/* Low level DECstation interface to ptrace, for GDB when running native.
- Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1991, 1992, 1995 Free Software Foundation, Inc.
Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
-This file is part of GDB.
+ 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 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.
+ 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. */
+ 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"
: regno >= FP0_REGNUM ? FPR_BASE + (regno - FP0_REGNUM) \
: 0)
-static char zerobuf[MAX_REGISTER_RAW_SIZE];
+static char zerobuf[MAX_REGISTER_RAW_SIZE] =
+{0};
+
+static void fetch_core_registers PARAMS ((char *, unsigned, int, CORE_ADDR));
/* Get all registers from the inferior */
{
regaddr = REGISTER_PTRACE_ADDR (regno);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
- {
- *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
+ {
+ *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, 0);
- regaddr += sizeof (int);
- }
+ regaddr += sizeof (int);
+ }
supply_register (regno, buf);
}
register unsigned int regaddr;
char buf[80];
- if (regno == 0)
- return;
-
if (regno > 0)
{
+ if (regno == ZERO_REGNUM || regno == PS_REGNUM
+ || regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
+ || regno == FCRIR_REGNUM || regno == FP_REGNUM
+ || (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
+ return;
regaddr = REGISTER_PTRACE_ADDR (regno);
errno = 0;
ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
else
{
for (regno = 0; regno < NUM_REGS; regno++)
- {
- if (regno == ZERO_REGNUM || regno == PS_REGNUM
- || regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
- || regno == FCRIR_REGNUM || regno == FP_REGNUM
- || (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
- continue;
- regaddr = register_addr (regno, 1);
- errno = 0;
- ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
- read_register (regno));
- if (errno != 0)
- {
- sprintf (buf, "writing all regs, number %d", regno);
- perror_with_name (buf);
- }
- }
+ store_inferior_registers (regno);
}
}
This routine returns true on success. */
int
-get_longjmp_target(pc)
+get_longjmp_target (pc)
CORE_ADDR *pc;
{
CORE_ADDR jb_addr;
+ char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
- jb_addr = read_register(A0_REGNUM);
+ jb_addr = read_register (A0_REGNUM);
- if (target_read_memory(jb_addr + JB_PC * JB_ELEMENT_SIZE, pc,
- sizeof(CORE_ADDR)))
+ if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
+ TARGET_PTR_BIT / TARGET_CHAR_BIT))
return 0;
- SWAP_TARGET_AND_HOST(pc, sizeof(CORE_ADDR));
+ *pc = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
return 1;
}
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).
+ 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.
+ 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
+static 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;
+ CORE_ADDR 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. */
+ 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,
core file without a upage, reg_ptr will be zero and this is all a big
NOP. */
if (reg_ptr > core_reg_size)
+#ifdef KERNEL_U_ADDR
reg_ptr -= KERNEL_U_ADDR;
+#else
+ error ("Old mips core file can't be processed on this machine.");
+#endif
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 {
- supply_register (regno, core_reg_sect + addr);
- }
+ if (addr >= core_reg_size)
+ {
+ if (bad_reg < 0)
+ bad_reg = regno;
+ }
+ else
+ {
+ supply_register (regno, core_reg_sect + addr);
+ }
}
if (bad_reg >= 0)
{
- error ("Register %s not found in core file.", reg_names[bad_reg]);
+ error ("Register %s not found in core file.", REGISTER_NAME (bad_reg));
}
supply_register (ZERO_REGNUM, zerobuf);
/* Frame ptr reg must appear to be 0; it is faked by stack handling code. */
/* 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
+CORE_ADDR
register_addr (regno, blockend)
int regno;
- int blockend;
+ CORE_ADDR blockend;
{
- int addr;
+ CORE_ADDR addr;
if (regno < 0 || regno >= NUM_REGS)
error ("Invalid register number %d.", regno);
return addr;
}
+\f
+
+/* Register that we are able to handle mips core file formats.
+ FIXME: is this really bfd_target_unknown_flavour? */
+
+static struct core_fns mips_core_fns =
+{
+ bfd_target_unknown_flavour,
+ fetch_core_registers,
+ NULL
+};
+
+void
+_initialize_core_mips ()
+{
+ add_core_fns (&mips_core_fns);
+}
projects / deliverable / binutils-gdb.git / blobdiff