Update cygnus copies of currently undistributed i860 files maintained by
Peggy Fieland at stratus.com.
This commit is contained in:
Fred Fish
parent
14f1fc24fa
commit
672786833c
|
|
@ -0,0 +1,83 @@
|
|||
/* I860 -specific breakpoint stuff.
|
||||
Copyright (C) 1986, 1987 Free Software Foundation, Inc.
|
||||
|
||||
GDB is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY. No author or distributor accepts responsibility to anyone
|
||||
for the consequences of using it or for whether it serves any
|
||||
particular purpose or works at all, unless he says so in writing.
|
||||
Refer to the GDB General Public License for full details.
|
||||
|
||||
Everyone is granted permission to copy, modify and redistribute GDB,
|
||||
but only under the conditions described in the GDB General Public
|
||||
License. A copy of this license is supposed to have been given to you
|
||||
along with GDB so you can know your rights and responsibilities. It
|
||||
should be in a file named COPYING. Among other things, the copyright
|
||||
notice and this notice must be preserved on all copies.
|
||||
|
||||
In other words, go ahead and share GDB, but don't try to stop
|
||||
anyone else from sharing it farther. Help stamp out software hoarding!
|
||||
*/
|
||||
|
||||
/* #define BREAKPOINT_DEBUG 1 */
|
||||
|
||||
#include "tm.h"
|
||||
|
||||
#ifdef i860
|
||||
void i860_insert_breakpoints();
|
||||
void i860_dbrk_breakpoints();
|
||||
|
||||
#define BREAKPOINT_HERE(b,pc) ((b->act_addr[0] == pc) || (b->act_addr[1] == pc) ||(b->act_addr[2] == pc) || (b->act_addr[2] == pc))
|
||||
|
||||
/* This is the sequence of bytes we insert for a breakpoint. */
|
||||
|
||||
static char break_insn[] = BREAKPOINT;
|
||||
static char float_insn[] = BREAKFLOAT;
|
||||
|
||||
#endif
|
||||
|
||||
#define FOPMSK 0x4C000000
|
||||
#define DOPMSK 0x4C000200
|
||||
#define FOP860 0x48000000
|
||||
#define DOP860 0x48000200
|
||||
|
||||
#define ALN32(a) ((( (int)(a) & 0x0007) == 0x04) )
|
||||
#define ALN64(a) ((( (int)(a) & 0x0007) == 0x00) )
|
||||
/*
|
||||
#define ISFOP(a) ((((adj_read_memory_integer(a)) & FOPMSK)==FOP860 ))
|
||||
#define ISCOR(a) ((!(((adj_read_memory_integer(a)) & FOPMSK)==FOP860 )))
|
||||
#define ISDOP(a) ((((adj_read_memory_integer(a)) & DOPMSK)==DOP860 ))
|
||||
*/
|
||||
|
||||
#define ISFOP(a) ((((adj_read_memory_integer(a)) & FOPMSK)==FOP860 ))
|
||||
#define ISCOR(a) ((!(((adj_read_memory_integer(a)) & FOPMSK)==FOP860 )))
|
||||
#define ISDOP(a) ((((adj_read_memory_integer(a)) & DOPMSK)==DOP860 ))
|
||||
|
||||
#define ISDIM(a) (\
|
||||
( ISDOP(a) && ALN64(a) && ISCOR(a+4)) || \
|
||||
((ISFOP(a) && ALN64(a) && ISCOR(a+4)) && (ISDOP(a-8) || ISDOP(a-0x10))) || \
|
||||
( ISCOR(a) && ALN32(a) && ISDOP(a-4)) || \
|
||||
((ISCOR(a) && ALN32(a) && ISFOP(a+4)) && (ISDOP(a-4) || ISDOP(a-0x0C))) \
|
||||
)
|
||||
/*
|
||||
#define ISDIM(a) (\
|
||||
( ISDOP(a) && ALN64(a) && ISCOR(a+4)) || \
|
||||
((ISFOP(a) && ALN64(a) && ISCOR(a+4)) && (ISDOP(a-8) || ISDOP(a-16))) || \
|
||||
( ISCOR(a) && ALN32(a) && ISDOP(a-4)) || \
|
||||
((ISCOR(a) && ALN32(a) && ISFOP(a+4)) && (ISDOP(a-4) || ISDOP(a-12))) \
|
||||
)
|
||||
*/
|
||||
#define FOPADR(a) ( ((int)(a) & 0xFFFFFFF8) )
|
||||
#define CORADR(a) ((((int)(a) & 0xFFFFFFFC ) | 0x04) )
|
||||
|
||||
#define DMNEXT(a) ( ISDIM(a)?(ISDIM(a+1)?(a+2):(a+1)):(a+1) )
|
||||
#define STDIM (((*(int *)&(registers[REGISTER_BYTE(PS_REGNUM)])) & 0x6000) == 0x2000 )
|
||||
#define INDIM (((*(int *)&(registers[REGISTER_BYTE(PS_REGNUM)])) & 0x6000) == 0x4000 )
|
||||
#define ENDIM (((*(int *)&(registers[REGISTER_BYTE(PS_REGNUM)])) & 0x6000) == 0x6000 )
|
||||
|
||||
#define DIM 8
|
||||
#define RIM 0x8004
|
||||
#define SIM 4
|
||||
#define ADDR_INC(a) (((int)(a) & 0x0FFF))
|
||||
|
||||
#define SINGLE_STEP_MODE 1
|
||||
#define BREAK_MODE 0
|
||||
|
|
@ -1,7 +1,5 @@
|
|||
/* Intel i860 opcode structures for GDB, the GNU debugger.
