-/* Target-dependent code for Mitsubishi D30V, for GDB.
- Copyright (C) 1996, 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. */
-
-/* Contributed by Martin Hunt, hunt@cygnus.com */
-
-#include "defs.h"
-#include "frame.h"
-#include "obstack.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "gdbcmd.h"
-#include "gdbcore.h"
-#include "gdb_string.h"
-#include "value.h"
-#include "inferior.h"
-#include "dis-asm.h"
-#include "symfile.h"
-#include "objfiles.h"
-
-void d30v_frame_find_saved_regs PARAMS ((struct frame_info *fi,
- struct frame_saved_regs *fsr));
-static void d30v_pop_dummy_frame PARAMS ((struct frame_info *fi));
-static void d30v_print_flags PARAMS ((void));
-static void print_flags_command PARAMS ((char *, int));
-
-/* the following defines assume:
- fp is r61, lr is r62, sp is r63, and ?? is r22
- if that changes, they will need to be updated */
-
-#define OP_MASK_ALL_BUT_RA 0x0ffc0fff /* throw away Ra, keep the rest */
-
-#define OP_STW_SPM 0x054c0fc0 /* stw Ra, @(sp-) */
-#define OP_STW_SP_R0 0x05400fc0 /* stw Ra, @(sp,r0) */
-#define OP_STW_SP_IMM0 0x05480fc0 /* st Ra, @(sp, 0x0) */
-#define OP_STW_R22P_R0 0x05440580 /* stw Ra, @(r22+,r0) */
-
-#define OP_ST2W_SPM 0x056c0fc0 /* st2w Ra, @(sp-) */
-#define OP_ST2W_SP_R0 0x05600fc0 /* st2w Ra, @(sp, r0) */
-#define OP_ST2W_SP_IMM0 0x05680fc0 /* st2w Ra, @(sp, 0x0) */
-#define OP_ST2W_R22P_R0 0x05640580 /* st2w Ra, @(r22+, r0) */
-
-#define OP_MASK_OPCODE 0x0ffc0000 /* just the opcode, ign operands */
-#define OP_NOP 0x00f00000 /* nop */
-
-#define OP_MASK_ALL_BUT_IMM 0x0fffffc0 /* throw away imm, keep the rest */
-#define OP_SUB_SP_IMM 0x082bffc0 /* sub sp,sp,imm */
-#define OP_ADD_SP_IMM 0x080bffc0 /* add sp,sp,imm */
-#define OP_ADD_R22_SP_IMM 0x08096fc0 /* add r22,sp,imm */
-#define OP_STW_FP_SP_IMM 0x054bdfc0 /* stw fp,@(sp,imm) */
-
-/* no mask */
-#define OP_OR_FP_R0_SP 0x03a3d03f /* or fp,r0,sp */
-#define OP_OR_FP_SP_R0 0x03a3dfc0 /* or fp,sp,r0 */
-#define OP_OR_FP_IMM0_SP 0x03abd03f /* or fp,0x0,sp */
-#define OP_STW_FP_R22P_R0 0x0547d580 /* stw fp,@(r22+,r0) */
-#define OP_STW_LR_R22P_R0 0x0547e580 /* stw lr,@(r22+,r0) */
-
-#define OP_MASK_OP_AND_RB 0x0ff80fc0 /* keep op and rb,throw away rest */
-#define OP_STW_SP_IMM 0x05480fc0 /* stw Ra,@(sp,imm) */
-#define OP_ST2W_SP_IMM 0x05680fc0 /* st2w Ra,@(sp,imm) */
-#define OP_STW_FP_IMM 0x05480f40 /* stw Ra,@(fp,imm) */
-#define OP_STW_FP_R0 0x05400f40 /* stw Ra,@(fp,r0) */
-
-#define OP_MASK_FM_BIT 0x80000000
-#define OP_MASK_CC_BITS 0x70000000
-#define OP_MASK_SUB_INST 0x0fffffff
-
-#define EXTRACT_RA(op) (((op) >> 12) & 0x3f)
-#define EXTRACT_RB(op) (((op) >> 6) & 0x3f)
-#define EXTRACT_RC(op) (((op) & 0x3f)
-#define EXTRACT_UIMM6(op) ((op) & 0x3f)
-#define EXTRACT_IMM6(op) ((((int)EXTRACT_UIMM6(op)) << 26) >> 26)
-#define EXTRACT_IMM26(op) ((((op)&0x0ff00000) >> 2) | ((op)&0x0003ffff))
-#define EXTRACT_IMM32(opl, opr) ((EXTRACT_UIMM6(opl) << 26)|EXTRACT_IMM26(opr))
-
-/* Discard from the stack the innermost frame, restoring all saved
- registers. */
-
-void
-d30v_pop_frame ()
-{
- struct frame_info *frame = get_current_frame ();
- CORE_ADDR fp;
- int regnum;
- struct frame_saved_regs fsr;
- char raw_buffer[8];
-
- fp = FRAME_FP (frame);
- if (frame->dummy)
- {
- d30v_pop_dummy_frame(frame);
- return;
- }
-
- /* fill out fsr with the address of where each */
- /* register was stored in the frame */
- get_frame_saved_regs (frame, &fsr);
-
- /* now update the current registers with the old values */
- for (regnum = A0_REGNUM; regnum < A0_REGNUM+2 ; regnum++)
- {
- if (fsr.regs[regnum])
- {
- read_memory (fsr.regs[regnum], raw_buffer, 8);
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 8);
- }
- }
- for (regnum = 0; regnum < SP_REGNUM; regnum++)
- {
- if (fsr.regs[regnum])
- {
- write_register (regnum, read_memory_unsigned_integer (fsr.regs[regnum], 4));
- }
- }
- if (fsr.regs[PSW_REGNUM])
- {
- write_register (PSW_REGNUM, read_memory_unsigned_integer (fsr.regs[PSW_REGNUM], 4));
- }
-
- write_register (PC_REGNUM, read_register(LR_REGNUM));
- write_register (SP_REGNUM, fp + frame->size);
- target_store_registers (-1);
- flush_cached_frames ();
-}
-
-static int
-check_prologue (op)
- unsigned long op;
-{
- /* add sp,sp,imm -- observed */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM)
- return 1;
-
- /* add r22,sp,imm -- observed */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM)
- return 1;
-
- /* or fp,r0,sp -- observed */
- if (op == OP_OR_FP_R0_SP)
- return 1;
-
- /* nop */
- if ((op & OP_MASK_OPCODE) == OP_NOP)
- return 1;
-
- /* stw Ra,@(sp,r0) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0)
- return 1;
-
- /* stw Ra,@(sp,0x0) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0)
- return 1;
-
- /* st2w Ra,@(sp,r0) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0)
- return 1;
-
- /* st2w Ra,@(sp,0x0) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0)
- return 1;
-
- /* stw fp, @(r22+,r0) -- observed */
- if (op == OP_STW_FP_R22P_R0)
- return 1;
-
- /* stw r62, @(r22+,r0) -- observed */
- if (op == OP_STW_LR_R22P_R0)
- return 1;
-
- /* stw Ra, @(fp,r0) -- observed */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0)
- return 1; /* first arg */
-
- /* stw Ra, @(fp,imm) -- observed */
- if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM)
- return 1; /* second and subsequent args */
-
- /* stw fp,@(sp,imm) -- observed */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_STW_FP_SP_IMM)
- return 1;
-
- /* st2w Ra,@(r22+,r0) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0)
- return 1;
-
- /* stw Ra, @(sp-) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM)
- return 1;
-
- /* st2w Ra, @(sp-) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM)
- return 1;
-
- /* sub.? sp,sp,imm */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM)
- return 1;
-
- return 0;
-}
-
-CORE_ADDR
-d30v_skip_prologue (pc)
- CORE_ADDR pc;
-{
- unsigned long op[2];
- unsigned long opl, opr; /* left / right sub operations */
- unsigned long fm0, fm1; /* left / right mode bits */
- unsigned long cc0, cc1;
- unsigned long op1, op2;
- CORE_ADDR func_addr, func_end;
- struct symtab_and_line sal;
-
- /* If we have line debugging information, then the end of the */
- /* prologue should the first assembly instruction of the first source line */
- if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
- {
- sal = find_pc_line (func_addr, 0);
- if ( sal.end && sal.end < func_end)
- return sal.end;
- }
-
- if (target_read_memory (pc, (char *)&op[0], 8))
- return pc; /* Can't access it -- assume no prologue. */
-
- while (1)
- {
- opl = (unsigned long)read_memory_integer (pc, 4);
- opr = (unsigned long)read_memory_integer (pc+4, 4);
-
- fm0 = (opl & OP_MASK_FM_BIT);
- fm1 = (opr & OP_MASK_FM_BIT);
-
- cc0 = (opl & OP_MASK_CC_BITS);
- cc1 = (opr & OP_MASK_CC_BITS);
-
- opl = (opl & OP_MASK_SUB_INST);
- opr = (opr & OP_MASK_SUB_INST);
-
- if (fm0 && fm1)
- {
- /* long instruction (opl contains the opcode) */
- if (((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_SP_IMM) && /* add sp,sp,imm */
- ((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_R22_SP_IMM) && /* add r22,sp,imm */
- ((opl & OP_MASK_OP_AND_RB) != OP_STW_SP_IMM) && /* stw Ra, @(sp,imm) */
- ((opl & OP_MASK_OP_AND_RB) != OP_ST2W_SP_IMM)) /* st2w Ra, @(sp,imm) */
- break;
- }
- else
- {
- /* short instructions */
- if (fm0 && !fm1)
- {
- op1 = opr;
- op2 = opl;
- }
- else
- {
- op1 = opl;
- op2 = opr;
- }
- if (check_prologue(op1))
- {
- if (!check_prologue(op2))
- {
- /* if the previous opcode was really part of the prologue */
- /* and not just a NOP, then we want to break after both instructions */
- if ((op1 & OP_MASK_OPCODE) != OP_NOP)
- pc += 8;
- break;
- }
- }
- else
- break;
- }
- pc += 8;
- }
- return pc;
-}
-
-/* Given a GDB frame, determine the address of the calling function's frame.
