diff options
Diffstat (limited to 'gdb/config/i386/xm-symmetry.h')
| -rw-r--r-- | gdb/config/i386/xm-symmetry.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/gdb/config/i386/xm-symmetry.h b/gdb/config/i386/xm-symmetry.h new file mode 100644 index 0000000..a18340a --- /dev/null +++ b/gdb/config/i386/xm-symmetry.h @@ -0,0 +1,245 @@ +/* Definitions to make GDB run on a Sequent Symmetry under dynix 3.0, + with Weitek 1167 and i387 support. + Copyright 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. */ + +/* Symmetry version by Jay Vosburgh (uunet!sequent!fubar) */ + +/* This machine doesn't have the siginterrupt call. */ +#define NO_SIGINTERRUPT + +#define HAVE_WAIT_STRUCT + +/* XPT_DEBUG doesn't work yet under Dynix 3.0.12, but UNDEBUG does... */ +/* #define PTRACE_ATTACH XPT_DEBUG +#define PTRACE_DETACH XPT_UNDEBUG +#define ATTACH_DETACH */ + +#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)) + +/* The magic numbers below are offsets into u_ar0 in the user struct. + They live in <machine/reg.h>. Gdb calls this macro with blockend + holding u.u_ar0 - KERNEL_U_ADDR. Only the registers listed are + saved in the u area (along with a few others that aren't useful + here. See <machine/reg.h>). */ + +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ struct user foo; /* needed for finding fpu regs */ \ +switch (regno) { \ + case 0: \ + addr = blockend + EAX * sizeof(int); break; \ + case 1: \ + addr = blockend + EDX * sizeof(int); break; \ + case 2: \ + addr = blockend + ECX * sizeof(int); break; \ + case 3: /* st(0) */ \ + addr = blockend - \ + ((int)&foo.u_fpusave.fpu_stack[0][0] - (int)&foo); \ + break; \ + case 4: /* st(1) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[1][0] - (int)&foo); \ + break; \ + case 5: \ + addr = blockend + EBX * sizeof(int); break; \ + case 6: \ + addr = blockend + ESI * sizeof(int); break; \ + case 7: \ + addr = blockend + EDI * sizeof(int); break; \ + case 8: /* st(2) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[2][0] - (int)&foo); \ + break; \ + case 9: /* st(3) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[3][0] - (int)&foo); \ + break; \ + case 10: /* st(4) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[4][0] - (int)&foo); \ + break; \ + case 11: /* st(5) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[5][0] - (int)&foo); \ + break; \ + case 12: /* st(6) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[6][0] - (int)&foo); \ + break; \ + case 13: /* st(7) */ \ + addr = blockend - \ + ((int) &foo.u_fpusave.fpu_stack[7][0] - (int)&foo); \ + break; \ + case 14: \ + addr = blockend + ESP * sizeof(int); break; \ + case 15: \ + addr = blockend + EBP * sizeof(int); break; \ + case 16: \ + addr = blockend + EIP * sizeof(int); break; \ + case 17: \ + addr = blockend + FLAGS * sizeof(int); break; \ + case 18: /* fp1 */ \ + case 19: /* fp2 */ \ + case 20: /* fp3 */ \ + case 21: /* fp4 */ \ + case 22: /* fp5 */ \ + case 23: /* fp6 */ \ + case 24: /* fp7 */ \ + case 25: /* fp8 */ \ + case 26: /* fp9 */ \ + case 27: /* fp10 */ \ + case 28: /* fp11 */ \ + case 29: /* fp12 */ \ + case 30: /* fp13 */ \ + case 31: /* fp14 */ \ + case 32: /* fp15 */ \ + case 33: /* fp16 */ \ + case 34: /* fp17 */ \ + case 35: /* fp18 */ \ + case 36: /* fp19 */ \ + case 37: /* fp20 */ \ + case 38: /* fp21 */ \ + case 39: /* fp22 */ \ + case 40: /* fp23 */ \ + case 41: /* fp24 */ \ + case 42: /* fp25 */ \ + case 43: /* fp26 */ \ + case 44: /* fp27 */ \ + case 45: /* fp28 */ \ + case 46: /* fp29 */ \ + case 47: /* fp30 */ \ + case 48: /* fp31 */ \ + addr = blockend - \ + ((int) &foo.u_fpasave.fpa_regs[(regno)-18] - (int)&foo); \ + } \ +} + +/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */ + +#define FETCH_INFERIOR_REGISTERS + +/* We must fetch all the regs before storing, since we store all at once. */ + +#define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES) + +/* Interface definitions for kernel debugger KDB. */ +/* This doesn't work... */ +/* 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, %esp"); \ + asm ("movl %ebp, $0"); } + +/* Push the frame pointer register on the stack. */ +#define PUSH_FRAME_PTR \ + asm ("pushl %ebp"); + +/* Copy the top-of-stack to the frame pointer register. */ +#define POP_FRAME_PTR \ + asm ("movl (%esp), %ebp"); + +/* 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("pushad"); } +/* +{ asm("pushl %eax"); \ + asm("pushl %edx"); \ + asm("pushl %ecx"); \ + asm("pushl %st(0)"); \ + asm("pushl %st(1)"); \ + asm("pushl %ebx"); \ + asm("pushl %esi"); \ + asm("pushl %edi"); \ + asm("pushl %st(2)"); \ + asm("pushl %st(3)"); \ + asm("pushl %st(4)"); \ + asm("pushl %st(5)"); \ + asm("pushl %st(6)"); \ + asm("pushl %st(7)"); \ + asm("pushl %esp"); \ + asm("pushl %ebp"); \ + asm("pushl %eip"); \ + asm("pushl %eflags"); \ + asm("pushl %fp1"); \ + asm("pushl %fp2"); \ + asm("pushl %fp3"); \ + asm("pushl %fp4"); \ + asm("pushl %fp5"); \ + asm("pushl %fp6"); \ + asm("pushl %fp7"); \ + asm("pushl %fp8"); \ + asm("pushl %fp9"); \ + asm("pushl %fp10"); \ + asm("pushl %fp11"); \ + asm("pushl %fp12"); \ + asm("pushl %fp13"); \ + asm("pushl %fp14"); \ + asm("pushl %fp15"); \ + asm("pushl %fp16"); \ + asm("pushl %fp17"); \ + asm("pushl %fp18"); \ + asm("pushl %fp19"); \ + asm("pushl %fp20"); \ + asm("pushl %fp21"); \ + asm("pushl %fp22"); \ + asm("pushl %fp23"); \ + asm("pushl %fp24"); \ + asm("pushl %fp25"); \ + asm("pushl %fp26"); \ + asm("pushl %fp27"); \ + asm("pushl %fp28"); \ + asm("pushl %fp29"); \ + asm("pushl %fp30"); \ + asm("pushl %fp31"); \ +} +*/ +/* 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 ("popad"); } |