|
||||
Copyright status of this module is unclear!!!
|
||||
Copyright (C) 1992 Free Software Foundation, Inc.
|
||||
SVR4 changes Contributed by Peggy Fieland (pfieland@stratus.com)
|
||||
/* Intel I860 opcde list for GDB, the GNU debugger.
|
||||
Copyright (C) 1986, 1987 Free Software Foundation, Inc.
|
||||
|
||||
GDB is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY. No author or distributor accepts responsibility to anyone
|
||||
|
|
@ -134,5 +132,3 @@ typedef enum
|
|||
{
|
||||
Error, not_branch, uncond, uncond_d, cond, cond_d
|
||||
} branch_type;
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
/* Print i860 instructions for GDB, the GNU debugger.
|
||||
Copyright status of this module is unclear!!!
|
||||
Copyright (C) 1992 Free Software Foundation, Inc.
|
||||
SVR4 changes Contributed by Peggy Fieland (pfieland@stratus.com)
|
||||
Copyright (C) 1986, 1987 Free Software Foundation, Inc.
|
||||
Contributed by Michael Tiemann (tiemann@mcc.com)
|
||||
|
||||
GDB is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY. No author or distributor accepts responsibility to anyone
|
||||
|
|
@ -20,6 +19,8 @@ In other words, go ahead and share GDB, but don't try to stop
|
|||
anyone else from sharing it farther. Help stamp out software hoarding!
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "defs.h"
|
||||
#include "tm-i860.h"
|
||||
#include "i860-opcode.h"
|
||||
|
|
@ -655,5 +656,3 @@ ctrl_a(name, insn, memaddr, stream)
|
|||
|
||||
print_address ((CORE_ADDR) (memaddr + 4 + offset), stream);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
789
gdb/i860-tdep.c
789
gdb/i860-tdep.c
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,473 @@
|
|||
/* Parameters for execution on the Intel I860 for GDB, the GNU debugger.
|
||||
Copyright (C) 1986, 1987 Free Software Foundation, Inc.
|
||||
|
||||
GDB is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY. No author or distributor accepts responsibility to anyone
|
||||
for the consequences of using it or for whether it serves any
|
||||
particular purpose or works at all, unless he says so in writing.
|
||||
Refer to the GDB General Public License for full details.
|
||||
|
||||
Everyone is granted permission to copy, modify and redistribute GDB,
|
||||
but only under the conditions described in the GDB General Public
|
||||
License. A copy of this license is supposed to have been given to you
|
||||
along with GDB so you can know your rights and responsibilities. It
|
||||
should be in a file named COPYING. Among other things, the copyright
|
||||
notice and this notice must be preserved on all copies.
|
||||
|
||||
In other words, go ahead and share GDB, but don't try to stop
|
||||
anyone else from sharing it farther. Help stamp out software hoarding!
|
||||
*/
|
||||
|
||||
#ifndef i860
|
||||
#define i860 1
|
||||
#endif
|
||||
|
||||
#define HAVE_TERMIO
|
||||
#define vfork fork
|
||||
|
||||
/* Debugger information will be in COFF format. */
|
||||
|
||||
/* #define COFF_FORMAT */
|
||||
#define COFF_NO_LONG_FILE_NAMES
|
||||
|
||||
/* Offset from address of function to start of its code.