- This will be used to create a new GDB frame struct, and then
- INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
-*/
-
-CORE_ADDR
-d30v_frame_chain (frame)
- struct frame_info *frame;
-{
- struct frame_saved_regs fsr;
-
- d30v_frame_find_saved_regs (frame, &fsr);
-
- if (frame->return_pc == IMEM_START)
- return (CORE_ADDR)0;
-
- if (!fsr.regs[FP_REGNUM])
- {
- if (!fsr.regs[SP_REGNUM] || fsr.regs[SP_REGNUM] == STACK_START)
- return (CORE_ADDR)0;
-
- return fsr.regs[SP_REGNUM];
- }
-
- if (!read_memory_unsigned_integer(fsr.regs[FP_REGNUM],4))
- return (CORE_ADDR)0;
-
- return read_memory_unsigned_integer(fsr.regs[FP_REGNUM],4)| DMEM_START;
-}
-
-static int next_addr, uses_frame;
-static int frame_size;
-
-static int
-prologue_find_regs (op, fsr, addr)
- unsigned long op;
- struct frame_saved_regs *fsr;
- CORE_ADDR addr;
-{
- int n;
- int offset;
-
- /* add sp,sp,imm -- observed */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM)
- {
- offset = EXTRACT_IMM6(op);
- /*next_addr += offset;*/
- frame_size += -offset;
- return 1;
- }
-
- /* add r22,sp,imm -- observed */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM)
- {
- offset = EXTRACT_IMM6(op);
- next_addr = (offset - frame_size);
- return 1;
- }
-
- /* stw Ra, @(fp, offset) -- observed */
- if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM)
- {
- n = EXTRACT_RA(op);
- offset = EXTRACT_IMM6(op);
- fsr->regs[n] = (offset - frame_size);
- return 1;
- }
-
- /* stw Ra, @(fp, r0) -- observed */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0)
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = (- frame_size);
- return 1;
- }
-
- /* or fp,0,sp -- observed */
- if ((op == OP_OR_FP_R0_SP) ||
- (op == OP_OR_FP_SP_R0) ||
- (op == OP_OR_FP_IMM0_SP))
- {
- uses_frame = 1;
- return 1;
- }
-
- /* nop */
- if ((op & OP_MASK_OPCODE) == OP_NOP)
- return 1;
-
- /* stw Ra,@(r22+,r0) -- observed */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_R22P_R0)
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- next_addr += 4;
- return 1;
- }
-#if 0 /* subsumed in pattern above */
- /* stw fp,@(r22+,r0) -- observed */
- if (op == OP_STW_FP_R22P_R0)
- {
- fsr->regs[FP_REGNUM] = next_addr; /* XXX */
- next_addr += 4;
- return 1;
- }
-
- /* stw r62,@(r22+,r0) -- observed */
- if (op == OP_STW_LR_R22P_R0)
- {
- fsr->regs[LR_REGNUM] = next_addr;
- next_addr += 4;
- return 1;
- }
-#endif
- /* st2w Ra,@(r22+,r0) -- observed */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0)
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- fsr->regs[n+1] = next_addr + 4;
- next_addr += 8;
- return 1;
- }
-
- /* stw rn, @(sp-) */
- if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM)
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- next_addr -= 4;
- return 1;
- }
-
- /* st2w Ra, @(sp-) */
- else if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM)
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- fsr->regs[n+1] = next_addr+4;
- next_addr -= 8;
- return 1;
- }
-
- /* sub sp,sp,imm */
- if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM)
- {
- offset = EXTRACT_IMM6(op);
- next_addr -= offset;
- return 1;
- }
-
- /* st rn, @(sp,0) */
- if (((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0) ||
- ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0))
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- return 1;
- }
-
- /* st2w rn, @(sp,0) */
- if (((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0) ||
- ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0))
- {
- n = EXTRACT_RA(op);
- fsr->regs[n] = next_addr;
- fsr->regs[n+1] = next_addr+4;
- return 1;
- }
-
- return 0;
-}
-
-/* Put here the code to store, into a struct frame_saved_regs, the
- addresses of the saved registers of frame described by FRAME_INFO.
- This includes special registers such as pc and fp saved in special
- ways in the stack frame. sp is even more special: the address we
- return for it IS the sp for the next frame. */
-void
-d30v_frame_find_saved_regs (fi, fsr)
- struct frame_info *fi;
- struct frame_saved_regs *fsr;
-{
- CORE_ADDR fp, pc;
- unsigned long opl, opr;
- unsigned long op1, op2;
- unsigned long fm0, fm1;
- int i;
-
- fp = fi->frame;
- memset (fsr, 0, sizeof (*fsr));
- next_addr = 0;
- frame_size = 0;
-
- pc = get_pc_function_start (fi->pc);
-
- uses_frame = 0;
- while (1)
- {
- opl = (unsigned long)read_memory_integer (pc, 4);
- opr = (unsigned long)read_memory_integer (pc+4, 4);
-
- fm0 = (opl & OP_MASK_FM_BIT);
- fm1 = (opr & OP_MASK_FM_BIT);
-
- opl = (opl & OP_MASK_SUB_INST);
- opr = (opr & OP_MASK_SUB_INST);
-
- if (fm0 && fm1)
- {
- /* long instruction */
- if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM)
- {
- /* add sp,sp,n */
- long offset = EXTRACT_IMM32(opl, opr);
- frame_size += -offset;
- }
- else if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM)
- {
- /* add r22,sp,offset */
- long offset = EXTRACT_IMM32(opl,opr);
- next_addr = (offset - frame_size);
- }
- else if ((opl & OP_MASK_OP_AND_RB) == OP_STW_SP_IMM)
- {
- /* st Ra, @(sp,imm) */
- long offset = EXTRACT_IMM32(opl, opr);
- short n = EXTRACT_RA(opl);
- fsr->regs[n] = (offset - frame_size);
- }
- else if ((opl & OP_MASK_OP_AND_RB) == OP_ST2W_SP_IMM)
- {
- /* st2w Ra, @(sp,offset) */
- long offset = EXTRACT_IMM32(opl, opr);
- short n = EXTRACT_RA(opl);
- fsr->regs[n] = (offset - frame_size);
- fsr->regs[n+1] = (offset - frame_size) + 4;
- }
- else
- break;
- }
- else
- {
- /* short instructions */
- if (fm0 && !fm1)
- {
- op2 = opl;
- op1 = opr;
- }
- else
- {
- op1 = opl;
- op2 = opr;
- }
- if (!prologue_find_regs(op1,fsr,pc) || !prologue_find_regs(op2,fsr,pc))
- break;
- }
- pc += 8;
- }
-
- fi->size = frame_size;
- if (!fp)
-#if 0
- fp = read_register(SP_REGNUM) | DMEM_START;
-#else
- fp = read_register(SP_REGNUM);
-#endif
- for (i=0; i<NUM_REGS-1; i++)
- if (fsr->regs[i])
- {
- fsr->regs[i] = fsr->regs[i] + fp + frame_size;
- }
-
- if (fsr->regs[LR_REGNUM])
- fi->return_pc = read_memory_unsigned_integer(fsr->regs[LR_REGNUM],4);
- else
- fi->return_pc = read_register(LR_REGNUM);
-
- /* th SP is not normally (ever?) saved, but check anyway */
- if (!fsr->regs[SP_REGNUM])
- {
- /* if the FP was saved, that means the current FP is valid, */
- /* otherwise, it isn't being used, so we use the SP instead */
- if (uses_frame)
- fsr->regs[SP_REGNUM] = read_register(FP_REGNUM) + fi->size;
- else
- {
- fsr->regs[SP_REGNUM] = fp + fi->size;
- fi->frameless = 1;
- fsr->regs[FP_REGNUM] = 0;
- }
- }
-}
-
-void
-d30v_init_extra_frame_info (fromleaf, fi)
- int fromleaf;
- struct frame_info *fi;
-{
- struct frame_saved_regs dummy;
-
- if (fi->next && (fi->pc == 0))
- fi->pc = fi->next->return_pc;
-
- d30v_frame_find_saved_regs (fi, &dummy);
-}
-
-void
-d30v_init_frame_pc (fromleaf, prev)
- int fromleaf;
- struct frame_info *prev;
-{
- /* default value, put here so we can breakpoint on it and
- see if the default value is really the right thing to use */
- prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
- prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
-}
-
-static void d30v_print_register PARAMS ((int regnum, int tabular));
-
-static void
-d30v_print_register (regnum, tabular)
- int regnum;
- int tabular;
-{
- if (regnum < A0_REGNUM)
- {
- if (tabular)
- printf_filtered ("%08x", read_register (regnum));
- else
- printf_filtered ("0x%x %d", read_register (regnum),
- read_register (regnum));
- }
- else
- {
- char regbuf[MAX_REGISTER_RAW_SIZE];
-
- read_relative_register_raw_bytes (regnum, regbuf);
-
- val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0,
- gdb_stdout, 'x', 1, 0, Val_pretty_default);
-
- if (!tabular)
- {
- printf_filtered (" ");
- val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0,
- gdb_stdout, 'd', 1, 0, Val_pretty_default);
- }
- }
-}
-
-static void
-d30v_print_flags ()
-{
- long psw = read_register (PSW_REGNUM);
- printf_filtered ("flags #1");
- printf_filtered (" (sm) %d", (psw & PSW_SM) != 0);
- printf_filtered (" (ea) %d", (psw & PSW_EA) != 0);
- printf_filtered (" (db) %d", (psw & PSW_DB) != 0);
- printf_filtered (" (ds) %d", (psw & PSW_DS) != 0);
- printf_filtered (" (ie) %d", (psw & PSW_IE) != 0);
- printf_filtered (" (rp) %d", (psw & PSW_RP) != 0);
- printf_filtered (" (md) %d\n", (psw & PSW_MD) != 0);
-
- printf_filtered ("flags #2");
- printf_filtered (" (f0) %d", (psw & PSW_F0) != 0);
- printf_filtered (" (f1) %d", (psw & PSW_F1) != 0);
- printf_filtered (" (f2) %d", (psw & PSW_F2) != 0);
- printf_filtered (" (f3) %d", (psw & PSW_F3) != 0);
- printf_filtered (" (s) %d", (psw & PSW_S) != 0);
- printf_filtered (" (v) %d", (psw & PSW_V) != 0);
- printf_filtered (" (va) %d", (psw & PSW_VA) != 0);
- printf_filtered (" (c) %d\n", (psw & PSW_C) != 0);
-}
-
-static void
-print_flags_command (args, from_tty)
- char *args;
- int from_tty;
-{
- d30v_print_flags ();
-}
-
-void
-d30v_do_registers_info (regnum, fpregs)
- int regnum;
- int fpregs;
-{
- long long num1, num2;
- long psw;
-
- if (regnum != -1)
- {
- if (reg_names[0] == NULL || reg_names[0][0] == '\000')
- return;
-
- printf_filtered ("%s ", reg_names[regnum]);
- d30v_print_register (regnum, 0);
-
- printf_filtered ("\n");
- return;
- }
-
- /* Have to print all the registers. Format them nicely. */
-
- printf_filtered ("PC=");
- print_address (read_pc (), gdb_stdout);
-
- printf_filtered (" PSW=");
- d30v_print_register (PSW_REGNUM, 1);
-
- printf_filtered (" BPC=");
- print_address (read_register (BPC_REGNUM), gdb_stdout);
-
- printf_filtered (" BPSW=");
- d30v_print_register (BPSW_REGNUM, 1);
- printf_filtered ("\n");
-
- printf_filtered ("DPC=");
- print_address (read_register (DPC_REGNUM), gdb_stdout);
-
- printf_filtered (" DPSW=");
- d30v_print_register (DPSW_REGNUM, 1);
-
- printf_filtered (" IBA=");
- print_address (read_register (IBA_REGNUM), gdb_stdout);
- printf_filtered ("\n");
-
- printf_filtered ("RPT_C=");
- d30v_print_register (RPT_C_REGNUM, 1);
-
- printf_filtered (" RPT_S=");
- print_address (read_register (RPT_S_REGNUM), gdb_stdout);
-
- printf_filtered (" RPT_E=");
- print_address (read_register (RPT_E_REGNUM), gdb_stdout);
- printf_filtered ("\n");
-
- printf_filtered ("MOD_S=");
- print_address (read_register (MOD_S_REGNUM), gdb_stdout);
-
- printf_filtered (" MOD_E=");
- print_address (read_register (MOD_E_REGNUM), gdb_stdout);
- printf_filtered ("\n");
-
- printf_filtered ("EIT_VB=");
- print_address (read_register (EIT_VB_REGNUM), gdb_stdout);
-
- printf_filtered (" INT_S=");
