-/* Parameters for execution on a Sun 4, for GDB, the GNU debugger.
- Copyright (C) 1986, 1987 Free Software Foundation, Inc.
- Contributed by Michael Tiemann (tiemann@mcc.com)
+/* Copyright (C) 1990 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.
+This file is part of GDB.
-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.
+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.
-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!
-*/
+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.
-#ifndef sun4
-#define sun4
-#endif
-
-/* Get rid of any system-imposed stack limit if possible. */
-
-#define SET_STACK_LIMIT_HUGE
-
-/* 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 0
-
-/* 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. */
-
-/* On the Sun 4 under SunOS, the compile will leave a fake insn which
- encodes the structure size being returned. If we detect such
- a fake insn, step past it. */
-
-#define PC_ADJUST(pc) ((read_memory_integer (pc + 8, 4) & 0xfffffe00) == 0 ? pc+12 : pc+8)
-
-#define SAVED_PC_AFTER_CALL(frame) PC_ADJUST (read_register (RP_REGNUM))
-
-/* Address of end of stack space. */
-
-#define STACK_END_ADDR 0xf000000
-
-/* Stack grows downward. */
-
-#define INNER_THAN <
-
-/* Stack has strict alignment. */
-
-#define STACK_ALIGN(ADDR) (((ADDR)+7)&-8)
-
-/* Sequence of bytes for breakpoint instruction. */
-
-#define BREAKPOINT {0x91, 0xd0, 0x20, 0x01}
-
-/* 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. */
-/* For SPARC, this is either a "jmpl %o7+8,%g0" or "jmpl %i7+8,%g0".
-
- Note: this does not work for functions returning structures under SunOS. */
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer (pc, 4)|0x00040000) == 0x81c7e008)
-
-/* Return 1 if P points to an invalid floating point value. */
-
-#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
-
-/* Say how long (ordinary) registers are. */
-
-#define REGISTER_TYPE long
-
-/* Number of machine registers */
-
-#define NUM_REGS 72
-
-/* Initializer for an array of names of registers.
- There should be NUM_REGS strings in this initializer. */
-
-#define REGISTER_NAMES \
-{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
- "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
- "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
- "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
- \
- "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", \
- \
- "y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr" };
-
-/* 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 FP_REGNUM 30 /* Contains address of executing stack frame */
-#define RP_REGNUM 15 /* Contains return address value, *before* \
- any windows get switched. */
-#define SP_REGNUM 14 /* Contains address of top of stack, \
- which is also the bottom of the frame. */
-#define Y_REGNUM 64 /* Temp register for multiplication, etc. */
-#define PS_REGNUM 65 /* Contains processor status */
-#define PC_REGNUM 68 /* Contains program counter */
-#define NPC_REGNUM 69 /* Contains next PC */
-#define FP0_REGNUM 32 /* Floating point register 0 */
-#define FPS_REGNUM 70 /* Floating point status register */
-#define CPS_REGNUM 71 /* Coprocessor status register */
-
-/* Total amount of space needed to store our copies of the machine's
- register state, the array `registers'. */
-#define REGISTER_BYTES (32*4+32*4+8*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 SPARC, 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 SPARC, 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. */
+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. */
-#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
-{ bcopy ((FROM), (TO), 4); }
+/* The standard thing is to include param.h. However, files that are
+ specific to a particular target can include that tm-xxx.h file and
+ param-no-tm.h. Any future inclusions of param.h will be protected
+ against by the #if !defined stuff below. */
-/* Return the GDB type object for the "standard" data type
- of data in register N. */
+/* This file requires defs.h. */
-#define REGISTER_VIRTUAL_TYPE(N) \
- ((N) < 32 ? builtin_type_int : (N) < 64 ? builtin_type_float : builtin_type_int)
-
-/* 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 ((int *)REGBUF+8, VALBUF, TYPE_LENGTH (TYPE))
-
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format. */
-/* On sparc, values are returned in register %o0. */
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
- write_register_bytes (REGISTER_BYTE (8), 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) (read_memory_integer (((int *)(REGBUF))[SP_REGNUM]+(16*4), 4))
-
-/* Enable use of alternate code to read and write registers. */
-
-#define NEW_SUN_PTRACE
-
-/* Enable use of alternate code for Sun's format of core dump file. */
-
-#define NEW_SUN_CORE
-
-/* Do implement the attach and detach commands. */
-
-#define ATTACH_DETACH
-
-/* It is safe to look for symsegs on a Sun, because Sun's ld
- does not screw up with random garbage at end of file. */
-
-#define READ_GDB_SYMSEGS
-
-/* The SPARC processor has register windows. */
-
-#define HAVE_REGISTER_WINDOWS
-\f
-/* Describe the pointer in each stack frame to the previous stack frame
- (its caller). */
-#include <machine/reg.h>
-
-#define GET_RWINDOW_REG(FRAME, REG) \
- (read_memory_integer (&((struct rwindow *)FRAME)->REG, 4))
-
-/* 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 Sun 4, the frame-chain's nominal address
- is held in the frame pointer register.
