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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 | |
28439f5e PA |
46 | i386_darwin_fetch_inferior_registers (struct target_ops *ops, |
47 | struct regcache *regcache, int regno) | |
a80b95ba TG |
48 | { |
49 | thread_t current_thread = ptid_get_tid (inferior_ptid); | |
50 | int fetched = 0; | |
51 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
52 | ||
53 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
54 | { | |
55 | if (regno == -1 || amd64_native_gregset_supplies_p (gdbarch, regno)) | |
56 | { | |
57 | x86_thread_state_t gp_regs; | |
58 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
59 | kern_return_t ret; | |
60 | ||
61 | ret = thread_get_state | |
62 | (current_thread, x86_THREAD_STATE, (thread_state_t) & gp_regs, | |
63 | &gp_count); | |
64 | if (ret != KERN_SUCCESS) | |
65 | { | |
66 | printf_unfiltered (_("Error calling thread_get_state for GP registers for thread 0x%ulx"), current_thread); | |
67 | MACH_CHECK_ERROR (ret); | |
68 | } | |
69 | amd64_supply_native_gregset (regcache, &gp_regs.uts, -1); | |
70 | fetched++; | |
71 | } | |
72 | ||
73 | if (regno == -1 || !amd64_native_gregset_supplies_p (gdbarch, regno)) | |
74 | { | |
75 | x86_float_state_t fp_regs; | |
76 | unsigned int fp_count = x86_FLOAT_STATE_COUNT; | |
77 | kern_return_t ret; | |
78 | ||
79 | ret = thread_get_state | |
80 | (current_thread, x86_FLOAT_STATE, (thread_state_t) & fp_regs, | |
81 | &fp_count); | |
82 | if (ret != KERN_SUCCESS) | |
83 | { | |
84 | printf_unfiltered (_("Error calling thread_get_state for float registers for thread 0x%ulx"), current_thread); | |
85 | MACH_CHECK_ERROR (ret); | |
86 | } | |
87 | i387_supply_fxsave (regcache, -1, &fp_regs.ufs.fs64); | |
88 | fetched++; | |
89 | } | |
90 | } | |
91 | else | |
92 | { | |
93 | if (regno == -1 || regno < I386_NUM_GREGS) | |
94 | { | |
95 | i386_thread_state_t gp_regs; | |
96 | unsigned int gp_count = i386_THREAD_STATE_COUNT; | |
97 | kern_return_t ret; | |
98 | int i; | |
99 | ||
100 | ret = thread_get_state | |
101 | (current_thread, i386_THREAD_STATE, (thread_state_t) & gp_regs, | |
102 | &gp_count); | |
103 | if (ret != KERN_SUCCESS) | |
104 | { | |
105 | printf_unfiltered (_("Error calling thread_get_state for GP registers for thread 0x%ulx"), current_thread); | |
106 | MACH_CHECK_ERROR (ret); | |
107 | } | |
108 | for (i = 0; i < I386_NUM_GREGS; i++) | |
109 | regcache_raw_supply | |
110 | (regcache, i, | |
111 | (char *)&gp_regs + i386_darwin_thread_state_reg_offset[i]); | |
112 | ||
113 | fetched++; | |
114 | } | |
115 | ||
116 | if (regno == -1 | |
117 | || (regno >= I386_ST0_REGNUM && regno < I386_SSE_NUM_REGS)) | |
118 | { | |
119 | i386_float_state_t fp_regs; | |
120 | unsigned int fp_count = i386_FLOAT_STATE_COUNT; | |
121 | kern_return_t ret; | |
122 | ||
123 | ret = thread_get_state | |
124 | (current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs, | |
125 | &fp_count); | |
126 | if (ret != KERN_SUCCESS) | |
