Commit | Line | Data |
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a4b6fc86 AC |
1 | /* Motorola m68k native support for GNU/Linux. |
2 | ||
b811d2c2 | 3 | Copyright (C) 1996-2020 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "frame.h" | |
22 | #include "inferior.h" | |
23 | #include "language.h" | |
24 | #include "gdbcore.h" | |
4e052eda | 25 | #include "regcache.h" |
10d6c8cd DJ |
26 | #include "target.h" |
27 | #include "linux-nat.h" | |
a7cdaa91 | 28 | #include "gdbarch.h" |
c906108c | 29 | |
32eeb91a AS |
30 | #include "m68k-tdep.h" |
31 | ||
c906108c SS |
32 | #include <sys/dir.h> |
33 | #include <signal.h> | |
5826e159 | 34 | #include "nat/gdb_ptrace.h" |
c906108c SS |
35 | #include <sys/user.h> |
36 | #include <sys/ioctl.h> | |
37 | #include <fcntl.h> | |
38 | #include <sys/procfs.h> | |
39 | ||
0280a90a AS |
40 | #ifdef HAVE_SYS_REG_H |
41 | #include <sys/reg.h> | |
42 | #endif | |
43 | ||
c906108c | 44 | #include <sys/file.h> |
53ce3c39 | 45 | #include <sys/stat.h> |
c906108c SS |
46 | |
47 | #include "floatformat.h" | |
48 | ||
025bb325 | 49 | /* Prototypes for supply_gregset etc. */ |
3e00823e | 50 | #include "gregset.h" |
7b8b6d6d AS |
51 | |
52 | /* Defines ps_err_e, struct ps_prochandle. */ | |
53 | #include "gdb_proc_service.h" | |
54 | ||
bcc0c096 SM |
55 | #include "inf-ptrace.h" |
56 | ||
7b8b6d6d AS |
57 | #ifndef PTRACE_GET_THREAD_AREA |
58 | #define PTRACE_GET_THREAD_AREA 25 | |
59 | #endif | |
c906108c | 60 | \f |
f6ac5f3d PA |
61 | |
62 | class m68k_linux_nat_target final : public linux_nat_target | |
63 | { | |
64 | public: | |
65 | /* Add our register access methods. */ | |
66 | void fetch_registers (struct regcache *, int) override; | |
67 | void store_registers (struct regcache *, int) override; | |
68 | }; | |
69 | ||
70 | static m68k_linux_nat_target the_m68k_linux_nat_target; | |
71 | ||
c9f4d572 | 72 | /* This table must line up with gdbarch_register_name in "m68k-tdep.c". */ |
c5aa993b | 73 | static const int regmap[] = |
c906108c SS |
74 | { |
75 | PT_D0, PT_D1, PT_D2, PT_D3, PT_D4, PT_D5, PT_D6, PT_D7, | |
76 | PT_A0, PT_A1, PT_A2, PT_A3, PT_A4, PT_A5, PT_A6, PT_USP, | |
77 | PT_SR, PT_PC, | |
78 | /* PT_FP0, ..., PT_FP7 */ | |
79 | 21, 24, 27, 30, 33, 36, 39, 42, | |
80 | /* PT_FPCR, PT_FPSR, PT_FPIAR */ | |
81 | 45, 46, 47 | |
82 | }; | |
83 | ||
0280a90a AS |
84 | /* Which ptrace request retrieves which registers? |
85 | These apply to the corresponding SET requests as well. */ | |
86 | #define NUM_GREGS (18) | |
87 | #define MAX_NUM_REGS (NUM_GREGS + 11) | |
88 | ||
0c13fc49 | 89 | static int |
0280a90a AS |
90 | getregs_supplies (int regno) |
91 | { | |
92 | return 0 <= regno && regno < NUM_GREGS; | |
93 | } | |
94 | ||
0c13fc49 | 95 | static int |
0280a90a AS |
96 | getfpregs_supplies (int regno) |
97 | { | |
4ed226fe | 98 | return M68K_FP0_REGNUM <= regno && regno <= M68K_FPI_REGNUM; |
0280a90a AS |
99 | } |
100 | ||
101 | /* Does the current host support the GETREGS request? */ | |
0c13fc49 | 102 | static int have_ptrace_getregs = |
0280a90a AS |
103 | #ifdef HAVE_PTRACE_GETREGS |
104 | 1 | |
105 | #else | |
106 | 0 | |
107 | #endif | |
108 | ; | |
109 | ||
110 | \f | |
111 | ||
0280a90a AS |
