This commit was manufactured by cvs2svn to create branch 'drow-cplus-

branch'.

Cherrypick from master 2002-10-25 15:43:03 UTC Hans-Peter Nilsson <hp@axis.com> '	* simple.c: Correct placement of ATTRIBUTE_UNUSED.':
    bfd/elf32-qnx.c
    bfd/simple.c
    gdb/config/i386/obsd.mt
    gdb/i386obsd-tdep.c
    gdb/testsuite/gdb.asm/mips.inc

3 files changed, 189 insertions, 0 deletions

diff --git a/gdb/config/i386/obsd.mt b/gdb/config/i386/obsd.mt
new file mode 100644
index 0000000..72ec513
--- /dev/null
+++ b/gdb/config/i386/obsd.mt
@@ -0,0 +1,3 @@
+# Target: Intel 386 running OpenBSD
+TDEPFILES= i386-tdep.o i387-tdep.o i386bsd-tdep.o i386obsd-tdep.o corelow.o
+TM_FILE= tm-i386.h
diff --git a/gdb/i386obsd-tdep.c b/gdb/i386obsd-tdep.c
new file mode 100644
index 0000000..7f16237
--- /dev/null
+++ b/gdb/i386obsd-tdep.c
@@ -0,0 +1,122 @@
+/* Target-dependent code for OpenBSD/i386.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002
+   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 "gdbcore.h"
+#include "regcache.h"
+
+#include "i386-tdep.h"
+#include "i387-tdep.h"
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_i386obsd_tdep (void);
+
+#define SIZEOF_STRUCT_REG	(16 * 4)
+
+static void
+i386obsd_supply_reg (char *regs, int regno)
+{
+  int i;
+
+  for (i = 0; i <= 15; i++)
+    if (regno == i || regno == -1)
+      supply_register (i, regs + i * 4);
+}
+
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
+                      CORE_ADDR ignore)
+{
+  char *regs, *fsave;
+
+  /* We get everything from one section.  */
+  if (which != 0)
+    return;
+
+  if (core_reg_size < (SIZEOF_STRUCT_REG + 108))
+    {
+      warning ("Wrong size register set in core file.");
+      return;
+    }
+
+  regs = core_reg_sect;
+  fsave = core_reg_sect + SIZEOF_STRUCT_REG;
+
+  /* Integer registers.  */
+  i386obsd_supply_reg (regs, -1);
+
+  /* Floating point registers.  */
+  i387_supply_fsave (fsave);
+}
+
+static struct core_fns i386obsd_core_fns =
+{
+  bfd_target_unknown_flavour,		/* core_flavour */
+  default_check_format,			/* check_format */
+  default_core_sniffer,			/* core_sniffer */
+  fetch_core_registers,			/* core_read_registers */
+  NULL					/* next */
+};
+
+
+CORE_ADDR i386obsd_sigtramp_start = 0xbfbfdf20;
+CORE_ADDR i386obsd_sigtramp_end = 0xbfbfdff0;
+
+/* From <machine/signal.h>.  */
+int i386obsd_sc_pc_offset = 44;
+int i386obsd_sc_sp_offset = 56;
+
+static void 
+i386obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  /* Obviously OpenBSD is BSD-based.  */
+  i386bsd_init_abi (info, gdbarch);
+
+  /* OpenBSD uses -freg-struct-return by default.  */
+  tdep->struct_return = reg_struct_return;
+
+  /* OpenBSD uses a different memory layout.  */
+  tdep->sigtramp_start = i386obsd_sigtramp_start;
+  tdep->sigtramp_end = i386obsd_sigtramp_end;
+
+  /* OpenBSD has a `struct sigcontext' that's different from the
+     origional 4.3 BSD.  */
+  tdep->sc_pc_offset = i386obsd_sc_pc_offset;
+  tdep->sc_sp_offset = i386obsd_sc_sp_offset;
+}
+
+void
+_initialize_i386obsd_tdep (void)
+{
+  add_core_fns (&i386obsd_core_fns);
+
+  /* FIXME: kettenis/20021020: Since OpenBSD/i386 binaries are
+     indistingushable from NetBSD/i386 a.out binaries, building a GDB
+     that should support both these targets will probably not work as
+     expected.  */
+#define GDB_OSABI_OPENBSD_AOUT GDB_OSABI_NETBSD_AOUT
+
+  gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_OPENBSD_AOUT,
+			  i386obsd_init_abi);
+}
diff --git a/gdb/testsuite/gdb.asm/mips.inc b/gdb/testsuite/gdb.asm/mips.inc
new file mode 100644
index 0000000..751f73f
--- /dev/null
+++ b/gdb/testsuite/gdb.asm/mips.inc
@@ -0,0 +1,64 @@
+	comment "subroutine declare"
+	.macro gdbasm_declare name
+	.align	2
+	.ent	\name
+	.type	\name,@function
+\name:
+	.endm
+
+	comment "subroutine prologue"
+	.macro gdbasm_enter
+	.frame	$fp, 32, $31
+	.mask	0xd0000000,-4
+	.set	noreorder
+	.cpload	$25
+	.set	reorder
+	subu	$sp, $sp, 32
+	.cprestore 16
+	sw	$31, 28($sp)
+	sw	$fp, 24($sp)
+	sw	$28, 20($sp)
+	move	$fp, $sp
+	.endm
+
+	comment "subroutine epilogue"
+	.macro gdbasm_leave
+	lw	$31, 28($sp)
+	lw	$fp, 24($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addu	$sp, $sp, 32
+	.set	macro
+	.set	reorder
+	.endm
+
+	comment "subroutine end"
+	.macro gdbasm_end name
+	.end	\name
+	.endm
+
+	.macro gdbasm_call subr
+	la	$25, \subr
+	jal	$31, $25
+	.endm
+
+	.macro gdbasm_several_nops
+	nop
+	nop
+	nop
+	nop
+	.endm
+
+	comment "exit (0)"
+	.macro gdbasm_exit0
+	comment "Don't know how to exit, but this will certainly halt..."
+	lw 	$2, 0($0)
+	.endm
+
+	comment "crt0 startup"
+	.macro gdbasm_startup
+	.global __start
+__start:
+	move	$fp, $sp
+	.endm