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16461d7d | 1 | /* Target-dependent code for the IA-64 for GDB, the GNU debugger. |
ca557f44 | 2 | |
51603483 | 3 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
16461d7d KB |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "defs.h" | |
23 | #include "inferior.h" | |
24 | #include "symfile.h" /* for entry_point_address */ | |
25 | #include "gdbcore.h" | |
8064c6ae | 26 | #include "arch-utils.h" |
16461d7d | 27 | #include "floatformat.h" |
4e052eda | 28 | #include "regcache.h" |
d16aafd8 | 29 | #include "doublest.h" |
fd0407d6 | 30 | #include "value.h" |
16461d7d KB |
31 | |
32 | #include "objfiles.h" | |
33 | #include "elf/common.h" /* for DT_PLTGOT value */ | |
244bc108 | 34 | #include "elf-bfd.h" |
16461d7d | 35 | |
698cb3f0 KB |
36 | /* Hook for determining the global pointer when calling functions in |
37 | the inferior under AIX. The initialization code in ia64-aix-nat.c | |
38 | sets this hook to the address of a function which will find the | |
39 | global pointer for a given address. | |
40 | ||
41 | The generic code which uses the dynamic section in the inferior for | |
42 | finding the global pointer is not of much use on AIX since the | |
43 | values obtained from the inferior have not been relocated. */ | |
44 | ||
45 | CORE_ADDR (*native_find_global_pointer) (CORE_ADDR) = 0; | |
46 | ||
47 | /* An enumeration of the different IA-64 instruction types. */ | |
48 | ||
16461d7d KB |
49 | typedef enum instruction_type |
50 | { | |
51 | A, /* Integer ALU ; I-unit or M-unit */ | |
52 | I, /* Non-ALU integer; I-unit */ | |
53 | M, /* Memory ; M-unit */ | |
54 | F, /* Floating-point ; F-unit */ | |
55 | B, /* Branch ; B-unit */ | |
56 | L, /* Extended (L+X) ; I-unit */ | |
57 | X, /* Extended (L+X) ; I-unit */ | |
58 | undefined /* undefined or reserved */ | |
59 | } instruction_type; | |
60 | ||
61 | /* We represent IA-64 PC addresses as the value of the instruction | |
62 | pointer or'd with some bit combination in the low nibble which | |
63 | represents the slot number in the bundle addressed by the | |
64 | instruction pointer. The problem is that the Linux kernel | |
65 | multiplies its slot numbers (for exceptions) by one while the | |
66 | disassembler multiplies its slot numbers by 6. In addition, I've | |
67 | heard it said that the simulator uses 1 as the multiplier. | |
68 | ||
69 | I've fixed the disassembler so that the bytes_per_line field will | |
70 | be the slot multiplier. If bytes_per_line comes in as zero, it | |
71 | is set to six (which is how it was set up initially). -- objdump | |
72 | displays pretty disassembly dumps with this value. For our purposes, | |
73 | we'll set bytes_per_line to SLOT_MULTIPLIER. This is okay since we | |
74 | never want to also display the raw bytes the way objdump does. */ | |
75 | ||
76 | #define SLOT_MULTIPLIER 1 | |
77 | ||
78 | /* Length in bytes of an instruction bundle */ | |
79 | ||
80 | #define BUNDLE_LEN 16 | |
81 | ||
d7fa2ae2 | 82 | /* FIXME: These extern declarations should go in ia64-tdep.h. */ |
244bc108 | 83 | extern CORE_ADDR ia64_linux_sigcontext_register_address (CORE_ADDR, int); |
d7fa2ae2 | 84 | extern CORE_ADDR ia64_aix_sigcontext_register_address (CORE_ADDR, int); |
244bc108 | 85 | |
16461d7d KB |
86 | static gdbarch_init_ftype ia64_gdbarch_init; |
87 | ||
88 | static gdbarch_register_name_ftype ia64_register_name; | |
89 | static gdbarch_register_raw_size_ftype ia64_register_raw_size; | |
90 | static gdbarch_register_virtual_size_ftype ia64_register_virtual_size; | |
91 | static gdbarch_register_virtual_type_ftype ia64_register_virtual_type; | |
92 | static gdbarch_register_byte_ftype ia64_register_byte; | |
93 | static gdbarch_breakpoint_from_pc_ftype ia64_breakpoint_from_pc; | |
16461d7d | 94 | static gdbarch_skip_prologue_ftype ia64_skip_prologue; |
26e9b323 AC |
95 | static gdbarch_deprecated_extract_return_value_ftype ia64_extract_return_value; |
96 | static gdbarch_deprecated_extract_struct_value_address_ftype ia64_extract_struct_value_address; | |
16461d7d KB |
97 | static gdbarch_use_struct_convention_ftype ia64_use_struct_convention; |
98 | static gdbarch_frameless_function_invocation_ftype ia64_frameless_function_invocation; | |
6913c89a | 99 | static gdbarch_deprecated_saved_pc_after_call_ftype ia64_saved_pc_after_call; |
16461d7d | 100 | static void ia64_pop_frame_regular (struct frame_info *frame); |
64a5b29c | 101 | static struct type *is_float_or_hfa_type (struct type *t); |
16461d7d KB |
102 | |
103 | static int ia64_num_regs = 590; | |
104 | ||
105 | static int pc_regnum = IA64_IP_REGNUM; | |
106 | static int sp_regnum = IA64_GR12_REGNUM; | |
107 | static int fp_regnum = IA64_VFP_REGNUM; | |
108 | static int lr_regnum = IA64_VRAP_REGNUM; | |
109 | ||
110 | static LONGEST ia64_call_dummy_words[] = {0}; | |
111 | ||
112 | /* Array of register names; There should be ia64_num_regs strings in | |
113 | the initializer. */ | |
114 | ||
115 | static char *ia64_register_names[] = | |
116 | { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
117 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
118 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
119 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
120 | "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", | |
121 | "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", | |
122 | "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", | |
123 | "r56", "r57", "r58", "r59", "r60", "r61", "r62", "r63", | |
124 | "r64", "r65", "r66", "r67", "r68", "r69", "r70", "r71", | |
125 | "r72", "r73", "r74", "r75", "r76", "r77", "r78", "r79", | |
126 | "r80", "r81", "r82", "r83", "r84", "r85", "r86", "r87", | |
127 | "r88", "r89", "r90", "r91", "r92", "r93", "r94", "r95", | |
128 | "r96", "r97", "r98", "r99", "r100", "r101", "r102", "r103", | |
129 | "r104", "r105", "r106", "r107", "r108", "r109", "r110", "r111", | |
130 | "r112", "r113", "r114", "r115", "r116", "r117", "r118", "r119", | |
131 | "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", | |
132 | ||
133 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", | |
134 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", | |
135 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", | |
136 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", | |
137 | "f32", "f33", "f34", "f35", "f36", "f37", "f38", "f39", | |
138 | "f40", "f41", "f42", "f43", "f44", "f45", "f46", "f47", | |
139 | "f48", "f49", "f50", "f51", "f52", "f53", "f54", "f55", | |
140 | "f56", "f57", "f58", "f59", "f60", "f61", "f62", "f63", | |
141 | "f64", "f65", "f66", "f67", "f68", "f69", "f70", "f71", | |
142 | "f72", "f73", "f74", "f75", "f76", "f77", "f78", "f79", | |
143 | "f80", "f81", "f82", "f83", "f84", "f85", "f86", "f87", | |
144 | "f88", "f89", "f90", "f91", "f92", "f93", "f94", "f95", | |
145 | "f96", "f97", "f98", "f99", "f100", "f101", "f102", "f103", | |
146 | "f104", "f105", "f106", "f107", "f108", "f109", "f110", "f111", | |
147 | "f112", "f113", "f114", "f115", "f116", "f117", "f118", "f119", | |
148 | "f120", "f121", "f122", "f123", "f124", "f125", "f126", "f127", | |
149 | ||
150 | "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7", | |
151 | "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", | |
152 | "p16", "p17", "p18", "p19", "p20", "p21", "p22", "p23", | |
153 | "p24", "p25", "p26", "p27", "p28", "p29", "p30", "p31", | |
154 | "p32", "p33", "p34", "p35", "p36", "p37", "p38", "p39", | |
155 | "p40", "p41", "p42", "p43", "p44", "p45", "p46", "p47", | |
156 | "p48", "p49", "p50", "p51", "p52", "p53", "p54", "p55", | |
157 | "p56", "p57", "p58", "p59", "p60", "p61", "p62", "p63", | |
158 | ||
159 | "b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7", | |
160 | ||
161 | "vfp", "vrap", | |
162 | ||
163 | "pr", "ip", "psr", "cfm", | |
164 | ||
165 | "kr0", "kr1", "kr2", "kr3", "kr4", "kr5", "kr6", "kr7", | |
166 | "", "", "", "", "", "", "", "", | |
167 | "rsc", "bsp", "bspstore", "rnat", | |
168 | "", "fcr", "", "", | |
169 | "eflag", "csd", "ssd", "cflg", "fsr", "fir", "fdr", "", | |
170 | "ccv", "", "", "", "unat", "", "", "", | |
171 | "fpsr", "", "", "", "itc", | |
172 | "", "", "", "", "", "", "", "", "", "", | |
173 | "", "", "", "", "", "", "", "", "", | |
174 | "pfs", "lc", "ec", | |
175 | "", "", "", "", "", "", "", "", "", "", | |
176 | "", "", "", "", "", "", "", "", "", "", | |
177 | "", "", "", "", "", "", "", "", "", "", | |
178 | "", "", "", "", "", "", "", "", "", "", | |
179 | "", "", "", "", "", "", "", "", "", "", | |
180 | "", "", "", "", "", "", "", "", "", "", | |
181 | "", | |
182 | "nat0", "nat1", "nat2", "nat3", "nat4", "nat5", "nat6", "nat7", | |
183 | "nat8", "nat9", "nat10", "nat11", "nat12", "nat13", "nat14", "nat15", | |
184 | "nat16", "nat17", "nat18", "nat19", "nat20", "nat21", "nat22", "nat23", | |
185 | "nat24", "nat25", "nat26", "nat27", "nat28", "nat29", "nat30", "nat31", | |
186 | "nat32", "nat33", "nat34", "nat35", "nat36", "nat37", "nat38", "nat39", | |
187 | "nat40", "nat41", "nat42", "nat43", "nat44", "nat45", "nat46", "nat47", | |
188 | "nat48", "nat49", "nat50", "nat51", "nat52", "nat53", "nat54", "nat55", | |
189 | "nat56", "nat57", "nat58", "nat59", "nat60", "nat61", "nat62", "nat63", | |
190 | "nat64", "nat65", "nat66", "nat67", "nat68", "nat69", "nat70", "nat71", | |
191 | "nat72", "nat73", "nat74", "nat75", "nat76", "nat77", "nat78", "nat79", | |
192 | "nat80", "nat81", "nat82", "nat83", "nat84", "nat85", "nat86", "nat87", | |
193 | "nat88", "nat89", "nat90", "nat91", "nat92", "nat93", "nat94", "nat95", | |
194 | "nat96", "nat97", "nat98", "nat99", "nat100","nat101","nat102","nat103", | |
195 | "nat104","nat105","nat106","nat107","nat108","nat109","nat110","nat111", | |
196 | "nat112","nat113","nat114","nat115","nat116","nat117","nat118","nat119", | |
197 | "nat120","nat121","nat122","nat123","nat124","nat125","nat126","nat127", | |
198 | }; | |
199 | ||
200 | struct frame_extra_info | |
244bc108 KB |
201 | { |
202 | CORE_ADDR bsp; /* points at r32 for the current frame */ | |
203 | CORE_ADDR cfm; /* cfm value for current frame */ | |
204 | int sof; /* Size of frame (decoded from cfm value) */ | |
205 | int sol; /* Size of locals (decoded from cfm value) */ | |
206 | CORE_ADDR after_prologue; | |
207 | /* Address of first instruction after the last | |
16461d7d KB |
208 | prologue instruction; Note that there may |
209 | be instructions from the function's body | |
210 | intermingled with the prologue. */ | |
244bc108 KB |
211 | int mem_stack_frame_size; |
212 | /* Size of the memory stack frame (may be zero), | |
16461d7d | 213 | or -1 if it has not been determined yet. */ |
244bc108 KB |
214 | int fp_reg; /* Register number (if any) used a frame pointer |
215 | for this frame. 0 if no register is being used | |
16461d7d | 216 | as the frame pointer. */ |
244bc108 KB |
217 | }; |
218 | ||
219 | struct gdbarch_tdep | |
220 | { | |
221 | int os_ident; /* From the ELF header, one of the ELFOSABI_ | |
ef58a6ac | 222 | constants: ELFOSABI_LINUX, ELFOSABI_AIX, |
244bc108 KB |
223 | etc. */ |
224 | CORE_ADDR (*sigcontext_register_address) (CORE_ADDR, int); | |
225 | /* OS specific function which, given a frame address | |
226 | and register number, returns the offset to the | |
227 | given register from the start of the frame. */ | |
698cb3f0 | 228 | CORE_ADDR (*find_global_pointer) (CORE_ADDR); |
244bc108 KB |
229 | }; |
230 | ||
698cb3f0 KB |
231 | #define SIGCONTEXT_REGISTER_ADDRESS \ |
232 | (gdbarch_tdep (current_gdbarch)->sigcontext_register_address) | |
233 | #define FIND_GLOBAL_POINTER \ | |
234 | (gdbarch_tdep (current_gdbarch)->find_global_pointer) | |
16461d7d | 235 | |
fa88f677 | 236 | static const char * |
16461d7d KB |
237 | ia64_register_name (int reg) |
238 | { | |
239 | return ia64_register_names[reg]; | |
240 | } | |
241 | ||
242 | int | |
243 | ia64_register_raw_size (int reg) | |
244 | { | |
245 | return (IA64_FR0_REGNUM <= reg && reg <= IA64_FR127_REGNUM) ? 16 : 8; | |
246 | } | |
247 | ||
248 | int | |
249 | ia64_register_virtual_size (int reg) | |
