--- /dev/null
+/*
+ * Ported by the State University of New York at Buffalo by the Distributed
+ * Computer Systems Lab, Department of Computer Science, 1991.
+ */
+
+#ifndef tahoe_opcodeT
+#define tahoe_opcodeT int
+#endif /* no tahoe_opcodeT */
+
+struct vot_wot /* tahoe opcode table: wot to do with this */
+ /* particular opcode */
+{
+ char * args; /* how to compile said opcode */
+ tahoe_opcodeT code; /* op-code (may be > 8 bits!) */
+};
+
+struct vot /* tahoe opcode text */
+{
+ char * name; /* opcode name: lowercase string [key] */
+ struct vot_wot detail; /* rest of opcode table [datum] */
+};
+
+#define vot_how args
+#define vot_code code
+#define vot_detail detail
+#define vot_name name
+
+static struct vot
+votstrs[] =
+{
+{ "halt", {"", 0x00 } },
+{ "sinf", {"", 0x05 } },
+{ "ldf", {"rl", 0x06 } },
+{ "ldd", {"rq", 0x07 } },
+{ "addb2", {"rbmb", 0x08 } },
+{ "movb", {"rbwb", 0x09 } },
+{ "addw2", {"rwmw", 0x0a } },
+{ "movw", {"rwww", 0x0b } },
+{ "addl2", {"rlml", 0x0c } },
+{ "movl", {"rlwl", 0x0d } },
+{ "bbs", {"rlvlbw", 0x0e } },
+{ "nop", {"", 0x10 } },
+{ "brb", {"bb", 0x11 } },
+{ "brw", {"bw", 0x13 } },
+{ "cosf", {"", 0x15 } },
+{ "lnf", {"rl", 0x16 } },
+{ "lnd", {"rq", 0x17 } },
+{ "addb3", {"rbrbwb", 0x18 } },
+{ "cmpb", {"rbwb", 0x19 } },
+{ "addw3", {"rwrwww", 0x1a } },
+{ "cmpw", {"rwww", 0x1b } },
+{ "addl3", {"rlrlwl", 0x1c } },
+{ "cmpl", {"rlwl", 0x1d } },
+{ "bbc", {"rlvlbw", 0x1e } },
+{ "rei", {"", 0x20 } },
+{ "bneq", {"bb", 0x21 } },
+{ "bnequ", {"bb", 0x21 } },
+{ "cvtwl", {"rwwl", 0x23 } },
+{ "stf", {"wl", 0x26 } },
+{ "std", {"wq", 0x27 } },
+{ "subb2", {"rbmb", 0x28 } },
+{ "mcomb", {"rbwb", 0x29 } },
+{ "subw2", {"rwmw", 0x2a } },
+{ "mcomw", {"rwww", 0x2b } },
+{ "subl2", {"rlml", 0x2c } },
+{ "mcoml", {"rlwl", 0x2d } },
+{ "emul", {"rlrlrlwq", 0x2e } },
+{ "aoblss", {"rlmlbw", 0x2f } },
+{ "bpt", {"", 0x30 } },
+{ "beql", {"bb", 0x31 } },
+{ "beqlu", {"bb", 0x31 } },
+{ "cvtwb", {"rwwb", 0x33 } },
+{ "logf", {"", 0x35 } },
+{ "cmpf", {"rl", 0x36 } },
+{ "cmpd", {"rq", 0x37 } },
+{ "subb3", {"rbrbwb", 0x38 } },
