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markom |
/* OBSOLETE /* Definitions to make GDB run on a Pyramid under OSx 4.0 (4.2bsd). */
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/* OBSOLETE Copyright 1988, 1989, 1991, 1993 Free Software Foundation, Inc. */
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/* OBSOLETE */
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/* OBSOLETE This file is part of GDB. */
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/* OBSOLETE */
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/* OBSOLETE This program is free software; you can redistribute it and/or modify */
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/* OBSOLETE it under the terms of the GNU General Public License as published by */
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/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
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/* OBSOLETE (at your option) any later version. */
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/* OBSOLETE */
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/* OBSOLETE This program is distributed in the hope that it will be useful, */
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/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* OBSOLETE GNU General Public License for more details. */
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/* OBSOLETE */
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/* OBSOLETE You should have received a copy of the GNU General Public License */
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/* OBSOLETE along with this program; if not, write to the Free Software */
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/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define TARGET_BYTE_ORDER BIG_ENDIAN */
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/* OBSOLETE */
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/* OBSOLETE /* Traditional Unix virtual address spaces have thre regions: text, */
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/* OBSOLETE data and stack. The text, initialised data, and uninitialised data */
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/* OBSOLETE are represented in separate segments of the a.out file. */
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/* OBSOLETE When a process dumps core, the data and stack regions are written */
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/* OBSOLETE to a core file. This gives a debugger enough information to */
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/* OBSOLETE reconstruct (and debug) the virtual address space at the time of */
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/* OBSOLETE the coredump. */
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/* OBSOLETE Pyramids have an distinct fourth region of the virtual address */
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/* OBSOLETE space, in which the contents of the windowed registers are stacked */
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/* OBSOLETE in fixed-size frames. Pyramid refer to this region as the control */
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/* OBSOLETE stack. Each call (or trap) automatically allocates a new register */
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/* OBSOLETE frame; each return deallocates the current frame and restores the */
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/* OBSOLETE windowed registers to their values before the call. */
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/* OBSOLETE */
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/* OBSOLETE When dumping core, the control stack is written to a core files as */
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/* OBSOLETE a third segment. The core-handling functions need to know to deal */
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/* OBSOLETE with it. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* Tell corefile.c there is an extra segment. *x/ */
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/* OBSOLETE #define REG_STACK_SEGMENT */
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/* OBSOLETE */
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/* OBSOLETE /* Floating point is IEEE compatible on most Pyramid hardware */
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/* OBSOLETE (Older processors do not have IEEE NaNs). *x/ */
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/* OBSOLETE #define IEEE_FLOAT */
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/* OBSOLETE */
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/* OBSOLETE /* Offset from address of function to start of its code. */
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/* OBSOLETE Zero on most machines. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FUNCTION_START_OFFSET 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Advance PC across any function entry prologue instructions */
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/* OBSOLETE to reach some "real" code. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* FIXME -- do we want to skip insns to allocate the local frame? */
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/* OBSOLETE If so, what do they look like? */
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/* OBSOLETE This is becoming harder, since tege@sics.SE wants to change */
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/* OBSOLETE gcc to not output a prologue when no frame is needed. *x/ */