112 | /* Fetching registers directly from the U area, one at a time. */ |
113 | ||
0280a90a AS |
114 | /* Fetch one register. */ |
115 | ||
116 | static void | |
56be3814 | 117 | fetch_register (struct regcache *regcache, int regno) |
0280a90a | 118 | { |
ac7936df | 119 | struct gdbarch *gdbarch = regcache->arch (); |
89e028e2 | 120 | long regaddr, val; |
52f0bd74 | 121 | int i; |
975c21ab | 122 | gdb_byte buf[M68K_MAX_REGISTER_SIZE]; |
222312d3 | 123 | pid_t tid = get_ptrace_pid (regcache->ptid ()); |
0280a90a | 124 | |
de732108 | 125 | regaddr = 4 * regmap[regno]; |
335d71d6 | 126 | for (i = 0; i < register_size (gdbarch, regno); i += sizeof (long)) |
0280a90a AS |
127 | { |
128 | errno = 0; | |
89e028e2 AS |
129 | val = ptrace (PTRACE_PEEKUSER, tid, regaddr, 0); |
130 | memcpy (&buf[i], &val, sizeof (long)); | |
335d71d6 | 131 | regaddr += sizeof (long); |
0280a90a | 132 | if (errno != 0) |
335d71d6 AS |
133 | error (_("Couldn't read register %s (#%d): %s."), |
134 | gdbarch_register_name (gdbarch, regno), | |
135 | regno, safe_strerror (errno)); | |
0280a90a | 136 | } |
73e1c03f | 137 | regcache->raw_supply (regno, buf); |
0280a90a AS |
138 | } |
139 | ||
140 | /* Fetch register values from the inferior. | |
141 | If REGNO is negative, do this for all registers. | |
025bb325 | 142 | Otherwise, REGNO specifies which register (so we can save time). */ |
c906108c | 143 | |
10d6c8cd | 144 | static void |
56be3814 | 145 | old_fetch_inferior_registers (struct regcache *regcache, int regno) |
0280a90a AS |
146 | { |
147 | if (regno >= 0) | |
148 | { | |
56be3814 | 149 | fetch_register (regcache, regno); |
0280a90a AS |
150 | } |
151 | else | |
152 | { | |
c984b7ff | 153 | for (regno = 0; |
ac7936df | 154 | regno < gdbarch_num_regs (regcache->arch ()); |
c984b7ff | 155 | regno++) |
0280a90a | 156 | { |
56be3814 | 157 | fetch_register (regcache, regno); |
0280a90a AS |
158 | } |
159 | } | |
160 | } | |
161 | ||
025bb325 | 162 | /* Store one register. */ |
0280a90a AS |
163 | |
164 | static void | |
56be3814 | 165 | store_register (const struct regcache *regcache, int regno) |
0280a90a | 166 | { |
ac7936df | 167 | struct gdbarch *gdbarch = regcache->arch (); |
89e028e2 | 168 | long regaddr, val; |
52f0bd74 | 169 | int i; |
975c21ab | 170 | gdb_byte buf[M68K_MAX_REGISTER_SIZE]; |
222312d3 | 171 | pid_t tid = get_ptrace_pid (regcache->ptid ()); |
0280a90a | 172 | |
de732108 | 173 | regaddr = 4 * regmap[regno]; |
9852326a | 174 | |
025bb325 | 175 | /* Put the contents of regno into a local buffer. */ |
34a79281 | 176 | regcache->raw_collect (regno, buf); |
9852326a | 177 | |
025bb325 | 178 | /* Store the local buffer into the inferior a chunk at the time. */ |
335d71d6 | 179 | for (i = 0; i < register_size (gdbarch, regno); i += sizeof (long)) |
0280a90a AS |
180 | { |
181 | errno = 0; | |
89e028e2 AS |
182 | memcpy (&val, &buf[i], sizeof (long)); |
183 | ptrace (PTRACE_POKEUSER, tid, regaddr, val); | |
335d71d6 | 184 | regaddr += sizeof (long); |
0280a90a | 185 | if (errno != 0) |
335d71d6 AS |
186 | error (_("Couldn't write register %s (#%d): %s."), |
187 | gdbarch_register_name (gdbarch, regno), | |
188 | regno, safe_strerror (errno)); | |
0280a90a AS |