|
||||
Zero on most machines. */
|
||||
|
||||
#define FUNCTION_START_OFFSET 0
|
||||
|
||||
/* The call instruction puts its return address in register r1 and does
|
||||
not change the stack pointer */
|
||||
|
||||
#define RETURN_ADDR_IN_REGISTER
|
||||
|
||||
/* Advance PC across any function entry prologue instructions
|
||||
to reach some "real" code. */
|
||||
|
||||
#define SKIP_PROLOGUE(pc) \
|
||||
{ pc = skip_prologue (pc); }
|
||||
|
||||
/* Immediately after a function call, return the saved pc.
|
||||
Can't 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) \
|
||||
(read_register(RP_REGNUM))
|
||||
|
||||
/* Address of end of stack space. */
|
||||
|
||||
#define STACK_END_ADDR 0xfc000000
|
||||
|
||||
/* Stack grows downward. */
|
||||
|
||||
#define INNER_THAN <
|
||||
|
||||
/* Stack has strict alignment. */
|
||||
|
||||
#define ALIGN_STACK(ADDR) (((ADDR)+15)&-16)
|
||||
|
||||
|
||||
/* Sequence of bytes for breakpoint instruction. */
|
||||
#if defined(i860) && defined(BIG_ENDIAN)
|
||||
#define BREAKPOINT {0x44, 0x00, 0x00, 0x00}
|
||||
#define BREAKFLOAT {0x22, 0x06, 0x00, 0x48}
|
||||
#else
|
||||
#define BREAKPOINT {0x00, 0x00, 0x00, 0x44}
|
||||
#define BREAKFLOAT {0x48, 0x00, 0x06, 0x22}
|
||||
#endif
|
||||
/* 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. */
|
||||
/* should be "bri r1" */
|
||||
#define ABOUT_TO_RETURN(pc) \
|
||||
(adj_read_memory_integer (pc) == 0x40000800)
|
||||
|
||||
|
||||
/* Return 1 if P points to an invalid floating point value. */
|
||||
|
||||
#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
|
||||
|
||||
/* Largest integer type */
|
||||
#define LONGEST long
|
||||
|
||||
/* Name of the builtin type for the LONGEST type above. */
|
||||
#define BUILTIN_TYPE_LONGEST builtin_type_long
|
||||
|
||||
/* Say how long (ordinary) registers are. */
|
||||
|
||||
#define REGISTER_TYPE long
|
||||
|
||||
/* Number of machine registers */
|
||||
|
||||
#define NUM_REGS i860REGCOUNT
|
||||
|
||||
/* Initializer for an array of names of registers.
|
||||
There should be NUM_REGS strings in this initializer. */
|
||||
#define REGISTER_NAMES \
|
||||
{ \
|
||||
"psr", "fir", "trap", "dbrk", \
|
||||
"r0", "r1", "sp", "fp", "r4", "r5", "r6", "r7", \
|
||||
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
|
||||
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
|
||||
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
|
||||
\
|
||||
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
|
||||
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
|
||||
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
|
||||
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
|
||||
\
|
||||
"fsr", \
|
||||
"fsr1", "fsr2", "fsr3", \
|
||||
"mul1", "", "mul2", "", "mul3", "", \
|
||||
"add1", "", "add2", "", "add3", "", \
|
||||
"KI", "", "KR", "", "T", "", \
|
||||
"MERGE", "", \
|
||||
"pfld1", "", "", "", "pfld2", "", "", "", "pfld3", "", "", "", \
|
||||
"graph1", "", \
|
||||
"fpe_fp1","", "fpe_fp2", "", "fpe_fp3", "", \
|
||||
"fpe_fp4", "", \
|
||||
"ieee_stat", "fpe_trapped_op", \
|
||||
"fpe_fp5","", "fpe_fp6", "", \
|
||||
"fpe_rfsr", "","","", \
|
||||
"epsr", \
|
||||
"ccr", "bear", "err" \
|
||||
}
|
||||
/* Register numbers of various important registers.
