-/* Target-dependent code for the Matsushita MN10200 for GDB, the GNU debugger.
- Copyright 1997 Free Software Foundation, Inc.
-
-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 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. */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "obstack.h"
-#include "target.h"
-#include "value.h"
-#include "bfd.h"
-#include "gdb_string.h"
-#include "gdbcore.h"
-#include "symfile.h"
-
-/* Info gleaned from scanning a function's prologue. */
-
-struct pifsr /* Info about one saved reg */
-{
- int framereg; /* Frame reg (SP or FP) */
- int offset; /* Offset from framereg */
- int reg; /* Saved register number */
-};
-
-struct prologue_info
-{
- int framereg;
- int frameoffset;
- int start_function;
- struct pifsr *pifsrs;
-};
-
-/* Function: frame_chain
- Figure out and return the caller's frame pointer given current
- frame_info struct.
-
- We start out knowing the current pc, current sp, current fp.
- We want to determine the caller's fp and caller's pc. To do this
- correctly, we have to be able to handle the case where we are in the
- middle of the prologue which involves scanning the prologue.
-
- We don't handle dummy frames yet but we would probably just return the
- stack pointer that was in use at the time the function call was made?
-*/
-
-CORE_ADDR
-mn10200_frame_chain (fi)
- struct frame_info *fi;
-{
- struct prologue_info pi;
- CORE_ADDR callers_pc, callers_fp, curr_sp;
- CORE_ADDR past_prologue_addr;
- int past_prologue = 1; /* default to being past prologue */
- int n_movm_args = 4;
-
- struct pifsr *pifsr, *pifsr_tmp;
-
- /* current pc is fi->pc */
- /* current fp is fi->frame */
- /* current sp is: */
- curr_sp = read_register (SP_REGNUM);
-
-/*
- printf("curr pc = 0x%x ; curr fp = 0x%x ; curr sp = 0x%x\n",
- fi->pc, fi->frame, curr_sp);
-*/
-
- /* first inst after prologue is: */
- past_prologue_addr = mn10200_skip_prologue (fi->pc);
-
- /* Are we in the prologue? */
- /* Yes if mn10200_skip_prologue returns an address after the
- current pc in which case we have to scan prologue */
- if (fi->pc < mn10200_skip_prologue (fi->pc))
- past_prologue = 0;
-
- /* scan prologue if we're not past it */
- if (!past_prologue)
- {
- /* printf("scanning prologue\n"); */
- /* FIXME -- fill out this case later */
- return 0x0; /* bogus value */
- }
-
- if (past_prologue) /* if we don't need to scan the prologue */
- {
- callers_pc = fi->frame - REGISTER_SIZE;
- callers_fp = fi->frame - (4 * REGISTER_SIZE);
-
-#if 0
- printf("callers_pc = 0x%x ; callers_fp = 0x%x\n",
- callers_pc, callers_fp);
- printf("*callers_pc = 0x%x ; *callers_fp = 0x%x\n",
- read_memory_integer(callers_pc, REGISTER_SIZE),
- read_memory_integer(callers_fp, REGISTER_SIZE));
-#endif
-
- return read_memory_integer(callers_fp, REGISTER_SIZE);
- }
-
- /* we don't get here */
-}
-
-/* Function: find_callers_reg
- Find REGNUM on the stack. Otherwise, it's in an active register.
- One thing we might want to do here is to check REGNUM against the
- clobber mask, and somehow flag it as invalid if it isn't saved on
- the stack somewhere. This would provide a graceful failure mode
- when trying to get the value of caller-saves registers for an inner
- frame. */
-
-CORE_ADDR
-mn10200_find_callers_reg (fi, regnum)
- struct frame_info *fi;
- int regnum;
-{
-/* printf("mn10200_find_callers_reg\n"); */
-
- for (; fi; fi = fi->next)
- if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
- return generic_read_register_dummy (fi->pc, fi->frame, regnum);
- else if (fi->fsr.regs[regnum] != 0)
- return read_memory_unsigned_integer (fi->fsr.regs[regnum],
- REGISTER_RAW_SIZE(regnum));
-
- return read_register (regnum);
-}
-
-/* Function: skip_prologue
- Return the address of the first inst past the prologue of the function.
-*/
-
-CORE_ADDR
-mn10200_skip_prologue (pc)
- CORE_ADDR pc;
-{
- CORE_ADDR func_addr, func_end;
-
-/* printf("mn10200_skip_prologue\n"); */
-
- /* See what the symbol table says */
-
- if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
- {
- struct symtab_and_line sal;
-
- sal = find_pc_line (func_addr, 0);
-
- if (sal.line != 0 && sal.end < func_end)
- return sal.end;
- else
- /* Either there's no line info, or the line after the prologue is after
- the end of the function. In this case, there probably isn't a
- prologue. */
- return pc;
- }
-
-/* We can't find the start of this function, so there's nothing we can do. */
- return pc;
-}
-
-/* Function: pop_frame
- This routine gets called when either the user uses the `return'
- command, or the call dummy breakpoint gets hit. */
-
-void
-mn10200_pop_frame (frame)
- struct frame_info *frame;
-{
- int regnum;
-
-/* printf("mn10200_pop_frame start\n"); */
-
- if (PC_IN_CALL_DUMMY(frame->pc, frame->frame, frame->frame))
- generic_pop_dummy_frame ();
- else
- {
- write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
-
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- if (frame->fsr.regs[regnum] != 0)
- write_register (regnum,
- read_memory_unsigned_integer (frame->fsr.regs[regnum],
- REGISTER_RAW_SIZE(regnum)));
-
- write_register (SP_REGNUM, FRAME_FP (frame));
- }
-
- flush_cached_frames ();
-
-/* printf("mn10200_pop_frame end\n"); */
-}
-
-/* Function: push_arguments
- Setup arguments for a call to the target. Arguments go in
- order on the stack.