+{ "bitb", {"rbrb", 0x39 } },
+{ "subw3", {"rwrwww", 0x3a } },
+{ "bitw", {"rwrw", 0x3b } },
+{ "subl3", {"rlrlwl", 0x3c } },
+{ "bitl", {"rlrl", 0x3d } },
+{ "ediv", {"rlrqwlwl", 0x3e } },
+{ "aobleq", {"rlmlbw", 0x3f } },
+{ "ret", {"", 0x40 } },
+{ "bgtr", {"bb", 0x41 } },
+{ "sqrtf", {"", 0x45 } },
+{ "cmpf2", {"rl", 0x46 } },
+{ "cmpd2", {"rqrq", 0x47 } },
+{ "shll", {"rbrlwl", 0x48 } },
+{ "clrb", {"wb", 0x49 } },
+{ "shlq", {"rbrqwq", 0x4a } },
+{ "clrw", {"ww", 0x4b } },
+{ "mull2", {"rlml", 0x4c } },
+{ "clrl", {"wl", 0x4d } },
+{ "shal", {"rbrlwl", 0x4e } },
+{ "bleq", {"bb", 0x51 } },
+{ "expf", {"", 0x55 } },
+{ "tstf", {"", 0x56 } },
+{ "tstd", {"", 0x57 } },
+{ "shrl", {"rbrlwl", 0x58 } },
+{ "tstb", {"rb", 0x59 } },
+{ "shrq", {"rbrqwq", 0x5a } },
+{ "tstw", {"rw", 0x5b } },
+{ "mull3", {"rlrlwl", 0x5c } },
+{ "tstl", {"rl", 0x5d } },
+{ "shar", {"rbrlwl", 0x5e } },
+{ "bbssi", {"rlmlbw", 0x5f } },
+{ "ldpctx", {"", 0x60 } },
+{ "pushd", {"", 0x67 } },
+{ "incb", {"mb", 0x69 } },
+{ "incw", {"mw", 0x6b } },
+{ "divl2", {"rlml", 0x6c } },
+{ "incl", {"ml", 0x6d } },
+{ "cvtlb", {"rlwb", 0x6f } },
+{ "svpctx", {"", 0x70 } },
+{ "jmp", {"ab", 0x71 } },
+{ "cvlf", {"rl", 0x76 } },
+{ "cvld", {"rl", 0x77 } },
+{ "decb", {"mb", 0x79 } },
+{ "decw", {"mw", 0x7b } },
+{ "divl3", {"rlrlwl", 0x7c } },
+{ "decl", {"ml", 0x7d } },
+{ "cvtlw", {"rlww", 0x7f } },
+{ "bgeq", {"bb", 0x81 } },
+{ "movs2", {"abab", 0x82 } },
+{ "cvfl", {"wl", 0x86 } },
+{ "cvdl", {"wl", 0x87 } },
+{ "orb2", {"rbmb", 0x88 } },
+{ "cvtbl", {"rbwl", 0x89 } },
+{ "orw2", {"rwmw", 0x8a } },
+{ "bispsw", {"rw", 0x8b } },
+{ "orl2", {"rlml", 0x8c } },
+{ "adwc", {"rlml", 0x8d } },
+{ "adda", {"rlml", 0x8e } },
+{ "blss", {"bb", 0x91 } },
+{ "cmps2", {"abab", 0x92 } },
+{ "ldfd", {"rl", 0x97 } },
+{ "orb3", {"rbrbwb", 0x98 } },
+{ "cvtbw", {"rbww", 0x99 } },
+{ "orw3", {"rwrwww", 0x9a } },
+{ "bicpsw", {"rw", 0x9b } },
+{ "orl3", {"rlrlwl", 0x9c } },
+{ "sbwc", {"rlml", 0x9d } },
+{ "suba", {"rlml", 0x9e } },
+{ "bgtru", {"bb", 0xa1 } },
+{ "cvdf", {"", 0xa6 } },
+{ "andb2", {"rbmb", 0xa8 } },
