tm-pyr.h

arm-linux-gcc编译器

/* OBSOLETE /* Definitions to make GDB run on a Pyramid under OSx 4.0 (4.2bsd). */
/* OBSOLETE    Copyright 1988, 1989, 1991, 1993 Free Software Foundation, Inc. */
/* OBSOLETE  */
/* OBSOLETE This file is part of GDB. */
/* OBSOLETE  */
/* OBSOLETE This program is free software; you can redistribute it and/or modify */
/* OBSOLETE it under the terms of the GNU General Public License as published by */
/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
/* OBSOLETE (at your option) any later version. */
/* OBSOLETE  */
/* OBSOLETE This program is distributed in the hope that it will be useful, */
/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
/* OBSOLETE GNU General Public License for more details. */
/* OBSOLETE  */
/* OBSOLETE You should have received a copy of the GNU General Public License */
/* OBSOLETE along with this program; if not, write to the Free Software */
/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define TARGET_BYTE_ORDER BIG_ENDIAN */
/* OBSOLETE  */
/* OBSOLETE /* Traditional Unix virtual address spaces have thre regions: text, */
/* OBSOLETE    data and stack.  The text, initialised data, and uninitialised data */
/* OBSOLETE    are represented in separate segments of the a.out file. */
/* OBSOLETE    When a process dumps core, the data and stack regions are written */
/* OBSOLETE    to a core file.  This gives a debugger enough information to */
/* OBSOLETE    reconstruct (and debug) the virtual address space at the time of */
/* OBSOLETE    the coredump. */
/* OBSOLETE    Pyramids have an distinct fourth region of the virtual address */
/* OBSOLETE    space, in which the contents of the windowed registers are stacked */
/* OBSOLETE    in fixed-size frames.  Pyramid refer to this region as the control */
/* OBSOLETE    stack.  Each call (or trap) automatically allocates a new register */
/* OBSOLETE    frame; each return deallocates the current frame and restores the */
/* OBSOLETE    windowed registers to their values before the call. */
/* OBSOLETE  */
/* OBSOLETE    When dumping core, the control stack is written to a core files as */
/* OBSOLETE    a third segment. The core-handling functions need to know to deal */
/* OBSOLETE    with it. *x/  */
/* OBSOLETE  */
/* OBSOLETE /* Tell corefile.c there is an extra segment.  *x/ */
/* OBSOLETE #define REG_STACK_SEGMENT */
/* OBSOLETE  */
/* OBSOLETE /* Floating point is IEEE compatible on most Pyramid hardware */
/* OBSOLETE    (Older processors do not have IEEE NaNs).  *x/ */
/* OBSOLETE #define IEEE_FLOAT */
/* OBSOLETE  */
/* OBSOLETE /* Offset from address of function to start of its code. */
/* OBSOLETE    Zero on most machines.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define FUNCTION_START_OFFSET 0 */
/* OBSOLETE  */
/* OBSOLETE /* Advance PC across any function entry prologue instructions */
/* OBSOLETE    to reach some "real" code.  *x/ */
/* OBSOLETE  */
/* OBSOLETE /* FIXME -- do we want to skip insns to allocate the local frame? */
/* OBSOLETE    If so, what do they look like? */
/* OBSOLETE    This is becoming harder, since [e-mail] wants to change */
/* OBSOLETE    gcc to not output a prologue when no frame is needed.   *x/ */
/* OBSOLETE #define SKIP_PROLOGUE(pc)  (pc) */
/* OBSOLETE  */
/* OBSOLETE  */
/* OBSOLETE /* Immediately after a function call, return the saved pc. */
/* OBSOLETE    Can't always go through the frames for this because on some machines */
/* OBSOLETE    the new frame is not set up until the new function executes */
/* OBSOLETE    some instructions.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame) */
/* OBSOLETE  */
/* OBSOLETE /* Address of end of stack space.  *x/ */
/* OBSOLETE /* This seems to be right for the 90x comp.vuw.ac.nz. */
/* OBSOLETE    The correct value at any site may be a function of the configured */
/* OBSOLETE    maximum control stack depth.  If so, I don't know where the */
/* OBSOLETE    control-stack depth is configured, so I can't #include it here. *x/  */
/* OBSOLETE #define STACK_END_ADDR (0xc00cc000) */
/* OBSOLETE  */
/* OBSOLETE /* Register window stack (Control stack) stack definitions */
/* OBSOLETE     - Address of beginning of control stack. */
/* OBSOLETE     - size of control stack frame */
/* OBSOLETE    (Note that since crts0 is usually the first function called, */