-
- On the Sun4, the frame (in %fp) is %sp for the previous frame.
- From the previous frame's %sp, we can find the previous frame's
- %fp: it is in the save area just above the previous frame's %sp. */
-
-#define FRAME_CHAIN(thisframe) \
- GET_RWINDOW_REG (thisframe, rw_in[6])
-
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- (chain != 0 && (FRAME_SAVED_PC (thisframe, 0) >= first_object_file_end))
-
-#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
-
-/* Define other aspects of the stack frame. */
-
-#define FRAME_SAVED_PC(frame, next_frame) frame_saved_pc (frame, next_frame)
-
-/* If the argument is on the stack, it will be here. */
-#define FRAME_ARGS_ADDRESS(fi) (fi.frame)
-
-#define FRAME_STRUCT_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
- now that the C compiler delays popping them. */
-#define FRAME_NUM_ARGS(val,fi) (val = -1)
-
-/* Return number of bytes at start of arglist that are not really args. */
-
-#define FRAME_ARGS_SKIP 68
-
-/* 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.
-
- On the Sun 4, the only time all registers are saved is when
- a dummy frame is involved. Otherwise, the only saved registers
- are the LOCAL and IN registers which are saved as a result
- of the "save/restore" opcodes. This condition is determined
- by address rather than by value. */
-
-#define FRAME_FIND_SAVED_REGS(fi, frame_saved_regs) \
-{ register int regnum; \
- register CORE_ADDR pc; \
- FRAME frame = (fi).frame; \
- FRAME next_frame = (fi).next_frame; \
- bzero (&frame_saved_regs, sizeof frame_saved_regs); \
- if ((fi).pc >= frame - CALL_DUMMY_LENGTH - 0x140 \
- && (fi).pc <= frame) \
- { \
- for (regnum = 0; regnum < 32; regnum++) \
- (frame_saved_regs).regs[regnum+FP0_REGNUM] = frame + regnum * 4 - 0x80;\
- for (regnum = 1; regnum < 8; regnum++) \
- (frame_saved_regs).regs[regnum] = frame + regnum * 4 - 0xa0; \
- for (regnum = 0; regnum < 8; regnum++) \
- (frame_saved_regs).regs[regnum+24] = frame + regnum * 4 - 0xc0; \
- for (regnum = 0; regnum < 8; regnum++) \
- (frame_saved_regs).regs[regnum+64] = frame + regnum * 4 - 0xe0; \
- frame = (fi).next_frame ? \
- (fi).next_frame : read_register (SP_REGNUM); \
- } \
- else \
- { \
- for (regnum = 0; regnum < 16; regnum++) \
- (frame_saved_regs).regs[regnum+16] = frame + regnum * 4; \
- } \
- if (next_frame == 0) next_frame = read_register (SP_REGNUM); \
- for (regnum = 0; regnum < 8; regnum++) \
- (frame_saved_regs).regs[regnum+8] = next_frame + regnum * 4; \
- (frame_saved_regs).regs[FP_REGNUM] = frame + 14*4; \
- (frame_saved_regs).regs[SP_REGNUM] = frame; \
