1 /* Machine independent variables that describe the core file under GDB.
2 Copyright 1986, 1987, 1989, 1990, 1992, 1995 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Interface routines for core, executable, etc. */
23 #if !defined (GDBCORE_H)
28 /* Return the name of the executable file as a string.
29 ERR nonzero means get error if there is none specified;
30 otherwise return 0 in that case. */
32 extern char *get_exec_file (int err
);
34 /* Nonzero if there is a core file. */
36 extern int have_core_file_p (void);
38 /* Read "memory data" from whatever target or inferior we have.
39 Returns zero if successful, errno value if not. EIO is used for
40 address out of bounds. If breakpoints are inserted, returns shadow
41 contents, not the breakpoints themselves. From breakpoint.c. */
43 extern int read_memory_nobpt (CORE_ADDR memaddr
, char *myaddr
, unsigned len
);
45 /* Report a memory error with error(). */
47 extern void memory_error (int status
, CORE_ADDR memaddr
);
49 /* Like target_read_memory, but report an error if can't read. */
51 extern void read_memory (CORE_ADDR memaddr
, char *myaddr
, int len
);
53 /* Read an integer from debugged memory, given address and number of
56 extern LONGEST
read_memory_integer (CORE_ADDR memaddr
, int len
);
58 /* Read an unsigned integer from debugged memory, given address and
61 extern ULONGEST
read_memory_unsigned_integer (CORE_ADDR memaddr
, int len
);
63 /* Read a null-terminated string from the debuggee's memory, given address,
64 * a buffer into which to place the string, and the maximum available space */
65 extern void read_memory_string (CORE_ADDR
, char *, int);
67 /* This takes a char *, not void *. This is probably right, because
68 passing in an int * or whatever is wrong with respect to
69 byteswapping, alignment, different sizes for host vs. target types,
72 extern void write_memory (CORE_ADDR memaddr
, char *myaddr
, int len
);
74 extern void generic_search (int len
, char *data
, char *mask
,
75 CORE_ADDR startaddr
, int increment
,
76 CORE_ADDR lorange
, CORE_ADDR hirange
,
77 CORE_ADDR
* addr_found
, char *data_found
);
79 /* Hook for `exec_file_command' command to call. */
81 extern void (*exec_file_display_hook
) (char *filename
);
83 /* Hook for "file_command", which is more useful than above
84 (because it is invoked AFTER symbols are read, not before) */
86 extern void (*file_changed_hook
) (char *filename
);
88 extern void specify_exec_file_hook (void (*hook
) (char *filename
));
90 /* Binary File Diddlers for the exec and core files */
95 /* Whether to open exec and core files read-only or read-write. */
97 extern int write_files
;
99 extern void core_file_command (char *filename
, int from_tty
);
101 extern void exec_file_attach (char *filename
, int from_tty
);
103 extern void exec_file_command (char *filename
, int from_tty
);
105 extern void validate_files (void);
107 extern CORE_ADDR
register_addr (int regno
, CORE_ADDR blockend
);
109 extern void registers_fetched (void);
111 #if !defined (KERNEL_U_ADDR)
112 extern CORE_ADDR kernel_u_addr
;
113 #define KERNEL_U_ADDR kernel_u_addr
116 /* The target vector for core files. */
118 extern struct target_ops core_ops
;
120 /* The current default bfd target. */
122 extern char *gnutarget
;
124 extern void set_gnutarget (char *);
126 /* Structure to keep track of core register reading functions for
127 various core file types. */
132 /* BFD flavour that a core file handler is prepared to read. This
133 can be used by the handler's core tasting function as a first
134 level filter to reject BFD's that don't have the right
137 enum bfd_flavour core_flavour
;
139 /* Core file handler function to call to recognize corefile
140 formats that BFD rejects. Some core file format just don't fit
141 into the BFD model, or may require other resources to identify
142 them, that simply aren't available to BFD (such as symbols from
143 another file). Returns nonzero if the handler recognizes the
144 format, zero otherwise. */
146 int (*check_format
) (bfd
*);
148 /* Core file handler function to call to ask if it can handle a
149 given core file format or not. Returns zero if it can't,
150 nonzero otherwise. */
152 int (*core_sniffer
) (struct core_fns
*, bfd
*);
154 /* Extract the register values out of the core file and store them where
155 `read_register' will find them.
157 CORE_REG_SECT points to the register values themselves, read into
160 CORE_REG_SIZE is the size of that area.
162 WHICH says which set of registers we are handling:
163 0 --- integer registers
164 2 --- floating-point registers, on machines where they are
166 3 --- extended floating-point registers, on machines where
167 these are present in yet a third area. (GNU/Linux uses
168 this to get at the SSE registers.)
170 REG_ADDR is the offset from u.u_ar0 to the register values relative to
171 core_reg_sect. This is used with old-fashioned core files to locate the
172 registers in a large upage-plus-stack ".reg" section. Original upage
173 address X is at location core_reg_sect+x+reg_addr. */
175 void (*core_read_registers
) (char *core_reg_sect
,
176 unsigned core_reg_size
,
177 int which
, CORE_ADDR reg_addr
);
179 /* Finds the next struct core_fns. They are allocated and initialized
180 in whatever module implements the functions pointed to; an
181 initializer calls add_core_fns to add them to the global chain. */
183 struct core_fns
*next
;
187 extern void add_core_fns (struct core_fns
*cf
);
188 extern int default_core_sniffer (struct core_fns
*cf
, bfd
* abfd
);
189 extern int default_check_format (bfd
* abfd
);
191 #endif /* !defined (GDBCORE_H) */
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