250 | { | |
251 | return (IA64_FR0_REGNUM <= reg && reg <= IA64_FR127_REGNUM) ? 16 : 8; | |
252 | } | |
253 | ||
254 | /* Return true iff register N's virtual format is different from | |
255 | its raw format. */ | |
256 | int | |
257 | ia64_register_convertible (int nr) | |
258 | { | |
259 | return (IA64_FR0_REGNUM <= nr && nr <= IA64_FR127_REGNUM); | |
260 | } | |
261 | ||
262 | const struct floatformat floatformat_ia64_ext = | |
263 | { | |
264 | floatformat_little, 82, 0, 1, 17, 65535, 0x1ffff, 18, 64, | |
265 | floatformat_intbit_yes | |
266 | }; | |
267 | ||
268 | void | |
269 | ia64_register_convert_to_virtual (int regnum, struct type *type, | |
270 | char *from, char *to) | |
271 | { | |
272 | if (regnum >= IA64_FR0_REGNUM && regnum <= IA64_FR127_REGNUM) | |
273 | { | |
274 | DOUBLEST val; | |
275 | floatformat_to_doublest (&floatformat_ia64_ext, from, &val); | |
f1908289 | 276 | deprecated_store_floating (to, TYPE_LENGTH(type), val); |
16461d7d KB |
277 | } |
278 | else | |
279 | error("ia64_register_convert_to_virtual called with non floating point register number"); | |
280 | } | |
281 | ||
282 | void | |
283 | ia64_register_convert_to_raw (struct type *type, int regnum, | |
284 | char *from, char *to) | |
285 | { | |
286 | if (regnum >= IA64_FR0_REGNUM && regnum <= IA64_FR127_REGNUM) | |
287 | { | |
f1908289 | 288 | DOUBLEST val = deprecated_extract_floating (from, TYPE_LENGTH(type)); |
16461d7d KB |
289 | floatformat_from_doublest (&floatformat_ia64_ext, &val, to); |
290 | } | |
291 | else | |
292 | error("ia64_register_convert_to_raw called with non floating point register number"); | |
293 | } | |
294 | ||
295 | struct type * | |
296 | ia64_register_virtual_type (int reg) | |
297 | { | |
298 | if (reg >= IA64_FR0_REGNUM && reg <= IA64_FR127_REGNUM) | |
299 | return builtin_type_long_double; | |
300 | else | |
301 | return builtin_type_long; | |
302 | } | |
303 | ||
304 | int | |
305 | ia64_register_byte (int reg) | |
306 | { | |
307 | return (8 * reg) + | |
308 | (reg <= IA64_FR0_REGNUM ? 0 : 8 * ((reg > IA64_FR127_REGNUM) ? 128 : reg - IA64_FR0_REGNUM)); | |
309 | } | |
310 | ||
244bc108 KB |
311 | /* Read the given register from a sigcontext structure in the |
312 | specified frame. */ | |
313 | ||
314 | static CORE_ADDR | |
315 | read_sigcontext_register (struct frame_info *frame, int regnum) | |
316 | { | |
317 | CORE_ADDR regaddr; | |
318 | ||
319 | if (frame == NULL) | |
8e65ff28 AC |
320 | internal_error (__FILE__, __LINE__, |
321 | "read_sigcontext_register: NULL frame"); | |
5a203e44 | 322 | if (!(get_frame_type (frame) == SIGTRAMP_FRAME)) |
8e65ff28 | 323 | internal_error (__FILE__, __LINE__, |
5a203e44 | 324 | "read_sigcontext_register: frame not a signal trampoline"); |
244bc108 | 325 | if (SIGCONTEXT_REGISTER_ADDRESS == 0) |
8e65ff28 AC |
326 | internal_error (__FILE__, __LINE__, |
327 | "read_sigcontext_register: SIGCONTEXT_REGISTER_ADDRESS is 0"); | |
244bc108 | 328 | |
1e2330ba | 329 | regaddr = SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), regnum); |
244bc108 KB |
330 | if (regaddr) |
331 | return read_memory_integer (regaddr, REGISTER_RAW_SIZE (regnum)); | |
332 | else | |
8e65ff28 AC |
333 | internal_error (__FILE__, __LINE__, |
334 | "read_sigcontext_register: Register %d not in struct sigcontext", regnum); | |
244bc108 KB |
335 | } |
336 | ||
16461d7d KB |
337 | /* Extract ``len'' bits from an instruction bundle starting at |
338 | bit ``from''. */ | |
339 | ||
244bc108 | 340 | static long long |
16461d7d KB |
341 | extract_bit_field (char *bundle, int from, int len) |
342 | { | |
343 | long long result = 0LL; | |
344 | int to = from + len; | |
345 | int from_byte = from / 8; | |
346 | int to_byte = to / 8; | |
347 | unsigned char *b = (unsigned char *) bundle; | |
348 | unsigned char c; | |
349 | int lshift; | |
350 | int i; | |
351 | ||
352 | c = b[from_byte]; | |
353 | if (from_byte == to_byte) | |
354 | c = ((unsigned char) (c << (8 - to % 8))) >> (8 - to % 8); | |
355 | result = c >> (from % 8); | |
356 | lshift = 8 - (from % 8); | |
357 | ||
358 | for (i = from_byte+1; i < to_byte; i++) | |
359 | { | |
360 | result |= ((long long) b[i]) << lshift; | |
361 | lshift += 8; | |
362 | } | |
363 | ||
364 | if (from_byte < to_byte && (to % 8 != 0)) | |
365 | { | |
366 | c = b[to_byte]; | |
367 | c = ((unsigned char) (c << (8 - to % 8))) >> (8 - to % 8); | |
368 | result |= ((long long) c) << lshift; | |
369 | } | |
370 | ||
371 | return result; | |
372 | } | |
373 | ||
374 | /* Replace the specified bits in an instruction bundle */ | |
375 | ||
244bc108 | 376 | static void |
16461d7d KB |
377 | replace_bit_field (char *bundle, long long val, int from, int len) |
378 | { | |
379 | int to = from + len; | |
380 | int from_byte = from / 8; | |
381 | int to_byte = to / 8; | |
382 | unsigned char *b = (unsigned char *) bundle; | |
383 | unsigned char c; | |
384 | ||
385 | if (from_byte == to_byte) | |
386 | { | |
387 | unsigned char left, right; | |
388 | c = b[from_byte]; | |
389 | left = (c >> (to % 8)) << (to % 8); | |
390 | right = ((unsigned char) (c << (8 - from % 8))) >> (8 - from % 8); | |
391 | c = (unsigned char) (val & 0xff); | |
392 | c = (unsigned char) (c << (from % 8 + 8 - to % 8)) >> (8 - to % 8); | |
393 | c |= right | left; | |
394 | b[from_byte] = c; | |
395 | } | |
396 | else | |
397 | { | |
398 | int i; | |
399 | c = b[from_byte]; | |
400 | c = ((unsigned char) (c << (8 - from % 8))) >> (8 - from % 8); | |
401 | c = c | (val << (from % 8)); | |
402 | b[from_byte] = c; | |
403 | val >>= 8 - from % 8; | |
404 | ||
405 | for (i = from_byte+1; i < to_byte; i++) | |
406 | { | |
407 | c = val & 0xff; | |
408 | val >>= 8; | |
409 | b[i] = c; | |
410 | } | |
411 | ||
412 | if (to % 8 != 0) | |
413 | { | |
414 | unsigned char cv = (unsigned char) val; | |
415 | c = b[to_byte]; | |
416 | c = c >> (to % 8) << (to % 8); | |
417 | c |= ((unsigned char) (cv << (8 - to % 8))) >> (8 - to % 8); | |
418 | b[to_byte] = c; | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 | /* Return the contents of slot N (for N = 0, 1, or 2) in | |
424 | and instruction bundle */ | |
425 | ||
244bc108 | 426 | static long long |
2fc3ac7e | 427 | slotN_contents (char *bundle, int slotnum) |
16461d7d KB |
428 | { |
429 | return extract_bit_field (bundle, 5+41*slotnum, 41); | |
430 | } | |
431 | ||
432 | /* Store an instruction in an instruction bundle */ | |
433 | ||
244bc108 | 434 | static void |
2fc3ac7e | 435 | replace_slotN_contents (char *bundle, long long instr, int slotnum) |
16461d7d KB |
436 | { |
437 | replace_bit_field (bundle, instr, 5+41*slotnum, 41); | |
438 | } | |
439 | ||
64a5b29c | 440 | static enum instruction_type template_encoding_table[32][3] = |
16461d7d KB |
441 | { |
442 | { M, I, I }, /* 00 */ | |
443 | { M, I, I }, /* 01 */ | |
444 | { M, I, I }, /* 02 */ | |
445 | { M, I, I }, /* 03 */ | |
446 | { M, L, X }, /* 04 */ | |
447 | { M, L, X }, /* 05 */ | |
448 | { undefined, undefined, undefined }, /* 06 */ | |
449 | { undefined, undefined, undefined }, /* 07 */ | |
450 | { M, M, I }, /* 08 */ | |
451 | { M, M, I }, /* 09 */ | |
452 | { M, M, I }, /* 0A */ | |
453 | { M, M, I }, /* 0B */ | |
454 | { M, F, I }, /* 0C */ | |
455 | { M, F, I }, /* 0D */ | |
456 | { M, M, F }, /* 0E */ | |
457 | { M, M, F }, /* 0F */ | |
458 | { M, I, B }, /* 10 */ | |
459 | { M, I, B }, /* 11 */ | |
460 | { M, B, B }, /* 12 */ | |
461 | { M, B, B }, /* 13 */ | |
462 | { undefined, undefined, undefined }, /* 14 */ | |
463 | { undefined, undefined, undefined }, /* 15 */ | |
464 | { B, B, B }, /* 16 */ | |
465 | { B, B, B }, /* 17 */ | |
466 | { M, M, B }, /* 18 */ | |
467 | { M, M, B }, /* 19 */ | |
468 | { undefined, undefined, undefined }, /* 1A */ | |
469 | { undefined, undefined, undefined }, /* 1B */ | |
470 | { M, F, B }, /* 1C */ | |
471 | { M, F, B }, /* 1D */ | |
472 | { undefined, undefined, undefined }, /* 1E */ | |
473 | { undefined, undefined, undefined }, /* 1F */ | |
474 | }; | |
475 | ||
476 | /* Fetch and (partially) decode an instruction at ADDR and return the | |
477 | address of the next instruction to fetch. */ | |
478 | ||
479 | static CORE_ADDR | |
480 | fetch_instruction (CORE_ADDR addr, instruction_type *it, long long *instr) | |
481 | { | |
482 | char bundle[BUNDLE_LEN]; | |
483 | int slotnum = (int) (addr & 0x0f) / SLOT_MULTIPLIER; | |
484 | long long template; | |
485 | int val; | |
486 | ||
c26e1c2b KB |
487 | /* Warn about slot numbers greater than 2. We used to generate |
488 | an error here on the assumption that the user entered an invalid | |
489 | address. But, sometimes GDB itself requests an invalid address. | |
490 | This can (easily) happen when execution stops in a function for | |
491 | which there are no symbols. The prologue scanner will attempt to | |
492 | find the beginning of the function - if the nearest symbol | |
493 | happens to not be aligned on a bundle boundary (16 bytes), the | |
494 | resulting starting address will cause GDB to think that the slot | |
495 | number is too large. | |
496 | ||
497 | So we warn about it and set the slot number to zero. It is | |
498 | not necessarily a fatal condition, particularly if debugging | |
499 | at the assembly language level. */ | |
16461d7d | 500 | if (slotnum > 2) |
c26e1c2b KB |
501 | { |
502 | warning ("Can't fetch instructions for slot numbers greater than 2.\n" | |
503 | "Using slot 0 instead"); | |
504 | slotnum = 0; | |
505 | } | |
16461d7d KB |
506 | |
507 | addr &= ~0x0f; | |
508 | ||
509 | val = target_read_memory (addr, bundle, BUNDLE_LEN); | |
510 | ||
511 | if (val != 0) | |
512 | return 0; | |
513 | ||
514 | *instr = slotN_contents (bundle, slotnum); | |
515 | template = extract_bit_field (bundle, 0, 5); | |
516 | *it = template_encoding_table[(int)template][slotnum]; | |
517 | ||
64a5b29c | 518 | if (slotnum == 2 || (slotnum == 1 && *it == L)) |
16461d7d KB |
519 | addr += 16; |
520 | else | |
521 | addr += (slotnum + 1) * SLOT_MULTIPLIER; | |
522 | ||
523 | return addr; | |
524 | } | |
525 | ||
526 | /* There are 5 different break instructions (break.i, break.b, | |
527 | break.m, break.f, and break.x), but they all have the same | |
528 | encoding. (The five bit template in the low five bits of the | |
529 | instruction bundle distinguishes one from another.) | |
530 | ||
531 | The runtime architecture manual specifies that break instructions | |
532 | used for debugging purposes must have the upper two bits of the 21 | |
533 | bit immediate set to a 0 and a 1 respectively. A breakpoint | |
534 | instruction encodes the most significant bit of its 21 bit | |
535 | immediate at bit 36 of the 41 bit instruction. The penultimate msb | |
536 | is at bit 25 which leads to the pattern below. | |
537 | ||
538 | Originally, I had this set up to do, e.g, a "break.i 0x80000" But | |
539 | it turns out that 0x80000 was used as the syscall break in the early | |
540 | simulators. So I changed the pattern slightly to do "break.i 0x080001" | |
541 | instead. But that didn't work either (I later found out that this | |
542 | pattern was used by the simulator that I was using.) So I ended up | |
543 | using the pattern seen below. */ | |
544 | ||
545 | #if 0 | |
aaab4dba | 546 | #define IA64_BREAKPOINT 0x00002000040LL |
16461d7d | 547 | #endif |
aaab4dba | 548 | #define IA64_BREAKPOINT 0x00003333300LL |
16461d7d KB |
549 | |
550 | static int | |
551 | ia64_memory_insert_breakpoint (CORE_ADDR addr, char *contents_cache) | |
552 | { | |
553 | char bundle[BUNDLE_LEN]; | |
554 | int slotnum = (int) (addr & 0x0f) / SLOT_MULTIPLIER; | |
555 | long long instr; | |
556 | int val; | |
126fa72d | 557 | int template; |
16461d7d KB |
558 | |
559 | if (slotnum > 2) | |
560 | error("Can't insert breakpoint for slot numbers greater than 2."); | |
561 | ||
562 | addr &= ~0x0f; | |
563 | ||
564 | val = target_read_memory (addr, bundle, BUNDLE_LEN); | |
126fa72d PS |
565 | |
566 | /* Check for L type instruction in 2nd slot, if present then | |
567 | bump up the slot number to the 3rd slot */ | |
568 | template = extract_bit_field (bundle, 0, 5); | |