127 | { | |
128 | printf_unfiltered (_("Error calling thread_get_state for float registers for thread 0x%ulx"), current_thread); | |
129 | MACH_CHECK_ERROR (ret); | |
130 | } | |
131 | i387_supply_fxsave (regcache, -1, &fp_regs.__fpu_fcw); | |
132 | fetched++; | |
133 | } | |
134 | } | |
135 | ||
136 | if (! fetched) | |
137 | { | |
138 | warning (_("unknown register %d"), regno); | |
139 | regcache_raw_supply (regcache, regno, NULL); | |
140 | } | |
141 | } | |
142 | ||
143 | /* Store our register values back into the inferior. | |
144 | If REGNO is -1, do this for all registers. | |
145 | Otherwise, REGNO specifies which register (so we can save time). */ | |
146 | ||
147 | static void | |
28439f5e PA |
148 | i386_darwin_store_inferior_registers (struct target_ops *ops, |
149 | struct regcache *regcache, int regno) | |
a80b95ba TG |
150 | { |
151 | thread_t current_thread = ptid_get_tid (inferior_ptid); | |
152 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
153 | ||
154 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
155 | { | |
156 | if (regno == -1 || amd64_native_gregset_supplies_p (gdbarch, regno)) | |
157 | { | |
158 | x86_thread_state_t gp_regs; | |
159 | kern_return_t ret; | |
160 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
161 | ||
162 | ret = thread_get_state | |
163 | (current_thread, x86_THREAD_STATE, (thread_state_t) &gp_regs, | |
164 | &gp_count); | |
165 | MACH_CHECK_ERROR (ret); | |
166 | gdb_assert (gp_regs.tsh.flavor == x86_THREAD_STATE64); | |
167 | gdb_assert (gp_regs.tsh.count == x86_THREAD_STATE64_COUNT); | |
168 | ||
169 | amd64_collect_native_gregset (regcache, &gp_regs.uts, regno); | |
170 | ||
171 | ret = thread_set_state (current_thread, x86_THREAD_STATE, | |
172 | (thread_state_t) &gp_regs, | |
173 | x86_THREAD_STATE_COUNT); | |
174 | MACH_CHECK_ERROR (ret); | |
175 | } | |
176 | ||
177 | if (regno == -1 || !amd64_native_gregset_supplies_p (gdbarch, regno)) | |
178 | { | |
179 | x86_float_state_t fp_regs; | |
180 | kern_return_t ret; | |
181 | unsigned int fp_count = x86_FLOAT_STATE_COUNT; | |
182 | ||
183 | ret = thread_get_state | |
184 | (current_thread, x86_FLOAT_STATE, (thread_state_t) & fp_regs, | |
185 | &fp_count); | |
186 | MACH_CHECK_ERROR (ret); | |
187 | gdb_assert (fp_regs.fsh.flavor == x86_FLOAT_STATE64); | |
188 | gdb_assert (fp_regs.fsh.count == x86_FLOAT_STATE64_COUNT); | |
189 | ||
190 | i387_collect_fxsave (regcache, regno, &fp_regs.ufs.fs64.__fpu_fcw); | |
191 | ||
192 | ret = thread_set_state (current_thread, x86_FLOAT_STATE, | |
193 | (thread_state_t) & fp_regs, | |
194 | x86_FLOAT_STATE_COUNT); | |
195 | MACH_CHECK_ERROR (ret); | |
196 | } | |
197 | } | |
198 | else | |
199 | { | |
200 | if (regno == -1 || regno < I386_NUM_GREGS) | |
201 | { | |
202 | i386_thread_state_t gp_regs; | |
203 | kern_return_t ret; | |
204 | unsigned int gp_count = i386_THREAD_STATE_COUNT; | |
205 | int i; | |
206 | ||
207 | ret = thread_get_state | |
208 | (current_thread, i386_THREAD_STATE, (thread_state_t) & gp_regs, | |
