734 lines
22 KiB
C
734 lines
22 KiB
C
/* Print VAX instructions for GDB, the GNU debugger.
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Copyright 1986, 1989, 1991, 1992, 1995, 1996, 1998, 1999, 2000, 2002
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "symtab.h"
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#include "opcode/vax.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "frame.h"
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#include "value.h"
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#include "arch-utils.h"
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#include "gdb_string.h"
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#include "vax-tdep.h"
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static gdbarch_register_name_ftype vax_register_name;
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static gdbarch_register_byte_ftype vax_register_byte;
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static gdbarch_register_raw_size_ftype vax_register_raw_size;
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static gdbarch_register_virtual_size_ftype vax_register_virtual_size;
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static gdbarch_register_virtual_type_ftype vax_register_virtual_type;
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static gdbarch_skip_prologue_ftype vax_skip_prologue;
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static gdbarch_saved_pc_after_call_ftype vax_saved_pc_after_call;
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static gdbarch_frame_num_args_ftype vax_frame_num_args;
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static gdbarch_frame_chain_ftype vax_frame_chain;
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static gdbarch_frame_saved_pc_ftype vax_frame_saved_pc;
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static gdbarch_frame_args_address_ftype vax_frame_args_address;
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static gdbarch_frame_locals_address_ftype vax_frame_locals_address;
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static gdbarch_frame_init_saved_regs_ftype vax_frame_init_saved_regs;
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static gdbarch_store_struct_return_ftype vax_store_struct_return;
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static gdbarch_deprecated_extract_return_value_ftype vax_extract_return_value;
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static gdbarch_deprecated_extract_struct_value_address_ftype
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vax_extract_struct_value_address;
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static gdbarch_push_dummy_frame_ftype vax_push_dummy_frame;
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static gdbarch_pop_frame_ftype vax_pop_frame;
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static gdbarch_fix_call_dummy_ftype vax_fix_call_dummy;
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/* Return 1 if P points to an invalid floating point value.
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LEN is the length in bytes -- not relevant on the Vax. */
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/* FIXME: cagney/2002-01-19: The macro below was originally defined in
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tm-vax.h and used in values.c. Two problems. Firstly this is a
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very non-portable and secondly it is wrong. The VAX should be
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using floatformat and associated methods to identify and handle
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invalid floating-point values. Adding to the poor target's woes
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there is no floatformat_vax_{f,d} and no TARGET_FLOAT_FORMAT
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et.al.. */
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/* FIXME: cagney/2002-01-19: It turns out that the only thing that
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uses this macro is the vax disassembler code (so how old is this
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target?). This target should instead be using the opcodes
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disassembler. That allowing the macro to be eliminated. */
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#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000)
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/* Vax instructions are never longer than this. */
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#define MAXLEN 62
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/* Number of elements in the opcode table. */
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#define NOPCODES (sizeof votstrs / sizeof votstrs[0])
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static unsigned char *print_insn_arg ();
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static const char *
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vax_register_name (int regno)
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{
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static char *register_names[] =
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{
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "r11", "ap", "fp", "sp", "pc",
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"ps",
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};
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if (regno < 0)
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return (NULL);
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if (regno >= (sizeof(register_names) / sizeof(*register_names)))
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return (NULL);
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return (register_names[regno]);
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}
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static int
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vax_register_byte (int regno)
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{
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return (regno * 4);
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}
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static int
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vax_register_raw_size (int regno)
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{