- d30v_print_register (INT_S_REGNUM, 1);
-
- printf_filtered (" INT_M=");
- d30v_print_register (INT_M_REGNUM, 1);
- printf_filtered ("\n");
-
- d30v_print_flags ();
- for (regnum = 0; regnum <= 63;)
- {
- int i;
-
- printf_filtered ("R%d-R%d ", regnum, regnum + 7);
- if (regnum < 10)
- printf_filtered (" ");
- if (regnum + 7 < 10)
- printf_filtered (" ");
-
- for (i = 0; i < 8; i++)
- {
- printf_filtered (" ");
- d30v_print_register (regnum++, 1);
- }
-
- printf_filtered ("\n");
- }
-
- printf_filtered ("A0-A1 ");
-
- d30v_print_register (A0_REGNUM, 1);
- printf_filtered (" ");
- d30v_print_register (A1_REGNUM, 1);
- printf_filtered ("\n");
-}
-
-CORE_ADDR
-d30v_fix_call_dummy (dummyname, start_sp, fun, nargs, args, type, gcc_p)
- char *dummyname;
- CORE_ADDR start_sp;
- CORE_ADDR fun;
- int nargs;
- value_ptr *args;
- struct type *type;
- int gcc_p;
-{
- int regnum;
- CORE_ADDR sp;
- char buffer[MAX_REGISTER_RAW_SIZE];
- struct frame_info *frame = get_current_frame ();
- frame->dummy = start_sp;
- /*start_sp |= DMEM_START;*/
-
- sp = start_sp;
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- {
- sp -= REGISTER_RAW_SIZE(regnum);
- store_address (buffer, REGISTER_RAW_SIZE(regnum), read_register(regnum));
- write_memory (sp, buffer, REGISTER_RAW_SIZE(regnum));
- }
- write_register (SP_REGNUM, (LONGEST)sp);
- /* now we need to load LR with the return address */
- write_register (LR_REGNUM, (LONGEST)d30v_call_dummy_address());
- return sp;
-}
-
-static void
-d30v_pop_dummy_frame (fi)
- struct frame_info *fi;
-{
- CORE_ADDR sp = fi->dummy;
- int regnum;
-
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- {
- sp -= REGISTER_RAW_SIZE(regnum);
- write_register(regnum, read_memory_unsigned_integer (sp, REGISTER_RAW_SIZE(regnum)));
- }
- flush_cached_frames (); /* needed? */
-}
-
-
-CORE_ADDR
-d30v_push_arguments (nargs, args, sp, struct_return, struct_addr)
- int nargs;
- value_ptr *args;
- CORE_ADDR sp;
- int struct_return;
- CORE_ADDR struct_addr;
-{
- int i, len, index=0, regnum=2;
- char buffer[4], *contents;
- LONGEST val;
- CORE_ADDR ptrs[10];
-
-#if 0
- /* Pass 1. Put all large args on stack */
- for (i = 0; i < nargs; i++)
- {
- value_ptr arg = args[i];
- struct type *arg_type = check_typedef (VALUE_TYPE (arg));
- len = TYPE_LENGTH (arg_type);
- contents = VALUE_CONTENTS(arg);
- val = extract_signed_integer (contents, len);
- if (len > 4)
- {
- /* put on stack and pass pointers */
- sp -= len;
- write_memory (sp, contents, len);
- ptrs[index++] = sp;
- }
- }
-#endif
- index = 0;
-
- for (i = 0; i < nargs; i++)
- {
- value_ptr arg = args[i];
- struct type *arg_type = check_typedef (VALUE_TYPE (arg));
- len = TYPE_LENGTH (arg_type);
- contents = VALUE_CONTENTS(arg);
- val = extract_signed_integer (contents, len);
- if (len > 4)
- {
- /* we need multiple registers */
- int ndx;
-
- for (ndx = 0; ndx < len; ndx += 4, len -= 4)
- {
- if (regnum < 18)
- {
- if (len > 4)
- val = extract_signed_integer (&contents[ndx], 4);
- else
- val = extract_signed_integer (&contents[ndx], len);
-
- write_register (regnum++, val);
- }
- else
- {
- /* no more registers available. put it on the stack */
- sp -= len;
- write_memory (sp, &contents[ndx], len);
- break;
- }
- }
- }
- else
- {
- if (regnum < 18 )
- {
- write_register (regnum++, val);
- }
- else
- {
- sp -= len;
- store_address (buffer, len, val);
- write_memory (sp, buffer, len);
- }
- }
- }
- return sp;
-}
-
-
-/* pick an out-of-the-way place to set the return value */
-/* for an inferior function call. The link register is set to this */
-/* value and a momentary breakpoint is set there. When the breakpoint */
-/* is hit, the dummy frame is popped and the previous environment is */
-/* restored. */
-
-CORE_ADDR
-d30v_call_dummy_address ()
-{
- CORE_ADDR entry;
- struct minimal_symbol *sym;
-
- entry = entry_point_address ();
-
- if (entry != 0)
- return entry;
-
- sym = lookup_minimal_symbol ("_start", NULL, symfile_objfile);
-
- if (!sym || MSYMBOL_TYPE (sym) != mst_text)
- return 0;
- else
- return SYMBOL_VALUE_ADDRESS (sym);
-}
-
-/* Given a return value in `regbuf' with a type `valtype',
- extract and copy its value into `valbuf'. */
-
-void
-d30v_extract_return_value (valtype, regbuf, valbuf)
- struct type *valtype;
- char regbuf[REGISTER_BYTES];
- char *valbuf;
-{
- memcpy (valbuf, regbuf + REGISTER_BYTE (2), TYPE_LENGTH (valtype));
-}
-
-/* The following code implements access to, and display of, the D30V's
- instruction trace buffer. The buffer consists of 64K or more
- 4-byte words of data, of which each words includes an 8-bit count,
- an 8-bit segment number, and a 16-bit instruction address.
-
- In theory, the trace buffer is continuously capturing instruction
- data that the CPU presents on its "debug bus", but in practice, the
- ROMified GDB stub only enables tracing when it continues or steps
- the program, and stops tracing when the program stops; so it
- actually works for GDB to read the buffer counter out of memory and
- then read each trace word. The counter records where the tracing
- stops, but there is no record of where it started, so we remember
- the PC when we resumed and then search backwards in the trace
- buffer for a word that includes that address. This is not perfect,
- because you will miss trace data if the resumption PC is the target
- of a branch. (The value of the buffer counter is semi-random, any
- trace data from a previous program stop is gone.) */
-
-/* The address of the last word recorded in the trace buffer. */
-
-#define DBBC_ADDR (0xd80000)
-
-/* The base of the trace buffer, at least for the "Board_0". */
-
-#define TRACE_BUFFER_BASE (0xf40000)
-
-static void trace_command PARAMS ((char *, int));
-
-static void untrace_command PARAMS ((char *, int));
-
-static void trace_info PARAMS ((char *, int));
-
-static void tdisassemble_command PARAMS ((char *, int));
-
-static void display_trace PARAMS ((int, int));
-
-/* True when instruction traces are being collected. */
-
-static int tracing;
-
-/* Remembered PC. */
-
-static CORE_ADDR last_pc;
-
-/* True when trace output should be displayed whenever program stops. */
-
-static int trace_display;
-
-/* True when trace listing should include source lines. */
-
-static int default_trace_show_source = 1;
-
-struct trace_buffer {
- int size;
- short *counts;
- CORE_ADDR *addrs;
-} trace_data;
-
-static void
-trace_command (args, from_tty)
- char *args;
- int from_tty;
-{
- /* Clear the host-side trace buffer, allocating space if needed. */
- trace_data.size = 0;
- if (trace_data.counts == NULL)
- trace_data.counts = (short *) xmalloc (65536 * sizeof(short));
- if (trace_data.addrs == NULL)
- trace_data.addrs = (CORE_ADDR *) xmalloc (65536 * sizeof(CORE_ADDR));
-
- tracing = 1;
-
- printf_filtered ("Tracing is now on.\n");
-}
-
-static void
-untrace_command (args, from_tty)
- char *args;
- int from_tty;
-{
- tracing = 0;
-
- printf_filtered ("Tracing is now off.\n");
-}
-
-static void
-trace_info (args, from_tty)
- char *args;
- int from_tty;
-{
- int i;
-
- if (trace_data.size)
- {
- printf_filtered ("%d entries in trace buffer:\n", trace_data.size);
-
- for (i = 0; i < trace_data.size; ++i)
- {
- printf_filtered ("%d: %d instruction%s at 0x%x\n",
- i, trace_data.counts[i],
- (trace_data.counts[i] == 1 ? "" : "s"),
- trace_data.addrs[i]);
- }
- }
- else
- printf_filtered ("No entries in trace buffer.\n");
-
- printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off"));
-}
-
-/* Print the instruction at address MEMADDR in debugged memory,
- on STREAM. Returns length of the instruction, in bytes. */
-
-static int
-print_insn (memaddr, stream)
- CORE_ADDR memaddr;
- GDB_FILE *stream;
-{
- /* If there's no disassembler, something is very wrong. */
- if (tm_print_insn == NULL)
- abort ();
-
- if (TARGET_BYTE_ORDER == BIG_ENDIAN)
- tm_print_insn_info.endian = BFD_ENDIAN_BIG;
- else
- tm_print_insn_info.endian = BFD_ENDIAN_LITTLE;
- return (*tm_print_insn) (memaddr, &tm_print_insn_info);
-}
-
-void
-d30v_eva_prepare_to_trace ()
-{
- if (!tracing)
- return;
-
- last_pc = read_register (PC_REGNUM);
-}
-
-/* Collect trace data from the target board and format it into a form
- more useful for display. */
-
-void
-d30v_eva_get_trace_data ()
-{
- int count, i, j, oldsize;
- int trace_addr, trace_seg, trace_cnt, next_cnt;
- unsigned int last_trace, trace_word, next_word;
- unsigned int *tmpspace;
-
- if (!tracing)
- return;
-
- tmpspace = xmalloc (65536 * sizeof(unsigned int));
-
- last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2;
-
- /* Collect buffer contents from the target, stopping when we reach
- the word recorded when execution resumed. */
-
- count = 0;
- while (last_trace > 0)
- {
- QUIT;
- trace_word =
- read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4);
- trace_addr = trace_word & 0xffff;
- last_trace -= 4;
- /* Ignore an apparently nonsensical entry. */
- if (trace_addr == 0xffd5)
- continue;
- tmpspace[count++] = trace_word;
- if (trace_addr == last_pc)
- break;
- if (count > 65535)
- break;
- }
-
- /* Move the data to the host-side trace buffer, adjusting counts to
- include the last instruction executed and transforming the address
- into something that GDB likes. */
-
- for (i = 0; i < count; ++i)
- {
- trace_word = tmpspace[i];
- next_word = ((i == 0) ? 0 : tmpspace[i - 1]);
- trace_addr = trace_word & 0xffff;
- next_cnt = (next_word >> 24) & 0xff;
- j = trace_data.size + count - i - 1;
- trace_data.addrs[j] = (trace_addr << 2) + 0x1000000;
- trace_data.counts[j] = next_cnt + 1;
- }
-
- oldsize = trace_data.size;
- trace_data.size += count;
-
- free (tmpspace);
-
- if (trace_display)
- display_trace (oldsize, trace_data.size);
-}
-
-static void
-tdisassemble_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- int i, count;
- CORE_ADDR low, high;
- char *space_index;
-
- if (!arg)
- {
- low = 0;
- high = trace_data.size;
- }
- else if (!(space_index = (char *) strchr (arg, ' ')))
- {
- low = parse_and_eval_address (arg);
- high = low + 5;
- }
- else
- {
- /* Two arguments. */
- *space_index = '\0';
- low = parse_and_eval_address (arg);
- high = parse_and_eval_address (space_index + 1);
- if (high < low)
- high = low;
- }
-
- printf_filtered ("Dump of trace from %d to %d:\n", low, high);
-
- display_trace (low, high);
-
- printf_filtered ("End of trace dump.\n");
- gdb_flush (gdb_stdout);
-}
-
-static void
-display_trace (low, high)
- int low, high;
-{
