mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 20:14:06 +08:00
b9e1c0d643
* vaxbsd-nat.c: Tweak comment. * Makefile.in (ALLDEPFILES): Add vax-nat.c, vaxbsd-nat.c and vaxnbsd-tdep.c. (vax-nat.o): New dependency. * configure.host (vax-*-bsd*, vax-*-ultrix*): Set gdb_host to vax. (vax-*-ultrix2*): Remove. * config/vax/vax.mh: New file. * config/vax/nm-vax.h (vax_kernel_u_addr): New extern declaration. (KERNEL_U_ADDR): Define as vax_kernel_u_addr. (vax_register_u_addr): New prototype. (REGISTER_U_ADDR): Define using vax_register_u_addr. * config/vax/vaxult2.mh: Remove file. * config/vax/vaxult.mh: Remove file. * config/vax/vaxbsd.mh: Remove file. * config/vax/vax.mt (TM_FILE): Remove. * config/vax/tm-vaxbsd.h: Remove file.
107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
/* Native-dependent code for VAX UNIXen (including older BSD's).
|
||
|
||
Copyright 2004 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||
Boston, MA 02111-1307, USA. */
|
||
|
||
#include "defs.h"
|
||
#include "inferior.h"
|
||
|
||
#include "gdb_assert.h"
|
||
#include <sys/types.h>
|
||
#include <sys/dir.h>
|
||
#include <sys/user.h>
|
||
|
||
#ifdef HAVE_SYS_PTRACE_H
|
||
#include <sys/ptrace.h>
|
||
#endif
|
||
|
||
#ifndef PT_READ_U
|
||
#define PT_READ_U 3
|
||
#endif
|
||
|
||
#ifdef SYS_REG_H
|
||
/* UNIX 32V and derivatives (including 3BSD). */
|
||
#include <sys/reg.h>
|
||
#else
|
||
/* 4.2BSD and derivatives. */
|
||
#include <machine/reg.h>
|
||
#endif
|
||
|
||
#include "vax-tdep.h"
|
||
|
||
/* Address of the user structure. This is the the value for 32V; 3BSD
|
||
uses a different value, but hey, who's still using those systems? */
|
||
CORE_ADDR vax_kernel_u_addr = 0x80020000;
|
||
|
||
/* Location of the user's stored registers; usage is `u.u_ar0[XX]'.
|
||
For 4.2BSD and ULTRIX these are negative! See <machine/reg.h>. */
|
||
static int vax_register_index[] =
|
||
{
|
||
R0, R1, R2, R3, R4, R5,
|
||
R6, R7, R8, R9, R10, R11,
|
||
AP, FP, SP, PC, PS
|
||
};
|
||
|
||
CORE_ADDR
|
||
vax_register_u_addr (CORE_ADDR u_ar0, int regnum)
|
||
{
|
||
gdb_assert (regnum >= 0 && regnum < ARRAY_SIZE (vax_register_index));
|
||
|
||
/* Type is `int *u_ar0'. See <sys/user.h>. */
|
||
return u_ar0 + vax_register_index[regnum - VAX_R0_REGNUM] * 4;
|
||
}
|
||
|
||
|
||
CORE_ADDR
|
||
vax_register_u_offset (int regnum)
|
||
{
|
||
size_t u_ar0_offset = offsetof (struct user, u_ar0);
|
||
CORE_ADDR u_ar0;
|
||
int pid;
|
||
|
||
errno = 0;
|
||
pid = PIDGET (inferior_ptid);
|
||
u_ar0 = ptrace (PT_READ_U, pid, u_ar0_offset, 0);
|
||
if (errno)
|
||
perror_with_name ("Unable to determine location of registers");
|
||
|
||
return vax_register_u_addr (u_ar0, regnum) - vax_kernel_u_addr;
|
||
}
|
||
|
||
|
||
#include <nlist.h>
|
||
|
||
#ifndef _PATH_UNIX
|
||
#define _PATH_UNIX "/vmunix"
|
||
#endif
|
||
|
||
/* Provide a prototype to silence -Wmissing-prototypes. */
|
||
void _initialize_vax_nat (void);
|
||
|
||
void
|
||
_initialize_vax_nat (void)
|
||
{
|
||
struct nlist names[2];
|
||
|
||
names[0].n_name = "_u";
|
||
names[1].n_name = NULL;
|
||
if (nlist (_PATH_UNIX, names) == 0)
|
||
vax_kernel_u_addr = names[0].n_value;
|
||
}
|