1991-03-28 16:28:29 +00:00
|
|
|
|
/* Definitions to make GDB run on a merlin under utek 2.1
|
|
|
|
|
|
Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
|
|
|
|
|
|
|
|
|
|
|
|
This file is part of GDB.
|
|
|
|
|
|
|
1991-06-04 07:31:55 +00:00
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
1991-03-28 16:28:29 +00:00
|
|
|
|
it under the terms of the GNU General Public License as published by
|
1991-06-04 07:31:55 +00:00
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
|
(at your option) any later version.
|
1991-03-28 16:28:29 +00:00
|
|
|
|
|
1991-06-04 07:31:55 +00:00
|
|
|
|
This program is distributed in the hope that it will be useful,
|
1991-03-28 16:28:29 +00:00
|
|
|
|
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
|
1991-06-04 07:31:55 +00:00
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
1991-03-28 16:28:29 +00:00
|
|
|
|
|
|
|
|
|
|
/* This machine doesn't have the siginterrupt call. */
|
|
|
|
|
|
#define NO_SIGINTERRUPT
|
|
|
|
|
|
|
|
|
|
|
|
/* Under Utek, a ptrace'd process can be the only active process for
|
|
|
|
|
|
an executable. Therefore instead of /bin/sh use gdb-sh (which should
|
|
|
|
|
|
just be a copy of /bin/sh which is world readable and writeable). */
|
|
|
|
|
|
#define SHELL_FILE "/usr/gnu/lib/gdb-sh"
|
|
|
|
|
|
|
|
|
|
|
|
#define HOST_BYTE_ORDER LITTLE_ENDIAN
|
|
|
|
|
|
|
|
|
|
|
|
/* This is the amount to subtract from u.u_ar0
|
|
|
|
|
|
to get the offset in the core file of the register values. */
|
|
|
|
|
|
|
|
|
|
|
|
#define KERNEL_U_ADDR (0xfef000)
|
|
|
|
|
|
|
|
|
|
|
|
#define REGISTER_U_ADDR(addr, blockend, regno) \
|
|
|
|
|
|
{ \
|
|
|
|
|
|
switch (regno) { \
|
|
|
|
|
|
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: \
|
|
|
|
|
|
addr = blockend + (R0 - regno) * sizeof (int); break; \
|
|
|
|
|
|
case PC_REGNUM: \
|
|
|
|
|
|
addr = blockend + PC * sizeof (int); break; \
|
|
|
|
|
|
case SP_REGNUM: \
|
|
|
|
|
|
addr = blockend + SP * sizeof (int); break; \
|
|
|
|
|
|
case FP_REGNUM: \
|
|
|
|
|
|
addr = blockend + FP * sizeof (int); break; \
|
|
|
|
|
|
case PS_REGNUM: \
|
|
|
|
|
|
addr = blockend + 12 * sizeof (int); break; \
|
|
|
|
|
|
case FPS_REGNUM: \
|
|
|
|
|
|
addr = 108; break; \
|
|
|
|
|
|
case FP0_REGNUM + 0: case FP0_REGNUM + 1: \
|
|
|
|
|
|
case FP0_REGNUM + 2: case FP0_REGNUM + 3: \
|
|
|
|
|
|
case FP0_REGNUM + 4: case FP0_REGNUM + 5: \
|
|
|
|
|
|
case FP0_REGNUM + 6: case FP0_REGNUM + 7: \
|
|
|
|
|
|
addr = 76 + (regno - FP0_REGNUM) * sizeof (float); break; \
|
|
|
|
|
|
case LP0_REGNUM + 0: case LP0_REGNUM + 1: \
|
|
|
|
|
|
case LP0_REGNUM + 2: case LP0_REGNUM + 3: \
|
|
|
|
|
|
addr = 76 + (regno - LP0_REGNUM) * sizeof (double); break; \
|
|
|
|
|
|
default: \
|
|
|
|
|
|
printf ("bad argument to REGISTER_U_ADDR %d\n", regno); \
|
|
|
|
|
|
abort (); \
|
|
|
|
|
|
} \
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Compensate for lack of `vprintf' function. */
|
|
|
|
|
|
#define MISSING_VPRINTF
|
|
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
/* Interface definitions for kernel debugger KDB. */
|
|
|
|
|
|
|
|
|
|
|
|
/* Map machine fault codes into signal numbers.
|
|
|
|
|
|
First subtract 0, divide by 4, then index in a table.
|
|
|
|
|
|
Faults for which the entry in this table is 0
|
|
|
|
|
|
are not handled by KDB; the program's own trap handler
|
|
|
|
|
|
gets to handle then. */
|
|
|
|
|
|
|
|
|
|
|
|
#define FAULT_CODE_ORIGIN 0
|
|
|
|
|
|
#define FAULT_CODE_UNITS 4
|
|
|
|
|
|
#define FAULT_TABLE \
|
|
|
|
|
|
{ 0, SIGKILL, SIGSEGV, 0, 0, 0, 0, 0, \
|
|
|
|
|
|
0, 0, SIGTRAP, SIGTRAP, 0, 0, 0, 0, \
|
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0}
|
|
|
|
|
|
|
|
|
|
|
|
/* Start running with a stack stretching from BEG to END.
|
|
|
|
|
|
BEG and END should be symbols meaningful to the assembler.
|
|
|
|
|
|
This is used only for kdb. */
|
|
|
|
|
|
|
|
|
|
|
|
#define INIT_STACK(beg, end) \
|
|
|
|
|
|
{ asm (".globl end"); \
|
|
|
|
|
|
asm ("movl $ end, sp"); \
|
|
|
|
|
|
asm ("clrl fp"); }
|
|
|
|
|
|
|
|
|
|
|
|
/* Push the frame pointer register on the stack. */
|
|
|
|
|
|
#define PUSH_FRAME_PTR \
|
|
|
|
|
|
asm ("pushl fp");
|
|
|
|
|
|
|
|
|
|
|
|
/* Copy the top-of-stack to the frame pointer register. */
|
|
|
|
|
|
#define POP_FRAME_PTR \
|
|
|
|
|
|
asm ("movl (sp), fp");
|
|
|
|
|
|
|
|
|
|
|
|
/* After KDB is entered by a fault, push all registers
|
|
|
|
|
|
that GDB thinks about (all NUM_REGS of them),
|
|
|
|
|
|
so that they appear in order of ascending GDB register number.
|
|
|
|
|
|
The fault code will be on the stack beyond the last register. */
|
|
|
|
|
|
|
|
|
|
|
|
#define PUSH_REGISTERS \
|
|
|
|
|
|
{ asm ("pushl 8(sp)"); \
|
|
|
|
|
|
asm ("pushl 8(sp)"); \
|
|
|
|
|
|
asm ("pushal 0x14(sp)"); \
|
|
|
|
|
|
asm ("pushr $037777"); }
|
|
|
|
|
|
|
|
|
|
|
|
/* Assuming the registers (including processor status) have been
|
|
|
|
|
|
pushed on the stack in order of ascending GDB register number,
|
|
|
|
|
|
restore them and return to the address in the saved PC register. */
|
|
|
|
|
|
|
|
|
|
|
|
#define POP_REGISTERS \
|
|
|
|
|
|
{ asm ("popr $037777"); \
|
|
|
|
|
|
asm ("subl2 $8,(sp)"); \
|
|
|
|
|
|
asm ("movl (sp),sp"); \
|
|
|
|
|
|
asm ("rei"); }
|
|
|
|
|
|
#endif /* 0 */
|
