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. */
69 /* An address in the program being debugged. Host byte order. Rather
70 than duplicate all the logic in BFD which figures out what type
71 this is (long, long long, etc.) and whether it needs to be 64
72 bits (the host/target interactions are subtle), we just use
75 typedef bfd_vma CORE_ADDR;
77 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
83 #define LONGEST BFD_HOST_64_BIT
84 #define ULONGEST BFD_HOST_U_64_BIT
88 #ifdef CC_HAS_LONG_LONG
89 #define LONGEST long long
90 #define ULONGEST unsigned long long
92 #ifdef BFD_HOST_64_BIT
93 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
94 (e.g. i386-windows) so try it. */
95 #define LONGEST BFD_HOST_64_BIT
96 #define ULONGEST BFD_HOST_U_64_BIT
99 #define ULONGEST unsigned long
103 #endif /* No BFD64 */
105 #endif /* ! LONGEST */
108 #define min(a, b) ((a) < (b) ? (a) : (b))
111 #define max(a, b) ((a) > (b) ? (a) : (b))
114 /* Macros to do string compares.
116 NOTE: cagney/2000-03-14:
118 While old code can continue to refer to these macros, new code is
119 probably better off using strcmp() directly vis: ``strcmp() == 0''
120 and ``strcmp() != 0''.
122 This is because modern compilers can directly inline strcmp()
123 making the original justification for these macros - avoid function
124 call overhead by pre-testing the first characters
125 (``*X==*Y?...:0'') - redundant.
127 ``Even if [...] testing the first character does have a modest
128 performance improvement, I'd rather that whenever a performance
129 issue is found that we spend the effort on algorithmic
130 optimizations than micro-optimizing.'' J.T. */
132 /* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by
133 testing GDB on a stabs system have been replaced by equivalent
134 str[n]cmp calls. To avoid the possability of introducing bugs when
135 making untested changes, the remaining references were deprecated
136 rather than replaced. */
138 /* DISCLAIMER: cagney/2003-11-23: Simplified definition of these
139 macros so that they just map directly onto strcmp equivalent. I'm
140 not responsible for any breakage due to code that relied on the old
141 underlying implementation. */
143 #define DEPRECATED_STREQ(a,b) (strcmp ((a), (b)) == 0)
144 #define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0)
146 /* Check if a character is one of the commonly used C++ marker characters. */
147 extern int is_cplus_marker (int);
149 /* enable xdb commands if set */
150 extern int xdb_commands;
152 /* enable dbx commands if set */
153 extern int dbx_commands;
155 /* System root path, used to find libraries etc. */
156 extern char *gdb_sysroot;
158 extern int quit_flag;
159 extern int immediate_quit;
160 extern int sevenbit_strings;
162 extern void quit (void);
164 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
165 benefits of having a ``QUIT'' macro rather than a function are
166 marginal. If the overhead of a QUIT function call is proving
167 significant then its calling frequency should probably be reduced
168 [kingdon]. A profile analyzing the current situtation is
172 /* do twice to force compiler warning */
173 #define QUIT_FIXME "FIXME"
174 #define QUIT_FIXME "ignoring redefinition of QUIT"
177 if (quit_flag) quit (); \
178 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
182 /* Languages represented in the symbol table and elsewhere.
