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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 1995-05-24 23:56:24 +00:00
parent 4cea100d33
commit 54af8e6e7b
3 changed files with 109 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
gdb/ChangeLog
View File

@ -1,3 +1,16 @@
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.
Mon May 22 19:37:21 1995 Rob Savoye <rob@darkstar.cygnus.com>
* config/idt.mt: replace monitor and array-rom with the new
remote-array.
Mon May 22 15:38:25 1995 Stu Grossman (grossman@cygnus.com) Mon May 22 15:38:25 1995 Stu Grossman (grossman@cygnus.com)
* remote-nindy.c: Install Kung patch for PR 6820. I have no idea * remote-nindy.c: Install Kung patch for PR 6820. I have no idea

108
gdb/arm-tdep.c
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@ -1,28 +1,28 @@
/* Copyright (C) 1988, 1989 Free Software Foundation, Inc. /* Target-dependent code for the Acorn Risc Machine, for GDB, the GNU Debugger.
Copyright 1988, 1989, 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
This file is part of GDB. This file is part of GDB.
GDB is free software; you can redistribute it and/or modify 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 it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option) the Free Software Foundation; either version 2 of the License, or
any later version. (at your option) any later version.
GDB is distributed in the hope that it will be useful, This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details. GNU General Public License for more details.
You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
along with GDB; see the file COPYING. If not, write to along with this program; if not, write to the Free Software
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h" #include "defs.h"
#include "param.h"
#include "frame.h" #include "frame.h"
#include "inferior.h" #include "inferior.h"
#include "arm-opcode.h"
#include <stdio.h> #if 0
#include "gdbcore.h"
#include <sys/param.h> #include <sys/param.h>
#include <sys/dir.h> #include <sys/dir.h>
#include <signal.h> #include <signal.h>
@ -33,14 +33,15 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define N_TXTADDR(hdr) 0x8000 #define N_TXTADDR(hdr) 0x8000
#define N_DATADDR(hdr) (hdr.a_text + 0x8000) #define N_DATADDR(hdr) (hdr.a_text + 0x8000)
#include "gdbcore.h"
#include <sys/user.h> /* After a.out.h */ #include <sys/user.h> /* After a.out.h */
#include <sys/file.h> #include <sys/file.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <errno.h> #include <errno.h>
#endif
#if 0
/* Work with core dump and executable files, for GDB. /* Work with core dump and executable files, for GDB.
This code would be in core.c if it weren't machine-dependent. */ This code would be in core.c if it weren't machine-dependent. */
@ -157,7 +158,9 @@ exec_file_command (filename, from_tty)
if (exec_file_display_hook) if (exec_file_display_hook)
(*exec_file_display_hook) (filename); (*exec_file_display_hook) (filename);
} }
#endif
#if 0
/* Read from the program's memory (except for inferior processes). /* Read from the program's memory (except for inferior processes).
This function is misnamed, since it only reads, never writes; and This function is misnamed, since it only reads, never writes; and
since it will use the core file and/or executable file as necessary. since it will use the core file and/or executable file as necessary.
@ -309,7 +312,7 @@ xfer_core_file (memaddr, myaddr, len)
Actually, we never right. */ Actually, we never right. */
else else
{ {
bzero (myaddr, i); memset (myaddr, '\0', i);
returnval = EIO; returnval = EIO;
} }
@ -319,6 +322,7 @@ xfer_core_file (memaddr, myaddr, len)
} }
return returnval; return returnval;
} }
#endif
/* APCS (ARM procedure call standard) defines the following prologue: /* APCS (ARM procedure call standard) defines the following prologue:
@ -336,8 +340,9 @@ CORE_ADDR
skip_prologue(pc) skip_prologue(pc)
CORE_ADDR pc; CORE_ADDR pc;
{ {
union insn_fmt op;
CORE_ADDR skip_pc = pc; CORE_ADDR skip_pc = pc;
#if 0
union insn_fmt op;
op.ins = read_memory_integer(skip_pc, 4); op.ins = read_memory_integer(skip_pc, 4);
/* look for the "mov ip,sp" */ /* look for the "mov ip,sp" */
@ -374,9 +379,58 @@ CORE_ADDR pc;
op.arith.opcode != OPCODE_SUB || op.arith.opcode != OPCODE_SUB ||
op.arith.dest != FP || op.arith.dest != FP ||
op.arith.operand1 != SPTEMP) return pc; op.arith.operand1 != SPTEMP) return pc;
#endif
return skip_pc + 4; return skip_pc + 4;
} }
void
arm_frame_find_saved_regs (frame_info, saved_regs_addr)
struct frame_info *frame_info;
struct frame_saved_regs *saved_regs_addr;
{
register int regnum;
register int frame;
register int next_addr;
register int return_data_save;
register int saved_register_mask;
memset (saved_regs_addr, '\0', sizeof (*saved_regs_addr));
frame = frame_info->frame;
return_data_save = read_memory_integer (frame, 4) & 0x03fffffc - 12;
saved_register_mask = read_memory_integer (return_data_save, 4);
next_addr = frame - 12;
for (regnum = 4; regnum < 10; regnum++)
if (saved_register_mask & (1 << regnum))
{
next_addr -= 4;
saved_regs_addr->regs[regnum] = next_addr;
}
if (read_memory_integer (return_data_save + 4, 4) == 0xed6d7103)
{
next_addr -= 12;
saved_regs_addr->regs[F0_REGNUM + 7] = next_addr;
}
if (read_memory_integer (return_data_save + 8, 4) == 0xed6d6103)
{
next_addr -= 12;
saved_regs_addr->regs[F0_REGNUM + 6] = next_addr;
}
if (read_memory_integer (return_data_save + 12, 4) == 0xed6d5103)
{
next_addr -= 12;
saved_regs_addr->regs[F0_REGNUM + 5] = next_addr;
}
if (read_memory_integer(return_data_save + 16, 4) == 0xed6d4103)
{
next_addr -= 12;
saved_regs_addr->regs[F0_REGNUM + 4] = next_addr;
}
saved_regs_addr->regs[SP_REGNUM] = next_addr;
saved_regs_addr->regs[PC_REGNUM] = frame - 4;
saved_regs_addr->regs[PS_REGNUM] = frame - 4;
saved_regs_addr->regs[FP_REGNUM] = frame - 12;
}
static void static void
print_fpu_flags(flags) print_fpu_flags(flags)
int flags; int flags;
@ -404,3 +458,31 @@ arm_float_info()
fputs("flags: ", stdout); fputs("flags: ", stdout);
print_fpu_flags(status); print_fpu_flags(status);
} }
void
_initialize_arm_tdep ()
{
tm_print_insn = print_insn_arm;
}
/* FIXME: Fill in with the 'right thing', see asm
template in arm-convert.s */
void
convert_from_extended (ptr, dbl)
void *ptr;
double *dbl;
{
*dbl = *(double*)ptr;
}
void
convert_to_extended (dbl, ptr)
void *ptr;
double *dbl;
{
*(double*)ptr = *dbl;
}

2
gdb/config/arm/arm.mt
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@ -1,3 +1,3 @@
# Target: Acorn RISC machine running RISCiX (4.3bsd) # Target: Acorn RISC machine running RISCiX (4.3bsd)
TDEPFILES= arm-tdep.o TDEPFILES= arm-tdep.o remote-sim.o ../sim/arm/libsim.a
TM_FILE= tm-arm.h TM_FILE= tm-arm.h