-*/
-
-CORE_ADDR
-mn10200_push_arguments (nargs, args, sp, struct_return, struct_addr)
- int nargs;
- value_ptr *args;
- CORE_ADDR sp;
- unsigned char struct_return;
- CORE_ADDR struct_addr;
-{
- int argnum = 0;
- int len = 0;
- int stack_offset = 0; /* copy args to this offset onto stack */
-
-/* printf("mn10200_push_arguments start\n"); */
-
- /* First, just for safety, make sure stack is aligned */
- sp &= ~3;
-
- /* Now make space on the stack for the args. */
- for (argnum = 0; argnum < nargs; argnum++)
- len += ((TYPE_LENGTH(VALUE_TYPE(args[argnum])) + 3) & ~3);
-
- sp -= len;
-
- /* Push all arguments onto the stack. */
- for (argnum = 0; argnum < nargs; argnum++)
- {
- int len;
- char *val;
-
- if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT
- && TYPE_LENGTH (VALUE_TYPE (*args)) > 8)
- {
- /* for now, pretend structs aren't special */
- len = TYPE_LENGTH (VALUE_TYPE (*args));
- val = (char *)VALUE_CONTENTS (*args);
- }
- else
- {
- len = TYPE_LENGTH (VALUE_TYPE (*args));
- val = (char *)VALUE_CONTENTS (*args);
- }
-
- while (len > 0)
- {
- write_memory (sp + stack_offset, val, 4);
-
- len -= 4;
- val += 4;
- stack_offset += 4;
- }
- args++;
- }
-
-/* printf"mn10200_push_arguments end\n"); */
-
- return sp;
-}
-
-/* Function: push_return_address (pc)
- Set up the return address for the inferior function call.
- Needed for targets where we don't actually execute a JSR/BSR instruction */
-
-CORE_ADDR
-mn10200_push_return_address (pc, sp)
- CORE_ADDR pc;
- CORE_ADDR sp;
-{
-/* printf("mn10200_push_return_address\n"); */
-
- /* write_register (RP_REGNUM, CALL_DUMMY_ADDRESS ()); */
- return sp;
-}
-
-/* Function: frame_saved_pc
- Find the caller of this frame. We do this by seeing if RP_REGNUM
- is saved in the stack anywhere, otherwise we get it from the
- registers. If the inner frame is a dummy frame, return its PC
- instead of RP, because that's where "caller" of the dummy-frame
- will be found. */
-
-CORE_ADDR
-mn10200_frame_saved_pc (fi)
- struct frame_info *fi;
-{
-/* printf("mn10200_frame_saved_pc\n"); */
-
- return (read_memory_integer(fi->frame - REGISTER_SIZE, REGISTER_SIZE));
-}
-
-void
-get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
- char *raw_buffer;
- int *optimized;
- CORE_ADDR *addrp;
- struct frame_info *frame;
- int regnum;
- enum lval_type *lval;
-{
-/* printf("get_saved_register\n"); */
-
- generic_get_saved_register (raw_buffer, optimized, addrp,
- frame, regnum, lval);
-}
-
-/* Function: init_extra_frame_info
- Setup the frame's frame pointer, pc, and frame addresses for saved
- registers. Most of the work is done in frame_chain().
-
- Note that when we are called for the last frame (currently active frame),
- that fi->pc and fi->frame will already be setup. However, fi->frame will
- be valid only if this routine uses FP. For previous frames, fi-frame will
- always be correct (since that is derived from v850_frame_chain ()).
-
- We can be called with the PC in the call dummy under two circumstances.
- First, during normal backtracing, second, while figuring out the frame
- pointer just prior to calling the target function (see run_stack_dummy).
-*/
-
-void
-mn10200_init_extra_frame_info (fi)
- struct frame_info *fi;
-{
- struct prologue_info pi;
- struct pifsr pifsrs[NUM_REGS + 1], *pifsr;
- int reg;
-
- if (fi->next)
- fi->pc = FRAME_SAVED_PC (fi->next);
-
- memset (fi->fsr.regs, '\000', sizeof fi->fsr.regs);
-
- /* The call dummy doesn't save any registers on the stack, so we can return
- now. */
-/*
- if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
- return;
-
- pi.pifsrs = pifsrs;
-*/
-
- /* v850_scan_prologue (fi->pc, &pi); */
-/*
- if (!fi->next && pi.framereg == SP_REGNUM)
- fi->frame = read_register (pi.framereg) - pi.frameoffset;
-
- for (pifsr = pifsrs; pifsr->framereg; pifsr++)
- {
- fi->fsr.regs[pifsr->reg] = pifsr->offset + fi->frame;
-
- if (pifsr->framereg == SP_REGNUM)
- fi->fsr.regs[pifsr->reg] += pi.frameoffset;
- }
-*/
-/* printf("init_extra_frame_info\n"); */
-}
-
-void
-_initialize_mn10200_tdep ()
-{
-/* printf("_initialize_mn10200_tdep\n"); */
-
- tm_print_insn = print_insn_mn10200;
-}
-
+// OBSOLETE /* Target-dependent code for the Matsushita MN10200 for GDB, the GNU debugger.
+// OBSOLETE
+// OBSOLETE Copyright 1997, 1998, 1999, 2000, 2001, 2003 Free Software
+// OBSOLETE Foundation, Inc.
+// OBSOLETE
+// OBSOLETE This file is part of GDB.
+// OBSOLETE
+// OBSOLETE This program is free software; you can redistribute it and/or modify
+// OBSOLETE it under the terms of the GNU General Public License as published by
+// OBSOLETE the Free Software Foundation; either version 2 of the License, or
+// OBSOLETE (at your option) any later version.
