-/* Prototypes for exported functions. */
-
-void _initialize_blockframe (void);
-
-/* Is ADDR inside the startup file? Note that if your machine
- has a way to detect the bottom of the stack, there is no need
- to call this function from FRAME_CHAIN_VALID; the reason for
- doing so is that some machines have no way of detecting bottom
- of stack.
-
- A PC of zero is always considered to be the bottom of the stack. */
-
-int
-inside_entry_file (CORE_ADDR addr)
-{
- if (addr == 0)
- return 1;
- if (symfile_objfile == 0)
- return 0;
- if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
- {
- /* Do not stop backtracing if the pc is in the call dummy
- at the entry point. */
- /* FIXME: Won't always work with zeros for the last two arguments */
- if (DEPRECATED_PC_IN_CALL_DUMMY (addr, 0, 0))
- return 0;
- }
- return (addr >= symfile_objfile->ei.entry_file_lowpc &&
- addr < symfile_objfile->ei.entry_file_highpc);
-}
-
-/* Test a specified PC value to see if it is in the range of addresses
- that correspond to the main() function. See comments above for why
- we might want to do this.
-
- Typically called from FRAME_CHAIN_VALID.
-
- A PC of zero is always considered to be the bottom of the stack. */
-
-int
-inside_main_func (CORE_ADDR pc)
-{
- if (pc == 0)
- return 1;
- if (symfile_objfile == 0)
- return 0;
-
- /* If the addr range is not set up at symbol reading time, set it up now.
- This is for FRAME_CHAIN_VALID_ALTERNATE. I do this for coff, because
- it is unable to set it up and symbol reading time. */
-
- if (symfile_objfile->ei.main_func_lowpc == INVALID_ENTRY_LOWPC &&
- symfile_objfile->ei.main_func_highpc == INVALID_ENTRY_HIGHPC)
- {
- struct symbol *mainsym;
-
- mainsym = lookup_symbol (main_name (), NULL, VAR_NAMESPACE, NULL, NULL);
- if (mainsym && SYMBOL_CLASS (mainsym) == LOC_BLOCK)
- {
- symfile_objfile->ei.main_func_lowpc =
- BLOCK_START (SYMBOL_BLOCK_VALUE (mainsym));
- symfile_objfile->ei.main_func_highpc =
- BLOCK_END (SYMBOL_BLOCK_VALUE (mainsym));
- }
- }
- return (symfile_objfile->ei.main_func_lowpc <= pc &&
- symfile_objfile->ei.main_func_highpc > pc);
-}
-
-/* Test a specified PC value to see if it is in the range of addresses
- that correspond to the process entry point function. See comments
- in objfiles.h for why we might want to do this.
-
- Typically called from FRAME_CHAIN_VALID.
-
- A PC of zero is always considered to be the bottom of the stack. */
-
-int
-inside_entry_func (CORE_ADDR pc)
-{
- if (pc == 0)
- return 1;
- if (symfile_objfile == 0)
- return 0;
- if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
- {
- /* Do not stop backtracing if the pc is in the call dummy
- at the entry point. */
- /* FIXME: Won't always work with zeros for the last two arguments */
- if (DEPRECATED_PC_IN_CALL_DUMMY (pc, 0, 0))
- return 0;
- }
- return (symfile_objfile->ei.entry_func_lowpc <= pc &&
- symfile_objfile->ei.entry_func_highpc > pc);
-}
-
-/* Return nonzero if the function for this frame lacks a prologue. Many
- machines can define FRAMELESS_FUNCTION_INVOCATION to just call this
- function. */
-
-int
-frameless_look_for_prologue (struct frame_info *frame)
-{
- CORE_ADDR func_start, after_prologue;
-
- func_start = get_pc_function_start (get_frame_pc (frame));
- if (func_start)
- {
- func_start += FUNCTION_START_OFFSET;
- /* This is faster, since only care whether there *is* a
- prologue, not how long it is. */
- return PROLOGUE_FRAMELESS_P (func_start);
- }
- else if (get_frame_pc (frame) == 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. */
- return 1;
- else
- /* If we can't find the start of the function, we don't really
- know whether the function is frameless, but we should be able
- to get a reasonable (i.e. best we can do under the
- circumstances) backtrace by saying that it isn't. */
- return 0;
-}
-
-/* return the address of the PC for the given FRAME, ie the current PC value
- if FRAME is the innermost frame, or the address adjusted to point to the
- call instruction if not. */
-
-CORE_ADDR
-frame_address_in_block (struct frame_info *frame)
-{
- CORE_ADDR pc = get_frame_pc (frame);
-
- /* If we are not in the innermost frame, and we are not interrupted
- by a signal, frame->pc points to the instruction following the
- call. As a consequence, we need to get the address of the previous
- instruction. Unfortunately, this is not straightforward to do, so
- we just use the address minus one, which is a good enough
- approximation. */
- /* FIXME: cagney/2002-11-10: Should this instead test for
- NORMAL_FRAME? A dummy frame (in fact all the abnormal frames)
- save the PC value in the block. */
- if (get_next_frame (frame) != 0
- && get_frame_type (get_next_frame (frame)) != SIGTRAMP_FRAME)
- --pc;
-
- return pc;
-}
-
-/* Return the innermost lexical block in execution
- in a specified stack frame. The frame address is assumed valid.