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m88k native support

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This commit is contained in:
K. Richard Pixley 1992-10-16 20:53:46 +00:00
parent ab29288c1f
commit 173a4f1bda
10 changed files with 273 additions and 13 deletions
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4
gdb/.Sanitize
View file

@ -125,9 +125,9 @@ m2-exp.y
m68k-pinsn.c
m68k-stub.c
m68k-tdep.c
m88k-nat.c
m88k-pinsn.c
m88k-tdep.c
m88k-xdep.c
mach386-xdep.c
main.c
maint.c
@ -142,9 +142,11 @@ munch
news-xdep.c
nindy-share
nindy-tdep.c
nm-delta88.h
nm-i386bsd.h
nm-irix3.h
nm-irix4.h
nm-m88k.h
nm-mips.h
nm-news.h
nm-rs6000.h

13
gdb/ChangeLog
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@ -1,3 +1,16 @@
Fri Oct 16 13:06:08 1992 K. Richard Pixley (rich@sendai.cygnus.com)
Native support for m88k (untested).
* xm-delta88.h, xm-m88k.h (REGISTER_U_ADDR,
FETCH_INFERIOR_REGISTERS): removed.
* config/m88k.mh, config/delta88.mh (XDEPFILES): infptrace.o
inftarg.o fork-child.o m88k-xdep.o removed to NATDEPFILES.
(NAT_FILE, NATDEPFILES): new macros.
* config/m88k.mt, config/delta88.mt (TDEPFILES): removed exec.o.
* m88k-nat.c, nm-m88k.h, nm-delta88.h: new files.o.
* m88k-xdep.c: removed.
Fri Oct 16 04:16:30 1992 John Gilmore (gnu@cygnus.com)
* i386b-nat.c: Comment changes.

4
gdb/config/delta88.mh
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@ -1,6 +1,8 @@
# Host: Motorola 88000 running DGUX
XDEPFILES= infptrace.o inftarg.o fork-child.o m88k-xdep.o
XDEPFILES=
XM_FILE= xm-delta88.h
NAT_FILE= nm-m88k.h
NATDEPFILES= exec.o infptrace.o inftarg.o fork-child.o m88k-nat.o
REGEX=regex.o
REGEX1=regex.o
ALLOCA=alloca.o

2
gdb/config/delta88.mt
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@ -1,3 +1,3 @@
# Target: Motorola 88000
TDEPFILES= m88k-tdep.o m88k-pinsn.o exec.o
TDEPFILES= m88k-tdep.o m88k-pinsn.o
TM_FILE= tm-delta88.h

4
gdb/config/m88k.mh
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@ -1,3 +1,5 @@
# Host: Motorola 88000 running DGUX
XDEPFILES= infptrace.o inftarg.o fork-child.o m88k-xdep.o
XDEPFILES=
XM_FILE= xm-m88k.h
NAT_FILE= nm-m88k.h
NATDEPFILES= exec.o infptrace.o inftarg.o fork-child.o m88k-nat.o

2
gdb/config/m88k.mt
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@ -1,3 +1,3 @@
# Target: Motorola 88000 Binary Compatability Standard
TDEPFILES= m88k-tdep.o m88k-pinsn.o exec.o
TDEPFILES= m88k-tdep.o m88k-pinsn.o
TM_FILE= tm-m88k.h