+// OBSOLETE
+// OBSOLETE This program is distributed in the hope that it will be useful,
+// OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of
+// OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// OBSOLETE GNU General Public License for more details.
+// OBSOLETE
+// OBSOLETE You should have received a copy of the GNU General Public License
+// OBSOLETE along with this program; if not, write to the Free Software
+// OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330,
+// OBSOLETE Boston, MA 02111-1307, USA. */
+// OBSOLETE
+// OBSOLETE #include "defs.h"
+// OBSOLETE #include "frame.h"
+// OBSOLETE #include "inferior.h"
+// OBSOLETE #include "target.h"
+// OBSOLETE #include "value.h"
+// OBSOLETE #include "bfd.h"
+// OBSOLETE #include "gdb_string.h"
+// OBSOLETE #include "gdbcore.h"
+// OBSOLETE #include "symfile.h"
+// OBSOLETE #include "regcache.h"
+// OBSOLETE
+// OBSOLETE
+// OBSOLETE /* Should call_function allocate stack space for a struct return? */
+// OBSOLETE int
+// OBSOLETE mn10200_use_struct_convention (int gcc_p, struct type *type)
+// OBSOLETE {
+// OBSOLETE return (TYPE_NFIELDS (type) > 1 || TYPE_LENGTH (type) > 8);
+// OBSOLETE }
+// OBSOLETE /* *INDENT-OFF* */
+// OBSOLETE /* The main purpose of this file is dealing with prologues to extract
+// OBSOLETE information about stack frames and saved registers.
+// OBSOLETE
+// OBSOLETE For reference here's how prologues look on the mn10200:
+// OBSOLETE
+// OBSOLETE With frame pointer:
+// OBSOLETE mov fp,a0
+// OBSOLETE mov sp,fp
+// OBSOLETE add <size>,sp
+// OBSOLETE Register saves for d2, d3, a1, a2 as needed. Saves start
+// OBSOLETE at fp - <size> + <outgoing_args_size> and work towards higher
+// OBSOLETE addresses. Note that the saves are actually done off the stack
+// OBSOLETE pointer in the prologue! This makes for smaller code and easier
+// OBSOLETE prologue scanning as the displacement fields will unlikely
+// OBSOLETE be more than 8 bits!
+// OBSOLETE
+// OBSOLETE Without frame pointer:
+// OBSOLETE add <size>,sp
+// OBSOLETE Register saves for d2, d3, a1, a2 as needed. Saves start
+// OBSOLETE at sp + <outgoing_args_size> and work towards higher addresses.
+// OBSOLETE
+// OBSOLETE Out of line prologue:
+// OBSOLETE add <local size>,sp -- optional
+// OBSOLETE jsr __prologue
+// OBSOLETE add <outgoing_size>,sp -- optional
+// OBSOLETE
+// OBSOLETE The stack pointer remains constant throughout the life of most
+// OBSOLETE functions. As a result the compiler will usually omit the
+// OBSOLETE frame pointer, so we must handle frame pointerless functions. */
+// OBSOLETE
+// OBSOLETE /* Analyze the prologue to determine where registers are saved,
+// OBSOLETE the end of the prologue, etc etc. Return the end of the prologue
+// OBSOLETE scanned.
+// OBSOLETE
+// OBSOLETE We store into FI (if non-null) several tidbits of information:
+// OBSOLETE
+// OBSOLETE * stack_size -- size of this stack frame. Note that if we stop in
+// OBSOLETE certain parts of the prologue/epilogue we may claim the size of the
+// OBSOLETE current frame is zero. This happens when the current frame has
+// OBSOLETE not been allocated yet or has already been deallocated.
+// OBSOLETE
+// OBSOLETE * fsr -- Addresses of registers saved in the stack by this frame.
+// OBSOLETE
+// OBSOLETE * status -- A (relatively) generic status indicator. It's a bitmask
+// OBSOLETE with the following bits:
+// OBSOLETE
+// OBSOLETE MY_FRAME_IN_SP: The base of the current frame is actually in
+// OBSOLETE the stack pointer. This can happen for frame pointerless
+// OBSOLETE functions, or cases where we're stopped in the prologue/epilogue
+// OBSOLETE itself. For these cases mn10200_analyze_prologue will need up
+// OBSOLETE update fi->frame before returning or analyzing the register
+// OBSOLETE save instructions.
+// OBSOLETE
+// OBSOLETE MY_FRAME_IN_FP: The base of the current frame is in the
+// OBSOLETE frame pointer register ($a2).
+// OBSOLETE
+// OBSOLETE CALLER_A2_IN_A0: $a2 from the caller's frame is temporarily
+// OBSOLETE in $a0. This can happen if we're stopped in the prologue.