569 | if (slotnum == 1 && template_encoding_table[template][1] == L) | |
570 | { | |
571 | slotnum = 2; | |
572 | } | |
573 | ||
16461d7d KB |
574 | instr = slotN_contents (bundle, slotnum); |
575 | memcpy(contents_cache, &instr, sizeof(instr)); | |
aaab4dba | 576 | replace_slotN_contents (bundle, IA64_BREAKPOINT, slotnum); |
16461d7d KB |
577 | if (val == 0) |
578 | target_write_memory (addr, bundle, BUNDLE_LEN); | |
579 | ||
580 | return val; | |
581 | } | |
582 | ||
583 | static int | |
584 | ia64_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache) | |
585 | { | |
586 | char bundle[BUNDLE_LEN]; | |
587 | int slotnum = (addr & 0x0f) / SLOT_MULTIPLIER; | |
588 | long long instr; | |
589 | int val; | |
126fa72d | 590 | int template; |
16461d7d KB |
591 | |
592 | addr &= ~0x0f; | |
593 | ||
594 | val = target_read_memory (addr, bundle, BUNDLE_LEN); | |
126fa72d PS |
595 | |
596 | /* Check for L type instruction in 2nd slot, if present then | |
597 | bump up the slot number to the 3rd slot */ | |
598 | template = extract_bit_field (bundle, 0, 5); | |
599 | if (slotnum == 1 && template_encoding_table[template][1] == L) | |
600 | { | |
601 | slotnum = 2; | |
602 | } | |
603 | ||
16461d7d KB |
604 | memcpy (&instr, contents_cache, sizeof instr); |
605 | replace_slotN_contents (bundle, instr, slotnum); | |
606 | if (val == 0) | |
607 | target_write_memory (addr, bundle, BUNDLE_LEN); | |
608 | ||
609 | return val; | |
610 | } | |
611 | ||
612 | /* We don't really want to use this, but remote.c needs to call it in order | |
613 | to figure out if Z-packets are supported or not. Oh, well. */ | |
f4f9705a | 614 | const unsigned char * |
fba45db2 | 615 | ia64_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr) |
16461d7d KB |
616 | { |
617 | static unsigned char breakpoint[] = | |
618 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
619 | *lenptr = sizeof (breakpoint); | |
620 | #if 0 | |
621 | *pcptr &= ~0x0f; | |
622 | #endif | |
623 | return breakpoint; | |
624 | } | |
625 | ||
626 | CORE_ADDR | |
39f77062 | 627 | ia64_read_pc (ptid_t ptid) |
16461d7d | 628 | { |
39f77062 KB |
629 | CORE_ADDR psr_value = read_register_pid (IA64_PSR_REGNUM, ptid); |
630 | CORE_ADDR pc_value = read_register_pid (IA64_IP_REGNUM, ptid); | |
16461d7d KB |
631 | int slot_num = (psr_value >> 41) & 3; |
632 | ||
633 | return pc_value | (slot_num * SLOT_MULTIPLIER); | |
634 | } | |
635 | ||
636 | void | |
39f77062 | 637 | ia64_write_pc (CORE_ADDR new_pc, ptid_t ptid) |
16461d7d KB |
638 | { |
639 | int slot_num = (int) (new_pc & 0xf) / SLOT_MULTIPLIER; | |
39f77062 | 640 | CORE_ADDR psr_value = read_register_pid (IA64_PSR_REGNUM, ptid); |
16461d7d KB |
641 | psr_value &= ~(3LL << 41); |
642 | psr_value |= (CORE_ADDR)(slot_num & 0x3) << 41; | |
643 | ||
644 | new_pc &= ~0xfLL; | |
645 | ||
39f77062 KB |
646 | write_register_pid (IA64_PSR_REGNUM, psr_value, ptid); |
647 | write_register_pid (IA64_IP_REGNUM, new_pc, ptid); | |
16461d7d KB |
648 | } |
649 | ||
650 | #define IS_NaT_COLLECTION_ADDR(addr) ((((addr) >> 3) & 0x3f) == 0x3f) | |
651 | ||
652 | /* Returns the address of the slot that's NSLOTS slots away from | |
653 | the address ADDR. NSLOTS may be positive or negative. */ | |
654 | static CORE_ADDR | |
655 | rse_address_add(CORE_ADDR addr, int nslots) | |
656 | { | |
657 | CORE_ADDR new_addr; | |
658 | int mandatory_nat_slots = nslots / 63; | |
659 | int direction = nslots < 0 ? -1 : 1; | |
660 | ||
661 | new_addr = addr + 8 * (nslots + mandatory_nat_slots); | |
662 | ||
663 | if ((new_addr >> 9) != ((addr + 8 * 64 * mandatory_nat_slots) >> 9)) | |
664 | new_addr += 8 * direction; | |
665 | ||
666 | if (IS_NaT_COLLECTION_ADDR(new_addr)) | |
667 | new_addr += 8 * direction; | |
668 | ||
669 | return new_addr; | |
670 | } | |
671 | ||
672 | /* The IA-64 frame chain is a bit odd. We won't always have a frame | |
673 | pointer, so we use the SP value as the FP for the purpose of | |
674 | creating a frame. There is sometimes a register (not fixed) which | |
675 | is used as a frame pointer. When this register exists, it is not | |
676 | especially hard to determine which one is being used. It isn't | |
677 | even really hard to compute the frame chain, but it can be | |
678 | computationally expensive. So, instead of making life difficult | |
679 | (and slow), we pick a more convenient representation of the frame | |
8227c0ff | 680 | chain, knowing that we'll have to make some small adjustments in |
0ba6dca9 AC |
681 | other places. (E.g, note that deprecated_read_fp() is actually |
682 | read_sp() in ia64_gdbarch_init() below.) | |
16461d7d KB |
683 | |
684 | Okay, so what is the frame chain exactly? It'll be the SP value | |
685 | at the time that the function in question was entered. | |
686 | ||
687 | Note that this *should* actually the frame pointer for the current | |
688 | function! But as I note above, if we were to attempt to find the | |
689 | address of the beginning of the previous frame, we'd waste a lot | |
690 | of cycles for no good reason. So instead, we simply choose to | |
691 | represent the frame chain as the end of the previous frame instead | |
692 | of the beginning. */ | |
693 | ||
694 | CORE_ADDR | |
695 | ia64_frame_chain (struct frame_info *frame) | |
696 | { | |
5a203e44 | 697 | if ((get_frame_type (frame) == SIGTRAMP_FRAME)) |
244bc108 | 698 | return read_sigcontext_register (frame, sp_regnum); |
1e2330ba AC |
699 | else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), |
700 | get_frame_base (frame), | |
701 | get_frame_base (frame))) | |
702 | return get_frame_base (frame); | |
16461d7d | 703 | else |
244bc108 | 704 | { |
f30ee0bc | 705 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
b2fb4676 AC |
706 | if (get_frame_saved_regs (frame)[IA64_VFP_REGNUM]) |
707 | return read_memory_integer (get_frame_saved_regs (frame)[IA64_VFP_REGNUM], 8); | |
244bc108 | 708 | else |
1e2330ba | 709 | return (get_frame_base (frame) |
da50a4b7 | 710 | + get_frame_extra_info (frame)->mem_stack_frame_size); |
244bc108 | 711 | } |
16461d7d KB |
712 | } |
713 | ||
714 | CORE_ADDR | |
715 | ia64_frame_saved_pc (struct frame_info *frame) | |
716 | { | |
5a203e44 | 717 | if ((get_frame_type (frame) == SIGTRAMP_FRAME)) |
244bc108 | 718 | return read_sigcontext_register (frame, pc_regnum); |
1e2330ba AC |
719 | else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), |
720 | get_frame_base (frame), | |
721 | get_frame_base (frame))) | |
722 | return deprecated_read_register_dummy (get_frame_pc (frame), | |
723 | get_frame_base (frame), pc_regnum); | |
244bc108 KB |
724 | else |
725 | { | |
f30ee0bc | 726 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
16461d7d | 727 | |
b2fb4676 AC |
728 | if (get_frame_saved_regs (frame)[IA64_VRAP_REGNUM]) |
729 | return read_memory_integer (get_frame_saved_regs (frame)[IA64_VRAP_REGNUM], 8); | |
11c02a10 AC |
730 | else if (get_next_frame (frame) |
731 | && (get_frame_type (get_next_frame (frame)) == SIGTRAMP_FRAME)) | |
732 | return read_sigcontext_register (get_next_frame (frame), IA64_BR0_REGNUM); | |
244bc108 KB |
733 | else /* either frameless, or not far enough along in the prologue... */ |
734 | return ia64_saved_pc_after_call (frame); | |
735 | } | |
16461d7d KB |
736 | } |
737 | ||
58ab00f9 KB |
738 | /* Limit the number of skipped non-prologue instructions since examining |
739 | of the prologue is expensive. */ | |
5ea2bd7f | 740 | static int max_skip_non_prologue_insns = 40; |
58ab00f9 KB |
741 | |
742 | /* Given PC representing the starting address of a function, and | |
743 | LIM_PC which is the (sloppy) limit to which to scan when looking | |
744 | for a prologue, attempt to further refine this limit by using | |
745 | the line data in the symbol table. If successful, a better guess | |
746 | on where the prologue ends is returned, otherwise the previous | |
747 | value of lim_pc is returned. TRUST_LIMIT is a pointer to a flag | |
748 | which will be set to indicate whether the returned limit may be | |
749 | used with no further scanning in the event that the function is | |
750 | frameless. */ | |
751 | ||
752 | static CORE_ADDR | |
753 | refine_prologue_limit (CORE_ADDR pc, CORE_ADDR lim_pc, int *trust_limit) | |
754 | { | |
755 | struct symtab_and_line prologue_sal; | |
756 | CORE_ADDR start_pc = pc; | |
757 | ||
758 | /* Start off not trusting the limit. */ | |
759 | *trust_limit = 0; | |
760 | ||
761 | prologue_sal = find_pc_line (pc, 0); | |
762 | if (prologue_sal.line != 0) | |
763 | { | |
764 | int i; | |
765 | CORE_ADDR addr = prologue_sal.end; | |
766 | ||
767 | /* Handle the case in which compiler's optimizer/scheduler | |
768 | has moved instructions into the prologue. We scan ahead | |
769 | in the function looking for address ranges whose corresponding | |
770 | line number is less than or equal to the first one that we | |
771 | found for the function. (It can be less than when the | |
772 | scheduler puts a body instruction before the first prologue | |
773 | instruction.) */ | |
774 | for (i = 2 * max_skip_non_prologue_insns; | |
775 | i > 0 && (lim_pc == 0 || addr < lim_pc); | |
776 | i--) | |
777 | { | |
778 | struct symtab_and_line sal; | |
779 | ||
780 | sal = find_pc_line (addr, 0); | |
781 | if (sal.line == 0) | |
782 | break; | |
783 | if (sal.line <= prologue_sal.line | |
784 | && sal.symtab == prologue_sal.symtab) | |
785 | { | |
786 | prologue_sal = sal; | |
787 | } | |
788 | addr = sal.end; | |
789 | } | |
790 | ||
791 | if (lim_pc == 0 || prologue_sal.end < lim_pc) | |
792 | { | |
793 | lim_pc = prologue_sal.end; | |
794 | if (start_pc == get_pc_function_start (lim_pc)) | |
795 | *trust_limit = 1; | |
796 | } | |
797 | } | |
798 | return lim_pc; | |
799 | } | |
800 | ||
16461d7d KB |
801 | #define isScratch(_regnum_) ((_regnum_) == 2 || (_regnum_) == 3 \ |
802 | || (8 <= (_regnum_) && (_regnum_) <= 11) \ | |
803 | || (14 <= (_regnum_) && (_regnum_) <= 31)) | |
804 | #define imm9(_instr_) \ | |
805 | ( ((((_instr_) & 0x01000000000LL) ? -1 : 0) << 8) \ | |
806 | | (((_instr_) & 0x00008000000LL) >> 20) \ | |
807 | | (((_instr_) & 0x00000001fc0LL) >> 6)) | |
808 | ||
809 | static CORE_ADDR | |
810 | examine_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct frame_info *frame) | |
811 | { | |
812 | CORE_ADDR next_pc; | |
813 | CORE_ADDR last_prologue_pc = pc; | |
16461d7d KB |
814 | instruction_type it; |
815 | long long instr; | |
816 | int do_fsr_stuff = 0; | |
817 | ||
818 | int cfm_reg = 0; | |
819 | int ret_reg = 0; | |
820 | int fp_reg = 0; | |
821 | int unat_save_reg = 0; | |
822 | int pr_save_reg = 0; | |
823 | int mem_stack_frame_size = 0; | |
824 | int spill_reg = 0; | |
825 | CORE_ADDR spill_addr = 0; | |
0927a22b KB |
826 | char instores[8]; |
827 | char infpstores[8]; | |
5ea2bd7f | 828 | char reg_contents[256]; |
58ab00f9 | 829 | int trust_limit; |
5ea2bd7f | 830 | int frameless = 0; |
0927a22b KB |
831 | |
832 | memset (instores, 0, sizeof instores); | |
833 | memset (infpstores, 0, sizeof infpstores); | |
5ea2bd7f | 834 | memset (reg_contents, 0, sizeof reg_contents); |
16461d7d | 835 | |
b2fb4676 | 836 | if (frame && !get_frame_saved_regs (frame)) |
16461d7d KB |
837 | { |
838 | frame_saved_regs_zalloc (frame); | |
839 | do_fsr_stuff = 1; | |
840 | } | |
841 | ||
842 | if (frame | |
843 | && !do_fsr_stuff | |
da50a4b7 AC |
844 | && get_frame_extra_info (frame)->after_prologue != 0 |
845 | && get_frame_extra_info (frame)->after_prologue <= lim_pc) | |
846 | return get_frame_extra_info (frame)->after_prologue; | |
16461d7d | 847 | |
58ab00f9 | 848 | lim_pc = refine_prologue_limit (pc, lim_pc, &trust_limit); |
16461d7d | 849 | next_pc = fetch_instruction (pc, &it, &instr); |
5ea2bd7f JJ |
850 | |
851 | /* We want to check if we have a recognizable function start before we | |
852 | look ahead for a prologue. */ | |
16461d7d KB |
853 | if (pc < lim_pc && next_pc |
854 | && it == M && ((instr & 0x1ee0000003fLL) == 0x02c00000000LL)) | |
855 | { | |
5ea2bd7f | 856 | /* alloc - start of a regular function. */ |
16461d7d KB |
857 | int sor = (int) ((instr & 0x00078000000LL) >> 27); |
858 | int sol = (int) ((instr & 0x00007f00000LL) >> 20); | |
