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author | Fred Fish <fnf@specifix.com> | 1993-03-23 01:19:58 +0000 |
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committer | Fred Fish <fnf@specifix.com> | 1993-03-23 01:19:58 +0000 |
commit | 5076de826cefc4cd828a8cf4cd6940d9a82f9e70 (patch) | |
tree | d6a1288826d5e971b6f88cfa048f8f51b8ec3543 /gdb/config/vax/xm-vax.h | |
parent | 8256379df2a7043fdf6327a0190ab667cfbb84bf (diff) | |
download | gdb-5076de826cefc4cd828a8cf4cd6940d9a82f9e70.zip gdb-5076de826cefc4cd828a8cf4cd6940d9a82f9e70.tar.gz gdb-5076de826cefc4cd828a8cf4cd6940d9a82f9e70.tar.bz2 |
* config/{*.mt, *.mh}: All target and host makefile fragment
config files moved to an appropriate config/<cpu> subdirectory.
* nm-*, xm-*, tm-*: All native, host, and target files, which
get linked to nm.h, xm.h, and tm.h respectively by configure,
moved to appropriate config/<cpu> subdirectory.
Diffstat (limited to 'gdb/config/vax/xm-vax.h')
-rw-r--r-- | gdb/config/vax/xm-vax.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/gdb/config/vax/xm-vax.h b/gdb/config/vax/xm-vax.h new file mode 100644 index 0000000..3e91b41 --- /dev/null +++ b/gdb/config/vax/xm-vax.h @@ -0,0 +1,85 @@ +/* Common definitions to make GDB run on Vaxen under 4.2bsd and Ultrix. + Copyright (C) 1986, 1987, 1989, 1992 Free Software Foundation, Inc. + +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. */ + +#define HOST_BYTE_ORDER LITTLE_ENDIAN + +/* Get rid of any system-imposed stack limit if possible. */ + +#define SET_STACK_LIMIT_HUGE + +/* This is the amount to subtract from u.u_ar0 + to get the offset in the core file of the register values. */ + +#define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG)) + +/* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */ +#define ONE_PROCESS_WRITETEXT + +/* Interface definitions for kernel debugger KDB. */ + +/* Map machine fault codes into signal numbers. + First subtract 0, divide by 4, then index in a table. + Faults for which the entry in this table is 0 + are not handled by KDB; the program's own trap handler + gets to handle then. */ + +#define FAULT_CODE_ORIGIN 0 +#define FAULT_CODE_UNITS 4 +#define FAULT_TABLE \ +{ 0, SIGKILL, SIGSEGV, 0, 0, 0, 0, 0, \ + 0, 0, SIGTRAP, SIGTRAP, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0} + +/* Start running with a stack stretching from BEG to END. + BEG and END should be symbols meaningful to the assembler. + This is used only for kdb. */ + +#define INIT_STACK(beg, end) \ +{ asm (".globl end"); \ + asm ("movl $ end, sp"); \ + asm ("clrl fp"); } + +/* Push the frame pointer register on the stack. */ +#define PUSH_FRAME_PTR \ + asm ("pushl fp"); + +/* Copy the top-of-stack to the frame pointer register. */ +#define POP_FRAME_PTR \ + asm ("movl (sp), fp"); + +/* After KDB is entered by a fault, push all registers + that GDB thinks about (all NUM_REGS of them), + so that they appear in order of ascending GDB register number. + The fault code will be on the stack beyond the last register. */ + +#define PUSH_REGISTERS \ +{ asm ("pushl 8(sp)"); \ + asm ("pushl 8(sp)"); \ + asm ("pushal 0x14(sp)"); \ + asm ("pushr $037777"); } + +/* Assuming the registers (including processor status) have been + pushed on the stack in order of ascending GDB register number, + restore them and return to the address in the saved PC register. */ + +#define POP_REGISTERS \ +{ asm ("popr $037777"); \ + asm ("subl2 $8,(sp)"); \ + asm ("movl (sp),sp"); \ + asm ("rei"); } |