+// OBSOLETE
+// OBSOLETE NO_MORE_FRAMES: Set this if the current frame is "start" or
+// OBSOLETE if the first instruction looks like mov <imm>,sp. This tells
+// OBSOLETE frame chain to not bother trying to unwind past this frame. */
+// OBSOLETE /* *INDENT-ON* */
+// OBSOLETE
+// OBSOLETE
+// OBSOLETE
+// OBSOLETE
+// OBSOLETE #define MY_FRAME_IN_SP 0x1
+// OBSOLETE #define MY_FRAME_IN_FP 0x2
+// OBSOLETE #define CALLER_A2_IN_A0 0x4
+// OBSOLETE #define NO_MORE_FRAMES 0x8
+// OBSOLETE
+// OBSOLETE static CORE_ADDR
+// OBSOLETE mn10200_analyze_prologue (struct frame_info *fi, CORE_ADDR pc)
+// OBSOLETE {
+// OBSOLETE CORE_ADDR func_addr, func_end, addr, stop;
+// OBSOLETE CORE_ADDR stack_size = 0;
+// OBSOLETE unsigned char buf[4];
+// OBSOLETE int status;
+// OBSOLETE char *name;
+// OBSOLETE int out_of_line_prologue = 0;
+// OBSOLETE
+// OBSOLETE /* Use the PC in the frame if it's provided to look up the
+// OBSOLETE start of this function. */
+// OBSOLETE pc = (fi ? get_frame_pc (fi) : pc);
+// OBSOLETE
+// OBSOLETE /* Find the start of this function. */
+// OBSOLETE status = find_pc_partial_function (pc, &name, &func_addr, &func_end);
+// OBSOLETE
+// OBSOLETE /* Do nothing if we couldn't find the start of this function or if we're
+// OBSOLETE stopped at the first instruction in the prologue. */
+// OBSOLETE if (status == 0)
+// OBSOLETE return pc;
+// OBSOLETE
+// OBSOLETE /* If we're in start, then give up. */
+// OBSOLETE if (strcmp (name, "start") == 0)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE fi->status = NO_MORE_FRAMES;
+// OBSOLETE return pc;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* At the start of a function our frame is in the stack pointer. */
+// OBSOLETE if (fi)
+// OBSOLETE fi->status = MY_FRAME_IN_SP;
+// OBSOLETE
+// OBSOLETE /* If we're physically on an RTS instruction, then our frame has already
+// OBSOLETE been deallocated.
+// OBSOLETE
+// OBSOLETE fi->frame is bogus, we need to fix it. */
+// OBSOLETE if (fi && get_frame_pc (fi) + 1 == func_end)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (get_frame_pc (fi), buf, 1);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return get_frame_pc (fi);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE if (buf[0] == 0xfe)
+// OBSOLETE {
+// OBSOLETE if (get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return get_frame_pc (fi);
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Similarly if we're stopped on the first insn of a prologue as our
+// OBSOLETE frame hasn't been allocated yet. */
+// OBSOLETE if (fi && get_frame_pc (fi) == func_addr)
+// OBSOLETE {
+// OBSOLETE if (get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return get_frame_pc (fi);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Figure out where to stop scanning. */
+// OBSOLETE stop = fi ? get_frame_pc (fi) : func_end;
+// OBSOLETE
+// OBSOLETE /* Don't walk off the end of the function. */
+// OBSOLETE stop = stop > func_end ? func_end : stop;
+// OBSOLETE
+// OBSOLETE /* Start scanning on the first instruction of this function. */
+// OBSOLETE addr = func_addr;
+// OBSOLETE
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && fi->status & MY_FRAME_IN_SP)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* First see if this insn sets the stack pointer; if so, it's something
+// OBSOLETE we won't understand, so quit now. */
+// OBSOLETE if (buf[0] == 0xdf
+// OBSOLETE || (buf[0] == 0xf4 && buf[1] == 0x77))
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE fi->status = NO_MORE_FRAMES;
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Now see if we have a frame pointer.
+// OBSOLETE
+// OBSOLETE Search for mov a2,a0 (0xf278)
+// OBSOLETE then mov a3,a2 (0xf27e). */
+// OBSOLETE
+// OBSOLETE if (buf[0] == 0xf2 && buf[1] == 0x78)
+// OBSOLETE {
+// OBSOLETE /* Our caller's $a2 will be found in $a0 now. Note it for
+// OBSOLETE our callers. */
+// OBSOLETE if (fi)
+// OBSOLETE fi->status |= CALLER_A2_IN_A0;
+// OBSOLETE addr += 2;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE /* We still haven't allocated our local stack. Handle this
+// OBSOLETE as if we stopped on the first or last insn of a function. */
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE if (buf[0] == 0xf2 && buf[1] == 0x7e)
+// OBSOLETE {
+// OBSOLETE addr += 2;
+// OBSOLETE
+// OBSOLETE /* Our frame pointer is valid now. */
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE fi->status |= MY_FRAME_IN_FP;
+// OBSOLETE fi->status &= ~MY_FRAME_IN_SP;
+// OBSOLETE }
+// OBSOLETE if (addr >= stop)
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Next we should allocate the local frame.
+// OBSOLETE
+// OBSOLETE Search for add imm8,a3 (0xd3XX)
+// OBSOLETE or add imm16,a3 (0xf70bXXXX)
+// OBSOLETE or add imm24,a3 (0xf467XXXXXX).