183 This should probably be in language.h, but since enum's can't
184 be forward declared to satisfy opaque references before their
185 actual definition, needs to be here. */
189 language_unknown, /* Language not known */
190 language_auto, /* Placeholder for automatic setting */
192 language_cplus, /* C++ */
193 language_objc, /* Objective-C */
194 language_java, /* Java */
195 language_fortran, /* Fortran */
196 language_m2, /* Modula-2 */
197 language_asm, /* Assembly language */
198 language_scm, /* Scheme / Guile */
199 language_pascal, /* Pascal */
200 language_ada, /* Ada */
201 language_minimal, /* All other languages, minimal support only */
209 unspecified_precision
212 /* A generic, not quite boolean, enumeration. */
220 /* Potential ways that a function can return a value of a given type. */
221 enum return_value_convention
223 /* Where the return value has been squeezed into one or more
225 RETURN_VALUE_REGISTER_CONVENTION,
226 /* Commonly known as the "struct return convention". The caller
227 passes an additional hidden first parameter to the caller. That
228 parameter contains the address at which the value being returned
229 should be stored. While typically, and historically, used for
230 large structs, this is convention is applied to values of many
232 RETURN_VALUE_STRUCT_CONVENTION,
233 /* Like the "struct return convention" above, but where the ABI
234 guarantees that the called function stores the address at which
235 the value being returned is stored in a well-defined location,
236 such as a register or memory slot in the stack frame. Don't use
237 this if the ABI doesn't explicitly guarantees this. */
238 RETURN_VALUE_ABI_RETURNS_ADDRESS,
239 /* Like the "struct return convention" above, but where the ABI
240 guarantees that the address at which the value being returned is
241 stored will be available in a well-defined location, such as a
242 register or memory slot in the stack frame. Don't use this if
243 the ABI doesn't explicitly guarantees this. */
244 RETURN_VALUE_ABI_PRESERVES_ADDRESS,
247 /* the cleanup list records things that have to be undone
248 if an error happens (descriptors to be closed, memory to be freed, etc.)
249 Each link in the chain records a function to call and an
252 Use make_cleanup to add an element to the cleanup chain.
253 Use do_cleanups to do all cleanup actions back to a given
254 point in the chain. Use discard_cleanups to remove cleanups
255 from the chain back to a given point, not doing them. */
259 struct cleanup *next;
260 void (*function) (void *);
265 /* The ability to declare that a function never returns is useful, but
266 not really required to compile GDB successfully, so the NORETURN and
267 ATTR_NORETURN macros normally expand into nothing. */
269 /* If compiling with older versions of GCC, a function may be declared
270 "volatile" to indicate that it does not return. */
273 #if defined(__GNUC__) \
274 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
275 #define NORETURN volatile
277 #define NORETURN /* nothing */
281 /* GCC 2.5 and later versions define a function attribute "noreturn",
282 which is the preferred way to declare that a function never returns.
283 However GCC 2.7 appears to be the first version in which this fully
284 works everywhere we use it. */
286 #ifndef ATTR_NORETURN
287 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
288 #define ATTR_NORETURN __attribute__ ((noreturn))
290 #define ATTR_NORETURN /* nothing */
295 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
296 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
298 #define ATTR_FORMAT(type, x, y) /* nothing */
302 /* Be conservative and use enum bitfields only with GCC.
303 This is copied from gcc 3.3.1, system.h. */
305 #if defined(__GNUC__) && (__GNUC__ >= 2)
306 #define ENUM_BITFIELD(TYPE) enum TYPE
308 #define ENUM_BITFIELD(TYPE) unsigned int
311 /* Needed for various prototypes */
319 extern void initialize_utils (void);
321 extern void notice_quit (void);
323 extern int strcmp_iw (const char *, const char *);
325 extern int strcmp_iw_ordered (const char *, const char *);
327 extern int streq (const char *, const char *);
329 extern int subset_compare (char *, char *);
331 extern char *safe_strerror (int);
333 extern void request_quit (int);
335 #define ALL_CLEANUPS ((struct cleanup *)0)
337 extern void do_cleanups (struct cleanup *);
338 extern void do_final_cleanups (struct cleanup *);
339 extern void do_run_cleanups (struct cleanup *);
340 extern void do_exec_cleanups (struct cleanup *);
341 extern void do_exec_error_cleanups (struct cleanup *);
343 extern void discard_cleanups (struct cleanup *);
344 extern void discard_final_cleanups (struct cleanup *);
345 extern void discard_exec_error_cleanups (struct cleanup *);
346 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
348 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
349 make_cleanup function declarations below. Do not use this typedef
350 as a cast when passing functions into the make_cleanup() code.