209 | &gp_count); | |
210 | MACH_CHECK_ERROR (ret); | |
211 | ||
212 | for (i = 0; i < I386_NUM_GREGS; i++) | |
213 | if (regno == -1 || regno == i) | |
214 | regcache_raw_collect | |
215 | (regcache, i, | |
216 | (char *)&gp_regs + i386_darwin_thread_state_reg_offset[i]); | |
217 | ||
218 | ret = thread_set_state (current_thread, i386_THREAD_STATE, | |
219 | (thread_state_t) & gp_regs, | |
220 | i386_THREAD_STATE_COUNT); | |
221 | MACH_CHECK_ERROR (ret); | |
222 | } | |
223 | ||
224 | if (regno == -1 | |
225 | || (regno >= I386_ST0_REGNUM && regno < I386_SSE_NUM_REGS)) | |
226 | { | |
227 | i386_float_state_t fp_regs; | |
228 | unsigned int fp_count = i386_FLOAT_STATE_COUNT; | |
229 | kern_return_t ret; | |
230 | ||
231 | ret = thread_get_state | |
232 | (current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs, | |
233 | &fp_count); | |
234 | MACH_CHECK_ERROR (ret); | |
235 | ||
236 | i387_collect_fxsave (regcache, regno, &fp_regs.__fpu_fcw); | |
237 | ||
238 | ret = thread_set_state (current_thread, i386_FLOAT_STATE, | |
239 | (thread_state_t) & fp_regs, | |
240 | i386_FLOAT_STATE_COUNT); | |
241 | MACH_CHECK_ERROR (ret); | |
242 | } | |
243 | } | |
244 | } | |
245 | ||
246 | ||
247 | /* Support for debug registers, boosted mostly from i386-linux-nat.c. */ | |
248 | ||
249 | #ifndef DR_FIRSTADDR | |
250 | #define DR_FIRSTADDR 0 | |
251 | #endif | |
252 | ||
253 | #ifndef DR_LASTADDR | |
254 | #define DR_LASTADDR 3 | |
255 | #endif | |
256 | ||
257 | #ifndef DR_STATUS | |
258 | #define DR_STATUS 6 | |
259 | #endif | |
260 | ||
261 | #ifndef DR_CONTROL | |
262 | #define DR_CONTROL 7 | |
263 | #endif | |
264 | ||
265 | ||
266 | static void | |
267 | i386_darwin_dr_set (int regnum, uint32_t value) | |
268 | { | |
269 | int current_pid; | |
270 | thread_t current_thread; | |
271 | x86_debug_state_t dr_regs; | |
272 | kern_return_t ret; | |
273 | unsigned int dr_count = x86_DEBUG_STATE_COUNT; | |
274 | ||
275 | gdb_assert (regnum >= 0 && regnum <= DR_CONTROL); | |
276 | ||
277 | current_thread = ptid_get_tid (inferior_ptid); | |
278 | ||
279 | dr_regs.dsh.flavor = x86_DEBUG_STATE32; | |
280 | dr_regs.dsh.count = x86_DEBUG_STATE32_COUNT; | |
281 | dr_count = x86_DEBUG_STATE_COUNT; | |
282 | ret = thread_get_state (current_thread, x86_DEBUG_STATE, | |
283 | (thread_state_t) &dr_regs, &dr_count); | |
284 | ||
285 | if (ret != KERN_SUCCESS) | |
286 | { | |
287 | printf_unfiltered (_("Error reading debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
288 | MACH_CHECK_ERROR (ret); | |
289 | } | |
290 | ||
291 | switch (regnum) | |
292 | { | |
293 | case 0: | |
294 | dr_regs.uds.ds32.__dr0 = value; | |
295 | break; | |
296 | case 1: | |
297 | dr_regs.uds.ds32.__dr1 = value; | |
298 | break; | |
299 | case 2: | |
300 | dr_regs.uds.ds32.__dr2 = value; | |
301 | break; | |
302 | case 3: | |
303 | dr_regs.uds.ds32.__dr3 = value; | |
304 | break; | |
305 | case 4: | |
306 | dr_regs.uds.ds32.__dr4 = value; | |
307 | break; | |
308 | case 5: | |