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return (4);
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}
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static int
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vax_register_virtual_size (int regno)
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{
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return (4);
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}
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static struct type *
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vax_register_virtual_type (int regno)
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{
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return (builtin_type_int);
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}
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static void
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vax_frame_init_saved_regs (struct frame_info *frame)
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{
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int regnum, regmask;
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CORE_ADDR next_addr;
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if (frame->saved_regs)
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return;
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frame_saved_regs_zalloc (frame);
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regmask = read_memory_integer (frame->frame + 4, 4) >> 16;
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next_addr = frame->frame + 16;
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/* regmask's low bit is for register 0, which is the first one
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what would be pushed. */
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for (regnum = 0; regnum < VAX_AP_REGNUM; regnum++)
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{
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if (regmask & (1 << regnum))
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frame->saved_regs[regnum] = next_addr += 4;
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}
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frame->saved_regs[SP_REGNUM] = next_addr + 4;
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if (regmask & (1 << FP_REGNUM))
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frame->saved_regs[SP_REGNUM] +=
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4 + (4 * read_memory_integer (next_addr + 4, 4));
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frame->saved_regs[PC_REGNUM] = frame->frame + 16;
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frame->saved_regs[FP_REGNUM] = frame->frame + 12;
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frame->saved_regs[VAX_AP_REGNUM] = frame->frame + 8;
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frame->saved_regs[PS_REGNUM] = frame->frame + 4;
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}
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/* Get saved user PC for sigtramp from sigcontext for BSD style sigtramp. */
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static CORE_ADDR
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vax_sigtramp_saved_pc (struct frame_info *frame)
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{
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CORE_ADDR sigcontext_addr;
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char *buf;
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int ptrbytes = TYPE_LENGTH (builtin_type_void_func_ptr);
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int sigcontext_offs = (2 * TARGET_INT_BIT) / TARGET_CHAR_BIT;
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buf = alloca (ptrbytes);
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/* Get sigcontext address, it is the third parameter on the stack. */
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if (frame->next)
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sigcontext_addr = read_memory_typed_address
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(FRAME_ARGS_ADDRESS (frame->next) + FRAME_ARGS_SKIP + sigcontext_offs,
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builtin_type_void_data_ptr);
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else
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sigcontext_addr = read_memory_typed_address
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(read_register (SP_REGNUM) + sigcontext_offs, builtin_type_void_data_ptr);
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/* Don't cause a memory_error when accessing sigcontext in case the stack
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layout has changed or the stack is corrupt. */
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target_read_memory (sigcontext_addr + SIGCONTEXT_PC_OFFSET, buf, ptrbytes);
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return extract_typed_address (buf, builtin_type_void_func_ptr);
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}
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static CORE_ADDR
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vax_frame_saved_pc (struct frame_info *frame)
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{
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if ((get_frame_type (frame) == SIGTRAMP_FRAME))
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return (vax_sigtramp_saved_pc (frame)); /* XXXJRT */
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return (read_memory_integer (frame->frame + 16, 4));
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}
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CORE_ADDR
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vax_frame_args_address_correct (struct frame_info *frame)
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{
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/* Cannot find the AP register value directly from the FP value. Must
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find it saved in the frame called by this one, or in the AP register
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for the innermost frame. However, there is no way to tell the
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difference between the innermost frame and a frame for which we
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just don't know the frame that it called (e.g. "info frame 0x7ffec789").