/* OBSOLETE     main()'s control stack is one frame (0x80 bytes) beyond this value.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define CONTROL_STACK_ADDR (0xc00cd000) */
/* OBSOLETE  */
/* OBSOLETE /* Bytes in a register window -- 16 parameter regs, 16 local regs */
/* OBSOLETE    for each call, is 32 regs * 4 bytes *x/ */
/* OBSOLETE  */
/* OBSOLETE #define CONTROL_STACK_FRAME_SIZE (32*4) */
/* OBSOLETE  */
/* OBSOLETE /* FIXME.  On a pyr, Data Stack grows downward; control stack goes upwards.  */
/* OBSOLETE    Which direction should we use for INNER_THAN, PC_INNER_THAN ?? *x/ */
/* OBSOLETE  */
/* OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) */
/* OBSOLETE  */
/* OBSOLETE /* Stack must be aligned on 32-bit boundaries when synthesizing */
/* OBSOLETE    function calls. *x/ */
/* OBSOLETE  */
/* OBSOLETE #define STACK_ALIGN(ADDR) (((ADDR) + 3) & -4) */
/* OBSOLETE  */
/* OBSOLETE /* Sequence of bytes for breakpoint instruction.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define BREAKPOINT {0xf0, 00, 00, 00} */
/* OBSOLETE  */
/* OBSOLETE /* Amount PC must be decremented by after a breakpoint. */
/* OBSOLETE    This is often the number of bytes in BREAKPOINT */
/* OBSOLETE    but not always.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define DECR_PC_AFTER_BREAK 0 */
/* OBSOLETE  */
/* OBSOLETE /* Say how long (ordinary) registers are.  This is a piece of bogosity */
/* OBSOLETE    used in push_word and a few other places; REGISTER_RAW_SIZE is the */
/* OBSOLETE    real way to know how big a register is.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_SIZE 4 */
/* OBSOLETE  */
/* OBSOLETE /* Number of machine registers *x/ */
/* OBSOLETE /* pyramids have 64, plus one for the PSW; plus perhaps one more for the */
/* OBSOLETE    kernel stack pointer (ksp) and control-stack pointer (CSP) *x/ */
/* OBSOLETE  */
/* OBSOLETE #define NUM_REGS 67 */
/* OBSOLETE  */
/* OBSOLETE /* Initializer for an array of names of registers. */
/* OBSOLETE    There should be NUM_REGS strings in this initializer.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_NAMES \ */
/* OBSOLETE {"gr0", "gr1", "gr2", "gr3", "gr4", "gr5", "gr6", "gr7", \ */
/* OBSOLETE  "gr8", "gr9", "gr10", "gr11", "logpsw", "cfp", "sp", "pc", \ */
/* OBSOLETE  "pr0", "pr1", "pr2", "pr3", "pr4", "pr5", "pr6", "pr7", \ */
/* OBSOLETE  "pr8", "pr9", "pr10", "pr11", "pr12", "pr13", "pr14", "pr15", \ */
/* OBSOLETE  "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", \ */
/* OBSOLETE  "lr8", "lr9", "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", \ */
/* OBSOLETE  "tr0", "tr1", "tr2", "tr3", "tr4", "tr5", "tr6", "tr7", \ */
/* OBSOLETE  "tr8", "tr9", "tr10", "tr11", "tr12", "tr13", "tr14", "tr15", \ */
/* OBSOLETE   "psw", "ksp", "csp"} */
/* OBSOLETE  */
/* OBSOLETE /* Register numbers of various important registers. */
/* OBSOLETE    Note that some of these values are "real" register numbers, */
/* OBSOLETE    and correspond to the general registers of the machine, */
/* OBSOLETE    and some are "phony" register numbers which are too large */
/* OBSOLETE    to be actual register numbers as far as the user is concerned */
/* OBSOLETE    but do serve to get the desired values when passed to read_register.  *x/ */
/* OBSOLETE  */
/* OBSOLETE /* pseudo-registers: *x/ */
/* OBSOLETE #define PS_REGNUM 64                /* Contains processor status *x/ */
/* OBSOLETE #define PSW_REGNUM 64               /* Contains current psw, whatever it is.*x/ */
/* OBSOLETE #define CSP_REGNUM 65               /* address of this control stack frame*x/ */
/* OBSOLETE #define KSP_REGNUM 66               /* Contains process's Kernel Stack Pointer *x/ */
/* OBSOLETE  */
/* OBSOLETE #define CFP_REGNUM 13               /* Current data-stack frame ptr *x/ */
/* OBSOLETE #define TR0_REGNUM 48               /* After function call, contains */
/* OBSOLETE                                function result *x/ */
/* OBSOLETE  */
/* OBSOLETE /* Registers interesting to the machine-independent part of gdb*x/ */
/* OBSOLETE  */
/* OBSOLETE #define FP_REGNUM CSP_REGNUM        /* Contains address of executing (control) */
/* OBSOLETE                                stack frame *x/ */
/* OBSOLETE #define SP_REGNUM 14                /* Contains address of top of stack -??*x/ */
