr);
528 extern char *phex (ULONGEST l, int sizeof_l);
529 extern char *phex_nz (ULONGEST l, int sizeof_l);
531 /* Like paddr() only print/scan raw CORE_ADDR. The output from
532 core_addr_to_string() can be passed direct to
533 string_to_core_addr(). */
534 extern const char *core_addr_to_string (const CORE_ADDR addr);
535 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
536 extern CORE_ADDR string_to_core_addr (const char *my_string);
538 extern void fprintf_symbol_filtered (struct ui_file *, char *,
541 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
543 extern void print_sys_errmsg (const char *, int);
545 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
546 "const char *" in unistd.h, so we can't declare the argument
549 extern char *re_comp (const char *);
553 extern void symbol_file_command (char *, int);
555 /* Remote targets may wish to use this as their load function. */
556 extern void generic_load (char *name, int from_tty);
558 /* Summarise a download */
559 extern void print_transfer_performance (struct ui_file *stream,
560 unsigned long data_count,
561 unsigned long write_count,
562 unsigned long time_count);
566 typedef void initialize_file_ftype (void);
568 extern char *skip_quoted (char *);
570 extern char *gdb_readline (char *);
572 extern char *gdb_readline_wrapper (char *);
574 extern char *command_line_input (char *, int, char *);
576 extern void print_prompt (void);
578 extern int input_from_terminal_p (void);
580 extern int info_verbose;
582 /* From printcmd.c */
584 extern void set_next_address (CORE_ADDR);
586 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
589 extern int build_address_symbolic (CORE_ADDR addr,
597 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
599 extern void print_address (CORE_ADDR, struct ui_file *);
603 extern int openp (const char *, int, const char *, int, int, char **);
605 extern int source_full_path_of (char *, char **);
607 extern void mod_path (char *, char **);
609 extern void add_path (char *, char **, int);
611 extern void directory_command (char *, int);
613 extern char *source_path;
615 extern void init_source_path (void);
617 extern void init_last_source_visited (void);
619 extern char *symtab_to_filename (struct symtab *);
623 extern void exec_set_section_offsets (bfd_signed_vma text_off,
624 bfd_signed_vma data_off,
625 bfd_signed_vma bss_off);
627 /* Take over the 'find_mapped_memory' vector from exec.c. */
628 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
634 /* Possible lvalue types. Like enum language, this should be in
635 value.h, but needs to be here for the same reason. */
641 /* In memory. Could be a saved register. */
645 /* In a gdb internal variable. */
647 /* Part of a gdb internal variable (structure field). */
648 lval_internalvar_component,
649 /* In a register series in a frame not the current one, which may have been
650 partially saved or saved in different places (otherwise would be
651 lval_register or lval_memory). */
652 lval_reg_frame_relative
655 /* Control types for commands */
657 enum misc_command_type
665 enum command_control_type
675 /* Structure for saved commands lines
676 (for breakpoints, defined commands, etc). */
680 struct command_line *next;
682 enum command_control_type control_type;
684 struct command_line **body_list;
687 extern struct command_line *read_command_lines (char *, int);
689 extern void free_command_lines (struct command_line **);
691 /* To continue the execution commands when running gdb asynchronously.