859 | int sof = (int) ((instr & 0x000000fe000LL) >> 13); | |
860 | /* Okay, so sor, sol, and sof aren't used right now; but perhaps | |
861 | we could compare against the size given to us via the cfm as | |
862 | either a sanity check or possibly to see if the frame has been | |
863 | changed by a later alloc instruction... */ | |
864 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
865 | cfm_reg = rN; | |
866 | last_prologue_pc = next_pc; | |
867 | pc = next_pc; | |
868 | } | |
869 | else | |
58ab00f9 | 870 | { |
5ea2bd7f JJ |
871 | /* Look for a leaf routine. */ |
872 | if (pc < lim_pc && next_pc | |
873 | && (it == I || it == M) | |
874 | && ((instr & 0x1ee00000000LL) == 0x10800000000LL)) | |
875 | { | |
876 | /* adds rN = imm14, rM (or mov rN, rM when imm14 is 0) */ | |
877 | int imm = (int) ((((instr & 0x01000000000LL) ? -1 : 0) << 13) | |
878 | | ((instr & 0x001f8000000LL) >> 20) | |
879 | | ((instr & 0x000000fe000LL) >> 13)); | |
880 | int rM = (int) ((instr & 0x00007f00000LL) >> 20); | |
881 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
882 | int qp = (int) (instr & 0x0000000003fLL); | |
883 | if (qp == 0 && rN == 2 && imm == 0 && rM == 12 && fp_reg == 0) | |
884 | { | |
885 | /* mov r2, r12 - beginning of leaf routine */ | |
886 | fp_reg = rN; | |
887 | frameless = 1; | |
888 | last_prologue_pc = next_pc; | |
889 | } | |
890 | } | |
891 | ||
892 | /* If we don't recognize a regular function or leaf routine, we are | |
893 | done. */ | |
894 | if (!fp_reg) | |
895 | { | |
896 | pc = lim_pc; | |
897 | if (trust_limit) | |
898 | last_prologue_pc = lim_pc; | |
899 | } | |
58ab00f9 | 900 | } |
16461d7d KB |
901 | |
902 | /* Loop, looking for prologue instructions, keeping track of | |
903 | where preserved registers were spilled. */ | |
904 | while (pc < lim_pc) | |
905 | { | |
906 | next_pc = fetch_instruction (pc, &it, &instr); | |
907 | if (next_pc == 0) | |
908 | break; | |
909 | ||
902d7086 KB |
910 | if ((it == B && ((instr & 0x1e1f800003f) != 0x04000000000)) |
911 | || ((instr & 0x3fLL) != 0LL)) | |
0927a22b | 912 | { |
902d7086 KB |
913 | /* Exit loop upon hitting a non-nop branch instruction |
914 | or a predicated instruction. */ | |
5ea2bd7f JJ |
915 | if (trust_limit) |
916 | lim_pc = pc; | |
0927a22b KB |
917 | break; |
918 | } | |
919 | else if (it == I && ((instr & 0x1eff8000000LL) == 0x00188000000LL)) | |
16461d7d KB |
920 | { |
921 | /* Move from BR */ | |
922 | int b2 = (int) ((instr & 0x0000000e000LL) >> 13); | |
923 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
924 | int qp = (int) (instr & 0x0000000003f); | |
925 | ||
926 | if (qp == 0 && b2 == 0 && rN >= 32 && ret_reg == 0) | |
927 | { | |
928 | ret_reg = rN; | |
929 | last_prologue_pc = next_pc; | |
930 | } | |
931 | } | |
932 | else if ((it == I || it == M) | |
933 | && ((instr & 0x1ee00000000LL) == 0x10800000000LL)) | |
934 | { | |
935 | /* adds rN = imm14, rM (or mov rN, rM when imm14 is 0) */ | |
936 | int imm = (int) ((((instr & 0x01000000000LL) ? -1 : 0) << 13) | |
937 | | ((instr & 0x001f8000000LL) >> 20) | |
938 | | ((instr & 0x000000fe000LL) >> 13)); | |
939 | int rM = (int) ((instr & 0x00007f00000LL) >> 20); | |
940 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
941 | int qp = (int) (instr & 0x0000000003fLL); | |
942 | ||
943 | if (qp == 0 && rN >= 32 && imm == 0 && rM == 12 && fp_reg == 0) | |
944 | { | |
945 | /* mov rN, r12 */ | |
946 | fp_reg = rN; | |
947 | last_prologue_pc = next_pc; | |
948 | } | |
949 | else if (qp == 0 && rN == 12 && rM == 12) | |
950 | { | |
951 | /* adds r12, -mem_stack_frame_size, r12 */ | |
952 | mem_stack_frame_size -= imm; | |
953 | last_prologue_pc = next_pc; | |
954 | } | |
955 | else if (qp == 0 && rN == 2 | |
956 | && ((rM == fp_reg && fp_reg != 0) || rM == 12)) | |
957 | { | |
958 | /* adds r2, spilloffset, rFramePointer | |
959 | or | |
960 | adds r2, spilloffset, r12 | |
961 | ||
962 | Get ready for stf.spill or st8.spill instructions. | |
963 | The address to start spilling at is loaded into r2. | |
964 | FIXME: Why r2? That's what gcc currently uses; it | |
965 | could well be different for other compilers. */ | |
966 | ||
967 | /* Hmm... whether or not this will work will depend on | |
968 | where the pc is. If it's still early in the prologue | |
969 | this'll be wrong. FIXME */ | |
1e2330ba | 970 | spill_addr = (frame ? get_frame_base (frame) : 0) |
16461d7d KB |
971 | + (rM == 12 ? 0 : mem_stack_frame_size) |
972 | + imm; | |
973 | spill_reg = rN; | |
974 | last_prologue_pc = next_pc; | |
975 | } | |
5ea2bd7f JJ |
976 | else if (qp == 0 && rM >= 32 && rM < 40 && !instores[rM] && |
977 | rN < 256 && imm == 0) | |
978 | { | |
979 | /* mov rN, rM where rM is an input register */ | |
980 | reg_contents[rN] = rM; | |
981 | last_prologue_pc = next_pc; | |
982 | } | |
983 | else if (frameless && qp == 0 && rN == fp_reg && imm == 0 && | |
984 | rM == 2) | |
985 | { | |
986 | /* mov r12, r2 */ | |
987 | last_prologue_pc = next_pc; | |
988 | break; | |
989 | } | |
16461d7d KB |
990 | } |
991 | else if (it == M | |
992 | && ( ((instr & 0x1efc0000000LL) == 0x0eec0000000LL) | |
993 | || ((instr & 0x1ffc8000000LL) == 0x0cec0000000LL) )) | |
994 | { | |
995 | /* stf.spill [rN] = fM, imm9 | |
996 | or | |
997 | stf.spill [rN] = fM */ | |
998 | ||
999 | int imm = imm9(instr); | |
1000 | int rN = (int) ((instr & 0x00007f00000LL) >> 20); | |
1001 | int fM = (int) ((instr & 0x000000fe000LL) >> 13); | |
1002 | int qp = (int) (instr & 0x0000000003fLL); | |
1003 | if (qp == 0 && rN == spill_reg && spill_addr != 0 | |
1004 | && ((2 <= fM && fM <= 5) || (16 <= fM && fM <= 31))) | |
1005 | { | |
1006 | if (do_fsr_stuff) | |
b2fb4676 | 1007 | get_frame_saved_regs (frame)[IA64_FR0_REGNUM + fM] = spill_addr; |
16461d7d KB |
1008 | |
1009 | if ((instr & 0x1efc0000000) == 0x0eec0000000) | |
1010 | spill_addr += imm; | |
1011 | else | |
1012 | spill_addr = 0; /* last one; must be done */ | |
1013 | last_prologue_pc = next_pc; | |
1014 | } | |
1015 | } | |
1016 | else if ((it == M && ((instr & 0x1eff8000000LL) == 0x02110000000LL)) | |
1017 | || (it == I && ((instr & 0x1eff8000000LL) == 0x00050000000LL)) ) | |
1018 | { | |
1019 | /* mov.m rN = arM | |
1020 | or | |
1021 | mov.i rN = arM */ | |
1022 | ||
1023 | int arM = (int) ((instr & 0x00007f00000LL) >> 20); | |
1024 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
1025 | int qp = (int) (instr & 0x0000000003fLL); | |
1026 | if (qp == 0 && isScratch (rN) && arM == 36 /* ar.unat */) | |
1027 | { | |
1028 | /* We have something like "mov.m r3 = ar.unat". Remember the | |
1029 | r3 (or whatever) and watch for a store of this register... */ | |
1030 | unat_save_reg = rN; | |
1031 | last_prologue_pc = next_pc; | |
1032 | } | |
1033 | } | |
1034 | else if (it == I && ((instr & 0x1eff8000000LL) == 0x00198000000LL)) | |
1035 | { | |
1036 | /* mov rN = pr */ | |
1037 | int rN = (int) ((instr & 0x00000001fc0LL) >> 6); | |
1038 | int qp = (int) (instr & 0x0000000003fLL); | |
1039 | if (qp == 0 && isScratch (rN)) | |
1040 | { | |
1041 | pr_save_reg = rN; | |
1042 | last_prologue_pc = next_pc; | |
1043 | } | |
1044 | } | |
1045 | else if (it == M | |
1046 | && ( ((instr & 0x1ffc8000000LL) == 0x08cc0000000LL) | |
1047 | || ((instr & 0x1efc0000000LL) == 0x0acc0000000LL))) | |
1048 | { | |
1049 | /* st8 [rN] = rM | |
1050 | or | |
1051 | st8 [rN] = rM, imm9 */ | |
1052 | int rN = (int) ((instr & 0x00007f00000LL) >> 20); | |
1053 | int rM = (int) ((instr & 0x000000fe000LL) >> 13); | |
1054 | int qp = (int) (instr & 0x0000000003fLL); | |
5ea2bd7f | 1055 | int indirect = rM < 256 ? reg_contents[rM] : 0; |
16461d7d KB |
1056 | if (qp == 0 && rN == spill_reg && spill_addr != 0 |
1057 | && (rM == unat_save_reg || rM == pr_save_reg)) | |
1058 | { | |
1059 | /* We've found a spill of either the UNAT register or the PR | |
1060 | register. (Well, not exactly; what we've actually found is | |
1061 | a spill of the register that UNAT or PR was moved to). | |
1062 | Record that fact and move on... */ | |
1063 | if (rM == unat_save_reg) | |
1064 | { | |
1065 | /* Track UNAT register */ | |
1066 | if (do_fsr_stuff) | |
b2fb4676 | 1067 | get_frame_saved_regs (frame)[IA64_UNAT_REGNUM] = spill_addr; |
16461d7d KB |
1068 | unat_save_reg = 0; |
1069 | } | |
1070 | else | |
1071 | { | |
1072 | /* Track PR register */ | |
1073 | if (do_fsr_stuff) | |
b2fb4676 | 1074 | get_frame_saved_regs (frame)[IA64_PR_REGNUM] = spill_addr; |
16461d7d KB |
1075 | pr_save_reg = 0; |
1076 | } | |
1077 | if ((instr & 0x1efc0000000LL) == 0x0acc0000000LL) | |
1078 | /* st8 [rN] = rM, imm9 */ | |
1079 | spill_addr += imm9(instr); | |
1080 | else | |
1081 | spill_addr = 0; /* must be done spilling */ | |
1082 | last_prologue_pc = next_pc; | |
1083 | } | |
0927a22b KB |
1084 | else if (qp == 0 && 32 <= rM && rM < 40 && !instores[rM-32]) |
1085 | { | |
1086 | /* Allow up to one store of each input register. */ | |
1087 | instores[rM-32] = 1; | |
1088 | last_prologue_pc = next_pc; | |
1089 | } | |
5ea2bd7f JJ |
1090 | else if (qp == 0 && 32 <= indirect && indirect < 40 && |
1091 | !instores[indirect-32]) | |
1092 | { | |
1093 | /* Allow an indirect store of an input register. */ | |
1094 | instores[indirect-32] = 1; | |
1095 | last_prologue_pc = next_pc; | |
1096 | } | |
0927a22b KB |
1097 | } |
1098 | else if (it == M && ((instr & 0x1ff08000000LL) == 0x08c00000000LL)) | |
1099 | { | |
1100 | /* One of | |
1101 | st1 [rN] = rM | |
1102 | st2 [rN] = rM | |
1103 | st4 [rN] = rM | |
1104 | st8 [rN] = rM | |
1105 | Note that the st8 case is handled in the clause above. | |
1106 | ||
1107 | Advance over stores of input registers. One store per input | |
1108 | register is permitted. */ | |
1109 | int rM = (int) ((instr & 0x000000fe000LL) >> 13); | |
1110 | int qp = (int) (instr & 0x0000000003fLL); | |
5ea2bd7f | 1111 | int indirect = rM < 256 ? reg_contents[rM] : 0; |
0927a22b KB |
1112 | if (qp == 0 && 32 <= rM && rM < 40 && !instores[rM-32]) |
1113 | { | |
1114 | instores[rM-32] = 1; | |
1115 | last_prologue_pc = next_pc; | |
1116 | } | |
5ea2bd7f JJ |
1117 | else if (qp == 0 && 32 <= indirect && indirect < 40 && |
1118 | !instores[indirect-32]) | |
1119 | { | |
1120 | /* Allow an indirect store of an input register. */ | |
1121 | instores[indirect-32] = 1; | |
1122 | last_prologue_pc = next_pc; | |
1123 | } | |
0927a22b KB |
1124 | } |
1125 | else if (it == M && ((instr & 0x1ff88000000LL) == 0x0cc80000000LL)) | |
1126 | { | |
1127 | /* Either | |
1128 | stfs [rN] = fM | |
1129 | or | |
1130 | stfd [rN] = fM | |
1131 | ||
1132 | Advance over stores of floating point input registers. Again | |
1133 | one store per register is permitted */ | |
1134 | int fM = (int) ((instr & 0x000000fe000LL) >> 13); | |
1135 | int qp = (int) (instr & 0x0000000003fLL); | |
1136 | if (qp == 0 && 8 <= fM && fM < 16 && !infpstores[fM - 8]) | |
1137 | { | |
1138 | infpstores[fM-8] = 1; | |
1139 | last_prologue_pc = next_pc; | |
1140 | } | |
16461d7d KB |
1141 | } |
1142 | else if (it == M | |
1143 | && ( ((instr & 0x1ffc8000000LL) == 0x08ec0000000LL) | |
1144 | || ((instr & 0x1efc0000000LL) == 0x0aec0000000LL))) | |
1145 | { | |
1146 | /* st8.spill [rN] = rM | |
1147 | or | |
1148 | st8.spill [rN] = rM, imm9 */ | |
1149 | int rN = (int) ((instr & 0x00007f00000LL) >> 20); | |
1150 | int rM = (int) ((instr & 0x000000fe000LL) >> 13); | |
1151 | int qp = (int) (instr & 0x0000000003fLL); | |
1152 | if (qp == 0 && rN == spill_reg && 4 <= rM && rM <= 7) | |
1153 | { | |
1154 | /* We've found a spill of one of the preserved general purpose | |
1155 | regs. Record the spill address and advance the spill | |
1156 | register if appropriate. */ | |
1157 | if (do_fsr_stuff) | |
b2fb4676 | 1158 | get_frame_saved_regs (frame)[IA64_GR0_REGNUM + rM] = spill_addr; |
16461d7d KB |
1159 | if ((instr & 0x1efc0000000LL) == 0x0aec0000000LL) |
1160 | /* st8.spill [rN] = rM, imm9 */ | |
1161 | spill_addr += imm9(instr); | |
1162 | else | |
1163 | spill_addr = 0; /* Done spilling */ | |
1164 | last_prologue_pc = next_pc; | |
1165 | } | |
1166 | } | |
16461d7d KB |
1167 | |
1168 | pc = next_pc; | |