- int i, count, trace_show_source, first, suppress;
- CORE_ADDR next_address;
-
- trace_show_source = default_trace_show_source;
- if (!have_full_symbols () && !have_partial_symbols())
- {
- trace_show_source = 0;
- printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n");
- printf_filtered ("Trace will not display any source.\n");
- }
-
- first = 1;
- suppress = 0;
- for (i = low; i < high; ++i)
- {
- next_address = trace_data.addrs[i];
- count = trace_data.counts[i];
- while (count-- > 0)
- {
- QUIT;
- if (trace_show_source)
- {
- struct symtab_and_line sal, sal_prev;
-
- sal_prev = find_pc_line (next_address - 4, 0);
- sal = find_pc_line (next_address, 0);
-
- if (sal.symtab)
- {
- if (first || sal.line != sal_prev.line)
- print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
- suppress = 0;
- }
- else
- {
- if (!suppress)
- /* FIXME-32x64--assumes sal.pc fits in long. */
- printf_filtered ("No source file for address %s.\n",
- local_hex_string((unsigned long) sal.pc));
- suppress = 1;
- }
- }
- first = 0;
- print_address (next_address, gdb_stdout);
- printf_filtered (":");
- printf_filtered ("\t");
- wrap_here (" ");
- next_address = next_address + print_insn (next_address, gdb_stdout);
- printf_filtered ("\n");
- gdb_flush (gdb_stdout);
- }
- }
-}
-
-extern void (*target_resume_hook) PARAMS ((void));
-extern void (*target_wait_loop_hook) PARAMS ((void));
-
-void
-_initialize_d30v_tdep ()
-{
- tm_print_insn = print_insn_d30v;
-
- target_resume_hook = d30v_eva_prepare_to_trace;
- target_wait_loop_hook = d30v_eva_get_trace_data;
-
- add_info ("flags", print_flags_command, "Print d30v flags.");
-
- add_com ("trace", class_support, trace_command,
- "Enable tracing of instruction execution.");
-
- add_com ("untrace", class_support, untrace_command,
- "Disable tracing of instruction execution.");
-
- add_com ("tdisassemble", class_vars, tdisassemble_command,
- "Disassemble the trace buffer.\n\
-Two optional arguments specify a range of trace buffer entries\n\
-as reported by info trace (NOT addresses!).");
-
- add_info ("trace", trace_info,
- "Display info about the trace data buffer.");
-
- add_show_from_set (add_set_cmd ("tracedisplay", no_class,
- var_integer, (char *)&trace_display,
- "Set automatic display of trace.\n", &setlist),
- &showlist);
- add_show_from_set (add_set_cmd ("tracesource", no_class,
- var_integer, (char *)&default_trace_show_source,
- "Set display of source code with trace.\n", &setlist),
- &showlist);
-
-}
+/* OBSOLETE /* Target-dependent code for Mitsubishi D30V, for GDB. */
+/* OBSOLETE */
+/* OBSOLETE Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 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 /* Contributed by Martin Hunt, hunt@cygnus.com */ */
+/* OBSOLETE */
+/* OBSOLETE #include "defs.h" */
+/* OBSOLETE #include "frame.h" */
+/* OBSOLETE #include "obstack.h" */
+/* OBSOLETE #include "symtab.h" */
+/* OBSOLETE #include "gdbtypes.h" */
+/* OBSOLETE #include "gdbcmd.h" */
+/* OBSOLETE #include "gdbcore.h" */
+/* OBSOLETE #include "gdb_string.h" */
+/* OBSOLETE #include "value.h" */
+/* OBSOLETE #include "inferior.h" */
+/* OBSOLETE #include "dis-asm.h" */
+/* OBSOLETE #include "symfile.h" */
+/* OBSOLETE #include "objfiles.h" */
+/* OBSOLETE #include "regcache.h" */
+/* OBSOLETE */
+/* OBSOLETE #include "language.h" /* For local_hex_string() */ */
+/* OBSOLETE */
+/* OBSOLETE void d30v_frame_find_saved_regs (struct frame_info *fi, */
+/* OBSOLETE struct frame_saved_regs *fsr); */
+/* OBSOLETE void d30v_frame_find_saved_regs_offsets (struct frame_info *fi, */
+/* OBSOLETE struct frame_saved_regs *fsr); */
+/* OBSOLETE static void d30v_pop_dummy_frame (struct frame_info *fi); */
+/* OBSOLETE static void d30v_print_flags (void); */
+/* OBSOLETE static void print_flags_command (char *, int); */
+/* OBSOLETE */
+/* OBSOLETE /* the following defines assume: */
+/* OBSOLETE fp is r61, lr is r62, sp is r63, and ?? is r22 */
+/* OBSOLETE if that changes, they will need to be updated */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_MASK_ALL_BUT_RA 0x0ffc0fff /* throw away Ra, keep the rest */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_STW_SPM 0x054c0fc0 /* stw Ra, @(sp-) */ */
+/* OBSOLETE #define OP_STW_SP_R0 0x05400fc0 /* stw Ra, @(sp,r0) */ */
+/* OBSOLETE #define OP_STW_SP_IMM0 0x05480fc0 /* st Ra, @(sp, 0x0) */ */
+/* OBSOLETE #define OP_STW_R22P_R0 0x05440580 /* stw Ra, @(r22+,r0) */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_ST2W_SPM 0x056c0fc0 /* st2w Ra, @(sp-) */ */
+/* OBSOLETE #define OP_ST2W_SP_R0 0x05600fc0 /* st2w Ra, @(sp, r0) */ */
+/* OBSOLETE #define OP_ST2W_SP_IMM0 0x05680fc0 /* st2w Ra, @(sp, 0x0) */ */
+/* OBSOLETE #define OP_ST2W_R22P_R0 0x05640580 /* st2w Ra, @(r22+, r0) */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_MASK_OPCODE 0x0ffc0000 /* just the opcode, ign operands */ */
+/* OBSOLETE #define OP_NOP 0x00f00000 /* nop */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_MASK_ALL_BUT_IMM 0x0fffffc0 /* throw away imm, keep the rest */ */
+/* OBSOLETE #define OP_SUB_SP_IMM 0x082bffc0 /* sub sp,sp,imm */ */
+/* OBSOLETE #define OP_ADD_SP_IMM 0x080bffc0 /* add sp,sp,imm */ */
+/* OBSOLETE #define OP_ADD_R22_SP_IMM 0x08096fc0 /* add r22,sp,imm */ */
+/* OBSOLETE #define OP_STW_FP_SP_IMM 0x054bdfc0 /* stw fp,@(sp,imm) */ */
+/* OBSOLETE #define OP_OR_SP_R0_IMM 0x03abf000 /* or sp,r0,imm */ */
+/* OBSOLETE */
+/* OBSOLETE /* no mask */ */
+/* OBSOLETE #define OP_OR_FP_R0_SP 0x03a3d03f /* or fp,r0,sp */ */
+/* OBSOLETE #define OP_OR_FP_SP_R0 0x03a3dfc0 /* or fp,sp,r0 */ */
+/* OBSOLETE #define OP_OR_FP_IMM0_SP 0x03abd03f /* or fp,0x0,sp */ */
+/* OBSOLETE #define OP_STW_FP_R22P_R0 0x0547d580 /* stw fp,@(r22+,r0) */ */
+/* OBSOLETE #define OP_STW_LR_R22P_R0 0x0547e580 /* stw lr,@(r22+,r0) */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_MASK_OP_AND_RB 0x0ff80fc0 /* keep op and rb,throw away rest */ */
+/* OBSOLETE #define OP_STW_SP_IMM 0x05480fc0 /* stw Ra,@(sp,imm) */ */
+/* OBSOLETE #define OP_ST2W_SP_IMM 0x05680fc0 /* st2w Ra,@(sp,imm) */ */
+/* OBSOLETE #define OP_STW_FP_IMM 0x05480f40 /* stw Ra,@(fp,imm) */ */
+/* OBSOLETE #define OP_STW_FP_R0 0x05400f40 /* stw Ra,@(fp,r0) */ */
+/* OBSOLETE */
+/* OBSOLETE #define OP_MASK_FM_BIT 0x80000000 */
+/* OBSOLETE #define OP_MASK_CC_BITS 0x70000000 */
+/* OBSOLETE #define OP_MASK_SUB_INST 0x0fffffff */
+/* OBSOLETE */
+/* OBSOLETE #define EXTRACT_RA(op) (((op) >> 12) & 0x3f) */
+/* OBSOLETE #define EXTRACT_RB(op) (((op) >> 6) & 0x3f) */
+/* OBSOLETE #define EXTRACT_RC(op) (((op) & 0x3f) */
+/* OBSOLETE #define EXTRACT_UIMM6(op) ((op) & 0x3f) */
+/* OBSOLETE #define EXTRACT_IMM6(op) ((((int)EXTRACT_UIMM6(op)) << 26) >> 26) */
+/* OBSOLETE #define EXTRACT_IMM26(op) ((((op)&0x0ff00000) >> 2) | ((op)&0x0003ffff)) */
+/* OBSOLETE #define EXTRACT_IMM32(opl, opr) ((EXTRACT_UIMM6(opl) << 26)|EXTRACT_IMM26(opr)) */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE int */
+/* OBSOLETE d30v_frame_chain_valid (CORE_ADDR chain, struct frame_info *fi) */
+/* OBSOLETE { */
+/* OBSOLETE #if 0 */
+/* OBSOLETE return ((chain) != 0 && (fi) != 0 && (fi)->return_pc != 0); */
+/* OBSOLETE #else */
+/* OBSOLETE return ((chain) != 0 && (fi) != 0 && (fi)->frame <= chain); */
+/* OBSOLETE #endif */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Discard from the stack the innermost frame, restoring all saved */
+/* OBSOLETE registers. */ */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_pop_frame (void) */
+/* OBSOLETE { */
+/* OBSOLETE struct frame_info *frame = get_current_frame (); */
+/* OBSOLETE CORE_ADDR fp; */
+/* OBSOLETE int regnum; */
+/* OBSOLETE struct frame_saved_regs fsr; */
+/* OBSOLETE char raw_buffer[8]; */
+/* OBSOLETE */
+/* OBSOLETE fp = FRAME_FP (frame); */
+/* OBSOLETE if (frame->dummy) */
+/* OBSOLETE { */
+/* OBSOLETE d30v_pop_dummy_frame (frame); */
+/* OBSOLETE return; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* fill out fsr with the address of where each */ */
+/* OBSOLETE /* register was stored in the frame */ */
+/* OBSOLETE get_frame_saved_regs (frame, &fsr); */
+/* OBSOLETE */
+/* OBSOLETE /* now update the current registers with the old values */ */
+/* OBSOLETE for (regnum = A0_REGNUM; regnum < A0_REGNUM + 2; regnum++) */
+/* OBSOLETE { */
+/* OBSOLETE if (fsr.regs[regnum]) */
+/* OBSOLETE { */
+/* OBSOLETE read_memory (fsr.regs[regnum], raw_buffer, 8); */
+/* OBSOLETE write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 8); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE for (regnum = 0; regnum < SP_REGNUM; regnum++) */
+/* OBSOLETE { */
+/* OBSOLETE if (fsr.regs[regnum]) */
+/* OBSOLETE { */
+/* OBSOLETE write_register (regnum, read_memory_unsigned_integer (fsr.regs[regnum], 4)); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE if (fsr.regs[PSW_REGNUM]) */
+/* OBSOLETE { */
+/* OBSOLETE write_register (PSW_REGNUM, read_memory_unsigned_integer (fsr.regs[PSW_REGNUM], 4)); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE write_register (PC_REGNUM, read_register (LR_REGNUM)); */
+/* OBSOLETE write_register (SP_REGNUM, fp + frame->size); */
+/* OBSOLETE target_store_registers (-1); */
+/* OBSOLETE flush_cached_frames (); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static int */
+/* OBSOLETE check_prologue (unsigned long op) */
+/* OBSOLETE { */
+/* OBSOLETE /* add sp,sp,imm -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* add r22,sp,imm -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* or fp,r0,sp -- observed */ */
+/* OBSOLETE if (op == OP_OR_FP_R0_SP) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* nop */ */
+/* OBSOLETE if ((op & OP_MASK_OPCODE) == OP_NOP) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra,@(sp,r0) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra,@(sp,0x0) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* st2w Ra,@(sp,r0) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* st2w Ra,@(sp,0x0) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw fp, @(r22+,r0) -- observed */ */
+/* OBSOLETE if (op == OP_STW_FP_R22P_R0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw r62, @(r22+,r0) -- observed */ */
+/* OBSOLETE if (op == OP_STW_LR_R22P_R0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra, @(fp,r0) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0) */
+/* OBSOLETE return 1; /* first arg */ */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra, @(fp,imm) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM) */
