1 /* Machine independent variables that describe the core file under GDB.
3 Copyright (C) 1986-2016 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Interface routines for core, executable, etc. */
22 #if !defined (GDBCORE_H)
32 /* Return the name of the executable file as a string.
33 ERR nonzero means get error if there is none specified;
34 otherwise return 0 in that case. */
36 extern char *get_exec_file (int err);
38 /* Nonzero if there is a core file. */
40 extern int have_core_file_p (void);
42 /* Report a memory error with error(). */
44 extern void memory_error (enum target_xfer_status status, CORE_ADDR memaddr);
46 /* The string 'memory_error' would use as exception message. Space
47 for the result is malloc'd, caller must free. */
49 extern char *memory_error_message (enum target_xfer_status err,
50 struct gdbarch *gdbarch, CORE_ADDR memaddr);
52 /* Like target_read_memory, but report an error if can't read. */
54 extern void read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
56 /* Like target_read_stack, but report an error if can't read. */
58 extern void read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
60 /* Like target_read_code, but report an error if can't read. */
62 extern void read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
64 /* Read an integer from debugged memory, given address and number of
67 extern LONGEST read_memory_integer (CORE_ADDR memaddr,
68 int len, enum bfd_endian byte_order);
69 extern int safe_read_memory_integer (CORE_ADDR memaddr, int len,
70 enum bfd_endian byte_order,
71 LONGEST *return_value);
73 /* Read an unsigned integer from debugged memory, given address and
76 extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr,
78 enum bfd_endian byte_order);
79 extern int safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len,
80 enum bfd_endian byte_order,
81 ULONGEST *return_value);
83 /* Read an integer from debugged code memory, given address,
84 number of bytes, and byte order for code. */
86 extern LONGEST read_code_integer (CORE_ADDR memaddr, int len,
87 enum bfd_endian byte_order);
89 /* Read an unsigned integer from debugged code memory, given address,
90 number of bytes, and byte order for code. */
92 extern ULONGEST read_code_unsigned_integer (CORE_ADDR memaddr,
94 enum bfd_endian byte_order);
96 /* Read a null-terminated string from the debuggee's memory, given
97 address, a buffer into which to place the string, and the maximum
100 extern void read_memory_string (CORE_ADDR, char *, int);
102 /* Read the pointer of type TYPE at ADDR, and return the address it
105 CORE_ADDR read_memory_typed_address (CORE_ADDR addr, struct type *type);
107 /* Same as target_write_memory, but report an error if can't
110 extern void write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
113 /* Same as write_memory, but notify 'memory_changed' observers. */
115 extern void write_memory_with_notification (CORE_ADDR memaddr,
116 const bfd_byte *myaddr,
119 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
120 extern void write_memory_unsigned_integer (CORE_ADDR addr, int len,
121 enum bfd_endian byte_order,
124 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
125 extern void write_memory_signed_integer (CORE_ADDR addr, int len,
126 enum bfd_endian byte_order,
129 /* Hook for `exec_file_command' command to call. */
131 extern void (*deprecated_exec_file_display_hook) (const char *filename);
133 /* Hook for "file_command", which is more useful than above
134 (because it is invoked AFTER symbols are read, not before). */
136 extern void (*deprecated_file_changed_hook) (char *filename);
138 extern void specify_exec_file_hook (void (*hook) (const char *filename));
140 /* Binary File Diddler for the core file. */
142 extern bfd *core_bfd;
144 extern struct target_ops *core_target;
146 /* Whether to open exec and core files read-only or read-write. */
148 extern int write_files;
150 extern void core_file_command (char *filename, int from_tty);
152 extern void exec_file_attach (const char *filename, int from_tty);
154 /* If the filename of the main executable is unknown, attempt to
155 determine it. If a filename is determined, proceed as though
156 it was just specified with the "file" command. Do nothing if
157 the filename of the main executable is already known.
158 DEFER_BP_RESET uses SYMFILE_DEFER_BP_RESET for the main symbol file. */
160 extern void exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty);
162 extern void exec_file_clear (int from_tty);
164 extern void validate_files (void);
166 /* The current default bfd target. */
168 extern char *gnutarget;
170 extern void set_gnutarget (char *);
172 /* Structure to keep track of core register reading functions for
173 various core file types. */
178 /* BFD flavour that a core file handler is prepared to read. This
179 can be used by the handler's core tasting function as a first
180 level filter to reject BFD's that don't have the right
183 enum bfd_flavour core_flavour;
185 /* Core file handler function to call to recognize corefile
186 formats that BFD rejects. Some core file format just don't fit
187 into the BFD model, or may require other resources to identify
188 them, that simply aren't available to BFD (such as symbols from
189 another file). Returns nonzero if the handler recognizes the
190 format, zero otherwise. */
192 int (*check_format) (bfd *);
194 /* Core file handler function to call to ask if it can handle a
195 given core file format or not. Returns zero if it can't,
196 nonzero otherwise. */
198 int (*core_sniffer) (struct core_fns *, bfd *);
200 /* Extract the register values out of the core file and supply them
203 CORE_REG_SECT points to the register values themselves, read into
206 CORE_REG_SIZE is the size of that area.
208 WHICH says which set of registers we are handling:
209 0 --- integer registers
210 2 --- floating-point registers, on machines where they are
212 3 --- extended floating-point registers, on machines where
213 these are present in yet a third area. (GNU/Linux uses
214 this to get at the SSE registers.)
216 REG_ADDR is the offset from u.u_ar0 to the register values relative to
217 core_reg_sect. This is used with old-fashioned core files to locate the
218 registers in a large upage-plus-stack ".reg" section. Original upage
219 address X is at location core_reg_sect+x+reg_addr. */
221 void (*core_read_registers) (struct regcache *regcache,
223 unsigned core_reg_size,
224 int which, CORE_ADDR reg_addr);
226 /* Finds the next struct core_fns. They are allocated and
227 initialized in whatever module implements the functions pointed
228 to; an initializer calls deprecated_add_core_fns to add them to
231 struct core_fns *next;
235 /* NOTE: cagney/2004-04-05: Replaced by "regset.h" and
236 regset_from_core_section(). */
237 extern void deprecated_add_core_fns (struct core_fns *cf);
238 extern int default_core_sniffer (struct core_fns *cf, bfd * abfd);
239 extern int default_check_format (bfd * abfd);
241 #endif /* !defined (GDBCORE_H) */