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/* OBSOLETE #define SKIP_PROLOGUE(pc) (pc) */
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/* OBSOLETE */
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/* OBSOLETE */
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/* OBSOLETE /* Immediately after a function call, return the saved pc. */
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/* OBSOLETE Can't always go through the frames for this because on some machines */
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/* OBSOLETE the new frame is not set up until the new function executes */
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/* OBSOLETE some instructions. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame) */
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/* OBSOLETE */
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/* OBSOLETE /* Address of end of stack space. *x/ */
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/* OBSOLETE /* This seems to be right for the 90x comp.vuw.ac.nz. */
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/* OBSOLETE The correct value at any site may be a function of the configured */
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/* OBSOLETE maximum control stack depth. If so, I don't know where the */
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/* OBSOLETE control-stack depth is configured, so I can't #include it here. *x/ */
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/* OBSOLETE #define STACK_END_ADDR (0xc00cc000) */
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/* OBSOLETE */
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/* OBSOLETE /* Register window stack (Control stack) stack definitions */
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/* OBSOLETE - Address of beginning of control stack. */
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/* OBSOLETE - size of control stack frame */
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/* OBSOLETE (Note that since crts0 is usually the first function called, */
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/* OBSOLETE main()'s control stack is one frame (0x80 bytes) beyond this value. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define CONTROL_STACK_ADDR (0xc00cd000) */
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/* OBSOLETE */
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/* OBSOLETE /* Bytes in a register window -- 16 parameter regs, 16 local regs */
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/* OBSOLETE for each call, is 32 regs * 4 bytes *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define CONTROL_STACK_FRAME_SIZE (32*4) */
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/* OBSOLETE */
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/* OBSOLETE /* FIXME. On a pyr, Data Stack grows downward; control stack goes upwards. */
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/* OBSOLETE Which direction should we use for INNER_THAN, PC_INNER_THAN ?? *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) */
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/* OBSOLETE */
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/* OBSOLETE /* Stack must be aligned on 32-bit boundaries when synthesizing */
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/* OBSOLETE function calls. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define STACK_ALIGN(ADDR) (((ADDR) + 3) & -4) */
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/* OBSOLETE */
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/* OBSOLETE /* Sequence of bytes for breakpoint instruction. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define BREAKPOINT {0xf0, 00, 00, 00} */
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/* OBSOLETE */
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/* OBSOLETE /* Amount PC must be decremented by after a breakpoint. */
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/* OBSOLETE This is often the number of bytes in BREAKPOINT */
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/* OBSOLETE but not always. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define DECR_PC_AFTER_BREAK 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Say how long (ordinary) registers are. This is a piece of bogosity */
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/* OBSOLETE used in push_word and a few other places; REGISTER_RAW_SIZE is the */
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/* OBSOLETE real way to know how big a register is. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_SIZE 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Number of machine registers *x/ */
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/* OBSOLETE /* pyramids have 64, plus one for the PSW; plus perhaps one more for the */
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/* OBSOLETE kernel stack pointer (ksp) and control-stack pointer (CSP) *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define NUM_REGS 67 */
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/* OBSOLETE */
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/* OBSOLETE /* Initializer for an array of names of registers. */
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/* OBSOLETE There should be NUM_REGS strings in this initializer. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_NAMES \ */
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/* OBSOLETE {"gr0", "gr1", "gr2", "gr3", "gr4", "gr5", "gr6", "gr7", \ */
