1 /* Machine independent variables that describe the core file under GDB.
3 Copyright (C) 1986-1987, 1989-2001, 2004, 2007-2012 Free Software
6 This file is part of GDB.
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.
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.
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/>. */
21 /* Interface routines for core, executable, etc. */
23 #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 (int status, CORE_ADDR memaddr);
46 /* Like target_read_memory, but report an error if can't read. */
48 extern void read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
50 /* Like target_read_stack, but report an error if can't read. */
52 extern void read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
54 /* Read an integer from debugged memory, given address and number of
57 extern LONGEST read_memory_integer (CORE_ADDR memaddr,
58 int len, enum bfd_endian byte_order);
59 extern int safe_read_memory_integer (CORE_ADDR memaddr, int len,
60 enum bfd_endian byte_order,
61 LONGEST *return_value);
63 /* Read an unsigned integer from debugged memory, given address and
66 extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr,
68 enum bfd_endian byte_order);
70 /* Read a null-terminated string from the debuggee's memory, given
71 address, a buffer into which to place the string, and the maximum
74 extern void read_memory_string (CORE_ADDR, char *, int);
76 /* Read the pointer of type TYPE at ADDR, and return the address it
79 CORE_ADDR read_memory_typed_address (CORE_ADDR addr, struct type *type);
81 /* This takes a char *, not void *. This is probably right, because
82 passing in an int * or whatever is wrong with respect to
83 byteswapping, alignment, different sizes for host vs. target types,
86 extern void write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
89 /* Same as write_memory, but notify 'memory_changed' observers. */
91 extern void write_memory_with_notification (CORE_ADDR memaddr,
92 const bfd_byte *myaddr,
95 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
96 extern void write_memory_unsigned_integer (CORE_ADDR addr, int len,
97 enum bfd_endian byte_order,
100 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
101 extern void write_memory_signed_integer (CORE_ADDR addr, int len,
102 enum bfd_endian byte_order,
105 /* Hook for `exec_file_command' command to call. */
107 extern void (*deprecated_exec_file_display_hook) (char *filename);
109 /* Hook for "file_command", which is more useful than above
110 (because it is invoked AFTER symbols are read, not before). */
112 extern void (*deprecated_file_changed_hook) (char *filename);
114 extern void specify_exec_file_hook (void (*hook) (char *filename));
116 /* Binary File Diddler for the core file. */
118 extern bfd *core_bfd;
120 extern struct target_ops *core_target;
122 /* Whether to open exec and core files read-only or read-write. */
124 extern int write_files;
126 extern void core_file_command (char *filename, int from_tty);
128 extern void exec_file_attach (char *filename, int from_tty);
130 extern void exec_file_clear (int from_tty);
132 extern void validate_files (void);
134 /* The current default bfd target. */
136 extern char *gnutarget;
138 extern void set_gnutarget (char *);
140 /* Structure to keep track of core register reading functions for
141 various core file types. */
146 /* BFD flavour that a core file handler is prepared to read. This
147 can be used by the handler's core tasting function as a first
148 level filter to reject BFD's that don't have the right
151 enum bfd_flavour core_flavour;
153 /* Core file handler function to call to recognize corefile
154 formats that BFD rejects. Some core file format just don't fit
155 into the BFD model, or may require other resources to identify
156 them, that simply aren't available to BFD (such as symbols from
157 another file). Returns nonzero if the handler recognizes the
158 format, zero otherwise. */
160 int (*check_format) (bfd *);
162 /* Core file handler function to call to ask if it can handle a
163 given core file format or not. Returns zero if it can't,
164 nonzero otherwise. */
166 int (*core_sniffer) (struct core_fns *, bfd *);
168 /* Extract the register values out of the core file and supply them
171 CORE_REG_SECT points to the register values themselves, read into
174 CORE_REG_SIZE is the size of that area.
176 WHICH says which set of registers we are handling:
177 0 --- integer registers
178 2 --- floating-point registers, on machines where they are
180 3 --- extended floating-point registers, on machines where
181 these are present in yet a third area. (GNU/Linux uses
182 this to get at the SSE registers.)
184 REG_ADDR is the offset from u.u_ar0 to the register values relative to
185 core_reg_sect. This is used with old-fashioned core files to locate the
186 registers in a large upage-plus-stack ".reg" section. Original upage
187 address X is at location core_reg_sect+x+reg_addr. */
189 void (*core_read_registers) (struct regcache *regcache,
191 unsigned core_reg_size,
192 int which, CORE_ADDR reg_addr);
194 /* Finds the next struct core_fns. They are allocated and
195 initialized in whatever module implements the functions pointed
196 to; an initializer calls deprecated_add_core_fns to add them to
199 struct core_fns *next;
203 /* NOTE: cagney/2004-04-05: Replaced by "regset.h" and
204 regset_from_core_section(). */
205 extern void deprecated_add_core_fns (struct core_fns *cf);
206 extern int default_core_sniffer (struct core_fns *cf, bfd * abfd);
207 extern int default_check_format (bfd * abfd);
209 struct target_section *deprecated_core_resize_section_table (int num_added);
211 #endif /* !defined (GDBCORE_H) */