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.
5 Contributed by the Center for Software Science at the
8 This file is part of GDB.
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.
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.
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. */
24 /* PA 64-bit specific definitions. Override those which are in
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
31 #include "pa/tm-hppah.h"
35 /* The low two bits of the IA are the privilege level of the instruction. */
36 #define ADDR_BITS_REMOVE(addr) ((CORE_ADDR)addr & (CORE_ADDR)~3)
38 /* Say how long (ordinary) registers are. This is used in
39 push_word and a few other places, but REGISTER_RAW_SIZE is
40 the real way to know how big a register is. */
43 #define REGISTER_SIZE 8
45 /* Number of bytes of storage in the actual machine representation
46 for register N. On the PA-RISC 2.0, all regs are 8 bytes, including
47 the FP registers (they're accessed as two 4 byte halves). */
49 #undef REGISTER_RAW_SIZE
50 #define REGISTER_RAW_SIZE(N) 8
52 /* Largest value REGISTER_RAW_SIZE can have. */
54 #undef MAX_REGISTER_RAW_SIZE
55 #define MAX_REGISTER_RAW_SIZE 8
57 /* Total amount of space needed to store our copies of the machine's
58 register state, the array `registers'. */
61 #define REGISTER_BYTES (NUM_REGS * 8)
63 /* Index within `registers' of the first byte of the space for
67 #define REGISTER_BYTE(N) ((N) * 8)
69 #undef REGISTER_VIRTUAL_TYPE
70 #define REGISTER_VIRTUAL_TYPE(N) \
71 ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double)
74 /* Number of machine registers */
78 /* Initializer for an array of names of registers.
79 There should be NUM_REGS strings in this initializer.
80 They are in rows of eight entries */
82 #define REGISTER_NAMES \
83 {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", \
84 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
85 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
86 "r24", "r25", "r26", "dp", "ret0", "ret1", "sp", "r31", \
87 "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", "eiem", "iir", "isr", \
88 "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", "sr3", \
89 "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", \
90 "cr13", "cr24", "cr25", "cr26", "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\
91 "fpsr", "fpe1", "fpe2", "fpe3", "fr4", "fr5", "fr6", "fr7", \
92 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15", \
93 "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23", \
94 "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"}
98 #define FP0_REGNUM 64 /* floating point reg. 0 (fspr)*/
101 /* Redefine some target bit sizes from the default. */
103 /* Number of bits in a long or unsigned long for the target machine. */
105 #define TARGET_LONG_BIT 64
107 /* Number of bits in a long long or unsigned long long for the
110 #define TARGET_LONG_LONG_BIT 64
112 /* Number of bits in a pointer for the target machine */
114 #define TARGET_PTR_BIT 64
116 /* Argument Pointer Register */
121 #define FP5_REGNUM 70
123 #define SR5_REGNUM 48
125 #undef FRAME_ARGS_ADDRESS
126 #define FRAME_ARGS_ADDRESS(fi) ((fi)->ap)
128 /* We access locals from SP. This may not work for frames which call
129 alloca; for those, we may need to consult unwind tables.
131 #undef FRAME_LOCALS_ADDRESS
132 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
134 #define INIT_FRAME_AP init_frame_ap
136 #define EXTRA_FRAME_INFO \
139 /* For a number of horrible reasons we may have to adjust the location
140 of variables on the stack. Ugh. jimb: why? */
141 #define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR)
143 extern int hpread_adjust_stack_address (CORE_ADDR);
146 /* jimb: omitted dynamic linking stuff here */
148 /* This sequence of words is the instructions
150 ; Call stack frame has already been built by gdb. Since we could be calling
151 ; a varargs function, and we do not have the benefit of a stub to put things in
152 ; the right place, we load the first 8 word of arguments into both the general
159 fldd -64(0,%r29),%fr4
160 fldd -56(0,%r29),%fr5
161 fldd -48(0,%r29),%fr6
162 fldd -40(0,%r29),%fr7
163 fldd -32(0,%r29),%fr8
164 fldd -24(0,%r29),%fr9
165 fldd -16(0,%r29),%fr10
166 fldd -8(0,%r29),%fr11
183 /* Call dummys are sized and written out in word sized hunks. So we have
184 to pack the instructions into words. Ugh. */
186 #define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \
187 0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\
188 0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\