- (frame_saved_regs).regs[PC_REGNUM] = frame + 15*4; \
-}
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-/* NOTE: to be perfectly correct, we will probably have to restore the
- IN registers (which were the OUT registers of the calling frame). */
-
-#define PUSH_DUMMY_FRAME \
-{ extern char registers[]; \
- register int regnum; \
- CORE_ADDR fp = read_register (FP_REGNUM); \
- CORE_ADDR pc = read_register (PC_REGNUM); \
- void do_save_insn (); \
- supply_register (RP_REGNUM, &pc); \
- do_save_insn (0x140); \
- fp = read_register (FP_REGNUM); \
- write_memory (fp - 0x80, ®isters[REGISTER_BYTE (FP0_REGNUM)], 32 * 4); \
- write_memory (fp - 0xa0, ®isters[REGISTER_BYTE (0)], 8 * 4); \
- write_memory (fp - 0xc0, ®isters[REGISTER_BYTE (24)], 8 * 4); \
- write_memory (fp - 0xe0, ®isters[REGISTER_BYTE (64)], 8 * 4); \
-}
-
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
-
-#define POP_FRAME \
-{ register CORE_ADDR fp = read_register (FP_REGNUM); \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info fi; \
- char raw_buffer_fp[REGISTER_BYTES]; \
- char raw_buffer_globals[REGISTER_BYTES]; \
- char raw_buffer_outs[REGISTER_BYTES]; \
- char raw_buffer_xx[REGISTER_BYTES]; \
- void do_restore_insn (); \
- fi = get_frame_info (fp); \
- get_frame_saved_regs (&fi, &fsr); \
- if (fsr.regs[FP0_REGNUM]) \
- read_memory (fsr.regs[FP0_REGNUM], raw_buffer_fp, 32 * 4); \
- if (fsr.regs[1]) \
- read_memory (fsr.regs[1], raw_buffer_globals, 7 * 4); \
- if (fsr.regs[24]) \
- read_memory (fsr.regs[24], raw_buffer_outs, 8 * 4); \
- if (fsr.regs[64]) \
- read_memory (fsr.regs[64], raw_buffer_xx, 8 * 4); \
- do_restore_insn (fsr.regs); \
- if (fsr.regs[FP0_REGNUM]) \
- write_register_bytes (REGISTER_BYTE (FP0_REGNUM), raw_buffer_fp, 32 * 4); \
- if (fsr.regs[1]) \
- write_register_bytes (REGISTER_BYTE (1), raw_buffer_globals, 7 * 4);\
- if (fsr.regs[24]) \
- write_register_bytes (REGISTER_BYTE (8), raw_buffer_outs, 8 * 4); \
- if (fsr.regs[64]) \
- write_register_bytes (REGISTER_BYTE (64), raw_buffer_xx, 8 * 4); \
- set_current_frame (read_register (FP_REGNUM)); \
-}
-
-/* This sequence of words is the instructions
-
- save %sp,-0x140,%sp
- std %f30,[%fp-0x08]
- std %f28,[%fp-0x10]
- std %f26,[%fp-0x18]
- std %f24,[%fp-0x20]
- std %f22,[%fp-0x28]
- std %f20,[%fp-0x30]
- std %f18,[%fp-0x38]
- std %f16,[%fp-0x40]
- std %f14,[%fp-0x48]
- std %f12,[%fp-0x50]
- std %f10,[%fp-0x58]
- std %f8,[%fp-0x60]
- std %f6,[%fp-0x68]
- std %f4,[%fp-0x70]
- std %f2,[%fp-0x78]
- std %f0,[%fp-0x80]
- std %g6,[%fp-0x88]
- std %g4,[%fp-0x90]
- std %g2,[%fp-0x98]
- std %g0,[%fp-0xa0]
- std %i6,[%fp-0xa8]
- std %i4,[%fp-0xb0]