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/* OBSOLETE "gr8", "gr9", "gr10", "gr11", "logpsw", "cfp", "sp", "pc", \ */
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/* OBSOLETE "pr0", "pr1", "pr2", "pr3", "pr4", "pr5", "pr6", "pr7", \ */
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/* OBSOLETE "pr8", "pr9", "pr10", "pr11", "pr12", "pr13", "pr14", "pr15", \ */
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/* OBSOLETE "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", \ */
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/* OBSOLETE "lr8", "lr9", "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", \ */
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/* OBSOLETE "tr0", "tr1", "tr2", "tr3", "tr4", "tr5", "tr6", "tr7", \ */
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/* OBSOLETE "tr8", "tr9", "tr10", "tr11", "tr12", "tr13", "tr14", "tr15", \ */
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/* OBSOLETE "psw", "ksp", "csp"} */
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| 134 |
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/* OBSOLETE */
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| 135 |
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/* OBSOLETE /* Register numbers of various important registers. */
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/* OBSOLETE Note that some of these values are "real" register numbers, */
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/* OBSOLETE and correspond to the general registers of the machine, */
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/* OBSOLETE and some are "phony" register numbers which are too large */
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/* OBSOLETE to be actual register numbers as far as the user is concerned */
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| 140 |
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/* OBSOLETE but do serve to get the desired values when passed to read_register. *x/ */
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/* OBSOLETE */
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| 142 |
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/* OBSOLETE /* pseudo-registers: *x/ */
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/* OBSOLETE #define PS_REGNUM 64 /* Contains processor status *x/ */
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/* OBSOLETE #define PSW_REGNUM 64 /* Contains current psw, whatever it is.*x/ */
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| 145 |
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/* OBSOLETE #define CSP_REGNUM 65 /* address of this control stack frame*x/ */
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| 146 |
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/* OBSOLETE #define KSP_REGNUM 66 /* Contains process's Kernel Stack Pointer *x/ */
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/* OBSOLETE */
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| 148 |
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/* OBSOLETE #define CFP_REGNUM 13 /* Current data-stack frame ptr *x/ */
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/* OBSOLETE #define TR0_REGNUM 48 /* After function call, contains */
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/* OBSOLETE function result *x/ */
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/* OBSOLETE */
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| 152 |
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/* OBSOLETE /* Registers interesting to the machine-independent part of gdb*x/ */
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| 153 |
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/* OBSOLETE */
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| 154 |
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/* OBSOLETE #define FP_REGNUM CSP_REGNUM /* Contains address of executing (control) */
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/* OBSOLETE stack frame *x/ */
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/* OBSOLETE #define SP_REGNUM 14 /* Contains address of top of stack -??*x/ */
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| 157 |
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/* OBSOLETE #define PC_REGNUM 15 /* Contains program counter *x/ */
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| 158 |
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/* OBSOLETE */
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| 159 |
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/* OBSOLETE /* Define DO_REGISTERS_INFO() to do machine-specific formatting */
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/* OBSOLETE of register dumps. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define DO_REGISTERS_INFO(_regnum, fp) pyr_do_registers_info(_regnum, fp) */
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/* OBSOLETE */
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/* OBSOLETE /* need this so we can find the global registers: they never get saved. *x/ */
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/* OBSOLETE extern unsigned int global_reg_offset; */
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/* OBSOLETE extern unsigned int last_frame_offset; */
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/* OBSOLETE */
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| 168 |
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/* OBSOLETE /* Total amount of space needed to store our copies of the machine's */