|
||||
Note that some of these values are "real" register numbers,
|
||||
and correspond to the general registers of the machine,
|
||||
and some are "phony" register numbers which are too large
|
||||
to be actual register numbers as far as the user is concerned
|
||||
but do serve to get the desired values when passed to read_register. */
|
||||
|
||||
#define RP_REGNUM R1 /* Contains return address value */
|
||||
#define SP_REGNUM SP /* Contains address of top of stack, */
|
||||
#define FP_REGNUM FP /* Contains address of executing stack frame */
|
||||
/* which is also the bottom of the frame. */
|
||||
#define RTRN RP_REGNUM
|
||||
#define R_FP FP /* used by dwarfread.c */
|
||||
#define Y_REGNUM R31 /* Temp register for address calc., etc. */
|
||||
#define PC_REGNUM PC /* Contains program counter */
|
||||
#define PS_REGNUM PSR /* Contains processor status */
|
||||
#define FP0_REGNUM FREGS /* Floating point register 0 */
|
||||
#define FPS_REGNUM FSR /* Floating point status register */
|
||||
#define DB_REGNUM DB /* Debug register */
|
||||
|
||||
/* Total amount of space needed to store our copies of the machine's
|
||||
register state, the array `registers'. */
|
||||
#define REGISTER_BYTES (NUM_REGS * 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 i860, 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 i860, all regs are 4 bytes. */
|
||||
|
||||
#define REGISTER_VIRTUAL_SIZE(N) (4)
|
||||
|
||||
/* Largest value REGISTER_RAW_SIZE can have. */
|
||||
|
||||
#define MAX_REGISTER_RAW_SIZE 8
|
||||
|
||||
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
|
||||
|
||||
#define MAX_REGISTER_VIRTUAL_SIZE 8
|
||||
|
||||
/* 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) \
|
||||
((N) < F0 ? builtin_type_int : (N) <= F31 ? builtin_type_float : 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 (R16, (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) \
|
||||
i860_extract_return_value(TYPE, REGBUF, VALBUF)
|
||||
|
||||
/* Write into appropriate registers a function return value
|
||||
of type TYPE, given in virtual format. */
|
||||
/* On i860, values are returned in register r16. */
|
||||
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
||||
i860_store_return_value(TYPE, VALBUF)
|
||||
|
||||
/* 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) + REGISTER_BYTE(R16)))
|
||||
|
||||
|
||||
/* Describe the pointer in each stack frame to the previous stack frame
|
||||
(its caller). */
|
||||
#include <sys/types.h>
|
||||
#include <sys/regset.h>
|
||||
#include "i860_reg.h"
|
||||
|
||||
/* 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 i860, the frame-chain's nominal address
|
||||
is held in the frame pointer register.
|
||||
|
||||
On the i860 the frame (in %fp) points to %fp for the previous frame.
|
||||
*/
|
||||
|
||||
/* our FRAME_CHAIN requires a pointer to all the frame info (e.g. pc)
|
||||
|
||||
*/
|
||||
|
||||
#define FRAME_CHAIN(thisframe) frame_chain(thisframe)
|
||||
|
||||
#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
|
||||
|
||||
/* Define other aspects of the stack frame. */
|
||||
|
||||
#define FRAME_SAVED_PC(frame_struct) frame_saved_pc(frame_struct)
|
||||
|
||||
#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
|
||||
|
||||
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
|
||||
|
||||
/* Set VAL to the number of args passed to frame described by FI.
|
||||
Can set VAL to -1, meaning no way to tell. */
|
||||
|
||||
/* We can't tell how many args there are */
|
||||
|
||||
#define FRAME_NUM_ARGS(val,fi) (val = -1)
|
||||
|
||||
#define FRAME_STRUCT_ARGS_ADDRESS(fi) ((fi)->frame)
|
||||
|
||||
/* extra stuff in frame structure to support
|
||||
* backtraceing thru non fp frame based frames
|
||||
* (trace stuff thats not -g compiled)
|
||||
*/
|
||||
|
||||
#define EXTRA_FRAME_INFO int is_minus_g; CORE_ADDR sp; CORE_ADDR rp;
|
||||
|
||||
#define INIT_EXTRA_FRAME_INFO(fromleaf,fci) (fci)->is_minus_g = 0; (fci)->sp = 0; (fci)->rp = 0;
|
||||
|
||||
/* Return number of bytes at start of arglist that are not really args. */
|
||||
|
||||
#define FRAME_ARGS_SKIP 8
|
||||
|
||||
/* 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. */
|
||||
|
||||
/* Grind through the various st.l rx,Y(fp) and fst.z fx,Y(fp) */
|
||||
|
||||
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
|
||||
frame_find_saved_regs(frame_info, &(frame_saved_regs))
|
||||
|
||||
/* Things needed for making the inferior call functions. */
|
||||
|
||||
/* Push an empty stack frame, to record the current PC, etc. */
|
||||
/* We have this frame with fp pointing to a block where all GDB-visible
|
||||
registers are stored in the order GDB knows them, and sp at the next
|
||||
alignment point below fp. Note: fp + NUM_REGS*4 was the old sp
|
||||
*/
|
||||
|
||||
#define PUSH_DUMMY_FRAME i860_push_frame()
|
||||
|
||||
/* Discard from the stack the innermost frame,
|
||||
restoring all saved registers. */
|
||||
|
||||
#define POP_FRAME i860_pop_frame()
|
||||
|
||||
/* This sequence of words is the instructions:
|
||||
*../
|
||||
--
|
||||
nop
|
||||
calli r31
|
||||
nop
|
||||
trap r0,r0,r0
|
||||
--
|
||||
Note this is 16 bytes.
