Wed May 24 15:49:47 1995 Steve Chamberlain <sac@slash.cygnus.com>
* arm-tdep.c (convert_from_extended, convert_to_extended): New. * coffread.c (enter_linenos): Return if linetab 0. * config/arm/arm.mt (TDEPFILES): Add simulator support. * config/arm/tm-arm.h (FRAME_FIND_SAVED_REGS): Fix prototypes.
This commit is contained in:
Steve Chamberlain
parent
4cea100d33
commit
54af8e6e7b
@ -1,3 +1,16 @@
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Wed May 24 15:49:47 1995 Steve Chamberlain <sac@slash.cygnus.com>
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* arm-tdep.c (convert_from_extended, convert_to_extended):
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New.
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* coffread.c (enter_linenos): Return if linetab 0.
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* config/arm/arm.mt (TDEPFILES): Add simulator support.
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* config/arm/tm-arm.h (FRAME_FIND_SAVED_REGS): Fix prototypes.
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Mon May 22 19:37:21 1995 Rob Savoye <rob@darkstar.cygnus.com>
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* config/idt.mt: replace monitor and array-rom with the new
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remote-array.
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Mon May 22 15:38:25 1995 Stu Grossman (grossman@cygnus.com)
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* remote-nindy.c: Install Kung patch for PR 6820. I have no idea
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108
gdb/arm-tdep.c
108
gdb/arm-tdep.c
@ -1,28 +1,28 @@
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/* Copyright (C) 1988, 1989 Free Software Foundation, Inc.
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/* Target-dependent code for the Acorn Risc Machine, for GDB, the GNU Debugger.
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Copyright 1988, 1989, 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
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This file is part of GDB.
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GDB is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GDB is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "param.h"
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#include "frame.h"
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#include "inferior.h"
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#include "arm-opcode.h"
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#include <stdio.h>
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#if 0
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#include "gdbcore.h"
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#include <sys/param.h>
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#include <sys/dir.h>
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#include <signal.h>
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@ -33,14 +33,15 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define N_TXTADDR(hdr) 0x8000
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#define N_DATADDR(hdr) (hdr.a_text + 0x8000)
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#include "gdbcore.h"
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#include <sys/user.h> /* After a.out.h */
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <errno.h>
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#endif
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#if 0
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/* Work with core dump and executable files, for GDB.
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This code would be in core.c if it weren't machine-dependent. */
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@ -157,7 +158,9 @@ exec_file_command (filename, from_tty)
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if (exec_file_display_hook)
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(*exec_file_display_hook) (filename);
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}
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#endif
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#if 0
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/* Read from the program's memory (except for inferior processes).
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This function is misnamed, since it only reads, never writes; and
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since it will use the core file and/or executable file as necessary.
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@ -309,7 +312,7 @@ xfer_core_file (memaddr, myaddr, len)
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Actually, we never right. */
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else
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{
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bzero (myaddr, i);
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memset (myaddr, '\0', i);
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returnval = EIO;
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}
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@ -319,6 +322,7 @@ xfer_core_file (memaddr, myaddr, len)
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}
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return returnval;
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}
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#endif
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/* APCS (ARM procedure call standard) defines the following prologue:
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@ -336,8 +340,9 @@ CORE_ADDR
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skip_prologue(pc)
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CORE_ADDR pc;
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{
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union insn_fmt op;
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CORE_ADDR skip_pc = pc;
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#if 0
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union insn_fmt op;
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op.ins = read_memory_integer(skip_pc, 4);
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/* look for the "mov ip,sp" */
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@ -374,9 +379,58 @@ CORE_ADDR pc;
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op.arith.opcode != OPCODE_SUB ||
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op.arith.dest != FP ||
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op.arith.operand1 != SPTEMP) return pc;
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#endif
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return skip_pc + 4;
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}
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void
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arm_frame_find_saved_regs (frame_info, saved_regs_addr)
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struct frame_info *frame_info;
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struct frame_saved_regs *saved_regs_addr;
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{
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register int regnum;
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register int frame;
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register int next_addr;
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register int return_data_save;
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register int saved_register_mask;
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memset (saved_regs_addr, '\0', sizeof (*saved_regs_addr));
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frame = frame_info->frame;
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return_data_save = read_memory_integer (frame, 4) & 0x03fffffc - 12;
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saved_register_mask = read_memory_integer (return_data_save, 4);
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next_addr = frame - 12;
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for (regnum = 4; regnum < 10; regnum++)
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if (saved_register_mask & (1 << regnum))
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{
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next_addr -= 4;
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saved_regs_addr->regs[regnum] = next_addr;
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}
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if (read_memory_integer (return_data_save + 4, 4) == 0xed6d7103)
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{
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next_addr -= 12;
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saved_regs_addr->regs[F0_REGNUM + 7] = next_addr;
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}
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if (read_memory_integer (return_data_save + 8, 4) == 0xed6d6103)
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{
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next_addr -= 12;
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saved_regs_addr->regs[F0_REGNUM + 6] = next_addr;
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}
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if (read_memory_integer (return_data_save + 12, 4) == 0xed6d5103)
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{
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next_addr -= 12;
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saved_regs_addr->regs[F0_REGNUM + 5] = next_addr;
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}
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if (read_memory_integer(return_data_save + 16, 4) == 0xed6d4103)
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{
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next_addr -= 12;
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saved_regs_addr->regs[F0_REGNUM + 4] = next_addr;
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}
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saved_regs_addr->regs[SP_REGNUM] = next_addr;
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saved_regs_addr->regs[PC_REGNUM] = frame - 4;
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saved_regs_addr->regs[PS_REGNUM] = frame - 4;
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saved_regs_addr->regs[FP_REGNUM] = frame - 12;
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}
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static void
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print_fpu_flags(flags)
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int flags;
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@ -404,3 +458,31 @@ arm_float_info()
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fputs("flags: ", stdout);
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print_fpu_flags(status);
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}
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void
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_initialize_arm_tdep ()
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{
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tm_print_insn = print_insn_arm;
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}
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/* FIXME: Fill in with the 'right thing', see asm
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template in arm-convert.s */
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void
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convert_from_extended (ptr, dbl)
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void *ptr;
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double *dbl;
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{
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*dbl = *(double*)ptr;
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}
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void
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convert_to_extended (dbl, ptr)
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void *ptr;
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double *dbl;
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{
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*(double*)ptr = *dbl;
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}
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@ -1,3 +1,3 @@
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# Target: Acorn RISC machine running RISCiX (4.3bsd)
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TDEPFILES= arm-tdep.o
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TDEPFILES= arm-tdep.o remote-sim.o ../sim/arm/libsim.a
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TM_FILE= tm-arm.h
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