351 Instead either use a bounce function or add a wrapper function.
352 Calling a f(char*) function with f(void*) is non-portable. */
353 typedef void (make_cleanup_ftype) (void *);
355 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
357 extern struct cleanup *make_cleanup_freeargv (char **);
360 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
362 struct section_addr_info;
363 extern struct cleanup *(make_cleanup_free_section_addr_info
364 (struct section_addr_info *));
366 extern struct cleanup *make_cleanup_close (int fd);
368 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
370 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
372 extern struct cleanup *make_my_cleanup (struct cleanup **,
373 make_cleanup_ftype *, void *);
375 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
377 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
378 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
380 extern struct cleanup *save_cleanups (void);
381 extern struct cleanup *save_final_cleanups (void);
382 extern struct cleanup *save_my_cleanups (struct cleanup **);
384 extern void restore_cleanups (struct cleanup *);
385 extern void restore_final_cleanups (struct cleanup *);
386 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
388 extern void free_current_contents (void *);
390 extern void null_cleanup (void *);
392 extern int myread (int, char *, int);
394 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
395 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
396 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
398 extern void init_page_info (void);
400 extern char *gdb_realpath (const char *);
401 extern char *xfullpath (const char *);
403 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
404 unsigned char *buf, size_t len);
406 /* From demangle.c */
408 extern void set_demangling_style (char *);
413 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
414 extern use_struct_convention_fn generic_use_struct_convention;
417 /* Annotation stuff. */
419 extern int annotation_level; /* in stack.c */
421 extern void begin_line (void);
423 extern void wrap_here (char *);
425 extern void reinitialize_more_filter (void);
428 extern struct ui_file *gdb_stdout;
430 extern struct ui_file *gdb_stdin;
431 /* Serious error notifications */
432 extern struct ui_file *gdb_stderr;
433 /* Log/debug/trace messages that should bypass normal stdout/stderr
434 filtering. For moment, always call this stream using
435 *_unfiltered. In the very near future that restriction shall be
436 removed - either call shall be unfiltered. (cagney 1999-06-13). */
437 extern struct ui_file *gdb_stdlog;
438 /* Target output that should bypass normal stdout/stderr filtering.
439 For moment, always call this stream using *_unfiltered. In the
440 very near future that restriction shall be removed - either call
441 shall be unfiltered. (cagney 1999-07-02). */
442 extern struct ui_file *gdb_stdtarg;
443 extern struct ui_file *gdb_stdtargerr;
444 extern struct ui_file *gdb_stdtargin;
448 /* More generic printf like operations. Filtered versions may return
449 non-locally on error. */
451 extern void fputs_filtered (const char *, struct ui_file *);
453 extern void fputs_unfiltered (const char *, struct ui_file *);
455 extern int fputc_filtered (int c, struct ui_file *);
457 extern int fputc_unfiltered (int c, struct ui_file *);
459 extern int putchar_filtered (int c);
461 extern int putchar_unfiltered (int c);
463 extern void puts_filtered (const char *);
465 extern void puts_unfiltered (const char *);
467 extern void puts_filtered_tabular (char *string, int width, int right);
469 extern void puts_debug (char *prefix, char *string, char *suffix);
471 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
473 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
475 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
477 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
479 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
481 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
483 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
485 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
487 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
489 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
491 extern void print_spaces (int, struct ui_file *);
493 extern void print_spaces_filtered (int, struct ui_file *);
495 extern char *n_spaces (int);
497 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
499 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
501 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
503 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
504 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
506 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
507 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
509 extern int strlen_paddr (void);
510 extern char *paddr (CORE_ADDR addr);
511 extern char *paddr_nz (CORE_ADDR addr);
512 extern char *paddr_u (CORE_ADDR addr);
513 extern char *paddr_d (LONGEST addr);
515 /* Like 0x%lx, replaces deprecated_print_address_numeric. */
516 extern const char *paddress (CORE_ADDR addr);
518 extern char *phex (ULONGEST l, int sizeof_l);
519 extern char *phex_nz (ULONGEST l, int sizeof_l);
520 extern char *int_string (LONGEST, int, int, int, int);
522 /* Like paddr() only print/scan raw CORE_ADDR. The output from
523 core_addr_to_string() can be passed direct to
