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/* Parameters for Hewlett-Packard 9000/300 native support under bsd.
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Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Detect whether this is 4.3 or 4.4. */
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#include <errno.h>
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#include <sys/param.h>
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#ifdef BSD4_4
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/* BSD 4.4 alpha or better */
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/* We can attach to processes using ptrace. */
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#define ATTACH_DETACH
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#define PTRACE_ATTACH 10
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#define PTRACE_DETACH 11
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/* The third argument of ptrace is declared as this type. */
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#define PTRACE_ARG3_TYPE caddr_t
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/* U_REGS_OFFSET is the offset of the registers within the u area for
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ptrace purposes. */
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#define U_REGS_OFFSET \
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ptrace (PT_READ_U, inferior_pid, \
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(PTRACE_ARG3_TYPE) \
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(offsetof (struct user, u_kproc.kp_proc.p_md.md_regs)), 0) \
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- USRSTACK
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/* No user structure in 4.4, registers are relative to kernel stack
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which is fixed. */
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#define KERNEL_U_ADDR 0xFFF00000
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/* FIXME: Is ONE_PROCESS_WRITETEXT still true now that the kernel has
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copy-on-write? It not, move it to the 4.3-specific section below
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(now it is in xm-hp300bsd.h). */
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#else
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/* This is BSD 4.3 or something like it. */
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/* Get kernel u area address at run-time using BSD style nlist (). */
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#define KERNEL_U_ADDR_BSD
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#endif
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/* This was once broken for 4.4, but probably because we had the wrong
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KERNEL_U_ADDR. */
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/* This is a piece of magic that is given a register number REGNO
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and as BLOCKEND the address in the system of the end of the user structure
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and stores in ADDR the address in the kernel or core dump
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of that register. */
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ \
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if (regno < PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \
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else if (regno == PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_stackadj; \
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else if (regno == PC_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_pc; \
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else if (regno < FPC_REGNUM) \
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addr = (int) \
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&((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\
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else if (regno == FPC_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \
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else if (regno == FPS_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \
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else \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \
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}
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