Add OpenBSD/m68k support.
* NEWS (New native configurations): Mention OpenBSD/m68k. * m68kbsd-tdep.c: New file. * m68kbsd-nat.c: New file. * Makefile.in (ALLDEPFILES): Add m68kbsd-nat.c and m68kbsd-tdep.c. (m68kbsd-nat.o, m68kbsd-tdep.o): New dependencies. * configure.host: Add m68k-*-openbsd. * configure.tgt: Add m68k-*-openbsd. * config/m68k/tm-obsd.h: New file. * config/m68k/obsd.mt: New file. * config/m68k/obsd.mh: New file. * config/djgpp/fnchange.lst: Add entries for m68kbsd-nat.c and m68kbsd-tdep.c.
This commit is contained in:
Mark Kettenis
parent
c40f49a4cd
commit
8f2d3ea000
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@ -1,3 +1,19 @@
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2004-05-01 Mark Kettenis <kettenis@gnu.org>
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Add OpenBSD/m68k support.
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* NEWS (New native configurations): Mention OpenBSD/m68k.
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* m68kbsd-tdep.c: New file.
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* m68kbsd-nat.c: New file.
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* Makefile.in (ALLDEPFILES): Add m68kbsd-nat.c and m68kbsd-tdep.c.
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(m68kbsd-nat.o, m68kbsd-tdep.o): New dependencies.
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* configure.host: Add m68k-*-openbsd.
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* configure.tgt: Add m68k-*-openbsd.
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* config/m68k/tm-obsd.h: New file.
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* config/m68k/obsd.mt: New file.
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* config/m68k/obsd.mh: New file.
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* config/djgpp/fnchange.lst: Add entries for m68kbsd-nat.c and
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m68kbsd-tdep.c.
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2004-04-30 Andrew Cagney <cagney@redhat.com>
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* mipsnbsd-tdep.c (mipsnbsd_pc_in_sigtramp): Delete function.
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@ -1340,6 +1340,7 @@ ALLDEPFILES = \
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lynx-nat.c m3-nat.c \
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m68hc11-tdep.c \
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m68k-tdep.c \
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m68kbsd-nat.c m68kbsd-tdep.c \
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mcore-tdep.c \
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mips-linux-nat.c mips-linux-tdep.c \
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mips-nat.c \
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@ -2017,6 +2018,11 @@ m68klinux-tdep.o: m68klinux-tdep.c $(defs_h) $(gdbcore_h) $(doublest_h) \
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$(floatformat_h) $(frame_h) $(target_h) $(gdb_string_h) \
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$(gdbtypes_h) $(osabi_h) $(regcache_h) $(objfiles_h) $(symtab_h) \
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$(m68k_tdep_h)
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m68kbsd-nat.o: m68kbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
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$(gdb_assert_h) $(m68k_tdep_h)
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m68kbsd-tdep.o: m68kbsd-tdep.c $(defs_h) $(arch_utils_h) $(osabi_h) \
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$(regcache_h) $(regset_h) $(gdb_assert_h) $(gdb_string_h) \
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$(m68k_tdep_h) $(solib_svr4_h)
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m68knbsd-nat.o: m68knbsd-nat.c $(defs_h) $(inferior_h) $(gdbcore_h) \
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$(regcache_h)
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m68knbsd-tdep.o: m68knbsd-tdep.c $(defs_h) $(gdbtypes_h) $(regcache_h)
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1
gdb/NEWS
1
gdb/NEWS
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@ -16,6 +16,7 @@ systems (Solaris, IRIX). Ref: server/519.
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* New native configurations
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OpenBSD/m68k m68k-*-openbsd*
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OpenBSD/powerpc powerpc-*-openbsd*
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NetBSD/vax vax-*-netbsd*
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OpenBSD/vax vax-*-openbsd*
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@ -141,6 +141,8 @@
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@V@/gdb/m2-exp.tab.c @V@/gdb/m2-exp_tab.c
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@V@/gdb/m68klinux-nat.c @V@/gdb/m68kl-nat.c
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@V@/gdb/m68klinux-tdep.c @V@/gdb/m68kl-tdep.c
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@V@/gdb/m68kbsd-nat.c @V@/gdb/m68bsd-nat.c
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@V@/gdb/m68kbsd-tdep.c @V@/gdb/m68bsd-tdep.c
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@V@/gdb/m68knbsd-nat.c @V@/gdb/m6nbsd-nat.c
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@V@/gdb/m68knbsd-tdep.c @V@/gdb/m6nbsd-tdep.c
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@V@/gdb/mips-linux-nat.c @V@/gdb/mipslnxnat.c
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@ -0,0 +1,4 @@
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# Host: OpenBSD/m68k
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NATDEPFILES= m68kbsd-nat.o fork-child.o infptrace.o inftarg.o \
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solib.o solib-sunos.o
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NAT_FILE= nm-nbsdaout.h
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@ -0,0 +1,3 @@
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# Target: OpenBSD/m68k
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TDEPFILES= m68k-tdep.o m68kbsd-tdep.o corelow.o solib.o solib-svr4.o
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TM_FILE= tm-obsd.h
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@ -0,0 +1,27 @@
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/* Target-dependent definitions for OpenBSD/m68k.
