mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
c60c0f5f88
* gregset.h: New file. Typedefs for gdb_gregset_t and
gdb_fpregset_t, prototypes for supply_gregset and friends.
* procfs.c: Include gregset.h. Delete local prototypes for
supply_gregset etc., and local typedef gdb_gregset_t etc.
* sol-thread.c: Include gregset.h, delete local prototypes,
add appropriate casts to gdb_gregset_t.
* uw-thread.c, lin-thread.c, core-sol2.c, core-regset.c,
sparc-tdep.c, ptx4-nat.c, ppc-linux-nat.c, mipsv4-nat.c,
m88k-nat.c, m68klinux-nat.c, m68k-tdep.c, irix5-nat.c,
irix4-nat.c, ia64-linux-nat.c, i386v4-nat.c, cxux-nat.c,
arm-linux-nat.c, alpha-nat.c: Include gregset.h.
* config/nm-linux.h: Define GDB_GREGSET_T, GDB_FPREGET_T.
* config/sparc/tm-sun4sol2.h: Ditto.
294 lines
8.4 KiB
C
294 lines
8.4 KiB
C
/* 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "frame.h"
|
|
#include "inferior.h"
|
|
|
|
#include <sys/types.h>
|
|
#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 "gdb_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;
|
|
|
|
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;
|
|
|
|
/* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
|
|
svr3 doesn't run on an 88110, or the kernel isolates the different (not
|
|
completely sure this is true, but seems to be. */
|
|
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_unfiltered ("Bad register number for store_inferior routine\n");
|
|
}
|
|
else
|
|
{
|
|
for (regno = 0; regno < PC_REGNUM; 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) + REGISTER_SIZE * 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:
|
|
if (regnum < NUM_REGS)
|
|
/* The register is one of those which is not defined...
|
|
give it zero */
|
|
return (ustart + ((int) &u.pt_r0 - (int) &u));
|
|
else
|
|
return (blockend + REGISTER_SIZE * regnum);
|
|
}
|
|
}
|
|
|
|
#ifdef USE_PROC_FS
|
|
|
|
#include <sys/procfs.h>
|
|
|
|
/* Prototypes for supply_gregset etc. */
|
|
#include "gregset.h"
|
|
|
|
/* Given a pointer to a general register set in /proc format (gregset_t *),
|
|
unpack the register contents and supply them as gdb's idea of the current
|
|
register values. */
|
|
|
|
void
|
|
supply_gregset (gregsetp)
|
|
gregset_t *gregsetp;
|
|
{
|
|
register int regi;
|
|
register greg_t *regp = (greg_t *) gregsetp;
|
|
|
|
for (regi = 0; regi <= SP_REGNUM; regi++)
|
|
supply_register (regi, (char *) (regp + regi));
|
|
|
|
supply_register (SXIP_REGNUM, (char *) (regp + R_XIP));
|
|
supply_register (SNIP_REGNUM, (char *) (regp + R_NIP));
|
|
supply_register (SFIP_REGNUM, (char *) (regp + R_FIP));
|
|
supply_register (PSR_REGNUM, (char *) (regp + R_PSR));
|
|
supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
|
|
supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
|
|
}
|
|
|
|
void
|
|
fill_gregset (gregsetp, regno)
|
|
gregset_t *gregsetp;
|
|
int regno;
|
|
{
|
|
int regi;
|
|
register greg_t *regp = (greg_t *) gregsetp;
|
|
|
|
for (regi = 0; regi <= R_R31; regi++)
|
|
if ((regno == -1) || (regno == regi))
|
|
*(regp + regi) = *(int *) ®isters[REGISTER_BYTE (regi)];
|
|
|
|
if ((regno == -1) || (regno == SXIP_REGNUM))
|
|
*(regp + R_XIP) = *(int *) ®isters[REGISTER_BYTE (SXIP_REGNUM)];
|
|
if ((regno == -1) || (regno == SNIP_REGNUM))
|
|
*(regp + R_NIP) = *(int *) ®isters[REGISTER_BYTE (SNIP_REGNUM)];
|
|
if ((regno == -1) || (regno == SFIP_REGNUM))
|
|
*(regp + R_FIP) = *(int *) ®isters[REGISTER_BYTE (SFIP_REGNUM)];
|
|
if ((regno == -1) || (regno == PSR_REGNUM))
|
|
*(regp + R_PSR) = *(int *) ®isters[REGISTER_BYTE (PSR_REGNUM)];
|
|
if ((regno == -1) || (regno == FPSR_REGNUM))
|
|
*(regp + R_FPSR) = *(int *) ®isters[REGISTER_BYTE (FPSR_REGNUM)];
|
|
if ((regno == -1) || (regno == FPCR_REGNUM))
|
|
*(regp + R_FPCR) = *(int *) ®isters[REGISTER_BYTE (FPCR_REGNUM)];
|
|
}
|
|
|
|
#endif /* USE_PROC_FS */
|