+{ "movzbl", {"rbwl", 0xa9 } },
+{ "andw2", {"rwmw", 0xaa } },
+{ "loadr", {"rwal", 0xab } },
+{ "andl2", {"rlml", 0xac } },
+{ "mtpr", {"rlrl", 0xad } },
+{ "ffs", {"rlwl", 0xae } },
+{ "blequ", {"bb", 0xb1 } },
+{ "negf", {"", 0xb6 } },
+{ "negd", {"", 0xb7 } },
+{ "andb3", {"rbrbwb", 0xb8 } },
+{ "movzbw", {"rbww", 0xb9 } },
+{ "andw3", {"rwrwww", 0xba } },
+{ "storer", {"rwal", 0xbb } },
+{ "andl3", {"rlrlwl", 0xbc } },
+{ "mfpr", {"rlwl", 0xbd } },
+{ "ffc", {"rlwl", 0xbe } },
+{ "calls", {"rbab", 0xbf } },
+{ "prober", {"rbabrl", 0xc0 } },
+{ "bvc", {"bb", 0xc1 } },
+{ "movs3", {"ababrw", 0xc2 } },
+{ "movzwl", {"rwwl", 0xc3 } },
+{ "addf", {"rl", 0xc6 } },
+{ "addd", {"rq", 0xc7 } },
+{ "xorb2", {"rbmb", 0xc8 } },
+{ "movob", {"rbwb", 0xc9 } },
+{ "xorw2", {"rwmw", 0xca } },
+{ "movow", {"rwww", 0xcb } },
+{ "xorl2", {"rlml", 0xcc } },
+{ "movpsl", {"wl", 0xcd } },
+{ "kcall", {"rw", 0xcf } },
+{ "probew", {"rbabrl", 0xd0 } },
+{ "bvs", {"bb", 0xd1 } },
+{ "cmps3", {"ababrw", 0xd2 } },
+{ "subf", {"rq", 0xd6 } },
+{ "subd", {"rq", 0xd7 } },
+{ "xorb3", {"rbrbwb", 0xd8 } },
+{ "pushb", {"rb", 0xd9 } },
+{ "xorw3", {"rwrwww", 0xda } },
+{ "pushw", {"rw", 0xdb } },
+{ "xorl3", {"rlrlwl", 0xdc } },
+{ "pushl", {"rl", 0xdd } },
+{ "insque", {"abab", 0xe0 } },
+{ "bcs", {"bb", 0xe1 } },
+{ "bgequ", {"bb", 0xe1 } },
+{ "mulf", {"rq", 0xe6 } },
+{ "muld", {"rq", 0xe7 } },
+{ "mnegb", {"rbwb", 0xe8 } },
+{ "movab", {"abwl", 0xe9 } },
+{ "mnegw", {"rwww", 0xea } },
+{ "movaw", {"awwl", 0xeb } },
+{ "mnegl", {"rlwl", 0xec } },
+{ "moval", {"alwl", 0xed } },
+{ "remque", {"ab", 0xf0 } },
+{ "bcc", {"bb", 0xf1 } },
+{ "blssu", {"bb", 0xf1 } },
+{ "divf", {"rq", 0xf6 } },
+{ "divd", {"rq", 0xf7 } },
+{ "movblk", {"alalrw", 0xf8 } },
+{ "pushab", {"ab", 0xf9 } },
+{ "pushaw", {"aw", 0xfb } },
+{ "casel", {"rlrlrl", 0xfc } },
+{ "pushal", {"al", 0xfd } },
+{ "callf", {"rbab", 0xfe } },
+{ "" , "" } /* empty is end sentinel */
+
+};
--- /dev/null
+/*
+ * Ported by the State University of New York at Buffalo by the Distributed
+ * Computer Systems Lab, Department of Computer Science, 1991.