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For the sake of argument, suppose that the stack is somewhat trashed
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(which is one reason that "info frame" exists). So, return 0 (indicating
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we don't know the address of the arglist) if we don't know what frame
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this frame calls. */
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if (frame->next)
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return (read_memory_integer (frame->next->frame + 8, 4));
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return (0);
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}
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static CORE_ADDR
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vax_frame_args_address (struct frame_info *frame)
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{
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/* In most of GDB, getting the args address is too important to
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just say "I don't know". This is sometimes wrong for functions
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that aren't on top of the stack, but c'est la vie. */
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if (frame->next)
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return (read_memory_integer (frame->next->frame + 8, 4));
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return (read_register (VAX_AP_REGNUM));
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}
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static CORE_ADDR
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vax_frame_locals_address (struct frame_info *frame)
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{
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return (frame->frame);
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}
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static int
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vax_frame_num_args (struct frame_info *fi)
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{
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return (0xff & read_memory_integer (FRAME_ARGS_ADDRESS (fi), 1));
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}
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static CORE_ADDR
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vax_frame_chain (struct frame_info *frame)
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{
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/* In the case of the VAX, the frame's nominal address is the FP value,
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and 12 bytes later comes the saved previous FP value as a 4-byte word. */
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if (inside_entry_file (get_frame_pc (frame)))
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return (0);
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return (read_memory_integer (frame->frame + 12, 4));
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}
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static void
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vax_push_dummy_frame (void)
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{
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CORE_ADDR sp = read_register (SP_REGNUM);
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int regnum;
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sp = push_word (sp, 0); /* arglist */
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for (regnum = 11; regnum >= 0; regnum--)
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sp = push_word (sp, read_register (regnum));
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sp = push_word (sp, read_register (PC_REGNUM));
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sp = push_word (sp, read_register (FP_REGNUM));
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sp = push_word (sp, read_register (VAX_AP_REGNUM));
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sp = push_word (sp, (read_register (PS_REGNUM) & 0xffef) + 0x2fff0000);
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sp = push_word (sp, 0);
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write_register (SP_REGNUM, sp);
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write_register (FP_REGNUM, sp);
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write_register (VAX_AP_REGNUM, sp + (17 * 4));
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}
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static void
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vax_pop_frame (void)
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{
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CORE_ADDR fp = read_register (FP_REGNUM);
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int regnum;
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int regmask = read_memory_integer (fp + 4, 4);
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write_register (PS_REGNUM,
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(regmask & 0xffff)
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| (read_register (PS_REGNUM) & 0xffff0000));
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write_register (PC_REGNUM, read_memory_integer (fp + 16, 4));
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write_register (FP_REGNUM, read_memory_integer (fp + 12, 4));
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write_register (VAX_AP_REGNUM, read_memory_integer (fp + 8, 4));
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fp += 16;
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for (regnum = 0; regnum < 12; regnum++)
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if (regmask & (0x10000 << regnum))
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write_register (regnum, read_memory_integer (fp += 4, 4));
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fp = fp + 4 + ((regmask >> 30) & 3);
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if (regmask & 0x20000000)
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{
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regnum = read_memory_integer (fp, 4);
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fp += (regnum + 1) * 4;
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}
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write_register (SP_REGNUM, fp);
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flush_cached_frames ();
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}
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/* The VAX call dummy sequence:
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calls #69, @#32323232
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bpt
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It is 8 bytes long. The address and argc are patched by
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vax_fix_call_dummy(). */
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static LONGEST vax_call_dummy_words[] = { 0x329f69fb, 0x03323232 };
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static int sizeof_vax_call_dummy_words = sizeof(vax_call_dummy_words);
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static void
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vax_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
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struct value **args, struct type *type, int gcc_p)
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{
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dummy[1] = nargs;
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store_unsigned_integer (dummy + 3, 4, fun);
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}
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static void
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vax_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
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{
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write_register (1, addr);
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}
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static void
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vax_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
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{
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memcpy (valbuf, regbuf + REGISTER_BYTE (0), TYPE_LENGTH (valtype));
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}
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static void
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vax_store_return_value (struct type *valtype, char *valbuf)
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{
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deprecated_write_register_bytes (0, valbuf, TYPE_LENGTH (valtype));
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}
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static CORE_ADDR
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vax_extract_struct_value_address (char *regbuf)
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{
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return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0)));
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}
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static const unsigned char *
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vax_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
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{
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static const unsigned char vax_breakpoint[] = { 3 };
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*lenptr = sizeof(vax_breakpoint);
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return (vax_breakpoint);
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}
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/* Advance PC across any function entry prologue instructions
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to reach some "real" code. */
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static CORE_ADDR
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vax_skip_prologue (CORE_ADDR pc)
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{
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register int op = (unsigned char) read_memory_integer (pc, 1);
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if (op == 0x11)
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pc += 2; /* skip brb */
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if (op == 0x31)
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pc += 3; /* skip brw */
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if (op == 0xC2
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&& ((unsigned char) read_memory_integer (pc + 2, 1)) == 0x5E)
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pc += 3; /* skip subl2 */
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if (op == 0x9E
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&& ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xAE
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&& ((unsigned char) read_memory_integer (pc + 3, 1)) == 0x5E)
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pc += 4; /* skip movab */
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if (op == 0x9E
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&& ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xCE
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&& ((unsigned char) read_memory_integer (pc + 4, 1)) == 0x5E)
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pc += 5; /* skip movab */
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if (op == 0x9E
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&& ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xEE
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&& ((unsigned char) read_memory_integer (pc + 6, 1)) == 0x5E)
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pc += 7; /* skip movab */
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return pc;
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}
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static CORE_ADDR
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vax_saved_pc_after_call (struct frame_info *frame)
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{
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return (FRAME_SAVED_PC(frame));
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}
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/* Print the vax instruction at address MEMADDR in debugged memory,
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from disassembler info INFO.
