/* Machine independent variables that describe the core file under GDB.
- Copyright (C) 1986, 1987, 1989, 1990 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1986-2017 Free Software Foundation, Inc.
-GDB 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 1, or (at your option)
-any later version.
+ This file is part of GDB.
-GDB 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.
+ 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 3 of the License, or
+ (at your option) any later version.
-You should have received a copy of the GNU General Public License
-along with GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Interface routines for core, executable, etc. */
-#include "bfd.h" /* Binary File Description */
+#if !defined (GDBCORE_H)
+#define GDBCORE_H 1
+
+struct type;
+struct regcache;
+
+#include "bfd.h"
+#include "exec.h"
+#include "target.h"
/* 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. */
-char *get_exec_file ();
+
+extern char *get_exec_file (int err);
/* Nonzero if there is a core file. */
-int have_core_file_p ();
-/* 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. */
-int read_memory_nobpt ();
+extern int have_core_file_p (void);
/* Report a memory error with error(). */
-void memory_error ();
+extern void memory_error (enum target_xfer_status status, CORE_ADDR memaddr);
+
+/* The string 'memory_error' would use as exception message. Space
+ for the result is malloc'd, caller must free. */
+
+extern char *memory_error_message (enum target_xfer_status err,
+ struct gdbarch *gdbarch, CORE_ADDR memaddr);
/* Like target_read_memory, but report an error if can't read. */
-void read_memory ();
-/* Read an integer from debugged memory, given address and number of bytes. */
-long read_memory_integer ();
+extern void read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
+/* Like target_read_stack, but report an error if can't read. */
+
+extern void read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
+/* Like target_read_code, but report an error if can't read. */
+
+extern void read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
+/* Read an integer from debugged memory, given address and number of
+ bytes. */
+
+extern LONGEST read_memory_integer (CORE_ADDR memaddr,
+ int len, enum bfd_endian byte_order);
+extern int safe_read_memory_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order,
+ LONGEST *return_value);
+
+/* Read an unsigned integer from debugged memory, given address and
+ number of bytes. */
+
+extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr,
+ int len,
+ enum bfd_endian byte_order);
+extern int safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order,
+ ULONGEST *return_value);
+
+/* Read an integer from debugged code memory, given address,
+ number of bytes, and byte order for code. */
+
+extern LONGEST read_code_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order);
-void write_memory (
-#ifdef __STDC__
- CORE_ADDR, char *, int
-#endif
- );
+/* Read an unsigned integer from debugged code memory, given address,
+ number of bytes, and byte order for code. */
+extern ULONGEST read_code_unsigned_integer (CORE_ADDR memaddr,
+ int len,
+ enum bfd_endian byte_order);
+
+/* 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 (CORE_ADDR, char *, int);
+
+/* Read the pointer of type TYPE at ADDR, and return the address it
+ represents. */
+
+CORE_ADDR read_memory_typed_address (CORE_ADDR addr, struct type *type);
+
+/* Same as target_write_memory, but report an error if can't
+ write. */
+
+extern void write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
+ ssize_t len);
+
+/* Same as write_memory, but notify 'memory_changed' observers. */
+
+extern void write_memory_with_notification (CORE_ADDR memaddr,
+ const bfd_byte *myaddr,
+ ssize_t len);
+
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+extern void write_memory_unsigned_integer (CORE_ADDR addr, int len,
+ enum bfd_endian byte_order,
+ ULONGEST value);
+
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+extern void write_memory_signed_integer (CORE_ADDR addr, int len,
+ enum bfd_endian byte_order,
+ LONGEST value);
+\f
/* Hook for `exec_file_command' command to call. */
-extern void (*exec_file_display_hook) ();
-
-/* Binary File Diddlers for the exec and core files */
+extern void (*deprecated_exec_file_display_hook) (const char *filename);
+
+/* Hook for "file_command", which is more useful than above
+ (because it is invoked AFTER symbols are read, not before). */
+
+extern void (*deprecated_file_changed_hook) (char *filename);
+
+extern void specify_exec_file_hook (void (*hook) (const char *filename));
+
+/* Binary File Diddler for the core file. */
+
extern bfd *core_bfd;
-extern bfd *exec_bfd;
-
-void core_file_command ();
-void exec_file_command ();
-void validate_files ();
-unsigned int register_addr ();
-int xfer_core_file ();
-void fetch_core_registers ();
-void registers_fetched ();
-
-#if !defined (KERNEL_U_ADDR)
-extern CORE_ADDR kernel_u_addr;
-#define KERNEL_U_ADDR kernel_u_addr
-#endif
-
-/* Struct section_table maps address ranges to file sections. It is
- mostly used with BFD files, but can be used without (e.g. for handling
- raw disks, or files not in formats handled by BFD). */
-
-struct section_table {
- CORE_ADDR addr; /* Lowest address in section */
- CORE_ADDR endaddr; /* 1+highest address in section */
- sec_ptr sec_ptr; /* BFD section pointer */
-};
-
-/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
- Returns 0 if OK, 1 on error. */
-
-int build_section_table ();
+
+extern struct target_ops *core_target;
+
+/* Whether to open exec and core files read-only or read-write. */
+
+extern int write_files;
+
+extern void core_file_command (char *filename, int from_tty);
+
+extern void exec_file_attach (const char *filename, int from_tty);
+
+/* If the filename of the main executable is unknown, attempt to
+ determine it. If a filename is determined, proceed as though
+ it was just specified with the "file" command. Do nothing if
+ the filename of the main executable is already known.
+ DEFER_BP_RESET uses SYMFILE_DEFER_BP_RESET for the main symbol file. */
+
+extern void exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty);
+
+extern void exec_file_clear (int from_tty);
+
+extern void validate_files (void);
+
+/* The current default bfd target. */
+
+extern char *gnutarget;
+
+extern void set_gnutarget (const char *);
+
+/* Structure to keep track of core register reading functions for
+ various core file types. */
+
+struct core_fns
+ {
+
+ /* BFD flavour that a core file handler is prepared to read. This
+ can be used by the handler's core tasting function as a first
+ level filter to reject BFD's that don't have the right
+ flavour. */
+
+ enum bfd_flavour core_flavour;
+
+ /* Core file handler function to call to recognize corefile
+ formats that BFD rejects. Some core file format just don't fit
+ into the BFD model, or may require other resources to identify
+ them, that simply aren't available to BFD (such as symbols from
+ another file). Returns nonzero if the handler recognizes the
+ format, zero otherwise. */
+
+ int (*check_format) (bfd *);
+
+ /* Core file handler function to call to ask if it can handle a
+ given core file format or not. Returns zero if it can't,
+ nonzero otherwise. */
+
+ int (*core_sniffer) (struct core_fns *, bfd *);
+
+ /* Extract the register values out of the core file and supply them
+ into REGCACHE.
+
+ 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 --- integer registers
+ 2 --- floating-point registers, on machines where they are
+ discontiguous
+ 3 --- extended floating-point registers, on machines where
+ these are present in yet a third area. (GNU/Linux uses
+ this to get at the SSE registers.)
+
+ 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) (struct regcache *regcache,
+ 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 deprecated_add_core_fns to add them to
+ the global chain. */
+
+ struct core_fns *next;
+
+ };
+
+/* NOTE: cagney/2004-04-05: Replaced by "regset.h" and
+ regset_from_core_section(). */
+extern void deprecated_add_core_fns (struct core_fns *cf);
+extern int default_core_sniffer (struct core_fns *cf, bfd * abfd);
+extern int default_check_format (bfd * abfd);
+
+#endif /* !defined (GDBCORE_H) */
projects / binutils.git / blobdiff