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/* OBSOLETE register state, the array `registers'. *x/ */
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| 170 |
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/* OBSOLETE #define REGISTER_BYTES (NUM_REGS*4) */
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| 171 |
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/* OBSOLETE */
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| 172 |
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/* OBSOLETE /* the Pyramid has register windows. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define HAVE_REGISTER_WINDOWS */
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| 175 |
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/* OBSOLETE */
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| 176 |
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/* OBSOLETE /* Is this register part of the register window system? A yes answer */
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/* OBSOLETE implies that 1) The name of this register will not be the same in */
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| 178 |
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/* OBSOLETE other frames, and 2) This register is automatically "saved" (out */
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| 179 |
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/* OBSOLETE registers shifting into ins counts) upon subroutine calls and thus */
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| 180 |
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/* OBSOLETE there is no need to search more than one stack frame for it. *x/ */
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| 181 |
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/* OBSOLETE */
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| 182 |
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/* OBSOLETE #define REGISTER_IN_WINDOW_P(regnum) \ */
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/* OBSOLETE ((regnum) >= 16 && (regnum) < 64) */
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/* OBSOLETE */
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| 185 |
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/* OBSOLETE /* Index within `registers' of the first byte of the space for */
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/* OBSOLETE register N. *x/ */
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/* OBSOLETE */
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| 188 |
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/* OBSOLETE #define REGISTER_BYTE(N) ((N) * 4) */
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| 189 |
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/* OBSOLETE */
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| 190 |
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/* OBSOLETE /* Number of bytes of storage in the actual machine representation */
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| 191 |
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/* OBSOLETE for register N. On the Pyramid, all regs are 4 bytes. *x/ */
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| 192 |
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/* OBSOLETE */
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| 193 |
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/* OBSOLETE #define REGISTER_RAW_SIZE(N) 4 */
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| 194 |
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/* OBSOLETE */
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| 195 |
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/* OBSOLETE /* Number of bytes of storage in the program's representation */
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| 196 |
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/* OBSOLETE for register N. On the Pyramid, all regs are 4 bytes. *x/ */
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| 197 |
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/* OBSOLETE */
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| 198 |
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/* OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) 4 */
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| 199 |
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/* OBSOLETE */
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| 200 |
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/* OBSOLETE /* Largest value REGISTER_RAW_SIZE can have. *x/ */
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| 201 |
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/* OBSOLETE */
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| 202 |
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/* OBSOLETE #define MAX_REGISTER_RAW_SIZE 4 */
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| 203 |
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/* OBSOLETE */
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| 204 |
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/* OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have. *x/ */
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| 205 |
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/* OBSOLETE */
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| 206 |
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/* OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 4 */
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| 207 |
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/* OBSOLETE */