309 | dr_regs.uds.ds32.__dr5 = value; | |
310 | break; | |
311 | case 6: | |
312 | dr_regs.uds.ds32.__dr6 = value; | |
313 | break; | |
314 | case 7: | |
315 | dr_regs.uds.ds32.__dr7 = value; | |
316 | break; | |
317 | } | |
318 | ||
319 | ret = thread_set_state (current_thread, x86_DEBUG_STATE, | |
320 | (thread_state_t) &dr_regs, dr_count); | |
321 | ||
322 | if (ret != KERN_SUCCESS) | |
323 | { | |
324 | printf_unfiltered (_("Error writing debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
325 | MACH_CHECK_ERROR (ret); | |
326 | } | |
327 | } | |
328 | ||
329 | static uint32_t | |
330 | i386_darwin_dr_get (int regnum) | |
331 | { | |
332 | thread_t current_thread; | |
333 | x86_debug_state_t dr_regs; | |
334 | kern_return_t ret; | |
335 | unsigned int dr_count = x86_DEBUG_STATE_COUNT; | |
336 | ||
337 | gdb_assert (regnum >= 0 && regnum <= DR_CONTROL); | |
338 | ||
339 | current_thread = ptid_get_tid (inferior_ptid); | |
340 | ||
341 | dr_regs.dsh.flavor = x86_DEBUG_STATE32; | |
342 | dr_regs.dsh.count = x86_DEBUG_STATE32_COUNT; | |
343 | dr_count = x86_DEBUG_STATE_COUNT; | |
344 | ret = thread_get_state (current_thread, x86_DEBUG_STATE, | |
345 | (thread_state_t) &dr_regs, &dr_count); | |
346 | ||
347 | if (ret != KERN_SUCCESS) | |
348 | { | |
349 | printf_unfiltered (_("Error reading debug registers thread 0x%x via thread_get_state\n"), (int) current_thread); | |
350 | MACH_CHECK_ERROR (ret); | |
351 | } | |
352 | ||
353 | switch (regnum) | |
354 | { | |
355 | case 0: | |
356 | return dr_regs.uds.ds32.__dr0; | |
357 | case 1: | |
358 | return dr_regs.uds.ds32.__dr1; | |
359 | case 2: | |
360 | return dr_regs.uds.ds32.__dr2; | |
361 | case 3: | |
362 | return dr_regs.uds.ds32.__dr3; | |
363 | case 4: | |
364 | return dr_regs.uds.ds32.__dr4; | |
365 | case 5: | |
366 | return dr_regs.uds.ds32.__dr5; | |
367 | case 6: | |
368 | return dr_regs.uds.ds32.__dr6; | |
369 | case 7: | |
370 | return dr_regs.uds.ds32.__dr7; | |
371 | default: | |
372 | return -1; | |
373 | } | |
374 | } | |
375 | ||
376 | void | |
377 | i386_darwin_dr_set_control (unsigned long control) | |
378 | { | |
379 | i386_darwin_dr_set (DR_CONTROL, control); | |
380 | } | |
381 | ||
382 | void | |
383 | i386_darwin_dr_set_addr (int regnum, CORE_ADDR addr) | |
384 | { | |
385 | gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR); | |
386 | ||
387 | i386_darwin_dr_set (DR_FIRSTADDR + regnum, addr); | |
388 | } | |
389 | ||
390 | void | |
391 | i386_darwin_dr_reset_addr (int regnum) | |
392 | { | |
393 | gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR); | |
394 | ||
395 | i386_darwin_dr_set (DR_FIRSTADDR + regnum, 0L); | |
396 | } | |
397 | ||
398 | unsigned long | |
399 | i386_darwin_dr_get_status (void) | |
400 | { | |
401 | return i386_darwin_dr_get (DR_STATUS); | |
402 | } | |
403 | ||
404 | void | |
405 | darwin_check_osabi (darwin_inferior *inf, thread_t thread) | |
406 | { | |
407 | if (gdbarch_osabi (current_gdbarch) == GDB_OSABI_UNKNOWN) | |
408 | { | |
