/* Definitions for dealing with stack frames, for GDB, the GNU debugger.
- Copyright 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1986, 1989, 1991, 1992, 1999, 2000 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-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.
+ 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.
-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.
+ 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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. */
#if !defined (FRAME_H)
#define FRAME_H 1
/* Describe the saved registers of a frame. */
+#if defined (EXTRA_FRAME_INFO) || defined (FRAME_FIND_SAVED_REGS)
+/* XXXX - deprecated */
struct frame_saved_regs
{
+ /* For each register R (except the SP), regs[R] is the address at
+ which it was saved on entry to the frame, or zero if it was not
+ saved on entry to this frame. This includes special registers
+ such as pc and fp saved in special ways in the stack frame.
- /* For each register, address of where it was saved on entry to
- the frame, or zero if it was not saved on entry to this frame.
- This includes special registers such as pc and fp saved in
- special ways in the stack frame. The SP_REGNUM is even more
- special, the address here is the sp for the next frame, not the
- address where the sp was saved. */
+ regs[SP_REGNUM] is different. It holds the actual SP, not the
+ address at which it was saved. */
CORE_ADDR regs[NUM_REGS];
};
+#endif
/* We keep a cache of stack frames, each of which is a "struct
frame_info". The innermost one gets allocated (in
wait_for_inferior) each time the inferior stops; current_frame
points to it. Additional frames get allocated (in
- get_prev_frame_info) as needed, and are chained through the next
+ get_prev_frame) as needed, and are chained through the next
and prev fields. Any time that the frame cache becomes invalid
(most notably when we execute something, but also if we change how
we interpret the frames (e.g. "set heuristic-fence-post" in
Set by machine-dependent code. On some machines, if
the machine-dependent code fails to check for this, the backtrace
will look relatively normal. For example, on the i386
- #3 0x158728 in sighold ()
+ #3 0x158728 in sighold ()
On other machines (e.g. rs6000), the machine-dependent code better
set this to prevent us from trying to print it like a normal frame. */
int signal_handler_caller;
+ /* For each register, address of where it was saved on entry to
+ the frame, or zero if it was not saved on entry to this frame.
+ This includes special registers such as pc and fp saved in
+ special ways in the stack frame. The SP_REGNUM is even more
+ special, the address here is the sp for the next frame, not the
+ address where the sp was saved. */
+ /* Allocated by frame_saved_regs_zalloc () which is called /
+ initialized by FRAME_INIT_SAVED_REGS(). */
+ CORE_ADDR *saved_regs; /*NUM_REGS */
+
+#ifdef EXTRA_FRAME_INFO
+ /* XXXX - deprecated */
/* Anything extra for this structure that may have been defined
in the machine dependent files. */
-#ifdef EXTRA_FRAME_INFO
- EXTRA_FRAME_INFO
+ EXTRA_FRAME_INFO
#endif
- /* We should probably also store a "struct frame_saved_regs" here.
- This is already done by some machines (e.g. config/m88k/tm-m88k.h)
- but there is no reason it couldn't be general. */
+ /* Anything extra for this structure that may have been defined
+ in the machine dependent files. */
+ /* Allocated by frame_obstack_alloc () which is called /
+ initialized by INIT_EXTRA_FRAME_INFO */
+ struct frame_extra_info *extra_info;
/* Pointers to the next and previous frame_info's in the frame cache. */
- struct frame_info *next, *prev;
+ struct frame_info *next, *prev;
};
-/* Dummy frame. This saves the processor state just prior to setting up the
- inferior function call. On most targets, the registers are saved on the
- target stack, but that really slows down function calls. */
+/* Values for the source flag to be used in print_frame_info_base(). */
+enum print_what
+ {
+ /* Print only the source line, like in stepi. */
+ SRC_LINE = -1,
+ /* Print only the location, i.e. level, address (sometimes)
+ function, args, file, line, line num. */
+ LOCATION,
+ /* Print both of the above. */
+ SRC_AND_LOC,
+ /* Print location only, but always include the address. */
+ LOC_AND_ADDRESS
+ };
-struct dummy_frame
-{
- struct dummy_frame *next;
+/* Allocate additional space for appendices to a struct frame_info. */
- CORE_ADDR pc;
- CORE_ADDR fp;
- CORE_ADDR sp;
- char regs[REGISTER_BYTES];
-};
+#ifndef SIZEOF_FRAME_SAVED_REGS
+#define SIZEOF_FRAME_SAVED_REGS (sizeof (CORE_ADDR) * (NUM_REGS))
+#endif
+extern void *frame_obstack_alloc PARAMS ((unsigned long size));
+extern void frame_saved_regs_zalloc PARAMS ((struct frame_info *));
/* Return the frame address from FR. Except in the machine-dependent
*FRAME* macros, a frame address has no defined meaning other than
is the outermost one and has no caller.
If a particular target needs a different definition, then it can override
- the definition here by providing one in the tm file. */
+ the definition here by providing one in the tm file.