/* OBSOLETE #define PC_REGNUM 15                /* Contains program counter *x/ */
/* OBSOLETE  */
/* OBSOLETE /* Define DO_REGISTERS_INFO() to do machine-specific formatting */
/* OBSOLETE    of register dumps. *x/ */
/* OBSOLETE  */
/* OBSOLETE #define DO_REGISTERS_INFO(_regnum, fp) pyr_do_registers_info(_regnum, fp) */
/* OBSOLETE  */
/* OBSOLETE /* need this so we can find the global registers: they never get saved. *x/ */
/* OBSOLETE extern unsigned int global_reg_offset; */
/* OBSOLETE extern unsigned int last_frame_offset; */
/* OBSOLETE  */
/* OBSOLETE /* Total amount of space needed to store our copies of the machine's */
/* OBSOLETE    register state, the array `registers'.  *x/ */
/* OBSOLETE #define REGISTER_BYTES (NUM_REGS*4) */
/* OBSOLETE  */
/* OBSOLETE /* the Pyramid has register windows.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define HAVE_REGISTER_WINDOWS */
/* OBSOLETE  */
/* OBSOLETE /* Is this register part of the register window system?  A yes answer */
/* OBSOLETE    implies that 1) The name of this register will not be the same in */
/* OBSOLETE    other frames, and 2) This register is automatically "saved" (out */
/* OBSOLETE    registers shifting into ins counts) upon subroutine calls and thus */
/* OBSOLETE    there is no need to search more than one stack frame for it. *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_IN_WINDOW_P(regnum)        \ */
/* OBSOLETE   ((regnum) >= 16 && (regnum) < 64) */
/* OBSOLETE  */
/* OBSOLETE /* Index within `registers' of the first byte of the space for */
/* OBSOLETE    register N.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_BYTE(N) ((N) * 4) */
/* OBSOLETE  */
/* OBSOLETE /* Number of bytes of storage in the actual machine representation */
/* OBSOLETE    for register N.  On the Pyramid, all regs are 4 bytes.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_RAW_SIZE(N) 4 */
/* OBSOLETE  */
/* OBSOLETE /* Number of bytes of storage in the program's representation */
/* OBSOLETE    for register N.  On the Pyramid, all regs are 4 bytes.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) 4 */
/* OBSOLETE  */
/* OBSOLETE /* Largest value REGISTER_RAW_SIZE can have.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define MAX_REGISTER_RAW_SIZE 4 */
/* OBSOLETE  */
/* OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 4 */
/* OBSOLETE  */
/* OBSOLETE /* Return the GDB type object for the "standard" data type */
/* OBSOLETE    of data in register N.  *x/ */
/* OBSOLETE  */
/* OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) builtin_type_int */
/* OBSOLETE  */
/* OBSOLETE /* FIXME: It seems impossible for both EXTRACT_RETURN_VALUE and */
/* OBSOLETE    STORE_RETURN_VALUE to be correct. *x/ */
/* OBSOLETE  */
/* OBSOLETE /* Store the address of the place in which to copy the structure the */
/* OBSOLETE    subroutine will return.  This is called from call_function. *x/ */
/* OBSOLETE  */
/* OBSOLETE /****FIXME****x/ */
/* OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \ */
/* OBSOLETE   { write_register (TR0_REGNUM, (ADDR)); } */
/* OBSOLETE  */
/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
/* OBSOLETE    a function return value of type TYPE, and copy that, in virtual format, */
/* OBSOLETE    into VALBUF.  *x/ */
/* OBSOLETE  */
/* OBSOLETE /* Note that on a register-windowing machine (eg, Pyr, SPARC), this is */
/* OBSOLETE    where the value is found after the function call -- ie, it should */
/* OBSOLETE    correspond to GNU CC's FUNCTION_VALUE rather than FUNCTION_OUTGOING_VALUE.*x/ */
/* OBSOLETE  */
/* OBSOLETE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ */
/* OBSOLETE   memcpy (VALBUF, ((int *)(REGBUF))+TR0_REGNUM, TYPE_LENGTH (TYPE)) */
/* OBSOLETE  */
/* OBSOLETE /* Write into appropriate registers a function return value */
/* OBSOLETE    of type TYPE, given in virtual format.  *x/ */
/* OBSOLETE /* on pyrs, values are returned in *x/ */
/* OBSOLETE  */
/* OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ */
/* OBSOLETE   write_register_bytes (REGISTER_BYTE(TR0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)) */
/* OBSOLETE  */
/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
/* OBSOLETE    the address in which a function should return its structure value, */