/* Interface between GDB and target environments, including files and processes
- Copyright 1990, 1991 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
This file is part of GDB.
-GDB is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-GDB is distributed in the hope that it will be useful,
+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 GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (TARGET_H)
+#define TARGET_H
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
it goes into the file stratum, which is always below the process
stratum. */
+#include "bfd.h"
+
enum strata {
dummy_stratum, /* The lowest of the low */
file_stratum, /* Executable files, etc */
core_stratum, /* Core dump files */
- process_stratum, /* Executing processes */
+ process_stratum /* Executing processes */
};
-struct target_ops {
- char *to_shortname; /* Name this target type */
- char *to_longname; /* Name for printing */
- /* Documentation. Does not include trailing newline, and
- starts with a one-line description (probably similar to
- to_longname). */
- char *to_doc;
-#ifdef __STDC__
- void (*to_open) (char *name, int from_tty);
- void (*to_close) (int quitting);
- void (*to_attach) (char *name, int from_tty);
- void (*to_detach) (char *args, int from_tty);
- void (*to_resume) (int step, int siggnal);
- int (*to_wait) (int *status);
- int (*to_fetch_registers) (int regno);
- int (*to_store_registers) (int regno);
- void (*to_prepare_to_store) ();
- void (*to_convert_to_virtual) (int regnum, char *from, char *to);
- void (*to_convert_from_virtual) (int regnum, char *from, char *to);
- int (*to_xfer_memory) (CORE_ADDR memaddr, char *myaddr, int len, int w);
- void (*to_files_info) ();
- int (*to_insert_breakpoint) (CORE_ADDR addr, char *save);
- int (*to_remove_breakpoint) (CORE_ADDR addr, char *save);
- void (*to_terminal_init) ();
- void (*to_terminal_inferior) ();
- void (*to_terminal_ours_for_output) ();
- void (*to_terminal_ours) ();
- void (*to_terminal_info) (char *arg, int from_tty);
- void (*to_kill) (char *arg, int from_tty);
- void (*to_load) (char *arg, int from_tty);
- void (*to_add_syms) (char *arg, int from_tty);
-struct value *(*to_call_function) (struct value *function,
- int nargs, struct value **args);
- int (*to_lookup_symbol) (char *name, CORE_ADDR *addrp);
- void (*to_create_inferior) (char *exec, char *args, char **env);
- void (*to_mourn_inferior) ();
- enum strata to_stratum;
-struct target_ops *to_next;
- int to_has_all_memory;
- int to_has_memory;
- int to_has_stack;
- int to_has_registers;
- int to_has_execution;
- int to_magic;
-/* Need sub-structure for target machine related rather than comm related? */
-#else /* STDC */
- void (*to_open) ();
- void (*to_close) ();
- void (*to_attach) ();
- void (*to_detach) ();
- void (*to_resume) ();
- int (*to_wait) ();
- int (*to_fetch_registers) ();
- int (*to_store_registers) ();
- void (*to_prepare_to_store) ();
- void (*to_convert_to_virtual) ();
- void (*to_convert_from_virtual) ();
- int (*to_xfer_memory) ();
- void (*to_files_info) ();
- int (*to_insert_breakpoint) ();
- int (*to_remove_breakpoint) ();
- void (*to_terminal_init) ();
- void (*to_terminal_inferior) ();
- void (*to_terminal_ours_for_output) ();
- void (*to_terminal_ours) ();
- void (*to_terminal_info) ();
- void (*to_kill) ();
- void (*to_load) ();
- void (*to_add_syms) ();
-struct value *(*to_call_function) ();
- int (*to_lookup_symbol) ();
- void (*to_create_inferior) ();
- void (*to_mourn_inferior) ();
- enum strata to_stratum;
-struct target_ops *to_next;
- int to_has_all_memory;
- int to_has_memory;
- int to_has_stack;
- int to_has_registers;
- int to_has_execution;
- int to_magic;
-/* Need sub-structure for target machine related rather than comm related? */
-#endif
+struct target_ops
+{
+ char *to_shortname; /* Name this target type */
+ char *to_longname; /* Name for printing */
+ char *to_doc; /* Documentation. Does not include trailing
+ newline, and starts with a one-line descrip-
+ tion (probably similar to to_longname). */
+ void (*to_open) PARAMS ((char *, int));
+ void (*to_close) PARAMS ((int));
+ void (*to_attach) PARAMS ((char *, int));
+ void (*to_detach) PARAMS ((char *, int));
+ void (*to_resume) PARAMS ((int, int));
+ int (*to_wait) PARAMS ((int *));
+ void (*to_fetch_registers) PARAMS ((int));
+ void (*to_store_registers) PARAMS ((int));
+ void (*to_prepare_to_store) PARAMS ((void));
+ void (*to_convert_to_virtual) PARAMS ((int, char *, char *));
+ void (*to_convert_from_virtual) PARAMS ((int, char *, char *));
+ int (*to_xfer_memory) PARAMS ((CORE_ADDR, char *, int, int,
+ struct target_ops *));
+ void (*to_files_info) PARAMS ((struct target_ops *));
+ int (*to_insert_breakpoint) PARAMS ((CORE_ADDR, char *));
+ int (*to_remove_breakpoint) PARAMS ((CORE_ADDR, char *));
+ void (*to_terminal_init) PARAMS ((void));
+ void (*to_terminal_inferior) PARAMS ((void));
+ void (*to_terminal_ours_for_output) PARAMS ((void));
+ void (*to_terminal_ours) PARAMS ((void));
+ void (*to_terminal_info) PARAMS ((char *, int));
+ void (*to_kill) PARAMS ((void));
+ void (*to_load) PARAMS ((char *, int));
+ int (*to_lookup_symbol) PARAMS ((char *, CORE_ADDR *));