692 A continuation structure contains a pointer to a function to be called
693 to finish the command, once the target has stopped. Such mechanism is
694 used bt the finish and until commands, and in the remote protocol
695 when opening an extended-remote connection. */
697 struct continuation_arg
699 struct continuation_arg *next;
700 union continuation_data {
709 void (*continuation_hook) (struct continuation_arg *);
710 struct continuation_arg *arg_list;
711 struct continuation *next;
715 extern struct continuation *cmd_continuation;
716 /* Used only by the step_1 function. */
717 extern struct continuation *intermediate_continuation;
720 extern void add_continuation (void (*)(struct continuation_arg *),
721 struct continuation_arg *);
722 extern void do_all_continuations (void);
723 extern void discard_all_continuations (void);
725 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
726 struct continuation_arg *);
727 extern void do_all_intermediate_continuations (void);
728 extern void discard_all_intermediate_continuations (void);
730 /* String containing the current directory (what getwd would return). */
732 extern char *current_directory;
734 /* Default radixes for input and output. Only some values supported. */
735 extern unsigned input_radix;
736 extern unsigned output_radix;
738 /* Possibilities for prettyprint parameters to routines which print
739 things. Like enum language, this should be in value.h, but needs
740 to be here for the same reason. FIXME: If we can eliminate this
741 as an arg to LA_VAL_PRINT, then we can probably move it back to
746 Val_no_prettyprint = 0,
748 /* Use the default setting which the user has specified. */
752 /* The ptid struct is a collection of the various "ids" necessary
753 for identifying the inferior. This consists of the process id
754 (pid), thread id (tid), and other fields necessary for uniquely
755 identifying the inferior process/thread being debugged. When
756 manipulating ptids, the constructors, accessors, and predicate
757 declared in inferior.h should be used. These are as follows:
759 ptid_build - Make a new ptid from a pid, lwp, and tid.
760 pid_to_ptid - Make a new ptid from just a pid.
761 ptid_get_pid - Fetch the pid component of a ptid.
762 ptid_get_lwp - Fetch the lwp component of a ptid.
763 ptid_get_tid - Fetch the tid component of a ptid.
764 ptid_equal - Test to see if two ptids are equal.
766 Please do NOT access the struct ptid members directly (except, of
767 course, in the implementation of the above ptid manipulation
775 /* Lightweight process id */
782 typedef struct ptid ptid_t;
786 /* Optional host machine definition. Pure autoconf targets will not
787 need a "xm.h" file. This will be a symlink to one of the xm-*.h
788 files, built by the `configure' script. */
794 /* Optional native machine support. Non-native (and possibly pure
795 multi-arch) targets do not need a "nm.h" file. This will be a
796 symlink to one of the nm-*.h files, built by the `configure'
803 /* Optional target machine definition. Pure multi-arch configurations
804 do not need a "tm.h" file. This will be a symlink to one of the
805 tm-*.h files, built by the `configure' script. */
811 /* If the xm.h file did not define the mode string used to open the
812 files, assume that binary files are opened the same way as text
815 #include "fopen-same.h"
818 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
819 FIXME: Assumes 2's complement arithmetic */
821 #if !defined (UINT_MAX)
822 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
825 #if !defined (INT_MAX)
826 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
829 #if !defined (INT_MIN)
830 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
833 #if !defined (ULONG_MAX)
834 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
837 #if !defined (LONG_MAX)
838 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
841 #if !defined (ULONGEST_MAX)
842 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
845 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
846 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
849 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
850 arguments to a function, number in a value history, register number, etc.)
851 where the value must not be larger than can fit in an int. */
853 extern int longest_to_int (LONGEST);
855 /* Assorted functions we can declare, now that const and volatile are
858 extern char *savestring (const char *, size_t);
860 extern char *msavestring (void *, const char *, size_t);
862 extern char *mstrsave (void *, const char *);
864 /* Robust versions of same. Throw an internal error when no memory,
865 guard against stray NULL arguments. */
866 extern void *xmmalloc (void *md, size_t size);
867 extern void *xmrealloc (void *md, void *ptr, size_t size);
868 extern void *xmcalloc (void *md, size_t number, size_t size);
869 extern void xmfree (void *md, void *ptr);
871 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
873 extern void xfree (void *);
875 /* Utility macros to allocate typed memory. Avoids errors like:
876 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
877 sizeof (struct foo), 0). */
878 #define XZALLOC(TYPE) ((TYPE*) memset (xmalloc (sizeof (TYPE)), 0, sizeof (TYPE)))
879 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
880 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
882 /* Like asprintf/vasprintf but get an internal_error if the call
884 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
885 extern void xvasprintf (char **ret, const char *format, va_list ap);
887 /* Like asprintf, but return the string, throw an error if no memory. */