1169 | } | |
1170 | ||
1171 | if (do_fsr_stuff) { | |
1172 | int i; | |
1173 | CORE_ADDR addr; | |
3a854e23 KB |
1174 | int sor, rrb_gr; |
1175 | ||
1176 | /* Extract the size of the rotating portion of the stack | |
1177 | frame and the register rename base from the current | |
1178 | frame marker. */ | |
da50a4b7 AC |
1179 | sor = ((get_frame_extra_info (frame)->cfm >> 14) & 0xf) * 8; |
1180 | rrb_gr = (get_frame_extra_info (frame)->cfm >> 18) & 0x7f; | |
16461d7d | 1181 | |
da50a4b7 AC |
1182 | for (i = 0, addr = get_frame_extra_info (frame)->bsp; |
1183 | i < get_frame_extra_info (frame)->sof; | |
16461d7d KB |
1184 | i++, addr += 8) |
1185 | { | |
1186 | if (IS_NaT_COLLECTION_ADDR (addr)) | |
1187 | { | |
1188 | addr += 8; | |
1189 | } | |
3a854e23 | 1190 | if (i < sor) |
b2fb4676 | 1191 | get_frame_saved_regs (frame)[IA64_GR32_REGNUM + ((i + (sor - rrb_gr)) % sor)] |
3a854e23 KB |
1192 | = addr; |
1193 | else | |
b2fb4676 | 1194 | get_frame_saved_regs (frame)[IA64_GR32_REGNUM + i] = addr; |
16461d7d KB |
1195 | |
1196 | if (i+32 == cfm_reg) | |
b2fb4676 | 1197 | get_frame_saved_regs (frame)[IA64_CFM_REGNUM] = addr; |
16461d7d | 1198 | if (i+32 == ret_reg) |
b2fb4676 | 1199 | get_frame_saved_regs (frame)[IA64_VRAP_REGNUM] = addr; |
16461d7d | 1200 | if (i+32 == fp_reg) |
b2fb4676 | 1201 | get_frame_saved_regs (frame)[IA64_VFP_REGNUM] = addr; |
16461d7d KB |
1202 | } |
1203 | } | |
1204 | ||
da50a4b7 AC |
1205 | if (frame && get_frame_extra_info (frame)) |
1206 | { | |
1207 | get_frame_extra_info (frame)->after_prologue = last_prologue_pc; | |
1208 | get_frame_extra_info (frame)->mem_stack_frame_size = mem_stack_frame_size; | |
1209 | get_frame_extra_info (frame)->fp_reg = fp_reg; | |
1210 | } | |
16461d7d | 1211 | |
5ea2bd7f JJ |
1212 | /* Try and trust the lim_pc value whenever possible. */ |
1213 | if (trust_limit && lim_pc >= last_prologue_pc) | |
1214 | return lim_pc; | |
1215 | ||
16461d7d KB |
1216 | return last_prologue_pc; |
1217 | } | |
1218 | ||
1219 | CORE_ADDR | |
1220 | ia64_skip_prologue (CORE_ADDR pc) | |
1221 | { | |
1222 | return examine_prologue (pc, pc+1024, 0); | |
1223 | } | |
1224 | ||
1225 | void | |
1226 | ia64_frame_init_saved_regs (struct frame_info *frame) | |
1227 | { | |
b2fb4676 | 1228 | if (get_frame_saved_regs (frame)) |
16461d7d KB |
1229 | return; |
1230 | ||
5a203e44 | 1231 | if ((get_frame_type (frame) == SIGTRAMP_FRAME) && SIGCONTEXT_REGISTER_ADDRESS) |
244bc108 KB |
1232 | { |
1233 | int regno; | |
16461d7d | 1234 | |
244bc108 | 1235 | frame_saved_regs_zalloc (frame); |
16461d7d | 1236 | |
b2fb4676 | 1237 | get_frame_saved_regs (frame)[IA64_VRAP_REGNUM] = |
1e2330ba | 1238 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_IP_REGNUM); |
b2fb4676 | 1239 | get_frame_saved_regs (frame)[IA64_CFM_REGNUM] = |
1e2330ba | 1240 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_CFM_REGNUM); |
b2fb4676 | 1241 | get_frame_saved_regs (frame)[IA64_PSR_REGNUM] = |
1e2330ba | 1242 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_PSR_REGNUM); |
244bc108 | 1243 | #if 0 |
b2fb4676 | 1244 | get_frame_saved_regs (frame)[IA64_BSP_REGNUM] = |
244bc108 KB |
1245 | SIGCONTEXT_REGISTER_ADDRESS (frame->frame, IA64_BSP_REGNUM); |
1246 | #endif | |
b2fb4676 | 1247 | get_frame_saved_regs (frame)[IA64_RNAT_REGNUM] = |
1e2330ba | 1248 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_RNAT_REGNUM); |
b2fb4676 | 1249 | get_frame_saved_regs (frame)[IA64_CCV_REGNUM] = |
1e2330ba | 1250 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_CCV_REGNUM); |
b2fb4676 | 1251 | get_frame_saved_regs (frame)[IA64_UNAT_REGNUM] = |
1e2330ba | 1252 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_UNAT_REGNUM); |
b2fb4676 | 1253 | get_frame_saved_regs (frame)[IA64_FPSR_REGNUM] = |
1e2330ba | 1254 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_FPSR_REGNUM); |
b2fb4676 | 1255 | get_frame_saved_regs (frame)[IA64_PFS_REGNUM] = |
1e2330ba | 1256 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_PFS_REGNUM); |
b2fb4676 | 1257 | get_frame_saved_regs (frame)[IA64_LC_REGNUM] = |
1e2330ba | 1258 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), IA64_LC_REGNUM); |
244bc108 KB |
1259 | for (regno = IA64_GR1_REGNUM; regno <= IA64_GR31_REGNUM; regno++) |
1260 | if (regno != sp_regnum) | |
b2fb4676 | 1261 | get_frame_saved_regs (frame)[regno] = |
1e2330ba | 1262 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), regno); |
244bc108 | 1263 | for (regno = IA64_BR0_REGNUM; regno <= IA64_BR7_REGNUM; regno++) |
b2fb4676 | 1264 | get_frame_saved_regs (frame)[regno] = |
1e2330ba | 1265 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), regno); |
244bc108 | 1266 | for (regno = IA64_FR2_REGNUM; regno <= IA64_BR7_REGNUM; regno++) |
b2fb4676 | 1267 | get_frame_saved_regs (frame)[regno] = |
1e2330ba | 1268 | SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), regno); |
16461d7d KB |
1269 | } |
1270 | else | |
1271 | { | |
244bc108 | 1272 | CORE_ADDR func_start; |
16461d7d | 1273 | |
be41e9f4 | 1274 | func_start = get_frame_func (frame); |
50abf9e5 | 1275 | examine_prologue (func_start, get_frame_pc (frame), frame); |
244bc108 | 1276 | } |
16461d7d KB |
1277 | } |
1278 | ||
1279 | void | |
1280 | ia64_get_saved_register (char *raw_buffer, | |
1281 | int *optimized, | |
1282 | CORE_ADDR *addrp, | |
1283 | struct frame_info *frame, | |
1284 | int regnum, | |
1285 | enum lval_type *lval) | |
1286 | { | |
244bc108 | 1287 | int is_dummy_frame; |
16461d7d KB |
1288 | |
1289 | if (!target_has_registers) | |
1290 | error ("No registers."); | |
1291 | ||
1292 | if (optimized != NULL) | |
1293 | *optimized = 0; | |
244bc108 KB |
1294 | |
1295 | if (addrp != NULL) | |
1296 | *addrp = 0; | |
1297 | ||
1298 | if (lval != NULL) | |
1299 | *lval = not_lval; | |
1300 | ||
1e2330ba AC |
1301 | is_dummy_frame = DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), |
1302 | get_frame_base (frame), | |
1303 | get_frame_base (frame)); | |
244bc108 | 1304 | |
11c02a10 | 1305 | if (regnum == SP_REGNUM && get_next_frame (frame)) |
16461d7d KB |
1306 | { |
1307 | /* Handle SP values for all frames but the topmost. */ | |
fbd9dcd3 AC |
1308 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (regnum), |
1309 | get_frame_base (frame)); | |
16461d7d KB |
1310 | } |
1311 | else if (regnum == IA64_BSP_REGNUM) | |
1312 | { | |
fbd9dcd3 AC |
1313 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (regnum), |
1314 | get_frame_extra_info (frame)->bsp); | |
16461d7d KB |
1315 | } |
1316 | else if (regnum == IA64_VFP_REGNUM) | |
1317 | { | |
1318 | /* If the function in question uses an automatic register (r32-r127) | |
1319 | for the frame pointer, it'll be found by ia64_find_saved_register() | |
1320 | above. If the function lacks one of these frame pointers, we can | |
1321 | still provide a value since we know the size of the frame */ | |
1e2330ba | 1322 | CORE_ADDR vfp = (get_frame_base (frame) |
da50a4b7 | 1323 | + get_frame_extra_info (frame)->mem_stack_frame_size); |
fbd9dcd3 | 1324 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (IA64_VFP_REGNUM), vfp); |
16461d7d KB |
1325 | } |
1326 | else if (IA64_PR0_REGNUM <= regnum && regnum <= IA64_PR63_REGNUM) | |
1327 | { | |
d9d9c31f | 1328 | char pr_raw_buffer[MAX_REGISTER_SIZE]; |
16461d7d KB |
1329 | int pr_optim; |
1330 | enum lval_type pr_lval; | |
1331 | CORE_ADDR pr_addr; | |
1332 | int prN_val; | |
1333 | ia64_get_saved_register (pr_raw_buffer, &pr_optim, &pr_addr, | |
1334 | frame, IA64_PR_REGNUM, &pr_lval); | |
3a854e23 KB |
1335 | if (IA64_PR16_REGNUM <= regnum && regnum <= IA64_PR63_REGNUM) |
1336 | { | |
1337 | /* Fetch predicate register rename base from current frame | |
1338 | marker for this frame. */ | |
da50a4b7 | 1339 | int rrb_pr = (get_frame_extra_info (frame)->cfm >> 32) & 0x3f; |
3a854e23 KB |
1340 | |
1341 | /* Adjust the register number to account for register rotation. */ | |
1342 | regnum = IA64_PR16_REGNUM | |
1343 | + ((regnum - IA64_PR16_REGNUM) + rrb_pr) % 48; | |
1344 | } | |
16461d7d KB |
1345 | prN_val = extract_bit_field ((unsigned char *) pr_raw_buffer, |
1346 | regnum - IA64_PR0_REGNUM, 1); | |
1347 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (regnum), prN_val); | |
16461d7d KB |
1348 | } |
1349 | else if (IA64_NAT0_REGNUM <= regnum && regnum <= IA64_NAT31_REGNUM) | |
1350 | { | |
d9d9c31f | 1351 | char unat_raw_buffer[MAX_REGISTER_SIZE]; |
16461d7d KB |
1352 | int unat_optim; |
1353 | enum lval_type unat_lval; | |
1354 | CORE_ADDR unat_addr; | |
1355 | int unatN_val; | |
1356 | ia64_get_saved_register (unat_raw_buffer, &unat_optim, &unat_addr, | |
1357 | frame, IA64_UNAT_REGNUM, &unat_lval); | |
1358 | unatN_val = extract_bit_field ((unsigned char *) unat_raw_buffer, | |
1359 | regnum - IA64_NAT0_REGNUM, 1); | |
1360 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (regnum), | |
1361 | unatN_val); | |
16461d7d KB |
1362 | } |
1363 | else if (IA64_NAT32_REGNUM <= regnum && regnum <= IA64_NAT127_REGNUM) | |
1364 | { | |
1365 | int natval = 0; | |
1366 | /* Find address of general register corresponding to nat bit we're | |
1367 | interested in. */ | |
244bc108 KB |
1368 | CORE_ADDR gr_addr = 0; |
1369 | ||
1370 | if (!is_dummy_frame) | |
1371 | { | |
f30ee0bc | 1372 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
b2fb4676 AC |
1373 | gr_addr = get_frame_saved_regs (frame)[ regnum - IA64_NAT0_REGNUM |
1374 | + IA64_GR0_REGNUM]; | |
244bc108 | 1375 | } |
16461d7d KB |
1376 | if (gr_addr) |
1377 | { | |
1378 | /* Compute address of nat collection bits */ | |
1379 | CORE_ADDR nat_addr = gr_addr | 0x1f8; | |
1380 | CORE_ADDR bsp = read_register (IA64_BSP_REGNUM); | |
1381 | CORE_ADDR nat_collection; | |
1382 | int nat_bit; | |
1383 | /* If our nat collection address is bigger than bsp, we have to get | |
1384 | the nat collection from rnat. Otherwise, we fetch the nat | |
1385 | collection from the computed address. */ | |
1386 | if (nat_addr >= bsp) | |
1387 | nat_collection = read_register (IA64_RNAT_REGNUM); | |
1388 | else | |
1389 | nat_collection = read_memory_integer (nat_addr, 8); | |
1390 | nat_bit = (gr_addr >> 3) & 0x3f; | |
1391 | natval = (nat_collection >> nat_bit) & 1; | |
1392 | } | |
1393 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (regnum), natval); | |
244bc108 KB |
1394 | } |
1395 | else if (regnum == IA64_IP_REGNUM) | |
1396 | { | |
1397 | CORE_ADDR pc; | |
11c02a10 | 1398 | if (get_next_frame (frame)) |
244bc108 KB |
1399 | { |
1400 | /* FIXME: Set *addrp, *lval when possible. */ | |
11c02a10 | 1401 | pc = ia64_frame_saved_pc (get_next_frame (frame)); |
244bc108 KB |
1402 | } |
1403 | else | |
1404 | { | |
1405 | pc = read_pc (); | |
1406 | } | |
fbd9dcd3 | 1407 | store_unsigned_integer (raw_buffer, REGISTER_RAW_SIZE (IA64_IP_REGNUM), pc); |
244bc108 KB |
1408 | } |
1409 | else if (IA64_GR32_REGNUM <= regnum && regnum <= IA64_GR127_REGNUM) | |
1410 | { | |
1411 | CORE_ADDR addr = 0; | |
1412 | if (!is_dummy_frame) | |
1413 | { | |
f30ee0bc | 1414 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
b2fb4676 | 1415 | addr = get_frame_saved_regs (frame)[regnum]; |
244bc108 KB |
1416 | } |
1417 | ||
1418 | if (addr != 0) | |
1419 | { | |
1420 | if (lval != NULL) | |
1421 | *lval = lval_memory; | |
1422 | if (addrp != NULL) | |
1423 | *addrp = addr; | |
1424 | read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum)); | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | /* r32 - r127 must be fetchable via memory. If they aren't, | |
1429 | then the register is unavailable */ | |
1430 | memset (raw_buffer, 0, REGISTER_RAW_SIZE (regnum)); | |
1431 | } | |
16461d7d KB |
1432 | } |
1433 | else | |
1434 | { | |
3a854e23 KB |
1435 | if (IA64_FR32_REGNUM <= regnum && regnum <= IA64_FR127_REGNUM) |
1436 | { | |
1437 | /* Fetch floating point register rename base from current | |
1438 | frame marker for this frame. */ | |
da50a4b7 | 1439 | int rrb_fr = (get_frame_extra_info (frame)->cfm >> 25) & 0x7f; |
3a854e23 KB |
1440 | |
1441 | /* Adjust the floating point register number to account for | |
1442 | register rotation. */ | |
1443 | regnum = IA64_FR32_REGNUM | |