+ */
+
+#include <stdio.h>
+
+#include "defs.h"
+#include "param.h"
+#include "symtab.h"
+#include "opcode.h"
+
+/* Tahoe instructions are never longer than this. */
+#define MAXLEN 62
+
+/* Number of elements in the opcode table. */
+#define NOPCODES (sizeof votstrs / sizeof votstrs[0])
+
+extern char *reg_names[];
+
+static unsigned char *print_insn_arg ();
+
+/* Print the Tahoe instruction at address MEMADDR in debugged memory,
+ on STREAM. Returns length of the instruction, in bytes. */
+
+int
+print_insn (memaddr, stream)
+ CORE_ADDR memaddr;
+ FILE *stream;
+{
+ unsigned char buffer[MAXLEN];
+ register int i;
+ register unsigned char *p;
+ register char *d;
+
+ read_memory (memaddr, buffer, MAXLEN);
+
+ for (i = 0; i < NOPCODES; i++)
+ if (votstrs[i].detail.code == buffer[0]
+ || votstrs[i].detail.code == *(unsigned short *)buffer)
+ break;
+
+ /* Handle undefined instructions. */
+ if (i == NOPCODES)
+ {
+ fprintf (stream, "0%o", buffer[0]);
+ return 1;
+ }
+
+ fprintf (stream, "%s", votstrs[i].name);
+
+ /* Point at first byte of argument data,
+ and at descriptor for first argument. */
+ p = buffer + 1 + (votstrs[i].detail.code >= 0x100);
+ d = votstrs[i].detail.args;
+
+ if (*d)
+ fputc ('\t', stream);
+
+ while (*d)
+ {
+ p = print_insn_arg (d, p, memaddr + (p - buffer), stream);
+ d += 2;
+ if (*d)
+ fprintf (stream, ",");
+ }
+ return p - buffer;
+}
+/*******************************************************************/
+static unsigned char *
+print_insn_arg (d, p, addr, stream)
+ char *d;
+ register char *p;
+ CORE_ADDR addr;
+ FILE *stream;
+{
+ int temp1 = 0;
+ register int regnum = *p & 0xf;
+ float floatlitbuf;
+
+ if (*d == 'b')
+ {
+ if (d[1] == 'b')
+ fprintf (stream, "0x%x", addr + *p++ + 1);
+ else
+ {
+
+ temp1 = *p;
+ temp1 <<= 8;
+ temp1 |= *(p + 1);
+ fprintf (stream, "0x%x", addr + temp1 + 2);
+ p += 2;
+ }
+ }
+ else
+ switch ((*p++ >> 4) & 0xf)
+ {
+ case 0:
+ case 1:
+ case 2:
+ case 3: /* Liter>al(short immediate byte) mode */
+ if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h')
+ {
+ *(int *)&floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4);
+ fprintf (stream, "$%f", floatlitbuf);
+ }
+ else
+ fprintf (stream, "$%d", p[-1] & 0x3f);
+ break;
+
+ case 4: /* Indexed */
+ p = (char *) print_insn_arg (d, p, addr + 1, stream);
+ fprintf (stream, "[%s]", reg_names[regnum]);
+ break;
+
+ case 5: /* Register */
+ fprintf (stream, reg_names[regnum]);
+ break;
+
+ case 7: /* Autodecrement */
+ fputc ('-', stream);
+ case 6: /* Register deferred */
+ fprintf (stream, "(%s)", reg_names[regnum]);
+ break;
+
+ case 9: /* Absolute Address & Autoincrement deferred */
+ fputc ('*', stream);
+ if (regnum == PC_REGNUM)
+ {
+ temp1 = *p;
+ temp1 <<= 8;
+ temp1 |= *(p +1);
+
+ fputc ('$', stream);
+ print_address (temp1, stream);
+ p += 4;
+ break;
+ }
+ case 8: /*Immediate & Autoincrement SP */
+ if (regnum == 8) /*88 is Immediate Byte Mode*/
+ fprintf (stream, "$%d", *p++);
+
+ else if (regnum == 9) /*89 is Immediate Word Mode*/
+ {
+ temp1 = *p;
+ temp1 <<= 8;
+ temp1 |= *(p +1);
+ fprintf (stream, "$%d", temp1);
+ p += 2;
+ }
+
+ else if (regnum == PC_REGNUM) /*8F is Immediate Long Mode*/
+ {
+ temp1 = *p;
+ temp1 <<=8;