888 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2);
890 extern int parse_escape (char **);
892 /* Message to be printed before the error message, when an error occurs. */
894 extern char *error_pre_print;
896 /* Message to be printed before the error message, when an error occurs. */
898 extern char *quit_pre_print;
900 /* Message to be printed before the warning message, when a warning occurs. */
902 extern char *warning_pre_print;
904 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
906 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
908 extern NORETURN void error_silent (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
910 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
912 /* Initialize the error buffer. */
913 extern void error_init (void);
915 /* Returns a freshly allocate buffer containing the last error
917 extern char *error_last_message (void);
919 /* Output arbitrary error message. */
920 extern void error_output_message (char *pre_print, char *msg);
922 extern NORETURN void internal_verror (const char *file, int line,
923 const char *, va_list ap) ATTR_NORETURN;
925 extern NORETURN void internal_error (const char *file, int line,
926 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
928 extern void internal_vwarning (const char *file, int line,
929 const char *, va_list ap);
931 extern void internal_warning (const char *file, int line,
932 const char *, ...) ATTR_FORMAT (printf, 3, 4);
934 extern NORETURN void nomem (long) ATTR_NORETURN;
936 /* Reasons for calling throw_exception(). NOTE: all reason values
937 must be less than zero. enum value 0 is reserved for internal use
938 as the return value from an initial setjmp(). The function
939 catch_exceptions() reserves values >= 0 as legal results from its
944 /* User interrupt. */
946 /* Any other error. */
950 #define ALL_CLEANUPS ((struct cleanup *)0)
952 #define RETURN_MASK(reason) (1 << (int)(-reason))
953 #define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT)
954 #define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR)
955 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
956 typedef int return_mask;
958 /* Throw an exception of type RETURN_REASON. Will execute a LONG JUMP
959 to the inner most containing exception handler established using
960 catch_exceptions() (or the legacy catch_errors()).
962 Code normally throws an exception using error() et.al. For various
963 reaons, GDB also contains code that throws an exception directly.
964 For instance, the remote*.c targets contain CNTRL-C signal handlers
965 that propogate the QUIT event up the exception chain. ``This could
966 be a good thing or a dangerous thing.'' -- the Existential Wombat. */
968 extern NORETURN void throw_exception (enum return_reason) ATTR_NORETURN;
970 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
971 handler. If an exception (enum return_reason) is thrown using
972 throw_exception() than all cleanups installed since
973 catch_exceptions() was entered are invoked, the (-ve) exception
974 value is then returned by catch_exceptions. If FUNC() returns
975 normally (with a postive or zero return value) then that value is
976 returned by catch_exceptions(). It is an internal_error() for
977 FUNC() to return a negative value.
979 For the period of the FUNC() call: UIOUT is installed as the output
980 builder; ERRSTRING is installed as the error/quit message; and a
981 new cleanup_chain is established. The old values are restored
982 before catch_exceptions() returns.
984 The variant catch_exceptions_with_msg() is the same as
985 catch_exceptions() but adds the ability to return an allocated
986 copy of the gdb error message. This is used when a silent error is
987 issued and the caller wants to manually issue the error message.
989 FIXME; cagney/2001-08-13: The need to override the global UIOUT
990 builder variable should just go away.
992 This function superseeds catch_errors().
994 This function uses SETJMP() and LONGJUMP(). */
997 typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args);
998 extern int catch_exceptions (struct ui_out *uiout,
999 catch_exceptions_ftype *func, void *func_args,
1000 char *errstring, return_mask mask);
1001 extern int catch_exceptions_with_msg (struct ui_out *uiout,
1002 catch_exceptions_ftype *func,
1004 char *errstring, char **gdberrmsg,
1007 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
1008 otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
1009 probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1010 value. It's unfortunate that, catch_errors() does not return an
1011 indication of the exact exception that it caught - quit_flag might
1014 This function is superseeded by catch_exceptions(). */
1016 typedef int (catch_errors_ftype) (void *);
1017 extern int catch_errors (catch_errors_ftype *, void *, char *, return_mask);
1019 /* Template to catch_errors() that wraps calls to command
1022 typedef void (catch_command_errors_ftype) (char *, int);
1023 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1025 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1027 extern void vwarning (const char *, va_list args);
1029 /* List of known OS ABIs. If you change this, make sure to update the
1030 table in osabi.c. */
1033 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
1035 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
1042 GDB_OSABI_FREEBSD_AOUT,
1043 GDB_OSABI_FREEBSD_ELF,
1044 GDB_OSABI_NETBSD_AOUT,
1045 GDB_OSABI_NETBSD_ELF,
1046 GDB_OSABI_OPENBSD_ELF,
1056 GDB_OSABI_ARM_EABI_V1,
1057 GDB_OSABI_ARM_EABI_V2,
1063 GDB_OSABI_INVALID /* keep this last */
1066 /* Global functions from other, non-gdb GNU thingies.
