Re: [PATCH/RFA] OpenBSD/powerpc support

Mark Kettenis
2004-04-23T08:01:56Z

Date: Tue, 20 Apr 2004 15:37:13 -0700
From: Kevin Buettner <kevinb@redhat.com>

> For now I've added these functions to ppcobsd-tdep.c (and the
> definition of `struct pcc_reg_offsets' to ppcobsd-tdep.h. But they
> should probably be moved to rs6000-tdep.c (and ppc-tdep.h).

I'm willing for these functions to be added to rs6000-tdep.c and ppc-tdep.h
at the outset. (Consider such a patch to be preapproved.)

The attached is what I actually checked in.

Cheers,

Mark

Index: ChangeLog
from Mark Kettenis <kettenis@gnu.org>

Add OpenBSD/powerpc support.
* NEWS (New native configurations): Mention OpenBSD/powerpc.
* ppc-tdep.h (struct ppc_reg_offsets): New structure.
(ppc_supply_gregset, ppc_supply_fpregset, ppc_collect_gregset)
(ppc_collect_fpregset): New prototypes.
* ppcobsd-nat.c: New file.
* ppcobsd-tdep.c: New file.
* ppcobsd-tdep.h: New file.
* rs6000-tdep.c: Include "regset.h".
(ppc_supply_reg, ppc_collect_reg, ppc_supply_gregset)
(ppc_supply_fpregset, ppc_collect_gregset, ppc_collect_fpregset):
New functions.
* Makefile.in (ALLDEPFILES): Add pccobsd-nat.c and ppcobsd-tdep.c.
(ppcobsd-nat.o, ppcobsd-tdep.o): New dependencies.
(rs6000-tdep.o): Update dependencies.
* configure.host: Add powerpc-*-openbsd.
* configure.tgt: Add powerpc-*-openbsd.
* config/powerpc/obsd.mh: New file.
* config/powerpc/nm-obsd.h: New file.
* config/powerpc/obsd.mt: New file.

Index: NEWS
===================================================================
RCS file: /cvs/src/src/gdb/NEWS,v
retrieving revision 1.143
diff -u -p -r1.143 NEWS
--- NEWS 15 Apr 2004 15:10:01 -0000 1.143
+++ NEWS 22 Apr 2004 21:10:38 -0000
@@ -5,6 +5,7 @@

* New native configurations

+OpenBSD/powerpc powerpc-*-openbsd*
NetBSD/vax vax-*-netbsd*
OpenBSD/vax vax-*-openbsd*

