/* Definitions for dealing with stack frames, for GDB, the GNU debugger.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#define FRAME_H 1
/* The following is the intended naming schema for frame functions.
- It isn't 100% consistent, but it is aproaching that. Frame naming
+ It isn't 100% consistent, but it is approaching that. Frame naming
schema:
Prefixes:
strongly hinting at its unsafeness)
safe_....(): Safer version of various functions, doesn't throw an
- error (leave this for later?). Returns non-zero / non-NULL if the
- request succeeds, zero / NULL otherwize.
+ error (leave this for later?). Returns true / non-NULL if the request
+ succeeds, false / NULL otherwise.
Suffixes:
as the special identifier address are set to indicate wild cards. */
extern struct frame_id frame_id_build_wild (CORE_ADDR stack_addr);
-/* Returns non-zero when L is a valid frame (a valid frame has a
- non-zero .base). The outermost frame is valid even without an
- ID. */
-extern int frame_id_p (struct frame_id l);
+/* Returns true when L is a valid frame. */
+extern bool frame_id_p (frame_id l);
-/* Returns non-zero when L is a valid frame representing a frame made up by GDB
+/* Returns true when L is a valid frame representing a frame made up by GDB
without stack data representation in inferior, such as INLINE_FRAME or
TAILCALL_FRAME. */
-extern int frame_id_artificial_p (struct frame_id l);
+extern bool frame_id_artificial_p (frame_id l);
-/* Returns non-zero when L and R identify the same frame, or, if
- either L or R have a zero .func, then the same frame base. */
-extern int frame_id_eq (struct frame_id l, struct frame_id r);
+/* Returns true when L and R identify the same frame. */
+extern bool frame_id_eq (frame_id l, frame_id r);
/* Write the internal representation of a frame ID on the specified
stream. */
/* Does the current target interface have enough state to be able to
query the current inferior for frame info, and is the inferior in a
state where that is possible? */
-extern int has_stack_frames (void);
+extern bool has_stack_frames ();
/* Invalidates the frame cache (this function should have been called
invalidate_cached_frames).
/* On demand, create the selected frame and then return it. If the
selected frame can not be created, this function prints then throws
an error. When MESSAGE is non-NULL, use it for the error message,
- otherwize use a generic error message. */
+ otherwise use a generic error message. */
/* FIXME: cagney/2002-11-28: At present, when there is no selected
frame, this function always returns the current (inner most) frame.
It should instead, when a thread has previously had its frame
/* Same as get_frame_pc, but return a boolean indication of whether
the PC is actually available, instead of throwing an error. */
-extern int get_frame_pc_if_available (struct frame_info *frame,
- CORE_ADDR *pc);
+extern bool get_frame_pc_if_available (frame_info *frame, CORE_ADDR *pc);
/* An address (not necessarily aligned to an instruction boundary)
that falls within THIS frame's code block.
PC is unavailable, it will not be), instead of possibly throwing an
error trying to read an unavailable PC. */
-extern int
- get_frame_address_in_block_if_available (struct frame_info *this_frame,
- CORE_ADDR *pc);
+extern bool get_frame_address_in_block_if_available (frame_info *this_frame,
+ CORE_ADDR *pc);
/* The frame's inner-most bound. AKA the stack-pointer. Confusingly
known as top-of-stack. */
will not be), instead of possibly throwing an error trying to read
an unavailable PC. */
-extern int get_frame_func_if_available (struct frame_info *fi, CORE_ADDR *);
+extern bool get_frame_func_if_available (frame_info *fi, CORE_ADDR *);
/* Closely related to the resume address, various symbol table
attributes that are determined by the PC. Note that for a normal
get_frame_register_value, that do not throw if the result is
optimized out or unavailable. */
-extern int read_frame_register_unsigned (struct frame_info *frame,
- int regnum, ULONGEST *val);
+extern bool read_frame_register_unsigned (frame_info *frame,
+ int regnum, ULONGEST *val);
/* Get the value of the register that belongs to this FRAME. This
function is a wrapper to the call sequence ``frame_register_unwind
in frame FRAME, starting at OFFSET, into BUF. If the register
contents are optimized out or unavailable, set *OPTIMIZEDP,
*UNAVAILABLEP accordingly. */
-extern int get_frame_register_bytes (struct frame_info *frame, int regnum,
- CORE_ADDR offset, int len,
- gdb_byte *myaddr,
- int *optimizedp, int *unavailablep);
+extern bool get_frame_register_bytes (frame_info *frame, int regnum,
+ CORE_ADDR offset, int len,
+ gdb_byte *myaddr,
+ int *optimizedp, int *unavailablep);
/* Write LEN bytes to one or multiple registers starting with REGNUM
in frame FRAME, starting at OFFSET, into BUF. */
extern ULONGEST get_frame_memory_unsigned (struct frame_info *this_frame,
CORE_ADDR memaddr, int len);
-/* Same as above, but return non-zero when the entire memory read
- succeeds, zero otherwize. */
-extern int safe_frame_unwind_memory (struct frame_info *this_frame,
- CORE_ADDR addr, gdb_byte *buf, int len);
+/* Same as above, but return true zero when the entire memory read
+ succeeds, false otherwise. */
+extern bool safe_frame_unwind_memory (frame_info *this_frame, CORE_ADDR addr,
+ gdb_byte *buf, int len);
/* Return this frame's architecture. */
extern struct gdbarch *get_frame_arch (struct frame_info *this_frame);
extern struct frame_info *block_innermost_frame (const struct block *);
-extern int deprecated_frame_register_read (struct frame_info *frame, int regnum,
- gdb_byte *buf);
+extern bool deprecated_frame_register_read (frame_info *frame, int regnum,
+ gdb_byte *buf);
/* From stack.c. */
/* Return true if the frame unwinder for frame FI is UNWINDER; false
otherwise. */
-extern int frame_unwinder_is (struct frame_info *fi,
- const struct frame_unwind *unwinder);
+extern bool frame_unwinder_is (frame_info *fi, const frame_unwind *unwinder);
/* Return the language of FRAME. */
/* The values behind the global "set backtrace ..." settings. */
extern set_backtrace_options user_set_backtrace_options;
+/* Get the number of calls to reinit_frame_cache. */
+
+unsigned int get_frame_cache_generation ();
+
/* Mark that the PC value is masked for the previous frame. */
extern void set_frame_previous_pc_masked (struct frame_info *frame);
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