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| 208 |
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/* OBSOLETE /* Return the GDB type object for the "standard" data type */
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| 209 |
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/* OBSOLETE of data in register N. *x/ */
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| 210 |
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/* OBSOLETE */
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| 211 |
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/* OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) builtin_type_int */
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| 212 |
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/* OBSOLETE */
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| 213 |
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/* OBSOLETE /* FIXME: It seems impossible for both EXTRACT_RETURN_VALUE and */
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| 214 |
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/* OBSOLETE STORE_RETURN_VALUE to be correct. *x/ */
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| 215 |
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/* OBSOLETE */
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| 216 |
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/* OBSOLETE /* Store the address of the place in which to copy the structure the */
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| 217 |
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/* OBSOLETE subroutine will return. This is called from call_function. *x/ */
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| 218 |
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/* OBSOLETE */
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| 219 |
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/* OBSOLETE /****FIXME****x/ */
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| 220 |
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/* OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \ */
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| 221 |
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/* OBSOLETE { write_register (TR0_REGNUM, (ADDR)); } */
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| 222 |
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/* OBSOLETE */
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| 223 |
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/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
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| 224 |
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/* OBSOLETE a function return value of type TYPE, and copy that, in virtual format, */
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| 225 |
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/* OBSOLETE into VALBUF. *x/ */
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| 226 |
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/* OBSOLETE */
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| 227 |
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/* OBSOLETE /* Note that on a register-windowing machine (eg, Pyr, SPARC), this is */
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| 228 |
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/* OBSOLETE where the value is found after the function call -- ie, it should */
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| 229 |
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/* OBSOLETE correspond to GNU CC's FUNCTION_VALUE rather than FUNCTION_OUTGOING_VALUE.*x/ */
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| 230 |
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/* OBSOLETE */
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| 231 |
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/* OBSOLETE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ */
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| 232 |
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/* OBSOLETE memcpy (VALBUF, ((int *)(REGBUF))+TR0_REGNUM, TYPE_LENGTH (TYPE)) */
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| 233 |
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/* OBSOLETE */
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| 234 |
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/* OBSOLETE /* Write into appropriate registers a function return value */
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| 235 |
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/* OBSOLETE of type TYPE, given in virtual format. *x/ */
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| 236 |
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/* OBSOLETE /* on pyrs, values are returned in *x/ */
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| 237 |
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/* OBSOLETE */
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| 238 |
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/* OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ */
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| 239 |
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/* OBSOLETE write_register_bytes (REGISTER_BYTE(TR0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)) */
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| 240 |
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/* OBSOLETE */
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| 241 |
