/* Perform an inferior function call, for GDB, the GNU debugger.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
- Foundation, Inc.
+ 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "block.h"
#include "gdbcore.h"
#include "language.h"
-#include "symfile.h"
+#include "objfiles.h"
#include "gdbcmd.h"
#include "command.h"
#include "gdb_string.h"
if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
|| TYPE_CODE (ftype) == TYPE_CODE_METHOD)
{
- funaddr = CONVERT_FROM_FUNC_PTR_ADDR (funaddr);
+ funaddr = gdbarch_convert_from_func_ptr_addr (current_gdbarch,
+ funaddr,
+ ¤t_target);
value_type = TYPE_TARGET_TYPE (ftype);
}
else
DUMMY_ADDR is pretty messed up. It comes from constant tinkering
with the values. Instead a DEPRECATED_FIX_CALL_DUMMY replacement
(PUSH_DUMMY_BREAKPOINT?) should just do everything. */
-#ifdef GDB_TARGET_IS_HPPA
- (*real_pc) = DEPRECATED_FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs,
- args, value_type, using_gcc);
-#else
- if (DEPRECATED_FIX_CALL_DUMMY_P ())
+ if (!gdbarch_push_dummy_call_p (current_gdbarch))
{
- /* gdb_assert (CALL_DUMMY_LOCATION == ON_STACK) true? */
- DEPRECATED_FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
- value_type, using_gcc);
+ if (DEPRECATED_FIX_CALL_DUMMY_P ())
+ {
+ /* gdb_assert (CALL_DUMMY_LOCATION == ON_STACK) true? */
+ DEPRECATED_FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
+ value_type, using_gcc);
+ }
+ (*real_pc) = start_sp;
}
- (*real_pc) = start_sp;
-#endif
/* Yes, the offset is applied to the real_pc and not the dummy addr.
Ulgh! Blame the HP/UX target. */
(*bp_addr) = (*real_pc) + DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET;
if (gdbarch_push_dummy_code_p (gdbarch))
return gdbarch_push_dummy_code (gdbarch, sp, funaddr, using_gcc,
args, nargs, value_type, real_pc, bp_addr);
- else if (DEPRECATED_FIX_CALL_DUMMY_P ())
+ else if (DEPRECATED_FIX_CALL_DUMMY_P ()
+ && !gdbarch_push_dummy_call_p (gdbarch))
return legacy_push_dummy_code (gdbarch, sp, funaddr, using_gcc,
args, nargs, value_type, real_pc, bp_addr);
else
}
break;
case AT_ENTRY_POINT:
- if (DEPRECATED_FIX_CALL_DUMMY_P ())
+ if (DEPRECATED_FIX_CALL_DUMMY_P ()
+ && !gdbarch_push_dummy_call_p (current_gdbarch))
{
/* Sigh. Some targets use DEPRECATED_FIX_CALL_DUMMY to
shove extra stuff onto the stack or into registers. That
}
real_pc = funaddr;
dummy_addr = entry_point_address ();
- if (DEPRECATED_CALL_DUMMY_ADDRESS_P ())
- /* Override it. */
- dummy_addr = DEPRECATED_CALL_DUMMY_ADDRESS ();
/* Make certain that the address points at real code, and not a
function descriptor. */
- dummy_addr = CONVERT_FROM_FUNC_PTR_ADDR (dummy_addr);
+ dummy_addr = gdbarch_convert_from_func_ptr_addr (current_gdbarch,
+ dummy_addr,
+ ¤t_target);
/* A call dummy always consists of just a single breakpoint, so
it's address is the same as the address of the dummy. */
bp_addr = dummy_addr;
dummy_addr = entry_point_address ();
/* Make certain that the address points at real code, and not
a function descriptor. */
- dummy_addr = CONVERT_FROM_FUNC_PTR_ADDR (dummy_addr);
+ dummy_addr = gdbarch_convert_from_func_ptr_addr (current_gdbarch,
+ dummy_addr,
+ ¤t_target);
/* A call dummy always consists of just a single breakpoint,
so it's address is the same as the address of the dummy. */
bp_addr = dummy_addr;
}
}
- /* elz: on HPPA no need for this extra alignment, maybe it is needed
- on other architectures. This is because all the alignment is
- taken care of in the above code (ifdef DEPRECATED_REG_STRUCT_HAS_ADDR)
- and in hppa_push_arguments */
- /* NOTE: cagney/2003-03-24: The below code is very broken. Given an
- odd sized parameter the below will mis-align the stack. As was
- suggested back in '96, better to let PUSH_ARGUMENTS handle it. */
- if (DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED)
- {
- /* MVS 11/22/96: I think at least some of this stack_align code
