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adf40b2e JM |
1 | /* Parameters for execution on any Hewlett-Packard PA-RISC machine. |
2 | Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995 | |
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 | #include "pa/tm-hppah.h" | |
28 | ||
29 | #define HPUX_1100 1 | |
30 | ||
31 | /* jimb: this must go. I'm just using it to disable code I haven't | |
32 | gotten working yet. */ | |
33 | #define GDB_TARGET_IS_HPPA_20W | |
34 | ||
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) | |
37 | ||
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. */ | |
41 | ||
42 | #undef REGISTER_SIZE | |
43 | #define REGISTER_SIZE 8 | |
44 | ||
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). */ | |
48 | ||
49 | #undef REGISTER_RAW_SIZE | |
50 | #define REGISTER_RAW_SIZE(N) 8 | |
51 | ||
52 | /* Largest value REGISTER_RAW_SIZE can have. */ | |
53 | ||
54 | #undef MAX_REGISTER_RAW_SIZE | |
55 | #define MAX_REGISTER_RAW_SIZE 8 | |
56 | ||
57 | /* Total amount of space needed to store our copies of the machine's | |
58 | register state, the array `registers'. */ | |
59 | ||
60 | #undef REGISTER_BYTES | |
61 | #define REGISTER_BYTES (NUM_REGS * 8) | |
62 | ||
63 | /* Index within `registers' of the first byte of the space for | |
64 | register N. */ | |
65 | ||
66 | #undef REGISTER_BYTE | |
67 | #define REGISTER_BYTE(N) ((N) * 8) | |
68 | ||
69 | #undef REGISTER_VIRTUAL_TYPE | |
70 | #define REGISTER_VIRTUAL_TYPE(N) \ | |
71 | ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double) | |
72 | ||
73 | ||
74 | /* Number of machine registers */ | |
75 | #undef NUM_REGS | |
76 | #define NUM_REGS 96 | |
77 | ||
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 */ | |
81 | #undef REGISTER_NAMES | |
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"} | |
95 | ||
96 | #undef FP0_REGNUM | |
97 | #undef FP4_REGNUM | |
98 | #define FP0_REGNUM 64 /* floating point reg. 0 (fspr)*/ | |
99 | #define FP4_REGNUM 68 | |
100 | ||
101 | /* Redefine some target bit sizes from the default. */ | |
102 | ||
103 | /* Number of bits in a long or unsigned long for the target machine. */ | |
104 | ||
105 | #define TARGET_LONG_BIT 64 | |
106 | ||
107 | /* Number of bits in a long long or unsigned long long for the | |
108 | target machine. */ | |
109 | ||
110 | #define TARGET_LONG_LONG_BIT 64 | |
111 | ||
112 | /* Number of bits in a pointer for the target machine */ | |
113 | ||
114 | #define TARGET_PTR_BIT 64 | |
115 | ||
116 | /* Argument Pointer Register */ | |
117 | #define AP_REGNUM 29 | |
118 | ||
119 | #define DP_REGNUM 27 | |
120 | ||
121 | #define FP5_REGNUM 70 | |
122 | ||
123 | #define SR5_REGNUM 48 | |
124 | ||
125 | #undef FRAME_ARGS_ADDRESS | |
126 | #define FRAME_ARGS_ADDRESS(fi) ((fi)->ap) | |
127 | ||
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. | |
130 | jimb: FIXME. */ | |
131 | #undef FRAME_LOCALS_ADDRESS | |
132 | #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) | |
133 | ||
134 | #define INIT_FRAME_AP init_frame_ap | |
135 | ||
136 | #define EXTRA_FRAME_INFO \ | |
137 | CORE_ADDR ap; | |
138 | ||
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) | |
142 | ||
143 | extern int hpread_adjust_stack_address PARAMS ((CORE_ADDR)); | |