Index: rs6000-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/rs6000-tdep.c,v
retrieving revision 1.192
diff -u -p -r1.192 rs6000-tdep.c
--- rs6000-tdep.c 21 Apr 2004 16:38:07 -0000 1.192
+++ rs6000-tdep.c 22 Apr 2004 21:10:38 -0000
@@ -31,6 +31,7 @@
#include "objfiles.h"
#include "arch-utils.h"
#include "regcache.h"
+#include "regset.h"
#include "doublest.h"
#include "value.h"
#include "parser-defs.h"
@@ -150,6 +151,166 @@ ppc_floating_point_unit_p (struct gdbarc
return 1;
return 0;
}
+\f
+
+/* Register set support functions. */
+
+static void
+ppc_supply_reg (struct regcache *regcache, int regnum,
+ const char *regs, size_t offset)
+{
+ if (regnum != -1 && offset != -1)
+ regcache_raw_supply (regcache, regnum, regs + offset);
+}
+
+static void
+ppc_collect_reg (const struct regcache *regcache, int regnum,
+ char *regs, size_t offset)
+{
+ if (regnum != -1 && offset != -1)
+ regcache_raw_collect (regcache, regnum, regs + offset);
+}
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+ from the buffer specified by GREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+void
+ppc_supply_gregset (const struct regset *regset, struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct ppc_reg_offsets *offsets = regset->descr;
+ size_t offset;
+ int i;
+
+ for (i = 0, offset = offsets->r0_offset; i < 32; i++, offset += 4)
+ {
+ if (regnum == -1 || regnum == i)
+ ppc_supply_reg (regcache, i, gregs, offset);
+ }
+
+ if (regnum == -1 || regnum == PC_REGNUM)
+ ppc_supply_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
+ if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_ps_regnum,
+ gregs, offsets->ps_offset);
+ if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_cr_regnum,
+ gregs, offsets->cr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_lr_regnum,
+ gregs, offsets->lr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_ctr_regnum,
+ gregs, offsets->ctr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_xer_regnum,
+ gregs, offsets->cr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_mq_regnum, gregs, offsets->mq_offset);
+}
+
+/* Supply register REGNUM in the floating-point register set REGSET
+ from the buffer specified by FPREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+void
+ppc_supply_fpregset (const struct regset *regset, struct regcache *regcache,
+ int regnum, const void *fpregs, size_t len)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct ppc_reg_offsets *offsets = regset->descr;
+ size_t offset;
+ int i;
+
+ offset = offsets->f0_offset;
+ for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++, offset += 4)
+ {
+ if (regnum == -1 || regnum == i)
+ ppc_supply_reg (regcache, i, fpregs, offset);
+ }
+
+ if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
+ ppc_supply_reg (regcache, tdep->ppc_fpscr_regnum,
+ fpregs, offsets->fpscr_offset);
+}
+
+/* Collect register REGNUM in the general-purpose register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ GREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+void
+ppc_collect_gregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct ppc_reg_offsets *offsets = regset->descr;
+ size_t offset;
+ int i;
+
+ offset = offsets->r0_offset;
+ for (i = 0; i <= 32; i++, offset += 4)
+ {
+ if (regnum == -1 || regnum == i)
+ ppc_collect_reg (regcache, regnum, gregs, offset);
+ }
+
+ if (regnum == -1 || regnum == PC_REGNUM)
+ ppc_collect_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
+ if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_ps_regnum,
+ gregs, offsets->ps_offset);
+ if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_cr_regnum,
+ gregs, offsets->cr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_lr_regnum,
+ gregs, offsets->lr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_ctr_regnum,
+ gregs, offsets->ctr_offset);
+ if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_xer_regnum,
+ gregs, offsets->xer_offset);
+ if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_mq_regnum,
+ gregs, offsets->mq_offset);
+}
+
+/* Collect register REGNUM in the floating-point register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ FPREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+void
+ppc_collect_fpregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *fpregs, size_t len)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct ppc_reg_offsets *offsets = regset->descr;
+ size_t offset;
+ int i;
+
+ offset = offsets->f0_offset;
+ for (i = FP0_REGNUM; i <= FP0_REGNUM + 32; i++, offset += 4)
+ {
+ if (regnum == -1 || regnum == i)
+ ppc_collect_reg (regcache, regnum, fpregs, offset);
+ }
+
+ if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
+ ppc_collect_reg (regcache, tdep->ppc_fpscr_regnum,
+ fpregs, offsets->fpscr_offset);
+}
+\f

/* Read a LEN-byte address from debugged memory address MEMADDR. */

Index: ppc-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/ppc-tdep.h,v
retrieving revision 1.27
diff -u -p -r1.27 ppc-tdep.h
--- ppc-tdep.h 20 Mar 2004 04:58:12 -0000 1.27
+++ ppc-tdep.h 22 Apr 2004 21:10:38 -0000
@@ -74,10 +74,67 @@ enum return_value_convention ppc64_sysv_
/* From rs6000-tdep.c... */
int altivec_register_p (int regno);

-
/* Return non-zero when the architecture has an FPU (or at least when
the ABI is using the FPU). */
int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
+
+/* Register set description. */
+
+struct ppc_reg_offsets
+{
+ /* General-purpose registers. */
+ int r0_offset;
+ int pc_offset;
+ int ps_offset;
+ int cr_offset;
+ int lr_offset;
+ int ctr_offset;
+ int xer_offset;
+ int mq_offset;
+
+ /* Floating-point registers. */
+ int f0_offset;
+ int fpscr_offset;
+
+ /* AltiVec registers. */
+ int vr0_offset;
+ int vscr_offset;
+ int vrsave_offset;
+};
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+ from the buffer specified by GREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppc_supply_gregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len);
+
+/* Supply register REGNUM in the floating-point register set REGSET
+ from the buffer specified by FPREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppc_supply_fpregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *fpregs, size_t len);
+
+/* Collect register REGNUM in the general-purpose register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ GREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppc_collect_gregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len);
+
+/* Collect register REGNUM in the floating-point register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ FPREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppc_collect_fpregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *fpregs, size_t len);