524 string_to_core_addr(). */
525 extern const char *core_addr_to_string (const CORE_ADDR addr);
526 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
527 extern CORE_ADDR string_to_core_addr (const char *my_string);
529 /* Return a string that contains a number formatted as a hex
531 extern char *hex_string (LONGEST);
532 extern char *hex_string_custom (LONGEST, int);
534 extern void fprintf_symbol_filtered (struct ui_file *, char *,
537 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
539 extern void print_sys_errmsg (const char *, int);
541 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
542 "const char *" in unistd.h, so we can't declare the argument
545 extern char *re_comp (const char *);
549 extern void symbol_file_command (char *, int);
551 /* Remote targets may wish to use this as their load function. */
552 extern void generic_load (char *name, int from_tty);
554 /* Summarise a download */
555 extern void print_transfer_performance (struct ui_file *stream,
556 unsigned long data_count,
557 unsigned long write_count,
558 unsigned long time_count);
562 typedef void initialize_file_ftype (void);
564 extern char *skip_quoted (char *);
566 extern char *gdb_readline (char *);
568 extern char *gdb_readline_wrapper (char *);
570 extern char *command_line_input (char *, int, char *);
572 extern void print_prompt (void);
574 extern int input_from_terminal_p (void);
576 extern int info_verbose;
578 /* From printcmd.c */
580 extern void set_next_address (CORE_ADDR);
582 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
585 extern int build_address_symbolic (CORE_ADDR addr,
593 extern void deprecated_print_address_numeric (CORE_ADDR, int, struct ui_file *);
595 extern void print_address (CORE_ADDR, struct ui_file *);
599 #define OPF_TRY_CWD_FIRST 0x01
600 #define OPF_SEARCH_IN_PATH 0x02
602 extern int openp (const char *, int, const char *, int, int, char **);
604 extern int source_full_path_of (char *, char **);
606 extern void mod_path (char *, char **);
608 extern void add_path (char *, char **, int);
610 extern void directory_command (char *, int);
612 extern char *source_path;
614 extern void init_source_path (void);
616 extern void init_last_source_visited (void);
620 extern void exec_set_section_offsets (bfd_signed_vma text_off,
621 bfd_signed_vma data_off,
622 bfd_signed_vma bss_off);
624 /* Take over the 'find_mapped_memory' vector from exec.c. */
625 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
631 /* Possible lvalue types. Like enum language, this should be in
632 value.h, but needs to be here for the same reason. */
640 /* In a register. Registers are relative to a frame. */
642 /* In a gdb internal variable. */
644 /* Part of a gdb internal variable (structure field). */
645 lval_internalvar_component
648 /* Control types for commands */
650 enum misc_command_type
658 enum command_control_type
668 /* Structure for saved commands lines
669 (for breakpoints, defined commands, etc). */
673 struct command_line *next;
675 enum command_control_type control_type;
677 struct command_line **body_list;
680 extern struct command_line *read_command_lines (char *, int);
682 extern void free_command_lines (struct command_line **);
684 /* To continue the execution commands when running gdb asynchronously.
685 A continuation structure contains a pointer to a function to be called
686 to finish the command, once the target has stopped. Such mechanism is
687 used bt the finish and until commands, and in the remote protocol
688 when opening an extended-remote connection. */
690 struct continuation_arg
692 struct continuation_arg *next;
693 union continuation_data {
702 void (*continuation_hook) (struct continuation_arg *);
703 struct continuation_arg *arg_list;
704 struct continuation *next;
708 extern struct continuation *cmd_continuation;
709 /* Used only by the step_1 function. */
710 extern struct continuation *intermediate_continuation;
713 extern void add_continuation (void (*)(struct continuation_arg *),
714 struct continuation_arg *);
715 extern void do_all_continuations (void);
716 extern void discard_all_continuations (void);
718 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
719 struct continuation_arg *);
720 extern void do_all_intermediate_continuations (void);
721 extern void discard_all_intermediate_continuations (void);
723 /* String containing the current directory (what getwd would return). */
725 extern char *current_directory;
727 /* Default radixes for input and output. Only some values supported. */
728 extern unsigned input_radix;
729 extern unsigned output_radix;
731 /* Possibilities for prettyprint parameters to routines which print
732 things. Like enum language, this should be in value.h, but needs
733 to be here for the same reason. FIXME: If we can eliminate this
734 as an arg to LA_VAL_PRINT, then we can probably move it back to
739 Val_no_prettyprint = 0,
741 /* Use the default setting which the user has specified. */
745 /* The ptid struct is a collection of the various "ids" necessary
746 for identifying the inferior. This consists of the process id
747 (pid), thread id (tid), and other fields necessary for uniquely
748 identifying the inferior process/thread being debugged. When
749 manipulating ptids, the constructors, accessors, and predicate
750 declared in inferior.h should be used. These are as follows:
752 ptid_build - Make a new ptid from a pid, lwp, and tid.