+/* OBSOLETE return 1; /* second and subsequent args */ */
+/* OBSOLETE */
+/* OBSOLETE /* stw fp,@(sp,imm) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_STW_FP_SP_IMM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* st2w Ra,@(r22+,r0) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra, @(sp-) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* st2w Ra, @(sp-) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* sub.? sp,sp,imm */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE return 0; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE d30v_skip_prologue (CORE_ADDR pc) */
+/* OBSOLETE { */
+/* OBSOLETE unsigned long op[2]; */
+/* OBSOLETE unsigned long opl, opr; /* left / right sub operations */ */
+/* OBSOLETE unsigned long fm0, fm1; /* left / right mode bits */ */
+/* OBSOLETE unsigned long cc0, cc1; */
+/* OBSOLETE unsigned long op1, op2; */
+/* OBSOLETE CORE_ADDR func_addr, func_end; */
+/* OBSOLETE struct symtab_and_line sal; */
+/* OBSOLETE */
+/* OBSOLETE /* If we have line debugging information, then the end of the */ */
+/* OBSOLETE /* prologue should the first assembly instruction of the first source line */ */
+/* OBSOLETE if (find_pc_partial_function (pc, NULL, &func_addr, &func_end)) */
+/* OBSOLETE { */
+/* OBSOLETE sal = find_pc_line (func_addr, 0); */
+/* OBSOLETE if (sal.end && sal.end < func_end) */
+/* OBSOLETE return sal.end; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE if (target_read_memory (pc, (char *) &op[0], 8)) */
+/* OBSOLETE return pc; /* Can't access it -- assume no prologue. */ */
+/* OBSOLETE */
+/* OBSOLETE while (1) */
+/* OBSOLETE { */
+/* OBSOLETE opl = (unsigned long) read_memory_integer (pc, 4); */
+/* OBSOLETE opr = (unsigned long) read_memory_integer (pc + 4, 4); */
+/* OBSOLETE */
+/* OBSOLETE fm0 = (opl & OP_MASK_FM_BIT); */
+/* OBSOLETE fm1 = (opr & OP_MASK_FM_BIT); */
+/* OBSOLETE */
+/* OBSOLETE cc0 = (opl & OP_MASK_CC_BITS); */
+/* OBSOLETE cc1 = (opr & OP_MASK_CC_BITS); */
+/* OBSOLETE */
+/* OBSOLETE opl = (opl & OP_MASK_SUB_INST); */
+/* OBSOLETE opr = (opr & OP_MASK_SUB_INST); */
+/* OBSOLETE */
+/* OBSOLETE if (fm0 && fm1) */
+/* OBSOLETE { */
+/* OBSOLETE /* long instruction (opl contains the opcode) */ */
+/* OBSOLETE if (((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_SP_IMM) && /* add sp,sp,imm */ */
+/* OBSOLETE ((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_R22_SP_IMM) && /* add r22,sp,imm */ */
+/* OBSOLETE ((opl & OP_MASK_OP_AND_RB) != OP_STW_SP_IMM) && /* stw Ra, @(sp,imm) */ */
+/* OBSOLETE ((opl & OP_MASK_OP_AND_RB) != OP_ST2W_SP_IMM)) /* st2w Ra, @(sp,imm) */ */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* short instructions */ */
+/* OBSOLETE if (fm0 && !fm1) */
+/* OBSOLETE { */
+/* OBSOLETE op1 = opr; */
+/* OBSOLETE op2 = opl; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE op1 = opl; */
+/* OBSOLETE op2 = opr; */
+/* OBSOLETE } */
+/* OBSOLETE if (check_prologue (op1)) */
+/* OBSOLETE { */
+/* OBSOLETE if (!check_prologue (op2)) */
+/* OBSOLETE { */
+/* OBSOLETE /* if the previous opcode was really part of the prologue */ */
+/* OBSOLETE /* and not just a NOP, then we want to break after both instructions */ */
+/* OBSOLETE if ((op1 & OP_MASK_OPCODE) != OP_NOP) */
+/* OBSOLETE pc += 8; */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE pc += 8; */
+/* OBSOLETE } */
+/* OBSOLETE return pc; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static int end_of_stack; */
+/* OBSOLETE */
+/* OBSOLETE /* Given a GDB frame, determine the address of the calling function's frame. */
+/* OBSOLETE This will be used to create a new GDB frame struct, and then */
+/* OBSOLETE INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. */
+/* OBSOLETE */ */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE d30v_frame_chain (struct frame_info *frame) */
+/* OBSOLETE { */
+/* OBSOLETE struct frame_saved_regs fsr; */
+/* OBSOLETE */
+/* OBSOLETE d30v_frame_find_saved_regs (frame, &fsr); */
+/* OBSOLETE */
+/* OBSOLETE if (end_of_stack) */
+/* OBSOLETE return (CORE_ADDR) 0; */
+/* OBSOLETE */
+/* OBSOLETE if (frame->return_pc == IMEM_START) */
+/* OBSOLETE return (CORE_ADDR) 0; */
+/* OBSOLETE */
+/* OBSOLETE if (!fsr.regs[FP_REGNUM]) */
+/* OBSOLETE { */
+/* OBSOLETE if (!fsr.regs[SP_REGNUM] || fsr.regs[SP_REGNUM] == STACK_START) */
+/* OBSOLETE return (CORE_ADDR) 0; */
+/* OBSOLETE */
+/* OBSOLETE return fsr.regs[SP_REGNUM]; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE if (!read_memory_unsigned_integer (fsr.regs[FP_REGNUM], 4)) */
+/* OBSOLETE return (CORE_ADDR) 0; */
+/* OBSOLETE */
+/* OBSOLETE return read_memory_unsigned_integer (fsr.regs[FP_REGNUM], 4); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static int next_addr, uses_frame; */
+/* OBSOLETE static int frame_size; */
+/* OBSOLETE */
+/* OBSOLETE static int */
+/* OBSOLETE prologue_find_regs (unsigned long op, struct frame_saved_regs *fsr, */
+/* OBSOLETE CORE_ADDR addr) */
+/* OBSOLETE { */
+/* OBSOLETE int n; */
+/* OBSOLETE int offset; */
+/* OBSOLETE */
+/* OBSOLETE /* add sp,sp,imm -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE offset = EXTRACT_IMM6 (op); */
+/* OBSOLETE /*next_addr += offset; */ */
+/* OBSOLETE frame_size += -offset; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* add r22,sp,imm -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE offset = EXTRACT_IMM6 (op); */
+/* OBSOLETE next_addr = (offset - frame_size); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra, @(fp, offset) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE offset = EXTRACT_IMM6 (op); */
+/* OBSOLETE fsr->regs[n] = (offset - frame_size); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra, @(fp, r0) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = (-frame_size); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* or fp,0,sp -- observed */ */
+/* OBSOLETE if ((op == OP_OR_FP_R0_SP) || */
+/* OBSOLETE (op == OP_OR_FP_SP_R0) || */
+/* OBSOLETE (op == OP_OR_FP_IMM0_SP)) */
+/* OBSOLETE { */
+/* OBSOLETE uses_frame = 1; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* nop */ */
+/* OBSOLETE if ((op & OP_MASK_OPCODE) == OP_NOP) */
+/* OBSOLETE return 1; */
+/* OBSOLETE */
+/* OBSOLETE /* stw Ra,@(r22+,r0) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_R22P_R0) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = next_addr; */
+/* OBSOLETE next_addr += 4; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE #if 0 /* subsumed in pattern above */ */
+/* OBSOLETE /* stw fp,@(r22+,r0) -- observed */ */
+/* OBSOLETE if (op == OP_STW_FP_R22P_R0) */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[FP_REGNUM] = next_addr; /* XXX */ */
+/* OBSOLETE next_addr += 4; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* stw r62,@(r22+,r0) -- observed */ */
+/* OBSOLETE if (op == OP_STW_LR_R22P_R0) */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[LR_REGNUM] = next_addr; */
+/* OBSOLETE next_addr += 4; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
+/* OBSOLETE /* st2w Ra,@(r22+,r0) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = next_addr; */
+/* OBSOLETE fsr->regs[n + 1] = next_addr + 4; */
+/* OBSOLETE next_addr += 8; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* stw rn, @(sp-) */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = next_addr; */
+/* OBSOLETE next_addr -= 4; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* st2w Ra, @(sp-) */ */
+/* OBSOLETE else if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = next_addr; */
+/* OBSOLETE fsr->regs[n + 1] = next_addr + 4; */
+/* OBSOLETE next_addr -= 8; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* sub sp,sp,imm */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE offset = EXTRACT_IMM6 (op); */
+/* OBSOLETE frame_size += -offset; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* st rn, @(sp,0) -- observed */ */
+/* OBSOLETE if (((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0) || */
+/* OBSOLETE ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0)) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = (-frame_size); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* st2w rn, @(sp,0) */ */
+/* OBSOLETE if (((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0) || */
+/* OBSOLETE ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0)) */
+/* OBSOLETE { */
+/* OBSOLETE n = EXTRACT_RA (op); */
+/* OBSOLETE fsr->regs[n] = (-frame_size); */
+/* OBSOLETE fsr->regs[n + 1] = (-frame_size) + 4; */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* stw fp,@(sp,imm) -- observed */ */
+/* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_STW_FP_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE offset = EXTRACT_IMM6 (op); */
+/* OBSOLETE fsr->regs[FP_REGNUM] = (offset - frame_size); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE return 0; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, the */
+/* OBSOLETE addresses of the saved registers of frame described by FRAME_INFO. */
+/* OBSOLETE This includes special registers such as pc and fp saved in special */
+/* OBSOLETE ways in the stack frame. sp is even more special: the address we */
+/* OBSOLETE return for it IS the sp for the next frame. */ */
+/* OBSOLETE void */
+/* OBSOLETE d30v_frame_find_saved_regs (struct frame_info *fi, struct frame_saved_regs *fsr) */
+/* OBSOLETE { */
+/* OBSOLETE CORE_ADDR fp, pc; */
+/* OBSOLETE unsigned long opl, opr; */
+/* OBSOLETE unsigned long op1, op2; */
+/* OBSOLETE unsigned long fm0, fm1; */
+/* OBSOLETE int i; */
+/* OBSOLETE */
+/* OBSOLETE fp = fi->frame; */
+/* OBSOLETE memset (fsr, 0, sizeof (*fsr)); */
+/* OBSOLETE next_addr = 0; */
+/* OBSOLETE frame_size = 0; */
+/* OBSOLETE end_of_stack = 0; */
+/* OBSOLETE */
+/* OBSOLETE uses_frame = 0; */
+/* OBSOLETE */
+/* OBSOLETE d30v_frame_find_saved_regs_offsets (fi, fsr); */
+/* OBSOLETE */
+/* OBSOLETE fi->size = frame_size; */
+/* OBSOLETE */
+/* OBSOLETE if (!fp) */
+/* OBSOLETE fp = read_register (SP_REGNUM); */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < NUM_REGS - 1; i++) */
+/* OBSOLETE if (fsr->regs[i]) */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[i] = fsr->regs[i] + fp + frame_size; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE if (fsr->regs[LR_REGNUM]) */
+/* OBSOLETE fi->return_pc = read_memory_unsigned_integer (fsr->regs[LR_REGNUM], 4); */
+/* OBSOLETE else */
