gdb/config/pa/tm-hppa64.h

   1 /* Parameters for execution on any Hewlett-Packard PA-RISC machine.
   2    Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995, 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5    Contributed by the Center for Software Science at the
   6    University of Utah (pa-gdb-bugs@cs.utah.edu).
   7
   8 This file is part of GDB.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /* PA 64-bit specific definitions.  Override those which are in
  25    tm-hppa.h */
  26
  27 /* jimb: this must go.  I'm just using it to disable code I haven't
  28    gotten working yet.  */
  29 #define GDB_TARGET_IS_HPPA_20W
  30
  31 /* FIXME: brobecker 2003-04-21: Although 32bit hppa is partially multiarched,
  32    the conversion for hppa64 hasn't been completed yet.  */
  33 #define GDB_MULTI_ARCH 0
  34
  35 #include "pa/tm-hppah.h"
  36
  37 #define HPUX_1100 1
  38
  39 /* The low two bits of the IA are the privilege level of the instruction.  */
  40 #define ADDR_BITS_REMOVE(addr) ((CORE_ADDR)addr & (CORE_ADDR)~3)
  41
  42 /* Say how long (ordinary) registers are.  This is used in
  43    push_word and a few other places, but REGISTER_RAW_SIZE is
  44    the real way to know how big a register is.  */
  45
  46 #undef REGISTER_SIZE
  47 #define REGISTER_SIZE 8
  48
  49 /* Number of bytes of storage in the actual machine representation
  50    for register N.  On the PA-RISC 2.0, all regs are 8 bytes, including
  51    the FP registers (they're accessed as two 4 byte halves).  */
  52
  53 #undef REGISTER_RAW_SIZE
  54 #define REGISTER_RAW_SIZE(N) 8
  55
  56 /* Largest value REGISTER_RAW_SIZE can have.  */
  57
  58 #undef DEPRECATED_MAX_REGISTER_RAW_SIZE
  59 #define DEPRECATED_MAX_REGISTER_RAW_SIZE 8
  60
  61 /* Total amount of space needed to store our copies of the machine's
  62    register state, the array `registers'.  */
  63
  64 #undef REGISTER_BYTES
  65 #define REGISTER_BYTES (NUM_REGS * 8)
  66
  67 /* Index within `registers' of the first byte of the space for
  68    register N.  */
  69
  70 #undef REGISTER_BYTE
  71 #define REGISTER_BYTE(N) ((N) * 8)
  72
  73 #undef REGISTER_VIRTUAL_TYPE
  74 #define REGISTER_VIRTUAL_TYPE(N) \
  75  ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double)
  76
  77
  78 /* Number of machine registers */
  79 #undef NUM_REGS
  80 #define NUM_REGS 96
  81
  82 /* Initializer for an array of names of registers.
  83    There should be NUM_REGS strings in this initializer.
  84    They are in rows of eight entries  */
  85 #undef REGISTER_NAMES
  86 #define REGISTER_NAMES  \
  87  {"flags",  "r1",      "rp",      "r3",    "r4",     "r5",      "r6",     "r7",    \
  88   "r8",     "r9",      "r10",     "r11",   "r12",    "r13",     "r14",    "r15",   \
  89   "r16",    "r17",     "r18",     "r19",   "r20",    "r21",     "r22",    "r23",   \
  90   "r24",    "r25",     "r26",     "dp",    "ret0",   "ret1",    "sp",     "r31",   \
  91   "sar",    "pcoqh",   "pcsqh",   "pcoqt", "pcsqt",  "eiem",    "iir",    "isr",   \
  92   "ior",    "ipsw",    "goto",    "sr4",   "sr0",    "sr1",     "sr2",    "sr3",   \
  93   "sr5",    "sr6",     "sr7",     "cr0",   "cr8",    "cr9",     "ccr",    "cr12",  \
  94   "cr13",   "cr24",    "cr25",    "cr26",  "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\
  95   "fpsr",    "fpe1",   "fpe2",    "fpe3",  "fr4",    "fr5",     "fr6",    "fr7", \
  96   "fr8",     "fr9",    "fr10",    "fr11",  "fr12",   "fr13",    "fr14",   "fr15", \
  97   "fr16",    "fr17",   "fr18",    "fr19",  "fr20",   "fr21",    "fr22",   "fr23", \
  98   "fr24",    "fr25",   "fr26",    "fr27",   "fr28",  "fr29",    "fr30",   "fr31"}
  99
 100 #undef FP0_REGNUM
 101 #undef FP4_REGNUM
 102 #define FP0_REGNUM 64           /* floating point reg. 0 (fspr)*/
 103 #define FP4_REGNUM 68
 104
 105 /* Redefine some target bit sizes from the default.  */
 106
 107 /* Number of bits in a long or unsigned long for the target machine. */
 108
 109 #define TARGET_LONG_BIT 64
 110
 111 /* Number of bits in a long long or unsigned long long for the
 112    target machine.  */
 113
 114 #define TARGET_LONG_LONG_BIT 64
 115
 116 /* Number of bits in a pointer for the target machine */
 117
 118 #define TARGET_PTR_BIT 64
 119
 120 /* Argument Pointer Register */
 121 #define AP_REGNUM 29
 122
 123 #define DP_REGNUM 27
 124
 125 #define FP5_REGNUM 70
 126
 127 #define SR5_REGNUM 48
 128
 129 /* We access locals from SP. This may not work for frames which call
 130    alloca; for those, we may need to consult unwind tables.