- is really broken. Better to let push_dummy_call() adjust the
- stack in a target-defined manner. */
- if (DEPRECATED_STACK_ALIGN_P () && INNER_THAN (1, 2))
- {
- /* If stack grows down, we must leave a hole at the top. */
- int len = 0;
- int i;
- for (i = nargs - 1; i >= 0; i--)
- len += TYPE_LENGTH (VALUE_ENCLOSING_TYPE (args[i]));
- if (DEPRECATED_CALL_DUMMY_STACK_ADJUST_P ())
- len += DEPRECATED_CALL_DUMMY_STACK_ADJUST;
- sp -= DEPRECATED_STACK_ALIGN (len) - len;
- }
- }
-
/* Create the dummy stack frame. Pass in the call dummy address as,
presumably, the ABI code knows where, in the call dummy, the
return address should be pointed. */
{
/* If stack grows up, we must leave a hole at the bottom, note
that sp already has been advanced for the arguments! */
- if (DEPRECATED_CALL_DUMMY_STACK_ADJUST_P ())
- sp += DEPRECATED_CALL_DUMMY_STACK_ADJUST;
sp = DEPRECATED_STACK_ALIGN (sp);
}
-/* XXX This seems wrong. For stacks that grow down we shouldn't do
- anything here! */
- /* MVS 11/22/96: I think at least some of this stack_align code is
- really broken. Better to let PUSH_ARGUMENTS adjust the stack in
- a target-defined manner. */
- if (DEPRECATED_CALL_DUMMY_STACK_ADJUST_P ())
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= DEPRECATED_CALL_DUMMY_STACK_ADJUST;
- }
-
/* Store the address at which the structure is supposed to be
written. */
/* NOTE: 2003-03-24: Since PUSH_ARGUMENTS can (and typically does)
else
{
/* The assumption here is that push_dummy_call() returned the
- stack part of the frame ID. Unfortunatly, many older
+ stack part of the frame ID. Unfortunately, many older
architectures were, via a convoluted mess, relying on the
poorly defined and greatly overloaded
DEPRECATED_TARGET_READ_FP or DEPRECATED_FP_REGNUM to supply
do_cleanups (inf_status_cleanup);
/* Figure out the value returned by the function. */
- /* elz: I defined this new macro for the hppa architecture only.
- this gives us a way to get the value returned by the function
- from the stack, at the same address we told the function to put
- it. We cannot assume on the pa that r28 still contains the
- address of the returned structure. Usually this will be
- overwritten by the callee. I don't know about other
- architectures, so I defined this macro */
-#ifdef DEPRECATED_VALUE_RETURNED_FROM_STACK
if (struct_return)
{
- do_cleanups (retbuf_cleanup);
- return DEPRECATED_VALUE_RETURNED_FROM_STACK (value_type, struct_addr);
- }
-#endif
- /* NOTE: cagney/2002-09-10: Only when the stack has been correctly
- aligned (using frame_align()) do we can trust STRUCT_ADDR and
- fetch the return value direct from the stack. This lack of trust
- comes about because legacy targets have a nasty habit of
- silently, and local to PUSH_ARGUMENTS(), moving STRUCT_ADDR. For
- such targets, just hope that value_being_returned() can find the
- adjusted value. */
- if (struct_return && gdbarch_frame_align_p (current_gdbarch))
- {
+ /* NOTE: cagney/2003-09-27: This assumes that PUSH_DUMMY_CALL
+ has correctly stored STRUCT_ADDR in the target. In the past
+ that hasn't been the case, the old MIPS PUSH_ARGUMENTS
+ (PUSH_DUMMY_CALL precursor) would silently move the location
+ of the struct return value making STRUCT_ADDR bogus. If
+ you're seeing problems with values being returned using the
+ "struct return convention", check that PUSH_DUMMY_CALL isn't
+ playing tricks. */
struct value *retval = value_at (value_type, struct_addr, NULL);
do_cleanups (retbuf_cleanup);
return retval;
}
else
{
- struct value *retval = value_being_returned (value_type, retbuf,
- struct_return);
+ /* The non-register case was handled above. */
+ struct value *retval = register_value_being_returned (value_type,
+ retbuf);
do_cleanups (retbuf_cleanup);
return retval;
}
projects / deliverable / binutils-gdb.git / blobdiff