+/* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */
+/* OBSOLETE */
+/* OBSOLETE /* the SP is not normally (ever?) saved, but check anyway */ */
+/* OBSOLETE if (!fsr->regs[SP_REGNUM]) */
+/* OBSOLETE { */
+/* OBSOLETE /* if the FP was saved, that means the current FP is valid, */ */
+/* OBSOLETE /* otherwise, it isn't being used, so we use the SP instead */ */
+/* OBSOLETE if (uses_frame) */
+/* OBSOLETE fsr->regs[SP_REGNUM] = read_register (FP_REGNUM) + fi->size; */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[SP_REGNUM] = fp + fi->size; */
+/* OBSOLETE fi->frameless = 1; */
+/* OBSOLETE fsr->regs[FP_REGNUM] = 0; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_frame_find_saved_regs_offsets (struct frame_info *fi, */
+/* OBSOLETE struct frame_saved_regs *fsr) */
+/* OBSOLETE { */
+/* OBSOLETE CORE_ADDR fp, pc; */
+/* OBSOLETE unsigned long opl, opr; */
+/* OBSOLETE unsigned long op1, op2; */
+/* OBSOLETE unsigned long fm0, fm1; */
+/* OBSOLETE int i; */
+/* OBSOLETE */
+/* OBSOLETE fp = fi->frame; */
+/* OBSOLETE memset (fsr, 0, sizeof (*fsr)); */
+/* OBSOLETE next_addr = 0; */
+/* OBSOLETE frame_size = 0; */
+/* OBSOLETE end_of_stack = 0; */
+/* OBSOLETE */
+/* OBSOLETE pc = get_pc_function_start (fi->pc); */
+/* OBSOLETE */
+/* OBSOLETE uses_frame = 0; */
+/* OBSOLETE while (pc < fi->pc) */
+/* OBSOLETE { */
+/* OBSOLETE opl = (unsigned long) read_memory_integer (pc, 4); */
+/* OBSOLETE opr = (unsigned long) read_memory_integer (pc + 4, 4); */
+/* OBSOLETE */
+/* OBSOLETE fm0 = (opl & OP_MASK_FM_BIT); */
+/* OBSOLETE fm1 = (opr & OP_MASK_FM_BIT); */
+/* OBSOLETE */
+/* OBSOLETE opl = (opl & OP_MASK_SUB_INST); */
+/* OBSOLETE opr = (opr & OP_MASK_SUB_INST); */
+/* OBSOLETE */
+/* OBSOLETE if (fm0 && fm1) */
+/* OBSOLETE { */
+/* OBSOLETE /* long instruction */ */
+/* OBSOLETE if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE /* add sp,sp,n */ */
+/* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */
+/* OBSOLETE frame_size += -offset; */
+/* OBSOLETE } */
+/* OBSOLETE else if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE /* add r22,sp,offset */ */
+/* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */
+/* OBSOLETE next_addr = (offset - frame_size); */
+/* OBSOLETE } */
+/* OBSOLETE else if ((opl & OP_MASK_OP_AND_RB) == OP_STW_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE /* st Ra, @(sp,imm) */ */
+/* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */
+/* OBSOLETE short n = EXTRACT_RA (opl); */
+/* OBSOLETE fsr->regs[n] = (offset - frame_size); */
+/* OBSOLETE } */
+/* OBSOLETE else if ((opl & OP_MASK_OP_AND_RB) == OP_ST2W_SP_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE /* st2w Ra, @(sp,offset) */ */
+/* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */
+/* OBSOLETE short n = EXTRACT_RA (opl); */
+/* OBSOLETE fsr->regs[n] = (offset - frame_size); */
+/* OBSOLETE fsr->regs[n + 1] = (offset - frame_size) + 4; */
+/* OBSOLETE } */
+/* OBSOLETE else if ((opl & OP_MASK_ALL_BUT_IMM) == OP_OR_SP_R0_IMM) */
+/* OBSOLETE { */
+/* OBSOLETE end_of_stack = 1; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* short instructions */ */
+/* OBSOLETE if (fm0 && !fm1) */
+/* OBSOLETE { */
+/* OBSOLETE op2 = opl; */
+/* OBSOLETE op1 = opr; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE op1 = opl; */
+/* OBSOLETE op2 = opr; */
+/* OBSOLETE } */
+/* OBSOLETE if (!prologue_find_regs (op1, fsr, pc) || !prologue_find_regs (op2, fsr, pc)) */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE pc += 8; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE #if 0 */
+/* OBSOLETE fi->size = frame_size; */
+/* OBSOLETE */
+/* OBSOLETE if (!fp) */
+/* OBSOLETE fp = read_register (SP_REGNUM); */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < NUM_REGS - 1; i++) */
+/* OBSOLETE if (fsr->regs[i]) */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[i] = fsr->regs[i] + fp + frame_size; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE if (fsr->regs[LR_REGNUM]) */
+/* OBSOLETE fi->return_pc = read_memory_unsigned_integer (fsr->regs[LR_REGNUM], 4); */
+/* OBSOLETE else */
+/* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */
+/* OBSOLETE */
+/* OBSOLETE /* the SP is not normally (ever?) saved, but check anyway */ */
+/* OBSOLETE if (!fsr->regs[SP_REGNUM]) */
+/* OBSOLETE { */
+/* OBSOLETE /* if the FP was saved, that means the current FP is valid, */ */
+/* OBSOLETE /* otherwise, it isn't being used, so we use the SP instead */ */
+/* OBSOLETE if (uses_frame) */
+/* OBSOLETE fsr->regs[SP_REGNUM] = read_register (FP_REGNUM) + fi->size; */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE fsr->regs[SP_REGNUM] = fp + fi->size; */
+/* OBSOLETE fi->frameless = 1; */
+/* OBSOLETE fsr->regs[FP_REGNUM] = 0; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_init_extra_frame_info (int fromleaf, struct frame_info *fi) */
+/* OBSOLETE { */
+/* OBSOLETE struct frame_saved_regs dummy; */
+/* OBSOLETE */
+/* OBSOLETE if (fi->next && (fi->pc == 0)) */
+/* OBSOLETE fi->pc = fi->next->return_pc; */
+/* OBSOLETE */
+/* OBSOLETE d30v_frame_find_saved_regs_offsets (fi, &dummy); */
+/* OBSOLETE */
+/* OBSOLETE if (uses_frame == 0) */
+/* OBSOLETE fi->frameless = 1; */
+/* OBSOLETE else */
+/* OBSOLETE fi->frameless = 0; */
+/* OBSOLETE */
+/* OBSOLETE if ((fi->next == 0) && (uses_frame == 0)) */
+/* OBSOLETE /* innermost frame and it's "frameless", */
+/* OBSOLETE so the fi->frame field is wrong, fix it! */ */
+/* OBSOLETE fi->frame = read_sp (); */
+/* OBSOLETE */
+/* OBSOLETE if (dummy.regs[LR_REGNUM]) */
+/* OBSOLETE { */
+/* OBSOLETE /* it was saved, grab it! */ */
+/* OBSOLETE dummy.regs[LR_REGNUM] += (fi->frame + frame_size); */
+/* OBSOLETE fi->return_pc = read_memory_unsigned_integer (dummy.regs[LR_REGNUM], 4); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_init_frame_pc (int fromleaf, struct frame_info *prev) */
+/* OBSOLETE { */
+/* OBSOLETE /* default value, put here so we can breakpoint on it and */
+/* OBSOLETE see if the default value is really the right thing to use */ */
+/* OBSOLETE prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \ */
+/* OBSOLETE prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ()); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void d30v_print_register (int regnum, int tabular); */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE d30v_print_register (int regnum, int tabular) */
+/* OBSOLETE { */
+/* OBSOLETE if (regnum < A0_REGNUM) */
+/* OBSOLETE { */
+/* OBSOLETE if (tabular) */
+/* OBSOLETE printf_filtered ("%08lx", (long) read_register (regnum)); */
+/* OBSOLETE else */
+/* OBSOLETE printf_filtered ("0x%lx %ld", */
+/* OBSOLETE (long) read_register (regnum), */
+/* OBSOLETE (long) read_register (regnum)); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE char regbuf[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE */
+/* OBSOLETE frame_register_read (selected_frame, regnum, regbuf); */
+/* OBSOLETE */
+/* OBSOLETE val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0, 0, */
+/* OBSOLETE gdb_stdout, 'x', 1, 0, Val_pretty_default); */
+/* OBSOLETE */
+/* OBSOLETE if (!tabular) */
+/* OBSOLETE { */
+/* OBSOLETE printf_filtered (" "); */
+/* OBSOLETE val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0, 0, */
+/* OBSOLETE gdb_stdout, 'd', 1, 0, Val_pretty_default); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE d30v_print_flags (void) */
+/* OBSOLETE { */
+/* OBSOLETE long psw = read_register (PSW_REGNUM); */
+/* OBSOLETE printf_filtered ("flags #1"); */
+/* OBSOLETE printf_filtered (" (sm) %d", (psw & PSW_SM) != 0); */
+/* OBSOLETE printf_filtered (" (ea) %d", (psw & PSW_EA) != 0); */
+/* OBSOLETE printf_filtered (" (db) %d", (psw & PSW_DB) != 0); */
+/* OBSOLETE printf_filtered (" (ds) %d", (psw & PSW_DS) != 0); */
+/* OBSOLETE printf_filtered (" (ie) %d", (psw & PSW_IE) != 0); */
+/* OBSOLETE printf_filtered (" (rp) %d", (psw & PSW_RP) != 0); */
+/* OBSOLETE printf_filtered (" (md) %d\n", (psw & PSW_MD) != 0); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("flags #2"); */
+/* OBSOLETE printf_filtered (" (f0) %d", (psw & PSW_F0) != 0); */
+/* OBSOLETE printf_filtered (" (f1) %d", (psw & PSW_F1) != 0); */
+/* OBSOLETE printf_filtered (" (f2) %d", (psw & PSW_F2) != 0); */
+/* OBSOLETE printf_filtered (" (f3) %d", (psw & PSW_F3) != 0); */
+/* OBSOLETE printf_filtered (" (s) %d", (psw & PSW_S) != 0); */
+/* OBSOLETE printf_filtered (" (v) %d", (psw & PSW_V) != 0); */
+/* OBSOLETE printf_filtered (" (va) %d", (psw & PSW_VA) != 0); */
+/* OBSOLETE printf_filtered (" (c) %d\n", (psw & PSW_C) != 0); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE print_flags_command (char *args, int from_tty) */
+/* OBSOLETE { */
+/* OBSOLETE d30v_print_flags (); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_do_registers_info (int regnum, int fpregs) */
+/* OBSOLETE { */
+/* OBSOLETE long long num1, num2; */
+/* OBSOLETE long psw; */
+/* OBSOLETE */
+/* OBSOLETE if (regnum != -1) */
+/* OBSOLETE { */
+/* OBSOLETE if (REGISTER_NAME (0) == NULL || REGISTER_NAME (0)[0] == '\000') */
+/* OBSOLETE return; */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("%s ", REGISTER_NAME (regnum)); */
+/* OBSOLETE d30v_print_register (regnum, 0); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE return; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Have to print all the registers. Format them nicely. */ */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("PC="); */
+/* OBSOLETE print_address (read_pc (), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" PSW="); */
+/* OBSOLETE d30v_print_register (PSW_REGNUM, 1); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" BPC="); */
+/* OBSOLETE print_address (read_register (BPC_REGNUM), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" BPSW="); */
+/* OBSOLETE d30v_print_register (BPSW_REGNUM, 1); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("DPC="); */
+/* OBSOLETE print_address (read_register (DPC_REGNUM), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" DPSW="); */
+/* OBSOLETE d30v_print_register (DPSW_REGNUM, 1); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" IBA="); */
+/* OBSOLETE print_address (read_register (IBA_REGNUM), gdb_stdout); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("RPT_C="); */
+/* OBSOLETE d30v_print_register (RPT_C_REGNUM, 1); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" RPT_S="); */
