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, Boston, MA 02111-1307, USA. */
20 /* Interface routines for core, executable, etc. */
22 #if !defined (GDBCORE_H)
27 /* Return the name of the executable file as a string.
28 ERR nonzero means get error if there is none specified;
29 otherwise return 0 in that case. */
31 extern char *get_exec_file PARAMS ((int err));
33 /* Nonzero if there is a core file. */
35 extern int have_core_file_p PARAMS ((void));
37 /* Read "memory data" from whatever target or inferior we have.
38 Returns zero if successful, errno value if not. EIO is used for
39 address out of bounds. If breakpoints are inserted, returns shadow
40 contents, not the breakpoints themselves. From breakpoint.c. */
42 extern int read_memory_nobpt PARAMS ((CORE_ADDR memaddr, char *myaddr,
45 /* Report a memory error with error(). */
47 extern void memory_error PARAMS ((int status, CORE_ADDR memaddr));
49 /* Like target_read_memory, but report an error if can't read. */
51 extern void read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
53 extern void read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr,
54 int len, asection *bfd_section));
56 /* Read an integer from debugged memory, given address and number of
59 extern LONGEST read_memory_integer PARAMS ((CORE_ADDR memaddr, int len));
61 /* Read an unsigned integer from debugged memory, given address and
64 extern ULONGEST read_memory_unsigned_integer PARAMS ((CORE_ADDR memaddr, int len));
66 /* Read a null-terminated string from the debuggee's memory, given address,
67 * a buffer into which to place the string, and the maximum available space */
68 extern void read_memory_string PARAMS ((CORE_ADDR, char *, int));
70 /* This takes a char *, not void *. This is probably right, because
71 passing in an int * or whatever is wrong with respect to
72 byteswapping, alignment, different sizes for host vs. target types,
75 extern void write_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
77 extern void generic_search PARAMS ((int len, char *data, char *mask,
78 CORE_ADDR startaddr, int increment,
79 CORE_ADDR lorange, CORE_ADDR hirange,
80 CORE_ADDR *addr_found, char *data_found));
82 /* Hook for `exec_file_command' command to call. */
84 extern void (*exec_file_display_hook) PARAMS ((char *filename));
86 /* Hook for "file_command", which is more useful than above
87 (because it is invoked AFTER symbols are read, not before) */
89 extern void (*file_changed_hook) PARAMS ((char *filename));
91 extern void specify_exec_file_hook PARAMS ((void (*hook) (char *filename)));
93 /* Binary File Diddlers for the exec and core files */
98 /* Whether to open exec and core files read-only or read-write. */
100 extern int write_files;
102 extern void core_file_command PARAMS ((char *filename, int from_tty));
104 extern void exec_file_attach PARAMS ((char *filename, int from_tty));
106 extern void exec_file_command PARAMS ((char *filename, int from_tty));
108 extern void validate_files PARAMS ((void));
110 extern CORE_ADDR register_addr PARAMS ((int regno, CORE_ADDR blockend));
112 extern void registers_fetched PARAMS ((void));
114 #if !defined (KERNEL_U_ADDR)
115 extern CORE_ADDR kernel_u_addr;
116 #define KERNEL_U_ADDR kernel_u_addr
119 /* The target vector for core files. */
121 extern struct target_ops core_ops;
123 /* The current default bfd target. */
125 extern char *gnutarget;
127 extern void set_gnutarget PARAMS ((char *));
129 /* Structure to keep track of core register reading functions for
130 various core file types. */
134 /* BFD flavour that we handle. Note that bfd_target_unknown_flavour matches
135 anything, and if there is no better match, this function will be called
138 enum bfd_flavour core_flavour;
140 /* Extract the register values out of the core file and store them where
141 `read_register' will find them.
143 CORE_REG_SECT points to the register values themselves, read into
146 CORE_REG_SIZE is the size of that area.
148 WHICH says which set of registers we are handling (0 = int, 2 = float on
149 machines where they are discontiguous).
151 REG_ADDR is the offset from u.u_ar0 to the register values relative to
152 core_reg_sect. This is used with old-fashioned core files to locate the
153 registers in a large upage-plus-stack ".reg" section. Original upage
154 address X is at location core_reg_sect+x+reg_addr. */
156 void (*core_read_registers) PARAMS ((char *core_reg_sect, unsigned core_reg_size,
157 int which, CORE_ADDR reg_addr));
159 /* Finds the next struct core_fns. They are allocated and initialized
160 in whatever module implements the functions pointed to; an
161 initializer calls add_core_fns to add them to the global chain. */
163 struct core_fns *next;
167 extern void add_core_fns PARAMS ((struct core_fns *cf));
169 #endif /* !defined (GDBCORE_H) */