409 | /* Attaching to a process. Let's figure out what kind it is. */ | |
410 | x86_thread_state_t gp_regs; | |
411 | struct gdbarch_info info; | |
412 | unsigned int gp_count = x86_THREAD_STATE_COUNT; | |
413 | kern_return_t ret; | |
414 | ||
415 | ret = thread_get_state (thread, x86_THREAD_STATE, | |
416 | (thread_state_t) &gp_regs, &gp_count); | |
417 | if (ret != KERN_SUCCESS) | |
418 | { | |
419 | MACH_CHECK_ERROR (ret); | |
420 | return; | |
421 | } | |
422 | ||
423 | gdbarch_info_init (&info); | |
424 | gdbarch_info_fill (&info); | |
425 | info.byte_order = gdbarch_byte_order (current_gdbarch); | |
426 | info.osabi = GDB_OSABI_DARWIN; | |
427 | if (gp_regs.tsh.flavor == x86_THREAD_STATE64) | |
428 | info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386, | |
429 | bfd_mach_x86_64); | |
430 | else | |
431 | info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386, | |
432 | bfd_mach_i386_i386); | |
433 | gdbarch_update_p (info); | |
434 | } | |
435 | } | |
436 | ||
437 | #define X86_EFLAGS_T 0x100UL | |
438 | ||
acdb24a9 TG |
439 | /* Returning from a signal trampoline is done by calling a |
440 | special system call (sigreturn). This system call | |
441 | restores the registers that were saved when the signal was | |
442 | raised, including %eflags/%rflags. That means that single-stepping | |
443 | won't work. Instead, we'll have to modify the signal context | |
444 | that's about to be restored, and set the trace flag there. */ | |
445 | ||
446 | static int | |
447 | i386_darwin_sstep_at_sigreturn (x86_thread_state_t *regs) | |
448 | { | |
449 | static const gdb_byte darwin_syscall[] = { 0xcd, 0x80 }; /* int 0x80 */ | |
450 | gdb_byte buf[sizeof (darwin_syscall)]; | |
451 | ||
452 | /* Check if PC is at a sigreturn system call. */ | |
453 | if (target_read_memory (regs->uts.ts32.__eip, buf, sizeof (buf)) == 0 | |
454 | && memcmp (buf, darwin_syscall, sizeof (darwin_syscall)) == 0 | |
455 | && regs->uts.ts32.__eax == 0xb8 /* SYS_sigreturn */) | |
456 | { | |
457 | ULONGEST uctx_addr; | |
458 | ULONGEST mctx_addr; | |
459 | ULONGEST flags_addr; | |
460 | unsigned int eflags; | |
461 | ||
462 | uctx_addr = read_memory_unsigned_integer (regs->uts.ts32.__esp + 4, 4); | |
463 | mctx_addr = read_memory_unsigned_integer (uctx_addr + 28, 4); | |
464 | ||
465 | flags_addr = mctx_addr + 12 + 9 * 4; | |
466 | read_memory (flags_addr, (gdb_byte *) &eflags, 4); | |
467 | eflags |= X86_EFLAGS_T; | |
468 | write_memory (flags_addr, (gdb_byte *) &eflags, 4); | |
469 | ||
470 | return 1; | |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static int | |
476 | amd64_darwin_sstep_at_sigreturn (x86_thread_state_t *regs) | |
477 | { | |
478 | static const gdb_byte darwin_syscall[] = { 0x0f, 0x05 }; /* syscall */ | |
479 | gdb_byte buf[sizeof (darwin_syscall)]; | |
480 | ||
481 | /* Check if PC is at a sigreturn system call. */ | |
482 | if (target_read_memory (regs->uts.ts64.__rip, buf, sizeof (buf)) == 0 | |
483 | && memcmp (buf, darwin_syscall, sizeof (darwin_syscall)) == 0 | |