+ temp1 |= *(p +1);
+ temp1 <<=8;
+ temp1 |= *(p +2);
+ temp1 <<= 8;
+ temp1 |= *(p +3);
+ fprintf (stream, "$%d", temp1);
+ p += 4;
+ }
+
+ else /*8E is Autoincrement SP Mode*/
+ fprintf (stream, "(%s)+", reg_names[regnum]);
+ break;
+
+ case 11: /* Register + Byte Displacement Deferred Mode*/
+ fputc ('*', stream);
+ case 10: /* Register + Byte Displacement Mode*/
+ if (regnum == PC_REGNUM)
+ print_address (addr + *p + 2, stream);
+ else
+ fprintf (stream, "%d(%s)", *p, reg_names[regnum]);
+ p += 1;
+ break;
+
+ case 13: /* Register + Word Displacement Deferred Mode*/
+ fputc ('*', stream);
+ case 12: /* Register + Word Displacement Mode*/
+ temp1 = *p;
+ temp1 <<= 8;
+ temp1 |= *(p +1);
+ if (regnum == PC_REGNUM)
+ print_address (addr + temp1 + 3, stream);
+ else
+ fprintf (stream, "%d(%s)", temp1, reg_names[regnum]);
+ p += 2;
+ break;
+
+ case 15: /* Register + Long Displacement Deferred Mode*/
+ fputc ('*', stream);
+ case 14: /* Register + Long Displacement Mode*/
+ temp1 = *p;
+ temp1 <<= 8;
+ temp1 |= *(p +1);
+ temp1 <<= 8;
+ temp1 |= *(p +2);
+ temp1 <<= 8;
+ temp1 |= *(p +3);
+ if (regnum == PC_REGNUM)
+ print_address (addr + temp1 + 5, stream);
+ else
+ fprintf (stream, "%d(%s)", temp1, reg_names[regnum]);
+ p += 4;
+ }
+
+ return (unsigned char *) p;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
--- /dev/null
+/* Definitions to make GDB target for a tahoe running 4.3-Reno.
+ Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+GDB 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 1, or (at your option)
+any later version.
+
+GDB 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 GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ * Ported by the State University of New York at Buffalo by the Distributed
+ * Computer Systems Lab, Department of Computer Science, 1991.
+ */
+
+#define TARGET_BYTE_ORDER BIG_ENDIAN
+#define BITS_BIG_ENDIAN 0
+
+/* Define this if the C compiler puts an underscore at the front
+ of external names before giving them to the linker. */
+
+#define NAMES_HAVE_UNDERSCORE
+
+/* Debugger information will be in DBX format. */
+
+#define READ_DBX_FORMAT
+
+/* Offset from address of function to start of its code.
+ Zero on most machines. */
+
+#define FUNCTION_START_OFFSET 2
+
+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
+
+#define SKIP_PROLOGUE(pc) \
+{ register int op = (unsigned char) read_memory_integer (pc, 1); \
+ if (op == 0x11) pc += 2; /* skip brb */ \
+ if (op == 0x13) pc += 3; /* skip brw */ \
+ if (op == 0x2c && \
+ ((unsigned char) read_memory_integer (pc+2, 1)) == 0x5e) \
+ pc += 3; /* skip subl2 */ \
+ if (op == 0xe9 && \
+ ((unsigned char) read_memory_integer (pc+1, 1)) == 0xae && \
+ ((unsigned char) read_memory_integer(pc+3, 1)) == 0x5e) \
+ pc += 4; /* skip movab */ \
+ if (op == 0xe9 && \
+ ((unsigned char) read_memory_integer (pc+1, 1)) == 0xce && \
+ ((unsigned char) read_memory_integer(pc+4, 1)) == 0x5e) \
+ pc += 5; /* skip movab */ \
+ if (op == 0xe9 && \
+ ((unsigned char) read_memory_integer (pc+1, 1)) == 0xee && \
+ ((unsigned char) read_memory_integer(pc+6, 1)) == 0x5e) \
+ pc += 7; /* skip movab */ \
+}
+
+/* Immediately after a function call, return the saved pc.
