1 /* Dynamic architecture support for GDB, the GNU debugger.
2 Copyright 1998-1999, Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
25 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
27 /* Just include everything in sight so that the every old definition
28 of macro is visible. */
29 #include "gdb_string.h"
34 #include "breakpoint.h"
39 #include "gdbthread.h"
41 #include "symfile.h" /* for overlay functions */
44 /* Convenience macro for allocting typesafe memory. */
47 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
51 /* Use the program counter to determine the contents and size
52 of a breakpoint instruction. If no target-dependent macro
53 BREAKPOINT_FROM_PC has been defined to implement this function,
54 assume that the breakpoint doesn't depend on the PC, and
55 use the values of the BIG_BREAKPOINT and LITTLE_BREAKPOINT macros.
56 Return a pointer to a string of bytes that encode a breakpoint
57 instruction, stores the length of the string to *lenptr,
58 and optionally adjust the pc to point to the correct memory location
59 for inserting the breakpoint. */
62 legacy_breakpoint_from_pc (CORE_ADDR * pcptr, int *lenptr)
64 /* {BIG_,LITTLE_}BREAKPOINT is the sequence of bytes we insert for a
65 breakpoint. On some machines, breakpoints are handled by the
66 target environment and we don't have to worry about them here. */
68 if (TARGET_BYTE_ORDER == BIG_ENDIAN)
70 static unsigned char big_break_insn[] = BIG_BREAKPOINT;
71 *lenptr = sizeof (big_break_insn);
72 return big_break_insn;
75 #ifdef LITTLE_BREAKPOINT
76 if (TARGET_BYTE_ORDER != BIG_ENDIAN)
78 static unsigned char little_break_insn[] = LITTLE_BREAKPOINT;
79 *lenptr = sizeof (little_break_insn);
80 return little_break_insn;
85 static unsigned char break_insn[] = BREAKPOINT;
86 *lenptr = sizeof (break_insn);
95 generic_frameless_function_invocation_not (struct frame_info *fi)
101 generic_return_value_on_stack_not (struct type *type)
107 legacy_register_name (int i)
109 #ifdef REGISTER_NAMES
110 static char *names[] = REGISTER_NAMES;
111 if (i < 0 || i >= (sizeof (names) / sizeof (*names)))
116 internal_error ("legacy_register_name: called.");
121 #if defined (CALL_DUMMY)
122 LONGEST legacy_call_dummy_words[] = CALL_DUMMY;
124 LONGEST legacy_call_dummy_words[1];
126 int legacy_sizeof_call_dummy_words = sizeof (legacy_call_dummy_words);
129 generic_remote_translate_xfer_address (CORE_ADDR gdb_addr, int gdb_len,
130 CORE_ADDR * rem_addr, int *rem_len)
132 *rem_addr = gdb_addr;
137 generic_prologue_frameless_p (CORE_ADDR ip)
139 #ifdef SKIP_PROLOGUE_FRAMELESS_P
140 return ip == SKIP_PROLOGUE_FRAMELESS_P (ip);
142 return ip == SKIP_PROLOGUE (ip);
149 extern initialize_file_ftype __initialize_gdbarch_utils;
152 __initialize_gdbarch_utils (void)