gdb:

2008-11-27  Tristan Gingold  <gingold@adacore.com>

	* NEWS: Add entry for new native configuration: Darwin.
	* configure.host: Add Darwin host.
	* configure.tgt: Add Darwin target.
	* defs.h (enum gdb_osabi): Add GDB_OSABI_DARWIN.
	* osabi.c (gdb_osabi_names): Add name for Darwin abi.
	* i386-darwin-nat.c: New file.
	* i386-darwin-tdep.c: New file.
	* machoread.c: New file.
	* darwin-nat-info.c: New file.
	* darwin-nat.c: New file.
	* darwin-nat.h: New file.
	* darwin.defs: New file.
	* config/i386/darwin.mh: New file.

gdb/doc:
2008-11-27  Tristan Gingold  <gingold@adacore.com>

	* gdb.texinfo (Darwin): Document Darwin specific features.

1 files changed, 159 insertions, 0 deletions

diff --git a/gdb/i386-darwin-tdep.c b/gdb/i386-darwin-tdep.c
new file mode 100644
index 00000000000..522fe636be5
--- /dev/null
+++ b/gdb/i386-darwin-tdep.c
@@ -0,0 +1,159 @@
+/* Darwin support for GDB, the GNU debugger.
+   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2008
+   Free Software Foundation, Inc.
+
+   Contributed by Apple Computer, 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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "floatformat.h"
+#include "symtab.h"
+#include "regcache.h"
+#include "libbfd.h"
+#include "objfiles.h"
+
+#include "i387-tdep.h"
+#include "i386-tdep.h"
+#include "amd64-tdep.h"
+#include "osabi.h"
+#include "ui-out.h"
+#include "symtab.h"
+#include "frame.h"
+#include "gdb_assert.h"
+#include "i386-darwin-tdep.h"
+
+/* Offsets into the struct i386_thread_state where we'll find the saved regs.
+   From <mach/i386/thread_status.h> and i386-tdep.h.  */
+int i386_darwin_thread_state_reg_offset[] =
+{
+   0 * 4,   /* EAX */
+   2 * 4,   /* ECX */
+   3 * 4,   /* EDX */
+   1 * 4,   /* EBX */
+   7 * 4,   /* ESP */
+   6 * 4,   /* EBP */
+   5 * 4,   /* ESI */
+   4 * 4,   /* EDI */
+  10 * 4,   /* EIP */
+   9 * 4,   /* EFLAGS */
+  11 * 4,   /* CS */
+   8,       /* SS */
+  12 * 4,   /* DS */
+  13 * 4,   /* ES */
+  14 * 4,   /* FS */
+  15 * 4    /* GS */
+};
+
+const int i386_darwin_thread_state_num_regs = 
+  ARRAY_SIZE (i386_darwin_thread_state_reg_offset);
+
+/* Offsets into the struct x86_thread_state64 where we'll find the saved regs.
+   From <mach/i386/thread_status.h> and amd64-tdep.h.  */
+int amd64_darwin_thread_state_reg_offset[] =
+{
+  0 * 8,			/* %rax */
+  1 * 8,			/* %rbx */
+  2 * 8,			/* %rcx */
+  3 * 8,			/* %rdx */
+  5 * 8,			/* %rsi */
+  4 * 8,			/* %rdi */
+  6 * 8,			/* %rbp */
+  7 * 8,			/* %rsp */
+  8 * 8,			/* %r8 ... */
+  9 * 8,
+  10 * 8,
+  11 * 8,
+  12 * 8,
+  13 * 8,
+  14 * 8,
+  15 * 8,			/* ... %r15 */
+  16 * 8,			/* %rip */
+  17 * 8,			/* %rflags */
+  18 * 8,			/* %cs */
+  -1,				/* %ss */
+  -1,				/* %ds */
+  -1,				/* %es */
+  19 * 8,			/* %fs */
+  20 * 8			/* %gs */
+};
+
+const int amd64_darwin_thread_state_num_regs = 
+  ARRAY_SIZE (amd64_darwin_thread_state_reg_offset);
+
+static void
+i386_darwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  /* We support the SSE registers.  */
+  tdep->num_xmm_regs = I386_NUM_XREGS - 1;
+  set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS);
+
+  tdep->struct_return = reg_struct_return;
+
+  tdep->sigcontext_addr = NULL;
+  tdep->sc_reg_offset = i386_darwin_thread_state_reg_offset;
+  tdep->sc_num_regs = 16;
+
+  tdep->jb_pc_offset = 20;
+}
+
+static void
+x86_darwin_init_abi_64 (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  amd64_init_abi (info, gdbarch);
+
+  tdep->struct_return = reg_struct_return;
+
+  /* We don't do signals yet.  */
+  tdep->sigcontext_addr = NULL;
+  tdep->sc_reg_offset = amd64_darwin_thread_state_reg_offset;
+  tdep->sc_num_regs = ARRAY_SIZE (amd64_darwin_thread_state_reg_offset);
+
+  tdep->jb_pc_offset = 148;
+}
+
+static enum gdb_osabi
+i386_mach_o_osabi_sniffer (bfd *abfd)
+{
+  if (!bfd_check_format (abfd, bfd_object))
+    return GDB_OSABI_UNKNOWN;
+  
+  if (bfd_get_arch (abfd) == bfd_arch_i386)
+    return GDB_OSABI_DARWIN;
+
+  return GDB_OSABI_UNKNOWN;
+}
+
+void
+_initialize_i386_darwin_tdep (void)
+{
+  gdbarch_register_osabi_sniffer (bfd_arch_unknown, bfd_target_mach_o_flavour,
+                                  i386_mach_o_osabi_sniffer);
+
+  gdbarch_register_osabi (bfd_arch_i386, bfd_mach_i386_i386,
+			  GDB_OSABI_DARWIN, i386_darwin_init_abi);
+
+  gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
+                          GDB_OSABI_DARWIN, x86_darwin_init_abi_64);
+}