+// OBSOLETE
+// OBSOLETE If none of the above was found, then this prologue has
+// OBSOLETE no stack, and therefore can't have any register saves,
+// OBSOLETE so quit now. */
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE if (buf[0] == 0xd3)
+// OBSOLETE {
+// OBSOLETE stack_size = extract_signed_integer (&buf[1], 1);
+// OBSOLETE if (fi)
+// OBSOLETE fi->stack_size = stack_size;
+// OBSOLETE addr += 2;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - stack_size);
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE else if (buf[0] == 0xf7 && buf[1] == 0x0b)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE stack_size = extract_signed_integer (buf, 2);
+// OBSOLETE if (fi)
+// OBSOLETE fi->stack_size = stack_size;
+// OBSOLETE addr += 4;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - stack_size);
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE else if (buf[0] == 0xf4 && buf[1] == 0x67)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 3);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE stack_size = extract_signed_integer (buf, 3);
+// OBSOLETE if (fi)
+// OBSOLETE fi->stack_size = stack_size;
+// OBSOLETE addr += 5;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - stack_size);
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Now see if we have a call to __prologue for an out of line
+// OBSOLETE prologue. */
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE
+// OBSOLETE /* First check for 16bit pc-relative call to __prologue. */
+// OBSOLETE if (buf[0] == 0xfd)
+// OBSOLETE {
+// OBSOLETE CORE_ADDR temp;
+// OBSOLETE status = target_read_memory (addr + 1, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Get the PC this instruction will branch to. */
+// OBSOLETE temp = (extract_signed_integer (buf, 2) + addr + 3) & 0xffffff;
+// OBSOLETE
+// OBSOLETE /* Get the name of the function at the target address. */
+// OBSOLETE status = find_pc_partial_function (temp, &name, NULL, NULL);
+// OBSOLETE if (status == 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Note if it is an out of line prologue. */
+// OBSOLETE out_of_line_prologue = (strcmp (name, "__prologue") == 0);
+// OBSOLETE
+// OBSOLETE /* This sucks up 3 bytes of instruction space. */
+// OBSOLETE if (out_of_line_prologue)
+// OBSOLETE addr += 3;
+// OBSOLETE
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE {
+// OBSOLETE fi->stack_size -= 16;
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - fi->stack_size);
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE /* Now check for the 24bit pc-relative call to __prologue. */
+// OBSOLETE else if (buf[0] == 0xf4 && buf[1] == 0xe1)
+// OBSOLETE {
+// OBSOLETE CORE_ADDR temp;
+// OBSOLETE status = target_read_memory (addr + 2, buf, 3);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Get the PC this instruction will branch to. */
+// OBSOLETE temp = (extract_signed_integer (buf, 3) + addr + 5) & 0xffffff;
+// OBSOLETE
+// OBSOLETE /* Get the name of the function at the target address. */
+// OBSOLETE status = find_pc_partial_function (temp, &name, NULL, NULL);
+// OBSOLETE if (status == 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp ());
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Note if it is an out of line prologue. */
+// OBSOLETE out_of_line_prologue = (strcmp (name, "__prologue") == 0);
+// OBSOLETE
+// OBSOLETE /* This sucks up 5 bytes of instruction space. */
+// OBSOLETE if (out_of_line_prologue)
+// OBSOLETE addr += 5;
+// OBSOLETE
+// OBSOLETE if (addr >= stop)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP))
+// OBSOLETE {
+// OBSOLETE fi->stack_size -= 16;
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - fi->stack_size);
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Now actually handle the out of line prologue. */
+// OBSOLETE if (out_of_line_prologue)
+// OBSOLETE {
+// OBSOLETE int outgoing_args_size = 0;
+// OBSOLETE
+// OBSOLETE /* First adjust the stack size for this function. The out of
+// OBSOLETE line prologue saves 4 registers (16bytes of data). */
+// OBSOLETE if (fi)
+// OBSOLETE fi->stack_size -= 16;
+// OBSOLETE
+// OBSOLETE /* Update fi->frame if necessary. */
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - fi->stack_size);
+// OBSOLETE
+// OBSOLETE /* After the out of line prologue, there may be another
+// OBSOLETE stack adjustment for the outgoing arguments.
+// OBSOLETE
+// OBSOLETE Search for add imm8,a3 (0xd3XX)
+// OBSOLETE or add imm16,a3 (0xf70bXXXX)
+// OBSOLETE or add imm24,a3 (0xf467XXXXXX). */
+// OBSOLETE
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE fi->fsr.regs[2] = get_frame_base (fi) + fi->stack_size + 4;
+// OBSOLETE fi->fsr.regs[3] = get_frame_base (fi) + fi->stack_size + 8;
+// OBSOLETE fi->fsr.regs[5] = get_frame_base (fi) + fi->stack_size + 12;
+// OBSOLETE fi->fsr.regs[6] = get_frame_base (fi) + fi->stack_size + 16;
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE if (buf[0] == 0xd3)
+// OBSOLETE {
+// OBSOLETE outgoing_args_size = extract_signed_integer (&buf[1], 1);
+// OBSOLETE addr += 2;
+// OBSOLETE }
+// OBSOLETE else if (buf[0] == 0xf7 && buf[1] == 0x0b)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE fi->fsr.regs[2] = get_frame_base (fi) + fi->stack_size + 4;
+// OBSOLETE fi->fsr.regs[3] = get_frame_base (fi) + fi->stack_size + 8;
+// OBSOLETE fi->fsr.regs[5] = get_frame_base (fi) + fi->stack_size + 12;
+// OBSOLETE fi->fsr.regs[6] = get_frame_base (fi) + fi->stack_size + 16;
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE outgoing_args_size = extract_signed_integer (buf, 2);
+// OBSOLETE addr += 4;
+// OBSOLETE }
+// OBSOLETE else if (buf[0] == 0xf4 && buf[1] == 0x67)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 3);
+// OBSOLETE if (status != 0)
+// OBSOLETE {
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE {
+// OBSOLETE fi->fsr.regs[2] = get_frame_base (fi) + fi->stack_size + 4;
+// OBSOLETE fi->fsr.regs[3] = get_frame_base (fi) + fi->stack_size + 8;
+// OBSOLETE fi->fsr.regs[5] = get_frame_base (fi) + fi->stack_size + 12;
+// OBSOLETE fi->fsr.regs[6] = get_frame_base (fi) + fi->stack_size + 16;
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE outgoing_args_size = extract_signed_integer (buf, 3);
+// OBSOLETE addr += 5;
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE outgoing_args_size = 0;
+// OBSOLETE
+// OBSOLETE /* Now that we know the size of the outgoing arguments, fix
+// OBSOLETE fi->frame again if this is the innermost frame. */
+// OBSOLETE if (fi && get_next_frame (fi) == NULL)
+// OBSOLETE deprecated_update_frame_base_hack (fi, get_frame_base (fi) - outgoing_args_size);
+// OBSOLETE
+// OBSOLETE /* Note the register save information and update the stack
+// OBSOLETE size for this frame too. */
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE fi->fsr.regs[2] = get_frame_base (fi) + fi->stack_size + 4;
+// OBSOLETE fi->fsr.regs[3] = get_frame_base (fi) + fi->stack_size + 8;
+// OBSOLETE fi->fsr.regs[5] = get_frame_base (fi) + fi->stack_size + 12;
+// OBSOLETE fi->fsr.regs[6] = get_frame_base (fi) + fi->stack_size + 16;
+// OBSOLETE fi->stack_size += outgoing_args_size;
+// OBSOLETE }
+// OBSOLETE /* There can be no more prologue insns, so return now. */
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* At this point fi->frame needs to be correct.
