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First cut at support for all BSD variants on 386.

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* tm-i386bsd.h, xm-i386bsd.h:  New config files.
* i386b-nat.c:  New native support file.
* configure.in:  Add host and target for i[34]86-*-bsd*.
* config/i386bsd.mh, config/i386bsd.mt:  New config files.
This commit is contained in:
John Gilmore
1992-10-09 11:48:24 +00:00
parent 5a5fa3688c
commit 6d68588226
4 changed files with 139 additions and 0 deletions
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2
gdb/configure.in
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@@ -20,6 +20,7 @@ hppa*-hp-hpux) gdb_host=hppahpux ;;
i[34]86-ncr-*) gdb_host=ncr3000 ;;
i[34]86-sequent-*) gdb_host=symmetry ;;
i[34]86-*-bsd*) gdb_host=i386bsd ;;
i[34]86-*-go32) gdb_host=go32 ;;
i[34]86-*-linux) gdb_host=linux ;;
i[34]86-*-mach) gdb_host=i386mach ;;
@@ -132,6 +133,7 @@ i[34]86-*-aout) gdb_target=i386aout ;;
i[34]86-*-coff) gdb_target=i386v ;;
i[34]86-*-elf) gdb_target=i386v ;;
i[34]86-*-bsd*) gdb_target=i386bsd ;;
i[34]86-*-solaris*) gdb_target=i386sol2 ;;
i[34]86-*-sunos*) gdb_target=sun386 ;;
i[34]86-*-sysv4*) gdb_target=i386v4 ;;

59
gdb/i386b-nat.c Normal file
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@@ -0,0 +1,59 @@
/* 386BSD host interface.
Copyright (C) 1988, 1989, 1991 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. */
#include "defs.h"
#include <machine/reg.h>
/* this table must line up with REGISTER_NAMES in tm-i386.h */
/* symbols like 'tEAX' come from <machine/reg.h> */
static int tregmap[] =
{
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
tEIP, tEFLAGS, tCS, tSS
};
static int sregmap[] =
{
sEAX, sECX, sEDX, sEBX,
sESP, sEBP, sESI, sEDI,
sEIP, sEFLAGS, sCS, sSS
};
/* blockend is the value of u.u_ar0, and points to the
place where ES is stored. */
int
i386_register_u_addr (blockend, regnum)
int blockend;
int regnum;
{
/* The following condition is a kludge to get at the proper register map
depending upon the state of pcb_flag.
The proper condition would be
if (u.u_pcb.pcb_flag & FM_TRAP)
but that would require a ptrace call here and wouldn't work
for corefiles. */
if (blockend < 0x1fcc)
return (blockend + 4 * tregmap[regnum]);
else
return (blockend + 4 * sregmap[regnum]);
}

34
gdb/tm-i386bsd.h Normal file
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@@ -0,0 +1,34 @@
/* Macro definitions for i386 running under BSD Unix.
Copyright 1986, 1987, 1989, 1991, 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. */
/* Override number of expected traps from sysv. */
#define START_INFERIOR_TRAPS_EXPECTED 2
/* Most definitions from sysv could be used. */
#include "tm-i386v.h"
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
#define NAMES_HAVE_UNDERSCORE
#undef FLOAT_INFO /* No float info yet */
/* 386BSD cannot handle the segment registers. */
#undef NUM_REGS
#define NUM_REGS 12

44
gdb/xm-i386bsd.h Normal file
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@@ -0,0 +1,44 @@
/* Macro definitions for Intel 386 running BSD Unix, for GDB.
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. */
#define HOST_BYTE_ORDER LITTLE_ENDIAN
/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
the same as in the system <machine/limits.h> file. */
#undef INT_MIN
#define INT_MIN 0x80000000 /* min value for an int */
/* 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. */
#include <machine/vmparam.h>
#define KERNEL_U_ADDR USRSTACK
#define REGISTER_U_ADDR(addr, blockend, regno) \
(addr) = i386_register_u_addr ((blockend),(regno));
extern int
i386_register_u_addr PARAMS ((int, int));
#define PSIGNAL_IN_SIGNAL_H
#define PTRACE_ARG3_TYPE char*