1444 | + ((regnum - IA64_FR32_REGNUM) + rrb_fr) % 96; | |
1445 | } | |
1446 | ||
bdcdd535 AC |
1447 | deprecated_generic_get_saved_register (raw_buffer, optimized, addrp, |
1448 | frame, regnum, lval); | |
16461d7d | 1449 | } |
16461d7d KB |
1450 | } |
1451 | ||
1452 | /* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of | |
1453 | EXTRACT_RETURN_VALUE? GCC_P is true if compiled with gcc | |
1454 | and TYPE is the type (which is known to be struct, union or array). */ | |
1455 | int | |
1456 | ia64_use_struct_convention (int gcc_p, struct type *type) | |
1457 | { | |
64a5b29c KB |
1458 | struct type *float_elt_type; |
1459 | ||
1460 | /* HFAs are structures (or arrays) consisting entirely of floating | |
1461 | point values of the same length. Up to 8 of these are returned | |
1462 | in registers. Don't use the struct convention when this is the | |
1463 | case. */ | |
1464 | float_elt_type = is_float_or_hfa_type (type); | |
1465 | if (float_elt_type != NULL | |
1466 | && TYPE_LENGTH (type) / TYPE_LENGTH (float_elt_type) <= 8) | |
1467 | return 0; | |
1468 | ||
1469 | /* Other structs of length 32 or less are returned in r8-r11. | |
1470 | Don't use the struct convention for those either. */ | |
16461d7d KB |
1471 | return TYPE_LENGTH (type) > 32; |
1472 | } | |
1473 | ||
1474 | void | |
1475 | ia64_extract_return_value (struct type *type, char *regbuf, char *valbuf) | |
1476 | { | |
64a5b29c KB |
1477 | struct type *float_elt_type; |
1478 | ||
1479 | float_elt_type = is_float_or_hfa_type (type); | |
1480 | if (float_elt_type != NULL) | |
1481 | { | |
1482 | int offset = 0; | |
1483 | int regnum = IA64_FR8_REGNUM; | |
1484 | int n = TYPE_LENGTH (type) / TYPE_LENGTH (float_elt_type); | |
1485 | ||
1486 | while (n-- > 0) | |
1487 | { | |
1488 | ia64_register_convert_to_virtual (regnum, float_elt_type, | |
1489 | ®buf[REGISTER_BYTE (regnum)], valbuf + offset); | |
1490 | offset += TYPE_LENGTH (float_elt_type); | |
1491 | regnum++; | |
1492 | } | |
1493 | } | |
16461d7d | 1494 | else |
64a5b29c KB |
1495 | memcpy (valbuf, ®buf[REGISTER_BYTE (IA64_GR8_REGNUM)], |
1496 | TYPE_LENGTH (type)); | |
16461d7d KB |
1497 | } |
1498 | ||
1499 | /* FIXME: Turn this into a stack of some sort. Unfortunately, something | |
1500 | like this is necessary though since the IA-64 calling conventions specify | |
1501 | that r8 is not preserved. */ | |
1502 | static CORE_ADDR struct_return_address; | |
1503 | ||
1504 | CORE_ADDR | |
1505 | ia64_extract_struct_value_address (char *regbuf) | |
1506 | { | |
1507 | /* FIXME: See above. */ | |
1508 | return struct_return_address; | |
1509 | } | |
1510 | ||
1511 | void | |
1512 | ia64_store_struct_return (CORE_ADDR addr, CORE_ADDR sp) | |
1513 | { | |
1514 | /* FIXME: See above. */ | |
1515 | /* Note that most of the work was done in ia64_push_arguments() */ | |
1516 | struct_return_address = addr; | |
1517 | } | |
1518 | ||
1519 | int | |
1520 | ia64_frameless_function_invocation (struct frame_info *frame) | |
1521 | { | |
f30ee0bc | 1522 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
da50a4b7 | 1523 | return (get_frame_extra_info (frame)->mem_stack_frame_size == 0); |
16461d7d KB |
1524 | } |
1525 | ||
1526 | CORE_ADDR | |
1527 | ia64_saved_pc_after_call (struct frame_info *frame) | |
1528 | { | |
1529 | return read_register (IA64_BR0_REGNUM); | |
1530 | } | |
1531 | ||
1532 | CORE_ADDR | |
1533 | ia64_frame_args_address (struct frame_info *frame) | |
1534 | { | |
1535 | /* frame->frame points at the SP for this frame; But we want the start | |
1536 | of the frame, not the end. Calling frame chain will get his for us. */ | |
1537 | return ia64_frame_chain (frame); | |
1538 | } | |
1539 | ||
1540 | CORE_ADDR | |
1541 | ia64_frame_locals_address (struct frame_info *frame) | |
1542 | { | |
1543 | /* frame->frame points at the SP for this frame; But we want the start | |
1544 | of the frame, not the end. Calling frame chain will get his for us. */ | |
1545 | return ia64_frame_chain (frame); | |
1546 | } | |
1547 | ||
1548 | void | |
1549 | ia64_init_extra_frame_info (int fromleaf, struct frame_info *frame) | |
1550 | { | |
1551 | CORE_ADDR bsp, cfm; | |
11c02a10 AC |
1552 | int next_frame_is_call_dummy = ((get_next_frame (frame) != NULL) |
1553 | && DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (get_next_frame (frame)), | |
1554 | get_frame_base (get_next_frame (frame)), | |
1555 | get_frame_base (get_next_frame (frame)))); | |
16461d7d | 1556 | |
a00a19e9 | 1557 | frame_extra_info_zalloc (frame, sizeof (struct frame_extra_info)); |
16461d7d | 1558 | |
11c02a10 | 1559 | if (get_next_frame (frame) == 0) |
16461d7d KB |
1560 | { |
1561 | bsp = read_register (IA64_BSP_REGNUM); | |
1562 | cfm = read_register (IA64_CFM_REGNUM); | |
1563 | ||
1564 | } | |
11c02a10 | 1565 | else if ((get_frame_type (get_next_frame (frame)) == SIGTRAMP_FRAME)) |
244bc108 | 1566 | { |
11c02a10 AC |
1567 | bsp = read_sigcontext_register (get_next_frame (frame), IA64_BSP_REGNUM); |
1568 | cfm = read_sigcontext_register (get_next_frame (frame), IA64_CFM_REGNUM); | |
244bc108 KB |
1569 | } |
1570 | else if (next_frame_is_call_dummy) | |
1571 | { | |
11c02a10 AC |
1572 | bsp = deprecated_read_register_dummy (get_frame_pc (get_next_frame (frame)), |
1573 | get_frame_base (get_next_frame (frame)), | |
135c175f | 1574 | IA64_BSP_REGNUM); |
11c02a10 AC |
1575 | cfm = deprecated_read_register_dummy (get_frame_pc (get_next_frame (frame)), |
1576 | get_frame_base (get_next_frame (frame)), | |
135c175f | 1577 | IA64_CFM_REGNUM); |
244bc108 | 1578 | } |
16461d7d KB |
1579 | else |
1580 | { | |
11c02a10 | 1581 | struct frame_info *frn = get_next_frame (frame); |
16461d7d | 1582 | |
f30ee0bc | 1583 | DEPRECATED_FRAME_INIT_SAVED_REGS (frn); |
16461d7d | 1584 | |
b2fb4676 AC |
1585 | if (get_frame_saved_regs (frn)[IA64_CFM_REGNUM] != 0) |
1586 | cfm = read_memory_integer (get_frame_saved_regs (frn)[IA64_CFM_REGNUM], 8); | |
11c02a10 AC |
1587 | else if (get_next_frame (frn) && (get_frame_type (get_next_frame (frn)) == SIGTRAMP_FRAME)) |
1588 | cfm = read_sigcontext_register (get_next_frame (frn), IA64_PFS_REGNUM); | |
1589 | else if (get_next_frame (frn) | |
1590 | && DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (get_next_frame (frn)), | |
1591 | get_frame_base (get_next_frame (frn)), | |
1592 | get_frame_base (get_next_frame (frn)))) | |
1593 | cfm = deprecated_read_register_dummy (get_frame_pc (get_next_frame (frn)), | |
1594 | get_frame_base (get_next_frame (frn)), | |
135c175f | 1595 | IA64_PFS_REGNUM); |
16461d7d | 1596 | else |
76d689a6 | 1597 | cfm = read_register (IA64_PFS_REGNUM); |
16461d7d | 1598 | |
da50a4b7 | 1599 | bsp = get_frame_extra_info (frn)->bsp; |
16461d7d | 1600 | } |
da50a4b7 AC |
1601 | get_frame_extra_info (frame)->cfm = cfm; |
1602 | get_frame_extra_info (frame)->sof = cfm & 0x7f; | |
1603 | get_frame_extra_info (frame)->sol = (cfm >> 7) & 0x7f; | |
11c02a10 AC |
1604 | if (get_next_frame (frame) == 0 |
1605 | || (get_frame_type (get_next_frame (frame)) == SIGTRAMP_FRAME) | |
244bc108 | 1606 | || next_frame_is_call_dummy) |
da50a4b7 AC |
1607 | get_frame_extra_info (frame)->bsp = |
1608 | rse_address_add (bsp, -get_frame_extra_info (frame)->sof); | |
16461d7d | 1609 | else |
da50a4b7 AC |
1610 | get_frame_extra_info (frame)->bsp = |
1611 | rse_address_add (bsp, -get_frame_extra_info (frame)->sol); | |
16461d7d | 1612 | |
da50a4b7 AC |
1613 | get_frame_extra_info (frame)->after_prologue = 0; |
1614 | get_frame_extra_info (frame)->mem_stack_frame_size = -1; /* Not yet determined */ | |
1615 | get_frame_extra_info (frame)->fp_reg = 0; | |
16461d7d KB |
1616 | } |
1617 | ||
64a5b29c KB |
1618 | static int |
1619 | is_float_or_hfa_type_recurse (struct type *t, struct type **etp) | |
1620 | { | |
1621 | switch (TYPE_CODE (t)) | |
1622 | { | |
1623 | case TYPE_CODE_FLT: | |
1624 | if (*etp) | |
1625 | return TYPE_LENGTH (*etp) == TYPE_LENGTH (t); | |
1626 | else | |
1627 | { | |
1628 | *etp = t; | |
1629 | return 1; | |
1630 | } | |
1631 | break; | |
1632 | case TYPE_CODE_ARRAY: | |
98f96ba1 KB |
1633 | return |
1634 | is_float_or_hfa_type_recurse (check_typedef (TYPE_TARGET_TYPE (t)), | |
1635 | etp); | |
64a5b29c KB |
1636 | break; |
1637 | case TYPE_CODE_STRUCT: | |
1638 | { | |
1639 | int i; | |
1640 | ||
1641 | for (i = 0; i < TYPE_NFIELDS (t); i++) | |
98f96ba1 KB |
1642 | if (!is_float_or_hfa_type_recurse |
1643 | (check_typedef (TYPE_FIELD_TYPE (t, i)), etp)) | |
64a5b29c KB |
1644 | return 0; |
1645 | return 1; | |
1646 | } | |
1647 | break; | |
1648 | default: | |
1649 | return 0; | |
1650 | break; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | /* Determine if the given type is one of the floating point types or | |
1655 | and HFA (which is a struct, array, or combination thereof whose | |
1656 | bottom-most elements are all of the same floating point type.) */ | |
1657 | ||
1658 | static struct type * | |
1659 | is_float_or_hfa_type (struct type *t) | |
1660 | { | |
1661 | struct type *et = 0; | |
1662 | ||
1663 | return is_float_or_hfa_type_recurse (t, &et) ? et : 0; | |
1664 | } | |
1665 | ||
1666 | ||
98f96ba1 KB |
1667 | /* Return 1 if the alignment of T is such that the next even slot |
1668 | should be used. Return 0, if the next available slot should | |
1669 | be used. (See section 8.5.1 of the IA-64 Software Conventions | |
1670 | and Runtime manual.) */ | |
1671 | ||
1672 | static int | |
1673 | slot_alignment_is_next_even (struct type *t) | |
1674 | { | |
1675 | switch (TYPE_CODE (t)) | |
1676 | { | |
1677 | case TYPE_CODE_INT: | |
1678 | case TYPE_CODE_FLT: | |
1679 | if (TYPE_LENGTH (t) > 8) | |
1680 | return 1; | |
1681 | else | |
1682 | return 0; | |
1683 | case TYPE_CODE_ARRAY: | |
1684 | return | |
1685 | slot_alignment_is_next_even (check_typedef (TYPE_TARGET_TYPE (t))); | |
1686 | case TYPE_CODE_STRUCT: | |
1687 | { | |
1688 | int i; | |
1689 | ||
1690 | for (i = 0; i < TYPE_NFIELDS (t); i++) | |
1691 | if (slot_alignment_is_next_even | |
1692 | (check_typedef (TYPE_FIELD_TYPE (t, i)))) | |
1693 | return 1; | |
1694 | return 0; | |
1695 | } | |
1696 | default: | |
1697 | return 0; | |
1698 | } | |
1699 | } | |
1700 | ||
64a5b29c KB |
1701 | /* Attempt to find (and return) the global pointer for the given |
1702 | function. | |
1703 | ||
1704 | This is a rather nasty bit of code searchs for the .dynamic section | |
1705 | in the objfile corresponding to the pc of the function we're trying | |
1706 | to call. Once it finds the addresses at which the .dynamic section | |
1707 | lives in the child process, it scans the Elf64_Dyn entries for a | |
1708 | DT_PLTGOT tag. If it finds one of these, the corresponding | |
1709 | d_un.d_ptr value is the global pointer. */ | |
1710 | ||
1711 | static CORE_ADDR | |
698cb3f0 | 1712 | generic_elf_find_global_pointer (CORE_ADDR faddr) |
64a5b29c | 1713 | { |
76d689a6 | 1714 | struct obj_section *faddr_sect; |
64a5b29c | 1715 | |
76d689a6 KB |
1716 | faddr_sect = find_pc_section (faddr); |
1717 | if (faddr_sect != NULL) | |
64a5b29c KB |
1718 | { |
1719 | struct obj_section *osect; | |
1720 | ||
76d689a6 | 1721 | ALL_OBJFILE_OSECTIONS (faddr_sect->objfile, osect) |
64a5b29c KB |
1722 | { |
1723 | if (strcmp (osect->the_bfd_section->name, ".dynamic") == 0) | |
1724 | break; | |
1725 | } | |
1726 | ||
76d689a6 | 1727 | if (osect < faddr_sect->objfile->sections_end) |
64a5b29c KB |
1728 | { |
1729 | CORE_ADDR addr; | |
1730 | ||
1731 | addr = osect->addr; | |
1732 | while (addr < osect->endaddr) | |
1733 | { | |
1734 | int status; | |
1735 | LONGEST tag; | |
1736 | char buf[8]; | |
1737 | ||
1738 | status = target_read_memory (addr, buf, sizeof (buf)); | |
1739 | if (status != 0) | |
1740 | break; | |
1741 | tag = extract_signed_integer (buf, sizeof (buf)); | |
1742 | ||
1743 | if (tag == DT_PLTGOT) | |
1744 | { | |
1745 | CORE_ADDR global_pointer; | |
1746 | ||
1747 | status = target_read_memory (addr + 8, buf, sizeof (buf)); | |
1748 | if (status != 0) | |
1749 | break; | |
1750 | global_pointer = extract_address (buf, sizeof (buf)); | |
1751 | ||
1752 | /* The payoff... */ | |
1753 | return global_pointer; | |
