/* Machine independent variables that describe the core file under GDB.
- Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1989, 1990, 1992, 1995 Free Software Foundation, Inc.
-GDB is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY. No author or distributor accepts responsibility to anyone
-for the consequences of using it or for whether it serves any
-particular purpose or works at all, unless he says so in writing.
-Refer to the GDB General Public License for full details.
+This file is part of GDB.
-Everyone is granted permission to copy, modify and redistribute GDB,
-but only under the conditions described in the GDB General Public
-License. A copy of this license is supposed to have been given to you
-along with GDB so you can know your rights and responsibilities. It
-should be in a file named COPYING. Among other things, the copyright
-notice and this notice must be preserved on all copies.
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-In other words, go ahead and share GDB, but don't try to stop
-anyone else from sharing it farther. Help stamp out software hoarding!
-*/
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
-/* File names of core file and executable file. */
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-extern char *corefile;
-extern char *execfile;
+/* Interface routines for core, executable, etc. */
-/* Descriptors on which core file and executable file are open.
- Note that the execchan is closed when an inferior is created
- and reopened if the inferior dies or is killed. */
+#if !defined (GDBCORE_H)
+#define GDBCORE_H 1
-extern int corechan;
-extern int execchan;
+#include "bfd.h"
-/* Last modification time of executable file.
- Also used in source.c to compare against mtime of a source file. */
+/* Return the name of the executable file as a string.
+ ERR nonzero means get error if there is none specified;
+ otherwise return 0 in that case. */
-extern int exec_mtime;
+extern char *get_exec_file PARAMS ((int err));
-/* Virtual addresses of bounds of the two areas of memory in the core file. */
+/* Nonzero if there is a core file. */
-extern CORE_ADDR data_start;
-extern CORE_ADDR data_end;
-extern CORE_ADDR stack_start;
-extern CORE_ADDR stack_end;
+extern int have_core_file_p PARAMS ((void));
-/* Virtual addresses of bounds of two areas of memory in the exec file.
- Note that the data area in the exec file is used only when there is no core file. */
+/* Read "memory data" from whatever target or inferior we have.
+ Returns zero if successful, errno value if not. EIO is used for
+ address out of bounds. If breakpoints are inserted, returns shadow
+ contents, not the breakpoints themselves. From breakpoint.c. */
-extern CORE_ADDR text_start;
-extern CORE_ADDR text_end;
+extern int read_memory_nobpt PARAMS ((CORE_ADDR memaddr, char *myaddr,
+ unsigned len));
-extern CORE_ADDR exec_data_start;
-extern CORE_ADDR exec_data_end;
+/* Report a memory error with error(). */
-/* Address in executable file of start of text area data. */
+extern void memory_error PARAMS ((int status, CORE_ADDR memaddr));
-extern int text_offset;
+/* Like target_read_memory, but report an error if can't read. */
-/* Address in executable file of start of data area data. */
+extern void read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
-extern int exec_data_offset;
+extern void read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr,
+ int len, asection *bfd_section));
-/* Address in core file of start of data area data. */
+/* Read an integer from debugged memory, given address and number of
+ bytes. */
-extern int data_offset;
+extern LONGEST read_memory_integer PARAMS ((CORE_ADDR memaddr, int len));
-/* Address in core file of start of stack area data. */
+/* Read an unsigned integer from debugged memory, given address and
+ number of bytes. */
-extern int stack_offset;
+extern ULONGEST read_memory_unsigned_integer PARAMS ((CORE_ADDR memaddr, int len));
+
+/* Read a null-terminated string from the debuggee's memory, given address,
+ * a buffer into which to place the string, and the maximum available space */
+extern void read_memory_string PARAMS ((CORE_ADDR, char *, int));
+
+/* This takes a char *, not void *. This is probably right, because
+ passing in an int * or whatever is wrong with respect to
+ byteswapping, alignment, different sizes for host vs. target types,
+ etc. */
+
+extern void write_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
+
+extern void generic_search PARAMS ((int len, char *data, char *mask,
+ CORE_ADDR startaddr, int increment,
+ CORE_ADDR lorange, CORE_ADDR hirange,
+ CORE_ADDR *addr_found, char *data_found));
+\f
+/* Hook for `exec_file_command' command to call. */
+
+extern void (*exec_file_display_hook) PARAMS ((char *filename));
+
+/* Hook for "file_command", which is more useful than above
+ (because it is invoked AFTER symbols are read, not before) */
+
+extern void (*file_changed_hook) PARAMS ((char *filename));
+
+extern void specify_exec_file_hook PARAMS ((void (*hook) (char *filename)));
+
+/* Binary File Diddlers for the exec and core files */
+
+extern bfd *core_bfd;
+extern bfd *exec_bfd;
+
+/* Whether to open exec and core files read-only or read-write. */
+
+extern int write_files;
+
+extern void core_file_command PARAMS ((char *filename, int from_tty));
+
+extern void exec_file_attach PARAMS ((char *filename, int from_tty));
+
+extern void exec_file_command PARAMS ((char *filename, int from_tty));
+
+extern void validate_files PARAMS ((void));
+
+extern CORE_ADDR register_addr PARAMS ((int regno, CORE_ADDR blockend));
+
+extern void registers_fetched PARAMS ((void));
+
+#if !defined (KERNEL_U_ADDR)
+extern CORE_ADDR kernel_u_addr;
+#define KERNEL_U_ADDR kernel_u_addr
+#endif
+
+/* The target vector for core files. */
+
+extern struct target_ops core_ops;
+
+/* The current default bfd target. */
+
+extern char *gnutarget;
+
+extern void set_gnutarget PARAMS ((char *));
+
+/* Structure to keep track of core register reading functions for
+ various core file types. */
+
+struct core_fns {
+
+ /* BFD flavour that we handle. Note that bfd_target_unknown_flavour matches
+ anything, and if there is no better match, this function will be called
+ as the default. */
+
+ enum bfd_flavour core_flavour;
+
+ /* Extract the register values out of the core file and store them where
+ `read_register' will find them.
+
+ CORE_REG_SECT points to the register values themselves, read into
+ memory.
+
+ CORE_REG_SIZE is the size of that area.
+
+ WHICH says which set of registers we are handling (0 = int, 2 = float on
+ machines where they are discontiguous).
+
+ REG_ADDR is the offset from u.u_ar0 to the register values relative to
+ core_reg_sect. This is used with old-fashioned core files to locate the
+ registers in a large upage-plus-stack ".reg" section. Original upage
+ address X is at location core_reg_sect+x+reg_addr. */
+
+ void (*core_read_registers) PARAMS ((char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR reg_addr));
+
+ /* Finds the next struct core_fns. They are allocated and initialized
+ in whatever module implements the functions pointed to; an
+ initializer calls add_core_fns to add them to the global chain. */
+
+ struct core_fns *next;
+
+};
+
+extern void add_core_fns PARAMS ((struct core_fns *cf));
+
+#endif /* !defined (GDBCORE_H) */
projects / deliverable / binutils-gdb.git / blobdiff