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Copyright 2004 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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|
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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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|
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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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#ifndef TM_OBSD_H
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#define TM_OBSD_H
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#include "solib.h"
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#endif /* tm-obsd.h */
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@ -85,6 +85,7 @@ ia64-*-linux*) gdb_host=linux ;;
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m68*-*-linux*) gdb_host=linux ;;
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m68*-*-netbsd*) gdb_host=nbsdaout ;;
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m68*-*-openbsd*) gdb_host=obsd ;;
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mips-sgi-irix5*) gdb_host=irix5 ;;
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mips-sgi-irix6*) gdb_host=irix6 ;;
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@ -114,6 +114,7 @@ m68*-*-linux*) gdb_target=linux
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build_gdbserver=yes
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;;
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m68*-*-netbsd*) gdb_target=nbsdaout ;;
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m68*-*-openbsd*) gdb_target=obsd ;;
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m68*-*-os68k*) gdb_target=os68k ;;
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m68*-*-uclinux*) gdb_target=monitor ;;
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m68*-*-vxworks*) gdb_target=vxworks68 ;;
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@ -0,0 +1,170 @@
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/* Native-dependent code for Motorola 68000 BSD's.
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Copyright 2004 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
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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||||
|
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You should have received a copy of the GNU General Public License
|
||||
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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#include "defs.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "gdb_assert.h"
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include "m68k-tdep.h"
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static int
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m68kbsd_gregset_supplies_p (int regnum)
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{
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return (regnum >= M68K_D0_REGNUM && regnum <= M68K_PC_REGNUM);
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}
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static int
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m68kbsd_fpregset_supplies_p (int regnum)
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{
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return (regnum >= M68K_FP0_REGNUM && regnum <= M68K_FPI_REGNUM);
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}
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/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
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static void
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m68kbsd_supply_gregset (struct regcache *regcache, const void *gregs)
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{
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const char *regs = gregs;
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int regnum;
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for (regnum = M68K_D0_REGNUM; regnum <= M68K_PC_REGNUM; regnum++)
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regcache_raw_supply (regcache, regnum, regs + regnum * 4);
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}
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/* Supply the floating-point registers stored in FPREGS to REGCACHE. */
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static void
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m68kbsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
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{
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const char *regs = fpregs;
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int regnum;
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for (regnum = M68K_FP0_REGNUM; regnum <= M68K_FPI_REGNUM; regnum++)
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regcache_raw_supply (regcache, regnum,
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regs + m68kbsd_fpreg_offset (regnum));
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}
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/* Collect the general-purpose registers from REGCACHE and store them
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in GREGS. */
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static void
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m68kbsd_collect_gregset (const struct regcache *regcache,
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void *gregs, int regnum)
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{
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char *regs = gregs;
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int i;
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for (i = M68K_D0_REGNUM; i <= M68K_PC_REGNUM; i++)
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{
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if (regnum == -1 || regnum == i)
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regcache_raw_collect (regcache, regnum, regs + i * 4);
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}
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}
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/* Collect the floating-point registers from REGCACHE and store them
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in FPREGS. */
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static void
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m68kbsd_collect_fpregset (struct regcache *regcache,
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void *fpregs, int regnum)
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{
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char *regs = fpregs;
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int i;
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for (i = M68K_FP0_REGNUM; i <= M68K_FPI_REGNUM; i++)
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{
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if (regnum == -1 || regnum == i)
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regcache_raw_collect (regcache, regnum,
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regs + m68kbsd_fpreg_offset (i));
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}
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}
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/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
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for all registers (including the floating-point registers). */
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void
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fetch_inferior_registers (int regnum)
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{
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if (regnum == -1 || m68kbsd_gregset_supplies_p (regnum))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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m68kbsd_supply_gregset (current_regcache, ®s);
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}
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if (regnum == -1 || m68kbsd_fpregset_supplies_p (regnum))
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{
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
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perror_with_name ("Couldn't get floating point status");
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m68kbsd_supply_fpregset (current_regcache, &fpregs);
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}
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}
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/* Store register REGNUM back into the inferior. If REGNUM is -1, do
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this for all registers (including the floating-point registers). */
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void
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store_inferior_registers (int regnum)
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{
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if (regnum == -1 || m68kbsd_gregset_supplies_p (regnum))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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m68kbsd_collect_gregset (current_regcache, ®s, regnum);
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if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't write registers");
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}
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if (regnum == -1 || m68kbsd_fpregset_supplies_p (regnum))
|
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{
|
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
|
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(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
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perror_with_name ("Couldn't get floating point status");
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m68kbsd_collect_fpregset (current_regcache, &fpregs, regnum);
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|
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if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
|
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(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
|
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perror_with_name ("Couldn't write floating point status");
|
||||
}
|
||||
}
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@ -0,0 +1,226 @@
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/* Target-dependent code for Motorola 68000 BSD's.
