old-cross-binutils/gdb/hppa-coredep.c
John Gilmore 5140562f37 * tm-hppa.h: New file, architectural definition of HP PA.
* tm-hppabsd.h, tm-hppahpux.h:  Shrink to deltas from tm-hppa.h.

* am29k-pinsn.c, am29k-tdep.c, copying.awk, copying.c,
hppa-coredep.c, hppa-pinsn.c, hppabsd-core.c, hppabsd-tdep.c,
hppabsd-xdep.c, hppahpux-tdep.c, hppahpux-xdep.c, remote-udi.c,
ser-go32.c, xcoffsolib.c:  Remove <stdio.h> which is already in
"defs.h".

* hppa-coredep.c, hppa-pinsn.c, hppabsd-core.c, hppabsd-tdep.c,
hppabsd-xdep.c, hppahpux-tdep.c, hppahpux-xdep.c, xcoffsolib.c,
xcoffsolib.h, xm-go32.h, xm-hppabsd.h, xm-hppahpux.h:  Copyrights.
1992-06-25 11:15:47 +00:00

121 lines
3.6 KiB
C

/* Extract registers from an HP-PA core file, for GDB.
Copyright (C) 1988, 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. */
/* core.c is supposed to be the more machine-independent aspects of this;
this file is more machine-specific. */
#include "defs.h"
#include "gdbcore.h"
/* These are needed on various systems to expand REGISTER_U_ADDR. */
/* FIXME: Remove any not needed on HP-PA. */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/user.h>
#ifndef USG
#include <sys/ptrace.h>
#endif
/* Extract the register values out of the core file and store
them where `read_register' will find them.
CORE_REG_SECT points to the register values themselves, read into memory.
CORE_REG_SIZE is the size of that area.
WHICH says which set of registers we are handling (0 = int, 2 = float
on machines where they are discontiguous).
REG_ADDR is the offset from u.u_ar0 to the register values relative to
core_reg_sect. This is used with old-fashioned core files to
locate the registers in a large upage-plus-stack ".reg" section.
Original upage address X is at location core_reg_sect+x+reg_addr.
*/
void
fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
char *core_reg_sect;
unsigned core_reg_size;
int which;
unsigned reg_addr;
{
register int regno;
register unsigned int addr;
int bad_reg = -1;
register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */
/* If u.u_ar0 was an absolute address in the core file, relativize it now,
so we can use it as an offset into core_reg_sect. When we're done,
"register 0" will be at core_reg_sect+reg_ptr, and we can use
register_addr to offset to the other registers. If this is a modern
core file without a upage, reg_ptr will be zero and this is all a big
NOP. */
if (reg_ptr > core_reg_size)
reg_ptr -= KERNEL_U_ADDR;
if (reg_ptr > core_reg_size)
fprintf (stderr, "Can't find registers in core file\n");
for (regno = 0; regno < NUM_REGS; regno++)
{
addr = register_addr (regno, reg_ptr);
if (addr >= core_reg_size) {
if (bad_reg < 0)
bad_reg = regno;
} else {
if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
core_reg_sect[addr +3] &= ~0x3;
supply_register (regno, core_reg_sect + addr);
}
}
if (bad_reg > 0)
{
error ("Register %s not found in core file.", reg_names[bad_reg]);
}
}
#ifdef REGISTER_U_ADDR
/* Return the address in the core dump or inferior of register REGNO.
BLOCKEND is the address of the end of the user structure. */
unsigned int
register_addr (regno, blockend)
int regno;
int blockend;
{
int addr;
if (regno < 0 || regno >= NUM_REGS)
error ("Invalid register number %d.", regno);
REGISTER_U_ADDR (addr, blockend, regno);
return addr;
}
#endif /* REGISTER_U_ADDR */