+/* OBSOLETE print_address (read_register (RPT_S_REGNUM), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" RPT_E="); */
+/* OBSOLETE print_address (read_register (RPT_E_REGNUM), gdb_stdout); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("MOD_S="); */
+/* OBSOLETE print_address (read_register (MOD_S_REGNUM), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" MOD_E="); */
+/* OBSOLETE print_address (read_register (MOD_E_REGNUM), gdb_stdout); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("EIT_VB="); */
+/* OBSOLETE print_address (read_register (EIT_VB_REGNUM), gdb_stdout); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" INT_S="); */
+/* OBSOLETE d30v_print_register (INT_S_REGNUM, 1); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered (" INT_M="); */
+/* OBSOLETE d30v_print_register (INT_M_REGNUM, 1); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE */
+/* OBSOLETE d30v_print_flags (); */
+/* OBSOLETE for (regnum = 0; regnum <= 63;) */
+/* OBSOLETE { */
+/* OBSOLETE int i; */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("R%d-R%d ", regnum, regnum + 7); */
+/* OBSOLETE if (regnum < 10) */
+/* OBSOLETE printf_filtered (" "); */
+/* OBSOLETE if (regnum + 7 < 10) */
+/* OBSOLETE printf_filtered (" "); */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < 8; i++) */
+/* OBSOLETE { */
+/* OBSOLETE printf_filtered (" "); */
+/* OBSOLETE d30v_print_register (regnum++, 1); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("A0-A1 "); */
+/* OBSOLETE */
+/* OBSOLETE d30v_print_register (A0_REGNUM, 1); */
+/* OBSOLETE printf_filtered (" "); */
+/* OBSOLETE d30v_print_register (A1_REGNUM, 1); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE d30v_fix_call_dummy (char *dummyname, CORE_ADDR start_sp, CORE_ADDR fun, */
+/* OBSOLETE int nargs, struct value **args, */
+/* OBSOLETE struct type *type, int gcc_p) */
+/* OBSOLETE { */
+/* OBSOLETE int regnum; */
+/* OBSOLETE CORE_ADDR sp; */
+/* OBSOLETE char buffer[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE struct frame_info *frame = get_current_frame (); */
+/* OBSOLETE frame->dummy = start_sp; */
+/* OBSOLETE /*start_sp |= DMEM_START; */ */
+/* OBSOLETE */
+/* OBSOLETE sp = start_sp; */
+/* OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++) */
+/* OBSOLETE { */
+/* OBSOLETE sp -= REGISTER_RAW_SIZE (regnum); */
+/* OBSOLETE store_address (buffer, REGISTER_RAW_SIZE (regnum), read_register (regnum)); */
+/* OBSOLETE write_memory (sp, buffer, REGISTER_RAW_SIZE (regnum)); */
+/* OBSOLETE } */
+/* OBSOLETE write_register (SP_REGNUM, (LONGEST) sp); */
+/* OBSOLETE /* now we need to load LR with the return address */ */
+/* OBSOLETE write_register (LR_REGNUM, (LONGEST) d30v_call_dummy_address ()); */
+/* OBSOLETE return sp; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE d30v_pop_dummy_frame (struct frame_info *fi) */
+/* OBSOLETE { */
+/* OBSOLETE CORE_ADDR sp = fi->dummy; */
+/* OBSOLETE int regnum; */
+/* OBSOLETE */
+/* OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++) */
+/* OBSOLETE { */
+/* OBSOLETE sp -= REGISTER_RAW_SIZE (regnum); */
+/* OBSOLETE write_register (regnum, read_memory_unsigned_integer (sp, REGISTER_RAW_SIZE (regnum))); */
+/* OBSOLETE } */
+/* OBSOLETE flush_cached_frames (); /* needed? */ */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE d30v_push_arguments (int nargs, struct value **args, CORE_ADDR sp, */
+/* OBSOLETE int struct_return, CORE_ADDR struct_addr) */
+/* OBSOLETE { */
+/* OBSOLETE int i, len, index = 0, regnum = 2; */
+/* OBSOLETE char buffer[4], *contents; */
+/* OBSOLETE LONGEST val; */
+/* OBSOLETE CORE_ADDR ptrs[10]; */
+/* OBSOLETE */
+/* OBSOLETE #if 0 */
+/* OBSOLETE /* Pass 1. Put all large args on stack */ */
+/* OBSOLETE for (i = 0; i < nargs; i++) */
+/* OBSOLETE { */
+/* OBSOLETE struct value *arg = args[i]; */
+/* OBSOLETE struct type *arg_type = check_typedef (VALUE_TYPE (arg)); */
+/* OBSOLETE len = TYPE_LENGTH (arg_type); */
+/* OBSOLETE contents = VALUE_CONTENTS (arg); */
+/* OBSOLETE val = extract_signed_integer (contents, len); */
+/* OBSOLETE if (len > 4) */
+/* OBSOLETE { */
+/* OBSOLETE /* put on stack and pass pointers */ */
+/* OBSOLETE sp -= len; */
+/* OBSOLETE write_memory (sp, contents, len); */
+/* OBSOLETE ptrs[index++] = sp; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
+/* OBSOLETE index = 0; */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < nargs; i++) */
+/* OBSOLETE { */
+/* OBSOLETE struct value *arg = args[i]; */
+/* OBSOLETE struct type *arg_type = check_typedef (VALUE_TYPE (arg)); */
+/* OBSOLETE len = TYPE_LENGTH (arg_type); */
+/* OBSOLETE contents = VALUE_CONTENTS (arg); */
+/* OBSOLETE if (len > 4) */
+/* OBSOLETE { */
+/* OBSOLETE /* we need multiple registers */ */
+/* OBSOLETE int ndx; */
+/* OBSOLETE */
+/* OBSOLETE for (ndx = 0; len > 0; ndx += 8, len -= 8) */
+/* OBSOLETE { */
+/* OBSOLETE if (regnum & 1) */
+/* OBSOLETE regnum++; /* all args > 4 bytes start in even register */ */
+/* OBSOLETE */
+/* OBSOLETE if (regnum < 18) */
+/* OBSOLETE { */
+/* OBSOLETE val = extract_signed_integer (&contents[ndx], 4); */
+/* OBSOLETE write_register (regnum++, val); */
+/* OBSOLETE */
+/* OBSOLETE if (len >= 8) */
+/* OBSOLETE val = extract_signed_integer (&contents[ndx + 4], 4); */
+/* OBSOLETE else */
+/* OBSOLETE val = extract_signed_integer (&contents[ndx + 4], len - 4); */
+/* OBSOLETE write_register (regnum++, val); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* no more registers available. put it on the stack */ */
+/* OBSOLETE */
+/* OBSOLETE /* all args > 4 bytes are padded to a multiple of 8 bytes */
+/* OBSOLETE and start on an 8 byte boundary */ */
+/* OBSOLETE if (sp & 7) */
+/* OBSOLETE sp -= (sp & 7); /* align it */ */
+/* OBSOLETE */
+/* OBSOLETE sp -= ((len + 7) & ~7); /* allocate space */ */
+/* OBSOLETE write_memory (sp, &contents[ndx], len); */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE if (regnum < 18) */
+/* OBSOLETE { */
+/* OBSOLETE val = extract_signed_integer (contents, len); */
+/* OBSOLETE write_register (regnum++, val); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* all args are padded to a multiple of 4 bytes (at least) */ */
+/* OBSOLETE sp -= ((len + 3) & ~3); */
+/* OBSOLETE write_memory (sp, contents, len); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE if (sp & 7) */
+/* OBSOLETE /* stack pointer is not on an 8 byte boundary -- align it */ */
+/* OBSOLETE sp -= (sp & 7); */
+/* OBSOLETE return sp; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE /* pick an out-of-the-way place to set the return value */ */
+/* OBSOLETE /* for an inferior function call. The link register is set to this */ */
+/* OBSOLETE /* value and a momentary breakpoint is set there. When the breakpoint */ */
+/* OBSOLETE /* is hit, the dummy frame is popped and the previous environment is */ */
+/* OBSOLETE /* restored. */ */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE d30v_call_dummy_address (void) */
+/* OBSOLETE { */
+/* OBSOLETE CORE_ADDR entry; */
+/* OBSOLETE struct minimal_symbol *sym; */
+/* OBSOLETE */
+/* OBSOLETE entry = entry_point_address (); */
+/* OBSOLETE */
+/* OBSOLETE if (entry != 0) */
+/* OBSOLETE return entry; */
+/* OBSOLETE */
+/* OBSOLETE sym = lookup_minimal_symbol ("_start", NULL, symfile_objfile); */
+/* OBSOLETE */
+/* OBSOLETE if (!sym || MSYMBOL_TYPE (sym) != mst_text) */
+/* OBSOLETE return 0; */
+/* OBSOLETE else */
+/* OBSOLETE return SYMBOL_VALUE_ADDRESS (sym); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Given a return value in `regbuf' with a type `valtype', */
+/* OBSOLETE extract and copy its value into `valbuf'. */ */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_extract_return_value (struct type *valtype, char regbuf[REGISTER_BYTES], */
+/* OBSOLETE char *valbuf) */
+/* OBSOLETE { */
+/* OBSOLETE memcpy (valbuf, regbuf + REGISTER_BYTE (2), TYPE_LENGTH (valtype)); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* The following code implements access to, and display of, the D30V's */
+/* OBSOLETE instruction trace buffer. The buffer consists of 64K or more */
+/* OBSOLETE 4-byte words of data, of which each words includes an 8-bit count, */
+/* OBSOLETE an 8-bit segment number, and a 16-bit instruction address. */
+/* OBSOLETE */
+/* OBSOLETE In theory, the trace buffer is continuously capturing instruction */
+/* OBSOLETE data that the CPU presents on its "debug bus", but in practice, the */
+/* OBSOLETE ROMified GDB stub only enables tracing when it continues or steps */
+/* OBSOLETE the program, and stops tracing when the program stops; so it */
+/* OBSOLETE actually works for GDB to read the buffer counter out of memory and */
+/* OBSOLETE then read each trace word. The counter records where the tracing */
+/* OBSOLETE stops, but there is no record of where it started, so we remember */
+/* OBSOLETE the PC when we resumed and then search backwards in the trace */
+/* OBSOLETE buffer for a word that includes that address. This is not perfect, */
+/* OBSOLETE because you will miss trace data if the resumption PC is the target */
+/* OBSOLETE of a branch. (The value of the buffer counter is semi-random, any */
+/* OBSOLETE trace data from a previous program stop is gone.) */ */
+/* OBSOLETE */
+/* OBSOLETE /* The address of the last word recorded in the trace buffer. */ */
+/* OBSOLETE */
+/* OBSOLETE #define DBBC_ADDR (0xd80000) */
+/* OBSOLETE */
+/* OBSOLETE /* The base of the trace buffer, at least for the "Board_0". */ */
+/* OBSOLETE */
+/* OBSOLETE #define TRACE_BUFFER_BASE (0xf40000) */
+/* OBSOLETE */
+/* OBSOLETE static void trace_command (char *, int); */
+/* OBSOLETE */
+/* OBSOLETE static void untrace_command (char *, int); */
+/* OBSOLETE */
+/* OBSOLETE static void trace_info (char *, int); */
+/* OBSOLETE */
+/* OBSOLETE static void tdisassemble_command (char *, int); */
+/* OBSOLETE */
+/* OBSOLETE static void display_trace (int, int); */
+/* OBSOLETE */
+/* OBSOLETE /* True when instruction traces are being collected. */ */
+/* OBSOLETE */
+/* OBSOLETE static int tracing; */
+/* OBSOLETE */
+/* OBSOLETE /* Remembered PC. */ */
+/* OBSOLETE */
+/* OBSOLETE static CORE_ADDR last_pc; */
+/* OBSOLETE */
+/* OBSOLETE /* True when trace output should be displayed whenever program stops. */ */
+/* OBSOLETE */
+/* OBSOLETE static int trace_display; */
+/* OBSOLETE */
+/* OBSOLETE /* True when trace listing should include source lines. */ */
+/* OBSOLETE */