225
gdb/m88k-nat.c Normal file
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@ -0,0 +1,225 @@
/* Native-dependent Motorola 88xxx support for GDB, the GNU Debugger.
Copyright 1988, 1990, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#ifdef USG
#include <sys/types.h>
#endif
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include "gdbcore.h"
#include <sys/user.h>
#ifndef USER /* added to support BCS ptrace_user */
#define USER ptrace_user
#endif
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/file.h>
#include <sys/stat.h>
#include "symtab.h"
#include "setjmp.h"
#include "value.h"
#ifdef DELTA88
/* #include <sys/ptrace.h> */
/* define offsets to the pc instruction offsets in ptrace_user struct */
#define SXIP_OFFSET (char *)&u.pt_sigframe.sig_sxip - (char *)&u
#define SNIP_OFFSET (char *)&u.pt_sigframe.sig_snip - (char *)&u
#define SFIP_OFFSET (char *)&u.pt_sigframe.sig_sfip - (char *)&u
#else
/* define offsets to the pc instruction offsets in ptrace_user struct */
#define SXIP_OFFSET (char *)&u.pt_sigframe.dg_sigframe.sc_sxip - (char *)&u
#define SNIP_OFFSET (char *)&u.pt_sigframe.dg_sigframe.sc_snip - (char *)&u
#define SFIP_OFFSET (char *)&u.pt_sigframe.dg_sigframe.sc_sfip - (char *)&u
#endif
extern int have_symbol_file_p();
extern jmp_buf stack_jmp;
extern int errno;
extern char registers[REGISTER_BYTES];
void
fetch_inferior_registers (regno)
int regno; /* Original value discarded */
{
register unsigned int regaddr;
char buf[MAX_REGISTER_RAW_SIZE];
register int i;
struct USER u;
unsigned int offset;
offset = (char *) &u.pt_r0 - (char *) &u;
regaddr = offset; /* byte offset to r0;*/
/* offset = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) - KERNEL_U_ADDR; */
for (regno = 0; regno < NUM_REGS; regno++)
{
/*regaddr = register_addr (regno, offset);*/
/* 88k enhancement */
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
*(int *) &buf[i] = ptrace (3, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (int);
}
supply_register (regno, buf);
}
/* now load up registers 36 - 38; special pc registers */
*(int *) &buf[0] = ptrace (3,inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET ,0);
supply_register (SXIP_REGNUM, buf);
*(int *) &buf[0] = ptrace (3, inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET,0);
supply_register (SNIP_REGNUM, buf);
*(int *) &buf[0] = ptrace (3, inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET,0);
supply_register (SFIP_REGNUM, buf);
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
void
store_inferior_registers (regno)
int regno;
{
register unsigned int regaddr;
char buf[80];
struct USER u;
unsigned int offset = (char *) &u.pt_r0 - (char *) &u;
regaddr = offset;
if (regno >= 0)
{
/* regaddr = register_addr (regno, offset); */
if (regno < PC_REGNUM)
{
regaddr = offset + regno * sizeof (int);
errno = 0;
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
else if (regno == SXIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register(regno));
else if (regno == SNIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register(regno));
else if (regno == SFIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register(regno));
else printf ("Bad register number for store_inferior routine\n");
}
else {
for (regno = 0; regno < NUM_REGS - 3; regno++)
{
/* regaddr = register_addr (regno, offset); */
errno = 0;
regaddr = offset + regno * sizeof (int);
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET,read_register(SXIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET,read_register(SNIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET,read_register(SFIP_REGNUM));
}
}
/* blockend is the address of the end of the user structure */
m88k_register_u_addr (blockend, regnum)
{
struct USER u;
int ustart = blockend - sizeof (struct USER);
switch (regnum)
{
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
case 17:
case 18:
case 19:
case 20:
case 21:
case 22:
case 23:
case 24:
case 25:
case 26:
case 27:
case 28:
case 29:
case 30:
case 31: return (ustart + ((int) &u.pt_r0 - (int) &u) + sizeof(REGISTER_TYPE) * regnum);
case PSR_REGNUM: return (ustart + ((int) &u.pt_psr - (int) &u));
case FPSR_REGNUM: return (ustart + ((int) &u.pt_fpsr - (int) &u));
case FPCR_REGNUM: return (ustart + ((int) &u.pt_fpcr - (int) &u));
case SXIP_REGNUM: return (ustart + SXIP_OFFSET);
case SNIP_REGNUM: return (ustart + SNIP_OFFSET);
case SFIP_REGNUM: return (ustart + SFIP_OFFSET);
default: return (blockend + sizeof (REGISTER_TYPE) * regnum);
}
}

24
gdb/nm-m88k.h Normal file
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@ -0,0 +1,24 @@
/* Native support macros for m88k, for GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define FETCH_INFERIOR_REGISTERS
#define REGISTER_U_ADDR(addr, blockend, regno) \
(addr) = m88k_register_u_addr ((blockend),(regno));

4
gdb/xm-delta88.h
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@ -42,7 +42,3 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define KERNEL_U_ADDR 0
#define REGISTER_U_ADDR(addr, blockend, regno) \
(addr) = m88k_register_u_addr ((blockend),(regno));
#define FETCH_INFERIOR_REGISTERS

4
gdb/xm-m88k.h
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@ -60,7 +60,3 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define KERNEL_U_ADDR 0
#define REGISTER_U_ADDR(addr, blockend, regno) \
(addr) = m88k_register_u_addr ((blockend),(regno));
#define FETCH_INFERIOR_REGISTERS