1067 Libiberty thingies are no longer declared here. We include libiberty.h
1070 #ifndef GETENV_PROVIDED
1071 extern char *getenv (const char *);
1074 /* From other system libraries */
1076 #ifdef HAVE_STDDEF_H
1080 #ifdef HAVE_STDLIB_H
1084 #define min(a, b) ((a) < (b) ? (a) : (b))
1087 #define max(a, b) ((a) > (b) ? (a) : (b))
1091 /* We take the address of fclose later, but some stdio's forget
1092 to declare this. We can't always declare it since there's
1093 no way to declare the parameters without upsetting some compiler
1096 #ifndef FCLOSE_PROVIDED
1097 extern int fclose (FILE *);
1101 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1104 /* Various possibilities for alloca. */
1107 #define alloca __builtin_alloca
1108 #else /* Not GNU C */
1109 #ifdef HAVE_ALLOCA_H
1116 /* We need to be careful not to declare this in a way which conflicts with
1117 bison. Bison never declares it as char *, but under various circumstances
1118 (like __hpux) we need to use void *. */
1119 extern void *alloca ();
1120 #endif /* Not _AIX */
1121 #endif /* Not HAVE_ALLOCA_H */
1122 #endif /* Not GNU C */
1123 #endif /* alloca not defined */
1125 /* Is GDB multi-arch? If there's a "tm.h" file, it is not. */
1126 #ifndef GDB_MULTI_ARCH
1128 #define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
1130 #define GDB_MULTI_ARCH GDB_MULTI_ARCH_PURE
1134 /* Dynamic target-system-dependent parameters for GDB. */
1135 #include "gdbarch.h"
1137 /* Maximum size of a register. Something small, but large enough for
1138 all known ISAs. If it turns out to be too small, make it bigger. */
1140 enum { MAX_REGISTER_SIZE = 16 };
1142 /* Static target-system-dependent parameters for GDB. */
1144 /* Number of bits in a char or unsigned char for the target machine.
1145 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1146 #if !defined (TARGET_CHAR_BIT)
1147 #define TARGET_CHAR_BIT 8
1150 /* If we picked up a copy of CHAR_BIT from a configuration file
1151 (which may get it by including <limits.h>) then use it to set
1152 the number of bits in a host char. If not, use the same size
1155 #if defined (CHAR_BIT)
1156 #define HOST_CHAR_BIT CHAR_BIT
1158 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1161 /* The bit byte-order has to do just with numbering of bits in
1162 debugging symbols and such. Conceptually, it's quite separate
1163 from byte/word byte order. */
1165 #if !defined (BITS_BIG_ENDIAN)
1166 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1171 extern LONGEST extract_signed_integer (const void *, int);
1173 extern ULONGEST extract_unsigned_integer (const void *, int);
1175 extern int extract_long_unsigned_integer (const void *, int, LONGEST *);
1177 extern CORE_ADDR extract_typed_address (const void *buf, struct type *type);
1179 extern void store_signed_integer (void *, int, LONGEST);
1181 extern void store_unsigned_integer (void *, int, ULONGEST);
1183 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1188 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1190 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1192 extern int watchdog;
1194 /* Hooks for alternate command interfaces. */
1196 /* The name of the interpreter if specified on the command line. */
1197 extern char *interpreter_p;
1199 /* If a given interpreter matches INTERPRETER_P then it should update
1200 command_loop_hook and init_ui_hook with the per-interpreter
1202 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1204 struct target_waitstatus;
1205 struct cmd_list_element;
1207 /* Should the asynchronous variant of the interpreter (using the
1208 event-loop) be enabled? */
1209 extern int event_loop_p;
1211 extern void (*init_ui_hook) (char *argv0);
1212 extern void (*command_loop_hook) (void);
1213 extern void (*show_load_progress) (const char *section,