 131    jimb: FIXME.  */
 132 #undef FRAME_LOCALS_ADDRESS
 133 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 134
 135 /* For a number of horrible reasons we may have to adjust the location
 136    of variables on the stack.  Ugh.  jimb: why? */
 137 #define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR)
 138
 139 extern int hpread_adjust_stack_address (CORE_ADDR);
 140
 141
 142 /* jimb: omitted dynamic linking stuff here */
 143
 144 /* This sequence of words is the instructions
 145
 146 ; Call stack frame has already been built by gdb. Since we could be calling
 147 ; a varargs function, and we do not have the benefit of a stub to put things in
 148 ; the right place, we load the first 8 word of arguments into both the general
 149 ; and fp registers.
 150 call_dummy
 151         nop
 152         copy %r4,%r29
 153         copy %r5,%r22
 154         copy %r6,%r27
 155         fldd -64(0,%r29),%fr4
 156         fldd -56(0,%r29),%fr5
 157         fldd -48(0,%r29),%fr6
 158         fldd -40(0,%r29),%fr7
 159         fldd -32(0,%r29),%fr8
 160         fldd -24(0,%r29),%fr9
 161         fldd -16(0,%r29),%fr10
 162         fldd -8(0,%r29),%fr11
 163         copy %r22,%r1
 164         ldd -64(%r29), %r26
 165         ldd -56(%r29), %r25
 166         ldd -48(%r29), %r24
 167         ldd -40(%r29), %r23
 168         ldd -32(%r29), %r22
 169         ldd -24(%r29), %r21
 170         ldd -16(%r29), %r20
 171         bve,l (%r1),%r2
 172         ldd -8(%r29), %r19
 173         break 4, 8
 174         mtsp %r21, %sr0
 175         ble 0(%sr0, %r22)
 176         nop
 177 */
 178
 179 /* Call dummys are sized and written out in word sized hunks.  So we have
 180    to pack the instructions into words.  Ugh.  */
 181 #undef CALL_DUMMY
 182 #define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \
 183                     0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\
 184                     0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\
 185                     0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\
 186                     0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\
 187                     0xe820f0000fb110d3LL, 0x0001000400151820LL,\
 188                     0xe6c0000008000240LL}
 189
 190 #define CALL_DUMMY_BREAKPOINT_OFFSET 22 * 4
 191
 192 /* CALL_DUMMY_LENGTH is computed based on the size of a word on the target
 193    machine, not the size of an instruction.  Since a word on this target
 194    holds two instructions we have to divide the instruction size by two to
 195    get the word size of the dummy.  */
 196 #undef CALL_DUMMY_LENGTH
 197 #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 26 / 2)
 198
 199 /* The PA64 ABI mandates a 16 byte stack alignment.  */
 200 #undef STACK_ALIGN
 201 #define STACK_ALIGN(arg) ( ((arg)%16) ? (((arg)+15)&-16) : (arg))
 202
 203 /* The PA64 ABI reserves 64 bytes of stack space for outgoing register
 204    parameters.  */
 205 #undef REG_PARM_STACK_SPACE
 206 #define REG_PARM_STACK_SPACE 64
 207
 208 /* Use the 64-bit calling conventions designed for the PA2.0 in wide mode.  */
 209 #define PA20W_CALLING_CONVENTIONS
 210
 211 #undef FUNC_LDIL_OFFSET
 212 #undef FUNC_LDO_OFFSET
 213 #undef SR4EXPORT_LDIL_OFFSET
 214 #undef SR4EXPORT_LDO_OFFSET
 215
 216 #undef REG_STRUCT_HAS_ADDR
 217
 218 #undef DEPRECATED_EXTRACT_RETURN_VALUE
 219 /* RM: floats are returned in FR4R, doubles in FR4
 220  *     integral values are in r28, padded on the left
 221  *     aggregates less that 65 bits are in r28, right padded
 222  *     aggregates upto 128 bits are in r28 and r29, right padded
 223  */
 224 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
 225   { \
 226     if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \
 227       memcpy ((VALBUF), \
 228               ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \
 229               (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 230               TYPE_LENGTH (TYPE)); \