189 0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\
190 0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\
191 0xe820f0000fb110d3LL, 0x0001000400151820LL,\
192 0xe6c0000008000240LL}
194 #define CALL_DUMMY_BREAKPOINT_OFFSET_P 1
195 #define CALL_DUMMY_BREAKPOINT_OFFSET 22 * 4
197 /* CALL_DUMMY_LENGTH is computed based on the size of a word on the target
198 machine, not the size of an instruction. Since a word on this target
199 holds two instructions we have to divide the instruction size by two to
200 get the word size of the dummy. */
201 #undef CALL_DUMMY_LENGTH
202 #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 26 / 2)
204 /* The PA64 ABI mandates a 16 byte stack alignment. */
206 #define STACK_ALIGN(arg) ( ((arg)%16) ? (((arg)+15)&-16) : (arg))
208 /* The PA64 ABI reserves 64 bytes of stack space for outgoing register
210 #undef REG_PARM_STACK_SPACE
211 #define REG_PARM_STACK_SPACE 64
213 /* Use the 64-bit calling conventions designed for the PA2.0 in wide mode. */
214 #define PA20W_CALLING_CONVENTIONS
216 #undef FUNC_LDIL_OFFSET
217 #undef FUNC_LDO_OFFSET
218 #undef SR4EXPORT_LDIL_OFFSET
219 #undef SR4EXPORT_LDO_OFFSET
220 #undef CALL_DUMMY_LOCATION
222 #undef REG_STRUCT_HAS_ADDR
224 #undef DEPRECATED_EXTRACT_RETURN_VALUE
225 /* RM: floats are returned in FR4R, doubles in FR4
226 * integral values are in r28, padded on the left
227 * aggregates less that 65 bits are in r28, right padded
228 * aggregates upto 128 bits are in r28 and r29, right padded
230 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
232 if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \
234 ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \
235 (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
236 TYPE_LENGTH (TYPE)); \
237 else if (is_integral_type(TYPE) || SOFT_FLOAT) \
239 (char *)(REGBUF) + REGISTER_BYTE (28) + \
240 (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
241 TYPE_LENGTH (TYPE)); \
242 else if (TYPE_LENGTH (TYPE) <= 8) \
244 (char *)(REGBUF) + REGISTER_BYTE (28), \
245 TYPE_LENGTH (TYPE)); \
246 else if (TYPE_LENGTH (TYPE) <= 16) \
249 (char *)(REGBUF) + REGISTER_BYTE (28), \
251 memcpy (((char *) VALBUF + 8), \
252 (char *)(REGBUF) + REGISTER_BYTE (29), \
253 TYPE_LENGTH (TYPE) - 8); \
257 /* RM: struct upto 128 bits are returned in registers */
258 #undef USE_STRUCT_CONVENTION
259 #define USE_STRUCT_CONVENTION(gcc_p, value_type)\
260 (TYPE_LENGTH (value_type) > 16)
262 /* RM: for return command */
263 #undef STORE_RETURN_VALUE
264 #define STORE_RETURN_VALUE(TYPE,VALBUF) \
266 if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \
267 write_register_bytes \
268 (REGISTER_BYTE (FP4_REGNUM) + \
269 (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
271 TYPE_LENGTH (TYPE)); \
272 else if (is_integral_type(TYPE) || SOFT_FLOAT) \
273 write_register_bytes \
274 (REGISTER_BYTE (28) + \
275 (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
277 TYPE_LENGTH (TYPE)); \
278 else if (TYPE_LENGTH (TYPE) <= 8) \
279 write_register_bytes \
280 ( REGISTER_BYTE (28), \
282 TYPE_LENGTH (TYPE)); \
283 else if (TYPE_LENGTH (TYPE) <= 16) \
285 write_register_bytes \
286 (REGISTER_BYTE (28), \
289 write_register_bytes \
290 (REGISTER_BYTE (29), \
291 ((char *) VALBUF + 8), \
292 TYPE_LENGTH (TYPE) - 8); \
296 /* RM: these are the PA64 equivalents of the macros in tm-hppah.h --
297 * see comments there. For PA64, the save_state structure is at an
298 * offset of 24 32-bit words from the sigcontext structure. The 64 bit
299 * general registers are at an offset of 640 bytes from the beginning of the
300 * save_state structure, and the floating pointer register are at an offset
301 * of 256 bytes from the beginning of the save_state structure.
303 #undef FRAME_SAVED_PC_IN_SIGTRAMP
304 #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
306 *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \
309 #undef FRAME_BASE_BEFORE_SIGTRAMP
310 #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
312 *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \
315 #undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP
316 #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
319 CORE_ADDR TMP1, TMP2; \
320 TMP1 = (FRAME)->frame + (24 * 4) + 640; \
321 TMP2 = (FRAME)->frame + (24 * 4) + 256; \
322 for (i = 0; i < NUM_REGS; i++) \
324 if (i == SP_REGNUM) \
325 (FSR)->regs[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \
326 else if (i >= FP0_REGNUM) \
327 (FSR)->regs[i] = TMP2 + (i - FP0_REGNUM) * 8; \
329 (FSR)->regs[i] = TMP1 + i * 8; \
333 /* jimb: omitted purify call support */