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authorMark Kettenis <kettenis@cvs.openbsd.org>2004-05-21 19:18:40 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2004-05-21 19:18:40 +0000
commit6a565344557d0acb4bd34cc9a0bf698662f9006b (patch)
tree5c120526742e6dbb98c8c3d2857c18f7de16143a /gnu/usr.bin/binutils/gdb/alpha-tdep.h
parenta0769fe1e18fcff10de0bca7c087aacab3cda1cb (diff)
GDB 6.1 (excluding .info files)
Diffstat (limited to 'gnu/usr.bin/binutils/gdb/alpha-tdep.h')
-rw-r--r--gnu/usr.bin/binutils/gdb/alpha-tdep.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/gnu/usr.bin/binutils/gdb/alpha-tdep.h b/gnu/usr.bin/binutils/gdb/alpha-tdep.h
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+/* Common target dependent code for GDB on Alpha systems.
+ Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2002, 2003 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;
+ DEPRECATED_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 67
+
+/* Total amount of space needed to store our copies of the machine's
+ register state. */
+#define ALPHA_REGISTER_BYTES (ALPHA_NUM_REGS * 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. */
+
+#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_RA_REGNUM 26 /* Contains return address value */
+#define ALPHA_T12_REGNUM 27 /* Contains start addr of current proc */
+#define ALPHA_GP_REGNUM 29 /* Contains the global pointer */
+#define ALPHA_SP_REGNUM 30 /* Contains address of top of stack */
+#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_UNIQUE_REGNUM 66 /* PAL_rduniq value */
+
+/* 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
+
+/* Target-dependent structure in gdbarch. */
+struct gdbarch_tdep
+{
+ CORE_ADDR vm_min_address; /* Used by alpha_heuristic_proc_start. */
+
+ /* If PC is inside a dynamically-generated signal trampoline function
+ (i.e. one copied onto the user stack at run-time), return how many
+ bytes PC is beyond the start of that function. Otherwise, return -1. */
+ LONGEST (*dynamic_sigtramp_offset) (CORE_ADDR);
+
+ /* Translate a signal handler stack base address into the address of
+ the sigcontext structure for that signal handler. */
+ CORE_ADDR (*sigcontext_addr) (struct frame_info *);
+
+ /* Offset of registers in `struct sigcontext'. */
+ int sc_pc_offset;
+ int sc_regs_offset;
+ int sc_fpregs_offset;
+
+ int jb_pc; /* Offset to PC value in jump buffer.
+ If htis is negative, longjmp support
+ will be disabled. */
+ size_t jb_elt_size; /* And the size of each entry in the buf. */
+};
+
+extern unsigned int alpha_read_insn (CORE_ADDR pc);
+extern void alpha_software_single_step (enum target_signal, int);
+extern CORE_ADDR alpha_after_prologue (CORE_ADDR pc);
+
+extern void alpha_mdebug_init_abi (struct gdbarch_info, struct gdbarch *);
+extern void alpha_dwarf2_init_abi (struct gdbarch_info, struct gdbarch *);
+
+extern void alpha_supply_int_regs (int, const void *, const void *,
+ const void *);
+extern void alpha_fill_int_regs (int, void *, void *, void *);
+extern void alpha_supply_fp_regs (int, const void *, const void *);
+extern void alpha_fill_fp_regs (int, void *, void *);
+
+#endif /* ALPHA_TDEP_H */