1754 | } | |
1755 | ||
1756 | if (tag == DT_NULL) | |
1757 | break; | |
1758 | ||
1759 | addr += 16; | |
1760 | } | |
1761 | } | |
1762 | } | |
1763 | return 0; | |
1764 | } | |
1765 | ||
1766 | /* Given a function's address, attempt to find (and return) the | |
1767 | corresponding (canonical) function descriptor. Return 0 if | |
1768 | not found. */ | |
1769 | static CORE_ADDR | |
1770 | find_extant_func_descr (CORE_ADDR faddr) | |
1771 | { | |
76d689a6 | 1772 | struct obj_section *faddr_sect; |
64a5b29c KB |
1773 | |
1774 | /* Return early if faddr is already a function descriptor */ | |
76d689a6 KB |
1775 | faddr_sect = find_pc_section (faddr); |
1776 | if (faddr_sect && strcmp (faddr_sect->the_bfd_section->name, ".opd") == 0) | |
64a5b29c KB |
1777 | return faddr; |
1778 | ||
76d689a6 | 1779 | if (faddr_sect != NULL) |
64a5b29c | 1780 | { |
76d689a6 KB |
1781 | struct obj_section *osect; |
1782 | ALL_OBJFILE_OSECTIONS (faddr_sect->objfile, osect) | |
64a5b29c KB |
1783 | { |
1784 | if (strcmp (osect->the_bfd_section->name, ".opd") == 0) | |
1785 | break; | |
1786 | } | |
1787 | ||
76d689a6 | 1788 | if (osect < faddr_sect->objfile->sections_end) |
64a5b29c KB |
1789 | { |
1790 | CORE_ADDR addr; | |
1791 | ||
1792 | addr = osect->addr; | |
1793 | while (addr < osect->endaddr) | |
1794 | { | |
1795 | int status; | |
1796 | LONGEST faddr2; | |
1797 | char buf[8]; | |
1798 | ||
1799 | status = target_read_memory (addr, buf, sizeof (buf)); | |
1800 | if (status != 0) | |
1801 | break; | |
1802 | faddr2 = extract_signed_integer (buf, sizeof (buf)); | |
1803 | ||
1804 | if (faddr == faddr2) | |
1805 | return addr; | |
1806 | ||
1807 | addr += 16; | |
1808 | } | |
1809 | } | |
1810 | } | |
1811 | return 0; | |
1812 | } | |
1813 | ||
1814 | /* Attempt to find a function descriptor corresponding to the | |
1815 | given address. If none is found, construct one on the | |
1816 | stack using the address at fdaptr */ | |
1817 | ||
1818 | static CORE_ADDR | |
1819 | find_func_descr (CORE_ADDR faddr, CORE_ADDR *fdaptr) | |
1820 | { | |
1821 | CORE_ADDR fdesc; | |
1822 | ||
1823 | fdesc = find_extant_func_descr (faddr); | |
1824 | ||
1825 | if (fdesc == 0) | |
1826 | { | |
1827 | CORE_ADDR global_pointer; | |
1828 | char buf[16]; | |
1829 | ||
1830 | fdesc = *fdaptr; | |
1831 | *fdaptr += 16; | |
1832 | ||
698cb3f0 | 1833 | global_pointer = FIND_GLOBAL_POINTER (faddr); |
64a5b29c KB |
1834 | |
1835 | if (global_pointer == 0) | |
1836 | global_pointer = read_register (IA64_GR1_REGNUM); | |
1837 | ||
fbd9dcd3 AC |
1838 | store_unsigned_integer (buf, 8, faddr); |
1839 | store_unsigned_integer (buf + 8, 8, global_pointer); | |
64a5b29c KB |
1840 | |
1841 | write_memory (fdesc, buf, 16); | |
1842 | } | |
1843 | ||
1844 | return fdesc; | |
1845 | } | |
16461d7d KB |
1846 | |
1847 | CORE_ADDR | |
ea7c478f | 1848 | ia64_push_arguments (int nargs, struct value **args, CORE_ADDR sp, |
16461d7d KB |
1849 | int struct_return, CORE_ADDR struct_addr) |
1850 | { | |
1851 | int argno; | |
ea7c478f | 1852 | struct value *arg; |
16461d7d KB |
1853 | struct type *type; |
1854 | int len, argoffset; | |
64a5b29c | 1855 | int nslots, rseslots, memslots, slotnum, nfuncargs; |
16461d7d | 1856 | int floatreg; |
64a5b29c | 1857 | CORE_ADDR bsp, cfm, pfs, new_bsp, funcdescaddr; |
16461d7d KB |
1858 | |
1859 | nslots = 0; | |
64a5b29c | 1860 | nfuncargs = 0; |
16461d7d KB |
1861 | /* Count the number of slots needed for the arguments */ |
1862 | for (argno = 0; argno < nargs; argno++) | |
1863 | { | |
1864 | arg = args[argno]; | |
1865 | type = check_typedef (VALUE_TYPE (arg)); | |
1866 | len = TYPE_LENGTH (type); | |
1867 | ||
98f96ba1 | 1868 | if ((nslots & 1) && slot_alignment_is_next_even (type)) |
16461d7d KB |
1869 | nslots++; |
1870 | ||
64a5b29c KB |
1871 | if (TYPE_CODE (type) == TYPE_CODE_FUNC) |
1872 | nfuncargs++; | |
1873 | ||
16461d7d KB |
1874 | nslots += (len + 7) / 8; |
1875 | } | |
1876 | ||
64a5b29c | 1877 | /* Divvy up the slots between the RSE and the memory stack */ |
16461d7d KB |
1878 | rseslots = (nslots > 8) ? 8 : nslots; |
1879 | memslots = nslots - rseslots; | |
1880 | ||
64a5b29c | 1881 | /* Allocate a new RSE frame */ |
16461d7d KB |
1882 | cfm = read_register (IA64_CFM_REGNUM); |
1883 | ||
1884 | bsp = read_register (IA64_BSP_REGNUM); | |
1885 | bsp = rse_address_add (bsp, cfm & 0x7f); | |
1886 | new_bsp = rse_address_add (bsp, rseslots); | |
1887 | write_register (IA64_BSP_REGNUM, new_bsp); | |
1888 | ||
1889 | pfs = read_register (IA64_PFS_REGNUM); | |
1890 | pfs &= 0xc000000000000000LL; | |
1891 | pfs |= (cfm & 0xffffffffffffLL); | |
1892 | write_register (IA64_PFS_REGNUM, pfs); | |
1893 | ||
1894 | cfm &= 0xc000000000000000LL; | |
1895 | cfm |= rseslots; | |
1896 | write_register (IA64_CFM_REGNUM, cfm); | |
1897 | ||
64a5b29c KB |
1898 | /* We will attempt to find function descriptors in the .opd segment, |
1899 | but if we can't we'll construct them ourselves. That being the | |
1900 | case, we'll need to reserve space on the stack for them. */ | |
1901 | funcdescaddr = sp - nfuncargs * 16; | |
1902 | funcdescaddr &= ~0xfLL; | |
1903 | ||
1904 | /* Adjust the stack pointer to it's new value. The calling conventions | |
1905 | require us to have 16 bytes of scratch, plus whatever space is | |
1906 | necessary for the memory slots and our function descriptors */ | |
1907 | sp = sp - 16 - (memslots + nfuncargs) * 8; | |
16461d7d KB |
1908 | sp &= ~0xfLL; /* Maintain 16 byte alignment */ |
1909 | ||
64a5b29c KB |
1910 | /* Place the arguments where they belong. The arguments will be |
1911 | either placed in the RSE backing store or on the memory stack. | |
1912 | In addition, floating point arguments or HFAs are placed in | |
1913 | floating point registers. */ | |
16461d7d KB |
1914 | slotnum = 0; |
1915 | floatreg = IA64_FR8_REGNUM; | |
1916 | for (argno = 0; argno < nargs; argno++) | |
1917 | { | |
64a5b29c KB |
1918 | struct type *float_elt_type; |
1919 | ||
16461d7d KB |
1920 | arg = args[argno]; |
1921 | type = check_typedef (VALUE_TYPE (arg)); | |
1922 | len = TYPE_LENGTH (type); | |
64a5b29c KB |
1923 | |
1924 | /* Special handling for function parameters */ | |
1925 | if (len == 8 | |
1926 | && TYPE_CODE (type) == TYPE_CODE_PTR | |
1927 | && TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC) | |
1928 | { | |
1929 | char val_buf[8]; | |
1930 | ||
fbd9dcd3 AC |
1931 | store_unsigned_integer (val_buf, 8, |
1932 | find_func_descr (extract_address (VALUE_CONTENTS (arg), 8), | |
1933 | &funcdescaddr)); | |
64a5b29c KB |
1934 | if (slotnum < rseslots) |
1935 | write_memory (rse_address_add (bsp, slotnum), val_buf, 8); | |
1936 | else | |
1937 | write_memory (sp + 16 + 8 * (slotnum - rseslots), val_buf, 8); | |
1938 | slotnum++; | |
1939 | continue; | |
1940 | } | |
1941 | ||
1942 | /* Normal slots */ | |
98f96ba1 KB |
1943 | |
1944 | /* Skip odd slot if necessary... */ | |
1945 | if ((slotnum & 1) && slot_alignment_is_next_even (type)) | |
16461d7d | 1946 | slotnum++; |
98f96ba1 | 1947 | |
16461d7d KB |
1948 | argoffset = 0; |
1949 | while (len > 0) | |
1950 | { | |
1951 | char val_buf[8]; | |
1952 | ||
1953 | memset (val_buf, 0, 8); | |
1954 | memcpy (val_buf, VALUE_CONTENTS (arg) + argoffset, (len > 8) ? 8 : len); | |
1955 | ||
1956 | if (slotnum < rseslots) | |
1957 | write_memory (rse_address_add (bsp, slotnum), val_buf, 8); | |
1958 | else | |
1959 | write_memory (sp + 16 + 8 * (slotnum - rseslots), val_buf, 8); | |
1960 | ||
1961 | argoffset += 8; | |
1962 | len -= 8; | |
1963 | slotnum++; | |
1964 | } | |
64a5b29c KB |
1965 | |
1966 | /* Handle floating point types (including HFAs) */ | |
1967 | float_elt_type = is_float_or_hfa_type (type); | |
1968 | if (float_elt_type != NULL) | |
1969 | { | |
1970 | argoffset = 0; | |
1971 | len = TYPE_LENGTH (type); | |
1972 | while (len > 0 && floatreg < IA64_FR16_REGNUM) | |
1973 | { | |
1974 | ia64_register_convert_to_raw ( | |
1975 | float_elt_type, | |
1976 | floatreg, | |
1977 | VALUE_CONTENTS (arg) + argoffset, | |
524d7c18 | 1978 | &deprecated_registers[REGISTER_BYTE (floatreg)]); |
64a5b29c KB |
1979 | floatreg++; |
1980 | argoffset += TYPE_LENGTH (float_elt_type); | |
1981 | len -= TYPE_LENGTH (float_elt_type); | |
1982 | } | |
16461d7d KB |
1983 | } |
1984 | } | |
1985 | ||
64a5b29c | 1986 | /* Store the struct return value in r8 if necessary. */ |
16461d7d KB |
1987 | if (struct_return) |
1988 | { | |
fbd9dcd3 AC |
1989 | store_unsigned_integer (&deprecated_registers[REGISTER_BYTE (IA64_GR8_REGNUM)], |
1990 | REGISTER_RAW_SIZE (IA64_GR8_REGNUM), | |
1991 | struct_addr); | |
16461d7d KB |
1992 | } |
1993 | ||
64a5b29c | 1994 | /* Sync gdb's idea of what the registers are with the target. */ |
16461d7d KB |
1995 | target_store_registers (-1); |
1996 | ||
1997 | /* FIXME: This doesn't belong here! Instead, SAVE_DUMMY_FRAME_TOS needs | |
1998 | to be defined to call generic_save_dummy_frame_tos(). But at the | |
1999 | time of this writing, SAVE_DUMMY_FRAME_TOS wasn't gdbarch'd, so | |
2000 | I chose to put this call here instead of using the old mechanisms. | |
2001 | Once SAVE_DUMMY_FRAME_TOS is gdbarch'd, all we need to do is add the | |
2002 | line | |
2003 | ||
2004 | set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos); | |
2005 | ||
2006 | to ia64_gdbarch_init() and remove the line below. */ | |
2007 | generic_save_dummy_frame_tos (sp); | |
2008 | ||
2009 | return sp; | |
2010 | } | |
2011 | ||
2012 | CORE_ADDR | |
2013 | ia64_push_return_address (CORE_ADDR pc, CORE_ADDR sp) | |
2014 | { | |
698cb3f0 | 2015 | CORE_ADDR global_pointer = FIND_GLOBAL_POINTER (pc); |
16461d7d | 2016 | |
64a5b29c KB |
2017 | if (global_pointer != 0) |
2018 | write_register (IA64_GR1_REGNUM, global_pointer); | |
16461d7d KB |
2019 | |
2020 | write_register (IA64_BR0_REGNUM, CALL_DUMMY_ADDRESS ()); | |
2021 | return sp; | |
2022 | } | |
2023 | ||
2024 | void | |
2025 | ia64_store_return_value (struct type *type, char *valbuf) | |
2026 | { | |
2027 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
2028 | { | |
2029 | ia64_register_convert_to_raw (type, IA64_FR8_REGNUM, valbuf, | |
524d7c18 | 2030 | &deprecated_registers[REGISTER_BYTE (IA64_FR8_REGNUM)]); |
16461d7d KB |
2031 | target_store_registers (IA64_FR8_REGNUM); |
2032 | } | |
2033 | else | |
73937e03 AC |
2034 | deprecated_write_register_bytes (REGISTER_BYTE (IA64_GR8_REGNUM), |
2035 | valbuf, TYPE_LENGTH (type)); | |
16461d7d KB |
2036 | } |
2037 | ||
2038 | void | |
2039 | ia64_pop_frame (void) | |
2040 | { | |
2041 | generic_pop_current_frame (ia64_pop_frame_regular); | |
2042 | } | |
2043 | ||
2044 | static void | |
2045 | ia64_pop_frame_regular (struct frame_info *frame) | |
2046 | { | |
2047 | int regno; | |
2048 | CORE_ADDR bsp, cfm, pfs; | |
2049 | ||
f30ee0bc | 2050 | DEPRECATED_FRAME_INIT_SAVED_REGS (frame); |
16461d7d KB |
2051 | |
2052 | for (regno = 0; regno < ia64_num_regs; regno++) | |
2053 | { | |
b2fb4676 | 2054 | if (get_frame_saved_regs (frame)[regno] |
16461d7d KB |
2055 | && (!(IA64_GR32_REGNUM <= regno && regno <= IA64_GR127_REGNUM)) |
2056 | && regno != pc_regnum | |
2057 | && regno != sp_regnum | |
2058 | && regno != IA64_PFS_REGNUM | |
2059 | && regno != IA64_CFM_REGNUM | |
2060 | && regno != IA64_BSP_REGNUM | |
2061 | && regno != IA64_BSPSTORE_REGNUM) | |
2062 | { | |
2063 | write_register (regno, | |
b2fb4676 | 2064 | read_memory_integer (get_frame_saved_regs (frame)[regno], |
16461d7d KB |
2065 | REGISTER_RAW_SIZE (regno))); |
2066 | } | |
2067 | } | |
2068 | ||
618ce49f | 2069 | write_register (sp_regnum, DEPRECATED_FRAME_CHAIN (frame)); |
8bedc050 | 2070 | write_pc (DEPRECATED_FRAME_SAVED_PC (frame)); |
16461d7d KB |
2071 | |
2072 | cfm = read_register (IA64_CFM_REGNUM); | |
2073 | ||
b2fb4676 | 2074 | if (get_frame_saved_regs (frame)[IA64_PFS_REGNUM]) |
16461d7d | 2075 | { |
b2fb4676 | 2076 | pfs = read_memory_integer (get_frame_saved_regs (frame)[IA64_PFS_REGNUM], |
16461d7d KB |
2077 | REGISTER_RAW_SIZE (IA64_PFS_REGNUM)); |
2078 | } | |
2079 | else | |
2080 | pfs = read_register (IA64_PFS_REGNUM); | |
2081 | ||
2082 | /* Compute the new bsp by *adding* the difference between the | |
2083 | size of the frame and the size of the locals (both wrt the | |
2084 | frame that we're going back to). This seems kind of strange, | |
2085 | especially since it seems like we ought to be subtracting the | |
ca557f44 | 2086 | size of the locals... and we should; but the Linux kernel |
16461d7d KB |
2087 | wants bsp to be set at the end of all used registers. It's |
2088 | likely that this code will need to be revised to accomodate | |
2089 | other operating systems. */ | |
da50a4b7 | 2090 | bsp = rse_address_add (get_frame_extra_info (frame)->bsp, |
16461d7d KB |
2091 | (pfs & 0x7f) - ((pfs >> 7) & 0x7f)); |
2092 | write_register (IA64_BSP_REGNUM, bsp); | |
2093 | ||
2094 | /* FIXME: What becomes of the epilog count in the PFS? */ | |
2095 | cfm = (cfm & ~0xffffffffffffLL) | (pfs & 0xffffffffffffLL); | |
2096 | write_register (IA64_CFM_REGNUM, cfm); | |
2097 | ||
2098 | flush_cached_frames (); | |
2099 | } | |
2100 | ||
2101 | static void | |
1750fa04 AC |
2102 | ia64_remote_translate_xfer_address (struct gdbarch *gdbarch, |
2103 | struct regcache *regcache, | |
2104 | CORE_ADDR memaddr, int nr_bytes, | |
16461d7d KB |
2105 | CORE_ADDR *targ_addr, int *targ_len) |
2106 | { | |
2107 | *targ_addr = memaddr; | |
2108 | *targ_len = nr_bytes; | |
2109 | } | |
2110 | ||
244bc108 KB |
2111 | static void |
2112 | process_note_abi_tag_sections (bfd *abfd, asection *sect, void *obj) | |
2113 | { | |
2114 | int *os_ident_ptr = obj; | |
2115 | const char *name; | |
2116 | unsigned int sectsize; | |
2117 | ||
2118 | name = bfd_get_section_name (abfd, sect); | |
2119 | sectsize = bfd_section_size (abfd, sect); | |
2120 | if (strcmp (name, ".note.ABI-tag") == 0 && sectsize > 0) | |
2121 | { | |
2122 | unsigned int name_length, data_length, note_type; | |
2123 | char *note = alloca (sectsize); | |
2124 | ||
2125 | bfd_get_section_contents (abfd, sect, note, | |
2126 | (file_ptr) 0, (bfd_size_type) sectsize); | |
2127 | ||
2128 | name_length = bfd_h_get_32 (abfd, note); | |
2129 | data_length = bfd_h_get_32 (abfd, note + 4); | |
2130 | note_type = bfd_h_get_32 (abfd, note + 8); | |
2131 | ||
2132 | if (name_length == 4 && data_length == 16 && note_type == 1 | |
2133 | && strcmp (note + 12, "GNU") == 0) | |
2134 | { | |
2135 | int os_number = bfd_h_get_32 (abfd, note + 16); | |
2136 | ||
2137 | /* The case numbers are from abi-tags in glibc */ | |
2138 | switch (os_number) | |
2139 | { | |
2140 | case 0 : | |
2141 | *os_ident_ptr = ELFOSABI_LINUX; | |
2142 | break; | |
244bc108 KB |
2143 | case 1 : |
2144 | *os_ident_ptr = ELFOSABI_HURD; | |
2145 | break; | |
2146 | case 2 : | |
2147 | *os_ident_ptr = ELFOSABI_SOLARIS; | |
2148 | break; | |
244bc108 | 2149 | default : |
8e65ff28 AC |
2150 | internal_error (__FILE__, __LINE__, |
2151 | "process_note_abi_sections: unknown OS number %d", os_number); | |
244bc108 KB |
2152 | break; |
2153 | } | |
2154 | } | |
2155 | } | |
2156 | } | |
2157 | ||
16461d7d KB |
2158 | static struct gdbarch * |
2159 | ia64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) | |
2160 | { | |
2161 | struct gdbarch *gdbarch; | |
244bc108 KB |
2162 | struct gdbarch_tdep *tdep; |
2163 | int os_ident; | |
2164 | ||
2165 | if (info.abfd != NULL | |
2166 | && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) | |
2167 | { | |
2168 | os_ident = elf_elfheader (info.abfd)->e_ident[EI_OSABI]; | |
2169 | ||
ca557f44 AC |
2170 | /* If os_ident is 0, it is not necessarily the case that we're |
2171 | on a SYSV system. (ELFOSABI_NONE is defined to be 0.) | |
2172 | GNU/Linux uses a note section to record OS/ABI info, but | |
2173 | leaves e_ident[EI_OSABI] zero. So we have to check for note | |
2174 | sections too. */ | |
244bc108 KB |
2175 | if (os_ident == 0) |
2176 | { | |
2177 | bfd_map_over_sections (info.abfd, | |
2178 | process_note_abi_tag_sections, | |
2179 | &os_ident); | |
2180 | } | |
2181 | } | |
2182 | else | |
2183 | os_ident = -1; | |
16461d7d | 2184 | |
244bc108 KB |
2185 | for (arches = gdbarch_list_lookup_by_info (arches, &info); |
2186 | arches != NULL; | |
2187 | arches = gdbarch_list_lookup_by_info (arches->next, &info)) | |
2188 | { | |
57bc8964 KB |
2189 | tdep = gdbarch_tdep (arches->gdbarch); |
2190 | if (tdep &&tdep->os_ident == os_ident) | |
2191 | return arches->gdbarch; | |
244bc108 | 2192 | } |
16461d7d | 2193 | |
244bc108 KB |
2194 | tdep = xmalloc (sizeof (struct gdbarch_tdep)); |
2195 | gdbarch = gdbarch_alloc (&info, tdep); | |
2196 | tdep->os_ident = os_ident; | |
2197 | ||
a5afb99f AC |
2198 | /* NOTE: cagney/2002-12-06: This can be deleted when this arch is |
2199 | ready to unwind the PC first (see frame.c:get_prev_frame()). */ | |
2200 | set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default); | |
d7fa2ae2 KB |
2201 | |
2202 | /* Set the method of obtaining the sigcontext addresses at which | |
2203 | registers are saved. The method of checking to see if | |
2204 | native_find_global_pointer is nonzero to indicate that we're | |
2205 | on AIX is kind of hokey, but I can't think of a better way | |
2206 | to do it. */ | |
244bc108 KB |
2207 | if (os_ident == ELFOSABI_LINUX) |
2208 | tdep->sigcontext_register_address = ia64_linux_sigcontext_register_address; | |
d7fa2ae2 KB |
2209 | else if (native_find_global_pointer != 0) |
2210 | tdep->sigcontext_register_address = ia64_aix_sigcontext_register_address; | |
244bc108 KB |
2211 | else |
2212 | tdep->sigcontext_register_address = 0; | |
16461d7d | 2213 | |
ca557f44 AC |
2214 | /* We know that GNU/Linux won't have to resort to the |
2215 | native_find_global_pointer hackery. But that's the only one we | |
2216 | know about so far, so if native_find_global_pointer is set to | |
2217 | something non-zero, then use it. Otherwise fall back to using | |
2218 | generic_elf_find_global_pointer. This arrangement should (in | |
2219 | theory) allow us to cross debug GNU/Linux binaries from an AIX | |
2220 | machine. */ | |
698cb3f0 KB |
2221 | if (os_ident == ELFOSABI_LINUX) |
2222 | tdep->find_global_pointer = generic_elf_find_global_pointer; | |
2223 | else if (native_find_global_pointer != 0) | |
2224 | tdep->find_global_pointer = native_find_global_pointer; | |
2225 | else | |
2226 | tdep->find_global_pointer = generic_elf_find_global_pointer; | |
2227 | ||
16461d7d KB |
2228 | set_gdbarch_short_bit (gdbarch, 16); |
2229 | set_gdbarch_int_bit (gdbarch, 32); | |
2230 | set_gdbarch_long_bit (gdbarch, 64); | |
2231 | set_gdbarch_long_long_bit (gdbarch, 64); | |
2232 | set_gdbarch_float_bit (gdbarch, 32); | |
2233 | set_gdbarch_double_bit (gdbarch, 64); | |
2234 | set_gdbarch_long_double_bit (gdbarch, 64); | |
2235 | set_gdbarch_ptr_bit (gdbarch, 64); | |
2236 | ||
2237 | set_gdbarch_num_regs (gdbarch, ia64_num_regs); | |
2238 | set_gdbarch_sp_regnum (gdbarch, sp_regnum); | |
0ba6dca9 | 2239 | set_gdbarch_deprecated_fp_regnum (gdbarch, fp_regnum); |
16461d7d | 2240 | set_gdbarch_pc_regnum (gdbarch, pc_regnum); |
698cb3f0 | 2241 | set_gdbarch_fp0_regnum (gdbarch, IA64_FR0_REGNUM); |
16461d7d KB |
2242 | |
2243 | set_gdbarch_register_name (gdbarch, ia64_register_name); | |
b1e29e33 | 2244 | set_gdbarch_deprecated_register_size (gdbarch, 8); |
b8b527c5 | 2245 | set_gdbarch_deprecated_register_bytes (gdbarch, ia64_num_regs * 8 + 128*8); |
16461d7d KB |
2246 | set_gdbarch_register_byte (gdbarch, ia64_register_byte); |
2247 | set_gdbarch_register_raw_size (gdbarch, ia64_register_raw_size); | |
a0ed5532 | 2248 | set_gdbarch_deprecated_max_register_raw_size (gdbarch, 16); |
16461d7d | 2249 | set_gdbarch_register_virtual_size (gdbarch, ia64_register_virtual_size); |
a0ed5532 | 2250 | set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 16); |
16461d7d KB |
2251 | set_gdbarch_register_virtual_type (gdbarch, ia64_register_virtual_type); |
2252 | ||
2253 | set_gdbarch_skip_prologue (gdbarch, ia64_skip_prologue); | |
2254 | ||
2255 | set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown); | |
2256 | set_gdbarch_frameless_function_invocation (gdbarch, ia64_frameless_function_invocation); | |
2257 | ||
6913c89a | 2258 | set_gdbarch_deprecated_saved_pc_after_call (gdbarch, ia64_saved_pc_after_call); |
16461d7d | 2259 | |
618ce49f | 2260 | set_gdbarch_deprecated_frame_chain (gdbarch, ia64_frame_chain); |
8bedc050 | 2261 | set_gdbarch_deprecated_frame_saved_pc (gdbarch, ia64_frame_saved_pc); |
16461d7d | 2262 | |
f30ee0bc | 2263 | set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, ia64_frame_init_saved_regs); |
129c1cd6 | 2264 | set_gdbarch_deprecated_get_saved_register (gdbarch, ia64_get_saved_register); |
16461d7d KB |
2265 | |
2266 | set_gdbarch_register_convertible (gdbarch, ia64_register_convertible); | |
2267 | set_gdbarch_register_convert_to_virtual (gdbarch, ia64_register_convert_to_virtual); | |
2268 | set_gdbarch_register_convert_to_raw (gdbarch, ia64_register_convert_to_raw); | |
2269 | ||
2270 | set_gdbarch_use_struct_convention (gdbarch, ia64_use_struct_convention); | |
26e9b323 | 2271 | set_gdbarch_deprecated_extract_return_value (gdbarch, ia64_extract_return_value); |
16461d7d | 2272 | |
4183d812 | 2273 | set_gdbarch_deprecated_store_struct_return (gdbarch, ia64_store_struct_return); |
ebba8386 | 2274 | set_gdbarch_deprecated_store_return_value (gdbarch, ia64_store_return_value); |
26e9b323 | 2275 | set_gdbarch_deprecated_extract_struct_value_address (gdbarch, ia64_extract_struct_value_address); |
16461d7d KB |
2276 | |
2277 | set_gdbarch_memory_insert_breakpoint (gdbarch, ia64_memory_insert_breakpoint); | |
2278 | set_gdbarch_memory_remove_breakpoint (gdbarch, ia64_memory_remove_breakpoint); | |
2279 | set_gdbarch_breakpoint_from_pc (gdbarch, ia64_breakpoint_from_pc); | |
2280 | set_gdbarch_read_pc (gdbarch, ia64_read_pc); | |
2281 | set_gdbarch_write_pc (gdbarch, ia64_write_pc); | |
2282 | ||
2283 | /* Settings for calling functions in the inferior. */ | |
b81774d8 | 2284 | set_gdbarch_deprecated_push_arguments (gdbarch, ia64_push_arguments); |
28f617b3 | 2285 | set_gdbarch_deprecated_push_return_address (gdbarch, ia64_push_return_address); |
749b82f6 | 2286 | set_gdbarch_deprecated_pop_frame (gdbarch, ia64_pop_frame); |
16461d7d | 2287 | |
b1e29e33 AC |
2288 | set_gdbarch_deprecated_call_dummy_words (gdbarch, ia64_call_dummy_words); |
2289 | set_gdbarch_deprecated_sizeof_call_dummy_words (gdbarch, sizeof (ia64_call_dummy_words)); | |
e9582e71 | 2290 | set_gdbarch_deprecated_init_extra_frame_info (gdbarch, ia64_init_extra_frame_info); |
16461d7d KB |
2291 | set_gdbarch_frame_args_address (gdbarch, ia64_frame_args_address); |
2292 | set_gdbarch_frame_locals_address (gdbarch, ia64_frame_locals_address); | |
2293 | ||
0ba6dca9 AC |
2294 | /* We won't necessarily have a frame pointer and even if we do, it |
2295 | winds up being extraordinarly messy when attempting to find the | |
2296 | frame chain. So for the purposes of creating frames (which is | |
2297 | all deprecated_read_fp() is used for), simply use the stack | |
2298 | pointer value instead. */ | |
2299 | set_gdbarch_deprecated_target_read_fp (gdbarch, generic_target_read_sp); | |
16461d7d KB |
2300 | |
2301 | /* Settings that should be unnecessary. */ | |
2302 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); | |
2303 | ||
2304 | set_gdbarch_read_sp (gdbarch, generic_target_read_sp); | |
6c0e89ed | 2305 | set_gdbarch_deprecated_dummy_write_sp (gdbarch, generic_target_write_sp); |
16461d7d | 2306 | |
16461d7d KB |
2307 | set_gdbarch_decr_pc_after_break (gdbarch, 0); |
2308 | set_gdbarch_function_start_offset (gdbarch, 0); | |
4156bb53 | 2309 | set_gdbarch_frame_args_skip (gdbarch, 0); |
16461d7d KB |
2310 | |
2311 | set_gdbarch_remote_translate_xfer_address ( | |
2312 | gdbarch, ia64_remote_translate_xfer_address); | |
2313 | ||
2314 | return gdbarch; | |
2315 | } | |
2316 | ||
2317 | void | |
2318 | _initialize_ia64_tdep (void) | |
2319 | { | |
2320 | register_gdbarch_init (bfd_arch_ia64, ia64_gdbarch_init); | |
2321 | ||
d7a27068 | 2322 | deprecated_tm_print_insn = print_insn_ia64; |
810ecf9f | 2323 | deprecated_tm_print_insn_info.bytes_per_line = SLOT_MULTIPLIER; |
16461d7d | 2324 | } |