1214 unsigned long section_sent,
1215 unsigned long section_size,
1216 unsigned long total_sent,
1217 unsigned long total_size);
1218 extern void (*print_frame_info_listing_hook) (struct symtab * s,
1219 int line, int stopline,
1221 extern struct frame_info *parse_frame_specification (char *frame_exp);
1222 extern int (*query_hook) (const char *, va_list);
1223 extern void (*warning_hook) (const char *, va_list);
1224 extern void (*flush_hook) (struct ui_file * stream);
1225 extern void (*create_breakpoint_hook) (struct breakpoint * b);
1226 extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1227 extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1228 extern void (*interactive_hook) (void);
1229 extern void (*registers_changed_hook) (void);
1230 extern void (*readline_begin_hook) (char *,...);
1231 extern char *(*readline_hook) (char *);
1232 extern void (*readline_end_hook) (void);
1233 extern void (*register_changed_hook) (int regno);
1234 extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1235 extern void (*context_hook) (int);
1236 extern ptid_t (*target_wait_hook) (ptid_t ptid,
1237 struct target_waitstatus * status);
1239 extern void (*attach_hook) (void);
1240 extern void (*detach_hook) (void);
1241 extern void (*call_command_hook) (struct cmd_list_element * c,
1242 char *cmd, int from_tty);
1244 extern void (*set_hook) (struct cmd_list_element * c);
1246 extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1248 extern void (*error_begin_hook) (void);
1250 extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1253 /* Inhibit window interface if non-zero. */
1255 extern int use_windows;
1257 /* Symbolic definitions of filename-related things. */
1258 /* FIXME, this doesn't work very well if host and executable
1259 filesystems conventions are different. */
1261 #ifndef DIRNAME_SEPARATOR
1262 #define DIRNAME_SEPARATOR ':'
1265 #ifndef SLASH_STRING
1266 #define SLASH_STRING "/"
1271 # define GLOBAL_CURDIR
1274 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1275 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1276 in the code actually refer to a lightweight process id, i.e,
1277 something that can be considered a process id in its own right for
1278 certain purposes. */
1281 #define PIDGET(PTID) (ptid_get_pid (PTID))
1282 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1283 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1286 /* Define well known filenos if the system does not define them. */
1287 #ifndef STDIN_FILENO
1288 #define STDIN_FILENO 0
1290 #ifndef STDOUT_FILENO
1291 #define STDOUT_FILENO 1
1293 #ifndef STDERR_FILENO
1294 #define STDERR_FILENO 2
1297 /* If this definition isn't overridden by the header files, assume
1298 that isatty and fileno exist on this system. */
1300 #define ISATTY(FP) (isatty (fileno (FP)))
1303 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1304 power of 2). Round up/down when necessary. Examples of correct
1307 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1308 write_memory (addr, value, len);
1313 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1314 write_memory (sp, value, len);
1316 Note that uses such as:
1318 write_memory (addr, value, len);
1319 addr += align_up (len, 8);
1323 sp -= align_up (len, 8);
1324 write_memory (sp, value, len);
1326 are typically not correct as they don't ensure that the address (SP
1327 or ADDR) is correctly aligned (relying on previous alignment to
1328 keep things right). This is also why the methods are called
1329 "align_..." instead of "round_..." as the latter reads better with
1330 this incorrect coding style. */
1332 extern ULONGEST align_up (ULONGEST v, int n);
1333 extern ULONGEST align_down (ULONGEST v, int n);
1335 #endif /* #ifndef DEFS_H */