753 pid_to_ptid - Make a new ptid from just a pid.
754 ptid_get_pid - Fetch the pid component of a ptid.
755 ptid_get_lwp - Fetch the lwp component of a ptid.
756 ptid_get_tid - Fetch the tid component of a ptid.
757 ptid_equal - Test to see if two ptids are equal.
759 Please do NOT access the struct ptid members directly (except, of
760 course, in the implementation of the above ptid manipulation
768 /* Lightweight process id */
775 typedef struct ptid ptid_t;
779 /* Optional host machine definition. Pure autoconf targets will not
780 need a "xm.h" file. This will be a symlink to one of the xm-*.h
781 files, built by the `configure' script. */
787 /* Optional native machine support. Non-native (and possibly pure
788 multi-arch) targets do not need a "nm.h" file. This will be a
789 symlink to one of the nm-*.h files, built by the `configure'
796 /* Optional target machine definition. Pure multi-arch configurations
797 do not need a "tm.h" file. This will be a symlink to one of the
798 tm-*.h files, built by the `configure' script. */
804 /* Assume that fopen accepts the letter "b" in the mode string.
805 It is demanded by ISO C9X, and should be supported on all
806 platforms that claim to have a standard-conforming C library. On
807 true POSIX systems it will be ignored and have no effect. There
808 may still be systems without a standard-conforming C library where
809 an ISO C9X compiler (GCC) is available. Known examples are SunOS
810 4.x and 4.3BSD. This assumption means these systems are no longer
813 # include "fopen-bin.h"
816 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
817 FIXME: Assumes 2's complement arithmetic */
819 #if !defined (UINT_MAX)
820 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
823 #if !defined (INT_MAX)
824 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
827 #if !defined (INT_MIN)
828 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
831 #if !defined (ULONG_MAX)
832 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
835 #if !defined (LONG_MAX)
836 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
839 #if !defined (ULONGEST_MAX)
840 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
843 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
844 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
847 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
848 arguments to a function, number in a value history, register number, etc.)
849 where the value must not be larger than can fit in an int. */
851 extern int longest_to_int (LONGEST);
853 /* Assorted functions we can declare, now that const and volatile are
856 extern char *savestring (const char *, size_t);
858 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
860 extern void xfree (void *);
862 /* Like xmalloc, but zero the memory. */
863 extern void *xzalloc (size_t);
865 /* Utility macros to allocate typed memory. Avoids errors like:
866 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
867 sizeof (struct foo), 0). */
868 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
869 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
870 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
872 /* Like asprintf/vasprintf but get an internal_error if the call
874 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
875 extern void xvasprintf (char **ret, const char *format, va_list ap);
877 /* Like asprintf and vasprintf, but return the string, throw an error
879 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2);
880 extern char *xstrvprintf (const char *format, va_list ap);
882 /* Like snprintf, but throw an error if the output buffer is too small. */
883 extern int xsnprintf (char *str, size_t size, const char *format, ...)