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Returns length of the instruction, in bytes. */
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static int
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vax_print_insn (CORE_ADDR memaddr, disassemble_info *info)
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{
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unsigned char buffer[MAXLEN];
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register int i;
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register unsigned char *p;
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||
const char *d;
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||
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int status = (*info->read_memory_func) (memaddr, buffer, MAXLEN, info);
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||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, memaddr, info);
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return -1;
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||
}
|
||
|
||
for (i = 0; i < NOPCODES; i++)
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if (votstrs[i].detail.code == buffer[0]
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|| votstrs[i].detail.code == *(unsigned short *) buffer)
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break;
|
||
|
||
/* Handle undefined instructions. */
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||
if (i == NOPCODES)
|
||
{
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||
(*info->fprintf_func) (info->stream, "0%o", buffer[0]);
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return 1;
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||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "%s", votstrs[i].name);
|
||
|
||
/* Point at first byte of argument data,
|
||
and at descriptor for first argument. */
|
||
p = buffer + 1 + (votstrs[i].detail.code >= 0x100);
|
||
d = votstrs[i].detail.args;
|
||
|
||
if (*d)
|
||
(*info->fprintf_func) (info->stream, " ");
|
||
|
||
while (*d)
|
||
{
|
||
p = print_insn_arg (d, p, memaddr + (p - buffer), info);
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||
d += 2;
|
||
if (*d)
|
||
(*info->fprintf_func) (info->stream, ",");
|
||
}
|
||
return p - buffer;
|
||
}
|
||
|
||
static unsigned char *
|
||
print_insn_arg (char *d, register char *p, CORE_ADDR addr,
|
||
disassemble_info *info)
|
||
{
|
||
register int regnum = *p & 0xf;
|
||
float floatlitbuf;
|
||
|
||
if (*d == 'b')
|
||
{
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||
if (d[1] == 'b')
|
||
(*info->fprintf_func) (info->stream, "0x%x", addr + *p++ + 1);
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||
else
|
||
{
|
||
(*info->fprintf_func) (info->stream, "0x%x", addr + *(short *) p + 2);
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||
p += 2;
|
||
}
|
||
}
|
||
else
|
||
switch ((*p++ >> 4) & 0xf)
|
||
{
|
||
case 0:
|
||
case 1:
|
||
case 2:
|
||
case 3: /* Literal mode */
|
||
if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h')
|
||
{
|
||
