/* Prototypes for exported functions. */
-void _initialize_blockframe PARAMS ((void));
+void _initialize_blockframe (void);
/* A default FRAME_CHAIN_VALID, in the form that is suitable for most
targets. If FRAME_CHAIN_VALID returns zero it means that the given
frame is the outermost one and has no caller. */
int
-default_frame_chain_valid (chain, thisframe)
+file_frame_chain_valid (chain, thisframe)
CORE_ADDR chain;
struct frame_info *thisframe;
{
return ((chain) != 0
- && !inside_main_func ((thisframe)->pc)
- && !inside_entry_func ((thisframe)->pc));
+ && !inside_entry_file (FRAME_SAVED_PC (thisframe)));
}
/* Use the alternate method of avoiding running up off the end of the
the comments in objfiles.h. */
int
-alternate_frame_chain_valid (chain, thisframe)
+func_frame_chain_valid (chain, thisframe)
CORE_ADDR chain;
struct frame_info *thisframe;
{
return ((chain) != 0
- && !inside_entry_file (FRAME_SAVED_PC (thisframe)));
+ && !inside_main_func ((thisframe)->pc)
+ && !inside_entry_func ((thisframe)->pc));
}
/* A very simple method of determining a valid frame */
}
}
-/* If a machine allows frameless functions, it should define a macro
- FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) in param.h. FI is the struct
- frame_info for the frame, and FRAMELESS should be set to nonzero
- if it represents a frameless function invocation. */
-
/* Return nonzero if the function for this frame lacks a prologue. Many
machines can define FRAMELESS_FUNCTION_INVOCATION to just call this
function. */
struct frame_info *frame;
{
CORE_ADDR func_start, after_prologue;
+
func_start = get_pc_function_start (frame->pc);
if (func_start)
{
func_start += FUNCTION_START_OFFSET;
- after_prologue = func_start;
-#ifdef SKIP_PROLOGUE_FRAMELESS_P
- /* This is faster, since only care whether there *is* a prologue,
- not how long it is. */
- after_prologue = SKIP_PROLOGUE_FRAMELESS_P (after_prologue);
-#else
- after_prologue = SKIP_PROLOGUE (after_prologue);
-#endif
- return after_prologue == func_start;
+ /* This is faster, since only care whether there *is* a
+ prologue, not how long it is. */
+ return PROLOGUE_FRAMELESS_P (func_start);
}
else if (frame->pc == 0)
- /* A frame with a zero PC is usually created by dereferencing a NULL
- function pointer, normally causing an immediate core dump of the
- inferior. Mark function as frameless, as the inferior has no chance
- of setting up a stack frame. */
+ /* A frame with a zero PC is usually created by dereferencing a
+ NULL function pointer, normally causing an immediate core dump
+ of the inferior. Mark function as frameless, as the inferior
+ has no chance of setting up a stack frame. */
return 1;
else
/* If we can't find the start of the function, we don't really
* zero, and CALL_DUMMY_LOCATION to AT_ENTRY. Then you must remember
* to define PUSH_RETURN_ADDRESS, because no call instruction will be
* being executed by the target. Also FRAME_CHAIN_VALID as
- * generic_frame_chain_valid and FIX_CALL_DUMMY as
+ * generic_{file,func}_frame_chain_valid and FIX_CALL_DUMMY as
* generic_fix_call_dummy. */
/* Dummy frame. This saves the processor state just prior to setting
up the inferior function call. Older targets save the registers
- target stack (but that really slows down function calls). */
+ on the target stack (but that really slows down function calls). */
struct dummy_frame
{
dummy_frame = xmalloc (sizeof (struct dummy_frame));
dummy_frame->registers = xmalloc (REGISTER_BYTES);
- dummy_frame->pc = read_register (PC_REGNUM);
- dummy_frame->sp = read_register (SP_REGNUM);
+ dummy_frame->pc = read_pc ();
+ dummy_frame->sp = read_sp ();
dummy_frame->top = dummy_frame->sp;
dummy_frame->fp = fp;
read_register_bytes (0, dummy_frame->registers, REGISTER_BYTES);
dummy_frame_stack->top = sp;
}
-/* Function: pop_frame
- Restore the machine state from either the saved dummy stack or a
+/* Restore the machine state from either the saved dummy stack or a
real stack frame. */
void
-generic_pop_current_frame (pop)
- void (*pop) PARAMS ((struct frame_info * frame));
+generic_pop_current_frame (void (*popper) (struct frame_info * frame))
{
struct frame_info *frame = get_current_frame ();
+
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
generic_pop_dummy_frame ();
else
- pop (frame);
+ (*popper) (frame);
}
/* Function: pop_dummy_frame
and false for the CRT0 start-up frame. Purpose is to terminate backtrace */
int
-generic_frame_chain_valid (fp, fi)
+generic_file_frame_chain_valid (fp, fi)
CORE_ADDR fp;
struct frame_info *fi;
{
&& !inside_entry_file (FRAME_SAVED_PC (fi)));
}
+int
+generic_func_frame_chain_valid (fp, fi)
+ CORE_ADDR fp;
+ struct frame_info *fi;
+{
+ if (PC_IN_CALL_DUMMY ((fi)->pc, fp, fp))
+ return 1; /* don't prune CALL_DUMMY frames */
+ else /* fall back to default algorithm (see frame.h) */
+ return (fp != 0
+ && (INNER_THAN (fi->frame, fp) || fi->frame == fp)
+ && !inside_main_func ((fi)->pc)
+ && !inside_entry_func ((fi)->pc));
+}
+
/* Function: fix_call_dummy
Stub function. Generic dumy frames typically do not need to fix
the frame being created */
}
void
-_initialize_blockframe ()
+_initialize_blockframe (void)
{
obstack_init (&frame_cache_obstack);
}
projects / deliverable / binutils-gdb.git / blobdiff