/* Private data that this module attaches to struct gdbarch. */

Index: ppcobsd-nat.c
===================================================================
RCS file: ppcobsd-nat.c
diff -N ppcobsd-nat.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ ppcobsd-nat.c 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,97 @@
+/* Native-dependent code for OpenBSD/powerpc.
+
+ 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"
+#include "inferior.h"
+#include "regcache.h"
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "ppcobsd-tdep.h"
+
+/* OpenBSD/powerpc doesn't have PT_GETFPREGS/PT_SETFPREGS like
+ NetBSD/powerpc and FreeBSD/powerpc. */
+
+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
+ for all registers. */
+
+void
+fetch_inferior_registers (int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcobsd_supply_gregset (&ppcobsd_gregset, current_regcache, -1,
+ &regs, sizeof regs);
+}
+
+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
+ this for all registers. */
+
+void
+store_inferior_registers (int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcobsd_collect_gregset (&ppcobsd_gregset, current_regcache,
+ regnum, &regs, sizeof regs);
+
+ if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't write registers");
+}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_ppcobsd_nat (void);
+
+void
+_initialize_ppcobsd_nat (void)
+{
+ /* General-purpose registers. */
+ ppcobsd_reg_offsets.r0_offset = offsetof (struct reg, gpr);
+ ppcobsd_reg_offsets.pc_offset = offsetof (struct reg, pc);
+ ppcobsd_reg_offsets.ps_offset = offsetof (struct reg, ps);
+ ppcobsd_reg_offsets.cr_offset = offsetof (struct reg, cnd);
+ ppcobsd_reg_offsets.lr_offset = offsetof (struct reg, lr);
+ ppcobsd_reg_offsets.ctr_offset = offsetof (struct reg, cnt);
+ ppcobsd_reg_offsets.xer_offset = offsetof (struct reg, xer);
+ ppcobsd_reg_offsets.mq_offset = offsetof (struct reg, mq);
+
+ /* Floating-point registers. */
+ ppcobsd_reg_offsets.f0_offset = offsetof (struct reg, fpr);
+ ppcobsd_reg_offsets.fpscr_offset = -1;
+
+ /* AltiVec registers. */
+ ppcobsd_reg_offsets.vr0_offset = offsetof (struct vreg, vreg);
+ ppcobsd_reg_offsets.vscr_offset = offsetof (struct vreg, vscr);
+ ppcobsd_reg_offsets.vrsave_offset = offsetof (struct vreg, vrsave);
+}
Index: ppcobsd-tdep.c
===================================================================
RCS file: ppcobsd-tdep.c
diff -N ppcobsd-tdep.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ ppcobsd-tdep.c 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,153 @@
+/* Target-dependent code for OpenBSD/powerpc.
+
+ 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"
+#include "arch-utils.h"
+#include "osabi.h"
+#include "regcache.h"
+#include "regset.h"
+
+#include "gdb_string.h"
+
+#include "ppc-tdep.h"
+#include "ppcobsd-tdep.h"
+#include "solib-svr4.h"
+
+/* Register offsets from <machine/reg.h>. */
+struct ppc_reg_offsets ppcobsd_reg_offsets;
+\f
+
+/* Core file support. */
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+ from the buffer specified by GREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+void
+ppcobsd_supply_gregset (const struct regset *regset,
+ struct regcache *regcache, int regnum,
+ const void *gregs, size_t len)
+{
+ ppc_supply_gregset (regset, regcache, regnum, gregs, len);
+ ppc_supply_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* Collect register REGNUM in the general-purpose register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ GREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+void
+ppcobsd_collect_gregset (const struct regset *regset,
+ const struct regcache *regcache, int regnum,
+ void *gregs, size_t len)
+{
+ ppc_collect_gregset (regset, regcache, regnum, gregs, len);
+ ppc_collect_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* OpenBS/powerpc register set. */
+
+struct regset ppcobsd_gregset =
+{
+ &ppcobsd_reg_offsets,
+ ppcobsd_supply_gregset
+};
+
+/* Return the appropriate register set for the core section identified
+ by SECT_NAME and SECT_SIZE. */
+
+static const struct regset *
+ppcobsd_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
+{
+ if (strcmp (sect_name, ".reg") == 0 && sect_size >= 412)
+ return &ppcobsd_gregset;
+
+ return NULL;
+}
+\f
+
+static void
+ppcobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ /* OpenBSD 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);
+
+ set_gdbarch_regset_from_core_section
+ (gdbarch, ppcobsd_regset_from_core_section);
+}
+\f
+
+/* OpenBSD uses uses the traditional NetBSD core file format, even for
+ ports that use ELF. */
+#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
+
+static enum gdb_osabi
+ppcobsd_core_osabi_sniffer (bfd *abfd)
+{
+ if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
+ return GDB_OSABI_NETBSD_CORE;
+
+ return GDB_OSABI_UNKNOWN;
+}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_ppcobsd_tdep (void);
+
+void
+_initialize_ppcobsd_tdep (void)