+ void (*to_create_inferior) PARAMS ((char *, char *, char **));
+ void (*to_mourn_inferior) PARAMS ((void));
+ enum strata to_stratum;
+ struct target_ops
+ *to_next;
+ int to_has_all_memory;
+ int to_has_memory;
+ int to_has_stack;
+ int to_has_registers;
+ int to_has_execution;
+ struct section_table
+ *to_sections;
+ struct section_table
+ *to_sections_end;
+ int to_magic;
+ /* Need sub-structure for target machine related rather than comm related? */
};
/* Magic number for checking ops size. If a struct doesn't end with this
#define target_wait(status) \
(*current_target->to_wait) (status)
-/* Fetch register REGNO, or all regs if regno == -1. Result is 0
- for success, -1 for problems. */
+/* Fetch register REGNO, or all regs if regno == -1. No result. */
#define target_fetch_registers(regno) \
(*current_target->to_fetch_registers) (regno)
function which iterates across the various targets. Result is
0 for success, or an errno value. */
-#ifdef __STDC__
-/* Needs defs.h for CORE_ADDR */
-extern int target_read_memory(CORE_ADDR memaddr, char *myaddr, int len);
-extern int target_write_memory(CORE_ADDR memaddr, char *myaddr, int len);
-extern int target_xfer_memory(CORE_ADDR memaddr, char *myaddr, int len,
- int write);
-#else
-extern int target_read_memory();
-extern int target_write_memory();
-extern int target_xfer_memory();
-#endif
+extern int
+target_read_string PARAMS ((CORE_ADDR, char *, int));
+
+extern int
+target_read_memory PARAMS ((CORE_ADDR, char *, int));
+
+extern int
+target_write_memory PARAMS ((CORE_ADDR, char *, int));
+
+extern int
+xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+
+extern int
+child_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+
+extern int
+target_xfer_memory PARAMS ((CORE_ADDR, char *, int, int));
+
+/* From exec.c */
+
+extern void
+print_section_info PARAMS ((struct target_ops *, bfd *));
/* Print a line about the current target. */
#define target_files_info() \
- (*current_target->to_files_info) ()
+ (*current_target->to_files_info) (current_target)
/* Insert a breakpoint at address ADDR in the target machine.
SAVE is a pointer to memory allocated for saving the
/* Kill the inferior process. Make it go away. */
-#define target_kill(arg, from_tty) \
- (*current_target->to_kill) (arg, from_tty)
+#define target_kill() \
+ (*current_target->to_kill) ()
/* Load an executable file into the target process. This is expected to
not only bring new code into the target process, but also to update
#define target_load(arg, from_tty) \
(*current_target->to_load) (arg, from_tty)
-/* Add the symbols from an executable file into GDB's symbol table, as if
- the file had been loaded at a particular address (or set of addresses).
- This does not change any state in the target system, only in GDB. */
-
-#define target_add_syms(arg, from_tty) \
- (*current_target->to_add_syms) (arg, from_tty)
-
-/* Perform a function call in the inferior.
- ARGS is a vector of values of arguments (NARGS of them).
- FUNCTION is a value, the function to be called.
- Returns a value representing what the function returned.
- May fail to return, if a breakpoint or signal is hit
- during the execution of the function. */
-
-#define target_call_function(function, nargs, args) \
- (*current_target->to_call_function) (function, nargs, args)
-
/* Look up a symbol in the target's symbol table. NAME is the symbol
name. ADDRP is a CORE_ADDR * pointing to where the value of the symbol
should be returned. The result is 0 if successful, nonzero if the
(current_target->to_has_registers)
/* Does the target have execution? Can we make it jump (through hoops),
- or pop its stack a few times, or set breakpoints? */
+ or pop its stack a few times? */
#define target_has_execution \
(current_target->to_has_execution)
pop_target: Remove the top thing on the stack of current targets. */
-#ifdef __STDC__
-void add_target (struct target_ops *);
-int push_target (struct target_ops *);
-int unpush_target (struct target_ops *);
-void target_preopen (int);
-void pop_target (void);
-#else
-void add_target ();
-int push_target ();
-int unpush_target ();
-void target_preopen ();
-void pop_target ();
-#endif
+extern void
+add_target PARAMS ((struct target_ops *));
+
+extern int
+push_target PARAMS ((struct target_ops *));
+
+extern int
+unpush_target PARAMS ((struct target_ops *));
+
+extern void
+target_preopen PARAMS ((int));
+
+extern void
+pop_target PARAMS ((void));
+
+/* 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 */
+ bfd *bfd; /* BFD file pointer */
+};
+
+/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
+ Returns 0 if OK, 1 on error. */
+
+extern int
+build_section_table PARAMS ((bfd *, struct section_table **,
+ struct section_table **));
+
+/* From inftarg.c */
+
+extern void
+host_convert_from_virtual PARAMS ((int, char *, char *));
+
+extern void
+host_convert_to_virtual PARAMS ((int, char *, char *));
+
+/* From mem-break.c */
+
+extern int
+memory_remove_breakpoint PARAMS ((CORE_ADDR, char *));
+
+extern int
+memory_insert_breakpoint PARAMS ((CORE_ADDR, char *));
+
+#endif /* !defined (TARGET_H) */
projects / deliverable / binutils-gdb.git / blobdiff