884 ATTR_FORMAT (printf, 3, 4);
886 extern int parse_escape (char **);
888 /* Message to be printed before the error message, when an error occurs. */
890 extern char *error_pre_print;
892 /* Message to be printed before the error message, when an error occurs. */
894 extern char *quit_pre_print;
896 /* Message to be printed before the warning message, when a warning occurs. */
898 extern char *warning_pre_print;
900 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
902 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
904 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
906 extern NORETURN void vfatal (const char *fmt, va_list ap) ATTR_NORETURN;
908 extern NORETURN void fatal (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
910 extern NORETURN void internal_verror (const char *file, int line,
911 const char *, va_list ap) ATTR_NORETURN;
913 extern NORETURN void internal_error (const char *file, int line,
914 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
916 extern void internal_vwarning (const char *file, int line,
917 const char *, va_list ap);
919 extern void internal_warning (const char *file, int line,
920 const char *, ...) ATTR_FORMAT (printf, 3, 4);
922 extern NORETURN void nomem (long) ATTR_NORETURN;
924 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
926 extern void vwarning (const char *, va_list args);
928 /* List of known OS ABIs. If you change this, make sure to update the
932 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
934 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
941 GDB_OSABI_FREEBSD_AOUT,
942 GDB_OSABI_FREEBSD_ELF,
943 GDB_OSABI_NETBSD_AOUT,
944 GDB_OSABI_NETBSD_ELF,
945 GDB_OSABI_OPENBSD_ELF,
955 GDB_OSABI_ARM_EABI_V1,
956 GDB_OSABI_ARM_EABI_V2,
962 GDB_OSABI_INVALID /* keep this last */
965 /* Global functions from other, non-gdb GNU thingies.
966 Libiberty thingies are no longer declared here. We include libiberty.h
969 /* From other system libraries */
979 #define min(a, b) ((a) < (b) ? (a) : (b))
982 #define max(a, b) ((a) > (b) ? (a) : (b))
987 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
990 /* Various possibilities for alloca. */
993 #define alloca __builtin_alloca
994 #else /* Not GNU C */
1002 /* We need to be careful not to declare this in a way which conflicts with
1003 bison. Bison never declares it as char *, but under various circumstances
1004 (like __hpux) we need to use void *. */
1005 extern void *alloca ();
1006 #endif /* Not _AIX */
1007 #endif /* Not HAVE_ALLOCA_H */
1008 #endif /* Not GNU C */
1009 #endif /* alloca not defined */
1011 /* Dynamic target-system-dependent parameters for GDB. */
1012 #include "gdbarch.h"
1014 /* Maximum size of a register. Something small, but large enough for
1015 all known ISAs. If it turns out to be too small, make it bigger. */
1017 enum { MAX_REGISTER_SIZE = 16 };
1019 /* Static target-system-dependent parameters for GDB. */
1021 /* Number of bits in a char or unsigned char for the target machine.
1022 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1023 #if !defined (TARGET_CHAR_BIT)
1024 #define TARGET_CHAR_BIT 8
1027 /* If we picked up a copy of CHAR_BIT from a configuration file
1028 (which may get it by including <limits.h>) then use it to set
1029 the number of bits in a host char. If not, use the same size
1032 #if defined (CHAR_BIT)
1033 #define HOST_CHAR_BIT CHAR_BIT
1035 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1038 /* The bit byte-order has to do just with numbering of bits in
1039 debugging symbols and such. Conceptually, it's quite separate
1040 from byte/word byte order. */
1042 #if !defined (BITS_BIG_ENDIAN)
1043 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1048 extern LONGEST extract_signed_integer (const void *, int);
1050 extern ULONGEST extract_unsigned_integer (const void *, int);
1052 extern int extract_long_unsigned_integer (const void *, int, LONGEST *);
1054 extern CORE_ADDR extract_typed_address (const void *buf, struct type *type);
1056 extern void store_signed_integer (void *, int, LONGEST);
1058 extern void store_unsigned_integer (void *, int, ULONGEST);
1060 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1065 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1067 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1069 extern int watchdog;
1071 /* Hooks for alternate command interfaces. */
1073 /* The name of the interpreter if specified on the command line. */
1074 extern char *interpreter_p;
1076 /* If a given interpreter matches INTERPRETER_P then it should update
