16a0f3e75e
* corefile.c (do_captured_read_memory_integer,
safe_read_memory_integer): New functions.
* gdbcore.h (safe_read_memory_integer): Export.
* arm-tdep.c (arm_scan_prologue): Use safe_read_memory_integer,
to read the frame value, to capture calls to error().
202 lines
6.9 KiB
C
202 lines
6.9 KiB
C
/* Machine independent variables that describe the core file under GDB.
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Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
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1997, 1998, 1999, 2000, 2001 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 (int err);
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/* Nonzero if there is a core file. */
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extern int have_core_file_p (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 (CORE_ADDR memaddr, char *myaddr, unsigned len);
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/* Report a memory error with error(). */
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extern void memory_error (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 (CORE_ADDR memaddr, char *myaddr, int len);
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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 (CORE_ADDR memaddr, int len);
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extern int safe_read_memory_integer (CORE_ADDR memaddr, int len, LONGEST *return_value);
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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 (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 (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 (CORE_ADDR memaddr, char *myaddr, int len);
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/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
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extern void write_memory_unsigned_integer (CORE_ADDR addr, int len,
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ULONGEST value);
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/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
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extern void write_memory_signed_integer (CORE_ADDR addr, int len,
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LONGEST value);
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extern void generic_search (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) (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) (char *filename);
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extern void specify_exec_file_hook (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 (char *filename, int from_tty);
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extern void exec_open (char *filename, int from_tty);
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extern void exec_file_attach (char *filename, int from_tty);
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extern void exec_file_clear (int from_tty);
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extern void validate_files (void);
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extern CORE_ADDR register_addr (int regno, CORE_ADDR blockend);
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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 (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) (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) (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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0 --- integer registers
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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) (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 (struct core_fns *cf);
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extern int default_core_sniffer (struct core_fns *cf, bfd * abfd);
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extern int default_check_format (bfd * abfd);
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#endif /* !defined (GDBCORE_H) */
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