189 | } |
190 | } | |
191 | ||
192 | /* Store our register values back into the inferior. | |
193 | If REGNO is negative, do this for all registers. | |
194 | Otherwise, REGNO specifies which register (so we can save time). */ | |
195 | ||
10d6c8cd | 196 | static void |
56be3814 | 197 | old_store_inferior_registers (const struct regcache *regcache, int regno) |
0280a90a AS |
198 | { |
199 | if (regno >= 0) | |
200 | { | |
56be3814 | 201 | store_register (regcache, regno); |
0280a90a AS |
202 | } |
203 | else | |
204 | { | |
c984b7ff | 205 | for (regno = 0; |
ac7936df | 206 | regno < gdbarch_num_regs (regcache->arch ()); |
c984b7ff | 207 | regno++) |
0280a90a | 208 | { |
56be3814 | 209 | store_register (regcache, regno); |
0280a90a AS |
210 | } |
211 | } | |
212 | } | |
213 | \f | |
f175af98 DJ |
214 | /* Given a pointer to a general register set in /proc format |
215 | (elf_gregset_t *), unpack the register contents and supply | |
025bb325 | 216 | them as gdb's idea of the current register values. */ |
c906108c | 217 | |
c906108c | 218 | void |
7f7fe91e | 219 | supply_gregset (struct regcache *regcache, const elf_gregset_t *gregsetp) |
c906108c | 220 | { |
ac7936df | 221 | struct gdbarch *gdbarch = regcache->arch (); |
7f7fe91e | 222 | const elf_greg_t *regp = (const elf_greg_t *) gregsetp; |
c906108c SS |
223 | int regi; |
224 | ||
3e8c568d | 225 | for (regi = M68K_D0_REGNUM; |
c984b7ff | 226 | regi <= gdbarch_sp_regnum (gdbarch); |
3e8c568d | 227 | regi++) |
73e1c03f SM |
228 | regcache->raw_supply (regi, ®p[regmap[regi]]); |
229 | regcache->raw_supply (gdbarch_ps_regnum (gdbarch), ®p[PT_SR]); | |
230 | regcache->raw_supply (gdbarch_pc_regnum (gdbarch), ®p[PT_PC]); | |
0280a90a AS |
231 | } |
232 | ||
233 | /* Fill register REGNO (if it is a general-purpose register) in | |
234 | *GREGSETPS with the value in GDB's register array. If REGNO is -1, | |
235 | do this for all registers. */ | |
236 | void | |
7f7fe91e UW |
237 | fill_gregset (const struct regcache *regcache, |
238 | elf_gregset_t *gregsetp, int regno) | |
0280a90a AS |
239 | { |
240 | elf_greg_t *regp = (elf_greg_t *) gregsetp; | |
241 | int i; | |
242 | ||
243 | for (i = 0; i < NUM_GREGS; i++) | |
8de307e0 | 244 | if (regno == -1 || regno == i) |
34a79281 | 245 | regcache->raw_collect (i, regp + regmap[i]); |
0280a90a AS |
246 | } |
247 | ||
248 | #ifdef HAVE_PTRACE_GETREGS | |
249 | ||
250 | /* Fetch all general-purpose registers from process/thread TID and | |
251 | store their values in GDB's register array. */ | |
252 | ||
253 | static void | |
56be3814 | 254 | fetch_regs (struct regcache *regcache, int tid) |
0280a90a AS |
255 | { |
256 | elf_gregset_t regs; | |
257 | ||
258 | if (ptrace (PTRACE_GETREGS, tid, 0, (int) ®s) < 0) | |
259 | { | |
260 | if (errno == EIO) | |
261 | { | |
262 | /* The kernel we're running on doesn't support the GETREGS | |
dda83cd7 | 263 | request. Reset `have_ptrace_getregs'. */ |
0280a90a AS |
264 | have_ptrace_getregs = 0; |
265 | return; | |
266 | } | |
267 | ||
e2e0b3e5 | 268 | perror_with_name (_("Couldn't get registers")); |
0280a90a AS |
269 | } |
270 | ||
56be3814 | 271 | supply_gregset (regcache, (const elf_gregset_t *) ®s); |
c906108c SS |