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/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
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| 242 |
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/* OBSOLETE the address in which a function should return its structure value, */
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| 243 |
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/* OBSOLETE as a CORE_ADDR (or an expression that can be used as one). *x/ */
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| 244 |
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/* OBSOLETE /* FIXME *x/ */
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| 245 |
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/* OBSOLETE #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ */
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| 246 |
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/* OBSOLETE ( ((int *)(REGBUF)) [TR0_REGNUM]) */
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| 247 |
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/* OBSOLETE */
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| 248 |
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/* OBSOLETE */
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| 249 |
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/* OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame */
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| 250 |
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/* OBSOLETE (its caller). *x/ */
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| 251 |
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/* OBSOLETE */
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| 252 |
|
|
/* OBSOLETE #define EXTRA_FRAME_INFO \ */
|
| 253 |
|
|
/* OBSOLETE CORE_ADDR bottom; \ */
|
| 254 |
|
|
/* OBSOLETE CORE_ADDR frame_cfp; \ */
|
| 255 |
|
|
/* OBSOLETE CORE_ADDR frame_window_addr; */
|
| 256 |
|
|
/* OBSOLETE */
|
| 257 |
|
|
/* OBSOLETE /* The bottom field is misnamed, since it might imply that memory from */
|
| 258 |
|
|
/* OBSOLETE bottom to frame contains this frame. That need not be true if */
|
| 259 |
|
|
/* OBSOLETE stack frames are allocated in different segments (e.g. some on a */
|
| 260 |
|
|
/* OBSOLETE stack, some on a heap in the data segment). *x/ */
|
| 261 |
|
|
/* OBSOLETE */
|
| 262 |
|
|
/* OBSOLETE #define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \ */
|
| 263 |
|
|
/* OBSOLETE do { \ */
|
| 264 |
|
|
/* OBSOLETE (fci)->frame_window_addr = (fci)->frame; \ */
|
| 265 |
|
|
/* OBSOLETE (fci)->bottom = \ */
|
| 266 |
|
|
/* OBSOLETE ((fci)->next ? \ */
|
| 267 |
|
|
/* OBSOLETE ((fci)->frame == (fci)->next->frame ? \ */
|
| 268 |
|
|
/* OBSOLETE (fci)->next->bottom : (fci)->next->frame) : \ */
|
| 269 |
|
|
/* OBSOLETE read_register (SP_REGNUM)); \ */
|
| 270 |
|
|
/* OBSOLETE (fci)->frame_cfp = \ */
|
| 271 |
|
|
/* OBSOLETE read_register (CFP_REGNUM); \ */
|
| 272 |
|
|
/* OBSOLETE /***fprintf (stderr, \ */
|
| 273 |
|
|
/* OBSOLETE "[[creating new frame for %0x,pc=%0x,csp=%0x]]\n", \ */
|
| 274 |
|
|
/* OBSOLETE (fci)->frame, (fci)->pc,(fci)->frame_cfp);*x/ \ */
|
| 275 |
|
|
/* OBSOLETE } while (0); */
|
| 276 |
|
|
/* OBSOLETE */
|
| 277 |
|
|
/* OBSOLETE /* FRAME_CHAIN takes a frame's nominal address */
|
| 278 |
|
|
/* OBSOLETE and produces the frame's chain-pointer. *x/ */
|
| 279 |
|
|
/* OBSOLETE */
|
| 280 |
|
|
/* OBSOLETE /* In the case of the pyr, the frame's nominal address is the address */
|
| 281 |
|
|
/* OBSOLETE of parameter register 0. The previous frame is found 32 words up. *x/ */
|
| 282 |
|
|
/* OBSOLETE */
|
| 283 |
|
|
/* OBSOLETE #define FRAME_CHAIN(thisframe) \ */
|
| 284 |
|
|
/* OBSOLETE ( (thisframe) -> frame - CONTROL_STACK_FRAME_SIZE) */
|
| 285 |
|
|
/* OBSOLETE */
|
| 286 |
|
|
/* OBSOLETE /*((thisframe) >= CONTROL_STACK_ADDR))*x/ */
|
| 287 |
|
|
/* OBSOLETE */
|
| 288 |
|
|
/* OBSOLETE /* Define other aspects of the stack frame. *x/ */
|
| 289 |
|
|
/* OBSOLETE */
|
| 290 |
|
|
/* OBSOLETE /* A macro that tells us whether the function invocation represented */
|
| 291 |
|
|
/* OBSOLETE by FI does not have a frame on the stack associated with it. If it */
|
| 292 |
|
|
/* OBSOLETE does not, FRAMELESS is set to 1, else 0. */
|
| 293 |
|
|
/* OBSOLETE */
|
| 294 |
|
|
/* OBSOLETE I do not understand what this means on a Pyramid, where functions */
|
| 295 |
|
|
/* OBSOLETE *always* have a control-stack frame, but may or may not have a */
|
| 296 |
|
|
/* OBSOLETE frame on the data stack. Since GBD uses the value of the */
|
| 297 |
|
|
/* OBSOLETE control stack pointer as its "address" of a frame, FRAMELESS */
|
| 298 |
|
|
/* OBSOLETE is always 1, so does not need to be defined. *x/ */
|
| 299 |
|
|
/* OBSOLETE */
|
| 300 |
|
|
/* OBSOLETE */
|
| 301 |
|
|
/* OBSOLETE /* Where is the PC for a specific frame *x/ */
|
| 302 |
|
|
/* OBSOLETE */
|
| 303 |
|
|
/* OBSOLETE #define FRAME_SAVED_PC(fi) \ */
|
| 304 |
|
|
/* OBSOLETE ((CORE_ADDR) (read_memory_integer ( (fi) -> frame + 60, 4))) */
|
| 305 |
|
|
/* OBSOLETE */
|
| 306 |
|
|
/* OBSOLETE /* There may be bugs in FRAME_ARGS_ADDRESS and FRAME_LOCALS_ADDRESS; */
|
| 307 |
|
|
/* OBSOLETE or there may be bugs in accessing the registers that break */
|
| 308 |
|
|
/* OBSOLETE their definitions. */
|
| 309 |
|
|
/* OBSOLETE Having the macros expand into functions makes them easier to debug. */
|
| 310 |
|
|
/* OBSOLETE When the bug is finally located, the inline macro defintions can */
|
| 311 |
|
|
/* OBSOLETE be un-#if 0ed, and frame_args_addr and frame_locals_address can */