+ Can't always go through the frames for this because on some machines
+ the new frame is not set up until the new function executes
+ some instructions. */
+
+#define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame)
+
+/* Wrong for cross-debugging. I don't know the real values. */
+#define TARGET_UPAGES UPAGES
+#define TARGET_NBPG NBPG
+
+/* 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 (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG))
+
+/* Address of end of stack space. */
+
+#define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG))
+
+/* On BSD, sigtramp is in the u area. Can't check the exact
+ addresses because for cross-debugging we don't have target include
+ files around. This should be close enough. */
+#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000))
+
+/* Stack grows downward. */
+
+#define INNER_THAN <
+
+/* Sequence of bytes for breakpoint instruction. */
+
+#define BREAKPOINT {0x30}
+
+/* Amount PC must be decremented by after a breakpoint.
+ This is often the number of bytes in BREAKPOINT
+ but not always. */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* Nonzero if instruction at PC is a return instruction. */
+
+#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x40)
+
+/* Return 1 if P points to an invalid floating point value.
+ LEN is the length in bytes -- not relevant on the Tahoe. */
+
+#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000)
+
+/* Say how long (ordinary) registers are. */
+
+#define REGISTER_TYPE long
+
+/* Number of machine registers */
+
+#define NUM_REGS 19
+
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
+
+#define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "fp", "sp", "pc", "ps", "al", "ah"}
+
+#define FP_REGNUM 13 /* Contains address of executing stack frame */
+#define SP_REGNUM 14 /* Contains address of top of stack */
+#define PC_REGNUM 15 /* Contains program counter */
+#define PS_REGNUM 16 /* Contains processor status */
+
+#define AL_REGNUM 17 /* Contains accumulator */
+#define AH_REGNUM 18
+
+/* Total amount of space needed to store our copies of the machine's
+ register state, the array `registers'. */
+
+#define REGISTER_BYTES (19*4)
+
+/* Index within `registers' of the first byte of the space for
+ register N. */
+
+#define REGISTER_BYTE(N) ((N) * 4)
+
+/* Number of bytes of storage in the actual machine representation
+ for register N. On the tahoe, all regs are 4 bytes. */
+
+#define REGISTER_RAW_SIZE(N) 4
+
+/* Number of bytes of storage in the program's representation
+ for register N. On the tahoe, all regs are 4 bytes. */
+
+#define REGISTER_VIRTUAL_SIZE(N) 4
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+
+#define MAX_REGISTER_RAW_SIZE 4
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 4
+
+/* Nonzero if register N requires conversion
+ from raw format to virtual format. */
+
+#define REGISTER_CONVERTIBLE(N) 0
+
+/* Convert data from raw format for register REGNUM
+ to virtual format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
+ bcopy ((FROM), (TO), 4);
+
+/* Convert data from virtual format for register REGNUM
+ to raw format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
+ bcopy ((FROM), (TO), 4);
+
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+
+#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
+
+/* Store the address of the place in which to copy the structure the
+ subroutine will return. This is called from call_function. */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) \
+ { write_register (1, (ADDR)); }
+
+/* Extract from an array REGBUF containing the (raw) register state
+ a function return value of type TYPE, and copy that, in virtual format,
+ into VALBUF. */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+ bcopy (REGBUF, VALBUF, TYPE_LENGTH (TYPE))
+
+/* Write into appropriate registers a function return value
+ of type TYPE, given in virtual format. */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+ write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* Extract from an array REGBUF containing the (raw) register state
+ the address in which a function should return its structure value,
+ as a CORE_ADDR (or an expression that can be used as one). */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))
+
+/* Describe the pointer in each stack frame to the previous stack frame
+ (its caller).