272 | } |
273 | ||
0280a90a AS |
274 | /* Store all valid general-purpose registers in GDB's register array |
275 | into the process/thread specified by TID. */ | |
276 | ||
277 | static void | |
56be3814 | 278 | store_regs (const struct regcache *regcache, int tid, int regno) |
0280a90a AS |
279 | { |
280 | elf_gregset_t regs; | |
281 | ||
282 | if (ptrace (PTRACE_GETREGS, tid, 0, (int) ®s) < 0) | |
e2e0b3e5 | 283 | perror_with_name (_("Couldn't get registers")); |
0280a90a | 284 | |
56be3814 | 285 | fill_gregset (regcache, ®s, regno); |
0280a90a AS |
286 | |
287 | if (ptrace (PTRACE_SETREGS, tid, 0, (int) ®s) < 0) | |
e2e0b3e5 | 288 | perror_with_name (_("Couldn't write registers")); |
0280a90a AS |
289 | } |
290 | ||
291 | #else | |
292 | ||
025bb325 MS |
293 | static void fetch_regs (struct regcache *regcache, int tid) |
294 | { | |
295 | } | |
296 | ||
297 | static void store_regs (const struct regcache *regcache, int tid, int regno) | |
298 | { | |
299 | } | |
0280a90a AS |
300 | |
301 | #endif | |
302 | ||
303 | \f | |
304 | /* Transfering floating-point registers between GDB, inferiors and cores. */ | |
305 | ||
306 | /* What is the address of fpN within the floating-point register set F? */ | |
7f7fe91e | 307 | #define FPREG_ADDR(f, n) (&(f)->fpregs[(n) * 3]) |
0280a90a AS |
308 | |
309 | /* Fill GDB's register array with the floating-point register values in | |
310 | *FPREGSETP. */ | |
c906108c | 311 | |
c5aa993b | 312 | void |
7f7fe91e | 313 | supply_fpregset (struct regcache *regcache, const elf_fpregset_t *fpregsetp) |
c906108c | 314 | { |
ac7936df | 315 | struct gdbarch *gdbarch = regcache->arch (); |
c906108c SS |
316 | int regi; |
317 | ||
c984b7ff UW |
318 | for (regi = gdbarch_fp0_regnum (gdbarch); |
319 | regi < gdbarch_fp0_regnum (gdbarch) + 8; regi++) | |
73e1c03f SM |
320 | regcache->raw_supply |
321 | (regi, FPREG_ADDR (fpregsetp, regi - gdbarch_fp0_regnum (gdbarch))); | |
322 | regcache->raw_supply (M68K_FPC_REGNUM, &fpregsetp->fpcntl[0]); | |
323 | regcache->raw_supply (M68K_FPS_REGNUM, &fpregsetp->fpcntl[1]); | |
324 | regcache->raw_supply (M68K_FPI_REGNUM, &fpregsetp->fpcntl[2]); | |
c906108c SS |
325 | } |
326 | ||
0280a90a AS |
327 | /* Fill register REGNO (if it is a floating-point register) in |
328 | *FPREGSETP with the value in GDB's register array. If REGNO is -1, | |
329 | do this for all registers. */ | |
330 | ||
331 | void | |
7f7fe91e UW |
332 | fill_fpregset (const struct regcache *regcache, |
333 | elf_fpregset_t *fpregsetp, int regno) | |
0280a90a | 334 | { |
ac7936df | 335 | struct gdbarch *gdbarch = regcache->arch (); |
0280a90a AS |
336 | int i; |
337 | ||
338 | /* Fill in the floating-point registers. */ | |
c984b7ff UW |
339 | for (i = gdbarch_fp0_regnum (gdbarch); |
340 | i < gdbarch_fp0_regnum (gdbarch) + 8; i++) | |
0280a90a | 341 | if (regno == -1 || regno == i) |
34a79281 SM |
342 | regcache->raw_collect |
343 | (i, FPREG_ADDR (fpregsetp, i - gdbarch_fp0_regnum (gdbarch))); | |
0280a90a AS |
344 | |
345 | /* Fill in the floating-point control registers. */ | |
32eeb91a | 346 | for (i = M68K_FPC_REGNUM; i <= M68K_FPI_REGNUM; i++) |
0280a90a | 347 | if (regno == -1 || regno == i) |