|
| 312 |
|
|
/* OBSOLETE be deleted from pyr-dep.c *x/ */
|
| 313 |
|
|
/* OBSOLETE */
|
| 314 |
|
|
/* OBSOLETE /* If the argument is on the stack, it will be here. *x/ */
|
| 315 |
|
|
/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) \ */
|
| 316 |
|
|
/* OBSOLETE frame_args_addr(fi) */
|
| 317 |
|
|
/* OBSOLETE */
|
| 318 |
|
|
/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) \ */
|
| 319 |
|
|
/* OBSOLETE frame_locals_address(fi) */
|
| 320 |
|
|
/* OBSOLETE */
|
| 321 |
|
|
/* OBSOLETE /* The following definitions doesn't seem to work. */
|
| 322 |
|
|
/* OBSOLETE I don't understand why. *x/ */
|
| 323 |
|
|
/* OBSOLETE #if 0 */
|
| 324 |
|
|
/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) \ */
|
| 325 |
|
|
/* OBSOLETE /*(FRAME_FP(fi) + (13*4))*x/ (read_register (CFP_REGNUM)) */
|
| 326 |
|
|
/* OBSOLETE */
|
| 327 |
|
|
/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) \ */
|
| 328 |
|
|
/* OBSOLETE ((fi)->frame +(16*4)) */
|
| 329 |
|
|
/* OBSOLETE */
|
| 330 |
|
|
/* OBSOLETE #endif /* 0 *x/ */
|
| 331 |
|
|
/* OBSOLETE */
|
| 332 |
|
|
/* OBSOLETE /* Return number of args passed to a frame. */
|
| 333 |
|
|
/* OBSOLETE Can return -1, meaning no way to tell. *x/ */
|
| 334 |
|
|
/* OBSOLETE */
|
| 335 |
|
|
/* OBSOLETE #define FRAME_NUM_ARGS(fi) (-1) */
|
| 336 |
|
|
/* OBSOLETE */
|
| 337 |
|
|
/* OBSOLETE /* Return number of bytes at start of arglist that are not really args. *x/ */
|
| 338 |
|
|
/* OBSOLETE */
|
| 339 |
|
|
/* OBSOLETE #define FRAME_ARGS_SKIP 0 */
|
| 340 |
|
|
/* OBSOLETE */
|
| 341 |
|
|
/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, */
|
| 342 |
|
|
/* OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. */
|
| 343 |
|
|
/* OBSOLETE This includes special registers such as pc and fp saved in special */
|
| 344 |
|
|
/* OBSOLETE ways in the stack frame. sp is even more special: */
|
| 345 |
|
|
/* OBSOLETE the address we return for it IS the sp for the next frame. */
|
| 346 |
|
|
/* OBSOLETE */
|
| 347 |
|
|
/* OBSOLETE Note that on register window machines, we are currently making the */
|
| 348 |
|
|
/* OBSOLETE assumption that window registers are being saved somewhere in the */
|
| 349 |
|
|
/* OBSOLETE frame in which they are being used. If they are stored in an */
|
| 350 |
|
|
/* OBSOLETE inferior frame, find_saved_register will break. */
|
| 351 |
|
|
/* OBSOLETE */
|
| 352 |
|
|
/* OBSOLETE On pyrs, frames of window registers are stored contiguously on a */
|
| 353 |
|
|
/* OBSOLETE separate stack. All window registers are always stored. */
|
| 354 |
|
|
/* OBSOLETE The pc and psw (gr15 and gr14) are also always saved: the call */
|
| 355 |
|
|
/* OBSOLETE insn saves them in pr15 and pr14 of the new frame (tr15,tr14 of the */
|
| 356 |
|
|
/* OBSOLETE old frame). */
|
| 357 |
|
|
/* OBSOLETE The data-stack frame pointer (CFP) is only saved in functions which */
|
| 358 |
|
|
/* OBSOLETE allocate a (data)stack frame (with "adsf"). We detect them by */
|
| 359 |
|
|
/* OBSOLETE looking at the first insn of the procedure. */
|
| 360 |
|
|
/* OBSOLETE */
|
| 361 |
|
|
/* OBSOLETE Other non-window registers (gr0-gr11) are never saved. Pyramid's C */
|
| 362 |
|
|
/* OBSOLETE compiler and gcc currently ignore them, so it's not an issue. *x/ */
|
| 363 |
|
|
/* OBSOLETE */
|
| 364 |
|
|
/* OBSOLETE #define FRAME_FIND_SAVED_REGS(fi_p, frame_saved_regs) \ */
|
| 365 |
|
|
/* OBSOLETE { register int regnum; \ */
|
| 366 |
|
|
/* OBSOLETE register CORE_ADDR pc; \ */
|
| 367 |
|
|
/* OBSOLETE register CORE_ADDR fn_start_pc; \ */
|
| 368 |
|
|
/* OBSOLETE register int first_insn; \ */
|
| 369 |
|
|
/* OBSOLETE register CORE_ADDR prev_cf_addr; \ */
|
| 370 |
|
|
/* OBSOLETE register int window_ptr; \ */
|
| 371 |
|
|
/* OBSOLETE if (!fi_p) fatal ("Bad frame info struct in FRAME_FIND_SAVED_REGS"); \ */
|
| 372 |
|
|
/* OBSOLETE memset (&(frame_saved_regs), '\0', sizeof (frame_saved_regs)); \ */
|
| 373 |
|
|
/* OBSOLETE \ */
|
| 374 |
|
|
/* OBSOLETE window_ptr = prev_cf_addr = FRAME_FP(fi_p); \ */
|
| 375 |
|
|
/* OBSOLETE \ */
|
| 376 |
|
|
/* OBSOLETE for (regnum = 16 ; regnum < 64; regnum++,window_ptr+=4) \ */
|
| 377 |
|
|
/* OBSOLETE { \ */
|
| 378 |
|
|
/* OBSOLETE (frame_saved_regs).regs[regnum] = window_ptr; \ */
|
| 379 |
|
|
/* OBSOLETE } \ */
|
| 380 |
|
|
/* OBSOLETE \ */
|
| 381 |
|
|
/* OBSOLETE /* In each window, psw, and pc are "saved" in tr14,tr15. *x/ \ */
|
| 382 |
|
|
/* OBSOLETE /*** psw is sometimes saved in gr12 (so sez <sys/pcb.h>) *x/ \ */
|
| 383 |
|
|
/* OBSOLETE (frame_saved_regs).regs[PS_REGNUM] = FRAME_FP(fi_p) + (14*4); \ */
|
| 384 |
|
|
/* OBSOLETE \ */
|
| 385 |
|
|
/* OBSOLETE /*(frame_saved_regs).regs[PC_REGNUM] = (frame_saved_regs).regs[31];*x/ \ */
|
| 386 |
|
|
/* OBSOLETE (frame_saved_regs).regs[PC_REGNUM] = FRAME_FP(fi_p) + ((15+32)*4); \ */
|
| 387 |
|
|
/* OBSOLETE \ */
|
| 388 |
|
|
/* OBSOLETE /* Functions that allocate a frame save sp *where*? *x/ \ */
|
| 389 |
|
|
/* OBSOLETE /*first_insn = read_memory_integer (get_pc_function_start ((fi_p)->pc),4); *x/ \ */
|
| 390 |
|
|
/* OBSOLETE \ */
|
| 391 |
|
|
/* OBSOLETE fn_start_pc = (get_pc_function_start ((fi_p)->pc)); \ */
|
| 392 |
|
|
/* OBSOLETE first_insn = read_memory_integer(fn_start_pc, 4); \ */
|
| 393 |
|
|
/* OBSOLETE \ */
|
| 394 |
|
|
/* OBSOLETE if (0x08 == ((first_insn >> 20) &0x0ff)) { \ */
|
| 395 |
|
|
/* OBSOLETE /* NB: because WINDOW_REGISTER_P(cfp) is false, a saved cfp \ */
|
| 396 |
|
|
/* OBSOLETE in this frame is only visible in this frame's callers. \ */
|
| 397 |
|
|
