* alpha-tdep.h: New file. Includes several Alpha target constants

taken from...
* config/alpha/tm-alpha.h: ...here.  Remove macros that we now
let gdbarch deal with.
(GDB_MULTI_ARCH): Define as GDB_MULTI_ARCH_PARTIAL.
* Makefile.in (alpha-nat.o): Add alpha-tdep.h and $(BFD_SRC)/elf-bfd
to dependency list.
* alpha-nat.c: Include alpha-tdep.h.  Update for adjusted
Alpha target register names.
* alphabsd-nat.c: Likewise.
* alpha-tdep.c: Include alpha-tdep.h.  Update for adjusted
Alpha target register names.  Make serveral routines static.
(alpha_get_saved_register): New function.
(alpha_abi_names): New.
(process_note_abi_tag_sections): New function.
(get_elfosabi): New function.
(alpha_gdbarch_init): New function.
(alpha_dump_tdep): New function.
(_initialize_alpha_tdep): Register alpha_gdbarch_init.

1 files changed, 99 insertions, 0 deletions

diff --git a/gdb/alpha-tdep.h b/gdb/alpha-tdep.h
new file mode 100644
index 0000000..fe2716e
--- /dev/null
+++ b/gdb/alpha-tdep.h
@@ -0,0 +1,99 @@
+/* Common target dependent code for GDB on Alpha systems.
+   Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 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.  */
+
+#ifndef ALPHA_TDEP_H
+#define ALPHA_TDEP_H
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places;  REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+#define ALPHA_REGISTER_SIZE 8
+
+/* Number of machine registers.  */
+#define ALPHA_NUM_REGS 66
+
+/* Total amount of space needed to store our copies of the machine's
+   register state.  */
+#define ALPHA_REGISTER_BYTES (ALPHA_NUM_REGS * 8)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+#define ALPHA_MAX_REGISTER_RAW_SIZE 8
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+#define ALPHA_MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Register numbers of various important registers.
+   Note that most of these values are "real" register numbers,
+   and correspond to the general registers of the machine,
+   and FP_REGNUM is a "phony" register number which is too large
+   to be an actual register number as far as the user is concerned
+   but serves to get the desired value when passed to read_register.  */
+
+#define ALPHA_V0_REGNUM	     0  /* Function integer return value */
+#define ALPHA_T7_REGNUM	     8  /* Return address register for OSF/1 __add* */
+#define ALPHA_GCC_FP_REGNUM 15  /* Used by gcc as frame register */
+#define ALPHA_A0_REGNUM     16  /* Loc of first arg during a subr call */
+#define ALPHA_T9_REGNUM     23  /* Return address register for OSF/1 __div* */
+#define ALPHA_T12_REGNUM    27  /* Contains start addr of current proc */
+#define ALPHA_SP_REGNUM     30  /* Contains address of top of stack */
+#define ALPHA_RA_REGNUM     26  /* Contains return address value */
+#define ALPHA_ZERO_REGNUM   31  /* Read-only register, always 0 */
+#define ALPHA_FP0_REGNUM    32  /* Floating point register 0 */
+#define ALPHA_FPA0_REGNUM   48  /* First float arg during a subr call */
+#define ALPHA_FPCR_REGNUM   63  /* Floating point control register */
+#define ALPHA_PC_REGNUM     64  /* Contains program counter */
+#define ALPHA_FP_REGNUM     65  /* Virtual frame pointer */
+
+/* The alpha has two different virtual pointers for arguments and locals.
+   
+   The virtual argument pointer is pointing to the bottom of the argument
+   transfer area, which is located immediately below the virtual frame
+   pointer. Its size is fixed for the native compiler, it is either zero
+   (for the no arguments case) or large enough to hold all argument registers.
+   gcc uses a variable sized argument transfer area. As it has
+   to stay compatible with the native debugging tools it has to use the same
+   virtual argument pointer and adjust the argument offsets accordingly.
+   
+   The virtual local pointer is localoff bytes below the virtual frame
+   pointer, the value of localoff is obtained from the PDR.  */
+#define ALPHA_NUM_ARG_REGS   6
+
+/* ABI variants that we know about.  If you add to this enum, please
+   update the table of names in alpha-tdep.c.  */
+enum alpha_abi
+{
+  ALPHA_ABI_UNKNOWN = 0,
+  ALPHA_ABI_OSF1,
+  ALPHA_ABI_LINUX,
+  ALPHA_ABI_FREEBSD,
+  ALPHA_ABI_NETBSD,
+
+  ALPHA_ABI_INVALID	/* Keep this last. */
+};
+
+/* Target-dependent structure in gdbarch.  */
+struct gdbarch_tdep
+{
+  enum alpha_abi alpha_abi;	/* OS/ABI of inferior.  */
+  const char *abi_name;		/* Name of the above.  */
+};
+
+#endif /* ALPHA_TDEP_H */