34a79281 | 348 | regcache->raw_collect (i, &fpregsetp->fpcntl[i - M68K_FPC_REGNUM]); |
0280a90a AS |
349 | } |
350 | ||
351 | #ifdef HAVE_PTRACE_GETREGS | |
352 | ||
353 | /* Fetch all floating-point registers from process/thread TID and store | |
354 | thier values in GDB's register array. */ | |
355 | ||
356 | static void | |
56be3814 | 357 | fetch_fpregs (struct regcache *regcache, int tid) |
0280a90a AS |
358 | { |
359 | elf_fpregset_t fpregs; | |
360 | ||
361 | if (ptrace (PTRACE_GETFPREGS, tid, 0, (int) &fpregs) < 0) | |
e2e0b3e5 | 362 | perror_with_name (_("Couldn't get floating point status")); |
0280a90a | 363 | |
56be3814 | 364 | supply_fpregset (regcache, (const elf_fpregset_t *) &fpregs); |
0280a90a AS |
365 | } |
366 | ||
367 | /* Store all valid floating-point registers in GDB's register array | |
368 | into the process/thread specified by TID. */ | |
369 | ||
370 | static void | |
56be3814 | 371 | store_fpregs (const struct regcache *regcache, int tid, int regno) |
0280a90a AS |
372 | { |
373 | elf_fpregset_t fpregs; | |
374 | ||
375 | if (ptrace (PTRACE_GETFPREGS, tid, 0, (int) &fpregs) < 0) | |
e2e0b3e5 | 376 | perror_with_name (_("Couldn't get floating point status")); |
0280a90a | 377 | |
56be3814 | 378 | fill_fpregset (regcache, &fpregs, regno); |
0280a90a AS |
379 | |
380 | if (ptrace (PTRACE_SETFPREGS, tid, 0, (int) &fpregs) < 0) | |
e2e0b3e5 | 381 | perror_with_name (_("Couldn't write floating point status")); |
0280a90a AS |
382 | } |
383 | ||
384 | #else | |
385 | ||
025bb325 MS |
386 | static void fetch_fpregs (struct regcache *regcache, int tid) |
387 | { | |
388 | } | |
389 | ||
390 | static void store_fpregs (const struct regcache *regcache, int tid, int regno) | |
391 | { | |
392 | } | |
0280a90a | 393 | |
c906108c | 394 | #endif |
0280a90a AS |
395 | \f |
396 | /* Transferring arbitrary registers between GDB and inferior. */ | |
397 | ||
398 | /* Fetch register REGNO from the child process. If REGNO is -1, do | |
399 | this for all registers (including the floating point and SSE | |
400 | registers). */ | |
401 | ||
f6ac5f3d PA |
402 | void |
403 | m68k_linux_nat_target::fetch_registers (struct regcache *regcache, int regno) | |
0280a90a | 404 | { |
bcc0c096 | 405 | pid_t tid; |
0280a90a AS |
406 | |
407 | /* Use the old method of peeking around in `struct user' if the | |
408 | GETREGS request isn't available. */ | |
409 | if (! have_ptrace_getregs) | |
410 | { | |
56be3814 | 411 | old_fetch_inferior_registers (regcache, regno); |
0280a90a AS |
412 | return; |
413 | } | |
414 | ||
222312d3 | 415 | tid = get_ptrace_pid (regcache->ptid ()); |
f175af98 | 416 | |
0280a90a AS |
417 | /* Use the PTRACE_GETFPXREGS request whenever possible, since it |
418 | transfers more registers in one system call, and we'll cache the | |
419 | results. But remember that fetch_fpxregs can fail, and return | |
420 | zero. */ | |
421 | if (regno == -1) | |
422 | { | |
56be3814 | 423 | fetch_regs (regcache, tid); |
0280a90a AS |
424 | |
425 | /* The call above might reset `have_ptrace_getregs'. */ | |
426 | if (! have_ptrace_getregs) | |
427 | { | |
56be3814 | 428 | old_fetch_inferior_registers (regcache, -1); |
0280a90a AS |
429 | return; |
