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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [gdbcore.h] - Blame information for rev 105

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1 104 markom
/* Machine independent variables that describe the core file under GDB.
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   Copyright 1986, 1987, 1989, 1990, 1992, 1995 Free Software Foundation, Inc.
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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/* Interface routines for core, executable, etc.  */
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#if !defined (GDBCORE_H)
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#define GDBCORE_H 1
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#include "bfd.h"
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/* Return the name of the executable file as a string.
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   ERR nonzero means get error if there is none specified;
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   otherwise return 0 in that case.  */
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extern char *get_exec_file PARAMS ((int err));
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/* Nonzero if there is a core file.  */
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extern int have_core_file_p PARAMS ((void));
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/* Read "memory data" from whatever target or inferior we have.
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   Returns zero if successful, errno value if not.  EIO is used for
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   address out of bounds.  If breakpoints are inserted, returns shadow
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   contents, not the breakpoints themselves.  From breakpoint.c.  */
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extern int read_memory_nobpt PARAMS ((CORE_ADDR memaddr, char *myaddr,
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                                      unsigned len));
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/* Report a memory error with error().  */
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extern void memory_error PARAMS ((int status, CORE_ADDR memaddr));
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/* Like target_read_memory, but report an error if can't read.  */
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extern void read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
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extern void read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr,
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                                         int len, asection * bfd_section));
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/* Read an integer from debugged memory, given address and number of
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   bytes.  */
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extern LONGEST read_memory_integer PARAMS ((CORE_ADDR memaddr, int len));
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/* Read an unsigned integer from debugged memory, given address and
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   number of bytes.  */
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extern ULONGEST read_memory_unsigned_integer PARAMS ((CORE_ADDR memaddr, int len));
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/* Read a null-terminated string from the debuggee's memory, given address,
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 * a buffer into which to place the string, and the maximum available space */
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extern void read_memory_string PARAMS ((CORE_ADDR, char *, int));
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/* This takes a char *, not void *.  This is probably right, because
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   passing in an int * or whatever is wrong with respect to
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   byteswapping, alignment, different sizes for host vs. target types,
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   etc.  */
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extern void write_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
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extern void generic_search PARAMS ((int len, char *data, char *mask,
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                                    CORE_ADDR startaddr, int increment,
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                                    CORE_ADDR lorange, CORE_ADDR hirange,
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                                 CORE_ADDR * addr_found, char *data_found));
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/* Hook for `exec_file_command' command to call.  */
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extern void (*exec_file_display_hook) PARAMS ((char *filename));
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/* Hook for "file_command", which is more useful than above
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   (because it is invoked AFTER symbols are read, not before) */
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extern void (*file_changed_hook) PARAMS ((char *filename));
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extern void specify_exec_file_hook PARAMS ((void (*hook) (char *filename)));
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/* Binary File Diddlers for the exec and core files */
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extern bfd *core_bfd;
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extern bfd *exec_bfd;
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/* Whether to open exec and core files read-only or read-write.  */
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extern int write_files;
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extern void core_file_command PARAMS ((char *filename, int from_tty));
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extern void exec_file_attach PARAMS ((char *filename, int from_tty));
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extern void exec_file_command PARAMS ((char *filename, int from_tty));
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extern void validate_files PARAMS ((void));
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extern CORE_ADDR register_addr PARAMS ((int regno, CORE_ADDR blockend));
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extern void registers_fetched PARAMS ((void));
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#if !defined (KERNEL_U_ADDR)
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extern CORE_ADDR kernel_u_addr;
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#define KERNEL_U_ADDR kernel_u_addr
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#endif
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/* The target vector for core files. */
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extern struct target_ops core_ops;
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/* The current default bfd target.  */
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extern char *gnutarget;
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extern void set_gnutarget PARAMS ((char *));
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/* Structure to keep track of core register reading functions for
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   various core file types.  */
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struct core_fns
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  {
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    /* BFD flavour that a core file handler is prepared to read.  This
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       can be used by the handler's core tasting function as a first
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       level filter to reject BFD's that don't have the right
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       flavour. */
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    enum bfd_flavour core_flavour;
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    /* Core file handler function to call to recognize corefile
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       formats that BFD rejects.  Some core file format just don't fit
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       into the BFD model, or may require other resources to identify
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       them, that simply aren't available to BFD (such as symbols from
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       another file).  Returns nonzero if the handler recognizes the
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       format, zero otherwise. */
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    int (*check_format) PARAMS ((bfd *));
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    /* Core file handler function to call to ask if it can handle a
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       given core file format or not.  Returns zero if it can't,
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       nonzero otherwise. */
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    int (*core_sniffer) PARAMS ((struct core_fns *, bfd *));
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    /* Extract the register values out of the core file and store them where
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       `read_register' will find them.
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       CORE_REG_SECT points to the register values themselves, read into
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       memory.
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       CORE_REG_SIZE is the size of that area.
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       WHICH says which set of registers we are handling:
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         2 --- floating-point registers, on machines where they are
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               discontiguous
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         3 --- extended floating-point registers, on machines where
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               these are present in yet a third area.  (GNU/Linux uses
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               this to get at the SSE registers.)
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       REG_ADDR is the offset from u.u_ar0 to the register values relative to
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       core_reg_sect.  This is used with old-fashioned core files to locate the
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       registers in a large upage-plus-stack ".reg" section.  Original upage
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       address X is at location core_reg_sect+x+reg_addr. */
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    void (*core_read_registers) PARAMS ((char *core_reg_sect,
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                                         unsigned core_reg_size,
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                                         int which, CORE_ADDR reg_addr));
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    /* Finds the next struct core_fns.  They are allocated and initialized
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       in whatever module implements the functions pointed to; an
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       initializer calls add_core_fns to add them to the global chain.  */
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    struct core_fns *next;
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  };
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extern void add_core_fns PARAMS ((struct core_fns * cf));
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extern int default_core_sniffer PARAMS ((struct core_fns *cf, bfd *abfd));
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extern int default_check_format PARAMS ((bfd *abfd));
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#endif /* !defined (GDBCORE_H) */

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