+{
+ /* BFD doesn't set a flavour for NetBSD style a.out core files. */
+ gdbarch_register_osabi_sniffer (bfd_arch_powerpc, bfd_target_unknown_flavour,
+ ppcobsd_core_osabi_sniffer);
+
+ gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_OPENBSD_ELF,
+ ppcobsd_init_abi);
+
+ /* Avoid initializing the register offsets again if they were
+ already initailized by ppcobsd-nat.c. */
+ if (ppcobsd_reg_offsets.pc_offset == 0)
+ {
+ /* General-purpose registers. */
+ ppcobsd_reg_offsets.r0_offset = 0;
+ ppcobsd_reg_offsets.pc_offset = 384;
+ ppcobsd_reg_offsets.ps_offset = 388;
+ ppcobsd_reg_offsets.cr_offset = 392;
+ ppcobsd_reg_offsets.lr_offset = 396;
+ ppcobsd_reg_offsets.ctr_offset = 400;
+ ppcobsd_reg_offsets.xer_offset = 404;
+ ppcobsd_reg_offsets.mq_offset = 408;
+
+ /* Floating-point registers. */
+ ppcobsd_reg_offsets.f0_offset = 128;
+ ppcobsd_reg_offsets.fpscr_offset = -1;
+
+ /* AltiVec registers. */
+ ppcobsd_reg_offsets.vr0_offset = 0;
+ ppcobsd_reg_offsets.vscr_offset = 512;
+ ppcobsd_reg_offsets.vrsave_offset = 520;
+ }
+}
Index: ppcobsd-tdep.h
===================================================================
RCS file: ppcobsd-tdep.h
diff -N ppcobsd-tdep.h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ ppcobsd-tdep.h 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,54 @@
+/* Target-dependent code for OpenBSD/powerpc.
+
+ 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. */
+
+#ifndef PPCOBSD_TDEP_H
+#define PPCOBSD_TDEP_H
+
+#include <stddef.h>
+
+struct regset;
+struct regcache;
+
+/* Register offsets for OpenBSD/powerpc. */
+extern struct ppc_reg_offsets ppcobsd_reg_offsets;
+
+/* Register sets for OpenBSD/powerpc. */
+extern struct regset ppcobsd_gregset;
+\f
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+ from the buffer specified by GREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppcobsd_supply_gregset (const struct regset *regset,
+ struct regcache *regcache, int regnum,
+ const void *gregs, size_t len);
+
+/* Collect register REGNUM in the general-purpose register set
+ REGSET. from register cache REGCACHE into the buffer specified by
+ GREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppcobsd_collect_gregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len);
+
+#endif /* ppcobsd-tdep.h */
Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.547
diff -u -p -r1.547 Makefile.in
--- Makefile.in 21 Apr 2004 23:27:02 -0000 1.547
+++ Makefile.in 22 Apr 2004 21:10:39 -0000
@@ -1352,6 +1352,7 @@ ALLDEPFILES = \
somread.c somsolib.c $(HPREAD_SOURCE) \
ppc-sysv-tdep.c ppc-linux-nat.c ppc-linux-tdep.c \
ppcnbsd-nat.c ppcnbsd-tdep.c \
+ ppcobsd-nat.c ppcobsd-tdep.c \
procfs.c \
remote-e7000.c \
remote-hms.c remote-m32r-sdi.c remote-mips.c \
@@ -2157,6 +2158,11 @@ ppcnbsd-nat.o: ppcnbsd-nat.c $(defs_h) $
ppcnbsd-tdep.o: ppcnbsd-tdep.c $(defs_h) $(gdbcore_h) $(regcache_h) \
$(target_h) $(breakpoint_h) $(value_h) $(osabi_h) $(ppc_tdep_h) \
$(ppcnbsd_tdep_h) $(nbsd_tdep_h) $(solib_svr4_h)
+ppcobsd-nat.o: ppcobsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
+ $(ppcobsd_tdep_h)
+ppcobsd-tdep.o: ppcobsd-tdep.c $(defs_h) $(arch_utils_h) $(osabi_h) \
+ $(regcache_h) $(regset_h) $(gdb_string_h) $(ppc_tdep_h) \
+ $(ppcobsd_tdep_h) $(solib_svr4_h)
ppc-sysv-tdep.o: ppc-sysv-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h) \
$(regcache_h) $(value_h) $(gdb_string_h) $(gdb_assert_h) \
$(ppc_tdep_h) $(target_h) $(objfiles_h)
@@ -2254,11 +2260,11 @@ rs6000-nat.o: rs6000-nat.c $(defs_h) $(i
$(ppc_tdep_h) $(exec_h) $(gdb_stat_h)
rs6000-tdep.o: rs6000-tdep.c $(defs_h) $(frame_h) $(inferior_h) $(symtab_h) \
$(target_h) $(gdbcore_h) $(gdbcmd_h) $(objfiles_h) $(arch_utils_h) \
- $(regcache_h) $(doublest_h) $(value_h) $(parser_defs_h) $(osabi_h) \
- $(libbfd_h) $(coff_internal_h) $(libcoff_h) $(coff_xcoff_h) \
- $(libxcoff_h) $(elf_bfd_h) $(solib_svr4_h) $(ppc_tdep_h) \
- $(gdb_assert_h) $(dis_asm_h) $(trad_frame_h) $(frame_unwind_h) \
- $(frame_base_h)
+ $(regcache_h) $(regset_g) $(doublest_h) $(value_h) $(parser_defs_h) \
+ $(osabi_h) $(libbfd_h) $(coff_internal_h) $(libcoff_h) \
+ $(coff_xcoff_h) $(libxcoff_h) $(elf_bfd_h) $(solib_svr4_h) \
+ $(ppc_tdep_h) $(gdb_assert_h) $(dis_asm_h) $(trad_frame_h) \
+ $(frame_unwind_h) $(frame_base_h)
s390-nat.o: s390-nat.c $(defs_h) $(tm_h) $(regcache_h) $(inferior_h) \
$(s390_tdep_h)
s390-tdep.o: s390-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) $(inferior_h) \
Index: configure.host
===================================================================
RCS file: /cvs/src/src/gdb/configure.host,v
retrieving revision 1.74
diff -u -p -r1.74 configure.host
--- configure.host 15 Apr 2004 15:10:01 -0000 1.74
+++ configure.host 22 Apr 2004 21:10:39 -0000
@@ -98,6 +98,7 @@ powerpc-*-aix4.3.[0-1]*) gdb_host=aix ;;
powerpc-*-aix*) gdb_host=aix432 ;;
powerpc-*-linux*) gdb_host=linux ;;
powerpc-*-netbsd*) gdb_host=nbsd ;;
+powerpc-*-openbsd*) gdb_host=obsd ;;