430 | } | |
431 | ||
56be3814 | 432 | fetch_fpregs (regcache, tid); |
0280a90a AS |
433 | return; |
434 | } | |
435 | ||
436 | if (getregs_supplies (regno)) | |
437 | { | |
56be3814 | 438 | fetch_regs (regcache, tid); |
0280a90a AS |
439 | return; |
440 | } | |
441 | ||
442 | if (getfpregs_supplies (regno)) | |
443 | { | |
56be3814 | 444 | fetch_fpregs (regcache, tid); |
0280a90a AS |
445 | return; |
446 | } | |
447 | ||
448 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 449 | _("Got request for bad register number %d."), regno); |
0280a90a AS |
450 | } |
451 | ||
452 | /* Store register REGNO back into the child process. If REGNO is -1, | |
453 | do this for all registers (including the floating point and SSE | |
454 | registers). */ | |
f6ac5f3d PA |
455 | void |
456 | m68k_linux_nat_target::store_registers (struct regcache *regcache, int regno) | |
0280a90a | 457 | { |
bcc0c096 | 458 | pid_t tid; |
0280a90a AS |
459 | |
460 | /* Use the old method of poking around in `struct user' if the | |
461 | SETREGS request isn't available. */ | |
462 | if (! have_ptrace_getregs) | |
463 | { | |
56be3814 | 464 | old_store_inferior_registers (regcache, regno); |
0280a90a AS |
465 | return; |
466 | } | |
467 | ||
222312d3 | 468 | tid = get_ptrace_pid (regcache->ptid ()); |
0280a90a AS |
469 | |
470 | /* Use the PTRACE_SETFPREGS requests whenever possible, since it | |
471 | transfers more registers in one system call. But remember that | |
472 | store_fpregs can fail, and return zero. */ | |
473 | if (regno == -1) | |
474 | { | |
56be3814 UW |
475 | store_regs (regcache, tid, regno); |
476 | store_fpregs (regcache, tid, regno); | |
0280a90a AS |
477 | return; |
478 | } | |
479 | ||
480 | if (getregs_supplies (regno)) | |
481 | { | |
56be3814 | 482 | store_regs (regcache, tid, regno); |
0280a90a AS |
483 | return; |
484 | } | |
485 | ||
486 | if (getfpregs_supplies (regno)) | |
487 | { | |
56be3814 | 488 | store_fpregs (regcache, tid, regno); |
0280a90a AS |
489 | return; |
490 | } | |
491 | ||
492 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 493 | _("Got request to store bad register number %d."), regno); |
0280a90a | 494 | } |
f175af98 | 495 | \f |
c5aa993b | 496 | |
7b8b6d6d AS |
497 | /* Fetch the thread-local storage pointer for libthread_db. */ |
498 | ||
499 | ps_err_e | |
754653a7 | 500 | ps_get_thread_area (struct ps_prochandle *ph, |
7b8b6d6d AS |
501 | lwpid_t lwpid, int idx, void **base) |
502 | { | |
503 | if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) < 0) | |
504 | return PS_ERR; | |
505 | ||
506 | /* IDX is the bias from the thread pointer to the beginning of the | |
507 | thread descriptor. It has to be subtracted due to implementation | |
508 | quirks in libthread_db. */ | |
509 | *base = (char *) *base - idx; | |
510 | ||
511 | return PS_OK; | |
512 | } | |
10d6c8cd | 513 | |
6c265988 | 514 | void _initialize_m68k_linux_nat (); |
f175af98 | 515 | void |
6c265988 | 516 | _initialize_m68k_linux_nat () |
f175af98 | 517 | { |
10d6c8cd | 518 | /* Register the target. */ |
f6ac5f3d | 519 | linux_target = &the_m68k_linux_nat_target; |
d9f719f1 | 520 | add_inf_child_target (&the_m68k_linux_nat_target); |
f175af98 | 521 | } |