|
||||
Saving of the registers is done by PUSH_DUMMY_FRAME. The address of the
|
||||
function to call will be placed in register r31 prior to starting.
|
||||
The arguments have to be put into the parameter registers by GDB after
|
||||
the PUSH_DUMMY_FRAME is done. NOTE: GDB expects to push arguments, but
|
||||
i860 takes them in registers */
|
||||
#ifdef BIG_ENDIAN
|
||||
/* account for reversal of instructions in memory */
|
||||
|
||||
#define CALL_DUMMY { \
|
||||
0x4c00f802, 0xa0000000, 0x44000000, 0xa0000000 }
|
||||
#else
|
||||
#define CALL_DUMMY { \
|
||||
0xa0000000, 0x4c00F802, 0xa0000000, 0x44000000 }
|
||||
#endif
|
||||
|
||||
/* This setup is somewhat unusual. PUSH_DUMMY_FRAME and
|
||||
FRAME_FIND_SAVED_REGS conspire to handle dummy frames differently.
|
||||
Therefore, CALL_DUMMY can be minimal. We put the address of the called
|
||||
function in r31 and let'er rip */
|
||||
|
||||
#define CALL_DUMMY_LENGTH 16
|
||||
|
||||
/* Actually start at the calli */
|
||||
|
||||
#define CALL_DUMMY_START_OFFSET 4
|
||||
|
||||
/* Normally, GDB will patch the dummy code here to put in the function
|
||||
address, etc., but we only need to put the call adddress in r31 */
|
||||
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
|
||||
write_register(R31, fun)
|
||||
|
||||
|
||||
/* i860 has no reliable single step ptrace call */
|
||||
|
||||
#define NO_SINGLE_STEP 1
|
||||
|
||||
#define KERNEL_U_ADDR 0xfc7fe530
|
||||
#define REGISTER_U_ADDR(addr,ar0,regno) \
|
||||
addr = (REGISTER_BYTE(regno) + ar0 );
|
||||
|
||||
/* How many bytes are pushed on the stack for the argument list
|
||||
*/
|
||||
#define STACK_ARG_BYTES(RESULT,ARGS,NARGS,STRUCT_RETURN) {(RESULT) = 0;}
|
||||
|
||||
/* Pass arguments to a function
|
||||
*/
|
||||
|
||||
#define PUSH_ARGUMENTS(NARGS,ARGS,STACKP,STRUCT_RETURN,STRUCT_ADDR) \
|
||||
{ \
|
||||
STACKP = (STACKP) & (-16); \
|
||||
STACKP = i860_arg_coerce(NARGS, ARGS, STRUCT_RETURN,STACKP); \
|
||||
STACKP =pass_function_arguments(ARGS,NARGS,STRUCT_RETURN, STRUCT_ADDR, STACKP); }
|
||||
|
||||
#define CALL_DUMMY_LOCATION AFTER_TEXT_END
|
||||
|
||||
#define NEED_TEXT_START_END
|
||||
|
||||
#define NONSTANDARD_MEMORY_LAYOUT
|
||||
|
||||
/* We support pseudo-frame structure so actual frame pointer value must be
|
||||
* read from the register.