484 | && (regs->uts.ts64.__rax & 0xffffffff) == 0x20000b8 /* SYS_sigreturn */) | |
485 | { | |
486 | ULONGEST mctx_addr; | |
487 | ULONGEST flags_addr; | |
488 | unsigned int rflags; | |
489 | ||
490 | mctx_addr = read_memory_unsigned_integer (regs->uts.ts64.__rdi + 48, 8); | |
491 | flags_addr = mctx_addr + 16 + 17 * 8; | |
492 | ||
493 | /* AMD64 is little endian. */ | |
494 | read_memory (flags_addr, (gdb_byte *) &rflags, 4); | |
495 | rflags |= X86_EFLAGS_T; | |
496 | write_memory (flags_addr, (gdb_byte *) &rflags, 4); | |
497 | ||
498 | return 1; | |
499 | } | |
500 | return 0; | |
501 | } | |
502 | ||
a80b95ba TG |
503 | void |
504 | darwin_set_sstep (thread_t thread, int enable) | |
505 | { | |
506 | x86_thread_state_t regs; | |
507 | unsigned int count = x86_THREAD_STATE_COUNT; | |
508 | kern_return_t kret; | |
509 | ||
510 | kret = thread_get_state (thread, x86_THREAD_STATE, | |
511 | (thread_state_t) ®s, &count); | |
512 | if (kret != KERN_SUCCESS) | |
513 | { | |
514 | printf_unfiltered (_("darwin_set_sstep: error %x, thread=%x\n"), | |
515 | kret, thread); | |
516 | return; | |
517 | } | |
acdb24a9 | 518 | |
a80b95ba TG |
519 | switch (regs.tsh.flavor) |
520 | { | |
521 | case x86_THREAD_STATE32: | |
522 | { | |
523 | __uint32_t bit = enable ? X86_EFLAGS_T : 0; | |
524 | ||
acdb24a9 TG |
525 | if (enable && i386_darwin_sstep_at_sigreturn (®s)) |
526 | return; | |
a80b95ba TG |
527 | if ((regs.uts.ts32.__eflags & X86_EFLAGS_T) == bit) |
528 | return; | |
529 | regs.uts.ts32.__eflags = (regs.uts.ts32.__eflags & ~X86_EFLAGS_T) | bit; | |
530 | kret = thread_set_state (thread, x86_THREAD_STATE, | |
531 | (thread_state_t) ®s, count); | |
532 | MACH_CHECK_ERROR (kret); | |
533 | } | |
534 | break; | |
535 | case x86_THREAD_STATE64: | |
536 | { | |
537 | __uint64_t bit = enable ? X86_EFLAGS_T : 0; | |
538 | ||
acdb24a9 TG |
539 | if (enable && amd64_darwin_sstep_at_sigreturn (®s)) |
540 | return; | |
a80b95ba TG |
541 | if ((regs.uts.ts64.__rflags & X86_EFLAGS_T) == bit) |
542 | return; | |
543 | regs.uts.ts64.__rflags = (regs.uts.ts64.__rflags & ~X86_EFLAGS_T) | bit; | |
544 | kret = thread_set_state (thread, x86_THREAD_STATE, | |
545 | (thread_state_t) ®s, count); | |
546 | MACH_CHECK_ERROR (kret); | |
547 | } | |
548 | break; | |
549 | default: | |
550 | error (_("darwin_set_sstep: unknown flavour: %d\n"), regs.tsh.flavor); | |
551 | } | |
552 | } | |
553 | ||
554 | void | |
555 | darwin_complete_target (struct target_ops *target) | |
556 | { | |
557 | amd64_native_gregset64_reg_offset = amd64_darwin_thread_state_reg_offset; | |
558 | amd64_native_gregset64_num_regs = amd64_darwin_thread_state_num_regs; | |
559 | amd64_native_gregset32_reg_offset = i386_darwin_thread_state_reg_offset; | |
560 | amd64_native_gregset32_num_regs = i386_darwin_thread_state_num_regs; | |
561 | ||
562 | target->to_fetch_registers = i386_darwin_fetch_inferior_registers; | |
563 | target->to_store_registers = i386_darwin_store_inferior_registers; | |
564 | } |