144 | ||
145 | ||
146 | /* jimb: omitted dynamic linking stuff here */ | |
147 | ||
148 | /* This sequence of words is the instructions | |
149 | ||
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 | |
153 | ; and fp registers. | |
154 | call_dummy | |
155 | copy %r4,%r29 | |
156 | copy %r5,%r22 | |
157 | copy %r6,%r27 | |
158 | fldd -64(0,%r29),%fr4 | |
159 | fldd -56(0,%r29),%fr5 | |
160 | fldd -48(0,%r29),%fr6 | |
161 | fldd -40(0,%r29),%fr7 | |
162 | fldd -32(0,%r29),%fr8 | |
163 | fldd -24(0,%r29),%fr9 | |
164 | fldd -16(0,%r29),%fr10 | |
165 | fldd -8(0,%r29),%fr11 | |
166 | copy %r22,%r1 | |
167 | ldd -64(%r29), %r26 | |
168 | ldd -56(%r29), %r25 | |
169 | ldd -48(%r29), %r24 | |
170 | ldd -40(%r29), %r23 | |
171 | ldd -32(%r29), %r22 | |
172 | ldd -24(%r29), %r21 | |
173 | ldd -16(%r29), %r20 | |
174 | bve,l (%r1),%r2 | |
175 | ldd -8(%r29), %r19 | |
176 | break 4, 8 | |
177 | mtsp %r21, %sr0 | |
178 | ble 0(%sr0, %r22) | |
179 | nop | |
180 | */ | |
181 | ||
182 | #undef CALL_DUMMY | |
183 | #define CALL_DUMMY {0x349d0000, 0x34b60000, 0x34db0000, \ | |
184 | 0x53a43f83, 0x53a53f93, 0x53a63fa3, 0x53a73fb3,\ | |
185 | 0x53a83fc3, 0x53a93fd3, 0x2fa1100a, 0x2fb1100b,\ | |
186 | 0x36c10000, 0x53ba3f81, 0x53b93f91, 0x53b83fa1,\ | |
187 | 0x53b73fb1, 0x53b63fc1, 0x53b53fd1, 0x0fa110d4,\ | |
188 | 0xe820f000, 0x0fb110d3, 0x00010004, 0x00151820,\ | |
189 | 0xe6c00000, 0x08000240} | |
190 | ||
191 | #undef CALL_DUMMY_LENGTH | |
192 | #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 25) | |
193 | ||
194 | #undef FUNC_LDIL_OFFSET | |
195 | #undef FUNC_LDO_OFFSET | |
196 | #undef SR4EXPORT_LDIL_OFFSET | |
197 | #undef SR4EXPORT_LDO_OFFSET | |
198 | #undef CALL_DUMMY_LOCATION | |
199 | /* jimb: need to find out what AT_WDB_CALL_DUMMY is about */ | |
200 | #if 0 | |
201 | #define CALL_DUMMY_LOCATION AFTER_TEXT_END | |
202 | extern CORE_ADDR wdb_call_dummy_addr; | |
203 | #undef PC_IN_CALL_DUMMY | |
204 | #define PC_IN_CALL_DUMMY(pc, sp, frame_address) \ | |
205 | ((pc) >= wdb_call_dummy_addr && \ | |
206 | (pc) <= wdb_call_dummy_addr + CALL_DUMMY_LENGTH) | |
207 | #endif | |
208 | ||
209 | #undef REG_STRUCT_HAS_ADDR | |
210 | ||
211 | #undef EXTRACT_RETURN_VALUE | |
212 | /* RM: floats are returned in FR4R, doubles in FR4 | |
213 | * integral values are in r28, padded on the left | |
214 | * aggregates less that 65 bits are in r28, right padded | |
215 | * aggregates upto 128 bits are in r28 and r29, right padded | |
216 | */ | |
217 | #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ | |
218 | { \ | |
219 | if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \ | |
220 | memcpy ((VALBUF), \ | |
221 | ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \ | |
222 | (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ | |
223 | TYPE_LENGTH (TYPE)); \ | |
224 | else if (is_integral_type(TYPE) || SOFT_FLOAT) \ | |
225 | memcpy ((VALBUF), \ | |
226 | (char *)(REGBUF) + REGISTER_BYTE (28) + \ | |
227 | (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ | |
228 | TYPE_LENGTH (TYPE)); \ | |
229 | else if (TYPE_LENGTH (TYPE) <= 8) \ | |
230 | memcpy ((VALBUF), \ | |
231 | (char *)(REGBUF) + REGISTER_BYTE (28), \ | |
232 | TYPE_LENGTH (TYPE)); \ | |
233 | else if (TYPE_LENGTH (TYPE) <= 16) \ | |