+/* OBSOLETE static int default_trace_show_source = 1; */
+/* OBSOLETE */
+/* OBSOLETE struct trace_buffer */
+/* OBSOLETE { */
+/* OBSOLETE int size; */
+/* OBSOLETE short *counts; */
+/* OBSOLETE CORE_ADDR *addrs; */
+/* OBSOLETE } */
+/* OBSOLETE trace_data; */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE trace_command (char *args, int from_tty) */
+/* OBSOLETE { */
+/* OBSOLETE /* Clear the host-side trace buffer, allocating space if needed. */ */
+/* OBSOLETE trace_data.size = 0; */
+/* OBSOLETE if (trace_data.counts == NULL) */
+/* OBSOLETE trace_data.counts = (short *) xmalloc (65536 * sizeof (short)); */
+/* OBSOLETE if (trace_data.addrs == NULL) */
+/* OBSOLETE trace_data.addrs = (CORE_ADDR *) xmalloc (65536 * sizeof (CORE_ADDR)); */
+/* OBSOLETE */
+/* OBSOLETE tracing = 1; */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("Tracing is now on.\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE untrace_command (char *args, int from_tty) */
+/* OBSOLETE { */
+/* OBSOLETE tracing = 0; */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("Tracing is now off.\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE trace_info (char *args, int from_tty) */
+/* OBSOLETE { */
+/* OBSOLETE int i; */
+/* OBSOLETE */
+/* OBSOLETE if (trace_data.size) */
+/* OBSOLETE { */
+/* OBSOLETE printf_filtered ("%d entries in trace buffer:\n", trace_data.size); */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < trace_data.size; ++i) */
+/* OBSOLETE { */
+/* OBSOLETE printf_filtered ("%d: %d instruction%s at 0x%s\n", */
+/* OBSOLETE i, trace_data.counts[i], */
+/* OBSOLETE (trace_data.counts[i] == 1 ? "" : "s"), */
+/* OBSOLETE paddr_nz (trace_data.addrs[i])); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE printf_filtered ("No entries in trace buffer.\n"); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off")); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Print the instruction at address MEMADDR in debugged memory, */
+/* OBSOLETE on STREAM. Returns length of the instruction, in bytes. */ */
+/* OBSOLETE */
+/* OBSOLETE static int */
+/* OBSOLETE print_insn (CORE_ADDR memaddr, struct ui_file *stream) */
+/* OBSOLETE { */
+/* OBSOLETE /* If there's no disassembler, something is very wrong. */ */
+/* OBSOLETE if (tm_print_insn == NULL) */
+/* OBSOLETE internal_error (__FILE__, __LINE__, */
+/* OBSOLETE "print_insn: no disassembler"); */
+/* OBSOLETE */
+/* OBSOLETE if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) */
+/* OBSOLETE tm_print_insn_info.endian = BFD_ENDIAN_BIG; */
+/* OBSOLETE else */
+/* OBSOLETE tm_print_insn_info.endian = BFD_ENDIAN_LITTLE; */
+/* OBSOLETE return TARGET_PRINT_INSN (memaddr, &tm_print_insn_info); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_eva_prepare_to_trace (void) */
+/* OBSOLETE { */
+/* OBSOLETE if (!tracing) */
+/* OBSOLETE return; */
+/* OBSOLETE */
+/* OBSOLETE last_pc = read_register (PC_REGNUM); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Collect trace data from the target board and format it into a form */
+/* OBSOLETE more useful for display. */ */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE d30v_eva_get_trace_data (void) */
+/* OBSOLETE { */
+/* OBSOLETE int count, i, j, oldsize; */
+/* OBSOLETE int trace_addr, trace_seg, trace_cnt, next_cnt; */
+/* OBSOLETE unsigned int last_trace, trace_word, next_word; */
+/* OBSOLETE unsigned int *tmpspace; */
+/* OBSOLETE */
+/* OBSOLETE if (!tracing) */
+/* OBSOLETE return; */
+/* OBSOLETE */
+/* OBSOLETE tmpspace = xmalloc (65536 * sizeof (unsigned int)); */
+/* OBSOLETE */
+/* OBSOLETE last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2; */
+/* OBSOLETE */
+/* OBSOLETE /* Collect buffer contents from the target, stopping when we reach */
+/* OBSOLETE the word recorded when execution resumed. */ */
+/* OBSOLETE */
+/* OBSOLETE count = 0; */
+/* OBSOLETE while (last_trace > 0) */
+/* OBSOLETE { */
+/* OBSOLETE QUIT; */
+/* OBSOLETE trace_word = */
+/* OBSOLETE read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4); */
+/* OBSOLETE trace_addr = trace_word & 0xffff; */
+/* OBSOLETE last_trace -= 4; */
+/* OBSOLETE /* Ignore an apparently nonsensical entry. */ */
+/* OBSOLETE if (trace_addr == 0xffd5) */
+/* OBSOLETE continue; */
+/* OBSOLETE tmpspace[count++] = trace_word; */
+/* OBSOLETE if (trace_addr == last_pc) */
+/* OBSOLETE break; */
+/* OBSOLETE if (count > 65535) */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Move the data to the host-side trace buffer, adjusting counts to */
+/* OBSOLETE include the last instruction executed and transforming the address */
+/* OBSOLETE into something that GDB likes. */ */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < count; ++i) */
+/* OBSOLETE { */
+/* OBSOLETE trace_word = tmpspace[i]; */
+/* OBSOLETE next_word = ((i == 0) ? 0 : tmpspace[i - 1]); */
+/* OBSOLETE trace_addr = trace_word & 0xffff; */
+/* OBSOLETE next_cnt = (next_word >> 24) & 0xff; */
+/* OBSOLETE j = trace_data.size + count - i - 1; */
+/* OBSOLETE trace_data.addrs[j] = (trace_addr << 2) + 0x1000000; */
+/* OBSOLETE trace_data.counts[j] = next_cnt + 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE oldsize = trace_data.size; */
+/* OBSOLETE trace_data.size += count; */
+/* OBSOLETE */
+/* OBSOLETE xfree (tmpspace); */
+/* OBSOLETE */
+/* OBSOLETE if (trace_display) */
+/* OBSOLETE display_trace (oldsize, trace_data.size); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE tdisassemble_command (char *arg, int from_tty) */
+/* OBSOLETE { */
+/* OBSOLETE int i, count; */
+/* OBSOLETE CORE_ADDR low, high; */
+/* OBSOLETE char *space_index; */
+/* OBSOLETE */
+/* OBSOLETE if (!arg) */
+/* OBSOLETE { */
+/* OBSOLETE low = 0; */
+/* OBSOLETE high = trace_data.size; */
+/* OBSOLETE } */
+/* OBSOLETE else if (!(space_index = (char *) strchr (arg, ' '))) */
+/* OBSOLETE { */
+/* OBSOLETE low = parse_and_eval_address (arg); */
+/* OBSOLETE high = low + 5; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* Two arguments. */ */
+/* OBSOLETE *space_index = '\0'; */
+/* OBSOLETE low = parse_and_eval_address (arg); */
+/* OBSOLETE high = parse_and_eval_address (space_index + 1); */
+/* OBSOLETE if (high < low) */
+/* OBSOLETE high = low; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("Dump of trace from %s to %s:\n", */
+/* OBSOLETE paddr_u (low), */
+/* OBSOLETE paddr_u (high)); */
+/* OBSOLETE */
+/* OBSOLETE display_trace (low, high); */
+/* OBSOLETE */
+/* OBSOLETE printf_filtered ("End of trace dump.\n"); */
+/* OBSOLETE gdb_flush (gdb_stdout); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static void */
+/* OBSOLETE display_trace (int low, int high) */
+/* OBSOLETE { */
+/* OBSOLETE int i, count, trace_show_source, first, suppress; */
+/* OBSOLETE CORE_ADDR next_address; */
+/* OBSOLETE */
+/* OBSOLETE trace_show_source = default_trace_show_source; */
+/* OBSOLETE if (!have_full_symbols () && !have_partial_symbols ()) */
+/* OBSOLETE { */
+/* OBSOLETE trace_show_source = 0; */
+/* OBSOLETE printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n"); */
+/* OBSOLETE printf_filtered ("Trace will not display any source.\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE first = 1; */
+/* OBSOLETE suppress = 0; */
+/* OBSOLETE for (i = low; i < high; ++i) */
+/* OBSOLETE { */
+/* OBSOLETE next_address = trace_data.addrs[i]; */
+/* OBSOLETE count = trace_data.counts[i]; */
+/* OBSOLETE while (count-- > 0) */
+/* OBSOLETE { */
+/* OBSOLETE QUIT; */
+/* OBSOLETE if (trace_show_source) */
+/* OBSOLETE { */
+/* OBSOLETE struct symtab_and_line sal, sal_prev; */
+/* OBSOLETE */
+/* OBSOLETE sal_prev = find_pc_line (next_address - 4, 0); */
+/* OBSOLETE sal = find_pc_line (next_address, 0); */
+/* OBSOLETE */
+/* OBSOLETE if (sal.symtab) */
+/* OBSOLETE { */
+/* OBSOLETE if (first || sal.line != sal_prev.line) */
+/* OBSOLETE print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); */
+/* OBSOLETE suppress = 0; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE if (!suppress) */
+/* OBSOLETE /* FIXME-32x64--assumes sal.pc fits in long. */ */
+/* OBSOLETE printf_filtered ("No source file for address %s.\n", */
+/* OBSOLETE local_hex_string ((unsigned long) sal.pc)); */
+/* OBSOLETE suppress = 1; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE first = 0; */
+/* OBSOLETE print_address (next_address, gdb_stdout); */
+/* OBSOLETE printf_filtered (":"); */
+/* OBSOLETE printf_filtered ("\t"); */
+/* OBSOLETE wrap_here (" "); */
+/* OBSOLETE next_address = next_address + print_insn (next_address, gdb_stdout); */
+/* OBSOLETE printf_filtered ("\n"); */
+/* OBSOLETE gdb_flush (gdb_stdout); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE extern void (*target_resume_hook) (void); */
+/* OBSOLETE extern void (*target_wait_loop_hook) (void); */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE _initialize_d30v_tdep (void) */
+/* OBSOLETE { */
+/* OBSOLETE tm_print_insn = print_insn_d30v; */
+/* OBSOLETE */
+/* OBSOLETE target_resume_hook = d30v_eva_prepare_to_trace; */
+/* OBSOLETE target_wait_loop_hook = d30v_eva_get_trace_data; */
+/* OBSOLETE */
+/* OBSOLETE add_info ("flags", print_flags_command, "Print d30v flags."); */
+/* OBSOLETE */
+/* OBSOLETE add_com ("trace", class_support, trace_command, */
+/* OBSOLETE "Enable tracing of instruction execution."); */
+/* OBSOLETE */
+/* OBSOLETE add_com ("untrace", class_support, untrace_command, */
+/* OBSOLETE "Disable tracing of instruction execution."); */
+/* OBSOLETE */
+/* OBSOLETE add_com ("tdisassemble", class_vars, tdisassemble_command, */
+/* OBSOLETE "Disassemble the trace buffer.\n\ */
+/* OBSOLETE Two optional arguments specify a range of trace buffer entries\n\ */
+/* OBSOLETE as reported by info trace (NOT addresses!)."); */
+/* OBSOLETE */
+/* OBSOLETE add_info ("trace", trace_info, */
+/* OBSOLETE "Display info about the trace data buffer."); */
+/* OBSOLETE */
+/* OBSOLETE add_show_from_set (add_set_cmd ("tracedisplay", no_class, */
+/* OBSOLETE var_integer, (char *) &trace_display, */
+/* OBSOLETE "Set automatic display of trace.\n", &setlist), */
+/* OBSOLETE &showlist); */
+/* OBSOLETE add_show_from_set (add_set_cmd ("tracesource", no_class, */
+/* OBSOLETE var_integer, (char *) &default_trace_show_source, */
+/* OBSOLETE "Set display of source code with trace.\n", &setlist), */
+/* OBSOLETE &showlist); */
+/* OBSOLETE */
+/* OBSOLETE } */
projects / deliverable / binutils-gdb.git / blobdiff