+
+ FRAME_CHAIN takes a frame's nominal address
+ and produces the frame's chain-pointer.
+
+ FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
+ and produces the nominal address of the caller frame.
+
+ However, if FRAME_CHAIN_VALID returns zero,
+ it means the given frame is the outermost one and has no caller.
+ In that case, FRAME_CHAIN_COMBINE is not used. */
+
+/* In the case of the Tahoe, the frame's nominal address is the FP value,
+ and it points to the old FP */
+
+#define FRAME_CHAIN(thisframe) \
+ (outside_startup_file ((thisframe)->pc) ? \
+ read_memory_integer ((thisframe)->frame, 4) :\
+ 0)
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe))))
+
+#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
+
+/* Define other aspects of the stack frame. */
+
+/* Saved PC */
+
+#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4))
+
+/* In most of GDB, getting the args address is too important to
+ just say "I don't know". */
+
+#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame+4)
+
+/* Address to use as an anchor for finding local variables */
+
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+ Can return -1, meaning no way to tell. */
+
+#define FRAME_NUM_ARGS(numargs, fi) \
+{ numargs = ((0xffff & read_memory_integer(((fi)->frame-4),4)) - 4) >> 2; }
+
+/* Return number of bytes at start of arglist that are not really args. */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Put here the code to store, into a struct frame_saved_regs,
+ the addresses of the saved registers of frame described by FRAME_INFO.
+ This includes special registers such as pc and fp saved in special
+ ways in the stack frame. sp is even more special:
+ the address we return for it IS the sp for the next frame. */
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+{ register int regnum; \
+ register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\
+ register CORE_ADDR next_addr; \
+ bzero (&frame_saved_regs, sizeof frame_saved_regs); \
+ next_addr = (frame_info)->frame - 8; \
+ for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1) \
+ (frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\
+ (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4; \
+ (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8; \
+ (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
+}
+
+/* Things needed for making the inferior call functions. */
+
+/* Push an empty stack frame, to record the current PC, etc. */
+
+#define PUSH_DUMMY_FRAME \
+{ register CORE_ADDR sp = read_register (SP_REGNUM); \
+ register int regnum; \
+printf("PUSH_DUMMY_FRAME\n"); \
+ sp = push_word (sp, read_register (FP_REGNUM)); \
+ write_register (FP_REGNUM, sp); \
+ sp = push_word (sp, 0x1fff0004); /*SAVE MASK*/ \
+ sp = push_word (sp, read_register (PC_REGNUM)); \
+ for (regnum = 12; regnum >= 0; regnum--) \
+ sp = push_word (sp, read_register (regnum)); \
+ write_register (SP_REGNUM, sp); \
+}
+
+/* Discard from the stack the innermost frame, restoring all registers. */
+
+#define POP_FRAME \
+{ register CORE_ADDR fp = read_register (FP_REGNUM); \
+ register int regnum; \
+ register int regmask = read_memory_integer (fp-4, 4); \
+printf("POP_FRAME\n"); \
+ regmask >>= 16; \
+ write_register (SP_REGNUM, fp+4); \
+ write_register (PC_REGNUM, read_memory_integer(fp-8, 4)); \
+ write_register (FP_REGNUM, read_memory_integer(fp, 4)); \
+ fp -= 8; \
+ for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1) \
+ if (regmask & 0x1000) \
+ write_register (regnum, read_memory_integer (fp-=4, 4)); \
+ flush_cached_frames (); \
+ set_current_frame (create_new_frame (read_register (FP_REGNUM), \
+ read_pc ())); }
+
+/* This sequence of words is the instructions
+ calls #69, @#32323232
+ bpt
+ Note this is 8 bytes. */
+
+#define CALL_DUMMY {0xbf699f32, 0x32323230}
+
+/* Start execution at beginning of dummy */
+
+#define CALL_DUMMY_START_OFFSET 0
+
+/* Insert the specified number of args and function address
+ into a call sequence of the above form stored at DUMMYNAME. */
+
+#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, type) \
+{ int temp = (int) fun; \
+ *((char *) dummyname + 1) = nargs; \
+ bcopy(&temp,(char *)dummyname+3,4); }
+
--- /dev/null
+/* Definitions to make GDB hosted on a tahoe running 4.3-Reno
+ Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+GDB 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 1, or (at your option)
+any later version.