1077 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1078 per-interpreter implementation. */
1079 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1080 should be moved here. */
1082 struct target_waitstatus;
1083 struct cmd_list_element;
1085 extern void (*deprecated_pre_add_symbol_hook) (const char *);
1086 extern void (*deprecated_post_add_symbol_hook) (void);
1087 extern void (*selected_frame_level_changed_hook) (int);
1088 extern int (*deprecated_ui_loop_hook) (int signo);
1089 extern void (*deprecated_init_ui_hook) (char *argv0);
1090 extern void (*deprecated_command_loop_hook) (void);
1091 extern void (*deprecated_show_load_progress) (const char *section,
1092 unsigned long section_sent,
1093 unsigned long section_size,
1094 unsigned long total_sent,
1095 unsigned long total_size);
1096 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
1097 int line, int stopline,
1099 extern struct frame_info *parse_frame_specification (char *frame_exp);
1100 extern int (*deprecated_query_hook) (const char *, va_list);
1101 extern void (*deprecated_warning_hook) (const char *, va_list);
1102 extern void (*deprecated_flush_hook) (struct ui_file * stream);
1103 extern void (*deprecated_create_breakpoint_hook) (struct breakpoint * b);
1104 extern void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
1105 extern void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
1106 extern void (*deprecated_interactive_hook) (void);
1107 extern void (*deprecated_registers_changed_hook) (void);
1108 extern void (*deprecated_readline_begin_hook) (char *,...);
1109 extern char *(*deprecated_readline_hook) (char *);
1110 extern void (*deprecated_readline_end_hook) (void);
1111 extern void (*deprecated_register_changed_hook) (int regno);
1112 extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
1113 extern void (*deprecated_context_hook) (int);
1114 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1115 struct target_waitstatus * status);
1117 extern void (*deprecated_attach_hook) (void);
1118 extern void (*deprecated_detach_hook) (void);
1119 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1120 char *cmd, int from_tty);
1122 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1124 extern void (*deprecated_error_hook) (void);
1126 extern void (*deprecated_error_begin_hook) (void);
1128 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1132 /* Inhibit window interface if non-zero. */
1134 extern int use_windows;
1136 /* Symbolic definitions of filename-related things. */
1137 /* FIXME, this doesn't work very well if host and executable
1138 filesystems conventions are different. */
1142 # define GLOBAL_CURDIR
1143 # define DIRNAME_SEPARATOR ';'
1146 #ifndef DIRNAME_SEPARATOR
1147 #define DIRNAME_SEPARATOR ':'
1150 #ifndef SLASH_STRING
1151 #define SLASH_STRING "/"
1154 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1155 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1156 in the code actually refer to a lightweight process id, i.e,
1157 something that can be considered a process id in its own right for
1158 certain purposes. */
1161 #define PIDGET(PTID) (ptid_get_pid (PTID))
1162 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1163 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1166 /* Define well known filenos if the system does not define them. */
1167 #ifndef STDIN_FILENO
1168 #define STDIN_FILENO 0
1170 #ifndef STDOUT_FILENO
1171 #define STDOUT_FILENO 1
1173 #ifndef STDERR_FILENO
1174 #define STDERR_FILENO 2
1177 /* If this definition isn't overridden by the header files, assume
1178 that isatty and fileno exist on this system. */
1180 #define ISATTY(FP) (isatty (fileno (FP)))
1183 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1184 power of 2). Round up/down when necessary. Examples of correct
1187 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1188 write_memory (addr, value, len);
1193 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1194 write_memory (sp, value, len);
1196 Note that uses such as:
1198 write_memory (addr, value, len);
1199 addr += align_up (len, 8);
1203 sp -= align_up (len, 8);
1204 write_memory (sp, value, len);
1206 are typically not correct as they don't ensure that the address (SP
1207 or ADDR) is correctly aligned (relying on previous alignment to
1208 keep things right). This is also why the methods are called
1209 "align_..." instead of "round_..." as the latter reads better with
1210 this incorrect coding style. */
1212 extern ULONGEST align_up (ULONGEST v, int n);
1213 extern ULONGEST align_down (ULONGEST v, int n);
1215 #endif /* #ifndef DEFS_H */