+// OBSOLETE
+// OBSOLETE If MY_FRAME_IN_SP is set and we're the innermost frame, then we
+// OBSOLETE need to fix fi->frame so that backtracing, find_frame_saved_regs,
+// OBSOLETE etc work correctly. */
+// OBSOLETE if (fi && get_next_frame (fi) == NULL && (fi->status & MY_FRAME_IN_SP) != 0)
+// OBSOLETE deprecated_update_frame_base_hack (fi, read_sp () - fi->stack_size);
+// OBSOLETE
+// OBSOLETE /* And last we have the register saves. These are relatively
+// OBSOLETE simple because they're physically done off the stack pointer,
+// OBSOLETE and thus the number of different instructions we need to
+// OBSOLETE check is greatly reduced because we know the displacements
+// OBSOLETE will be small.
+// OBSOLETE
+// OBSOLETE Search for movx d2,(X,a3) (0xf55eXX)
+// OBSOLETE then movx d3,(X,a3) (0xf55fXX)
+// OBSOLETE then mov a1,(X,a3) (0x5dXX) No frame pointer case
+// OBSOLETE then mov a2,(X,a3) (0x5eXX) No frame pointer case
+// OBSOLETE or mov a0,(X,a3) (0x5cXX) Frame pointer case. */
+// OBSOLETE
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE if (buf[0] == 0xf5 && buf[1] == 0x5e)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 1);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE fi->fsr.regs[2] = (get_frame_base (fi) + stack_size
+// OBSOLETE + extract_signed_integer (buf, 1));
+// OBSOLETE }
+// OBSOLETE addr += 3;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE return addr;
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE if (buf[0] == 0xf5 && buf[1] == 0x5f)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 2, buf, 1);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE fi->fsr.regs[3] = (get_frame_base (fi) + stack_size
+// OBSOLETE + extract_signed_integer (buf, 1));
+// OBSOLETE }
+// OBSOLETE addr += 3;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE return addr;
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE if (buf[0] == 0x5d)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 1, buf, 1);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE fi->fsr.regs[5] = (get_frame_base (fi) + stack_size
+// OBSOLETE + extract_signed_integer (buf, 1));
+// OBSOLETE }
+// OBSOLETE addr += 2;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE return addr;
+// OBSOLETE status = target_read_memory (addr, buf, 2);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE if (buf[0] == 0x5e || buf[0] == 0x5c)
+// OBSOLETE {
+// OBSOLETE if (fi)
+// OBSOLETE {
+// OBSOLETE status = target_read_memory (addr + 1, buf, 1);
+// OBSOLETE if (status != 0)
+// OBSOLETE return addr;
+// OBSOLETE fi->fsr.regs[6] = (get_frame_base (fi) + stack_size
+// OBSOLETE + extract_signed_integer (buf, 1));
+// OBSOLETE fi->status &= ~CALLER_A2_IN_A0;
+// OBSOLETE }
+// OBSOLETE addr += 2;
+// OBSOLETE if (addr >= stop)
+// OBSOLETE return addr;
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE return addr;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: frame_chain
+// OBSOLETE Figure out and return the caller's frame pointer given current
+// OBSOLETE frame_info struct.
+// OBSOLETE
+// OBSOLETE We don't handle dummy frames yet but we would probably just return the
+// OBSOLETE stack pointer that was in use at the time the function call was made? */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_frame_chain (struct frame_info *fi)
+// OBSOLETE {
+// OBSOLETE struct frame_info *dummy_frame = deprecated_frame_xmalloc ();
+// OBSOLETE struct cleanup *old_chain = make_cleanup (xfree, dummy_frame);
+// OBSOLETE CORE_ADDR ret;
+// OBSOLETE
+// OBSOLETE /* Walk through the prologue to determine the stack size,
+// OBSOLETE location of saved registers, end of the prologue, etc. */
+// OBSOLETE if (fi->status == 0)
+// OBSOLETE mn10200_analyze_prologue (fi, (CORE_ADDR) 0);
+// OBSOLETE
+// OBSOLETE /* Quit now if mn10200_analyze_prologue set NO_MORE_FRAMES. */
+// OBSOLETE if (fi->status & NO_MORE_FRAMES)
+// OBSOLETE return 0;
+// OBSOLETE
+// OBSOLETE /* Now that we've analyzed our prologue, determine the frame
+// OBSOLETE pointer for our caller.
+// OBSOLETE
+// OBSOLETE If our caller has a frame pointer, then we need to
+// OBSOLETE find the entry value of $a2 to our function.
+// OBSOLETE
+// OBSOLETE If CALLER_A2_IN_A0, then the chain is in $a0.
+// OBSOLETE
+// OBSOLETE If fsr.regs[6] is nonzero, then it's at the memory
+// OBSOLETE location pointed to by fsr.regs[6].
+// OBSOLETE
+// OBSOLETE Else it's still in $a2.