+
+GDB 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 GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ * Ported by the State University of New York at Buffalo by the Distributed
+ * Computer Systems Lab, Department of Computer Science, 1991.
+ */
+
+/*
+ * These first two are kludges to get this thing to compile under Reno (or
+ * at least the Reno running on okeeffe). It seems there are a few problems
+ * with the include files.
+ */
+
+/* to compile infrun.c -
+ don't allow sys/dir.h to be included, it gets redefined and
+ by ufs/dir.h and screws up my life! */
+#define _DIRENT_
+
+/* to compile remote.c -
+ when sys/ioctl.h get's called we need USE_OLD_TTY defined
+ so that ioctl_compat.h will be included. latter, sgtty.h
+ tries to define USE_OLD_TTY and call sys/ioctl.h but it's
+ too late */
+#define USE_OLD_TTY
+
+/* Get rid of any system-imposed stack limit if possible. */
+
+#define SET_STACK_LIMIT_HUGE
+
+#define REGISTER_U_ADDR(addr, blockend, regno) \
+{ addr = blockend - 100 + regno * 4; \
+ if (regno == PC_REGNUM) addr = blockend - 8; \
+ if (regno == PS_REGNUM) addr = blockend - 4; \
+ if (regno == FP_REGNUM) addr = blockend - 40; \
+ if (regno == SP_REGNUM) addr = blockend - 36; \
+ if (regno == AL_REGNUM) addr = blockend - 20; \
+ if (regno == AH_REGNUM) addr = blockend - 24;}
+
+/* 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 0x41(sp)"); \
+ asm ("pushl r0" ); \
+ asm ("pushl r1" ); \
+ asm ("pushl r2" ); \
+ asm ("pushl r3" ); \
+ asm ("pushl r4" ); \
+ asm ("pushl r5" ); \
+ asm ("pushl r6" ); \
+ asm ("pushl r7" ); \
+ asm ("pushl r8" ); \
+ asm ("pushl r9" ); \
+ asm ("pushl r10" ); \
+ asm ("pushl r11" ); \
+ asm ("pushl r12" ); \
+ asm ("pushl fp" ); \
+ asm ("pushl sp" ); \
+ asm ("pushl pc" ); \
+ asm ("pushl ps" ); \
+ asm ("pushl aclo" ); \
+ asm ("pushl achi" ); \
+}
+
+/* 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 ("movl (sp)+, achi"); \
+ asm ("movl (sp)+, aclo"); \
+ asm ("movl (sp)+, ps"); \
+ asm ("movl (sp)+, pc"); \
+ asm ("movl (sp)+, sp"); \
+ asm ("movl (sp)+, fp"); \
+ asm ("movl (sp)+, r12"); \
+ asm ("movl (sp)+, r11"); \
+ asm ("movl (sp)+, r10"); \
+ asm ("movl (sp)+, r9"); \
+ asm ("movl (sp)+, r8"); \
+ asm ("movl (sp)+, r7"); \
+ asm ("movl (sp)+, r6"); \
+ asm ("movl (sp)+, r5"); \
+ asm ("movl (sp)+, r4"); \
+ asm ("movl (sp)+, r3"); \
+ asm ("movl (sp)+, r2"); \
+ asm ("movl (sp)+, r1"); \
+ asm ("movl (sp)+, r0"); \
+ asm ("subl2 $8,(sp)"); \
+ asm ("movl (sp),sp"); \
+ asm ("rei"); }
projects / binutils-gdb.git / commitdiff