*(int *) &floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4);
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||
(*info->fprintf_func) (info->stream, "$%f", floatlitbuf);
|
||
}
|
||
else
|
||
(*info->fprintf_func) (info->stream, "$%d", p[-1] & 0x3f);
|
||
break;
|
||
|
||
case 4: /* Indexed */
|
||
p = (char *) print_insn_arg (d, p, addr + 1, info);
|
||
(*info->fprintf_func) (info->stream, "[%s]", REGISTER_NAME (regnum));
|
||
break;
|
||
|
||
case 5: /* Register */
|
||
(*info->fprintf_func) (info->stream, REGISTER_NAME (regnum));
|
||
break;
|
||
|
||
case 7: /* Autodecrement */
|
||
(*info->fprintf_func) (info->stream, "-");
|
||
case 6: /* Register deferred */
|
||
(*info->fprintf_func) (info->stream, "(%s)", REGISTER_NAME (regnum));
|
||
break;
|
||
|
||
case 9: /* Autoincrement deferred */
|
||
(*info->fprintf_func) (info->stream, "@");
|
||
if (regnum == PC_REGNUM)
|
||
{
|
||
(*info->fprintf_func) (info->stream, "#");
|
||
info->target = *(long *) p;
|
||
(*info->print_address_func) (info->target, info);
|
||
p += 4;
|
||
break;
|
||
}
|
||
case 8: /* Autoincrement */
|
||
if (regnum == PC_REGNUM)
|
||
{
|
||
(*info->fprintf_func) (info->stream, "#");
|
||
switch (d[1])
|
||
{
|
||
case 'b':
|
||
(*info->fprintf_func) (info->stream, "%d", *p++);
|
||
break;
|
||
|
||
case 'w':
|
||
(*info->fprintf_func) (info->stream, "%d", *(short *) p);
|
||
p += 2;
|
||
break;
|
||
|
||
case 'l':
|
||
(*info->fprintf_func) (info->stream, "%d", *(long *) p);
|
||
p += 4;
|
||
break;
|
||
|
||
case 'q':
|
||
(*info->fprintf_func) (info->stream, "0x%x%08x",
|
||
((long *) p)[1], ((long *) p)[0]);
|
||
p += 8;
|
||
break;
|
||
|
||
case 'o':
|
||
(*info->fprintf_func) (info->stream, "0x%x%08x%08x%08x",
|
||
((long *) p)[3], ((long *) p)[2],
|
||
((long *) p)[1], ((long *) p)[0]);
|
||
p += 16;
|
||
break;
|
||
|
||
case 'f':
|
||
if (INVALID_FLOAT (p, 4))
|
||
(*info->fprintf_func) (info->stream,
|
||
"<<invalid float 0x%x>>",
|
||
*(int *) p);
|
||
else
|
||
(*info->fprintf_func) (info->stream, "%f", *(float *) p);
|
||
p += 4;
|
||
break;
|
||
|
||
case 'd':
|
||
if (INVALID_FLOAT (p, 8))
|
||
(*info->fprintf_func) (info->stream,
|
||
"<<invalid float 0x%x%08x>>",
|
||
((long *) p)[1], ((long *) p)[0]);
|
||
else
|
||
(*info->fprintf_func) (info->stream, "%f", *(double *) p);
|
||
p += 8;
|
||
break;
|
||
|
||
case 'g':
|
||
(*info->fprintf_func) (info->stream, "g-float");
|
||
p += 8;
|
||
break;
|
||
|
||
case 'h':
|
||
(*info->fprintf_func) (info->stream, "h-float");
|
||
p += 16;
|
||
break;
|
||
|
||
}
|
||
}
|
||
else
|
||
(*info->fprintf_func) (info->stream, "(%s)+", REGISTER_NAME (regnum));
|
||
break;
|
||
|
||
case 11: /* Byte displacement deferred */
|
||
(*info->fprintf_func) (info->stream, "@");
|
||
case 10: /* Byte displacement */
|
||
if (regnum == PC_REGNUM)
|
||
{
|
||
info->target = addr + *p + 2;
|
||
(*info->print_address_func) (info->target, info);
|
||
}
|
||
else
|
||
(*info->fprintf_func) (info->stream, "%d(%s)", *p, REGISTER_NAME (regnum));
|
||
p += 1;
|
||
break;
|
||
|
||
case 13: /* Word displacement deferred */