|
||||
|
||||
Copyright 2004 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., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include "defs.h"
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#include "arch-utils.h"
|
||||
#include "osabi.h"
|
||||
#include "regcache.h"
|
||||
#include "regset.h"
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|
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include "m68k-tdep.h"
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#include "solib-svr4.h"
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|
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/* Core file support. */
|
||||
|
||||
/* Sizeof `struct reg' in <machine/reg.h>. */
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#define M68KBSD_SIZEOF_GREGS (18 * 4)
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|
||||
/* Sizeof `struct fpreg' in <machine/reg.h. */
|
||||
#define M68KBSD_SIZEOF_FPREGS (((8 * 3) + 3) * 4)
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|
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int
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m68kbsd_fpreg_offset (int regnum)
|
||||
{
|
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if (regnum >= M68K_FPC_REGNUM)
|
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return 8 * 12 + (regnum - M68K_FPC_REGNUM) * 4;
|
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|
||||
return (regnum - M68K_FP0_REGNUM) * 12;
|
||||
}
|
||||
|
||||
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
|
||||
in the floating-point register set REGSET to register cache
|
||||
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
|
||||
|
||||
static void
|
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m68kbsd_supply_fpregset (const struct regset *regset,
|
||||
struct regcache *regcache,
|
||||
int regnum, const void *fpregs, size_t len)
|
||||
{
|
||||
const char *regs = fpregs;
|
||||
int i;
|
||||
|
||||
gdb_assert (len >= M68KBSD_SIZEOF_FPREGS);
|
||||
|
||||
for (i = M68K_FP0_REGNUM; i <= M68K_PC_REGNUM; i++)
|
||||
{
|
||||
if (regnum == i || regnum == -1)
|
||||
regcache_raw_supply (regcache, i, regs + m68kbsd_fpreg_offset (i));
|
||||
}
|
||||
}
|
||||
|
||||
/* Supply register REGNUM from the buffer specified by GREGS and LEN
|
||||
in the general-purpose register set REGSET to register cache
|
||||
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
|
||||
|
||||
static void
|
||||
m68kbsd_supply_gregset (const struct regset *regset,
|
||||
struct regcache *regcache,
|
||||
int regnum, const void *gregs, size_t len)
|
||||
{
|
||||
const char *regs = gregs;
|
||||
int i;
|
||||
|
||||
gdb_assert (len >= M68KBSD_SIZEOF_GREGS);
|
||||
|
||||
for (i = M68K_D0_REGNUM; i <= M68K_PC_REGNUM; i++)
|
||||
{
|
||||
if (regnum == i || regnum == -1)
|
||||
regcache_raw_supply (regcache, i, regs + i * 4);
|
||||
}
|
||||
|
||||
if (len >= M68KBSD_SIZEOF_GREGS + M68KBSD_SIZEOF_FPREGS)
|
||||
{
|
||||
regs += M68KBSD_SIZEOF_GREGS;
|
||||
len -= M68KBSD_SIZEOF_GREGS;
|
||||
m68kbsd_supply_fpregset (regset, regcache, regnum, regs, len);
|
||||
}
|
||||
}
|
||||
|
||||
/* Motorola 68000 register sets. */
|
||||
|
||||
static struct regset m68kbsd_gregset =
|
||||
{
|
||||
NULL,
|
||||
m68kbsd_supply_gregset
|
||||
};
|
||||
|
||||
static struct regset m68kbsd_fpregset =
|
||||
{
|
||||
NULL,
|
||||
m68kbsd_supply_fpregset
|
||||
};
|
||||
|
||||