234 | { \ | |
235 | memcpy ((VALBUF), \ | |
236 | (char *)(REGBUF) + REGISTER_BYTE (28), \ | |
237 | 8); \ | |
238 | memcpy (((char *) VALBUF + 8), \ | |
239 | (char *)(REGBUF) + REGISTER_BYTE (29), \ | |
240 | TYPE_LENGTH (TYPE) - 8); \ | |
241 | } \ | |
242 | } | |
243 | ||
244 | /* RM: struct upto 128 bits are returned in registers */ | |
245 | #undef USE_STRUCT_CONVENTION | |
246 | #define USE_STRUCT_CONVENTION(gcc_p, value_type)\ | |
247 | (TYPE_LENGTH (value_type) > 16) | |
248 | ||
249 | /* RM: for return command */ | |
250 | #undef STORE_RETURN_VALUE | |
251 | #define STORE_RETURN_VALUE(TYPE,VALBUF) \ | |
252 | { \ | |
253 | if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \ | |
254 | write_register_bytes \ | |
255 | (REGISTER_BYTE (FP4_REGNUM) + \ | |
256 | (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ | |
257 | (VALBUF), \ | |
258 | TYPE_LENGTH (TYPE)); \ | |
259 | else if (is_integral_type(TYPE) || SOFT_FLOAT) \ | |
260 | write_register_bytes \ | |
261 | (REGISTER_BYTE (28) + \ | |
262 | (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ | |
263 | (VALBUF), \ | |
264 | TYPE_LENGTH (TYPE)); \ | |
265 | else if (TYPE_LENGTH (TYPE) <= 8) \ | |
266 | write_register_bytes \ | |
267 | ( REGISTER_BYTE (28), \ | |
268 | (VALBUF), \ | |
269 | TYPE_LENGTH (TYPE)); \ | |
270 | else if (TYPE_LENGTH (TYPE) <= 16) \ | |
271 | { \ | |
272 | write_register_bytes \ | |
273 | (REGISTER_BYTE (28), \ | |
274 | (VALBUF), \ | |
275 | 8); \ | |
276 | write_register_bytes \ | |
277 | (REGISTER_BYTE (29), \ | |
278 | ((char *) VALBUF + 8), \ | |
279 | TYPE_LENGTH (TYPE) - 8); \ | |
280 | } \ | |
281 | } | |
282 | ||
283 | /* RM: these are the PA64 equivalents of the macros in tm-hppah.h -- | |
284 | * see comments there. For PA64, the save_state structure is at an | |
285 | * offset of 24 32-bit words from the sigcontext structure. The 64 bit | |
286 | * general registers are at an offset of 640 bytes from the beginning of the | |
287 | * save_state structure, and the floating pointer register are at an offset | |
288 | * of 256 bytes from the beginning of the save_state structure. | |
289 | */ | |
290 | #undef FRAME_SAVED_PC_IN_SIGTRAMP | |
291 | #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \ | |
292 | { \ | |
293 | *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \ | |
294 | } | |
295 | ||
296 | #undef FRAME_BASE_BEFORE_SIGTRAMP | |
297 | #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \ | |
298 | { \ | |
299 | *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \ | |
300 | } | |
301 | ||
302 | #undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP | |
303 | #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \ | |
304 | { \ | |
305 | int i; \ | |
306 | CORE_ADDR TMP1, TMP2; \ | |
307 | TMP1 = (FRAME)->frame + (24 * 4) + 640; \ | |
308 | TMP2 = (FRAME)->frame + (24 * 4) + 256; \ | |
309 | for (i = 0; i < NUM_REGS; i++) \ | |
310 | { \ | |
311 | if (i == SP_REGNUM) \ | |
312 | (FSR)->regs[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \ | |
313 | else if (i >= FP0_REGNUM) \ | |
314 | (FSR)->regs[i] = TMP2 + (i - FP0_REGNUM) * 8; \ | |
315 | else \ | |
316 | (FSR)->regs[i] = TMP1 + i * 8; \ | |
317 | } \ | |
318 | } | |
319 | ||
320 | /* jimb: omitted purify call support */ |