|
||
(*info->fprintf_func) (info->stream, "@");
|
||
case 12: /* Word displacement */
|
||
if (regnum == PC_REGNUM)
|
||
{
|
||
info->target = addr + *(short *) p + 3;
|
||
(*info->print_address_func) (info->target, info);
|
||
}
|
||
else
|
||
(*info->fprintf_func) (info->stream, "%d(%s)",
|
||
*(short *) p, REGISTER_NAME (regnum));
|
||
p += 2;
|
||
break;
|
||
|
||
case 15: /* Long displacement deferred */
|
||
(*info->fprintf_func) (info->stream, "@");
|
||
case 14: /* Long displacement */
|
||
if (regnum == PC_REGNUM)
|
||
{
|
||
info->target = addr + *(short *) p + 5;
|
||
(*info->print_address_func) (info->target, info);
|
||
}
|
||
else
|
||
(*info->fprintf_func) (info->stream, "%d(%s)",
|
||
*(long *) p, REGISTER_NAME (regnum));
|
||
p += 4;
|
||
}
|
||
|
||
return (unsigned char *) p;
|
||
}
|
||
|
||
/* Initialize the current architecture based on INFO. If possible, re-use an
|
||
architecture from ARCHES, which is a list of architectures already created
|
||
during this debugging session.
|
||
|
||
Called e.g. at program startup, when reading a core file, and when reading
|
||
a binary file. */
|
||
|
||
static struct gdbarch *
|
||
vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
|
||
{
|
||
struct gdbarch_tdep *tdep;
|
||
struct gdbarch *gdbarch;
|
||
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
|
||
|
||
/* Try to determine the ABI of the object we are loading. */
|
||
|
||
if (info.abfd != NULL)
|
||
osabi = gdbarch_lookup_osabi (info.abfd);
|
||
|
||
/* Find a candidate among extant architectures. */
|
||
for (arches = gdbarch_list_lookup_by_info (arches, &info);
|
||
arches != NULL;
|
||
arches = gdbarch_list_lookup_by_info (arches->next, &info))
|
||
{
|
||
/* Make sure the ABI selection matches. */
|
||
tdep = gdbarch_tdep (arches->gdbarch);
|
||
if (tdep && tdep->osabi == osabi)
|
||
return arches->gdbarch;
|
||
}
|
||
|
||
tdep = xmalloc (sizeof (struct gdbarch_tdep));
|
||
gdbarch = gdbarch_alloc (&info, tdep);
|
||
|
||
/* NOTE: cagney/2002-12-06: This can be deleted when this arch is
|
||
ready to unwind the PC first (see frame.c:get_prev_frame()). */
|
||
set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
|
||
|
||
tdep->osabi = osabi;
|
||
|
||
/* Register info */
|
||
set_gdbarch_num_regs (gdbarch, VAX_NUM_REGS);
|
||
set_gdbarch_sp_regnum (gdbarch, VAX_SP_REGNUM);
|
||
set_gdbarch_fp_regnum (gdbarch, VAX_FP_REGNUM);
|
||
set_gdbarch_pc_regnum (gdbarch, VAX_PC_REGNUM);
|
||
set_gdbarch_ps_regnum (gdbarch, VAX_PS_REGNUM);
|
||
|
||
set_gdbarch_register_name (gdbarch, vax_register_name);
|
||
set_gdbarch_register_size (gdbarch, VAX_REGISTER_SIZE);
|
||
set_gdbarch_register_bytes (gdbarch, VAX_REGISTER_BYTES);
|
||
set_gdbarch_register_byte (gdbarch, vax_register_byte);
|
||
set_gdbarch_register_raw_size (gdbarch, vax_register_raw_size);
|
||
set_gdbarch_max_register_raw_size (gdbarch, VAX_MAX_REGISTER_RAW_SIZE);
|
||
set_gdbarch_register_virtual_size (gdbarch, vax_register_virtual_size);
|
||
set_gdbarch_max_register_virtual_size (gdbarch,
|
||
VAX_MAX_REGISTER_VIRTUAL_SIZE);
|
||