/* Return the appropriate register set for the core section identified
|
||||
by SECT_NAME and SECT_SIZE. */
|
||||
|
||||
static const struct regset *
|
||||
m68kbsd_regset_from_core_section (struct gdbarch *gdbarch,
|
||||
const char *sect_name, size_t sect_size)
|
||||
{
|
||||
if (strcmp (sect_name, ".reg") == 0 && sect_size >= M68KBSD_SIZEOF_GREGS)
|
||||
return &m68kbsd_gregset;
|
||||
|
||||
if (strcmp (sect_name, ".reg2") == 0 && sect_size >= M68KBSD_SIZEOF_FPREGS)
|
||||
return &m68kbsd_fpregset;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
/* Support for shared libraries. */
|
||||
|
||||
/* Return non-zero if we are in a shared library trampoline code stub. */
|
||||
|
||||
int
|
||||
m68kbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
|
||||
{
|
||||
return (name && !strcmp (name, "_DYNAMIC"));
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
m68kbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||||
{
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
|
||||
tdep->jb_pc = 5;
|
||||
tdep->jb_elt_size = 4;
|
||||
|
||||
set_gdbarch_regset_from_core_section
|
||||
(gdbarch, m68kbsd_regset_from_core_section);
|
||||
}
|
||||
|
||||
/* OpenBSD and NetBSD a.out. */
|
||||
|
||||
static void
|
||||
m68kbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||||
{
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
|
||||
m68kbsd_init_abi (info, gdbarch);
|
||||
|
||||
tdep->struct_return = reg_struct_return;
|
||||
|
||||
/* Assume SunOS-style shared libraries. */
|
||||
set_gdbarch_in_solib_call_trampoline
|
||||
(gdbarch, m68kbsd_aout_in_solib_call_trampoline);
|
||||
}
|
||||
|
||||
/* NetBSD ELF. */
|
||||
|
||||
static void
|
||||
m68kbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||||
{
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
|
||||
m68kbsd_init_abi (info, gdbarch);
|
||||
|
||||
tdep->struct_return = pcc_struct_return;
|
||||
|
||||
/* NetBSD ELF uses SVR4-style shared libraries. */
|
||||
set_gdbarch_in_solib_call_trampoline
|
||||
(gdbarch, generic_in_solib_call_trampoline);
|
||||
set_solib_svr4_fetch_link_map_offsets
|
||||
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
|
||||
}
|
||||
|
||||
|
||||
static enum gdb_osabi
|
||||
m68kbsd_aout_osabi_sniffer (bfd *abfd)
|
||||
{
|
||||
if (strcmp (bfd_get_target (abfd), "a.out-m68k-netbsd") == 0
|
||||
|| strcmp (bfd_get_target (abfd), "a.out-m68k4k-netbsd") == 0)
|
||||
return GDB_OSABI_NETBSD_AOUT;
|
||||
|
||||
return GDB_OSABI_UNKNOWN;
|
||||
}
|
||||
|
||||
static enum gdb_osabi
|
||||
m68kbsd_core_osabi_sniffer (bfd *abfd)
|
||||
{
|
||||
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
|
||||
return GDB_OSABI_NETBSD_AOUT;
|
||||
|
||||
return GDB_OSABI_UNKNOWN;
|
||||
}
|
||||
|
||||
|
||||
/* Provide a prototype to silence -Wmissing-prototypes. */
|
||||
void _initialize_m68kbsd_tdep (void);
|
||||
|
||||
void
|
||||
_initialize_m68kbsd_tdep (void)
|
||||
{
|
||||
gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_aout_flavour,
|
||||
m68kbsd_aout_osabi_sniffer);
|
||||
|
||||
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
|
||||
gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_unknown_flavour,
|
||||
m68kbsd_core_osabi_sniffer);
|
||||
|
||||
gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_AOUT,
|
||||
m68kbsd_aout_init_abi);
|
||||
gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_ELF,
|
||||
m68kbsd_elf_init_abi);
|
||||
}
|
||||
Loading…
Reference in New Issue