+// OBSOLETE
+// OBSOLETE If our caller does not have a frame pointer, then his
+// OBSOLETE frame base is fi->frame + -caller's stack size + 4. */
+// OBSOLETE
+// OBSOLETE /* The easiest way to get that info is to analyze our caller's frame.
+// OBSOLETE
+// OBSOLETE So we set up a dummy frame and call mn10200_analyze_prologue to
+// OBSOLETE find stuff for us. */
+// OBSOLETE deprecated_update_frame_pc_hack (dummy_frame, FRAME_SAVED_PC (fi));
+// OBSOLETE deprecated_update_frame_base_hack (dummy_frame, get_frame_base (fi));
+// OBSOLETE memset (dummy_frame->fsr.regs, '\000', sizeof dummy_frame->fsr.regs);
+// OBSOLETE dummy_frame->status = 0;
+// OBSOLETE dummy_frame->stack_size = 0;
+// OBSOLETE mn10200_analyze_prologue (dummy_frame, 0);
+// OBSOLETE
+// OBSOLETE if (dummy_frame->status & MY_FRAME_IN_FP)
+// OBSOLETE {
+// OBSOLETE /* Our caller has a frame pointer. So find the frame in $a2, $a0,
+// OBSOLETE or in the stack. */
+// OBSOLETE if (fi->fsr.regs[6])
+// OBSOLETE ret = (read_memory_integer (fi->fsr.regs[FP_REGNUM], REGISTER_SIZE)
+// OBSOLETE & 0xffffff);
+// OBSOLETE else if (fi->status & CALLER_A2_IN_A0)
+// OBSOLETE ret = read_register (4);
+// OBSOLETE else
+// OBSOLETE ret = read_register (FP_REGNUM);
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE /* Our caller does not have a frame pointer. So his frame starts
+// OBSOLETE at the base of our frame (fi->frame) + <his size> + 4 (saved pc). */
+// OBSOLETE ret = get_frame_base (fi) + -dummy_frame->stack_size + 4;
+// OBSOLETE }
+// OBSOLETE do_cleanups (old_chain);
+// OBSOLETE return ret;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: skip_prologue
+// OBSOLETE Return the address of the first inst past the prologue of the function. */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_skip_prologue (CORE_ADDR pc)
+// OBSOLETE {
+// OBSOLETE /* We used to check the debug symbols, but that can lose if
+// OBSOLETE we have a null prologue. */
+// OBSOLETE return mn10200_analyze_prologue (NULL, pc);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: pop_frame
+// OBSOLETE This routine gets called when either the user uses the `return'
+// OBSOLETE command, or the call dummy breakpoint gets hit. */
+// OBSOLETE
+// OBSOLETE void
+// OBSOLETE mn10200_pop_frame (struct frame_info *frame)
+// OBSOLETE {
+// OBSOLETE int regnum;
+// OBSOLETE
+// OBSOLETE if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame),
+// OBSOLETE get_frame_base (frame),
+// OBSOLETE get_frame_base (frame)))
+// OBSOLETE generic_pop_dummy_frame ();
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
+// OBSOLETE
+// OBSOLETE /* Restore any saved registers. */
+// OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++)
+// OBSOLETE if (frame->fsr.regs[regnum] != 0)
+// OBSOLETE {
+// OBSOLETE ULONGEST value;
+// OBSOLETE
+// OBSOLETE value = read_memory_unsigned_integer (frame->fsr.regs[regnum],
+// OBSOLETE REGISTER_RAW_SIZE (regnum));
+// OBSOLETE write_register (regnum, value);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Actually cut back the stack. */
+// OBSOLETE write_register (SP_REGNUM, get_frame_base (frame));
+// OBSOLETE
+// OBSOLETE /* Don't we need to set the PC?!? XXX FIXME. */
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Throw away any cached frame information. */
+// OBSOLETE flush_cached_frames ();
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: push_arguments
+// OBSOLETE Setup arguments for a call to the target. Arguments go in
+// OBSOLETE order on the stack. */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
+// OBSOLETE unsigned char struct_return, CORE_ADDR struct_addr)
+// OBSOLETE {
+// OBSOLETE int argnum = 0;
+// OBSOLETE int len = 0;
+// OBSOLETE int stack_offset = 0;
+// OBSOLETE int regsused = struct_return ? 1 : 0;
+// OBSOLETE
+// OBSOLETE /* This should be a nop, but align the stack just in case something
+// OBSOLETE went wrong. Stacks are two byte aligned on the mn10200. */
+// OBSOLETE sp &= ~1;
+// OBSOLETE
+// OBSOLETE /* Now make space on the stack for the args.