 231     else if  (is_integral_type(TYPE) || SOFT_FLOAT)   \
 232        memcpy ((VALBUF), \
 233                (char *)(REGBUF) + REGISTER_BYTE (28) + \
 234                (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 235                TYPE_LENGTH (TYPE)); \
 236     else if (TYPE_LENGTH (TYPE) <= 8)   \
 237        memcpy ((VALBUF), \
 238                (char *)(REGBUF) + REGISTER_BYTE (28), \
 239                TYPE_LENGTH (TYPE)); \
 240     else if (TYPE_LENGTH (TYPE) <= 16)   \
 241       { \
 242         memcpy ((VALBUF), \
 243                 (char *)(REGBUF) + REGISTER_BYTE (28), \
 244                 8); \
 245         memcpy (((char *) VALBUF + 8), \
 246                 (char *)(REGBUF) + REGISTER_BYTE (29), \
 247                 TYPE_LENGTH (TYPE) - 8); \
 248        } \
 249   }
 250
 251 /* RM: struct upto 128 bits are returned in registers */
 252 #undef USE_STRUCT_CONVENTION
 253 #define USE_STRUCT_CONVENTION(gcc_p, value_type)\
 254   (TYPE_LENGTH (value_type) > 16)
 255
 256 /* RM: for return command */
 257 #undef DEPRECATED_STORE_RETURN_VALUE
 258 #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
 259   { \
 260     if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \
 261       deprecated_write_register_bytes \
 262               (REGISTER_BYTE (FP4_REGNUM) + \
 263               (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 264               (VALBUF), \
 265               TYPE_LENGTH (TYPE)); \
 266     else if (is_integral_type(TYPE) || SOFT_FLOAT)   \
 267        deprecated_write_register_bytes \
 268               (REGISTER_BYTE (28) + \
 269                  (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 270                (VALBUF), \
 271                TYPE_LENGTH (TYPE)); \
 272     else if (TYPE_LENGTH (TYPE) <= 8)   \
 273        deprecated_write_register_bytes \
 274              ( REGISTER_BYTE (28), \
 275                (VALBUF), \
 276                TYPE_LENGTH (TYPE)); \
 277     else if (TYPE_LENGTH (TYPE) <= 16)   \
 278       { \
 279         deprecated_write_register_bytes \
 280                (REGISTER_BYTE (28), \
 281                 (VALBUF), \
 282                 8); \
 283         deprecated_write_register_bytes \
 284                (REGISTER_BYTE (29), \
 285                 ((char *) VALBUF + 8), \
 286                 TYPE_LENGTH (TYPE) - 8); \
 287        } \
 288   }
 289
 290 /* RM: these are the PA64 equivalents of the macros in tm-hppah.h --
 291  * see comments there.  For PA64, the save_state structure is at an
 292  * offset of 24 32-bit words from the sigcontext structure. The 64 bit
 293  * general registers are at an offset of 640 bytes from the beginning of the
 294  * save_state structure, and the floating pointer register are at an offset
 295  * of 256 bytes from the beginning of the save_state structure.
 296  */
 297 #undef FRAME_SAVED_PC_IN_SIGTRAMP
 298 #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
 299 { \
 300   *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \
 301 }
 302
 303 #undef FRAME_BASE_BEFORE_SIGTRAMP
 304 #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
 305 { \
 306   *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \
 307 }
 308
 309 #undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP
 310 #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
 311 { \
 312   int i; \
 313   CORE_ADDR TMP1, TMP2; \
 314   TMP1 = (FRAME)->frame + (24 * 4) + 640; \
 315   TMP2 = (FRAME)->frame + (24 * 4) + 256; \
 316   for (i = 0; i < NUM_REGS; i++) \
 317     { \
 318       if (i == SP_REGNUM) \
 319         (FSR)[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \
 320       else if (i >= FP0_REGNUM) \
 321         (FSR)[i] = TMP2 + (i - FP0_REGNUM) * 8; \
 322       else \
 323         (FSR)[i] = TMP1 + i * 8; \
 324     } \
 325 }
 326
 327 /* jimb: omitted purify call support */