-#if !defined (FRAME_CHAIN_VALID)
+ XXXX - both default and alternate frame_chain_valid functions are
+ deprecated. New code should use dummy frames and one of the
+ generic functions. */
-#if defined (FRAME_CHAIN_VALID_ALTERNATE)
+extern int file_frame_chain_valid (CORE_ADDR, struct frame_info *);
+extern int func_frame_chain_valid (CORE_ADDR, struct frame_info *);
+extern int nonnull_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
+extern int generic_file_frame_chain_valid (CORE_ADDR, struct frame_info *);
+extern int generic_func_frame_chain_valid (CORE_ADDR, struct frame_info *);
+extern void generic_save_dummy_frame_tos PARAMS ((CORE_ADDR sp));
+#if !defined (FRAME_CHAIN_VALID)
+#if !defined (FRAME_CHAIN_VALID_ALTERNATE)
+#define FRAME_CHAIN_VALID(chain, thisframe) file_frame_chain_valid (chain, thisframe)
+#else
/* Use the alternate method of avoiding running up off the end of the frame
chain or following frames back into the startup code. See the comments
in objfiles.h. */
-
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- ((chain) != 0 \
- && !inside_main_func ((thisframe) -> pc) \
- && !inside_entry_func ((thisframe) -> pc))
-
-#else
-
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- ((chain) != 0 \
- && !inside_entry_file (FRAME_SAVED_PC (thisframe)))
-
-#endif /* FRAME_CHAIN_VALID_ALTERNATE */
-
-#endif /* FRAME_CHAIN_VALID */
+#define FRAME_CHAIN_VALID(chain, thisframe) func_frame_chain_valid (chain,thisframe)
+#endif /* FRAME_CHAIN_VALID_ALTERNATE */
+#endif /* FRAME_CHAIN_VALID */
/* The stack frame that the user has specified for commands to act on.
Note that one cannot assume this is the address of valid data. */
extern int selected_frame_level;
-extern struct frame_info *get_prev_frame_info PARAMS ((struct frame_info *));
-
extern struct frame_info *create_new_frame PARAMS ((CORE_ADDR, CORE_ADDR));
extern void flush_cached_frames PARAMS ((void));
extern void reinit_frame_cache PARAMS ((void));
+
+#ifdef FRAME_FIND_SAVED_REGS
+/* XXX - deprecated */
+#define FRAME_INIT_SAVED_REGS(FI) get_frame_saved_regs (FI, NULL)
extern void get_frame_saved_regs PARAMS ((struct frame_info *,
struct frame_saved_regs *));
+#endif
extern void set_current_frame PARAMS ((struct frame_info *));
extern CORE_ADDR get_pc_function_start PARAMS ((CORE_ADDR));
-extern struct block * block_for_pc PARAMS ((CORE_ADDR));
+extern struct block *block_for_pc PARAMS ((CORE_ADDR));
-extern struct block * block_for_pc_sect PARAMS ((CORE_ADDR, asection *));
+extern struct block *block_for_pc_sect PARAMS ((CORE_ADDR, asection *));
extern int frameless_look_for_prologue PARAMS ((struct frame_info *));
extern void print_frame_args PARAMS ((struct symbol *, struct frame_info *,
- int, GDB_FILE *));
+ int, struct ui_file *));
+
+extern struct frame_info *find_relative_frame PARAMS ((struct frame_info *, int *));
-extern struct frame_info *find_relative_frame PARAMS ((struct frame_info *, int*));
+extern void show_and_print_stack_frame PARAMS ((struct frame_info * fi, int level, int source));
extern void print_stack_frame PARAMS ((struct frame_info *, int, int));
+extern void print_only_stack_frame PARAMS ((struct frame_info *, int, int));
+
+extern void show_stack_frame PARAMS ((struct frame_info *));
+
extern void select_frame PARAMS ((struct frame_info *, int));
extern void record_selected_frame PARAMS ((CORE_ADDR *, int *));
+extern void select_and_print_frame PARAMS ((struct frame_info *, int));
+
extern void print_frame_info PARAMS ((struct frame_info *, int, int, int));
+extern void show_frame_info PARAMS ((struct frame_info *, int, int, int));
+
extern CORE_ADDR find_saved_register PARAMS ((struct frame_info *, int));
extern struct frame_info *block_innermost_frame PARAMS ((struct block *));
extern CORE_ADDR sigtramp_saved_pc PARAMS ((struct frame_info *));
-extern int generic_frame_chain_valid PARAMS ((CORE_ADDR,
- struct frame_info *));
-extern CORE_ADDR generic_read_register_dummy PARAMS ((CORE_ADDR pc,
- CORE_ADDR fp,
+extern CORE_ADDR generic_read_register_dummy PARAMS ((CORE_ADDR pc,
+ CORE_ADDR fp,
int));
-extern void generic_push_dummy_frame PARAMS ((void));
-extern void generic_pop_dummy_frame PARAMS ((void));
+extern void generic_push_dummy_frame PARAMS ((void));
+extern void generic_pop_current_frame PARAMS ((void (*)(struct frame_info *)));
+extern void generic_pop_dummy_frame PARAMS ((void));
-extern int generic_pc_in_call_dummy PARAMS ((CORE_ADDR pc,
- CORE_ADDR fp));
-extern char * generic_find_dummy_frame PARAMS ((CORE_ADDR pc,
- CORE_ADDR fp));
-
-#ifdef __GNUC__
-enum lval_type;
-#endif
+extern int generic_pc_in_call_dummy PARAMS ((CORE_ADDR pc,
+ CORE_ADDR sp,
+ CORE_ADDR fp));
+extern char *generic_find_dummy_frame PARAMS ((CORE_ADDR pc,
+ CORE_ADDR fp));
-extern void generic_get_saved_register PARAMS ((char *, int *, CORE_ADDR *, struct frame_info *, int, enum lval_type *));
+extern void generic_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+ int nargs, struct value ** args,
+ struct type * type, int gcc_p));
+extern void generic_get_saved_register PARAMS ((char *, int *, CORE_ADDR *, struct frame_info *, int, enum lval_type *));
#endif /* !defined (FRAME_H) */
projects / deliverable / binutils-gdb.git / blobdiff