/* OBSOLETE That means the cfp we mark saved is my caller's cfp, ie pr13. \ */
|
| 398 |
|
|
/* OBSOLETE I don't understand why we don't have to do that for pc, too. *x/ \ */
|
| 399 |
|
|
/* OBSOLETE \ */
|
| 400 |
|
|
/* OBSOLETE (frame_saved_regs).regs[CFP_REGNUM] = FRAME_FP(fi_p)+(13*4); \ */
|
| 401 |
|
|
/* OBSOLETE \ */
|
| 402 |
|
|
/* OBSOLETE (frame_saved_regs).regs[SP_REGNUM] = \ */
|
| 403 |
|
|
/* OBSOLETE read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ */
|
| 404 |
|
|
/* OBSOLETE } \ */
|
| 405 |
|
|
/* OBSOLETE \ */
|
| 406 |
|
|
/* OBSOLETE /* \ */
|
| 407 |
|
|
/* OBSOLETE *(frame_saved_regs).regs[CFP_REGNUM] = (frame_saved_regs).regs[61]; \ */
|
| 408 |
|
|
/* OBSOLETE * (frame_saved_regs).regs[SP_REGNUM] = \ */
|
| 409 |
|
|
/* OBSOLETE * read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ */
|
| 410 |
|
|
/* OBSOLETE *x/ \ */
|
| 411 |
|
|
/* OBSOLETE \ */
|
| 412 |
|
|
/* OBSOLETE (frame_saved_regs).regs[CSP_REGNUM] = prev_cf_addr; \ */
|
| 413 |
|
|
/* OBSOLETE } */
|
| 414 |
|
|
/* OBSOLETE */
|
| 415 |
|
|
/* OBSOLETE /* Things needed for making the inferior call functions. *x/ */
|
| 416 |
|
|
/* OBSOLETE #if 0 */
|
| 417 |
|
|
/* OBSOLETE /* These are all lies. These macro definitions are appropriate for a */
|
| 418 |
|
|
/* OBSOLETE SPARC. On a pyramid, pushing a dummy frame will */
|
| 419 |
|
|
/* OBSOLETE surely involve writing the control stack pointer, */
|
| 420 |
|
|
/* OBSOLETE then saving the pc. This requires a privileged instruction. */
|
| 421 |
|
|
/* OBSOLETE Maybe one day Pyramid can be persuaded to add a syscall to do this. */
|
| 422 |
|
|
/* OBSOLETE Until then, we are out of luck. *x/ */
|
| 423 |
|
|
/* OBSOLETE */
|
| 424 |
|
|
/* OBSOLETE /* Push an empty stack frame, to record the current PC, etc. *x/ */
|
| 425 |
|
|
/* OBSOLETE */
|
| 426 |
|
|
/* OBSOLETE #define PUSH_DUMMY_FRAME \ */
|
| 427 |
|
|
/* OBSOLETE { register CORE_ADDR sp = read_register (SP_REGNUM);\ */
|
| 428 |
|
|
/* OBSOLETE register int regnum; \ */
|
| 429 |
|
|
/* OBSOLETE sp = push_word (sp, 0); /* arglist *x/ \ */
|
| 430 |
|
|
/* OBSOLETE for (regnum = 11; regnum >= 0; regnum--) \ */
|
| 431 |
|
|
/* OBSOLETE sp = push_word (sp, read_register (regnum)); \ */
|
| 432 |
|
|
/* OBSOLETE sp = push_word (sp, read_register (PC_REGNUM)); \ */
|
| 433 |
|
|
/* OBSOLETE sp = push_word (sp, read_register (FP_REGNUM)); \ */
|
| 434 |
|
|
/* OBSOLETE /* sp = push_word (sp, read_register (AP_REGNUM));*x/ \ */
|
| 435 |
|
|
/* OBSOLETE sp = push_word (sp, (read_register (PS_REGNUM) & 0xffef) \ */
|
| 436 |
|
|
/* OBSOLETE + 0x2fff0000); \ */
|
| 437 |
|
|
/* OBSOLETE sp = push_word (sp, 0); \ */
|
| 438 |
|
|
/* OBSOLETE write_register (SP_REGNUM, sp); \ */
|
| 439 |
|
|
/* OBSOLETE write_register (FP_REGNUM, sp); \ */
|
| 440 |
|
|
/* OBSOLETE /* write_register (AP_REGNUM, sp + 17 * sizeof (int));*x/ } */
|
| 441 |
|
|
/* OBSOLETE */
|
| 442 |
|
|
/* OBSOLETE /* Discard from the stack the innermost frame, restoring all registers. *x/ */
|
| 443 |
|
|
/* OBSOLETE */
|
| 444 |
|
|
/* OBSOLETE #define POP_FRAME \ */
|
| 445 |
|
|
/* OBSOLETE { register CORE_ADDR fp = read_register (FP_REGNUM); \ */
|
| 446 |
|
|
/* OBSOLETE register int regnum; \ */
|
| 447 |
|
|
/* OBSOLETE register int regmask = read_memory_integer (fp + 4, 4); \ */
|
| 448 |
|
|
/* OBSOLETE write_register (PS_REGNUM, \ */
|
| 449 |
|
|
/* OBSOLETE (regmask & 0xffff) \ */
|
| 450 |
|
|
/* OBSOLETE | (read_register (PS_REGNUM) & 0xffff0000)); \ */
|
| 451 |
|
|
/* OBSOLETE write_register (PC_REGNUM, read_memory_integer (fp + 16, 4)); \ */
|
| 452 |
|
|
/* OBSOLETE write_register (FP_REGNUM, read_memory_integer (fp + 12, 4)); \ */
|
| 453 |
|
|
/* OBSOLETE /* write_register (AP_REGNUM, read_memory_integer (fp + 8, 4));*x/ \ */
|
| 454 |
|
|
/* OBSOLETE fp += 16; \ */
|
| 455 |
|
|
/* OBSOLETE for (regnum = 0; regnum < 12; regnum++) \ */
|
| 456 |
|
|
/* OBSOLETE if (regmask & (0x10000 << regnum)) \ */
|
| 457 |
|
|
/* OBSOLETE write_register (regnum, read_memory_integer (fp += 4, 4)); \ */
|
| 458 |
|
|
/* OBSOLETE fp = fp + 4 + ((regmask >> 30) & 3); \ */
|
| 459 |
|
|
/* OBSOLETE if (regmask & 0x20000000) \ */
|
| 460 |
|
|
/* OBSOLETE { regnum = read_memory_integer (fp, 4); \ */
|
| 461 |
|
|
/* OBSOLETE fp += (regnum + 1) * 4; } \ */
|
| 462 |
|
|
/* OBSOLETE write_register (SP_REGNUM, fp); \ */
|
| 463 |
|
|
/* OBSOLETE set_current_frame (read_register (FP_REGNUM)); } */
|
| 464 |
|
|
/* OBSOLETE */
|
| 465 |
|
|
/* OBSOLETE /* This sequence of words is the instructions */
|
| 466 |
|
|
/* OBSOLETE calls #69, @#32323232 */
|
| 467 |
|
|
/* OBSOLETE bpt */
|
| 468 |
|
|
/* OBSOLETE Note this is 8 bytes. *x/ */
|
| 469 |
|
|
/* OBSOLETE */
|
| 470 |
|
|
/* OBSOLETE #define CALL_DUMMY {0x329f69fb, 0x03323232} */
|
| 471 |
|
|
/* OBSOLETE */
|
| 472 |
|
|
/* OBSOLETE #define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy *x/ */
|
| 473 |
|
|
/* OBSOLETE */
|
| 474 |
|
|
/* OBSOLETE /* Insert the specified number of args and function address */
|
| 475 |
|
|
/* OBSOLETE into a call sequence of the above form stored at DUMMYNAME. *x/ */
|
| 476 |
|
|
/* OBSOLETE */
|
| 477 |
|
|
/* OBSOLETE #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ */
|
| 478 |
|
|
/* OBSOLETE { *((char *) dummyname + 1) = nargs; \ */
|
| 479 |
|
|
/* OBSOLETE *(int *)((char *) dummyname + 3) = fun; } */
|
| 480 |
|
|
/* OBSOLETE #endif /* 0 *x/ */
|
| 481 |
|
|
/* OBSOLETE */
|
| 482 |
|
|
/* OBSOLETE #define POP_FRAME \ */
|
| 483 |
|
|
/* OBSOLETE { error ("The return command is not supported on this machine."); } */
|