- std %i2,[%fp-0xb8]
- std %i0,[%fp-0xc0]
- nop ! stcsr [%fp-0xc4]
- nop ! stfsr [%fp-0xc8]
- nop ! wr %npc,[%fp-0xcc]
- nop ! wr %pc,[%fp-0xd0]
- rd %tbr,%o0
- st %o0,[%fp-0xd4]
- rd %wim,%o1
- st %o0,[%fp-0xd8]
- rd %psr,%o0
- st %o0,[%fp-0xdc]
- rd %y,%o0
- st %o0,[%fp-0xe0]
-
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following call instruction. *../
-
- ld [%sp+0x58],%o5
- ld [%sp+0x44],%o4
- ld [%sp+0x50],%o3
- ld [%sp+0x4c],%o2
- ld [%sp+0x48],%o1
- call 0x34343434
- ld [%sp+0x44],%o0
- nop
- ta 1
- nop
-
- note that this is 192 bytes, which is a multiple of 8 (not only 4) bytes.
- note that the `call' insn is a relative, not an absolute call.
- note that the `nop' at the end is needed to keep the trap from
- clobbering things (if NPC pointed to garbage instead).
-
-We actually start executing at the `sethi', since the pushing of the
-registers (as arguments) is done by PUSH_DUMMY_FRAME. If this were
-real code, the arguments for the function called by the CALL would be
-pushed between the list of ST insns and the CALL, and we could allow
-it to execute through. But the arguments have to be pushed by GDB
-after the PUSH_DUMMY_FRAME is done, and we cannot allow these ST
-insns to be performed again, lest the registers saved be taken for
-arguments. */
-
-#define CALL_DUMMY { 0x9de3bee0, 0xfd3fbff8, 0xf93fbff0, 0xf53fbfe8, \
- 0xf13fbfe0, 0xed3fbfd8, 0xe93fbfd0, 0xe53fbfc8, \
- 0xe13fbfc0, 0xdd3fbfb8, 0xd93fbfb0, 0xd53fbfa8, \
- 0xd13fbfa0, 0xcd3fbf98, 0xc93fbf90, 0xc53fbf88, \
- 0xc13fbf80, 0xcc3fbf78, 0xc83fbf70, 0xc43fbf68, \
- 0xc03fbf60, 0xfc3fbf58, 0xf83fbf50, 0xf43fbf48, \
- 0xf03fbf40, 0x01000000, 0x01000000, 0x01000000, \
- 0x01000000, 0x91580000, 0xd027bf50, 0x93500000, \
- 0xd027bf4c, 0x91480000, 0xd027bf48, 0x91400000, \
- 0xd027bf44, 0xda03a058, 0xd803a044, 0xd603a050, \
- 0xd403a04c, 0xd203a048, 0x40000000, 0xd003a044, \
- 0x01000000, 0x91d02001, 0x01000000, 0x01000000}
-
-#define CALL_DUMMY_LENGTH 192
-
-#define CALL_DUMMY_START_OFFSET 148
-
-#define CALL_DUMMY_STACK_ADJUST 68
-
-/* 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 *)((char *) dummyname+168) = (0x40000000|((fun-(pc+168))>>2)); \
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT || TYPE_CODE (type) == TYPE_CODE_UNION) \
- *(int *)((char *) dummyname+176) = (TYPE_LENGTH (type) & 0x1fff); \
-}
-\f
-/* Sparc has no reliable single step ptrace call */
+#if !defined (PARAM_H)
+#include "tm.h"
+#endif
-#define NO_SINGLE_STEP 1
+#include "param-no-tm.h"
-/* KDB stuff flushed for now. */
+#define PARAM_H 1
projects / deliverable / binutils-gdb.git / blobdiff