|
||||
*/
|
||||
#define FP_FROM_REGISTER
|
||||
|
||||
/* Support a quit from info register command because we have so many regs
|
||||
*/
|
||||
#define INFO_REGISTER_QUIT
|
||||
|
||||
/* Identify text or absolute symbols to put in misc function table. In the
|
||||
* i860 case, only text symbols not starting with _L00
|
||||
*/
|
||||
#define MISC_FUNCTION(cs) ((cs)->c_secnum == 1 && (cs)->c_value && \
|
||||
strncmp((cs)->c_name, "_L00", 4) != 0)
|
||||
|
||||
/* Define our a.out magic number and undefine the 386 one if it's defined
|
||||
*/
|
||||
#ifdef I860MAGIC
|
||||
#define AOUT_MAGIC I860MAGIC
|
||||
#else
|
||||
#define AOUT_MAGIC 0515
|
||||
#endif
|
||||
|
||||
#ifdef I386MAGIC
|
||||
#undef I386MAGIC
|
||||
#endif
|
||||
|
||||
/* The aouthdr may be larger than defined in a.out.h
|
||||
*/
|
||||
#define AOUTHDR_VARIABLE
|
||||
|
||||
/* We have a bug where lineno information is not in symbol table correctly
|
||||
*/
|
||||
#define LINENO_BUG
|
||||
|
||||
/* Similarly, the Endndx of a structure definition is bogus in ld860
|
||||
*/
|
||||
/* #define STRUCT_SYMBOL_BUG */
|
||||
|
||||
/* Also, we see T_ARG types when we shouldn't
|
||||
*/
|
||||
#define T_ARG_BUG
|
||||
|
||||
/* Macro to sign extend to 32 bits */
|
||||
#define SIGN_EXT(n,x) (((int) (x) << (32-n)) >> (32-n))
|
||||
|
||||
#define SIGN_EXT16(x) (((int) (x) << (16)) >> (16))
|
||||
|
||||
#define FRAMELESS_FUNCTION_INVOCATION(FI,FRAMELESS) frameless_look_for_prologue(FI)
|
||||
#if defined(i860) && defined(BIG_ENDIAN)
|
||||
#define ADJ_PC(pc) ((unsigned)pc ^ 4)
|
||||
#define ADJ_FREG(freg) (F0 + (((freg) - F0) ^ 1))
|
||||
#define ADJ_FREG_BYTE(freg) (REGISTER_BYTE(F0) + (((freg) - REGISTER_BYTE(F0)) ^ REGISTER_BYTE(1)))
|
||||
#else
|
||||
#define ADJ_PC(pc) (pc)
|
||||
#define ADJ_FREG(freg) (freg)
|
||||
#define ADJ_FREG_BYTE(freg) (freg)
|
||||
#endif
|
||||
/* define DO_REGISTERS_INFO to do i860-specific formatting */
|
||||
#define DO_REGISTERS_INFO(regnum,fpregs) i860_do_registers_info(regnum,fpregs)
|
||||
/* the two low order bits of the return pointer are ignored when returning; some systems store information
|
||||
in them. To avoid confusing the stack trace, provide this macro to "clean" the two low order bits */
|
||||
#define CLEAN_PC(pc) ((unsigned) pc & 0xfffffffc)
|
||||
#define adj_target_read_memory(memaddr,myaddr,len) target_read_memory(ADJ_PC(memaddr),myaddr,len)
|
||||
#define adj_target_write_memory(memaddr,myaddr,len) target_write_memory(ADJ_PC(memaddr),myaddr,len)
|
||||
#define adj_read_memory_integer(memaddr) read_memory_integer(ADJ_PC(memaddr),4)
|
||||
#define adj_read_memory(memaddr,myaddr,len) read_memory(ADJ_PC(memaddr),myaddr,len)
|
||||
#define adj_write_memory(memaddr,myaddr,len) write_memory(ADJ_PC(memaddr),myaddr,len)
|
||||
#define INIT_FRAME_PC(fromleaf, prev) \
|
||||
{ struct frame_info *nextframe = prev->next; \
|
||||
if (nextframe->rp) \
|
||||
{ prev->pc = CLEAN_PC( nextframe ->rp); \
|
||||
prev->rp = 0; } \
|
||||
else prev->pc = CLEAN_PC((fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
|
||||
prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ())); }
|
||||
|
||||
#define INTERNAL_REGISTER_VAL(regno) regno+R0
|
||||
/* used to indicate that the misc function vector has size information about
|
||||
misc functions -- currently true for elf format only -- mlf */
|
||||
#define MISC_FUNCTIONS_HAS_SIZE
|
||||
#define GET_BASEREG_VALUE(frame,basereg) get_saved_basereg(frame, basereg);
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
/* Macro definitions for running gdb on host machines with i860 cpu's.
|
||||
Copyright (C) 1991, Free Software Foundation, Inc.
|
||||
Written by Peggy Fieland @ stratus.com
|
||||
|
||||
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. */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue