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a80b95ba | 1 | /* Darwin support for GDB, the GNU debugger. |
0fb0cc75 | 2 | Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2008, 2009 |
a80b95ba TG |
3 | Free Software Foundation, Inc. |
4 | ||
5 | Contributed by Apple Computer, Inc. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | #include "defs.h" | |
23 | #include "frame.h" | |
24 | #include "inferior.h" | |
25 | #include "target.h" | |
26 | #include "symfile.h" | |
27 | #include "symtab.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "regcache.h" | |
31 | #include "gdb_assert.h" | |
32 | #include "i386-tdep.h" | |
33 | #include "amd64-nat.h" | |
34 | #include "i387-tdep.h" | |
35 | #include "gdbarch.h" | |
36 | #include "arch-utils.h" | |
acdb24a9 | 37 | #include "gdbcore.h" |
a80b95ba TG |
38 | |
39 | #include "darwin-nat.h" | |
40 | #include "i386-darwin-tdep.h" | |
41 | ||
42 | /* Read register values from the inferior process. | |
43 | If REGNO is -1, do this for all registers. | |
44 | Otherwise, REGNO specifies which register (so we can save time). */ | |
45 | static void | |
46 | i386_darwin_fetch_inferior_registers (struct regcache *regcache, int regno) | |
47 | { | |
48 | thread_t current_thread = ptid_get_tid (inferior_ptid); | |
49 | int fetched = 0; | |
50 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
51 | ||
52 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
53 | { | |
54 | if (regno == -1 || amd64_native_gregset_supplies_p (gdbarch, regno)) | |
55 | { | |
56 | x86_thread_state_t gp_regs; | |
57 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
58 | kern_return_t ret; | |
59 | ||
60 | ret = thread_get_state | |
61 | (current_thread, x86_THREAD_STATE, (thread_state_t) & gp_regs, | |
62 | &gp_count); | |
63 | if (ret != KERN_SUCCESS) | |
64 | { | |
65 | printf_unfiltered (_("Error calling thread_get_state for GP registers for thread 0x%ulx"), current_thread); | |
66 | MACH_CHECK_ERROR (ret); | |
67 | } | |
68 | amd64_supply_native_gregset (regcache, &gp_regs.uts, -1); | |
69 | fetched++; | |
70 | } | |
71 | ||
72 | if (regno == -1 || !amd64_native_gregset_supplies_p (gdbarch, regno)) | |
73 | { | |
74 | x86_float_state_t fp_regs; | |
75 | unsigned int fp_count = x86_FLOAT_STATE_COUNT; | |
76 | kern_return_t ret; | |
77 | ||
78 | ret = thread_get_state | |
79 | (current_thread, x86_FLOAT_STATE, (thread_state_t) & fp_regs, | |
80 | &fp_count); | |
81 | if (ret != KERN_SUCCESS) | |
82 | { | |
83 | printf_unfiltered (_("Error calling thread_get_state for float registers for thread 0x%ulx"), current_thread); | |
84 | MACH_CHECK_ERROR (ret); | |
85 | } | |
86 | i387_supply_fxsave (regcache, -1, &fp_regs.ufs.fs64); | |
87 | fetched++; | |
88 | } | |
89 | } | |
90 | else | |
91 | { | |
92 | if (regno == -1 || regno < I386_NUM_GREGS) | |
93 | { | |
94 | i386_thread_state_t gp_regs; | |
95 | unsigned int gp_count = i386_THREAD_STATE_COUNT; | |
96 | kern_return_t ret; | |
97 | int i; | |
98 | ||
99 | ret = thread_get_state | |
100 | (current_thread, i386_THREAD_STATE, (thread_state_t) & gp_regs, | |
101 | &gp_count); | |
102 | if (ret != KERN_SUCCESS) | |
103 | { | |
104 | printf_unfiltered (_("Error calling thread_get_state for GP registers for thread 0x%ulx"), current_thread); | |
105 | MACH_CHECK_ERROR (ret); | |
106 | } | |
107 | for (i = 0; i < I386_NUM_GREGS; i++) | |
108 | regcache_raw_supply | |
109 | (regcache, i, | |
110 | (char *)&gp_regs + i386_darwin_thread_state_reg_offset[i]); | |
111 | ||
112 | fetched++; | |
113 | } | |
114 | ||
115 | if (regno == -1 | |
116 | || (regno >= I386_ST0_REGNUM && regno < I386_SSE_NUM_REGS)) | |
117 | { | |
118 | i386_float_state_t fp_regs; | |
119 | unsigned int fp_count = i386_FLOAT_STATE_COUNT; | |
120 | kern_return_t ret; | |
121 | ||
122 | ret = thread_get_state | |
123 | (current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs, | |
124 | &fp_count); | |
125 | if (ret != KERN_SUCCESS) | |
126 | { | |
127 | printf_unfiltered (_("Error calling thread_get_state for float registers for thread 0x%ulx"), current_thread); | |
128 | MACH_CHECK_ERROR (ret); | |
129 | } | |
130 | i387_supply_fxsave (regcache, -1, &fp_regs.__fpu_fcw); | |
131 | fetched++; | |
132 | } | |
133 | } | |
134 | ||
135 | if (! fetched) | |
136 | { | |
137 | warning (_("unknown register %d"), regno); | |
138 | regcache_raw_supply (regcache, regno, NULL); | |
139 | } | |
140 | } | |
141 | ||
142 | /* Store our register values back into the inferior. | |
143 | If REGNO is -1, do this for all registers. | |
144 | Otherwise, REGNO specifies which register (so we can save time). */ | |
145 | ||
146 | static void | |
147 | i386_darwin_store_inferior_registers (struct regcache *regcache, int regno) | |
148 | { | |
149 | thread_t current_thread = ptid_get_tid (inferior_ptid); | |
150 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
151 | ||
152 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
153 | { | |
154 | if (regno == -1 || amd64_native_gregset_supplies_p (gdbarch, regno)) | |
155 | { | |
156 | x86_thread_state_t gp_regs; | |
157 | kern_return_t ret; | |
158 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
159 | ||
160 | ret = thread_get_state | |
161 | (current_thread, x86_THREAD_STATE, (thread_state_t) &gp_regs, | |
162 | &gp_count); | |
163 | MACH_CHECK_ERROR (ret); | |
164 | gdb_assert (gp_regs.tsh.flavor == x86_THREAD_STATE64); | |
165 | gdb_assert (gp_regs.tsh.count == x86_THREAD_STATE64_COUNT); | |
166 | ||
167 | amd64_collect_native_gregset (regcache, &gp_regs.uts, regno); | |
168 | ||
169 | ret = thread_set_state (current_thread, x86_THREAD_STATE, | |
170 | (thread_state_t) &gp_regs, | |
171 | x86_THREAD_STATE_COUNT); | |
172 | MACH_CHECK_ERROR (ret); | |
173 | } | |
174 | ||
175 | if (regno == -1 || !amd64_native_gregset_supplies_p (gdbarch, regno)) | |
176 | { | |
177 | x86_float_state_t fp_regs; | |
178 | kern_return_t ret; | |
179 | unsigned int fp_count = x86_FLOAT_STATE_COUNT; | |
180 | ||
181 | ret = thread_get_state | |
182 | (current_thread, x86_FLOAT_STATE, (thread_state_t) & fp_regs, | |
183 | &fp_count); | |
184 | MACH_CHECK_ERROR (ret); | |
185 | gdb_assert (fp_regs.fsh.flavor == x86_FLOAT_STATE64); | |
186 | gdb_assert (fp_regs.fsh.count == x86_FLOAT_STATE64_COUNT); | |
187 | ||
188 | i387_collect_fxsave (regcache, regno, &fp_regs.ufs.fs64.__fpu_fcw); | |
189 | ||
190 | ret = thread_set_state (current_thread, x86_FLOAT_STATE, | |
191 | (thread_state_t) & fp_regs, | |
192 | x86_FLOAT_STATE_COUNT); | |
193 | MACH_CHECK_ERROR (ret); | |
194 | } | |
195 | } | |
196 | else | |
197 | { | |
198 | if (regno == -1 || regno < I386_NUM_GREGS) | |
199 | { | |
200 | i386_thread_state_t gp_regs; | |
201 | kern_return_t ret; | |
202 | unsigned int gp_count = i386_THREAD_STATE_COUNT; | |
203 | int i; | |
204 | ||
205 | ret = thread_get_state | |
206 | (current_thread, i386_THREAD_STATE, (thread_state_t) & gp_regs, | |
207 | &gp_count); | |
208 | MACH_CHECK_ERROR (ret); | |
209 | ||
210 | for (i = 0; i < I386_NUM_GREGS; i++) | |
211 | if (regno == -1 || regno == i) | |
212 | regcache_raw_collect | |
213 | (regcache, i, | |
214 | (char *)&gp_regs + i386_darwin_thread_state_reg_offset[i]); | |
215 | ||
216 | ret = thread_set_state (current_thread, i386_THREAD_STATE, | |
217 | (thread_state_t) & gp_regs, | |
218 | i386_THREAD_STATE_COUNT); | |
219 | MACH_CHECK_ERROR (ret); | |
220 | } | |
221 | ||
222 | if (regno == -1 | |
223 | || (regno >= I386_ST0_REGNUM && regno < I386_SSE_NUM_REGS)) | |
224 | { | |
225 | i386_float_state_t fp_regs; | |
226 | unsigned int fp_count = i386_FLOAT_STATE_COUNT; | |
227 | kern_return_t ret; | |
228 | ||
229 | ret = thread_get_state | |
230 | (current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs, | |
231 | &fp_count); | |
232 | MACH_CHECK_ERROR (ret); | |
233 | ||
234 | i387_collect_fxsave (regcache, regno, &fp_regs.__fpu_fcw); | |
235 | ||
236 | ret = thread_set_state (current_thread, i386_FLOAT_STATE, | |
237 | (thread_state_t) & fp_regs, | |
238 | i386_FLOAT_STATE_COUNT); | |
239 | MACH_CHECK_ERROR (ret); | |
240 | } | |
241 | } | |
242 | } | |
243 | ||
244 | ||
245 | /* Support for debug registers, boosted mostly from i386-linux-nat.c. */ | |
246 | ||
247 | #ifndef DR_FIRSTADDR | |
248 | #define DR_FIRSTADDR 0 | |
249 | #endif | |
250 | ||
251 | #ifndef DR_LASTADDR | |
252 | #define DR_LASTADDR 3 | |
253 | #endif | |
254 | ||
255 | #ifndef DR_STATUS | |
256 | #define DR_STATUS 6 | |
257 | #endif | |
258 | ||
259 | #ifndef DR_CONTROL | |
260 | #define DR_CONTROL 7 | |
261 | #endif | |
262 | ||
263 | ||
264 | static void | |
265 | i386_darwin_dr_set (int regnum, uint32_t value) | |
266 | { | |
267 | int current_pid; | |
268 | thread_t current_thread; | |
269 | x86_debug_state_t dr_regs; | |
270 | kern_return_t ret; | |
271 | unsigned int dr_count = x86_DEBUG_STATE_COUNT; | |
272 | ||
273 | gdb_assert (regnum >= 0 && regnum <= DR_CONTROL); | |
274 | ||
275 | current_thread = ptid_get_tid (inferior_ptid); | |
276 | ||
277 | dr_regs.dsh.flavor = x86_DEBUG_STATE32; | |
278 | dr_regs.dsh.count = x86_DEBUG_STATE32_COUNT; | |
279 | dr_count = x86_DEBUG_STATE_COUNT; | |
280 | ret = thread_get_state (current_thread, x86_DEBUG_STATE, | |
281 | (thread_state_t) &dr_regs, &dr_count); | |
282 | ||
283 | if (ret != KERN_SUCCESS) | |
284 | { | |
285 | printf_unfiltered (_("Error reading debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
286 | MACH_CHECK_ERROR (ret); | |
287 | } | |
288 | ||
289 | switch (regnum) | |
290 | { | |
291 | case 0: | |
292 | dr_regs.uds.ds32.__dr0 = value; | |
293 | break; | |
294 | case 1: | |
295 | dr_regs.uds.ds32.__dr1 = value; | |
296 | break; | |
297 | case 2: | |
298 | dr_regs.uds.ds32.__dr2 = value; | |
299 | break; | |
300 | case 3: | |
301 | dr_regs.uds.ds32.__dr3 = value; | |
302 | break; | |
303 | case 4: | |
304 | dr_regs.uds.ds32.__dr4 = value; | |
305 | break; | |
306 | case 5: | |
307 | dr_regs.uds.ds32.__dr5 = value; | |
308 | break; | |
309 | case 6: | |
310 | dr_regs.uds.ds32.__dr6 = value; | |
311 | break; | |
312 | case 7: | |
313 | dr_regs.uds.ds32.__dr7 = value; | |
314 | break; | |
315 | } | |
316 | ||
317 | ret = thread_set_state (current_thread, x86_DEBUG_STATE, | |
318 | (thread_state_t) &dr_regs, dr_count); | |
319 | ||
320 | if (ret != KERN_SUCCESS) | |
321 | { | |
322 | printf_unfiltered (_("Error writing debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
323 | MACH_CHECK_ERROR (ret); | |
324 | } | |
325 | } | |
326 | ||
327 | static uint32_t | |
328 | i386_darwin_dr_get (int regnum) | |
329 | { | |
330 | thread_t current_thread; | |
331 | x86_debug_state_t dr_regs; | |
332 | kern_return_t ret; | |
333 | unsigned int dr_count = x86_DEBUG_STATE_COUNT; | |
334 | ||
335 | gdb_assert (regnum >= 0 && regnum <= DR_CONTROL); | |
336 | ||
337 | current_thread = ptid_get_tid (inferior_ptid); | |
338 | ||
339 | dr_regs.dsh.flavor = x86_DEBUG_STATE32; | |
340 | dr_regs.dsh.count = x86_DEBUG_STATE32_COUNT; | |
341 | dr_count = x86_DEBUG_STATE_COUNT; | |
342 | ret = thread_get_state (current_thread, x86_DEBUG_STATE, | |
343 | (thread_state_t) &dr_regs, &dr_count); | |
344 | ||
345 | if (ret != KERN_SUCCESS) | |
346 | { | |
347 | printf_unfiltered (_("Error reading debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
348 | MACH_CHECK_ERROR (ret); | |
349 | } | |
350 | ||
351 | switch (regnum) | |
352 | { | |
353 | case 0: | |
354 | return dr_regs.uds.ds32.__dr0; | |
355 | case 1: | |
356 | return dr_regs.uds.ds32.__dr1; | |
357 | case 2: | |
358 | return dr_regs.uds.ds32.__dr2; | |
359 | case 3: | |
360 | return dr_regs.uds.ds32.__dr3; | |
361 | case 4: | |
362 | return dr_regs.uds.ds32.__dr4; | |
363 | case 5: | |
364 | return dr_regs.uds.ds32.__dr5; | |
365 | case 6: | |
366 | return dr_regs.uds.ds32.__dr6; | |
367 | case 7: | |
368 | return dr_regs.uds.ds32.__dr7; | |
369 | default: | |
370 | return -1; | |
371 | } | |
372 | } | |
373 | ||
374 | void | |
375 | i386_darwin_dr_set_control (unsigned long control) | |
376 | { | |
377 | i386_darwin_dr_set (DR_CONTROL, control); | |
378 | } | |
379 | ||
380 | void | |
381 | i386_darwin_dr_set_addr (int regnum, CORE_ADDR addr) | |
382 | { | |
383 | gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR); | |
384 | ||
385 | i386_darwin_dr_set (DR_FIRSTADDR + regnum, addr); | |
386 | } | |
387 | ||
388 | void | |
389 | i386_darwin_dr_reset_addr (int regnum) | |
390 | { | |
391 | gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR); | |
392 | ||
393 | i386_darwin_dr_set (DR_FIRSTADDR + regnum, 0L); | |
394 | } | |
395 | ||
396 | unsigned long | |
397 | i386_darwin_dr_get_status (void) | |
398 | { | |
399 | return i386_darwin_dr_get (DR_STATUS); | |
400 | } | |
401 | ||
402 | void | |
403 | darwin_check_osabi (darwin_inferior *inf, thread_t thread) | |
404 | { | |
405 | if (gdbarch_osabi (current_gdbarch) == GDB_OSABI_UNKNOWN) | |
406 | { | |
407 | /* Attaching to a process. Let's figure out what kind it is. */ | |
408 | x86_thread_state_t gp_regs; | |
409 | struct gdbarch_info info; | |
410 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
411 | kern_return_t ret; | |
412 | ||
413 | ret = thread_get_state (thread, x86_THREAD_STATE, | |
414 | (thread_state_t) &gp_regs, &gp_count); | |
415 | if (ret != KERN_SUCCESS) | |
416 | { | |
417 | MACH_CHECK_ERROR (ret); | |
418 | return; | |
419 | } | |
420 | ||
421 | gdbarch_info_init (&info); | |
422 | gdbarch_info_fill (&info); | |
423 | info.byte_order = gdbarch_byte_order (current_gdbarch); | |
424 | info.osabi = GDB_OSABI_DARWIN; | |
425 | if (gp_regs.tsh.flavor == x86_THREAD_STATE64) | |
426 | info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386, | |
427 | bfd_mach_x86_64); | |
428 | else | |
429 | info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386, | |
430 | bfd_mach_i386_i386); | |
431 | gdbarch_update_p (info); | |
432 | } | |
433 | } | |
434 | ||
435 | #define X86_EFLAGS_T 0x100UL | |
436 | ||
acdb24a9 TG |
437 | /* Returning from a signal trampoline is done by calling a |
438 | special system call (sigreturn). This system call | |
439 | restores the registers that were saved when the signal was | |
440 | raised, including %eflags/%rflags. That means that single-stepping | |
441 | won't work. Instead, we'll have to modify the signal context | |
442 | that's about to be restored, and set the trace flag there. */ | |
443 | ||
444 | static int | |
445 | i386_darwin_sstep_at_sigreturn (x86_thread_state_t *regs) | |
446 | { | |
447 | static const gdb_byte darwin_syscall[] = { 0xcd, 0x80 }; /* int 0x80 */ | |
448 | gdb_byte buf[sizeof (darwin_syscall)]; | |
449 | ||
450 | /* Check if PC is at a sigreturn system call. */ | |
451 | if (target_read_memory (regs->uts.ts32.__eip, buf, sizeof (buf)) == 0 | |
452 | && memcmp (buf, darwin_syscall, sizeof (darwin_syscall)) == 0 | |
453 | && regs->uts.ts32.__eax == 0xb8 /* SYS_sigreturn */) | |
454 | { | |
455 | ULONGEST uctx_addr; | |
456 | ULONGEST mctx_addr; | |
457 | ULONGEST flags_addr; | |
458 | unsigned int eflags; | |
459 | ||
460 | uctx_addr = read_memory_unsigned_integer (regs->uts.ts32.__esp + 4, 4); | |
461 | mctx_addr = read_memory_unsigned_integer (uctx_addr + 28, 4); | |
462 | ||
463 | flags_addr = mctx_addr + 12 + 9 * 4; | |
464 | read_memory (flags_addr, (gdb_byte *) &eflags, 4); | |
465 | eflags |= X86_EFLAGS_T; | |
466 | write_memory (flags_addr, (gdb_byte *) &eflags, 4); | |
467 | ||
468 | return 1; | |
469 | } | |
470 | return 0; | |
471 | } | |
472 | ||
473 | static int | |
474 | amd64_darwin_sstep_at_sigreturn (x86_thread_state_t *regs) | |
475 | { | |
476 | static const gdb_byte darwin_syscall[] = { 0x0f, 0x05 }; /* syscall */ | |
477 | gdb_byte buf[sizeof (darwin_syscall)]; | |
478 | ||
479 | /* Check if PC is at a sigreturn system call. */ | |
480 | if (target_read_memory (regs->uts.ts64.__rip, buf, sizeof (buf)) == 0 | |
481 | && memcmp (buf, darwin_syscall, sizeof (darwin_syscall)) == 0 | |
482 | && (regs->uts.ts64.__rax & 0xffffffff) == 0x20000b8 /* SYS_sigreturn */) | |
483 | { | |
484 | ULONGEST mctx_addr; | |
485 | ULONGEST flags_addr; | |
486 | unsigned int rflags; | |
487 | ||
488 | mctx_addr = read_memory_unsigned_integer (regs->uts.ts64.__rdi + 48, 8); | |
489 | flags_addr = mctx_addr + 16 + 17 * 8; | |
490 | ||
491 | /* AMD64 is little endian. */ | |
492 | read_memory (flags_addr, (gdb_byte *) &rflags, 4); | |
493 | rflags |= X86_EFLAGS_T; | |
494 | write_memory (flags_addr, (gdb_byte *) &rflags, 4); | |
495 | ||
496 | return 1; | |
497 | } | |
498 | return 0; | |
499 | } | |
500 | ||
a80b95ba TG |
501 | void |
502 | darwin_set_sstep (thread_t thread, int enable) | |
503 | { | |
504 | x86_thread_state_t regs; | |
505 | unsigned int count = x86_THREAD_STATE_COUNT; | |
506 | kern_return_t kret; | |
507 | ||
508 | kret = thread_get_state (thread, x86_THREAD_STATE, | |
509 | (thread_state_t) ®s, &count); | |
510 | if (kret != KERN_SUCCESS) | |
511 | { | |
512 | printf_unfiltered (_("darwin_set_sstep: error %x, thread=%x\n"), | |
513 | kret, thread); | |
514 | return; | |
515 | } | |
acdb24a9 | 516 | |
a80b95ba TG |
517 | switch (regs.tsh.flavor) |
518 | { | |
519 | case x86_THREAD_STATE32: | |
520 | { | |
521 | __uint32_t bit = enable ? X86_EFLAGS_T : 0; | |
522 | ||
acdb24a9 TG |
523 | if (enable && i386_darwin_sstep_at_sigreturn (®s)) |
524 | return; | |
a80b95ba TG |
525 | if ((regs.uts.ts32.__eflags & X86_EFLAGS_T) == bit) |
526 | return; | |
527 | regs.uts.ts32.__eflags = (regs.uts.ts32.__eflags & ~X86_EFLAGS_T) | bit; | |
528 | kret = thread_set_state (thread, x86_THREAD_STATE, | |
529 | (thread_state_t) ®s, count); | |
530 | MACH_CHECK_ERROR (kret); | |
531 | } | |
532 | break; | |
533 | case x86_THREAD_STATE64: | |
534 | { | |
535 | __uint64_t bit = enable ? X86_EFLAGS_T : 0; | |
536 | ||
acdb24a9 TG |
537 | if (enable && amd64_darwin_sstep_at_sigreturn (®s)) |
538 | return; | |
a80b95ba TG |
539 | if ((regs.uts.ts64.__rflags & X86_EFLAGS_T) == bit) |
540 | return; | |
541 | regs.uts.ts64.__rflags = (regs.uts.ts64.__rflags & ~X86_EFLAGS_T) | bit; | |
542 | kret = thread_set_state (thread, x86_THREAD_STATE, | |
543 | (thread_state_t) ®s, count); | |
544 | MACH_CHECK_ERROR (kret); | |
545 | } | |
546 | break; | |
547 | default: | |
548 | error (_("darwin_set_sstep: unknown flavour: %d\n"), regs.tsh.flavor); | |
549 | } | |
550 | } | |
551 | ||
552 | void | |
553 | darwin_complete_target (struct target_ops *target) | |
554 | { | |
555 | amd64_native_gregset64_reg_offset = amd64_darwin_thread_state_reg_offset; | |
556 | amd64_native_gregset64_num_regs = amd64_darwin_thread_state_num_regs; | |
557 | amd64_native_gregset32_reg_offset = i386_darwin_thread_state_reg_offset; | |
558 | amd64_native_gregset32_num_regs = i386_darwin_thread_state_num_regs; | |
559 | ||
560 | target->to_fetch_registers = i386_darwin_fetch_inferior_registers; | |
561 | target->to_store_registers = i386_darwin_store_inferior_registers; | |
562 | } |