+// OBSOLETE
+// OBSOLETE XXX This doesn't appear to handle pass-by-invisible reference
+// OBSOLETE arguments. */
+// OBSOLETE for (argnum = 0; argnum < nargs; argnum++)
+// OBSOLETE {
+// OBSOLETE int arg_length = (TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 1) & ~1;
+// OBSOLETE
+// OBSOLETE /* If we've used all argument registers, then this argument is
+// OBSOLETE pushed. */
+// OBSOLETE if (regsused >= 2 || arg_length > 4)
+// OBSOLETE {
+// OBSOLETE regsused = 2;
+// OBSOLETE len += arg_length;
+// OBSOLETE }
+// OBSOLETE /* We know we've got some arg register space left. If this argument
+// OBSOLETE will fit entirely in regs, then put it there. */
+// OBSOLETE else if (arg_length <= 2
+// OBSOLETE || TYPE_CODE (VALUE_TYPE (args[argnum])) == TYPE_CODE_PTR)
+// OBSOLETE {
+// OBSOLETE regsused++;
+// OBSOLETE }
+// OBSOLETE else if (regsused == 0)
+// OBSOLETE {
+// OBSOLETE regsused = 2;
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE regsused = 2;
+// OBSOLETE len += arg_length;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Allocate stack space. */
+// OBSOLETE sp -= len;
+// OBSOLETE
+// OBSOLETE regsused = struct_return ? 1 : 0;
+// OBSOLETE /* Push all arguments onto the stack. */
+// OBSOLETE for (argnum = 0; argnum < nargs; argnum++)
+// OBSOLETE {
+// OBSOLETE int len;
+// OBSOLETE char *val;
+// OBSOLETE
+// OBSOLETE /* XXX Check this. What about UNIONS? */
+// OBSOLETE if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT
+// OBSOLETE && TYPE_LENGTH (VALUE_TYPE (*args)) > 8)
+// OBSOLETE {
+// OBSOLETE /* XXX Wrong, we want a pointer to this argument. */
+// OBSOLETE len = TYPE_LENGTH (VALUE_TYPE (*args));
+// OBSOLETE val = (char *) VALUE_CONTENTS (*args);
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE len = TYPE_LENGTH (VALUE_TYPE (*args));
+// OBSOLETE val = (char *) VALUE_CONTENTS (*args);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE if (regsused < 2
+// OBSOLETE && (len <= 2
+// OBSOLETE || TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_PTR))
+// OBSOLETE {
+// OBSOLETE write_register (regsused, extract_unsigned_integer (val, 4));
+// OBSOLETE regsused++;
+// OBSOLETE }
+// OBSOLETE else if (regsused == 0 && len == 4)
+// OBSOLETE {
+// OBSOLETE write_register (regsused, extract_unsigned_integer (val, 2));
+// OBSOLETE write_register (regsused + 1, extract_unsigned_integer (val + 2, 2));
+// OBSOLETE regsused = 2;
+// OBSOLETE }
+// OBSOLETE else
+// OBSOLETE {
+// OBSOLETE regsused = 2;
+// OBSOLETE while (len > 0)
+// OBSOLETE {
+// OBSOLETE write_memory (sp + stack_offset, val, 2);
+// OBSOLETE
+// OBSOLETE len -= 2;
+// OBSOLETE val += 2;
+// OBSOLETE stack_offset += 2;
+// OBSOLETE }
+// OBSOLETE }
+// OBSOLETE args++;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE return sp;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: push_return_address (pc)
+// OBSOLETE Set up the return address for the inferior function call.
+// OBSOLETE Needed for targets where we don't actually execute a JSR/BSR instruction */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
+// OBSOLETE {
+// OBSOLETE unsigned char buf[4];
+// OBSOLETE
+// OBSOLETE store_unsigned_integer (buf, 4, CALL_DUMMY_ADDRESS ());
+// OBSOLETE write_memory (sp - 4, buf, 4);
+// OBSOLETE return sp - 4;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: store_struct_return (addr,sp)
+// OBSOLETE Store the structure value return address for an inferior function
+// OBSOLETE call. */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
+// OBSOLETE {
+// OBSOLETE /* The structure return address is passed as the first argument. */
+// OBSOLETE write_register (0, addr);
+// OBSOLETE return sp;
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: frame_saved_pc
+// OBSOLETE Find the caller of this frame. We do this by seeing if RP_REGNUM
+// OBSOLETE is saved in the stack anywhere, otherwise we get it from the
+// OBSOLETE registers. If the inner frame is a dummy frame, return its PC
+// OBSOLETE instead of RP, because that's where "caller" of the dummy-frame
+// OBSOLETE will be found. */
+// OBSOLETE
+// OBSOLETE CORE_ADDR
+// OBSOLETE mn10200_frame_saved_pc (struct frame_info *fi)
+// OBSOLETE {
+// OBSOLETE /* The saved PC will always be at the base of the current frame. */
+// OBSOLETE return (read_memory_integer (get_frame_base (fi), REGISTER_SIZE) & 0xffffff);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE /* Function: init_extra_frame_info
+// OBSOLETE Setup the frame's frame pointer, pc, and frame addresses for saved
+// OBSOLETE registers. Most of the work is done in mn10200_analyze_prologue().
+// OBSOLETE
+// OBSOLETE Note that when we are called for the last frame (currently active frame),
+// OBSOLETE that get_frame_pc (fi) and fi->frame will already be setup. However, fi->frame will
+// OBSOLETE be valid only if this routine uses FP. For previous frames, fi-frame will
+// OBSOLETE always be correct. mn10200_analyze_prologue will fix fi->frame if
+// OBSOLETE it's not valid.
+// OBSOLETE
+// OBSOLETE We can be called with the PC in the call dummy under two circumstances.
+// OBSOLETE First, during normal backtracing, second, while figuring out the frame
+// OBSOLETE pointer just prior to calling the target function (see run_stack_dummy). */
+// OBSOLETE
+// OBSOLETE void
+// OBSOLETE mn10200_init_extra_frame_info (struct frame_info *fi)
+// OBSOLETE {
+// OBSOLETE if (get_next_frame (fi))
+// OBSOLETE deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (get_next_frame (fi)));
+// OBSOLETE
+// OBSOLETE memset (fi->fsr.regs, '\000', sizeof fi->fsr.regs);
+// OBSOLETE fi->status = 0;
+// OBSOLETE fi->stack_size = 0;
+// OBSOLETE
+// OBSOLETE mn10200_analyze_prologue (fi, 0);
+// OBSOLETE }
+// OBSOLETE
+// OBSOLETE void
+// OBSOLETE _initialize_mn10200_tdep (void)
+// OBSOLETE {
+// OBSOLETE tm_print_insn = print_insn_mn10200;
+// OBSOLETE }
projects / deliverable / binutils-gdb.git / blobdiff