powerpc64-*-linux*) gdb_host=ppc64-linux ;;

Index: configure.tgt
===================================================================
RCS file: /cvs/src/src/gdb/configure.tgt,v
retrieving revision 1.138
diff -u -p -r1.138 configure.tgt
--- configure.tgt 14 Apr 2004 18:02:44 -0000 1.138
+++ configure.tgt 22 Apr 2004 21:10:39 -0000
@@ -134,6 +134,7 @@ mn10300-*-*) gdb_target=mn10300 ;;
ns32k-*-netbsd*) gdb_target=nbsdaout ;;

powerpc-*-netbsd*) gdb_target=nbsd ;;
+powerpc-*-openbsd*) gdb_target=obsd ;;
powerpc-*-aix*) gdb_target=aix ;;
powerpc-*-linux*) gdb_target=linux
build_gdbserver=yes
Index: config/powerpc/nm-obsd.h
===================================================================
RCS file: config/powerpc/nm-obsd.h
diff -N config/powerpc/nm-obsd.h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ config/powerpc/nm-obsd.h 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,28 @@
+/* Native-dependent definitions for OpenBSD/powerpc.
+
+ 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. */
+
+#ifndef NM_OBSD_H
+#define NM_OBSD_H
+
+/* Get generic BSD native definitions. */
+#include "config/nm-bsd.h"
+
+#endif /* nm-obsd.h */
Index: config/powerpc/obsd.mh
===================================================================
RCS file: config/powerpc/obsd.mh
diff -N config/powerpc/obsd.mh
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ config/powerpc/obsd.mh 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,3 @@
+# Host: OpenBSD/powerpc
+NATDEPFILES= ppcobsd-nat.o fork-child.o infptrace.o inftarg.o
+NAT_FILE= nm-obsd.h
Index: config/powerpc/obsd.mt
===================================================================
RCS file: config/powerpc/obsd.mt
diff -N config/powerpc/obsd.mt
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ config/powerpc/obsd.mt 22 Apr 2004 21:10:39 -0000
@@ -0,0 +1,4 @@
+# Target: OpenBSD/powerpc
+TDEPFILES= rs6000-tdep.o ppc-sysv-tdep.o ppcobsd-tdep.o \
+ corelow.o solib.o solib-svr4.o
+TM_FILE= tm-nbsd.h