1 /* Machine independent variables that describe the core file under GDB. 2 3 Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 4 1996, 1997, 1998, 1999, 2000, 2001, 2004 Free Software Foundation, 5 Inc. 6 7 This file is part of GDB. 8 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. 13 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. 18 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. */ 23 24 /* Interface routines for core, executable, etc. */ 25 26 #if !defined (GDBCORE_H) 27 #define GDBCORE_H 1 28 29 struct type; 30 31 #include "bfd.h" 32 33 /* Return the name of the executable file as a string. 34 ERR nonzero means get error if there is none specified; 35 otherwise return 0 in that case. */ 36 37 extern char *get_exec_file (int err); 38 39 /* Nonzero if there is a core file. */ 40 41 extern int have_core_file_p (void); 42 43 /* Read "memory data" from whatever target or inferior we have. 44 Returns zero if successful, errno value if not. EIO is used for 45 address out of bounds. If breakpoints are inserted, returns shadow 46 contents, not the breakpoints themselves. From breakpoint.c. */ 47 48 /* NOTE: cagney/2004-06-10: Code reading from a live inferior can use 49 the get_frame_memory methods, code reading from an exec can use the 50 target methods. */ 51 52 extern int deprecated_read_memory_nobpt (CORE_ADDR memaddr, char *myaddr, 53 unsigned len); 54 55 /* Report a memory error with error(). */ 56 57 extern void memory_error (int status, CORE_ADDR memaddr); 58 59 /* Like target_read_memory, but report an error if can't read. */ 60 61 extern void read_memory (CORE_ADDR memaddr, char *myaddr, int len); 62 63 /* Read an integer from debugged memory, given address and number of 64 bytes. */ 65 66 extern LONGEST read_memory_integer (CORE_ADDR memaddr, int len); 67 extern int safe_read_memory_integer (CORE_ADDR memaddr, int len, LONGEST *return_value); 68 69 /* Read an unsigned integer from debugged memory, given address and 70 number of bytes. */ 71 72 extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr, int len); 73 74 /* Read a null-terminated string from the debuggee's memory, given address, 75 * a buffer into which to place the string, and the maximum available space */ 76 77 extern void read_memory_string (CORE_ADDR, char *, int); 78 79 /* Read the pointer of type TYPE at ADDR, and return the address it 80 represents. */ 81 82 CORE_ADDR read_memory_typed_address (CORE_ADDR addr, struct type *type); 83 84 /* This takes a char *, not void *. This is probably right, because 85 passing in an int * or whatever is wrong with respect to 86 byteswapping, alignment, different sizes for host vs. target types, 87 etc. */ 88 89 extern void write_memory (CORE_ADDR memaddr, char *myaddr, int len); 90 91 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */ 92 extern void write_memory_unsigned_integer (CORE_ADDR addr, int len, 93 ULONGEST value); 94 95 /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */ 96 extern void write_memory_signed_integer (CORE_ADDR addr, int len, 97 LONGEST value); 98 99 extern void generic_search (int len, char *data, char *mask, 100 CORE_ADDR startaddr, int increment, 101 CORE_ADDR lorange, CORE_ADDR hirange, 102 CORE_ADDR * addr_found, char *data_found); 103 104 /* Hook for `exec_file_command' command to call. */ 105 106 extern void (*deprecated_exec_file_display_hook) (char *filename); 107 108 /* Hook for "file_command", which is more useful than above 109 (because it is invoked AFTER symbols are read, not before) */ 110 111 extern void (*deprecated_file_changed_hook) (char *filename); 112 113 extern void specify_exec_file_hook (void (*hook) (char *filename)); 114 115 /* Binary File Diddlers for the exec and core files */ 116 117 extern bfd *core_bfd; 118 extern bfd *exec_bfd; 119 120 /* Whether to open exec and core files read-only or read-write. */ 121 122 extern int write_files; 123 124 extern void core_file_command (char *filename, int from_tty); 125 126 extern void exec_open (char *filename, int from_tty); 127 128 extern void exec_file_attach (char *filename, int from_tty); 129 130 extern void exec_file_clear (int from_tty); 131 132 extern void validate_files (void); 133 134 extern CORE_ADDR register_addr (int regno, CORE_ADDR blockend); 135 136 #if !defined (KERNEL_U_ADDR) 137 extern CORE_ADDR kernel_u_addr; 138 #define KERNEL_U_ADDR kernel_u_addr 139 #endif 140 141 /* The target vector for core files. */ 142 143 extern struct target_ops core_ops; 144 145 /* The current default bfd target. */ 146 147 extern char *gnutarget; 148 149 extern void set_gnutarget (char *); 150 151 /* Structure to keep track of core register reading functions for 152 various core file types. */ 153 154 struct core_fns 155 { 156 157 /* BFD flavour that a core file handler is prepared to read. This 158 can be used by the handler's core tasting function as a first 159 level filter to reject BFD's that don't have the right 160 flavour. */ 161 162 enum bfd_flavour core_flavour; 163 164 /* Core file handler function to call to recognize corefile 165 formats that BFD rejects. Some core file format just don't fit 166 into the BFD model, or may require other resources to identify 167 them, that simply aren't available to BFD (such as symbols from 168 another file). Returns nonzero if the handler recognizes the 169 format, zero otherwise. */ 170 171 int (*check_format) (bfd *); 172 173 /* Core file handler function to call to ask if it can handle a 174 given core file format or not. Returns zero if it can't, 175 nonzero otherwise. */ 176 177 int (*core_sniffer) (struct core_fns *, bfd *); 178 179 /* Extract the register values out of the core file and store them where 180 `read_register' will find them. 181 182 CORE_REG_SECT points to the register values themselves, read into 183 memory. 184 185 CORE_REG_SIZE is the size of that area. 186 187 WHICH says which set of registers we are handling: 188 0 --- integer registers 189 2 --- floating-point registers, on machines where they are 190 discontiguous 191 3 --- extended floating-point registers, on machines where 192 these are present in yet a third area. (GNU/Linux uses 193 this to get at the SSE registers.) 194 195 REG_ADDR is the offset from u.u_ar0 to the register values relative to 196 core_reg_sect. This is used with old-fashioned core files to locate the 197 registers in a large upage-plus-stack ".reg" section. Original upage 198 address X is at location core_reg_sect+x+reg_addr. */ 199 200 void (*core_read_registers) (char *core_reg_sect, 201 unsigned core_reg_size, 202 int which, CORE_ADDR reg_addr); 203 204 /* Finds the next struct core_fns. They are allocated and 205 initialized in whatever module implements the functions pointed 206 to; an initializer calls deprecated_add_core_fns to add them to 207 the global chain. */ 208 209 struct core_fns *next; 210 211 }; 212 213 /* NOTE: cagney/2004-04-05: Replaced by "regset.h" and 214 regset_from_core_section(). */ 215 extern void deprecated_add_core_fns (struct core_fns *cf); 216 extern int default_core_sniffer (struct core_fns *cf, bfd * abfd); 217 extern int default_check_format (bfd * abfd); 218 219 #endif /* !defined (GDBCORE_H) */ 220