set_gdbarch_register_virtual_type (gdbarch, vax_register_virtual_type);
|
||
|
||
/* Frame and stack info */
|
||
set_gdbarch_skip_prologue (gdbarch, vax_skip_prologue);
|
||
set_gdbarch_saved_pc_after_call (gdbarch, vax_saved_pc_after_call);
|
||
|
||
set_gdbarch_frame_num_args (gdbarch, vax_frame_num_args);
|
||
set_gdbarch_frameless_function_invocation (gdbarch,
|
||
generic_frameless_function_invocation_not);
|
||
|
||
set_gdbarch_frame_chain (gdbarch, vax_frame_chain);
|
||
set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
|
||
set_gdbarch_frame_saved_pc (gdbarch, vax_frame_saved_pc);
|
||
|
||
set_gdbarch_frame_args_address (gdbarch, vax_frame_args_address);
|
||
set_gdbarch_frame_locals_address (gdbarch, vax_frame_locals_address);
|
||
|
||
set_gdbarch_frame_init_saved_regs (gdbarch, vax_frame_init_saved_regs);
|
||
|
||
set_gdbarch_frame_args_skip (gdbarch, 4);
|
||
|
||
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
|
||
|
||
/* Return value info */
|
||
set_gdbarch_store_struct_return (gdbarch, vax_store_struct_return);
|
||
set_gdbarch_deprecated_extract_return_value (gdbarch, vax_extract_return_value);
|
||
set_gdbarch_deprecated_store_return_value (gdbarch, vax_store_return_value);
|
||
set_gdbarch_deprecated_extract_struct_value_address (gdbarch, vax_extract_struct_value_address);
|
||
|
||
/* Call dummy info */
|
||
set_gdbarch_push_dummy_frame (gdbarch, vax_push_dummy_frame);
|
||
set_gdbarch_pop_frame (gdbarch, vax_pop_frame);
|
||
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
|
||
set_gdbarch_call_dummy_p (gdbarch, 1);
|
||
set_gdbarch_call_dummy_words (gdbarch, vax_call_dummy_words);
|
||
set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof_vax_call_dummy_words);
|
||
set_gdbarch_fix_call_dummy (gdbarch, vax_fix_call_dummy);
|
||
set_gdbarch_call_dummy_start_offset (gdbarch, 0);
|
||
set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
|
||
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 7);
|
||
set_gdbarch_deprecated_use_generic_dummy_frames (gdbarch, 0);
|
||
set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
|
||
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
|
||
|
||
/* Breakpoint info */
|
||
set_gdbarch_breakpoint_from_pc (gdbarch, vax_breakpoint_from_pc);
|
||
set_gdbarch_decr_pc_after_break (gdbarch, 0);
|
||
|
||
/* Misc info */
|
||
set_gdbarch_function_start_offset (gdbarch, 2);
|
||
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
|
||
|
||
/* Hook in ABI-specific overrides, if they have been registered. */
|
||
gdbarch_init_osabi (info, gdbarch, osabi);
|
||
|
||
return (gdbarch);
|
||
}
|
||
|
||
static void
|
||
vax_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
|
||
{
|
||
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
||
|
||
if (tdep == NULL)
|
||
return;
|
||
|
||
fprintf_unfiltered (file, "vax_dump_tdep: OS ABI = %s\n",
|
||
gdbarch_osabi_name (tdep->osabi));
|
||
}
|
||
|
||
void
|
||
_initialize_vax_tdep (void)
|
||
{
|
||
gdbarch_register (bfd_arch_vax, vax_gdbarch_init, vax_dump_tdep);
|
||
|
||
tm_print_insn = vax_print_insn;
|
||
}
|