1 /* Machine independent variables that describe the core file under GDB. 2 Copyright 1986, 1987, 1989, 1990, 1992, 1995 Free Software Foundation, Inc. 3 4 This file is part of GDB. 5 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. 10 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. 15 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. */ 19 20 /* Interface routines for core, executable, etc. */ 21 22 #if !defined (GDBCORE_H) 23 #define GDBCORE_H 1 24 25 #include "bfd.h" 26 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. */ 30 31 extern char *get_exec_file PARAMS ((int err)); 32 33 /* Nonzero if there is a core file. */ 34 35 extern int have_core_file_p PARAMS ((void)); 36 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. */ 41 42 extern int read_memory_nobpt PARAMS ((CORE_ADDR memaddr, char *myaddr, 43 unsigned len)); 44 45 /* Report a memory error with error(). */ 46 47 extern void memory_error PARAMS ((int status, CORE_ADDR memaddr)); 48 49 /* Like target_read_memory, but report an error if can't read. */ 50 51 extern void read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len)); 52 53 /* Read an integer from debugged memory, given address and number of 54 bytes. */ 55 56 extern LONGEST read_memory_integer PARAMS ((CORE_ADDR memaddr, int len)); 57 58 /* Read an unsigned integer from debugged memory, given address and 59 number of bytes. */ 60 61 extern unsigned LONGEST read_memory_unsigned_integer PARAMS ((CORE_ADDR memaddr, int len)); 62 63 /* This takes a char *, not void *. This is probably right, because 64 passing in an int * or whatever is wrong with respect to 65 byteswapping, alignment, different sizes for host vs. target types, 66 etc. */ 67 68 extern void write_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len)); 69 70 extern void generic_search PARAMS ((int len, char *data, char *mask, 71 CORE_ADDR startaddr, int increment, 72 CORE_ADDR lorange, CORE_ADDR hirange, 73 CORE_ADDR *addr_found, char *data_found)); 74 75 /* Hook for `exec_file_command' command to call. */ 76 77 extern void (*exec_file_display_hook) PARAMS ((char *filename)); 78 79 extern void specify_exec_file_hook PARAMS ((void (*hook) (char *filename))); 80 81 /* Binary File Diddlers for the exec and core files */ 82 83 extern bfd *core_bfd; 84 extern bfd *exec_bfd; 85 86 /* Whether to open exec and core files read-only or read-write. */ 87 88 extern int write_files; 89 90 extern void core_file_command PARAMS ((char *filename, int from_tty)); 91 92 extern void exec_file_command PARAMS ((char *filename, int from_tty)); 93 94 extern void validate_files PARAMS ((void)); 95 96 extern CORE_ADDR register_addr PARAMS ((int regno, CORE_ADDR blockend)); 97 98 extern void registers_fetched PARAMS ((void)); 99 100 #if !defined (KERNEL_U_ADDR) 101 extern CORE_ADDR kernel_u_addr; 102 #define KERNEL_U_ADDR kernel_u_addr 103 #endif 104 105 /* The target vector for core files. */ 106 107 extern struct target_ops core_ops; 108 109 /* The current default bfd target. */ 110 111 extern char *gnutarget; 112 113 extern void set_gnutarget PARAMS ((char *)); 114 115 /* Structure to keep track of core register reading functions for 116 various core file types. */ 117 118 struct core_fns { 119 120 /* BFD flavour that we handle. Note that bfd_target_unknown_flavour matches 121 anything, and if there is no better match, this function will be called 122 as the default. */ 123 124 enum bfd_flavour core_flavour; 125 126 /* Extract the register values out of the core file and store them where 127 `read_register' will find them. 128 129 CORE_REG_SECT points to the register values themselves, read into 130 memory. 131 132 CORE_REG_SIZE is the size of that area. 133 134 WHICH says which set of registers we are handling (0 = int, 2 = float on 135 machines where they are discontiguous). 136 137 REG_ADDR is the offset from u.u_ar0 to the register values relative to 138 core_reg_sect. This is used with old-fashioned core files to locate the 139 registers in a large upage-plus-stack ".reg" section. Original upage 140 address X is at location core_reg_sect+x+reg_addr. */ 141 142 void (*core_read_registers) PARAMS ((char *core_reg_sect, unsigned core_reg_size, 143 int which, CORE_ADDR reg_addr)); 144 145 /* Finds the next struct core_fns. They are allocated and initialized 146 in whatever module implements the functions pointed to; an 147 initializer calls add_core_fns to add them to the global chain. */ 148 149 struct core_fns *next; 150 151 }; 152 153 extern void add_core_fns PARAMS ((struct core_fns *cf)); 154 155 #endif /* !defined (GDBCORE_H) */ 156